SERIES 1300
OXYGEN DEFICIENCY MONITOR
USER MANUAL
CAUTION
Please read this manual before using the Series 1300 Oxygen Deficiency Monitor. Instructions
within the manual are essential for the proper operation of this product.
40 Albion Road, Lincoln, RI, USA 02865
Tel: (001) (401) 333-8580
Fax: (001) (401) 333-5550
Email: contact@aoi-corp.com
Website: www.aoi-corp.com
Rev 1.0915, September 2017
© COPYRIGHT 2014. Alpha Omega Instruments Corp. All
rights reserved including the right to reproduce this
manual or any portion thereof in any form.
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
WARRANTY
Alpha Omega Instruments Corp. warrants that delivered products are free from defects in material
and workmanship at the time of delivery to the FOB point specified in the purchase order. Liability
under this warranty is limited to repairing or replacing, at Alpha Omega Instruments' option, items
which are returned to it prepaid within four years (including sensor) from the date of shipment and
found to Seller’s satisfaction to have been defective.
Alpha Omega Instrument's four (4) year sensor warranty provides protection for four years from the
date of shipment of the Series 1300 Oxygen Deficiency Monitor. Any sensor from a Series 1300
Oxygen Deficiency Monitor that fails under normal use must be returned to Seller prepaid and, if such
sensor is determined by Seller to be defective, Seller shall provide Buyer with a replacement sensor.
Buyer must provide the serial number of the monitor from which the sensor has been removed. If a
sensor is found to be defective and a new one issued, the warranty of the replacement sensor(s) shall
not extend beyond the initial warranty period of the Series 1300 Oxygen Deficiency Monitor, or for a
period of one year, whichever is longer. After this, all replacement sensors will be warranted for a
period of one year from the date of shipment. In no event shall Alpha Omega Instruments Corp. be
liable for consequential damages.
NO PRODUCT IS WARRANTED AS BEING FIT FOR A PARTICULAR
PURPOSE AND THERE IS NO WARRANTY OF MERCHANTABILITY.
This warranty applies only if:
(i) the items are used solely under the operating conditions and manner recommended in this manual, product
specifications, or other product specific literature;
(ii) the items have not been misused or abused in any manner or unauthorized repairs were attempted thereon;
(iii) written notice of the failure within the warranty period is forwarded to Alpha Omega Instruments Corp. and, the
directions received for properly identifying items returned under warranty are followed;
(iv) the return notice authorizes Alpha Omega Instruments Corp. to examine and disassemble returned products to the
extent the Company deems necessary to ascertain the cause of failure.
The warranties stated herein are exclusive. THERE ARE NO OTHER WARRANTIES, EITHER
EXPRESSED OR IMPLIED, BEYOND THOSE SET FORTH HEREIN, and Alpha Omega Instruments
Corp. does not assume any other obligation or liability in connection with the sale or use of said
products.
Disclaimer of Warranty
Alpha Omega Instruments Corp. makes no representation or warranties, either expressed or implied, by or with respect to
anything in this manual, including, but not limited to, implied warranties of merchantability or fitness for a particular purpose.
In no event will Alpha Omega Instruments Corp. be liable for any damages, whether direct or indirect, special, consequential,
or incidental arising from the use of this manual. Some states in the USA do not allow the exclusion of incidental or
consequential damages. Alpha Omega Instruments Corp. also reserves the right to make any changes to improve the
performance of its products at any time and without notice.
Series 1300 Oxygen Deficiency Monitor PAGE i
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Table of Contents
WARRANTY..............................................................................................................................................i
1 Overview...............................................................................................................................................1
1.1 Explanation Of Graphic Symbols...................................................................................................1
1.2 Instrument Description...................................................................................................................1
1.2.1 Features.................................................................................................................................2
1.3 Mounting........................................................................................................................................2
1.4 Oxygen Sensor..............................................................................................................................2
1.5 Description Of Optional Equipment...............................................................................................3
1.6 Standard Features.........................................................................................................................4
1.7 Optional Features..........................................................................................................................4
1.8 General Specifications...................................................................................................................5
2 Installation.............................................................................................................................................6
2.1 Unpacking The Instrument.............................................................................................................6
2.2 Electrical Installation......................................................................................................................7
2.3 Mechanical Configuration..............................................................................................................7
2.3.1 Main Enclosure.......................................................................................................................8
2.3.2 Remote Oxygen Sensor Enclosure........................................................................................9
3 Wiring..................................................................................................................................................10
3.1 Local Oxygen Sensor...................................................................................................................11
3.1.1 Local Oxygen Sensor Installation.........................................................................................12
3.2 Power (TB1).................................................................................................................................13
3.3 Remote Oxygen Sensors.............................................................................................................14
3.3.1 Remote Oxygen Sensor Installation Procedure...................................................................15
3.4 Horn And Strobe...........................................................................................................................16
3.4.1 Horn and Strobe PCB...........................................................................................................17
3.4.2 Horn and Strobe Daisy Chain Configuration........................................................................18
3.4.3 Horn and Strobe Star Configuration.....................................................................................19
3.4.4 Horn and Strobe External Power..........................................................................................19
3.4.5 Horn and Strobe Relay Wiring..............................................................................................20
3.4.6 Horn and Strobe Switch Settings..........................................................................................20
3.4.7 Horn and Strobe Maximum Distance...................................................................................21
3.5 Analog Outputs.............................................................................................................................22
3.6 Alarm Relays................................................................................................................................22
3.6.1 Fail Safe................................................................................................................................23
3.7 RS-232/485 Communications......................................................................................................23
4 Operation.............................................................................................................................................24
4.1 Power ON.....................................................................................................................................24
4.2 Panel Description.........................................................................................................................24
4.3 Navigating The Screens...............................................................................................................24
4.3.1 Home Screen........................................................................................................................24
4.3.1.1 Three Line "Home" Screen................................................................................................25
4.3.1.2 Large Font Home Screen..................................................................................................25
4.3.2 Alert Screen..........................................................................................................................25
4.3.2.1 Navigating the Alert Screens.............................................................................................26
4.3.3 Active Alarms Screen............................................................................................................28
4.3.4 Alarm Status Screen.............................................................................................................28
PAGE ii Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
4.3.5 Main Menu Screen................................................................................................................29
4.4 Alarm System...............................................................................................................................29
4.4.1 Alarm System Menu Settings...............................................................................................30
4.4.2 Default Alarm Settings..........................................................................................................31
4.4.3 Default Alarm Activation Behavior........................................................................................31
4.4.4 Low Alarms vs High Alarms..................................................................................................31
4.4.5 Alarm Latching......................................................................................................................31
4.4.6 Relay Fail-safe Operation.....................................................................................................32
4.4.7 Navigating Alarms.................................................................................................................32
4.5 Horn And Strobe...........................................................................................................................33
4.5.1 Horn and Strobe Naming......................................................................................................34
4.6 Analog Outputs.............................................................................................................................34
4.6.1 Analog Output Sensor Association.......................................................................................34
4.6.2 Analog Output Range...........................................................................................................34
4.6.3 Analog Output Offset............................................................................................................35
4.6.4 Voltage Output Mode............................................................................................................35
4.7 Navigating The Menu...................................................................................................................36
4.7.1 Timing Out.............................................................................................................................36
4.8 Main Menu...................................................................................................................................37
4.8.1 Passcode..............................................................................................................................39
4.8.2 CALIBRATE..........................................................................................................................39
4.8.3 SENSOR SETUP..................................................................................................................39
4.8.3.1 Sensor Naming..................................................................................................................39
4.8.4 ALARM SETUP.....................................................................................................................39
4.8.4.1 Setting the Alarm Sensor...................................................................................................39
4.8.4.2 Setting the Alarm Set point................................................................................................40
4.8.4.3 Setting the Alarm High or Low...........................................................................................40
4.8.4.4 Setting the Alarm Latch.....................................................................................................40
4.8.4.5 Clearing a Latched Alarm..................................................................................................40
4.8.4.6 Activating Alarm Relays and Horn and Strobes................................................................40
4.8.5 FAILSAFE SETUP................................................................................................................41
4.8.6 OUTPUTS SETUP................................................................................................................41
4.8.6.1 Sensor................................................................................................................................41
4.8.6.2 Scale Low & Scale High....................................................................................................41
4.8.6.3 Analog Output Offset.........................................................................................................42
4.8.7 HORN & STROBES..............................................................................................................42
4.8.7.1 Naming the horn and strobe..............................................................................................42
4.8.8 DATA LOGGER.....................................................................................................................43
4.8.9 MISCELLANEOUS...............................................................................................................43
4.8.10 Field Elevation Adjustment.................................................................................................44
4.8.11 System Information (“SYSTEM INFO”)...............................................................................44
5 Data Logger.........................................................................................................................................45
5.1 Logger Operation.........................................................................................................................45
5.1.1 Logger State.........................................................................................................................45
5.1.2 Logger Mode.........................................................................................................................45
5.2 Sample Interval............................................................................................................................46
5.3 Date And Time..............................................................................................................................46
5.4 Sensor Selection..........................................................................................................................46
Series 1300 Oxygen Deficiency Monitor PAGE iii
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
6 Sensor Setup.......................................................................................................................................47
6.1 Sensor Removal...........................................................................................................................47
7 Calibration Procedures........................................................................................................................48
7.1 Routine Calibration Check...........................................................................................................48
7.2 Oxygen Calibration......................................................................................................................48
7.2.1 Calibration with Ambient Air..................................................................................................48
7.2.2 Calibration With Other Gases...............................................................................................48
7.2.3 Procedure for Checking Oxygen Calibration........................................................................49
7.3 Calibration On Ambient Air...........................................................................................................49
7.4 Optional Calibration Fixture.........................................................................................................49
7.5 NO Zero Adjustment....................................................................................................................50
7.6 Change Oxygen Sensor Notice...................................................................................................50
7.6.1 Replacing a Sensor..............................................................................................................50
8 Battery Backup....................................................................................................................................52
8.1 Battery Backup HALT...................................................................................................................52
8.2 Battery Backup Time....................................................................................................................53
8.3 Battery Status Screen..................................................................................................................54
9 Warnings..............................................................................................................................................55
9.1 Alarm Warnings............................................................................................................................55
9.2 Sensor Removal Warnings..........................................................................................................56
9.2.1 Scenario 1 – Dangerous Low Oxygen Level........................................................................56
9.2.2 Scenario 2 – Disconnected Oxygen Sensor.........................................................................56
9.3 Horn And Strobe Warnings..........................................................................................................56
9.3.1 Horn and Strobe Removal....................................................................................................56
9.3.2 Horn and Strobe Address Change........................................................................................56
10 Maintenance and Troubleshooting....................................................................................................57
10.1 User Maintenance......................................................................................................................57
10.2 Serviceable Items......................................................................................................................57
10.3 System Messages.....................................................................................................................57
11 Serial Communications......................................................................................................................59
11.1 Baud Rates.................................................................................................................................59
11.1.1 Setting the Baud Rate.........................................................................................................59
11.2 Line Endings...............................................................................................................................59
11.3 RS Echo.....................................................................................................................................59
11.4 Addressing..................................................................................................................................59
11.4.1 Address...............................................................................................................................60
11.5 Standard Commands.................................................................................................................60
11.5.1 Read....................................................................................................................................60
11.5.2 Write....................................................................................................................................61
11.6 RS485.........................................................................................................................................61
11.7 RS Security................................................................................................................................61
11.8 Variable Registers Table.............................................................................................................61
11.9 RS Data Logger..........................................................................................................................65
12 APPENDIX A – Main Enclosure Template.........................................................................................66
13 APPENDIX B – Remote Enclosure Template...................................................................................67
14 APPENDIX C – Terminal Block Reference.......................................................................................68
14.1 Standard AC Connections..........................................................................................................68
14.2 Remote Sensor And Horn And Strobe Connections..................................................................68
PAGE iv Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
14.3 PCB Connectors........................................................................................................................69
15 APPENDIX D – Horn and Strobe(s)..................................................................................................70
15.1 Externally Powered Horn And Strobe(s)....................................................................................70
15.2 Horn And Strobe Sound Switch Settings...................................................................................70
15.3 Horn And Strobe Tone Settings..................................................................................................71
15.4 Horn And Strobe Mechanical Details.........................................................................................72
15.5 Horn And Strobe PCB Detail......................................................................................................73
16 APPENDIX E – Remote with Calibration Fixture..............................................................................73
17 APPENDIX F – Oxygen Sensor Material Safety Data Sheet............................................................74
18 APPENDIX G – Battery Backup........................................................................................................78
18.1.1 Battery Temperature...........................................................................................................78
18.1.2 Battery Testing....................................................................................................................78
18.2 Battery Installation/Replacement...............................................................................................78
Figures
Figure 1 - Oxygen Sensor........................................................................................................................2
Figure 2 - Main Enclosure........................................................................................................................8
Figure 3 - Remote Oxygen Sensor Enclosure.........................................................................................9
Figure 4 - Bottom View 1 Of Series 1300...............................................................................................10
Figure 5 - Bottom View 2 Of Series 1300...............................................................................................11
Figure 6 - Oxygen Sensor......................................................................................................................11
Figure 7 - Local Oxygen Sensor Installation..........................................................................................12
Figure 8 - Local Oxygen Sensor Installation & Wiring...........................................................................13
Figure 9 - Remote Oxygen Sensor Enclosure.......................................................................................14
Figure 10 - Remote Oxygen Sensor Enclosure & PCB.........................................................................15
Figure 11 - Remote Oxygen Sensor.......................................................................................................15
Figure 12 - Horn And Strobe With PCB..................................................................................................17
Figure 13 - Horn And Strobe PCB..........................................................................................................17
Figure 14 - Wiring Horn And Strobes In Series (Daisy Chained)...........................................................18
Figure 15 - Wiring Horn And Strobes Individually..................................................................................19
Figure 16 - Externally Powered Horn And Strobes................................................................................19
Figure 17 - Wiring Horn And Strobes Using A Relay..............................................................................20
Figure 18 - SW1 Detail On Horn And Strobe PCB.................................................................................20
Figure 19 - Three Line Home Screen.....................................................................................................25
Figure 20 - Large Font Home Screen....................................................................................................25
Figure 21 - Main Alert Screens...............................................................................................................26
Figure 22 - Active Alarms Screen...........................................................................................................28
Figure 23 - Modified Active Alarms Screen............................................................................................28
Figure 24 - Alarm Status Screens..........................................................................................................28
Figure 25 - Main Menu Screen...............................................................................................................29
Figure 26 - Setting An Alarm..................................................................................................................30
Figure 27 - Horn And Strobe Detected...................................................................................................33
Figure 28 - Horn And Strobe Removed..................................................................................................33
Figure 29 - Main Menu...........................................................................................................................36
Figure 30 - Main Enclosure Template....................................................................................................66
Figure 31 - Remote Enclosure Template................................................................................................67
Series 1300 Oxygen Deficiency Monitor PAGE v
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Figure 32 - Horn And Strobe PCB Wiring Diagram................................................................................70
Figure 33 - Horn And Strobe Mechanical Details...................................................................................72
Figure 34 - Horn And Strobe PCB Detail...............................................................................................73
Figure 35 - Remote Oxygen Sensor Enclosure & Optional Calibration Fixture.....................................73
Tables
Table 1 - Power Connections (Terminal Block 1)...................................................................................13
Table 2 - Remote Oxygen Sensor Connections (Terminal Block 1).......................................................14
Table 3 - Horn And Strobe Connections (Terminal Block 1)...................................................................16
Table 4 - Horn And Strobe PCB Switch Settings....................................................................................21
Table 5 - Analog Output Connections.....................................................................................................22
Table 6 - Relay Connections..................................................................................................................22
Table 7 - Fail Safe Logic.........................................................................................................................23
Table 8 - RS232/485 Communications Wiring.......................................................................................23
Table 9 - Alert Screens...........................................................................................................................27
Table 10 - Overview Of Alarm Settings..................................................................................................30
Table 11 - Default Alarm Settings...........................................................................................................31
Table 12 - Alarm Status Screens............................................................................................................32
Table 13 - Analog Output Factory Default Settings................................................................................34
Table 14 - Main Menu.............................................................................................................................38
Table 15 - Data Logger Settings.............................................................................................................43
Table 16 - Miscellaneous Settings..........................................................................................................43
Table 17 - System Information...............................................................................................................44
Table 18 - Battery Backup Minimum Operating Times...........................................................................53
Table 19 - Battery Status Screens..........................................................................................................54
Table 20 - System Messages.................................................................................................................58
Table 21 - Variable Registers.................................................................................................................64
Table 22 - Logger Time / Interval Estimates...........................................................................................65
Table 23 - Logger RS Commands..........................................................................................................65
Table 24 - Horn And Strobe Sound Switch Settings...............................................................................71
PAGE vi Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
1 Overview
1.1 Explanation Of Graphic Symbols
The information listed below is essential to the proper operation of the monitor. Please review the
following safety precautions prior to using the monitor. Cautionary notes are included throughout this
manual.
WARNING MESSAGE
THIS SYMBOL IS INTENDED TO ALERT THE USER ABOUT GENERAL WARNINGS
AND IMPORTANT OPERATING AND MAINTENANCE INSTRUCTIONS.
WARNING
HAZARDOUS VOLTAGE. CONTACT MAY CAUSE ELECTRIC SHOCK OR BURN.
TURN OFF & LOCK OUT SYSTEM BEFORE SERVICING.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO POTENTIALLY
DANGEROUS SITUATIONS.
1.2 Instrument Description
The Series 1300 Oxygen Deficiency Monitor allows for the simultaneous monitoring of breathing air
oxygen using up to three (3) separate oxygen sensors. For monitoring of a single location, the Series
1300 supports either a “Local Sensor” (located within the main electronics enclosure) or a “Remote
Sensor” (located in a separate remote electronics enclosure). For monitoring of multiple locations, up
to two (2) “Remote Sensors” can be added to the “Local Sensor” for a total of three (3) monitoring
locations. The standard input power to the Series 1300 instrument is 88-264VAC, 47-63Hz (Hertz).
Available power options include 12VDC or 18-36VDC (24VDC) and must be specified at the time of
order placement.
The Series 1300 Oxygen Deficiency Monitor is housed in a NEMA 1 equivalent enclosure rated for
general purpose indoor use. Oxygen values for all sensors are displayed on a 4 line by 20 character
liquid crystal display (LCD) with a total height of 0.81" (20.8 mm). Various display modes are available
that allow for viewing all sensors simultaneously or having the sensor oxygen values cycle in a large
font display mode. The front panel includes a membrane panel with seven buttons that provide
access to the monitor's settings. The monitor is equipped with four alarm relays (see specifications)
which are user configurable and can be set for fail-safe operation. Also included, is a built-in audible
indication of an oxygen alarm condition.
The Series 1300 Oxygen Deficiency Monitor comes equipped with two direct current (DC) analog
outputs. The analog outputs can be independently configured for 0-20mA or 4-20mA. Both are
scalable over the operating range of the monitor. Using a terminating resistor on either of these
outputs will provide an analog voltage up to 5 volts full scale up to a maximum of 1,000 feet.
The Series 1300 Oxygen Deficiency Monitor comes equipped standard with a data-logger and a
serial interface commonly referred to as RS-232. The interface is compatible with EIA/TIA-232E.
Optional addresses from 1 to 32 may be assigned to each monitor for communicating with up to 32
instruments on the RS-2321 or RS-485 bus.
1
The built in standard RS-232 by definition does not allow for more than one instrument on the same physical wires. An
external RS-232 to RS-485 adapter or an “Ethernet Serial server” can be used to allow addressing multiple RS-232 units by
converting the RS-232 signals to an alternate bus.
Series 1300 Oxygen Deficiency Monitor PAGE 1
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
1.2.1 Features
Standard Features:
• Easy to use and configure.
• Capable of monitoring up to three oxygen
sensors simultaneously.
• Automatically senses and configures new
sensors.
• Multiple monitoring screens: detailed or
large font versions.
• Alarm status is clearly displayed on the
screen with pop-up for active alarms
• Scrolling collapsible menu system is easy
to navigate.
• Wide range of configurable settings.
• Any sensor can be assigned to any output.
Standard Features (continued):
• Any Alarm can be assigned to any sensor.
• Any Alarm can activate any combination
of relays, horns, and strobes.
• Isolated digital communications (RS-232
or RS485).
• Built-in data-logger.
Optional Features:
• Battery backup.
• Isolated process outputs.
• Extended memory Data-logger (capable
of almost 4x more logging capacity).
1.3 Mounting
Wall Mount (WMT) is the basic configuration for the Series 1300 Oxygen Deficiency Monitor. All
electrical connections are located on the bottom of the monitor. See APPENDIX A – Main Enclosure
Template on page 66 for detailed dimensional drawings.
1.4 Oxygen Sensor
The Series 1300 Oxygen Deficiency Monitor features an ambient temperature electrochemical sensor
with an Enhanced Electrolyte System (EES). The EES, significantly extends the useful life of the
oxygen sensor as well as providing exceptional measurement stability.
Figure 1 - Oxygen Sensor
PAGE 2 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
1.5 Description Of Optional Equipment
The Series 1300 Oxygen Deficiency Monitor incorporates a host of standard features. For certain
requirements, user's may desire to augment the capabilities of the monitor by ordering the monitor with one or
more available options described below.
1.5.1 Battery Backup P/N 13-BAT
The Battery Backup option provides backup power to the Series 1300 Oxygen Deficiency Monitor during a
temporary loss of main power. Please see section 8 Battery Backup for more information on this option.
1.5.2 RS-485 P/N 13-485
The factory installed RS-485 is an optional upgrade to the factory default of RS-232 and offers the ability to
extend the distance from 50 feet maximum up to 4,000 feet between the monitor and the host system. This
option also provides serial communications (both sending and receiving ) between several monitors up to a
maximum of 32 on one RS-485 three wire communications channel.
1.5.3 Replacement Oxygen Sensor P/N 13-SEN
This option consists of just the sensor (no enclosure or electronics). This option should be ordered in the event
that the sensor is damaged or needs replacement due to end of life.
1.5.4 Remote Mounted Sensor Enclosure P/N 13-RSEN
This option consists of a NEMA 1 (IP 30) remote sensor enclosure containing the oxygen sensor and
associated circuitry used to communicate with the read out electronics. The remote sensors may be added to
the Series 1300 Oxygen Deficiency Monitor in the field by the user. See section 3.3 Remote Oxygen Sensors.
1.5.5 Analog Output Isolation P/N 13-ISO
Installed at the factory, this option provides galvanic isolation of both analog outputs. This eliminates any
potential ground loops when connecting to earth grounded inputs or powering from DC where the power return
could create a ground loop with the output grounds or the input and output grounds are tied to chassis ground.
The isolation also allows for a higher maximum load resistance up to 1200 ohms (24V @ 20mA) as opposed to
the 12V maximum of 300 ohms (6V @ 20mA).
1.5.6 Calibration Fixture P/N 13-CFN
The optional calibration fixture is recommended for checking the calibration of the Series 1300 Oxygen
Deficiency Monitor. Ideally, the source of the calibration gas should be compressed air (clean, dry, and oil free).
Most industrial gas suppliers can provide the compressed air in small hand-held cylinders. The calibration
fixture is designed to easily install over the gas opening of the Series 1300 oxygen sensor making a tight seal.
The fixture is equipped with ¼ inch tube fittings to deliver the compressed air through a 1/4" OD plastic tube
(not supplied). The sample pressure to the fixture should never exceed 1.5 pounds per square inch (PSIG) at a
corresponding sample flow rate of between 0.2 to 1.0 standard cubic feet per hour (SCFH) or 0.1 to 0.5 liters
per minute (LPM).
1.5.7 12VDC Power P/N 13-12V
Allows for a user supplied regulated 12V as the main source of power to the instrument. Minimum power
requirement is 25.2 Watts.
1.5.8 24VDC Power (18 To 36V) P/N 13-24V
Allows for 18 to 36VDC (nominal 24VDC) as the main source of power to the instrument. Minimum power
requirement is 35 Watts.
1.5.9 Extended Logger P/N 13-LOG
Adds almost four times the logging capacity to the existing built in logger. This option is installed at
the factory. Consult factory.
Series 1300 Oxygen Deficiency Monitor PAGE 3
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
1.6 Standard Features
Analog Outputs: (2) DC mA (direct current milliampere) loop outputs.
User selectable for either 0 to 20mA or 4 to 20mA.
User configurable for any oxygen sensor.
Non-isolated Maximum load resistance: 300 ohms max @ 25C
Isolated Option Maximum load resistance: 1200 ohms max @ 25C
Alarm Relays: (4) SPDT (single pole-double throw) Form C contacts rated at:
10 A (250 VAC) / 5A (100 VDC).
Alarms are user configurable for automatic clearing or latching
(requires manual clearing at the instruments panel).
Alarms: (9) individually configurable alarms that can be setup to activate any
relay, any Horn/Strobe combination, and assignable to any sensor.
Each alarm can be configured as either a “high alarm” or a “low alarm”.
Input Power: Universal 90-264 VAC, 47-63 Hz.
12VDC optional and must specify at time of order.
24VDC (18-36VDC) optional and must specify at time of order.
RS
Communications:
Data Logger: 1 to 60 second interval time. Selectable sensors. 0-30% O2 logging.
Audible Alarms: Internal audible alarm rated at 85 decibels at 10 centimeters
Operating
Temperature:
RS-232 Communications standard. Compatible to EIA/TIA-232E. User
selectable baud from 2400 to 115.2k bps. Optional assignable address
from 1 to 32. Maximum of 50 feet from host system to monitor.
Included real time clock allows selectable time stamp.
Individually select which available sensors to log.
Output in easy to graph character separated values (CSV) for
importing into spreadsheets or data visualization programs.
See section Section 5 “Data Logger” for details.
50° to 104°F (10° to 40°C)
0 to 90% relative humidity (RH), non-condensing
1.7 Optional Features
The Series 1300 Oxygen Deficiency Monitor can be ordered with the following options:
Analog Outputs: Isolated, longer driving distance.
Input Power: 12V@25.2W or 24V nominal @35W (18 to 36V).
RS Communications: RS-485 add on to extend the distance from host to monitor from
50 feet to 4000 feet. Also allows for up to 32 monitors on one bus.
Data Logger: Factory installed extended memory for longer logging (almost 4x).
Audible Alarms: Up to 8 horn and strobes (factory ready).
PAGE 4 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
1.8 General Specifications
Measurement Range: Percent Oxygen: 0 to 30%.
Resolution: 0.1%
Sensor Type: Long-life electrochemical sensor (5 years typical).
Accuracy: ±1% of full scale.
Response Time: 90% of full scale in < 20 seconds.
Start Up Time:
(after initial installation)
Calibration Sample Flow Rate: 0.2 to 1.0 standard cubic feet per hour (SCFH)
Calibration: Ambient air or oil-free compressed air.
2
< 1 minute.
0.1 to 0.5 liters per minute (LPM)
Optimum flow using Alpha Omega Instruments
calibration fixture.
Enclosures:
Polycarbonate, equivalent to NEMA 1 (IP 30)
(Main & Remotes)
Main Enclosure Dimensions:
Nominal
10.94 Inches (277.8 mm) – height.
6.3 Inches (160 mm) – width.
3.6 inches (91 mm) – depth.
Remote Enclosure Dimensions:
Nominal
6.2 Inches (158 mm) – height.
5.83 Inches (148 mm) – width.
3.49 inches (89 mm) – depth.
With calibration fixture:
7.3 Inches (158 mm) – height
Sample Delivery: Open diffuser-no pump required.
Display: 4 Line by 20 character LCD.
Remote Sensor Max Distance: Over 1000 feet (305 meters) using 22 AWG wire.
Longer lengths available using larger diameter
wire.
2
General specifications are at standard temperature, pressure, and humidity. Unless specified otherwise.
Series 1300 Oxygen Deficiency Monitor PAGE 5
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
2 Installation
DANGER
POTENTIALLY HAZARDOUS AC VOLTAGES EXIST WITHIN THE INSTRUMENT. IF
NOT AVOIDED, THESE VOLTAGES COULD POTENTIALLY RESULT IN SERIOUS
INJURY OR DEATH. DISCONNECT ALL SOURCES OF POWER AND EXTERNAL
CONNECTIONS BEFORE REMOVING THE COVER TO THE MONITOR.
RISK OF SHOCK
TO AVOID THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THE
SERIES 1300 OXYGEN MONITOR TO RAIN, WATER SPRAY, OR ANY OTHER
LIQUIDS.
2.1 Unpacking The Instrument
Upon opening the shipping container, carefully unpack the instrument to check if the outer surfaces
have been damaged. If so, report the findings immediately to Alpha Omega Instruments who will, in
turn, provide further instructions.
If there is no apparent damage, check the contents to ensure all items were shipped. In some cases,
items may be back ordered.
NOTE: IF DAMAGE HAS BEEN FOUND, DO NOT PROCEED FURTHER, BUT INSTEAD, CONTACT THE
FACTORY.
All damage and shortage claims must be made known to Alpha Omega Instruments within 10 days
after receipt of shipment.
Carefully rotate the monitor and check to make sure no components have been loosened or
dislodged.
If there are any loose or dislodged components (rattling of any kind), contact the factory for further
instructions.
If there is no evidence of loose or dislodged components, the installation procedure can begin.
PAGE 6 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
2.2 Electrical Installation
WARNING
ELECTRICAL INSTALLATION SHOULD BE PERFORMED BY A QUALIFIED
PERSON AND SHOULD COMPLY WITH APPLICABLE FEDERAL, STATE, OR
LOCAL ELECTRICAL SAFETY CODES.
The standard Series 1300 Oxygen Deficiency Monitor accepts a universal AC power input of 90-264
VAC, 47-63 Hz. In this configuration, the unit is shipped with a standard North American power cord
NEMA style 5-15P. The power cord is wired to an AC terminal block labeled “TB1” within the
enclosure. If the installation requires hard wiring, simply replace the power cord with the appropriately
rated wire. Use of #18 AWG is recommended. See section Wiring on page 10.
For DC operation the terminal block labeled “TB1” will still be used, however the labeling will indicate
the configured power.
2.3 Mechanical Configuration
The Series 1300 Oxygen Deficiency Monitor can be configured as a single stand alone enclosure with
a single (local) sensor located within the main enclosure. The sensor is mounted at the bottom of the
main enclosure and is exposed to the surrounding atmosphere the monitor has been installed in.
The Series 1300 Oxygen Deficiency Monitor can also be configured with a Remote Oxygen Sensor
that is housed in it's own separate smaller enclosure. The Series 1300 Oxygen Deficiency Monitor
can accept a maximum of two remote oxygen sensors that can be placed at different locations away
from the main electronics.
The Series 1300 Oxygen Deficiency Monitor main enclosure is fabricated from a polycarbonate
enclosure with a cover that is secured by six (6) screws. Access to the wiring and membrane switch
control panel is available by removing the cover using a standard Philips type screw driver with a #2
style point. Please exercise caution when removing the cover as it is not hinged.
Mounting holes are also accessed by removing the cover. See the following pages for more
information and also APPENDIX A – Main Enclosure Template on page 66 and APPENDIX B –
Remote Enclosure Template on page 67 for mounting templates.
Series 1300 Oxygen Deficiency Monitor PAGE 7
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
2.3.1 Main Enclosure
Figure 2 - Main Enclosure
PAGE 8 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
See section 3 “Wiring“ on page 10 for wiring details.
WARNING
THE SERIES 1300 OXYGEN DEFICIENCY MONITOR AND THE REMOTE OXYGEN
SENSOR ENCLOSURES SHOULD BE KEPT IN THEIR DESIGNED WALL
MOUNTED ORIENTATION WITH THE SENSOR FACING DOWNWARDS.
2.3.2 Remote Oxygen Sensor Enclosure
The Remote Oxygen Sensor enclosure is configured similarly in a polycarbonate enclosure with a
cover secured by four (4) screws. Remove the cover of the Remote Oxygen Sensor enclosure to gain
access to both the printed circuit board connections and the mounting holes. See APPENDIX B –
Remote Enclosure Template on page 67 for a mounting template.
Wiring will be through the strain relief located on the right side of the remote enclosure. See section
3.3 “Remote Oxygen Sensors” on page 14 for details.
Figure 3 - Remote Oxygen Sensor Enclosure
CAUTION
DO NOT OPERATE THE SERIES 1300 OXYGEN DEFICIENCY MONITOR OR THE
REMOTE OXYGEN SENSORS IN ANY POSITION OTHER THAN WITH THE
SENSOR MOUNTED DOWNWARD AS SHOWN. A DIFFERENT ORIENTATION MAY
ADVERSELY AFFECT THE OXYGEN VALUES.
Series 1300 Oxygen Deficiency Monitor PAGE 9
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
3 Wiring
The Series 1300 Oxygen Deficiency Monitor main enclosure is designed to accept a number of inputs
and outputs. Please reference Figure 4 below to wire to the following hardware. Note: Following this
page are detailed instruction for each of the following items:
Oxygen Sensor A single “Local Oxygen Sensor” mounted at the bottom center of the enclosure. This is a
two (2) wire interface located on the left side, inside the main enclosure.
Power AC or DC power via terminal block (TB1). Labeled at the factory. Figure 4 - Bottom View 1
of Series 1300 below Shows the AC version labeled “L”, “N”, and “G” for Line, Neutral, and
Ground respectively. For DC operation these will be “+”, “-”, and “G” respectively.
Remote Sensors One (1) or Two (2) Remote Oxygen Sensors via terminal block TB1, terminals 1 thru 6. See section 3.3
Horn and Strobes Up to eight (8) horn and strobes (where four can be powered directly without external
power supplies) via terminal block TB1, terminals 7 thru 11.
Analog Outputs Removable printed circuit board (PCB) terminal block TB2 See section 3.5
Alarm Relays Removable printed circuit board (PCB) terminal blocks TB3 & TB4 See section 3.6
Digital Communications (RS-232 or RS-485) via terminal block TB1, terminals labeled “T”, “R”, and “G”. See section 3.7
See section 3.1
See section 3.2
See section 3.4
Figure 4 below shows a cut-away view of the internal terminal block TB1.
Figure 4 - Bottom View 1 Of Series 1300
PAGE 10 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
Figure 5 below shows a cut-away line drawing showing the PCB terminal blocks TB2, TB3, and TB4.
Figure 5 - Bottom View 2 Of Series 1300
3.1 Local Oxygen Sensor
If ordered with a Local Oxygen Sensor, the Series 1300 Oxygen Deficiency Monitor will have a large
gland that is centrally located on the bottom of the enclosure as shown above. This hole will be
plugged when the Series 1300 Oxygen Deficiency Monitor is ordered without a Local Oxygen Sensor.
Figure 6 - Oxygen Sensor
Series 1300 Oxygen Deficiency Monitor PAGE 11
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
3.1.1 Local Oxygen Sensor Installation
To install the replaceable local sensor, simply open the front cover and slide the sensor down into the
large gland designed to hold the sensor. Gently tighten the nut while holding the sensor in place from
the top and the bottom at the same time as shown.
Figure 7 - Local Oxygen Sensor Installation
PAGE 12 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
The sensors wired connector should then be pressed together with the mating connector already
supplied inside the main enclosure down at the bottom on the left. The mating connector is in the
form of a cable with a two pin male connection as shown below before and after connection:
Before After
Figure 8 - Local Oxygen Sensor Installation & Wiring
3.2 Power (TB1)
Power the Series 1300 Oxygen Deficiency Monitor by wiring to terminal block TB1. Please Note that
the terminal blocks are color coded. The two primary power connectors are blue and the ground
returns are a yellow/green color.
Universal AC
90-264 VAC, 47-63 Hz.
TB1
LabelACSignal
L Line + Positive (12V) Positive (24V)
N Neutral - Negative (12V Return) Negative (24V Return)
G Ground G Chassis Ground Chassis Ground
TB1
Label
12V
Signal
Table 1 - Power Connections (Terminal Block 1)
DC
24V (18 to 36V)
Signal
Series 1300 Oxygen Deficiency Monitor PAGE 13
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
3.3 Remote Oxygen Sensors
The interface to the “Remote Oxygen Sensor”s are located at terminal block TB1 (Refer to Figure 4)
inside the main enclosure. The Remote Oxygen Sensors are connected using a twisted shielded pair
of wires. The connections within the main electronics enclosure are located on a terminal block
located in the bottom of the enclosure labeled “TB1”. See Table 2 below for reference. Terminals 1-6
are used to connect to the Remote Oxygen Sensors as shown in the table below. These connections
are terminated at the Remote Oxygen Sensor enclosure by means of another terminal block (also
labeled TB1) located within the remote electronics enclosure. See Figure 10 - Remote Oxygen
Sensor Enclosure & PCB.
Connects
from:
Main
Electronics
TB1
Label Signal
1 Shield
2 Positive 2 Positive, source of current loop
3 Return 3 Return, Negative return of current loop
4 Shield
5 Positive 2 Positive, source of current loop
6 Return 3 Return, Negative return of current loop
Connects
to:
Remote
Oxygen
Sensor 1
Remote
Oxygen
Sensor 2
TB1
Label Detail
1 Shield
1 Shield
Table 2 - Remote Oxygen Sensor Connections (Terminal Block 1)
Figure 9 - Remote Oxygen Sensor Enclosure
Inside the Remote Oxygen Sensor enclosure is a PCB as shown in Figure 10 below.
PAGE 14 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
3
TB1
2
1
Figure 10 - Remote Oxygen Sensor Enclosure & PCB Figure 11 - Remote Oxygen Sensor
The sensor is connected to P1 with the red wire towards the edge of the PCB. The connector is a two
(2) pin Molex style. Note that only the “+” and “-” pins are used.
3.3.1 Remote Oxygen Sensor Installation Procedure
Follow the procedure below for connecting the first Remote Oxygen Sensor.
CAUTION
REMOVE ANY POWER FROM THE INSTRUMENT BEFORE PERFORMING ANY
WIRING ON THE MAIN INSTRUMENT OR THE REMOTE OXYGEN SENSOR.
NOTE: For best results it is recommended to use a twisted shielded pair to connect to the Remote
Oxygen Sensors. Using #22 AWG (American Wiring Gauge) will allow distances up to 1000'. Longer
lengths available with larger diameter wire (consult factory). In most cases the proper cable is
specified at time of order and will be supplied by the factory.
Connecting Remote Oxygen Sensor #1 (refer to Table 2 - Remote Oxygen Sensor Connections
(Terminal Block 1) on page 14 above):
1. Connect the SHIELD wire of the twisted pair shielded cable to TB1, terminal 1 of the main
electronics. This wire should terminate at terminal block TB1, terminal 1 inside the Remote Oxygen
Sensor. Make sure all wires are put through the strain relief first.
2. Connect the POSITIVE wire of the twisted pair shielded cable to TB1, terminal 2 of the main
electronics. This wire should terminate at terminal block TB1, terminal 2 inside the Remote Oxygen
Sensor.
3. Connect the RETURN wire of the twisted pair shielded cable to TB1, terminal 3 of the main
electronics. This wire should terminate at terminal block TB1, terminal 3 inside the Remote Oxygen
Sensor.
Series 1300 Oxygen Deficiency Monitor PAGE 15
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Repeat the above procedure to connect the second Remote Oxygen Sensor if applicable but
substitute the terminals as follows:
1. Connect the SHIELD (TB1, terminal 4) of the main electronics to TB1, terminal 1 inside the 2
Remote Oxygen Sensor.
2. Connect the POSITIVE (TB1, terminal 5) of the main electronics to TB1, terminal 2 inside the 2
Remote Oxygen Sensor
3. Connect THE RETURN (TB1, terminal 6) of the main electronics to TB1, terminal 3 inside the 2
Remote Oxygen Sensor
nd
nd
nd
After connection to the Remote Oxygen Sensor(s) has been completed, power the instrument and
wait for it to initialize. The display should now show each sensor being initialized. Please reference
section 6 “Sensor Setup” on page 47 for more information on setting up the sensor(s).
NOTE: Remote Oxygen Sensors do not need to be connected to the unit sequentially. They will be
detected based on the terminals they are connected to.
3.4 Horn And Strobe
The interface to the Horn and Strobes is located at terminal block TB1 (Refer to Figure 4) inside the
main enclosure. The Series 1300 Oxygen Deficiency Monitor is capable of supporting up to 8 horn and
strobes. The horn and strobes use a 3 wire connection3 consisting of power, ground return, and data.
The connections within the main electronics enclosure are located on a terminal block located in the
bottom of the enclosure labeled “TB1”. See Table 3 below for reference.
Main Enclosure Horn and Strobe PCB
Terminal
Block
TB 1 Signal Name on PCB Detail
7 Shield
8 Shield “SH” Shield
9 Positive “V+” Positive Power (typically 12V)
10 Data “DAT” Data communications line
11 Return “GND” Power Return
Table 3 - Horn And Strobe Connections (Terminal Block 1)
Follow the procedure below for connecting a horn and strobe that will be powered from the Series
1300 Oxygen Deficiency Monitor.
1. Connect the 1st wire of the shielded cable to TB1 terminal 9 (POSITIVE), inside the main enclosure.
Terminate this wire to one of the terminals on the horn and strobe PCB labeled “V+”.
2. Likewise connect the 2nd wire of the shielded cable to TB1 terminal 10 (DATA). Terminate this wire
to one of the terminals on the horn and strobe PCB labeled “DAT”.
3. Connect the 3rd wire of the shielded cable to TB1 terminal 11 (RETURN). Terminate this wire to one
of the terminals on the horn and strobe PCB labeled “GND“.
4. Connect the shield of the shielded cable to TB1 terminal 8 (SHIELD). Terminate this shield to one of
the terminals on the horn and strobe PCB labeled “SH”.
Note: it is only necessary to connect the shield at the horn and strobe PCB when daisy-chaining4. In a
star-point configuration, simply leave it disconnected.
3
Horn and Strobes can be wired directly to the relay contacts using only two (2) wires. The Series 1300 Oxygen Deficiency
Monitor will not be able to warn the user of any disconnect or wiring problem without the use of the “DAT” line.
PAGE 16 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
Follow the same procedure to connect multiple horn and strobe units to the Series 1300. The main
enclosure and the horn and strobe unit both have multiple terminals that can accept more than a
single wire twisted together if necessary. If daisy-chaining, then simply connect to the second set of
terminals supplied on the horn and strobe unit.
When powered from 90-264 VAC, 47-63 Hz., the instruments default DC output power is capable of
driving up to 4 horn and strobes simultaneously. If more than 4 are required, the additional horn and
strobes need to be powered from either an independent DC power source or an upgraded power
supply that can handle the extra horn and strobes. The maximum length of cable for a single horn
and strobe wired with the recommended #18 AWG wire can be up to 1,000 feet away from the main
electronics. However, each additional horn and strobe wired in SERIES (daisy-chained) on the SAME
wire will reduce the maximum length by approximately half. The maximum voltage drop in any single
chain of wire must be less than or equal to 3V. There must be a minimum of 9V at the end of the wire.
CAUTION
THE MAX CABLE CAPACITANCE OF 0.15UF MUST BE ADHERED TO OR THE
HORN AND STROBES MAY NOT WORK CORRECTLY AND/OR CAUSE
UNWANTED BEHAVIOR. PLEASE CONTACT THE FACTORY FOR ANY
APPLICATIONS REQUIRING LONGER LENGTHS.
Figure 12 below shows a horn and strobe and the associated printed circuit board (PCB).
Figure 12 - Horn And Strobe With PCB
3.4.1 Horn And Strobe PCB
The printed circuit board has 8 terminals located on the front edge as shown in Figure 13 - Horn and
Strobe PCB on page 17. The signals are labeled on the board as “DAT” for data, “V+” for positive
power, “GND” for power return, and “SH” for shield. Each signal has two connections to allow daisychaining. If daisy-chaining multiple horn and strobes, the connectors are sized to allow for twisting
two wires together before inserting into the screw terminal.
Figure 13 - Horn And Strobe PCB
4
Daisy-chaining is when another Horn and Strobe is connected to the first in series. As opposed to being connected to the
main enclosure in parallel (or star-point).
Series 1300 Oxygen Deficiency Monitor PAGE 17
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Series 1300
Optionally wire
up to (4) more.
This requires
external Power
or a higher
rated internal
power supply.
CAUTION
J1 TO J4 SUPPORT A MAXIMUM OF FOUR (4) HORN AND STROBES UNLESS
USING A SPECIAL HIGH POWERED MAIN POWER SUPPLY. NEVER CONNECT
AN EXTERNAL POWER SUPPLY TO THE “V+” TERMINALS.
Note, that if powering the instrument from an external power supply, it is imperative that the power
supplied be sufficient for the number of horn and strobes connected at any given time. (5) or more
horn and strobes will require remote power or a higher wattage upgrade to the internal power supply.
The additional external power needed to handle up to four (4) standard horn and strobes is
approximately 20W. Therefore, using a 45W, 12V power supply would be able to power the Series
1300 Oxygen Deficiency Monitor as well as all eight (8) horn and strobes.
When externally powered, connect only the “DAT” and “GND” terminals back to the main electronics
enclosure. The “V+” terminal can be omitted in this case as it is not powered from the main
electronics. The external power supply connects to “EXT PWR” terminal located on the right hand
side labeled “J5”.
CAUTION
REMOVE POWER BEFORE PERFORMING ANY WIRING ON THE INSTRUMENT
OR HORN AND STROBE(S). IF EQUIPPED WITH BATTERY BACKUP, INSURE THE
BATTERY TERMINAL INSIDE THE MAIN ENCLOSURE IS DISCONNECTED.
3.4.2 Horn And Strobe Daisy Chain Configuration
This configuration shows how the wiring can be configured in a serial fashion or “daisy chain”. The
source wiring comes in on one set of connectors and the next horn and strobe is wired to the other
set of connectors as shown below.
Figure 14 - Wiring Horn And Strobes In Series (Daisy Chained)
As shown above, using four (4) horn and strobes and #18 AWG cable wire, the maximum distance to the last
horn and strobe in the chain is 250 feet.
PAGE 18 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
Series 1300
Series 1300
12V
3.4.3 Horn And Strobe Star Configuration
Shown below is a Series 1300 Oxygen Deficiency Monitor wired to four (4) horn and strobes.
Figure 15 - Wiring Horn And Strobes Individually
As shown above, using four (4) horn and strobes and #18 AWG cable wire, the maximum distance fore each
single horn and strobe is 1,000 feet.
3.4.4 Horn And Strobe External Power
Adding more than four (4) horn and strobes with the standard power supply requires external power.
Shown below is the wiring for externally powered horn and strobes. Note the added 12V power
supply that is connected to a separate connector.
CAUTION
DO NOT CONNECT EXTERNAL POWER TO THE V+ TERMINAL. EXTERNAL
POWER SHOULD ONLY BE APPLIED TO THE “EXT PWR” CONNECTOR
LABELED “J5”
Figure 16 - Externally Powered Horn And Strobes
Wiring of the V+ is optional and shown as a dashed line in the picture.
Series 1300 Oxygen Deficiency Monitor PAGE 19
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Horn Strobe
12V
Customer
Supplied
Series
1300
ENABLE
1
2
3
4
3.4.5 Horn And Strobe Relay Wiring
The horn and strobe can be wired through any alarm relay as shown. The Horn and Strobe can be
individually enabled by adding a jumper plug where shown labeled “HN” for Horn and “SB” for Strobe.
Placing a jumper on the ENABLE pin(s) – labeled “EN” – will activate that particular output as soon as
power is applied.
NOTE
IT IS NOT NECESSARY TO CONNECT ANY OTHER WIRES IN THE TWO WIRE
RELAY ACTIVATED MODE AS SHOWN BELOW IN FIGURE 17 - WIRING HORN
AND STROBES USING A RELAY.
Figure 17 - Wiring Horn And Strobes Using A Relay
CAUTION
THE SERIES 1300 TWO WIRE CONFIGURATION SHOWN ABOVE DOES NOT
ALLOW FOR THE INSTRUMENT TO ALERT THE USER OF ANY WARNINGS
ASSOCIATED WITH HORN AND STROBES.
3.4.6 Horn And Strobe Switch Settings
SW1 Switch Bank
Each horn and strobe requires a unique address and this address is configured using a DIP style
Figure 18 - SW1 Detail On Horn And Strobe PCB
switch bank labeled “SW1” located on the printed circuit board mounted within the horn and strobe
enclosure. To turn an individual switch “ON”, simply move the switch position away from the text label
“SW1” and towards the text label “ON”. See FIGURE X below and Table 4 below for details on setting
the correct address.
SW1.4 Not Used
SW1.3 Bit 2
SW1.2 Bit 1
SW1.1 Bit 0
PAGE 20 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
SW1 – Horn and Strobe PCB (11751)
SW1.1 SW1.2 SW1.3 Address/Number
OFF OFF OFF 1
ON OFF OFF 2
OFF ON OFF 3
ON ON OFF 4
OFF OFF ON 5
ON OFF ON 6
OFF ON ON 7
ON ON ON 8
Table 4 - Horn And Strobe PCB Switch Settings
CAUTION
EACH HORN AND STROBE UNIT MUST BE SET FOR A DIFFERENT ADDRESS
BEFORE CONNECTING IT TO THE MAIN ENCLOSURE OR AN ERROR WILL
OCCUR AND POSSIBLY SET OFF UNWANTED ALARMS!
All horn and strobes are detected based on the address assigned by the switch settings on each horn
and strobe PCB. Table 4 above shows all the possible configurations and the corresponding
addresses.
After installation of the horn and strobe(s) has been completed, power the instrument and follow the
on screen instructions for enabling the horn and strobes. The system will keep displaying alert
messages until either the horn and strobe is enabled or it's removed. Once all horn and strobes are
enabled, consider setting up the horn and strobe activations under the “Main Menu“. See page 37
under “Activating Alarm Relays and Horn and Strobes“.
3.4.7 Horn And Strobe Maximum Distance
Each single horn and strobe can be up to 1,000 feet away from the main electronics. Any additional
horn and strobe on the same cable reduces the maximum length as shown below.
# of horn and
strobes on a
Configuration
5
Star
single cable
1 450 feet 1000 feet 1800 feet
Daisy Chain 2 200 feet 550 feet 900 feet
Daisy Chain 3 150 feet 350 feet 600 feet
Daisy Chain 4 100 feet 250 feet 450 feet
Note: combinations of the above are acceptable. Example, using #18 AWG cable wire, three (3) horn and
strobes at 350 feet max and one (1) horn and strobe at 1,000 feet will work. The appropriate wire is typically
supplied by the factory based on the customer's application. Using smaller wire diameters will significantly
reduce the wiring lengths. Example, #22 AWG with 4x Horn and Strobes is 100 feet Max.
Cable Wire
Gauge #22
Cable Wire
Gauge #18
Cable Wire
Gauge #16
5
Four (4) separate horn and strobes can be wired at 1000 feet each as long as they are wired in a “Star” configuration where
each cable is connected to a single horn and strobe and is terminated at the main enclosure.
Series 1300 Oxygen Deficiency Monitor PAGE 21
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
3.5 Analog Outputs
Access to the Series 1300 Oxygen Deficiency Monitor's analog outputs and alarm relays is
accomplished through the user interface connectors within the main electronics enclosure. These
connectors are shown in the graphic in Figure 4 on page 10 and are labeled “TB2”, “TB3”, and “TB4”.
Table 5 shows the pin outs and the connections associated with these signals. located on the printed
circuit board.
Terminal
Block Pin Signal Description
TB2
1
Analog
2 Positive
Output 1
3 Shield
4
Analog
5 Positive
Output 2
6 Shield
Return
Return
Table 5 - Analog Output Connections
3.6 Alarm Relays
The Series 1300 Oxygen Deficiency Monitor is equipped with four (4) single pole double throw
(SPDT) relays. To configure the alarm relays, please refer to section 4.4 Alarm System on page 29.
Access to the Series 1300 Oxygen Deficiency Monitor's alarm relays is accomplished through the
user interface connectors within the main electronics enclosure. These connectors are shown in the
graphic in Figure 4 and are labeled “TB2”, “TB3”, and “TB4”. Table 6 below shows the pin outs and
the connections associated with the relays.
Terminal
Block Pin Signal Description
TB3
TB4
1
Relay 1
2 Common Contact
3 Normally Open Contact
4
Relay 2
5 Common Contact
6 Normally Open Contact
1
Relay 3
2 Common Contact
3 Normally Open Contact
4
Relay 4
5 Common Contact
6 Normally Open Contact
Normally Closed Contact
Normally Closed Contact
Normally Closed Contact
Normally Closed Contact
Table 6 - Relay Connections
PAGE 22 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
3.6.1 Fail Safe
Fail safe is individually selected for each of the (4) relays. When enabled (“ON”), the relay will be
energized when there is no active alarm associated with the relay. The factory default for fail safe is
“OFF”.
Contacts shorted
for each Active
Alarm Relay
Relay 1
Relay 2
Relay 3
Relay 4
Alarm ON
Fail-safe ON
NC (TB3-1) to COM
(TB3-2)
NC (TB3-4) to COM
(TB3-5)
NC (TB4-1) to COM
(TB4-2)
NC (TB4-4) to COM
(TB4-5)
Fail-safe OFF
(shipped from factory)
NO (TB3-3) to COM
(TB3-2)
NO (TB3-6) to COM
(TB3-5)
NO (TB4-3) to COM
(TB4-2)
NO (TB4-6) to COM
(TB4-5)
Table 7 - Fail Safe Logic
Table 7 illustrates the various wiring configurations for the four alarm relays in the Series 1300
Oxygen Deficiency Monitor based on whether the alarm relays are going to be configured for fail-safe
or non fail-safe operation. Please refer to Relay Fail-safe Operation on page 32.
3.7 RS-232/485 Communications
RS Communications is a three (3) wire interface for both RS-232 and RS-485. Refer to the table
below for wiring.
Terminal
Block
TB 1 Label
T TxD / + RxD / +
R RxD / - TxD / -
G Isolated Ground
Signal
RS-232 / 485
Connects to:
RS-232 / 485
Table 8 - RS232/485 Communications Wiring
Note: If you have an RS485 output and have trouble communicating, try swapping over the input and
output lines. Some are called T+ / T- or maybe A / B. Whatever the case, the communications link will
not work unless these are correct. The COM (or ground) pin MUST be connected to insure proper
communications.
Series 1300 Oxygen Deficiency Monitor PAGE 23
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
4 Operation
The Series 1300 Oxygen Deficiency Monitor is ready to be used out of the shipping container. Simply
verify that the proper power is available and wire accordingly (See section 3 Wiring on page 10). The
monitor has been calibrated at the factory and re-calibration is not required at initial start up. When
powering the instrument for the first time, any sensors will be automatically detected and initialized.
This initial detection and initialization will take approximately 30 minutes. This is a one-time
initialization.
4.1 Power ON
The Series 1300 Oxygen Deficiency Monitor has non-volatile flash memory so that all the values set
by the user via the front panel will be maintained. Upon powering the Series 1300 Oxygen Deficiency
Monitor, the monitor will show “BOOTING” on the screen for approximately fifteen (15) seconds then
immediately start to display the oxygen level detected by all attached sensors. This assumes the
instrument has been initialized. When using the data logger, the instrument may pause with a
message “Logger updating” which indicates a power outage while logging. The logger will recover
automatically. The longer the power was interrupted the longer the initialization will be. The first
screen that displays the oxygen values is called the “Home” screen. See sections 4.3.1.1 and 4.3.1.2
starting on page 25.
4.2 Panel Description
The front panel of the Series 1300 Oxygen Deficiency Monitor contains a 4 Line liquid crystal display
(LCD) and seven (7) membrane panel buttons, “STATUS”, “ESCAPE”, UP, DOWN, LEFT, RIGHT,
and “ENTER”. There is an audible indicator located inside one of the strain reliefs on the bottom of
the monitor. The 4 Line LCD display shows the concentration of oxygen in the environment being
measured in terms of percent oxygen and also displays messages or alerts from the microprocessor.
4.3 Navigating The Screens
The Series 1300 Oxygen Deficiency Monitor has many distinct display screens.
1. The "Home" screen displays the sensor values. This is the DEFAULT screen and all other screens
will time-out after being idle for approximately 2 minutes and display the Home screen.
2. The “Alert” screen displays sensor and monitor status information.
3. The “Active Alarms” screen displays a summary of active alarms and the current oxygen values of
sensors currently in alarm condition.
4. The “Alarm Status” screen displays the detailed status of each of the (9) available alarms.
5. The “Main Menu” screen displays user adjustable parameters in an easy to use scrollable menu
system.
6. The optional “Battery Status” screen. This screen will only be available when the “Battery Backup”
option is ordered.
4.3.1 Home Screen
The "Home" screen is the primary DEFAULT display and shows the output in percent oxygen of each
enabled sensor that is connected to the Series 1300 Oxygen Deficiency Monitor. The user can select
different display options on this screen using the UP and DOWN buttons. These different display
options will show the same information but do so in different ways. For example, one mode shows a
larger font size for easier viewing from a distance that will alternate between active sensors. Another
PAGE 24 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
includes 1 to 3 sensors, each on a separate line. Pressing ESCAPE multiple times will quickly revert
to the “Home” screen and cancel any other screen or parameter editing.
4.3.1.1 Three Line "Home" Screen
The three line version will display each sensor on a line by itself as shown below. Note: positions are
fixed.
20.9 % Sensor 1
20.9 % Sensor 2
20.9 % Sensor 3
Press UP or DOWN to cycle
through “Home” screens.
Figure 19 - Three Line Home Screen
4.3.1.2 Large Font Home Screen
The large format version will cycle through any valid sensors and display the sensors name in the last
line on the bottom of the screen.
Press UP or DOWN to cycle
through “Home” screens.
Figure 20 - Large Font Home Screen
The sensor names will be displayed on the LCD justified based on how many sensors are installed.
For instance, if two sensors are installed, one will be left justified and the other right justified. When
three sensors are installed, then one will be left justified, the second will be centered, and the third will
be right justified. This allows for easier identification from a distance. The logical order of the sensors
is Remote 1, Remote 2, and Local. Therefore if Remote 1 and Local sensors are installed, these
become sensor 1 and sensor 2 logically and appear on the screen as described above.
4.3.2 Alert Screen
The “Alert” screen automatically displays information related to the following items (prioritized):
Priority Alert Type Detail Notes
1 Sensor status Sensor very low or removed
2 Bus, horn and strobe status Hardware malfunction
3 Bus, horn and strobe status Horn and Strobe removed
4 Bus, horn and strobe status Disabled/Detected horn and strobe
5 Bus, horn and strobe status Address changed
6 Sensor status Oxygen sensor needs replacing
7 Bus, horn and strobe status: Newly added horn and strobe
8 Battery status Battery missing
9 Battery status Low Battery (below 9.5V)
10 Power status No main power
When the “Alert” screen appears, the instrument will sound a short chirp from the audible alarm to
indicate a message has been displayed. Use the LEFT and RIGHT buttons to navigate between the
“Home” and “Alert” screens. ESCAPE also reverts to the “Home” screen.
*
When equipped at the
factory with optional
battery backup.
Series 1300 Oxygen Deficiency Monitor PAGE 25
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
As shown below in Figure 21, the screen will display either “A T T E N T I O N!” when a message is
displayed, or “N O A L E R T S” when the system status is normal. Table 9 - Alert Screens shows
each Alert screen with a simulated output.
N 0 A L E R T S A T T E N T I O N!
Message Here
Figure 21 - Main Alert Screens
4.3.2.1 Navigating The Alert Screens
Generally the “Alert” screen accepts the ENTER button to “fix” the alert or the ESCAPE button to
ignore it temporarily. The message will differ slightly based on the alert displayed. Some alerts are
simply notifications such as a wiring problem. Others require the user to “fix” the alert by pressing the
ENTER button which will jump to the correct place in the menu to handle the message. The following
section describes these situations.
PAGE 26 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
A T T E N T I O N!
!!Sensor 1 WARNING!!
HIGH RISK! CHECK GAS
1st, THEN SENSOR!!
1) Oxygen Reading Very Low Or
Sensor Removed
A T T E N T I O N!
Hrn/Stb1 REMOVED?!
Press Enter to edit
Esc ignores for now
3) Horn And Strobe Removed
A T T E N T I O N!
H&S ADDRESS CHG!
WARNING! ADDRESS
CHANGE DETECTED!
5) Horn And Strobe Address
Changed
A T T E N T I O N!
Check wiring...
DATA stuck HIGH!!!
2) Horn And Strobe Hardware
Malfunction
A T T E N T I O N!
Hrn/Stb1 DETECTED!
Press Enter to edit
Esc ignores for now
4) Horn And Strobe Detected
A T T E N T I O N!
REPLACE Sensor 1
Press Enter to edit
Esc ignores for now
6) Sensor Needs Replacing
A T T E N T I O N!
REPLACE Sensors 1&3
Press Enter to edit
Esc ignores for now
6) This Shows Multiple Sensors
Needing Replacement:
A T T E N T I O N!
Check Battery!
Enter for info
Esc ignores for now
9) No Battery*
Table 9 - Alert Screens
*Shown Only With Factory Installed Battery Backup Option
A T T E N T I O N!
LOW BATTERY!
Enter for info
Esc ignores for now
8) Low Battery*
A T T E N T I O N!
MAIN POWER LOST!
Enter for info
Esc ignores for now
10) No Main Power*
Series 1300 Oxygen Deficiency Monitor PAGE 27
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
4.3.3 Active Alarms Screen
The following screens show an example of an “Active Alarms” screen. The “Active Alarms” screen
displays alarm information for sensors that are in active alarm. The screen alternates between an
alert screen displaying the word “ALARM” and the screen displaying the summary information about
the active alarms. The alarm shown below is a “Local” sensor alarm at 20.0% oxygen:
Figure 22 - Active Alarms Screen
On the left, up to (3) sensors can be displayed at once. An arrow to the right of the active sensor will
point to the oxygen value that is associated with this sensor. Each time the display is updated it will
cycle to the next sensor that has an active alarm. In the example shown, the arrow is next to the
“Local” sensor name and it is reading “20.0”% oxygen. The screen will also display all of the active
alarm numbers on the last line. This is a quick view of all the active alarms. In this example, there is a
single alarm shown as “1” just after the text “Active Alm#”. Pressing the ESCAPE button will return to
the “Home” screen. Pressing any other button while on this screen will show the “Alarm Status”
screen.
Note: when navigating the “Main Menu”, the “Active Alarms” screen is slightly modified to allow the
user to see the oxygen concentration of (1) to (3) sensors simultaneously as shown below:
20.9 % Sensor 1
20.9 % Sensor 2
20.9 % Sensor 3
Figure 23 - Modified Active Alarms Screen
4.3.4 Alarm Status Screen
The “Alarm Status” screen displays the status of each alarm. The “Alarm Status” screen is accessed
by pressing the STATUS button while viewing the “Home” screen or by pressing any button except
the ESCAPE button while viewing the “Active Alarms” screen.
ALARM 1 (ACTIVE)
Active if Local
greater than:
20.0% Non-Latching
Figure 24 - Alarm Status Screens
Each status screen will display only the information relevant to that particular alarm. Pressing the
ESCAPE button while viewing the “Alarm Status” screen will exit the "Alarm Status" screen and return
to the "Home" screen. Pressing the ESCAPE button during an alarm condition will return to the
“Home” screen for approximately two (2) minutes. Pressing the ENTER button while in the “Alarm
Status” screen will display the alarm settings within the “Main Menu”, allowing the user to change the
alarm parameters. Use the UP and DOWN buttons to select from any of the (9) alarms to view.
ALARM 3 (Inactive)
No Sensor Configured
Press Enter to
configure this alarm
PAGE 28 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
4.3.5 Main Menu Screen
The “Main Menu” screen displays all of the user adjustable parameters available on the instrument.
The menu system is comprised of a simple scrolling menu that shows the individual items that can be
set or viewed by the user. Pressing the UP or DOWN buttons, the user can scroll up or down until
eventually the menu will return to the top. The Main Menu has a tree structure where items are
contained in sub-menus that can be expanded or collapsed to improve navigation (see Navigating the
Menu on page 36).
Note: when exiting the menu by pressing the ESCAPE button, the position
in the menu is retained the next time the menu is displayed. Pressing
ENTER from the “HOME” screen will return to the same place in the menu
that was previously being viewed. Pressing the RIGHT button will open a
sub-menu and pressing the LEFT button will close the sub-menu.
M A I N M E N U
>Passcode #1 1300 <
+CALIBRATE
+SENSOR SETUP
Figure 25 - Main Menu Screen
NOTE
IF THE PASSCODE IS SET TO ANYTHING OTHER THAN “1300” THE MAIN MENU
ITEMS WILL BE HIDDEN. TO ACCESS THE HIDDEN MENU SIMPLY SET THE
PASSCODE BACK TO “1300”.
To enter the “Main Menu”, while on the "Home" screen, press the ENTER button. Use the UP and
DOWN buttons to navigate the “Main Menu“. Using the LEFT, RIGHT, or ENTER buttons will expand
and collapse the “Main Menu”'s main headings, allowing for quicker navigation of the menu. To
change a parameter in the menu, first navigate to the parameter and then press the ENTER button to
enter into edit mode for that parameter. The cursor will blink while in edit mode. While in edit mode,
press the UP, DOWN, LEFT, and RIGHT buttons to change the parameter. When finished, press the
ENTER button then press ENTER again to confirm or press the ESCAPE button to cancel and revert
to the previous setting. To exit the menu press the ESCAPE button while not in edit mode. (NOTE: If
an alarm is active while viewing the “Main Menu” screen, the screen will flash a message indicating
an alarm condition).
4.4 Alarm System
The Series 1300 Oxygen Deficiency Monitor is equipped with up to nine (9) highly programmable
user friendly alarms. When an alarm event takes place (is active), several indications are provided by
the Series 1300 Oxygen Deficiency Monitor:
1. The front panel LCD will display the “Active Alarms” screen.
2. A continuous audible alarm will sound for any activated alarm.
3. The relay(s) associated with the activated alarm will change state based on their fail-safe setting(s).
4. The horn and strobe(s) associated with the alarm in question will activate.
The alarms can be associated with any oxygen sensor (local or remote) that is connected to the
monitor. The alarms have user selectable set points as well as high and low triggers for the set points.
The alarms have the ability to latch if an alarm condition has occurred. A latched alarm requires that
the user manually clear the alarm indication if the alarm condition no longer exists. The alarms can be
associated with any number of the four (4) available relays and optionally up to eight (8) horn and
strobes. The alarms can be programmed to activate the horn, strobe, or both the horn and strobe6.
6
A Series 1300 Oxygen Deficiency Monitor can control up to four (4) horn and strobes without the need for external power.
With external power the instrument can control up to eight (8) horn and strobes
Series 1300 Oxygen Deficiency Monitor PAGE 29
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
NOTE: If an alarm is active while viewing or editing a parameter while in the “Main Menu” screen, the
“Active Alarms” screen will show for a brief time and then toggle back to the previous screen. This is
to keep the user informed of any active alarms. Pressing any key during any alarm will pause the
display for a short time and allow for menu navigation and edits. After a period of inactivity the “Active
Alarms” screen will reappear. The audible alarm will also change to a “chirp” or a series of short
beeps while pressing any keys.
4.4.1 Alarm System Menu Settings
The following table gives a summary of the alarm settings in the menu and the relevant manual
pages. The figure below it shows the logical steps to set an alarm.
Option Description Reference
Sensor
Set point
HI/LO
Latching
ACTIVATES:
Select the associated sensor input to be
monitored for the alarm.
Enter the value at which the alarm will be set
to monitor.
Select either a “High Alarm” or “Low Alarm”
(whether to activate the alarm if above or
below the set point respectively).
Select whether to latch the activated alarm
rather than having it clear automatically when
the oxygen value that caused the alarm
returns to a non-alarming value.
Menu for activating Optional horn and strobes
and Alarm Relays.
Page 39 - Setting the Alarm Sensor
Page 40 - Setting the Alarm Set point
Page 40 - Setting the Alarm High or Low
Page 40 - Setting the Alarm Latch
Page 40 - Activating Alarm Relays and Horn and Strobes
Table 10 - Overview Of Alarm Settings
Figure 26 - Setting An Alarm
PAGE 30 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
4.4.2 Default Alarm Settings
When shipped from the factory with all three (3) sensors active, the alarms are set to the following defaults:
Default
Sensor
Association
Local Sensor 1 20.0 LO
Local Sensor 2 19.5 LO
Remote Sensor 1 3 20.0 LO
Remote Sensor 1 4 19.5 LO
Remote Sensor 2 5 20.0 LO
Remote Sensor 2 6 19.5 LO
Alarm
Number
Default
Alarm
Value
HI/LO
High / Low
alarm trip point
Table 11 - Default Alarm Settings
If the instrument is ordered with a single (1) sensor, the default alarms will be alarms 1 and 2 at the same
alarm values of 20.0% Low and 19.5% Low respectively. The alarms are user configurable by following the
procedures in the following sections.
4.4.3 Default Alarm Activation Behavior
If using the alarms to activate either the relays or optional horn and strobes, be sure to edit the alarms
in the Main Menu by means of the “ACTIVATES” option. See section 4.8.4.6 “Activating Alarm Relays
and Horn and Strobes” on page 40 for details.
4.4.4 Low Alarms Vs High Alarms
A “low alarm” will activate if the sensor's output falls below the set alarm value. A “high alarm” will
activate when the sensor's oxygen value matches or exceeds the set alarm value.
4.4.5 Alarm Latching
Alarm latching is a feature that allows the activated alarm to “latch” or remain activated even after the
cause of the alarm (either a “high alarm” or “low alarm” was detected) has been resolved. When the
“Latching” parameter is set to “ON”, the user is required to manually clear the alarm indication even if
the alarm condition no longer exists. When latching is set to “OFF”, the activated alarm will
automatically be deactivated if the specified sensor's oxygen value returns to a state outside of the
alarm set point value.
Example: Alarm 1 is set for Remote Sensor 1 at a value of 18% low. The oxygen sensor detects a
drop in the oxygen value and the alarm condition is met, activating Alarm 1. The oxygen value later
returns to a value above 18%. At this time the alarm indication is still active because it has been
latched. Pressing the STATUS button will enter into the “Alarm Status” screen. Pressing the UP and
DOWN buttons will allow locating the “(Active)” alarm as indicated in the display. The user must now
access the “Alarm #” parameters in the “Main Menu” and enter into edit mode on any of the
associated alarm parameters and either confirm or edit the value of the parameter to clear the latched
alarm state.
The simplest way to clear a latched alarm is to press ENTER on the active alarm in the “Alarm
Status” screen, then press ENTER multiple times until the latch is cleared. This effectively
enters the menu at the activated alarm sensor setting. Entering to edit and then entering to
confirm will clear the latch.
Series 1300 Oxygen Deficiency Monitor PAGE 31
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Note: If the alarm condition is still valid and an attempt is made to reset the alarm, the alarm will not
be reset and will continue to be active.
When the “Latching” parameter is set to “OFF”, the alarm indication will clear whenever the alarm
condition no longer exists.
For Example: Alarm 1 is set for Remote Sensor 1 at a value of 18% low. The oxygen sensor detects
a drop in the oxygen value and the alarm condition is met, triggering Alarm 1. The oxygen value later
returns to a value above 18%. At this time all alarm indications will clear because the alarm “Latching”
parameter is set to “OFF”.
4.4.6 Relay Fail-safe Operation
The alarm relays can be placed into fail-safe (“ON” mode) in which the alarm relays will be energized
in a non-alarm condition and the relays will NOT be energized during an alarm condition. This would
be the same relay state (not energized) that would be achieved if the power source were interrupted.
The factory default fail-safe setting is "OFF". See section Relay Fail-safe Operation for information on
setting the fail-safe parameter.
Enter into the “Main Menu” by pressing the ENTER button while on the “Home” screen. Navigate the
menu until you reach the menu heading “FAILSAFE SETUP” and press the RIGHT or ENTER button
to expand the “FAILSAFE SETUP” sub-menu. Under the “FAILSAFE SETUP” sub-menu heading
there is a list of four (4) alarm relays, navigate to the appropriate relay number and press the ENTER
button to edit the parameter. Use the UP and DOWN buttons to change this parameter to either “ON”
or “OFF”. When finished, press the ENTER button then press ENTER again to confirm or press the
ESCAPE button to cancel and revert to the previous setting.
4.4.7 Navigating Alarms
Navigate the alarms by pressing the ESCAPE button repeatedly until the Home screen is showing.
Then press the STATUS button to see the “Alarm Status” screen.
ALARM 1 (Inactive)
Active if Sensor 1
greater than:
22.0% Non-Latching
High Alarm
ALARM 1 (Inactive)
No Sensor Configured
Press Enter to
configure this alarm
Disabled Alarm (No Sensor selected)
Table 12 - Alarm Status Screens
Scroll up and down while in the “Alarm Status” screen to the desired alarm number to be viewed.
Pressing the ESCAPE button will return to the Home screen.
To edit the currently viewed alarm number, press the ENTER button to jump to the selected alarm in
the “Main Menu”. Under the “Alarm #” heading there is a list of parameters, press the ENTER button
on the desired parameter to edit.
ALARM 2 (Inactive)
Active if Sensor 1
less than/equal to:
19.0% Non-Latching
Low Alarm
PAGE 32 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
4.5 Horn And Strobe
The Series 1300 Oxygen Deficiency Monitor has a dedicated interface for connecting to horn and
strobes provided by Alpha Omega Instruments. This interface is a three (3) wire connection consisting
of a 12VDC Power connection, a 12V Ground connection, and a communications data line. This
interface allows up to 8 horn and strobes to be connected to the Series 1300 Oxygen Deficiency
Monitor7. The horn and strobe units have a user settable address based on switch settings within the
horn and strobe enclosure (see section “Horn and Strobe Switch Settings” on page 20 for details on
setting the horn and strobe address). When a horn and strobe unit is connected to the Series 1300
Oxygen Deficiency Monitor the unit is automatically detected and the user is prompted with the “Alert”
screen similar to Figure 27 below.
A T T E N T I O N!
H&S 1 DETECTED!
Press Enter to
configure this alarm
Figure 27 - Horn And Strobe Detected
Horn and Strobe names have a default setting of “H&S #”. Where “#” represents 1 through 8.
Pressing the ENTER button on this screen will show the user the “Enabled?” parameter in the horn
and strobe menu for the horn and strobe address that was detected. Here the user can enable the
detected horn and strobe by selecting “YES” and then pressing ENTER. Confirm the choice by
pressing ENTER. Pressing ESCAPE will cancel and return to the menu. An alert will continue unless
the detected horn and strobe is either enabled or removed.
NOTE
THE HORN AND STROBE “ENABLE?” PARAMETERS ARE HIDDEN DURING
NORMAL OPERATION. THESE PARAMETERS ARE ACCESSIBLE ONLY
THROUGH THE “ALERT” SCREEN AND BECOME AVAILABLE WHEN A DEVICE
HAS BEEN CONNECTED OR DISCONNECTED FROM THE SERIES 1300 OXYGEN
DEFICIENCY MONITOR. THE ITEMS UNDER THE “ACTIVATES” MENU ARE
ALSO POPULATED BASED ON AVAILABLE HORN AND STROBES.
If a horn and strobe is enabled but is not connected, this can indicate that either the horn and strobe
has become disconnected due to a wiring problem or the horn and strobe was set to enabled by the
user and is not connected. The following is detected and the user is prompted with the “Alert” screen
similar to Figure 28 below.
A T T E N T I O N!
H&S 2 REMOVED!
Press Enter to
configure this alarm
Figure 28 - Horn And Strobe Removed
Pressing the ENTER button on this screen with take the user to the “Enabled?” parameter in the horn
and strobe menu for the horn and strobe address that was detected, here the user can disable the
missing horn and strobe. This will eliminate the alert.
7
An AC powered Series 1300 Oxygen Deficiency Monitor can control up to four (4) horn and strobes without the need for
external power. With external power the instrument can control up to eight (8) horn and strobes. 12VDC powered instruments
can allow for all 8 horn and strobes. Call factory for details.
Series 1300 Oxygen Deficiency Monitor PAGE 33
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
4.5.1 Horn And Strobe Naming
The user also has the ability to name each of the enabled horn and strobes. Naming a horn and
strobe allows the user to use a more descriptive name such as “Horn Lab2” or “Strobe #9” rather than
“H&S 1” for instance. This name will be shown throughout the menu when selecting the named horn
and strobe for Alarm activation as well as enabling or disabling the horn and strobe. Naming is
already described in section 4.8.7.1 - “Naming the horn and strobe” on page 42.
4.6 Analog Outputs
The Series 1300 Oxygen Deficiency Monitor is equipped with two (2) standard, non-isolated, analog
outputs (galvanically isolated analog outputs are available as a factory option). Each output can be
selected to operate with any sensor connected to the monitor. The analog outputs can be set to
correspond to a custom low to high range within the measurement range of the sensor. The standard
monitor is shipped from the factory as shown below:
Output
Analog Output 1
Analog Output 2
Associated
Sensor
OFF 0% 30% 4mA
“Scale Low” “Scale High” mA Offset
Table 13 - Analog Output Factory Default Settings
Regardless of how the analog outputs are scaled, the monitor will always maintain the capability of
displaying the sensor's oxygen concentrations over the instrument’s entire range of 0 to 30%.
Therefore alarms are independent of the output scaling and will continue to operate.
The analog output offset setting determines whether the associated current output is either 0-20mA or
4-20mA (“live zero”). The “live zero” allows equipment monitoring the current loop to know that
something is wrong when the current falls below 4mA. The “zero” part of the “live zero” is really a
misnomer in that the “zero” is really the lowest reading (or “Scale Low”) that is programmed in the
menu. The 0mA setting on the other hand allows for easy scaling when using a resistor to convert the
current to a voltage. These options provide great flexibility in controlling the range of the analog
outputs (see 1.6 Standard Features on page 4 for specifications on maximum load resistance).
4.6.1 Analog Output Sensor Association
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “OUTPUTS SETUP”. Press the RIGHT arrow button or
ENTER to see the parameters under this title. Navigate to the title “Analog Out 1” (or “Analog Out 2”)
and press the ENTER button. Under the “Analog Out #” heading there is a list of parameters.
Navigate to the “Sensor” parameter and press the ENTER button to edit the parameter. This
parameter can be set for any enabled sensor using the UP and DOWN buttons. When finished, press
the ENTER button to save this parameter or press the ESCAPE button to cancel all changes. Both
analog outputs can be associated with the same sensor and with different scales.
4.6.2 Analog Output Range
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “OUTPUTS SETUP”. Press the RIGHT arrow button or
ENTER to see the parameters under this title. Navigate to the title “Analog Out 1” (or “Analog Out 2”)
and press the ENTER button. Under the “Analog Out #” heading there is a list of parameters. Be sure
the Sensor parameter does NOT read “OFF” or the analog output range cannot be defined and will
PAGE 34 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
Desired V (5)
20 mA
=250 Ohms
not show in the menu. Once a sensor is selected, navigate to the “Scale High” parameter and press
the ENTER button to edit the parameter. Use the UP, DOWN, LEFT, and RIGHT buttons to change
this parameter for any number between the value of the “Scale Low” parameter and the maximum
operating range of the sensor. This parameter represents the sensor value at which the analog output
will be at its highest (20mA). When finished, press the ENTER button to save this parameter or press
either the Alarm 1 or Alarm 2 buttons to cancel all changes. Navigate to the “Scale Low” parameter
and press the ENTER button to edit the parameter. Use the UP, DOWN, LEFT, and RIGHT buttons to
change this parameter for any number between the value of the “Scale High” parameter and zero.
“Scale Low” represents the sensor value at which the analog output will be at its lowest (0mA or 4mA
depending on the output's “Offset” setting). When finished, press the ENTER button to save this
parameter or press the ESCAPE button to cancel all changes.
Notes:
1. The “Scale High” value cannot be set lower than the “Scale Low” value. Likewise, the “Scale Low”
value cannot be set higher than the “Scale High” value. If you are unable to adjust either parameter
to the desired value, check that the other parameter's value is not interfering.
2. Whenever changing the Analog Output Sensor Association, always check and rescale the “Scale
High” and “Scale Low” parameters to avoid having the old sensors associated settings “left over”
from a previous setting.
4.6.3 Analog Output Offset
Enter into the “Main Menu” by pressing the ENTER button while on the “Home” screen. Navigate the
menu until you reach the menu heading “OUTPUTS SETUP”. Press the RIGHT arrow button or
ENTER to see the parameters under this title. Navigate to the title “Analog Out 1” (or “Analog Out 2”)
and press the ENTER button. Under the “Analog Out #” heading there is a list of parameters. Be sure
the Sensor parameter does NOT read “OFF” or the analog output range cannot be defined and will
not show in the menu. Once a sensor is selected, navigate to the “Offset” parameter and press the
ENTER button to edit the parameter. Use the UP and DOWN buttons to change this parameter to
either 0mA or 4mA. When finished, press the ENTER button to save this parameter or press the
ESCAPE button to cancel all changes.
4.6.4 Voltage Output Mode
To use the analog outputs as voltage outputs, choose whether or not to use an offset first and select
this as described in the previous paragraph. First determine the desired voltage output. For this
example we selected a range of 0-5 volts. Make sure the Analog Output Offset is set to 0mA. Use the
formula below to calculate the required resistance needed to create 5V:
The desired 5 Volts divided by 20mA (0.020 Amperes) yields a resistance of 250 ohms. This is the
resistance necessary to terminate the analog output to obtain a 0-5V full scale output. Please
remember that the maximum resistance across the output (including the wiring) is 300 ohms max @
25C using standard 12V supply.
Using the previous example, a simple way of changing to a 1 to 5V output with a “live” zero is by
simply selecting “4mA” as the analog output offset as described previously.
Note: The isolation option also allows for a higher maximum load resistance. See 1.6 Standard
Features on page 4 for specifications on maximum load resistance.
8
1200 ohms max @ 25C if using isolated analog outputs.
Series 1300 Oxygen Deficiency Monitor PAGE 35
8
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
4.7 Navigating The Menu
This section describes how to navigate through the “Main Menu”. These instructions are general and
any special cases will be described throughout the manual when appropriate.
Pressing the ESCAPE button several times
will show the “Home” screen. Pressing the
ENTER button from this screen will then
show the “Main Menu” screen as shown.
Pressing the UP and DOWN buttons will
allow the user to navigate by scrolling to the
desired item that is highlighted by two small
arrows on the left and the right of the line.
Line items that have a plus sign indicate that
the item is collapsible and can be “opened”
by pressing either the ENTER button or the
RIGHT Arrow button. When open the plus
sign will change to a minus sign as shown.
Likewise, to collapse the item with a minus
sign, simply press the ENTER button again
or press the LEFT Arrow button.
Note that if the item does not have a plus or
minus sign then pressing ENTER will
access the item for editing and the display
will show to following.
M A I N M E N U
>Passcode #1 1300<
+CALIBRATE
+SENSOR SETUP
Passcode #1 1300
-CALIBRATE
Sensor 1 20.9
Sensor 2 20.7
**** EDIT MODE ****
Item to edit: ????
Enter to accept
ESCAPE cancels
When calibrating, the menu will warn the
user, as shown, with the following display.
When setting the alarms, the menu will
show the alarm logic during editing.
Example as shown.
*** CALIBRATION ***
Item to edit: ????
Enter to accept
ESCAPE cancels
**** EDIT MODE ****
if val <= 20.0
Enter to accept
ESCAPE cancels
Figure 29 - Main Menu
4.7.1 Timing Out
After approximately two (2) minutes of inactivity, the Series 1300 Oxygen Deficiency Monitor will
revert back or “time out” and return to the "Home" screen.
When the instrument times out while setting a parameter, the parameter value will revert to that which
was previously set. This is equivalent to canceling any input by pressing the ESCAPE button. This
feature helps to prevent the user from inadvertently keeping the monitor off-line for a prolonged
period of time or changing a parameter to an undesirable value.
PAGE 36 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
4.8 Main Menu
The following table is a copy of the menu items with descriptions and available options. Please see
detailed information about each item on the following pages.
NOTE: Some items may not be shown depending on options and/or unused entries.
MENU ITEM DESCRIPTION OTHER DETAIL
M A I N M E N U Start of the Main Menu
Passcode Hides the menu if not set to “1300”
CALIBRATE Calibration menu
[Available Sensors]... Default or User defined sensor labels
SENSOR SETUP
[ALL Sensors]... User defined sensor labels Defaults: “Remote-1”,
“Remote-2”, and “Local”
Edit: Edit the name for the selected sensor
ALARM SETUP
Alarm 1...9
Sensor Sensor that triggers the alarm. If set to “OFF”
then all associated parameters will be hidden.
Set point Value at which the alarm will trigger
HI/LO? Trigger above (HI) or below (LO) the set point
Latching?
ACTIVATES sub-menu
Horn & Strobes:X sub-title showing number of active H&S “(0)” indicates none available
H&S 1...8 Alarm can trigger the Horn, Strobe, Both, or None These show if connected and
Relays: sub-title
Relay 1...4 Alarm can trigger any combination of relays
FAILSAFE SETUP
Relay 1...4 FAILSAFE “ON” will energize the relay when
NOT in alarm
OUTPUTS SETUP
Analog Output 1,2
Sensor Selects the sensor to transmit on the output. If
set to “OFF” then all associated parameters will
be hidden.
If sensor is OFF then nothing
else shows below in sub-menu
enabled
If sensor is OFF then nothing
else shows below in sub-menu
Scale High Set the highest range of the analog output Typically 30%
Scale Low Set the lowest range of the analog output Typically 0%
Offset Optionally remove the default 4mA loop offset Typically 4mA
HORN & STROBES
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MENU ITEM DESCRIPTION OTHER DETAIL
[Available H&S] User defined H&S labels
Name Edit the name for the selected horn/strobe
Address The fixed address of the name above Informational only
DATALOGGER
Sensors to Log Sub menu
Log Sensor[X]... Select YES to log this sensors data Disabled sensors are not shown
Logger Setup Sub menu
State Current state of the logger STOP, RUN, PRINT
Mode LIVE, START/STOP,
CONTINUOUS
Sample (Secs) Sample rate of data logger in seconds up to 60
Timestamp Add time stamp to data-logger output file
Clock Set Sub menu
Year
Month
Day of Month
Time
MISCELLANEOUS
Baud Rate Selectable baud rates
Line Ending Select line ending (CR/LF is default) CR, LF, CR/LF, LF/CR, USER,
OFF
Addressing Typically for RS-485 (up to 32 units on line) Colon precedes the address #
Address RS485 address # from 1 to 32 use :X where X is the address
RS Echo Enable
FIELD ELEVATION
Info 1 SEE INSTRUCTIONS
Info 2 ON INSIDE COVER
Sensor [X]... One time cal for change in elevation ONLY done when the instrument
is moved to another location at a
significant change in elevation.
SYSTEM INFO
Info 1-4 Version, Company, Serial Number, Code Info
Mmm DD YYYY Compile Date Month, Day, and Year
HH:MM:SS Compile Time
M A I N M E N U Loop back around to Main Menu
Table 14 - Main Menu
PAGE 38 Series 1300 Oxygen Deficiency Monitor
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4.8.1 Passcode
Setting this number to anything other than “1300” will result in the menu being hidden. This is a
simple way to hide the settings from accidental changes. To allow the menu to be visible again,
simply change it back to the number “1300”.
4.8.2 CALIBRATE
Navigate to the desired sensor name and press the ENTER button to edit this parameter. The value
for this parameter can be changed using the UP, DOWN, LEFT, and RIGHT buttons. Note that the
display will also show the “live” value on line 3. This allows viewing the actual oxygen sensor
concentration while selecting the new calibration value. This allows the signal to be monitored for
stability before performing the actual calibration. When the desired calibration value is showing in the
display, simply press the ENTER button. Press the ENTER button a second time to confirm the
Calibration or press the ESCAPE button to cancel and revert back to the original calibration value. A
typical calibration will be performed at “20.9”. This assumes a fresh room air at 20.9% concentration
of oxygen. However, it may be necessary to change this number if the calibration is performed using
a cylinder of gas. See section Calibration Procedures on page 48 for more details on calibrating.
4.8.3 SENSOR SETUP
The only parameter needed for setting up the sensor is the sensor's name.
4.8.3.1 Sensor Naming
Each sensor's name can be changed from the factory default name to something more descriptive
like “Oxygen 1” or “Lab O2%” for instance. This name will be shown throughout the menu when
selecting the Sensor for Alarms, Output settings, and Calibrations.
To change the name of a Sensor enter into the “Main Menu” by pressing the ENTER button while on
the "Home" screen. Navigate the menu until you reach the menu heading “SENSOR SETUP“ and if
not expanded press ENTER to open the sub menu. Navigate to the desired sensor name to be
changed and press ENTER again to open the parameter called “Name:”. Press the ENTER button to
edit the name parameter. The name parameter can be set for letters, numbers, and symbols up to 8
characters long. Press the ENTER button to save this parameter or the ESCAPE button to cancel all
changes. If the parameter value was changed, press the ENTER button again to confirm the changes
or press the ESCAPE button to cancel.
4.8.4 ALARM SETUP
Under this sub-menu the user can define how each individual alarm will trigger based on the selected
sensor. The alarm can be set for a “low alarm” or a “high alarm”. A “low alarm” will activate if the
sensor's output falls below the set alarm value. A “high alarm” will activate when the sensor's oxygen
value matches or exceeds the set alarm value. The triggering allows for any combination of outputs.
This includes Relays, Horns, and Strobes. Each menu item is described below.
4.8.4.1 Setting The Alarm Sensor
If used, each alarm must have a sensor associated with it. Simply select the sensor to be used for the
alarm or set it to “OFF”. Setting it to “OFF” will disable it and also hide it's selections from showing on
certain screens to avoid accidentally setting alarm parameters that are not available.
Press the STATUS button while on the “Home” screen to view the “Alarm Status” screen then use the
UP and DOWN buttons to select the desired Alarm number. Navigate to the “Sensor” parameter and
press the ENTER button to edit the parameter. This parameter can be set for any sensor connected
to the monitor or to “OFF” using the UP and DOWN buttons. Setting the sensor to “OFF” disables the
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alarm function and will hide the alarm parameters. Press the ENTER button to save this parameter or
press the ESCAPE button to cancel all changes. If the parameter value was changed, press the
ENTER button to confirm changes or press the ESCAPE button to cancel all changes. Alarms can be
associated with the same sensor.
NOTE: When the sensor is set to “OFF” no other associated parameters are listed.
4.8.4.2 Setting The Alarm Set Point
The Alarm Set Point is the value at which the alarm will trigger.
Press the STATUS button while on the “Home” screen to view the “Alarm Status” screen then use the
UP and DOWN buttons to select the desired Alarm number. Navigate to the “Set point” parameter
and press the ENTER button to edit the parameter. Use the UP, DOWN, LEFT, and RIGHT buttons to
change this parameter to any value within the operating limits of the selected sensor type. Press the
ENTER button to save this parameter or press the ESCAPE button to cancel all changes. If the
parameter value was changed, press the ENTER button to confirm changes or press the ESCAPE
button to cancel all changes.
4.8.4.3 Setting The Alarm High Or Low
A “low alarm” will activate if the sensor's output falls below the set alarm value. A “high alarm” will
activate when the sensor's oxygen value matches or exceeds the set alarm value.
Press the STATUS button while on the “Home” screen to view the “Alarm Status” screen then use the
UP and DOWN buttons to select the desired Alarm number. Navigate to the “HI/LO” parameter and
press the ENTER button to edit the parameter.
This parameter can be set for “LO” which means that the alarm will activate if the specified sensor's
oxygen value is “less than or equal to” the alarm set point value. It can also be set to “HI”, which
means the alarm will activate if the specified sensor's oxygen value is “greater than” the alarm's set
point value.
Press the ENTER button to save this parameter or press the ESCAPE button to cancel all changes. If
the parameter value was changed, press the ENTER button to confirm changes or press the
ESCAPE button to cancel all changes.
4.8.4.4 Setting The Alarm Latch
Press the STATUS button while on the “Home” screen to view the “Alarm Status” screen then use the
UP and DOWN buttons to select the desired Alarm number. Navigate to the “Latching” parameter
and press the ENTER button to edit. UP and DOWN will toggle the parameter. When finished, press
the ENTER button then press ENTER again to confirm or press the ESCAPE button to cancel and
revert to the previous setting.
4.8.4.5 Clearing A Latched Alarm
To manually clear an activated alarm that was latched, enter the sub-menu for the alarm that is
latched and either edit or confirm any one of the associated parameter values to clear the latched
alarm state.
4.8.4.6 Activating Alarm Relays And Horn And Strobes
Press the STATUS button while on the “Home” screen to view the “Alarm Status” screen then use the
UP and DOWN buttons to select the desired Alarm number. Navigate down to the line that reads
“ACTIVATES:”. Under the “ACTIVATES:” heading there is a list of enabled horn and strobes as well
as the four (4) alarm relays. NOTE: if no horn and strobes are enabled, only the line that reads “Horn
& Strobes:0” will appear to indicate that there are no horn and strobes available to select.
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Navigate to the appropriate parameter and press the ENTER button to edit the parameter. If
available, the horn and strobes can be set to activate the “HORN” which activates only the Horn,
“STROBE” which activates only the Strobe, “BOTH” which activates both the horn and strobe, or
“NONE” which disable the selected horn and strobe from the selected alarm. The alarm relays can be
set for “YES” or “NO”. Setting the relay to “YES” will toggle the relay from it's original fail-safe state
upon activation of the alarm. See Relay Fail-safe Operation on page 32 for more detailed information
on fail-safe settings. Setting the relay to “NO” will disable the relay for the selected alarm.
4.8.5 FAILSAFE SETUP
Turns fail-safe on or off for the specified relay. Navigate to the desired relay and press ENTER to
access the parameter to change. Pressing the UP and DOWN buttons will toggle the parameter from
“ON” to “OFF”. Press ENTER on the desired setting, then ENTER to confirm or press ESCAPE to
cancel the change and revert to the previous setting. See Relay Fail-safe Operation on page 32 for
more detailed information on fail-safe settings.
4.8.6 OUTPUTS SETUP
The “OUTPUTS SETUP” menu item allows for configuring the analog outputs for the desired sensor
to be used, the lowest range of percent oxygen (“Scale Low”), and the highest range of percent
oxygen (“Scale High”). See Analog Outputs on page 34 for more detailed information about scaling
the analog outputs.
4.8.6.1 Sensor
Select the sensor to be used for the selected Analog Output..
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “OUTPUTS SETUP” and navigate into the sub menu of
either “Analog Out 1” or “Analog Out 2”. Under each of these headings is a list of parameters.
Navigate to the “Sensor” parameter and press the ENTER button. Using the UP and DOWN buttons,
select the desired sensor or select “OFF”. When finished, press the ENTER button then press
ENTER again to confirm or press the ESCAPE button to cancel and revert to the previous setting.
The same sensor can be selected for both analog outputs.
NOTE: When the sensor is set to “OFF” no other associated parameters are listed.
4.8.6.2 Scale Low & Scale High
This allows changing the default output scaling of the analog outputs.
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “OUTPUTS SETUP” and navigate into the sub menu
“Analog Out 1” or “Analog Out 2”. Under the selected heading there is a list of parameters. Navigate
to the “Scale Low” parameter and press the ENTER button to edit the parameter. Use the UP,
DOWN, LEFT, and RIGHT buttons to change this parameter for any number between the value of the
“Scale High” parameter and zero. “Scale Low” represents the sensor value at which the analog output
will be at its lowest (0mA or 4mA depending on the output's “Offset” setting). When finished, press the
ENTER button then press ENTER again to confirm or press the ESCAPE button to cancel and revert
to the previous setting.
Navigate to the “Scale High” parameter and press the ENTER button to edit the parameter. Use the
UP, DOWN, LEFT, and RIGHT buttons to change this parameter for any number between the value
of the “Scale Low” parameter and the maximum operating range of the sensor type selected. This
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USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
parameter represents the sensor value at which the analog output will be at its highest (20mA). When
finished, press the ENTER button then press ENTER again to confirm or press the ESCAPE button to
cancel and revert to the previous setting.
The “Scale High” value cannot be set lower than the “Scale Low” value. Likewise, the “Scale Low”
value cannot be set higher than the “Scale High” value. If you are unable to adjust either parameter to
the desired value, check that the other parameter's value is not interfering.
Whenever changing the Analog Output Sensor, always check and rescale the “Scale High” and
“Scale Low” parameters to avoid having the previous sensor's settings “left over” from a previous
setting.
4.8.6.3 Analog Output Offset
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “OUTPUTS SETUP” and navigate into the sub menu “Analog
Out 1” (or “Analog Out 2”). Under the selected heading there is a list of parameters. Navigate to the
“Offset” parameter and press the ENTER button to edit the parameter. Use the UP and DOWN
buttons to change this parameter to either 0mA or 4mA. When finished, press the ENTER button then
press ENTER again to confirm or press the ESCAPE button to cancel and revert to the previous
setting. See Analog Outputs on page 34 for more information.
4.8.7 HORN & STROBES
The user has the ability to name the horn and strobe.
4.8.7.1 Naming The Horn And Strobe
Similar to the sensor name, the Horn and Strobe name can be changed from the factory default. This
name will be shown throughout the menu when selecting horn and strobes.
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “HORN & STROBES” and navigate to the “Name” parameter
for the desired horn and strobe. Press the ENTER button to edit the name. This parameter can be set
for letters or numbers up to 8 characters long. When finished, press the ENTER button then press
ENTER again to confirm or press the ESCAPE button to cancel and revert to the previous setting.
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4.8.8 DATA LOGGER
The data-logger sub-menu has all the items necessary to configure the built in data logging feature.
See section Data Logger on page 45 for complete details on the various settings and their functions.
Item Detail Reference
State Change the current state of the logger. This parameter
can be set to “RUN”, “STOP”, or “PRINT”.
Mode Change the mode of the logger. This parameter can be
set to “LIVE”, “START/STOP”, or “CONTINUOUS”.
Sample (Secs) Change the data-loggers sample seconds. This
parameter can be set from 1 to 60 seconds.
Timestamp Select whether or not to have the data-logger include a
time stamp in it's output.
Year Set the real time clocks calendar year setting.
Month Set the real time clocks calendar month setting.
Day of Month Set the real time clocks calendar day of the month
setting.
Time Set the real time clocks calendar time setting.
Log Sensors Select each sensor to be logged.
See section Data Logger on page 45
Table 15 - Data Logger Settings
4.8.9 MISCELLANEOUS
The Series 1300 Oxygen Deficiency Monitor has basic system settings available for the user to edit.
These settings include the baud rate, line endings, RS Echo, and serial addressing.
Item Detail Reference
Baud Rate Change the baud rate for RS-232 & RS-485 interface.
Line Endings Control what the instrument uses for line endings.
RS Echo This option if turned ON, will echo the characters when
Addressing is set to OFF.
Addressing For use with multiple instruments on the same serial bus.
Table 16 - Miscellaneous Settings
See section 11 Serial Communications
on page 59
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4.8.10 Field Elevation Adjustment
Please note that the Series 1300 Oxygen Deficiency Monitor automatically compensates for elevation
when a new sensor is installed and therefore NO Field Elevation Adjustment is necessary.
A Field Elevation Adjustment is designed to compensate for any large ambient pressure changes
resulting from a change in altitude. It is assumed that the sensor is relatively new and that the oxygen
level present at the sensor being adjusted is at normal breathing air (or more specifically 20.9%
oxygen by volume). To perform a field elevation adjustment:
1. Make sure the instrument has been powered for at least 30 minutes and that the sensor is exposed
to ambient air (specifically 20.9% oxygen) for at least 10 minutes.
2. Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate
the menu until you reach the menu heading “MISCELLANEOUS” and then navigate into the sub
menu “FIELD ELEVATION”. Scroll down below the warning and under the “FIELD ELEVATION”
heading there is a list of enabled sensors. Navigate to the appropriate sensor name and press the
ENTER button to initiate the field elevation. The value of 20.9 will show in the display. This value
cannot be changed.
3. Press the ENTER button to accept the 20.9% value. Press the ENTER button a second time to
confirm a Field Elevation Adjustment. Pressing the ESCAPE button at any time before confirming
will cancel the Field Elevation. At this point the oxygen value should be reading 20.9% in the
display.
Note: For optimum results upon initial installation, the monitor should be powered on for at least
one (1) hour prior to all calibrations to allow all components to reach equilibrium at the prevailing
ambient temperature. Subsequent calibrations after initial installation can be performed within
minutes. See section 7 “Calibration Procedures” on page 48 for details.
IMPORTANT: Field elevation adjustment should only be done after the instrument is moved to
an altitude that is more than 100 feet higher or lower than the initial installation location. Alpha
Omega recommends that customers document the date, time, location and person performing
the field elevation adjustment.
4.8.11 System Information (“SYSTEM INFO”)
The following information is shown in the system menu:
System Menu Item Description
Factory Code Temporary Code for service (only needed on request from factory)
User Code User code received from factory to allow temporary factory access
Last Message Status messages (see 10.3 Table 20)
Serial Number Instrument
Sensor Serial numbers Original Sensor(s)
PCB Serial Number Main system printed circuit board
Date Compiled Code Date
Time Compiled Code Time
Table 17 - System Information
PAGE 44 Series 1300 Oxygen Deficiency Monitor
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5 Data Logger
The data logger allows the capture of sensor information at user programmable intervals. The data
logger may be configured to record any number of valid sensors connected to the instrument. The
logger allows 3 different logging modes and easy download to a terminal program through the built in
RS232 communications. To access the data logger features, enter into the “Main Menu” by pressing
the ENTER button while on the "Home" screen. Navigate the menu until you reach the menu heading
“DATA LOGGER” and press the RIGHT or ENTER button to expand the “DATA LOGGER” sub-menu.
Under the “DATA LOGGER” sub-menu heading there is a list of parameters. Navigate to the
appropriate parameter and press the ENTER button to edit the parameter. Use the UP and DOWN
buttons to change the parameter value. When finished, press the ENTER button then press ENTER
again to confirm or press the ESCAPE button to cancel and revert to the previous setting. Below are
a list of available parameters for operating the data logger.
5.1 Logger Operation
The data logger is very easy to use but is configurable for a number of options as described in this
section.
5.1.1 Logger State
The data logger has 3 different states as shown below. These states allow the user to start and stop
the data logger as well as download the data stored in the logger's memory.
STOP Logger is stopped and will not log data
RUN Data Logger is running and storing selected sensor data as the
programmed interval
PRINT The data stored by the data logger is sent out on the RS232
communications line
When entering “PRINT” operation be sure that the communications port is open and the terminal
program is set to receive the information. Due to the large amount of data that can be produced over
a long term logging session, it is recommended that the data be captured to a file. The time to
download the file may be up to 10 minutes if the logger is completely full.
Note: the “PRINT” command will output the data and then automatically enter the “STOP” state.
Note: the “RUN” command will NOT allow any other logger commands EXCEPT “STOP” and
“PRINT”.
Note: the “PRINT” command will output “logger empty” if no data has been logged. The previously
logged data is available and can still be printed until a new “RUN” command is executed.
5.1.2 Logger Mode
Before the logger is set to “RUN”, the mode of operation should be set. The logger has 3 modes of
data collection as follows:
LIVE Stores data to both the instrument as well as outputs the data to the
RS232 port.
START/STOP The data will log until memory is full. When memory is full the logger will
stop storing new information
CONTINUOUS The data logger will store data and continuously overwrite the oldest
data in memory.
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5.2 Sample Interval
Before the logger is set to “RUN”, the sample interval should be set. The value can be set from 1 to
60 seconds. Data will be stored for the selected sensors every sample interval based on the data
logger mode.
The approximate number of samples is determined by the number of sensors logged and the interval
length. Estimates are shown in the table below:
Number of Sensors Interval of 1 second Interval of 60 seconds
1 26.88 hours 67.2 days
2 13.44 hours 33.6 days
3 8.96 hours 22.4 days
For the optional extended memory logger, the length of time will be:
Number of Sensors Interval of 1 second Interval of 60 seconds
1 72.391 hours 180.978 days
2 36.196 hours 90.489 days
3 24.130 hours 60.326 days
5.3 Date And Time
When the data logger is set to PRINT, the Series 1300 Oxygen Deficiency Monitor will use the date
and time set here to calculate the time stamp. If the optional time stamp is turned off, there is no
reason to set the time.
Parameter Description Format Where:
Year Set the Year 20YY YY is 00-99
Month Set the Month MM MM is 1-12
Day Set the Day of the month DD DD is 1-31
Time Set the Time HH:MM HH is 0-23, MM is 0-59
5.4 Sensor Selection
Before the logger is set to “RUN”, the Series 1300 Oxygen Deficiency Monitor is capable of
supporting up to 3 oxygen sensors. Each of these sensors can be independently set for data logging.
Sensor#1 Select YES to log this sensor, NO to ignore
Sensor#2 Select YES to log this sensor, NO to ignore
Sensor#3 Select YES to log this sensor, NO to ignore
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6 Sensor Setup
The Series 1300 Oxygen Deficiency Monitor can operate with up to three (3) oxygen sensors
connected simultaneously. The Series 1300 can support one (1) oxygen sensor mounted locally to
the main electronics enclosure and up to two (2) oxygen sensors mounted remotely.
Upon installation and if adding a sensor to an existing instrument, when a sensor is connected to the
instrument is it automatically detected and the display will indicate “Wait” with a count-down timer of
30 minutes. The name if previously set will also show or if blank it will default to “SensorX” where X is
the number of the sensor channel. Sensor 1 is the 1st Remote sensor, Sensor 2 is the 2nd Remote
sensor, and Sensor 3 is the Local sensor.
All instruments are are shipped with their sensors unplugged and therefore need to be plugged in
before use.
6.1 Sensor Removal
Assuming there is NO ALARM, if a connection to an enabled sensor is lost the “Alert” screen will
display the following message with the first detected sensor:
!! W A R N I N G !!
DANGEROUS LOW O2 LVL
Remote 1 Sensor LOW!
SEE MANUAL'WARNINGS'
This will repeatedly show for
a short time then revert back
to the "Home" screen.
WARNING
THIS MESSAGE CAN SERVE AS A WARNING THAT A SENSOR MAY HAVE BEEN
UNINTENTIONALLY DISCONNECTED. ONLY DISABLE A SENSOR IF IT HAS
BEEN INTENTIONALLY REMOVED FROM THE SYSTEM. ANY SUBSEQUENT
CONNECTION OF THIS SENSOR WILL RESULT IN RECOGNIZING IT AS A NEW
SENSOR.
Pressing the ENTER button at this alert screen will bring the user to the “Enabled?” parameter in the
“SENSOR SETUP” menu. This is where the sensor can be disabled. Note: if temporarily removing a
sensor for examination, DO NOT disable it here. If disabled, the instrument will detect any newly
connected sensor as a NEW sensor. Therefore, if in the case of a temporary removal, simply ignore
the alert (press the ESCAPE button) and place the sensor back into service when finished. The alert
will automatically stop once the sensor is detected again.
**** EDIT MODE ****
> Enabled? NO<
Enter to accept
ESCAPE cancels
If the sensor is being removed permanently or it is being replaced, then press the ENTER button to
edit this parameter to disable it. Use the UP or DOWN buttons to change this parameter to “NO” and
press the ENTER button to accept the new value. Press the ENTER button a second time to confirm
the change or press the ESCAPE button to cancel all changes. This will remove the sensor and allow
adding a new sensor.
DO NOT remove an old sensor, then ignore the “Enabled?” alert screen to only follow it by adding a
new sensor. This will not allow the instrument to detect the new sensor and may require extra
calibrations and result in more alerts.
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7 Calibration Procedures
All Series 1300 Oxygen Deficiency Monitors have been fully calibrated at the factory prior to
shipment. Upon first time installation, the sensors will need to be plugged in and the instrument will
wait 30 minutes for each new sensor that is plugged in and then automatically calibrate for the
ambient conditions. Therefore there is typically NO need for any elevation adjustment unless moving
an instrument from one location to another with a significant change in elevation.
7.1 Routine Calibration Check
Routine maintenance is kept to a minimum. As is the case with all gas monitors, it is advisable to
periodically check the overall system calibration. The frequency of these checks is often determined
by in-house calibration protocols. If none exists, Alpha Omega Instruments Corp. recommends that a
calibration check be made on average once every 3-6 months. In time, if this frequency is extended, it
should never go beyond checking the monitor at least every six months. Given the importance of the
requirement, calibration checks are prudent. It is advisable that a written log be kept to document the
frequency of calibration checks and or changes. Individual calibration procedures are detailed on the
following pages.
7.2 Oxygen Calibration
A single calibration point at 20.9% oxygen concentration by volume is all that is required provided the
calibration is performed correctly. No zero gas adjustment is required.
Note: For optimum results the instrument should be powered on for at least 30 minutes prior to all
calibrations to allow all components to reach equilibrium at the prevailing ambient temperature.
Subsequent calibrations can be performed within minutes. The sample gas should be exposed to the
sensor (or flowing) for at least 10 minutes prior to calibration.
7.2.1 Calibration With Ambient Air
The Series 1300 Oxygen Deficiency Monitor has a measurement range of up to 30% and is designed
to monitor ambient breathing air at 20.9%. This is the desired calibration concentration. 20.9%
oxygen by volume is a convenient calibration source since it is what we typically breath in an open air
environment. However, if using ambient air, it is essential that the quality of the ambient air used for
calibration NOT BE TAINTED by other gases in the surrounding environment. If the composition of
the air is unknown then it is imperative that the sensor be calibrated in a location that is not affected
by any leakage of stored gases. A large office environment or an area exposed to fresh outside air is
ideal.
7.2.2 Calibration With Other Gases
If a fresh air supply is not available, it is recommended that an oil free certified standard, or primary
standard of cylinder gas containing a concentration of 20.9% oxygen/balance of nitrogen be used for
calibration. Please do not use plant air, or any other types of compressed air as oxygen
concentrations may contain a value other than 20.9%, and therefore could result in an incorrectly
calibrated monitor. Most major gas manufacturers are able to prepare certified or primary standard
grade binary calibration gases containing a mixture of 20.9% oxygen with the balance of nitrogen.
IMPORTANT: The Alpha Omega Instruments Optional Calibration Fixture is required when using a
pressurized gas to check calibration. The Calibration Fixture (P/N 13-CFN) is available from the
factory and is designed to thread into the sensor gland in place of the existing nut so that it can be
used and then removed for later reuse. Simply install it in place of the existing nut that holds the
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sensor inside the gland located at the bottom of the enclosure. The fixture is equipped with inlet and
outlet quick connect fittings that all the user to connect a source of gas with a control valve to
maintain the sample flow to the inlet of the calibration fixture between 0.2 and 1 SCFH (0.1 and 0.5
LPM). Please refer to section 7.4 Optional Calibration Fixture below for more information.
7.2.3 Procedure For Checking Oxygen Calibration
To Perform a Routine Calibration Check
1. Make sure the instrument has been operating for a minimum of 5 minutes.
2. When measuring a fresh source of ambient air, the reading from the front panel should be at 20.9%,
±0.3% (this is the stated error specification of the Series 1300 Oxygen Deficiency Monitor).
3. If the monitor is reading within acceptable limits, no further action is required. If the monitor is not
reading within these limits, perform a calibration adjustment as described in the next section.
7.3 Calibration On Ambient Air
Important: If using a pressurized gas sample for calibration, please refer to section Optional
Calibration Fixture before proceeding.
To perform a calibration adjustment on ambient air:
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “CALIBRATE”. Under the “CALIBRATE” heading there is a
list of enabled sensors. Navigate to the appropriate sensor name and press the ENTER button to edit
the parameter. Adjust the value for 20.9% and press the ENTER button to store this parameter or
press the ESCAPE button to cancel all changes. Press the ENTER button a second time to confirm
the Calibration.
7.4 Optional Calibration Fixture
To perform a calibration check using a cylinder of gas containing 20.9% oxygen, use the Optional
Calibration Fixture (P/N 13-CFN). The Calibration Fixture attaches to the bottom of the oxygen sensor
mounting gland. Refer to section 16 APPENDIX E – Remote with Calibration Fixture on page 73 for a
view of the Calibration Fixture. Please note that the Optional Calibration Fixture works on both Local
and Remote sensors.
To Attach the Optional Calibration Fixture:
1. Temporarily remove and save the existing sensor retaining nut.
2. Replace the retaining nut with the Calibration Fixture.
3. Using 3/16” ID flex tubing, insert the tubing into one of the two quick-connect gas fittings. Make sure
that the tubing delivering the calibration gas is free of cracks, splits, and defects. Before connecting
the gas delivery tube to the inlet of the calibration fixture, place a flow meter in line.
Important:
4. Establish a sample flow rate of approximately 0.2 to 1 SCFH (0.1 to 0.5 LPM) before connecting the
tubing to the calibration fixture. This prevents inadvertent over pressurization that may permanently
damage the sensor (not covered under warranty).
Once the calibration gas is flowing to the sensor, allow the reading to come into equilibrium before
proceeding with any adjustments. The factory recommends that the calibration gas should be flowing
to the sensor for at least 10 minutes before the readings are monitored to determine if equilibrium
conditions have been established. When checking the accuracy of the Series 1300 Oxygen
Deficiency Monitor, Alpha Omega Instruments highly recommends using an oxygen concentration of
20.9%. In all cases, be sure to obtain a steady reading for at least 10 minutes before making
Series 1300 Oxygen Deficiency Monitor PAGE 49
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
adjustments to the calibration. Once equilibrium has been established, perform the procedure
described in section 7.3 Calibration on Ambient Air on page 49.
After using the Calibration Fixture, be sure to remove it and re-install the sensor retaining nut before
operating the monitor.
WARNING
WARNING! RE-CALIBRATING A SENSOR TO 20.9% OXYGEN WHILE EXPOSED
TO A VALUE OTHER THAN 20.9% WILL CAUSE THE INSTRUMENT TO PRODUCE
A FALSELY ACCEPTABLE READING DURING A POTENTIALLY DANGEROUS
OXYGEN DEFICIENT SITUATION.
7.5 NO Zero Adjustment
Alpha Omega Instrument’s electrochemical oxygen sensor has been zero adjusted at the factory. One
of the features associated with the oxygen sensor is its specificity for oxygen molecules. When no
oxygen is present in the sample gas, the output of the sensor is zero. As a result, zero calibration is
not recommended.
7.6 Change Oxygen Sensor Notice
If the oxygen sensor has been calibrated outside of a predetermined range, the instrument will display
the “Alert” screen which will show “ATTENTION!” “REPLACE Sensor Name” on the display. The
“Alert” screen will appear for about 15 seconds once every 30 minutes after the initial message. Use
either the LEFT or RIGHT button while on the “Home” screen to navigate to the “Alert” screen. This
message is used to inform the user that a calibration has been performed beyond a predetermined
value and is indicating that the output of the sensor has deteriorated to the point that the oxygen
sensor should be replaced. Be aware that this message will also appear if the sensor has been
accidentally calibrated to a value beyond a predetermined point. For example, if the oxygen sensor
was being exposed to a 90% gas and was accidentally calibrated to a value of 20%, the “REPLACE
Sensor Name” alert will appear, simply recalibrating the oxygen sensor to the correct value will clear
the alert. A typical example of a deteriorated sensor is when the oxygen sensor is displaying a value
of 12% when exposed to a 30% gas. A calibration to 30% at this point will show the “REPLACE
Sensor Name” alert.
7.6.1 Replacing A Sensor
Follow the procedure below for properly replacing an oxygen sensor.
1. While the instrument is powered, disconnect the sensor from the instrument. From the main
electronics enclosure, simply locate the sensors cable and disconnect near the left side wall tie
down. For a remote sensor, locate the remote electronics board and simply disconnect the sensor
cable from the printed circuit board.
2. Disconnecting the sensor will cause the instrument to alert the user in the form of an “Alert” screen
message. Example:
!! W A R N I N G !!
DANGEROUS LOW O2 LVL
REMOTE 1 SENSOR LOW!
SEE MANUAL'WARNINGS'
Under normal operation, this warning would indicate a low oxygen value, however when removing a
sensor, simply ignore this message and press the Enter button to go to the Main Menu to disable
the sensor by proceeding to the “Enabled?” parameter in the “SENSOR SETUP” menu. Press the
PAGE 50 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
ENTER button to edit this parameter. Use the UP or DOWN buttons to change this parameter to
“NO” and Press the ENTER button to accept the new value. Press the ENTER button a second time
to confirm the change or press the ESCAPE button to cancel all changes. Pressing ESCAPE will
cause the instrument to continue the alert until the ORIGINAL sensor is placed back on. DO NOT
install a new sensor while the instrument is in the alert mode as this will bypass the
automatic sensor configuration. ALWAYS DISABLE AN OLD SENSOR BEFORE REPLACING!
3. Unscrew the sensor mounting gland in a counter clockwise direction to loosen it, this will allow the
sensor to be removed from the top side (inside of the enclosure) of the mounting gland.
4. Remove the old sensor and replace with a new one.
5. Slide the sensor inside the mounting gland from the top side of the gland (inside of the enclosure).
6. Before connecting the sensor's cable, secure the mounting nut by turning it in a clockwise direction.
The sensor may rotate until tight. Make sure the nut is tight so the sensor does not slip down. The
top of the sensor should be flush with the top of the inside cable gland nut.
7. Reconnect the sensor cable to either the local cable connector or the remote electronics board
connector.
8. Replace the cover and wait for the sensor(s) timer(s) to count down. When finished the sensor(s)
will be ready for use and should read 20.9% oxygen. No calibration is necessary if installed in a
location with fresh ambient air.
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USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
8 Battery Backup
The Battery Backup option is designed to power the Series 1300 Oxygen Deficiency Monitor in the
event that power is temporarily interrupted. To accomplish this, the instrument is fitted with a battery
pack and a battery monitoring printed circuit board. This is a factory installed option.
WARNING
BATTERIES ARE CHARGED AND NOT CONNECTED BEFORE LEAVING THE
FACTORY. AFTER ALL WIRING IS COMPLETED AND JUST PRIOR TO APPLYING
MAIN POWER, PLEASE OPEN THE COVER AND CONNECT THE BATTERY
CONNECTOR BEFORE USE. THE INSTRUMENT SHOULD TURN ON AND START
TO INITIALIZE. APPLY THE MAIN POWER TO INSURE THE BATTERY REMAINS
CHARGED.
The battery pack used for this option utilizes Nickel Metal Hydride technology and is kept charged via an
internal trickle charge circuit. This circuit will continue to charge the battery while the main power source is
available.
Should the main source of power be removed, the Series 1300 Oxygen Deficiency Monitor will
continue to run on the remaining battery backup power until such time the battery pack cannot
adequately power the instrument. At this time, the Series 1300 Oxygen Deficiency Monitor will initiate
a temporary “HALT” condition.
8.1 Battery Backup HALT
The “HALT” condition is the time just before the Series 1300 Oxygen Deficiency Monitor will
automatically shut down the instrument to avoid over-discharging the battery pack. During the “HALT”
condition, the Series 1300 Oxygen Deficiency Monitor will display a “HALT” screen as shown below.
Vbat: 8.572 <= 8.9V
H A L T !
Power Status:
Check Main Power
HALT Condition (<8.6V)
No user entry will be accepted in this condition. The “HALT” screen will remain visible until the power
reaches the point where the instrument must be shut down OR either the main source of power is
available again or the battery recovers past 8.9V for some reason. If the main source of power
becomes available before the automatic shut down, the instrument will automatically revert to normal
operation and begin charging the battery.
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ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
8.2 Battery Backup Time
The battery backup time is dependent on the system configuration. Items which will decrease the
battery backup time include:
1. Active alarms that energize any of the four selectable alarm relays.
2. Active alarms that energize any horn and strobes.
3. Connection of any 4-20mA process outputs.
CAUTION
CHARGE THE BATTERIES FOR AT LEAST 16 HOURS BEFORE USE TO INSURE
THE MAXIMUM OPERATION TIME. BATTERIES ARE DISCONNECTED AT THE
FACTORY BEFORE SHIPPING.
If main power were to fail, the monitor will continue to operate for a minimum of 30 minutes if properly charged
for 16 hours. This includes all relays energized, both process outputs at their maximum outputs, and all four (4)
horn and strobes energized at their highest rated outputs.
WARNING
THE SERIES 1300 OXYGEN DEFICIENCY MONITOR WILL POWER UP TO FOUR
(4) ALPHA OMEGA INSTRUMENTS SUPPLIED HORN AND STROBES. ANY
EXTERNALLY POWERED ALARM DEVICES (NOT DIRECTLY POWERED BY THE
SERIES 1300) WILL NOT BE BACKED UP BY THE SERIES 1300 BATTERY
BACKUP.
NOTE
MINIMUM OPERATING TIME IS BASED ON A BATTERY THAT HAS BEEN
SUBJECT TO A MINIMUM 16 HOUR CHARGE TIME.
Minimum operating times can be much lower if not fully charged. See Table 18 - Battery Backup
Minimum Operating Times below for actual worst case measured values.
CHARGE TIME MINIMUM OPERATING TIME
4 Hours 25 minutes
8 Hours 35 minutes
16 Hours 40 minutes
16 Hours 6 Hours (No Alarms)
Table 18 - Battery Backup Minimum Operating Times
Series 1300 Oxygen Deficiency Monitor PAGE 53
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
8.3 Battery Status Screen
When the battery backup option is factory installed there are various messages that will display on
the “Alert” screen during certain events.
1. When AC power to the instrument is disconnected or lost due to a power outage the “Alert” screen
will read “MAIN POWER LOST” to inform the user that the instrument is now running under battery
power. Pressing the ENTER button while on the “Alert” screen will display the current battery
voltage level, pressing the ESCAPE button will exit back to the “Home” screen. The “Alert” screen
will show for five (5) seconds seconds at a time every fifteen (15) seconds.
2. When the battery voltage has dropped to a critical level the instrument will enter into a “HALT”
condition in which it will no longer operate, the message “HALT” will be displayed on the screen and
an indication of critical voltage level. The instrument will shut down shortly after this message is
displayed.
3. When the instrument is powered from AC power and the battery is disconnected or the voltage is
below a critical level the “Alert” screen will read “CHECK BATTERY”. Pressing the ENTER button
while on the “Alert” screen will display the “Battery Status” screen. The “Battery Status“ screen will
show the current battery voltage level along with the charging status of the battery. Pressing the
ESCAPE button will exit back to the “Home” screen. The “Alert” screen will show for 30 seconds at
a time every 60 seconds until the specific alert is addressed.
The Battery Status Screen can have the following informational screens.
Battery Status 1.9V
Connect Battery
Power Status:
12.20V
No Battery detected
Battery Status 3.9V
BAD BATTERY
Power Status:
11.73V
Critically Low Battery (4 to 6V)
Battery Status 9.0V
Charging
Power Status:
12.41V
Powered and Charging
Table 19 - Battery Status Screens
Battery Status 8.8V
Plug in AC NOW!
Power Status:
USING BATTERY
Battery is very low and is about to
halt the system (8.6 to 8.9V)
Battery Status
Low Battery
Power Status:
9.25V
Low Battery (<9.5V)
Battery Status 9.6V
OK
Power Status:
12.13V
On Battery Power (9.5 to 11.0V)
To enter the “Battery Status” Screen, either press the arrow buttons until the “Battery Status” Screen appears
or press the ENTER button when on the “Alert” Screen during a battery alert message.
PAGE 54 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
9 Warnings
This section discusses some of the circumstances that may be present and must be addressed
before making a decision when using the Series 1300 Oxygen Deficiency Monitor. Please read the
following sections carefully to insure that the monitor is being used properly and safely.
9.1 Alarm Warnings
Each alarm warning is unique, but the most common alarm for an Oxygen Deficiency Monitor monitor
is the “Low Alarm” setting. When this alarm is set properly, the user or users are alerted to a
deficiency in the amount of oxygen in the immediate area of the sensor. This may indicate an unsafe
condition for the user and should be taken seriously as injury or death could result if not properly
handled.
ALARM 1 (Active)
Active if Sensor 1
less than/equal to:
19.0% Non-Latching
Low Alarm
Scenarios abound but when an alarm sounds, it is prudent to evacuate the area and assess the
situation.
Same this is true for a “High Alarm”. Even though there is sufficient oxygen to breath, the oxygen
levels may have gone over the maximum reading of the monitor and could result in a highly
flammable situation.
ALARM 1 (Inactive)
Active if Sensor 1
greater than:
22.0% Non-Latching
High Alarm
Most dangerous of all is the case where ALL alarms are either disabled because of bogus settings, or
worse, none have been configured properly for a sensor as shown below.
ALARM 1 (Inactive)
No Sensor Configured
Press Enter to
configure this alarm
Disabled Alarm (No Sensor selected)
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9.2 Sensor Removal Warnings
There are three scenarios when the Series 1300 Oxygen Deficiency Monitor will alert to dangerous
low oxygen levels.
9.2.1 Scenario 1 – Dangerous Low Oxygen Level
This scenario is indicating a dangerous low oxygen level. Take appropriate action.
9.2.2 Scenario 2 – Disconnected Oxygen Sensor
If the alert has been determined not to be low oxygen event, please verify that the alert is a result of a
disconnected oxygen sensor.
• Do not enter the area in question without checking the oxygen level (verify oxygen level
with a separate working oxygen monitor).
• Physically check the oxygen sensor as this alert could be a result from damage to the sensor,
a potential electrical problem (example would be a damaged cable), or a non-functioning
sensor.
• If scenario 1 & 2 have been verified not to be the cause of the alert, more likely the user is
removing a sensor.
!! W A R N I N G !!
DANGEROUS LOW O2 LVL
Remote 1 Sensor LOW!
SEE MANUAL'WARNINGS'
9.3 Horn And Strobe Warnings
There are two warnings associated with the horn and strobe.
9.3.1 Horn And Strobe Removal
A T T E N T I O N!
H&S 2 REMOVED!
Press Enter to edit
Esc ignores for now
Warning, disabling a horn and strobe could lead to an unsafe condition.
9.3.2 Horn And Strobe Address Change
The following screen should never appear. This message indicates that the address for the horn and
strobe has changed while powered. It is imperative to check the installation and configuration of all
horn and strobes to determine the cause of this failure.
A T T E N T I O N!
H&S ADDRESS CHG
WARNING! ADDRESS
CHANGE DETECTED!
Pressing Enter here will not do anything.
WARNING
CHANGING A HORN AND STROBE ADDRESS WHILE POWERED COULD LEAD
TO AN UNSAFE CONDITION.
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ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
10 Maintenance and Troubleshooting
10.1 User Maintenance
The Series 1300 Oxygen Deficiency Monitor requires minimum user maintenance. The user should
check that the calibration of the monitor is in accordance with established calibration protocols. If no
protocol exists, Alpha Omega Instruments recommends that the monitor be calibrated every 3-6
months.
10.2 Serviceable Items
End user serviceable items located inside the chassis include the oxygen sensor and the optional
battery pack used for the battery back-up option.
For Battery replacement/installation, please see APPENDIX G – Battery Backup on page 78 for more
information.
RISK OF SHOCK
WARNING: ELECTRICAL SHOCK HAZARD: DANGEROUS VOLTAGES ARE
PRESENT WITHIN THE INSTRUMENT. REMOVE ALL POWER SOURCES WHEN
INSTALLING OR REMOVING CONNECTIONS AND WHEN PERFORMING ANY
WORK INSIDE THE INSTRUMENT ENCLOSURE.
10.3 System Messages
The Series 1300 Oxygen Deficiency Monitor will store a system message in memory in the event that
something happened or there was a problem like a syntax error on the RS interface. This can be
useful to diagnose any problems by checking that there are no known problems.
The system messages that can appear in the system menu are listed in Table 20. Some messages
will respond with a hexadecimal number and can be relayed to the factory for further help.
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Message Description Information
M:ias Invalid annunciator state Ignored and corrected, notify factory
M:dit Display, invalid type Ignored, shows error on display. Notify factory
M:ece Elevation calibration error
M:cpe Cursor position error Corrected automatically
M:ime Initialization memory error Memory is restored from non-volatile copy, notify factory
M:u#l Unit number line undefined Ignored, notify factory
M:u#t Unit number token undefined Ignored, notify factory
M:sas Serial addressing syntax
M:sbo Serial buffer over-run
M:srs Serial read syntax error Check format, wrong number of characters
M:sws Serial write syntax error Check format, wrong number of characters
M:sic Serial, invalid char
M:sit Serial, Invalid token Command Ignored, check syntax and data address
Verify proper calibration before using instrument (no change
to calibration)
Command Ignored, check addressing syntax
X: or XX: is valid where X is number from 1 to 32
Automatically recovers by clearing buffer. Limit input to 80
characters.
Command Ignored, check data entry for errors or strange
characters (Allowed characters: 0-9, a-z, A-Z, otherwise
ASCII decimal codes 8 (Backspace), 10 (Line Feed), 13
(Carriage Return), 32 to 127 (20H to 7FH).
M:swt Serial write type invalid Command Ignored, check syntax and data address
M:ak1 Horn and Strobe comm. Check wiring and/or addressing on Horn and Strobes
M:ak2 Horn and Strobe comm. Check wiring and/or addressing on Horn and Strobes
M:dll Data line low Check wiring of Horn and Strobes
M:nnf Unknown flag Ignored
M:chi Erroneous high calibration flag Ignored
M:fbt Menu initialization error Ignored, notify factory
M:drp Default running page error # Ignored and corrected, notify factory
M:ndf Invalid default flag Ignored, notify factory
M:rps Replace Sensor Numbers Informational only
M:ash Horn and Strobe Comm. Check wiring to Horn and Strobes
M:mem Memory mismatch Contact Factory
M:pwd User code mismatch Ignored
M:bus Bad serial bus request Contact Factory
Table 20 - System Messages
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ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
11 Serial Communications
NOTE: For safety reasons the instrument cannot be calibrated using serial communications.
The serial communications option allows complete control of the Series 1300 Oxygen Deficiency
Monitor via the serial port by means of a simple protocol that can be used either manually or through
the use of programming. Manually entering data is very easy and follows simple rules. Please see
section 11.5 Standard Commands below for more information.
11.1 Baud Rates
RS-232/RS-485 Serial communication baud rates are 115200, 57600 (default), 38400, 28800, 19200,
9600, 4800, and 2400.
11.1.1 Setting The Baud Rate
Enter into the “Main Menu” by pressing the ENTER button while on the "Home" screen. Navigate the
menu until you reach the menu heading “Misc Settings”. Under the “Misc Settings” heading there is a
list of parameters. Navigate to the “Baud Rate?” parameter and press the ENTER button to edit the
parameter. Use the UP and DOWN buttons to change this parameter to any of the available baud
rates listed above. Press the ENTER button to save this parameter or press the ESCAPE button to
cancel all changes. If the parameter value was changed, press the ENTER button to confirm changes
or press the ESCAPE button to cancel all changes.
Note: The baud rate will change immediately, therefore any communications equipment
connected to the RS232/485 output should also be set accordingly to continue communicating
correctly and avoid garbled data.
11.2 Line Endings
Under the same menu heading as above, the user has the option to change the default line ending for
all communications via RS232 or RS485. The factory default is set for a carriage return and a line
feed (CR/LF). This default should work in almost all cases. If the need arise to change the line ending
because of an incompatibility with another system that expects different line endings, simply select
the desired line ending.
11.3 RS Echo
This option simply echos everything received at the serial port. This may be helpful if entering values
manually or if it is necessary to see comments that were sent as the instrument strips out any
comments after a semi-colon.
11.4 Addressing
Addressing refers to a “multi-drop” scenario where more than one instrument is connected to a bus. This can
be RS485 or a serial server. With more than one instrument on the same bus, it becomes necessary to
address the individual instruments specifically to avoid having more than one instrument respond to a
command that is sent to every instrument. By setting Addressing to ON simply tells the instrument to only
respond to commands if the specific address chosen is prefixed to the command. The address is actually just a
number from 1 to 32 and is available to change when the Addressing option is set to ON. If set to OFF, then no
option to change the address is available.
To enable addressing for the instrument, enter into the “Main Menu” by pressing the ENTER button while on
the "Home" screen. Navigate the menu until you reach the menu heading “Miscellaneous”. Under the
“Miscellaneous” heading there is a list of parameters. Navigate to the “Addressing” parameter and press the
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USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
ENTER button to edit the parameter. Use the UP and DOWN buttons to change this parameter to either “YES”
or “NO”. Press the ENTER button to save this parameter or press the ESCAPE button to cancel all changes. If
the parameter value was changed, press the ENTER button to confirm changes or press the ESCAPE button
to cancel all changes.
11.4.1 Address
With addressing enabled the option to change the instrument's address becomes available just below the
“Addressing” option. Navigate to the “Address” parameter and press the ENTER button to edit the parameter.
Use the UP and DOWN buttons to change this parameter value from 1 to 32. Press the ENTER button to save
this parameter or press the ESCAPE button to cancel all changes. If the parameter value was changed, press
the ENTER button to confirm changes or press the ESCAPE button to cancel all changes.
Communicating with an instrument with addressing turned on requires the prefix of “#[#]:” where #[#] is a
number between 1 and 32 representing the instrument's address.
For example: to communicate with an instrument that has an address set to “15”, the command to read the
name of Sensor #1 would be:
15:*14081
The returned information should read the programmed name. In this case “Sensor1”:
14081='Sensor1'
NOTE: Instruments with addressing disabled will respond to commands without the addressing prefix.
When addressing is disabled, only one instrument should be connected to the communications bus.
11.5 Standard Commands
There are only 2 commands for reading and writing all data to the Series 1300 Oxygen Deficiency
Monitor. It is recommended to use a serial terminal program to easily interact with the monitor. Some
programs available for free are RealTerm (www.realterm.sourceforge.net), Termite
(http://www.compuphase.com/software_termite.htm), and CoolTerm (http://freeware.the-meiers.org/).
Please note that these programs are only listed here as an optional free method to talk to the monitor.
Alpha Omega Instruments Corp. has no affiliation with any of the software authors. There is no
guarantee that the programs listed will be available or operate in accordance with desired functions.
Alpha Omega Instruments Corp. offers NO WARRANTY and strongly suggests that the end user
determine an adequate communications method and test it accordingly to their specific installation
requirement.
11.5.1 Read
The Read command is the “*” symbol or asterisk. To read a value simply type the command followed
by the parameter's address and press <ENTER> on the keyboard.
The syntax should look like the following:
*Address
For example, to read the “Passcode” to see if the menu is available, enter the following command:
*13086;Read the Passcode (Note: the semi-colon denotes an optional comment)
The returned information should read:
13086='1300'
Please refer to the following pages for a list of parameters and acceptable data that can be read from
and written to the monitor. Specifically the table on the next page.
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11.5.2 Write
The Write command is the “at” symbol or “@”. To write a value simply type the command followed by
the parameter's address then the “=” symbol and the value for the parameter and press <ENTER> on
the keyboard.
The syntax should look like the following:
@Address=Value
For example, to change the name of Sensor #1 to “LAB #1”, enter the following command:
@14081=LAB #1
11.6 RS485
RS485 requires that each instrument only respond to commands that are specific to that particular
instrument. Therefore it is necessary to “address” them to avoid having responses coming from
multiple instruments on the same RS485 bus. Note: RS232 can also be used with the following
commands but must be connected by means of a special serial server that isolates the instruments to
eliminate the restrictions in the RS232 protocol.
11.7 RS Security
There is a bit documented in the Variable Registers Table below that when set to '1' will disallow any
RS communications and when addressing is OFF will prompt the user with the string “Secured”. This
is useful to insure that accidental RS communications do not affect the monitor after it has been
completely setup. To exit this mode, simply set the corresponding bit at the address documented
below to '0'. The monitor will respond if addressing is OFF with a string “UN-Secured”.
11.8 Variable Registers Table
Address Function Data Type Parameter Description Notes
12545 R Bit (0-1) Sensor 1 Enabled (Remote 1)
12546 R Bit (0-1) Sensor 2 Enabled (Remote 2)
12547 R Bit (0-1) Sensor 3 Enabled (Local)
12557 R/W Bit (0-1) Alarm 1 Type 0 = Low, 1 = High
12558 R/W Bit (0-1) Alarm 1 Latching 0 = NON-Latching, 1 = Latching
12559 R/W Bit (0-1) Alarm 2 Type 0 = Low, 1 = High
12560 R/W Bit (0-1) Alarm 2 Latching 0 = NON-Latching, 1 = Latching
12561 R/W Bit (0-1) Alarm 3 Type 0 = Low, 1 = High
12562 R/W Bit (0-1) Alarm 3 Latching 0 = NON-Latching, 1 = Latching
12563 R/W Bit (0-1) Alarm 4 Type 0 = Low, 1 = High
12564 R/W Bit (0-1) Alarm 4 Latching 0 = NON-Latching, 1 = Latching
12565 R/W Bit (0-1) Alarm 5 Type 0 = Low, 1 = High
12566 R/W Bit (0-1) Alarm 5 Latching 0 = NON-Latching, 1 = Latching
12567 R/W Bit (0-1) Alarm 6 Type 0 = Low, 1 = High
12568 R/W Bit (0-1) Alarm 6 Latching 0 = NON-Latching, 1 = Latching
12569 R/W Bit (0-1) Alarm 7 Type 0 = Low, 1 = High
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12570 R/W Bit (0-1) Alarm 7 Latching 0 = NON-Latching, 1 = Latching
12571 R/W Bit (0-1) Alarm 8 Type 0 = Low, 1 = High
12572 R/W Bit (0-1) Alarm 8 Latching 0 = NON-Latching, 1 = Latching
12573 R/W Bit (0-1) Alarm 9 Type 0 = Low, 1 = High
12574 R/W Bit (0-1) Alarm 9 Latching 0 = NON-Latching, 1 = Latching
12575 R/W Bit (0-1) Relay 1 Fail-safe 0 = NON-Failsafe, 1 = Failsafe
12576 R/W Bit (0-1) Relay 2 Fail-safe 0 = NON-Failsafe, 1 = Failsafe
12577 R/W Bit (0-1) Relay 3 Fail-safe 0 = NON-Failsafe, 1 = Failsafe
12578 R/W Bit (0-1) Relay 4 Fail-safe 0 = NON-Failsafe, 1 = Failsafe
12582 R/W Bit (0-1) First DAC offset
12583 R/W Bit (0-1) Second DAC offset
12587 R/W Bit (0-1) Enable Sensor 1 for logging 0 = Not Enabled, 1 = Enabled to log
12588 R/W Bit (0-1) Enable Sensor 2 for logging 0 = Not Enabled, 1 = Enabled to log
12589 R/W Bit (0-1) Enable Sensor 3 for logging 0 = Not Enabled, 1 = Enabled to log
12590 R/W Bit (0-1) Enable Logger Time-stamp 0 = OFF, 1 = Enables time-stamp
12591 R/W Bit (0-1) Enable Security 0=OFF, 1=ON (ignore all)
12594 R/W Bit (0-1) Enable multi-drop (serial addressing) 0 = OFF, 1 = Addressing enabled
0=0mA
1=4mA
0=0mA
1=4mA
12801 R/W Byte (0-255) Select Sensor for Alarm 1
12802 R/W Byte (0-255) Select Sensor for Alarm 2
12803 R/W Byte (0-255) Select Sensor for Alarm 3
12804 R/W Byte (0-255) Select Sensor for Alarm 4
12805 R/W Byte (0-255) Select Sensor for Alarm 5
12806 R/W Byte (0-255) Select Sensor for Alarm 6
12807 R/W Byte (0-255) Select Sensor for Alarm 7
12808 R/W Byte (0-255) Select Sensor for Alarm 8
12809 R/W Byte (0-255) Select Sensor for Alarm 9
12818 R/W Byte (0-255) Select Sensor for Output 1
12819 R/W Byte (0-255) Select Sensor for Output 2
12820 R/W Byte (0-255) Set Address from 1 to 32
12821 R Byte (0-255) Sensors needing replacement bits bit0=#1, bit1=#2, and bit2=#3
12822 R/W Byte (0-255) Enter Seconds for Logger interval 0 to 60
12823 R/W Byte (0-255) Set Year 20XX 0 to 99
12824 R/W Byte (0-255) Set Month 0 to 12
12825 R/W Byte (0-255) Set Date (Day of Month) 0 to 31
0=OFF, 1=Sensor1, 2=Sensor2,
3=Sensor3
0=OFF, 1=Sensor1, 2=Sensor2,
3=Sensor3
PAGE 62 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
12831 R Byte (0-255) First 3 bits signify Sensors 1 to 3
12832 R Byte (0-255) First 3 bits signify Sensors 1 to 3
13086 R/W Integer (0-65535) Set to “1300” to access menu
13087 R/W Integer (0-65535) Set Clock in minutes (24 hour time) Hours*60+Minutes
13100 R/W Integer (0-65535) Set Baud Rate See Manual
0=Continuous
13101 R/W Integer (0-65535) Set or Read Logger Mode
13102 R/W Integer (0-65535) Set or Read Logger State
13103 R/W Integer (0-65535) Set or Read default Main Screen 0 or 1
13106 R/W Integer (0-65535) Set desired Line Ending
13844 R/W float Set Alarm 1 Trip point
13845 R/W float Set Alarm 2 Trip point
13846 R/W float Set Alarm 3 Trip point
13847 R/W float Set Alarm 4 Trip point
13848 R/W float Set Alarm 5 Trip point
13849 R/W float Set Alarm 6 Trip point
13850 R/W float Set Alarm 7 Trip point
13851 R/W float Set Alarm 8 Trip point
1=Start/Stop
2=Live
0=Stop
1=Print
2=Run
0=CR/LF
1=
2=
3=
13852 R/W float Set Alarm 9 Trip point
13853 R/W float Set Max DAC output 1 0 to 40
13854 R/W float Set Min DAC output 1 0 to 40
13855 R/W float Set Max DAC output 2 0 to 40
13856 R/W float Set Min DAC output 2 0 to 40
14081 R/W string Set Sensor 1 Name
14082 R/W string Set Sensor 2 Name
14083 R/W string Set Sensor 3 Name
14098 R/W string Set Horn and Strobe 1 Name
14099 R/W string Set Horn and Strobe 2 Name
14100 R/W string Set Horn and Strobe 3 Name
14101 R/W string Set Horn and Strobe 4 Name
14102 R/W string Set Horn and Strobe 5 Name
14103 R/W string Set Horn and Strobe 6 Name
14104 R/W string Set Horn and Strobe 7 Name
14105 R/W string Set Horn and Strobe 8 Name
Series 1300 Oxygen Deficiency Monitor PAGE 63
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
14123 R string Product
14125 R string Serial Number of Sensors 13-XXXX, 13-XXXX, 13-XXXX
14127 R string Serial Number of PCB
14129 R string Factory String Not Available
14131 R string Factory Date
14133 R string Factory Time
See section 4.8.11 System
14137 R/W string
Enter User Code, Special Use Only
14139 R string Logger Start Time
14140 R string Logger Max Time
14141 R string Logger End Time
14593 R/W long int (32 bits)
14594 R/W long int (32 bits) Currently Not Available
14595 R/W long int (32 bits) Currently Not Available
14596 R/W long int (32 bits) Currently Not Available
14597 R/W long int (32 bits) Currently Not Available
14598 R/W long int (32 bits) Currently Not Available
14599 R/W long int (32 bits) Currently Not Available
14600 R/W long int (32 bits) Currently Not Available
14601 R/W long int (32 bits) Currently Not Available
Factory Alarm Flags
Information (“SYSTEM INFO”) on
page 44
Currently Not Available
16641 R Bit (0-1)
16642 R Bit (0-1)
16643 R Bit (0-1)
16644 R Bit (0-1)
16645 R Bit (0-1)
16646 R Bit (0-1)
16647 R Bit (0-1)
16648 R Bit (0-1)
16649 R Bit (0-1)
16669 R/W Bit (0-1) Print front screen on terminal 1=Print screen
16670 R/W Bit (0-1)
17921 R float Oxygen Value for Sensor 1
17922 R float Oxygen Value for Sensor 2
17923 R float Oxygen Value for Sensor 3
18179 R string System Message String See Manual
Alarm Status 1 thru 9
0=No Echo
1=Echo characters typed at terminal
0 = NOT active
1 = ACTIVE
Does not work in Addressing Mode
Table 21 - Variable Registers
PAGE 64 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
11.9 RS Data Logger
When activated the built in data logger will log an oxygen level range of 0 to 25% for all chosen
sensors. The data logger interval can be set for any value between 1 and 60 seconds in 1 second
increments. Estimated available logging time is shown in the table below.
Number of
Sensors
1 18 hours 45 days
2 9 hours 22 days
3 6 hours 15 days
Interval of
1 second
Interval of 60
seconds
Table 22 - Logger Time / Interval Estimates
The data logger can run in 3 different modes. “Start/Stop”, “Continuous”, and “Live”.
1. Start/Stop mode will log the sensor readings until the memory is full.
2. Continuous mode will log the sensor readings while continuously over-writing the oldest data
stored in memory.
3. Live mode outputs the sensor readings to the customers terminal at the set interval. The
previous history can also be printed.
Setting up and accessing the data logger is done through the RS232 communications. Please
reference the table below for commands.
Command Name Type Options Description
@12587=b Tb_LOGGER_SENSOR1_ENABLED bit 0,1 (NO, YES) Log sensor 1
@12588=b Tb_LOGGER_SENSOR2_ENABLED bit 0,1 (OFF, ON) Log sensor 2
@12589=b Tb_LOGGER_SENSOR3_ENABLED bit 0,1 (OFF, ON) Log sensor 3
@13101=B TE_LOGGER_STATE Byte Stop (0), Print (1), Run (2) Print Logger, automatically stops if running
@13100=B TE_LOGGER_MODE Byte Continuous (0), Start/Stop (1),
Live (2)
@12822=BB TB_LOGGER_SECONDS_INTERVAL Byte 0 to 60 Set Sample Interval in seconds
@12590=b Tb_LOGGER_ENABLE_TIMESTAMP bit Turn Time stamp On/Off
Set to Continuous Mode
Table 23 - Logger RS Commands
The data is output in a format that is compatible with “comma separated values” or “CSV” file format.
To create a graph of the data, it highly recommended to use plot.ly (a website) that allows loading a
CSV file and plotting the data “in the cloud”. The data is also easily imported to any program that
supports CSV file formats. Examples include Microsoft Excel, LibreOffice Calc, Gnumeric, and
DataPlot software programs. Note that the latter DataPlot program handles the data much faster than
the spreadsheets due to the large amount of data that might be logged over a long period of time.
Once imported the data can be opened and graphed according to the specific programs instructions.
Logged data will have a time stamp (if enabled in menu) and the oxygen values for all oxygen
sensors selected.
Series 1300 Oxygen Deficiency Monitor PAGE 65
5.10in
129.5mm
8.97in
227.8mm
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
12 APPENDIX A –
Main Enclosure Template
NOTE! Please verify both dimensions before using as template as changes to the
scale may occur during printing or copying.
Figure 30 - Main Enclosure Template
PAGE 66 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
4.17in
105.9mm
4.17in
105.9mm
13 APPENDIX B – Remote Enclosure Template
NOTE! Please verify both dimensions before using as template as changes may occur during printing or copying.
Figure 31 - Remote Enclosure Template
Series 1300 Oxygen Deficiency Monitor PAGE 67
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
14 APPENDIX C – Terminal Block Reference
The first three (3) connectors inside on the left are designated as the power input connectors. See
below for assignments for AC or DC connections.
NOTE: Power must be specified at the time of order.
14.1 Standard AC Connections
The Series 1300 can be powered from an AC signal of 90 to 265VAC 50/60Hz. Connect to the AC
power terminal block as follows.
Terminal
Block TB1
L AC Line
G AC Chassis Ground
N AC Neutral
Connection
Optional DC Connections:
The Series 1300 can be optionally powered from a nominal 24V (18-36V) DC signal. Connect to the
DC power terminal block as follows.
Terminal
Block TB1
+ DC Positive
G Chassis Ground
- DC Return
Connection
14.2 Remote Sensor And Horn And Strobe Connections
Terminal
Block TB1
1 Cable Shield Shield of Remote cable
2 Remote Sensor 1 Positive Remote Electronics Terminal VIN
3 Remote Sensor 1 Return Remote Electronics Terminal VOUT
4 Cable Shield Shield of Remote cable
5 Remote Sensor 2 Positive Remote Electronics Terminal VIN
6 Remote Sensor 2 Return Remote Electronics Terminal VOUT
7 Cable Shield NC
8 Cable Shield Shield of horn and strobe cable
9 horn and strobe Positive horn and strobe Terminal V+
10 horn and strobe Data horn and strobe Terminal DAT
11 horn and strobe Return horn and strobe Terminal GND
Signal Connects to:
PAGE 68 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
14.3 PCB Connectors
TB2, TB3, and TB4 are used for process outputs and relay contacts.
Terminal
Block Pin Signal Description
1
Analog
2 Positive
Output 1
TB2
Terminal
Block Pin Signal Description
TB3
TB4
3 Shield
4
Analog
5 Positive
Output 2
6 Shield
1
Relay 1
2 Common Contact
3 Normally Open Contact
4
Relay 2
5 Common Contact
6 Normally Open Contact
1
Relay 3
2 Common Contact
3 Normally Open Contact
4
Relay 4
5 Common Contact
6 Normally Open Contact
Return
Return
Normally Closed Contact
Normally Closed Contact
Normally Closed Contact
Normally Closed Contact
Series 1300 Oxygen Deficiency Monitor PAGE 69
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
Sound Switch
Settings
EXTERNAL
POWER
15 APPENDIX D – Horn and Strobe(s)
15.1 Externally Powered Horn And Strobe(s)
For powering horn and strobe(s) from an external DC power source please follow these instructions:
1. If wiring more than four (4) horn and strobes then choose which horn and strobes will be powered
externally. Four (4) can be powered directly from the main electronics using the standard power
supply.
2. Wire the external power supply positive (+) to J5, pin 1 labeled “EXT PWR +”.
3. Wire the external power supply negative (-) to J5, pin 2 labeled “EXT PWR -”.
Figure 32 - Horn And Strobe PCB Wiring Diagram
15.2 Horn And Strobe Sound Switch Settings
The “Sound Switch Settings” switch bank is located beneath the Horn and Strobe PCB as shown in
Figure 32 - Horn and Strobe PCB Wiring Diagram above. There are two variations as shown below:
Please note that the first switch is the HORN VOLUME and defaults to HIGH. The other five (5)
switches control the tones as listed in Table 24 - Horn and Strobe Sound Switch Settings.
PAGE 70 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
15.3 Horn And Strobe Tone Settings
Shown below are the switch selectable tones on the horn and strobe “Sound Switch Settings” switch
bank shown in Figure 32 - Horn and Strobe PCB Wiring Diagram.
Table 24 - Horn And Strobe Sound Switch Settings
Series 1300 Oxygen Deficiency Monitor PAGE 71
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
15.4 Horn And Strobe Mechanical Details
Shown below are the mechanical details of the horn and strobe enclosure.
Figure 33 - Horn And Strobe Mechanical Details
PAGE 72 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
15.5 Horn And Strobe PCB Detail
Figure 34 - Horn And Strobe PCB Detail
16 APPENDIX E – Remote with Calibration Fixture
Calibration Fixture shown attached to remote sensor enclosure.
Figure 35 - Remote Oxygen Sensor Enclosure & Optional Calibration Fixture
Series 1300 Oxygen Deficiency Monitor PAGE 73
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
17 APPENDIX F – Oxygen Sensor Material Safety Data Sheet
SECTION I - PRODUCT IDENTIFICATION
Manufacturer's Name: Alpha Omega Instruments Corp
Address 40 Albion Rd. Suite 100.
Telephone 401-333-8580
Date Prepared September 3, 1998
Date Revised April 12, 2001
Trade Name 1SEN
Description Weak acidic solution encapsulated in plastic housing.
SECTION II - HAZARDOUS INGREDIENTS OF SOLUTION
Lead Acetate, Trihydrate CAS # 6080-56-4
OSHA/PEL 0.05 mg/m3
ACGIH/TLV 0.15 mg/m3
TLV and PEL are for lead, inorganic dusts and fumes, as Pb
Note: Lead has been reported as causing cancer in laboratory animals, exercise due care.
Acetic Acid, Glacial CAS # 64-19-7
OSHA/PEL 10 PPM
ACGIH/TLV 10 PPM
NOTE: TLV and PEL are for concentrated (90% - 100%) Acidic Acid, actual solution is less than 50%.
Lead CAS # 7439-92-1
OSHA/PEL 0.03mg/m3
SECTION III - PHYSICAL & CHEMICAL CHARACTERISTICS
Boiling Point: Not Available Specific Gravity: Not Available
Vapor Pressure: Not Available Vapor Density: Not Available
Evaporation Rate: Not Available Physical State: Liquid
Melting Point: Not Available PH: 3.5 – 7.0 Flash Point: > 100 degrees C
Appearance & Odor: Colorless Liquid: Vinegar like odor
Extinguisher Media: Use water spray, alcohol foam, dry chemical or carbon dioxide
Special Fire Fighting Procedures: Respiratory protection should be used to avoid breathing fumes.
Lead acetate decomposes at boiling point and toxic gases are produced.
Unusual Fire & Explosion Hazards:
Acetic acid vapors may flow along surfaces to distant ignition sources and
flash back. Closed containers exposed to heat may explode.
PAGE 74 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
SECTION IV - REACTIVITY DATA OF SOLUTION
Stability: Stable
Hazardous Polymerization: Will not occur
Conditions to Avoid: Heat, flame, other sources of ignition
Incompatibles: Strong acids, strong bases, strong oxidizing agents.
Decomposition Products: Lead fumes, carbon monoxide, carbon dioxide.
SECTION V - HEALTH HAZARD DATA OF SOLUTION
Lead Acetate Component Data is for lead, inorganic dusts and fumes as Pb
(TLV/TWA): 0.15 mg/m3
STEL: Not Established
PEL: 0.05 mg/m3
Toxicity:
Carcinogenicity:
Reproductive Effects: None identified
Effects of Overexposure:
INHALATION: Tightness and pain in chest, coughing, difficult breathing.
SKIN CONTACT: Irritation.
EYE CONTACT: Irritation.
SKIN ABSORPTION: May be harmful.
INGESTION:
CHRONIC EFFECTS:
Target Organs: GI tract, central nervous system, kidneys, blood, gingival tissue.
Medical Conditions Generally Aggravated by Exposure: None identified.
Primary Routes of Entry: Ingestion, inhalation, eye contact, skin contact, absorption.
Emergency and First Aid Procedures:
INGESTION: CALL A PHYSICIAN. Give large amounts of water.
INHALATION: If inhaled, remove to fresh air.
SKIN CONTACT: In case of contact, flush with water for at least 15 minutes.
EYE CONTACT: In case of contact, flush with water for at least 15 minutes.
Acetic Acid Data is for concentrated acid.
Threshold Limit value (TLV/TWA) 25 mg/m3
Short term exposure limit (STEL) 37 mg/m3
Permissible exposure limit (PEL) 25 mg/m3
Intraperitioneal Rate LD50 for Lead Acetate
Trihydrate is 200 mg/Kg
This substance is listed as a NTP anticipated human carcinogen and an
IARC animal carcinogen.
Is harmful and may be fatal, headache, nausea, vomiting, dizziness,
gastrointestinal irritation.
Anemia, kidney damage, blurred vision, lead build-up in the central
nervous system.
Series 1300 Oxygen Deficiency Monitor PAGE 75
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
SECTION V - HEALTH HAZARD DATA OF SOLUTION (continued)
Toxicity:
Oral rate LD50 for acetic acid: 3310 mg/kg
Intravenous mouse LD50 for acetic acid: 525 mg/kg
Skin rabbit LD50 for acetic acid: 1060 mg/kg
Inhalation mouse LD50 for acetic acid: 5620 mg/kg
Carcinogenicity NTP: No
IARC No
Z List: No
OSHA Reg: No
Carcinogenicity: None identified
Reproductive Effects: None identified
Effects of Overexposure:
INHALATION: Severe irritation or burns of respiratory system
SKIN CONTACT: Severe burns, may cause dermatitis
EYE CONTACT: Severe burns, permanent eye damage.
SKIN ABSORPTION: None identified
INGESTION:
CHRONIC EFFECTS: Lung damage, teeth damage
Target Organs: Respiratory system, eyes, skin, teeth, lungs.
Medical Conditions Generally Respiratory system disease, skin disorders.
Aggravated by Exposure:
Primary Routes of Entry: Inhalation, ingestion, skin contact, eye contact.
Emergency and First Aid Procedures:
INGESTION: CALL A PHYSICIAN. Give large amounts of water.
INHALATION: If inhaled, remove to fresh air.
SKIN CONTACT: Immediately flush skin with plenty of water for at least 15 minutes.
EYE CONTACT: Immediately flush with plenty of water for at least 15 minutes.
Burns to mouth and throat, nausea, vomiting, gastrointestinal irritation,
diarrhea, shock, may be fatal
PAGE 76 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
SECTION VI - SPILL AND DISPOSAL PROCEDURES
NOTE: The sensors are sealed, and under normal circumstances, the contents of the sensors do not present a health hazard. The following
information is given as a guide in the event that a cell leaks.
Wear respiratory protection and full protective clothing
Steps to be taken in the event of a spill or discharge:
Disposal Procedure:
EPA Hazardous Waste Numbers:
Lead D008
Lead Acetate U144 (Toxic Waste)
Acetic Acid, Glacial D001, D002 (Ignitable, Waste)
SECTION VII - ENGINEERING AND WORK PRACTICES CONTROLS
VENTILATION: Use general or local exhaust ventilation to meet TLV requirements.
RESPIRATORY PROTECTION:
EYE/SKIN PROTECTION:
Protective measures during cell replacement:
Before opening the packaging containing the sensor cell, check the sensor cell for leakage. If the sensor cell leaks, do not open the
container. If there is liquid around the cell while in the instrument, use the protection listed above in this section.
Neutralize spill with soda ash or lime
Carefully place material into clean, dry container and cover.
Flush spill area with water.
Dispose in accordance with all applicable federal, state and local
environmental regulations, with regards to lead or lead acetate.
Respiratory protection required if airborne concentration exceeds
TLV.
Safety goggles, uniform, apron, neoprene gloves are
recommended.
SECTION VIII - STORAGE AND HANDLING PRECAUTIONS
Storage Requirements: Store in a cool, well-ventilated area.
Series 1300 Oxygen Deficiency Monitor PAGE 77
USER MANUAL ALPHA OMEGA INSTRUMENTS CORP.
18 APPENDIX G – Battery Backup
The Series 1300 Oxygen Deficiency Monitor when equipped with the battery backup option, will be shipped
with the battery pack installed but disconnected. Therefore the battery must FIRST be connected BEFORE
operating the instrument, otherwise the battery backup will not work. Please read section 18.2Battery
installation/Replacement below for information on how to access the battery and how to connect the battery
connector. Please be aware that the instrument will NOT turn on immediately after the battery is reconnected.
18.1 Battery Backup details
The battery backup is designed to operate the instrument for approximately 30 minutes after a main power loss
under it's full rated load. This includes all relays energized and (4) instrument powered horn and strobes9. The
backup time is determined by the total charge time, the ambient temperature, and the number of alarms/relays
being powered during backup. The instrument will automatically turn off when the battery reaches it's minimum
recommended voltage.
18.1.1 Battery Temperature
It is recommended to keep the ambient temperature below 35 degrees C to maximize the performance of the
battery and maintain maximum backup times. Higher ambient temperatures will adversely affect the battery
and result in less backup time and premature failure over time.
When main power is restored, the instrument will recharge the battery pack back to it's full capacity. This will
take approximately 16 hours if fully discharged.
18.1.2 Battery Testing
The battery pack is of the NiMH (Nickel Metal Hydride) type. It is recommended that the battery backup be
tested on a regular basis to verify operation. In the absence of any protocol, it is recommended that the battery
be inspected and a discharge test be performed every 3 to 6 months. If the battery is not holding a charge or
the battery and/or it's connections look damaged or corroded, the battery must be replaced.
18.2 Battery Installation/Replacement
It is recommended that a fully qualified trained electrician perform any wiring.
WARNING: Remove all power to the instrument before opening the cover to the instrument.
Follow these steps to replace the battery:
1. Remove the front cover by locating and removing the six (6) Phillips head screws located on the
edges of the front cover of the instrument. The cover will lift off.
2. While holding the hinged front panel display, locate and remove the two (2) flat head Phillips head
screws at the top of the hinged display panel. Put these screws aside for later. Pull panel fully open
and away from the enclosure.
WARNING: Use only the screws provided. Use of alternate type screws may result in damage. Contact
Alpha Omega Instruments for proper replacement screws if necessary.
9
More than four horn and strobes require an external power source.
PAGE 78 Series 1300 Oxygen Deficiency Monitor
ALPHA OMEGA INSTRUMENTS CORP. USER MANUAL
Two screws at top
3. Disconnect the battery connector located on the battery charger board on the right side of the
enclosure. The battery connector is a large white connector on the left side of the battery charger
board and is labeled “P1”. This connector is used to connect to the battery pack that is located
underneath the battery charger board. Pull up to disconnect. Take note of the polarity (RED toward
the left) to avoid misplacement and possible damage to the connector when replacing later. NOTE:
if this is a newly factory installed battery, the battery connector will already be connected but shifted
over by one or two pins for shipping only. Simply reconnect it with all three (3) pins lining up and
skip to step 6.
4. Access the battery pack; While holding the battery charger board, remove the (3) three pan head
Phillips screws at the top, right and left sides of the battery charger board. Put these screws aside
for later.
DO NOT remove the two (2) bottom screws on the battery charger board.
The hinged board will now open and the battery pack can then be removed.
NOTE: There is a small, thin foam backing behind the battery pack attached to the enclosure, make
sure that this foam backing remains in place.
5. Replace the battery pack with ONLY the same type battery pack from Alpha Omega Instruments
Corp. (PN 13-BAT). While holding the new battery pack in place, lift the battery charger board up
into place and align the three (3) holes in the printed circuit board with the stand-offs. Replace the
three pan head (3) Phillips screws into the battery charger board and hand tighten to secure it back
into place.
6. Re-attach the battery pack connector to the battery charger board at “P1” making sure the RED
lead is closest to the edge of the board.
NOTE: Accidentally swapping the polarity of the battery connector could result in damage to the
connector on the battery charger board. Avoid excessive force while pushing the connector onto the
P1 connection and verify that the tines on the battery pack connector are facing up.
7. Close the hinged display panel and install the two (2) flat head Phillips screws that were originally
installed at the top.
8. Replace the outer cover and install the six (6) Phillips head screws to secure.
The instrument is ready for the main power to be applied.
Series 1300 Oxygen Deficiency Monitor PAGE 79
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