ENMET AM-5175 User Manual
ENMET Corporation
PO Box 979
Ann Arbor, MI 48106-0979
www.enmet.com
Manual part number
80003-551
MCN-14-003, 03/20/14
AM-5175
Ambient Air Monitor
Manual
Table of Contents
1.0 Introduction ..............................................................................................................................................................1
1.1 Unpack .................................................................................................................................................................1
1.2 Check Order .........................................................................................................................................................1
1.3 Serial Numbers.....................................................................................................................................................1
2.0 Components of the AM-5175 ..................................................................................................................................2
2.1 AM-5175 elements ...............................................................................................................................................2
2.2 AM-5175 Operational Features............................................................................................................................2
2.3 Circuit Board Features .........................................................................................................................................3
3.0 Installation of the AM-5175 ....................................................................................................................................4
3.1 Mounting AM-5175 .............................................................................................................................................4
3.1.1 Wiring the AM-5175 .....................................................................................................................................5
3.1.2 Power Supply ................................................................................................................................................5
3.3 Relay Contacts .....................................................................................................................................................6
4.0 Operation .................................................................................................................................................................7
4.1 Start Up AM-5175 ...............................................................................................................................................7
4.1.1 Typical Start Up ............................................................................................................................................7
4.2 Normal Display Mode ..........................................................................................................................................8
4.2.1 Alarm Conditions AM-5175 .........................................................................................................................8
5.0 Maintenance .............................................................................................................................................................9
5.1 Maintenance Menus .............................................................................................................................................9
5.2 Calibration of the AM-5175 ............................................................................................................................... 11
5.2.1 Exit Maintenance Menu .............................................................................................................................. 12
5.2.2 Zero Adjust ................................................................................................................................................. 12
5.2.3 Gas Span ..................................................................................................................................................... 13
5.2.4 Alarm Set Points ......................................................................................................................................... 14
5.2.5 mA Span Set ............................................................................................................................................... 14
5.3 Sensor Replacement ........................................................................................................................................... 15
5.3.1 A Factory calibration must be performed. .................................................................................................. 15
6.0 Accessory and Replacement Parts ......................................................................................................................... 16
7.0 Technical Data and Specifications ......................................................................................................................... 16
8.0 WARRANTY ........................................................................................................................................................ 17
List of Tables
Table 1 : Relay Failsafe Settings ....................................................................................................................................6
Table 2: AM-5175 Maintenance Menus Sequence ........................................................................................................9
List of Illustrations
Figure 1: External AM-5175 Features ...........................................................................................................................2
Figure 2: AM-5175 Circuit Board Features ...................................................................................................................3
Figure 3: Mounting AM-5175........................................................................................................................................4
Figure 4: Power Terminal Connections AM-5175 .........................................................................................................5
Figure 5: Relay Terminal Connections AM-5175..........................................................................................................6
Figure 6: AM-5175 Maintenance Menu Flow Chart .................................................................................................... 10
Figure 7: Calibration Adapter ...................................................................................................................................... 11
Figure 8: AM-5175 Sensor Replacement ..................................................................................................................... 15
Reference Information:
N
OTE
: [important information about use of instrument]
C
W
ARNING
AUTION
: [affects equipment – if not followed may cause damage to instrument, sensor etc…]
:
[affects personnel safety – if not followed may cause bodily injury or death.]
Earth Ground
AM-5175 ENMET Corporation
1.0 Introduction
The AM-5175 is an ambient air monitoring instrument that measures and detects gases utilizing electrochemical sensor. The
AM-5175 is NOT in an enclosure rated for use in a Class I, Div 1, Groups B, C, D classified area and can not be installed in a
hazardous location.
Features of the AM-5175:
continuous monitoring of the ambient air
continuous LCD display of gas and vapor concentrations
menu driven operational and maintenance controls
menu driven calibration procedure
audio and visual alarms indicate unsafe conditions
alarm relay contacts available on terminals
a fault relay and visual fault alarm
alarm acknowledgement capability including audio defeat
mA outputs for target gas
N
OTE
: All specifications stated in this manual may change without notice.
1.1 Unpack
Unpack the AM-5175 and examine it for shipping damage. If such damage is observed, notify both ENMET customer service
personnel and the commercial carrier involved immediately.
Regarding Damaged Shipments
N
OTE
: It is your responsibility to follow these instructions. If they are not followed, the carrier will not honor
any claims for damage.
This shipment was carefully inspected, verified and properly packaged at our company and delivered to the carrier in
good condition.
When it was picked up by the carrier at ENMET, it legally became your company’s property.
If your shipment arrives damaged:
• Keep the items, packing material, and carton “As Is.” Within 5 days of receipt, notify the carrier’s local office and
request immediate inspection of the carton and the contents.
• After the inspection and after you have received written acknowledgment of the damage from the carrier, contact
ENMET Customer Service for return authorization and further instructions. Have your Purchase Order and Sales
Order numbers available.
ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage,
usually $100.00. Repair or replacement charges above that value are your company’s responsibility.
The shipping company may offer optional insurance coverage. ENMET only insures shipments with the shipping
company when asked to do so in writing by our customer. If you need your shipments insured, please forward a written
request to ENMET Customer Service.
Regarding Shortages
If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of
receipt at the following address:
ENMET Corporation
680 Fairfield Court
Ann Arbor, MI 48108
734-761-1270 734-761-3220 Fax
1.2 Check Order
Check, the contents of the shipment against the purchase order. Verify that the AM-5175 is received as ordered. Each AM5175 is labeled with its target gas. If there are accessories on the order, ascertain that they are present. Check the contents of
calibration kits. Notify ENMET customer service personnel of any discrepancy immediately.
1.3 Serial Numbers
Each AM-5175 is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.
1
AM-5175 ENMET Corporation
control the instrument maintenance functions. The
Menu
Select
Power Wiring
Visual Indicators:
Pushbutton/Membrane
Visual Indicator
Power/Fault
Front Cover
Sensor
2.0 Components of the AM-5175
2.1 AM-5175 elements
See Figure 1 for location of elements:
Feature Description
Enclosure
Front Cover
2.2 AM-5175 Operational Features
The Display Panel is attached by a cable and is released by unscrewing the 4 screws located in the corners. After releasing the
panel, it is swung upward, exposing the interior of the enclosure. See Figure 1 for location of features.
Feature Description
Display
Audio Alarm(Horn)
Visual:
Indicators and Alarms
Membrane Switches
A polycarbonate box, approximately 7 x 5 x 3, with a detachable front cover.
4 holes for mounting the enclosure to a vertical surface. Located at the corners of the bottom
of the enclosure, directly beneath the 4 front cover retaining screws. See Figure 3
Detachable front cover of AM-5175 with Display Panel. See Section 2.2 and Figure 1
There are 4 Screws that hold the front cover in place.
A single line, 8 character LCD with backlight. Indicates the level of gas detected by sensor.
The numerical value of gas concentration and other information is displayed.
Audio alarm (105 dB at 30cm/12in). The audio alarm is activated when the unit is in alarm.
LED indicators:
Power / Fault Indicator LED, Green / Red
Alarm (3) Indicator LED, Red
2 Pushbutton Switches on front panel
pushbutton switch locations are indicated by:
M
ENU
↓: Advances the instrument display through operation information and maintenance
menus
S
ELECT
: Disables audio alarm temporally and
Selects the maintenance menu operations such as, Zero, Span, Exit menu or sets
proper calibration values for Zero or Span
See Section 4.0 and 5.0 for operational and maintenance flow charts.
Three alarm points are preprogrammed into the AM-5175. At each alarm point, an LED on the front panel is activated. There
are 4, 10 Amp relay contacts at each alarm point, plus a fault relay. See Section 3.2 for wiring information.
Alarm1, Alarm2, Alarm3
Remote Wiring Access
Switches
Audio Alarm
Retaining Screws
4 places
Strain Relief
Figure 1: External AM-5175 Features
2
AM-5175 ENMET Corporation
Relay Terminals
Relays
Terminal J12
4-20mA Output
RS-485 Input/Output
Sensor Connection
2.3 Circuit Board Features
The Display Panel is attached by a cable and is released by unscrewing the 4 screws located in the corners. After releasing the
panel, it is swung upward, exposing the interior of the enclosure. The Circuit Board is mounted at the back surface of the
enclosure interior. Features are shown in Figure 2.
Feature Description
Relay Terminals:
J14, J15, J16, J17
Terminal J12
Sensor Terminal J8
Data Terminal J19
Potentiometer 2, 3 & 4
This group of terminals is located on the Circuit Board.
For the contacts for each of three alarm relays, and for the contacts of a fault relay.
See Section 3.3
For VDC back-up power in and the 4-20 mA output. See Section 3.1.2
Sensor connection, See Section 3.2
RS-485 input/output
Not used in AM-5175 Do Not Adjust
Terminal J19
J14, J15, J16, J17
K1, K2, K3, K4
DC Power In
Terminal J8
Figure 2: AM-5175 Circuit Board Features
3
AM-5175 ENMET Corporation
Right Side View
3.0 Installation of the AM-5175
The AM-5175 is supplied with a strain relief and a standard U.S. 3 prong power line cord.
N
OTE
: This control panel is NOT rated for hazardous locations. The control panel must be located in a NON-Hazardous area.
3.1 Mounting AM-5175
Mount the AM-5175 instrument on an appropriate vertical surface, leaving room for lid to be opened, using the mounting holes
provided. Avoid areas with excessive vibration or temperature extremes. The holes in the bottom of the enclosure are 0.18
inch in diameter and form a 6.44″ x 4.47″ rectangle. See Figure 3
It is recommended to use #8 drywall anchors and screws for mounting the AM-5175 to a drywall/sheetrock surface.
Cover Inside View
Opened Upward
Attached to Base
Access for Sensor / Remote Sensor Wiring
Dimensions are in inches.
Figure 3: Mounting AM-5175
4
AM-5175 ENMET Corporation
Caution
3.1.1 Wiring the AM-5175
The electrical installation should conform to appropriate electrical codes, such as the National Electrical Code in the United
States.
W
ARNING
:
The compliance of the installation to appropriate codes is not ENMET’s responsibility.
The AM-5175 should be powered through circuit breakers provided for this purpose.
3.1.2 Power Supply
The input power can vary from 100 to 240 VAC, 50/60 Hz. Power should be connected to the Power Input Terminal TB1 and
the Ground screw. See Figure 4 for location. Instrument is supplied with a strain relief and a standard U.S. 3 prong power line
cord.
For DC wiring 24VDC may be wired to J12, (J12-1)position 1 + with ground connected to (J12-2)position 2.
Upon supplying power to the AM-5175:
The green power on LED is lit.
The display backlight is lit, and instrument will step through a start-up sequence: unit serial number and software revision
may be shown on the display.
The instrument may go into alarm briefly, but the sensors stabilize quickly. If the instrument persists in alarm, acknowledge the
alarm by pressing the S
W
ARNING
:
Continuous gas detection and alarm systems (110VAC/220VAC / 24VDC/12VDC powered) become inoperative upon
loss of primary power. Contact factory for specifications and pricing of backup battery systems.
AC Power Supply Terminal: TB1
Label on PCB Function
110VAC
TB1 ACL Line
Ground
Screw
TB1 ACN Neutral
AC GND
ELECT
button. If alarm persists longer than 30 minutes, call ENMET customer service personnel.
Cover Inside View
Opened Upward
220VAC
Optional TB1 ACL Line
Ground
Screw
C
AUTION
DC Power Supply/4-20mA
Terminal: J12
Sensor Terminal: J8
TB1 ACN Neutral
AC GND
: 110/220 VAC when applied
Position Function
1 +
2 GND
3 4 - 20 mA out
Position Function Color
1 + Sensor Red
2 Sensor Signal White
3 Sensor Ground Black
24 V
DC
power
Figure 4: Power Terminal Connections AM-5175
: 110/220 Vac
when applied
5
Loading...