Beacon 110 Gas Monitor
Operator’s Manual
Part Number: 71-0110RK
Revision: H
Released: 12/5/17
RKI Instruments, Inc.
www.rkiinstruments.com
Product Warranty
RKI Instruments, Inc., warrants gas alarm equipment sold by us to be free from defects in
materials, workmanship, and performance for a period of one year from date of shipment
from RKI Instruments, Inc. Any parts found defective within that period will be repaired or
replaced, at our option, free of charge. This warranty does not apply to those items which
by their nature are subject to deterioration or consumption in normal service, and which
must be cleaned, repaired, or replaced on a routine basis. Examples of such items are:
Warranty is voided by abuse including mechanical damage, alteration, rough handling, or
repair procedures not in accordance with the operator’s manual. This warranty indicates
the full extent of our liability, and we are not responsible for removal or replacement costs,
local repair costs, transportation costs, or contingent expenses incurred without our prior
approval.
a) Absorbent cartridges d) Batteries
b) Pump diaphragms and valves e) Filter elements
c) Fuses
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER
WARRANTIES AND REPRESENTATIONS, EXPRESSED OR IMPLIED,
AND ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF
RKI INSTRUMENTS, INC., INCLUDING BUT NOT LIMITED TO, THE
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. IN NO EVENT SHALL RKI INSTRUMENTS,
INC., BE LIABLE FOR INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
LOSS OR DAMAGE OF ANY KIND CONNECTED WITH THE USE OF
ITS PRODUCTS OR FAILURE OF ITS PRODUCTS TO FUNCTION OR
OPERATE PROPERLY.
This warranty covers instruments and parts sold to users by authorized distributors,
dealers, and representatives as appointed by RKI Instruments, Inc.
We do not assume indemnification for any accident or damage caused by the operation of
this gas monitor, and our warranty is limited to the replacement of parts or our complete
goods.
Beacon 110 Operator’s Manual
Table of Contents
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About the Beacon 110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2: Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
External Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Internal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 3: Installation & Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mounting the Beacon 110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wiring the Beacon 110 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 4: Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4 - 20 mA Signal Output Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Viewing and Resetting Min/Max Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Charging (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Alarm Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 5: Configuration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Viewing & Changing Beacon 110 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Beacon 110 Operator’s Manual
Chapter 6: Input Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Selecting the Detector Head Input and Gas Type . . . . . . . . . . . . . . . . . . . . . . . 30
Chapter 7: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Calibration Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Calibration Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Replacing the Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Appendix A: Control Button Quick Reference Guide. . . . . . . . . . . . . . . . . . . . . . . . 43
Beacon 110 Operator’s Manual
Chapter 1: Introduction
Overview
This chapter briefly describes the Beacon 110 Gas Monitor. This chapter also describes
the Beacon 110 Operator’s Manual (this document). Table 1 at the end of this chapter lists
the specifications for the Beacon 110.
About the Beacon 110
The Beacon 110 is a fixed mount, single channel continuous-monitoring gas monitoring
controller. All user adjustable parameters may be accessed using push button switches.
Both direct connect (internal amplifier type) detector heads and 4 - 20 mA transmitter
(remote amplifier type) detector heads may be used with the Beacon 110.
The Beacon 110 displays the current gas reading on an LCD display which is visible
through a window in the door. It includes audible and visual alarms that warn you of
hazardous gas conditions. The alarm circuit includes two levels of gas alarms. The fail
circuit alerts you to failures in the gas detector heads or Beacon 110. The Beacon 110
provides a 4 - 20 mA signal proportional to the target gas reading for use by a recording
device. Three sets of relay contacts, two controlled by the gas alarms and one by the fail
alarm, rated at 10 amps 115 VAC, 10 amps 220 VAC, and 10 amps 30 VDC are available
for controlling devices such as lights or horns or for controlling higher rated relays.
Three operating modes allow you to display and change setup and calibration settings and
change the detector head input type. They are Calibration Mode, Configuration Mode, and
Input Mode.
About this Manual
The Beacon 110 Operator’s Manual uses the following conventions for notes, cautions,
and warnings.
NOTE: Describes additional or critical information.
CAUTION: Describes potential damage to equipment.
WAR NING: Describes potential danger that can result in injury or death.
Beacon 110 Operator’s Manual 1
Specifications
Table 1 lists specifications for the Beacon 110.
Table 1: Beacon 110 Specifications
Input Power 100/115/220V ~ ±10%, 50/60Hz, 0.2/0.2/0.1A
or
24 V ± 10%, 0.5A
Construction (housing) Fiberglass/polyester with lexan window (NEMA 4X)
Dimensions 8.5 in. H x 6.5 in. W x 4.5 in. D
(216 mm H x 165 mm W x 108 mm D)
Weight 4.2 lbs.
Safety/Regulatory
C US
186718
Environmental Conditions • For indoor or outdoor locations (Type 4X)
• -20°C to 50°C (-4°F to 122°F) ambient
• Maximum relative humidity of 80%
• Main supply voltage fluctuations not exceeding ± 10% of nominal
• DC supply voltage fluctuations not exceeding ±10% of nominal
• Overvoltage Category II, Pollution Degree 2
Relays • Relay contacts rated for 10A @ 115/220V~ resistive or 10A @ 3 0 V
User Controls • Three push button control switches
Signal Output • 4 to 20 mA, 500 ohms impedance max
resistive
• SPDT Form C
• One ON/OFF toggle switch
• One push button reset switch
2 Beacon 110 Operator’s Manual
Chapter 2: Description
Overview
This chapter describes external and internal components of the Beacon 110 gas monitor.
External Description
This section describes the housing and all external components of the Beacon 110. For
the purposes of this description, the housing door is considered the front of the monitor.
Housing
The Beacon 110’s fiberglass housing is weather- and corrosion-resistant. It is suitable for
installation where general purpose equipment is in use. The housing door is hinged on the
left side and is secured by two latches on the right side. The display screen and status
lights are visible through a window in the housing door. Four mounting feet are attached to
the back of the housing (one at each corner). The mounting feet allow installation to a
vertical surface. Two conduit hubs on the bottom of the housing are for external wiring
connections. In some cases, the instrument is shipped with the gas detector already
installed in the right conduit hub and factory wired to the appropriate terminals inside the
unit.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason.
CAUTION: To avoid electrical interference, do not route detector and power wiring
through the same conduit hub.
Buzzer
The buzzer is on the bottom center of the housing in front of the reset switch. The buzzer
sounds audible alarms to warn you of gas alarms and instrument failures.
Reset Switch
The reset switch is on the bottom of the housing behind the buzzer. The reset switch
serves three functions:
• You can reset the alarm circuits for “latched” alarms after an alarm 1 or alarm 2
condition passes.
• You can silence the buzzer during an alarm 1 or an alarm 2 condition. You cannot
silence a fail condition.
• You can acknowledge and turn off the optional strobe in an alarm 1 or alarm 2
condition if it has been installed and setup for this type of operation.
• You can display and reset the minimum and maximum readings that the Beacon 110
has experienced since the last min/max reset or startup.
Beacon 110 Operator’s Manual 3
Internal Description
DC Power
Polyfuse
Relay (3X)
Detector/
Transmitter
Terminal
Strips
Main PCB
Power
Sw itch
AC Fuses
Power Supply
Reset Switch
Control
Terminal
Strip
Alarm Terminal
Strip
Buzzer
Conduit Hubs (2X)
Control PCB
AC IN
Terminal
Strip
This section describes the internal components of the Beacon 110.
Figure 1: Beacon 110 Component Location
Main Printed Circuit Board (PCB)
The main PCB is mounted inside the housing. The main PCB includes the power supply,
terminal strips, relays, fuses, and power switch.
Power Supply
The power supply is located on the left side of the main PCB. It takes AC line voltage
supplied to the Beacon 110 and converts it to 24 VDC which is used to run the Beacon
110.
4 Beacon 110 Operator’s Manual
Terminal Strips
The Beacon 110 includes terminal strips for external and factory wiring connections. See
“Wiring the Beacon 110” on page 13 for detailed wiring procedures.
• AC In Terminal Strip. The AC in terminal strip is a 3-point terminal strip located in the
lower left corner of the main PCB. It facilitates wiring from the AC power source.
Table 2 lists the function of each terminal.
Table 2: Terminal Assignments for the AC In Terminal Strip
Terminal Connects to:
L Hot (line) wire from AC power source.
N Neutral wire from AC power source.
G Earth ground
• Alarm Terminal Strip. The 9-point alarm terminal strip is located along the bottom
edge of the main circuit board to the right of the AC in terminal strip (see Figure 1). It
facilitates wiring external alarm devices (horn, strobe, etc.) to the alarm relay contacts
and includes common (C), normally closed (NC) and normally open (NO) terminals for
fail, alarm 1, and alarm 2.
• Controller Terminal Strip. The 8-point controller terminal strip is located along the
bottom edge of the main circuit board to the right of the alarm terminal strip (see
Figure 1). The controller terminal strip facilitates various internal and external wiring
connections. Table 3 lists the function of each terminal.
Table 3: Terminal Assignments for the Controller Terminal Strip
Terminal Connects to:
Alarm Buzzer + & - Factory installed buzzer (factory-wired)
Alarm Reset (2) Reset switch (factory-wired)
4 - 20 mA Output + + connection of 4 - 20 mA output
4 - 20 mA Output - - connection of 4 - 20 mA output
EXT DC (24V BATT) +
EXT DC (24V BATT) -
1
*
If DC power is used as the primary power source, do not make wiring connections to the AC terminal strip.
+ connection from 24 VDC power source
- connection from 24 VDC power source
1
(or 24 V backup battery)
1
(or 24 V backup battery)
• Detector/Transmitter Terminal Strips. Three adjacent terminal strips are located
along the right side of the main circuit board above the controller terminal strip (see
Figure 1). These three terminal strips facilitate wiring connections to a detector or a 4 20 mA transmitter. The lower 4-point terminal strip is labelled LEL and is used to wire
a combustible detector. The middle 2-point terminal strip is labelled Oxy and is used
to wire an oxygen detector. The top 3-point terminal strip is labelled AMP and is used
to wire 4 - 20 mA transmitters or direct connect preamp type detectors. Although
terminal strips are present for various types of detectors, only one detector head at a
time may be wired to the Beacon 110.
Beacon 110 Operator’s Manual 5
Ground Stud
The threaded ground stud is used for making connections to earth ground. It is connected
through the main PCB to the G (ground) terminal on the AC in terminal strip. A kep nut on
the stud may be removed for installation of one or more lugs to make wiring connections.
This stud is typically used to connect the shield drain wire of shielded cable to earth
ground at the Beacon 110.
Relays
The Beacon 110 includes three alarm relays located above the alarm terminal strip. They
are from left to right Fail, Alarm 1, and Alarm 2. The relays are form C, single-pole, doublethrow (SPDT) and rated for 10 amps at 250 VAC (resistive).
NOTE: You can select normally energized (N.EN) or normally de-energized (N.DE-EN)
settings for the alarm 1 and alarm 2 relays. See “Chapter 5: Configuration
Mode” on page 27.
The fail relay is factory set as normally energized and is not user adjustable.
AC & DC Circuit Protection
Two AC fuses are used in the Beacon 110. The two fuses are located on the left side of
the main PCB, above the AC power terminal strip and below the power supply. They cut
off the incoming AC power in the event of a short circuit or other electrical fault which
causes a high current draw in the Beacon 110. They are housed in vertical fuse holders
and are held in the holder by a quarter turn cover. They are labelled as F1 (left fuse) and
F2 (right fuse) on the PCB silk-screen and are rated at 3 A, 250 V.
A polyswitch is used to protect the DC power input. It is located to the right of the relays
and is labelled on the PCB silkscreen as PS3. In the event of a short circuit or other
electrical fault which causes a high current draw in the Beacon 110, the polyswitch will
interrupt the DC power if the unit is powered from DC. When the fault situation is
corrected, the polyswitch resets and the unit will continue to operate. The polyswitch is not
user serviceable.
Power Switch
The power switch is located to the right of the power supply and above the relays (see
Figure 1). The power switch turns the incoming AC power source on and off at the Beacon
110. When the switch is up, the power switch is on.
CAUTION: The DC power input has no on/off switch and is not affected by the position
of the power switch.
Control PCB
The LCD display and control buttons are located on the control PCB. It is installed on the
main PCB with three standoffs. The control PCB is connected to the main PCB with the
display cable which is a ribbon cable terminated with 20 position rectangular connectors
on each end. The display cable connects to the control PCB on the back of the top edge
and to the main PCB directly below the control PCB.
6 Beacon 110 Operator’s Manual
UP/YES DOWN/NO
ENTER
F
A1 A2
Control Switches
Fail LED
Alarm 1 LED
Alarm 2 LED
LCD Display
Contrast
Potentiometer
Figure 2: Control PCB Component Location
LCD Display
The LCD display is located at the top of the control PCB. It indicates the current gas
reading and displays messages and parameters in the Beacon 110’s operating modes.
Contrast Potentiometer
The contrast potentiometer is located to the right of the LCD display. It is used to adjust
the contrast of the LCD. If the background of the LCD appears so dark that the characters
are not visible or if the characters are too dim, turn the adjustment screw on the
potentiometer clockwise or counterclockwise until the desired visibility is obtained.
Control Buttons
The Beacon 110 includes three push button switches that allow you to enter the Beacon
110’s operating modes, navigate through the modes, update settings, and save changes
to the settings. The push button switches are located along the bottom edge of the control
PCB (see Figure 2). The UP/YES button is on the left, the DOWN/NO button is in the
middle, and the ENTER button is on the right.
Table 4: Beacon 110 Control Button Functions
Switch Function
UP/YES • Saves settings
• Changes the displayed setting
• Enters Calibration Mode
• Enters Input Mode (press with DOWN/NO button)
• Enters Configuration Mode (press with ENTER button)
DOWN/NO • Cancels setting changes
Beacon 110 Operator’s Manual 7
• Changes the displayed setting
• Enters Input Mode (press with UP/YES button)
• Displays the Information Screen
Table 4: Beacon 110 Control Button Functions
Switch Function
ENTER • Initiates operations
• Enters Configuration Mode (press with UP/YES button)
• Accepts displayed parameters
Status LEDs
The Beacon 110 includes three active status LEDs that are located above the display (see
Figure 1). Two LEDs, labelled RX and TX, to the right of those described below, are not
active.
• Fail LED
The fail LED turns on when the Beacon 110 is experiencing a fail condition. A fail
condition can be caused by a detector failure or low detector signal.
• Alarm 1 LED
The alarm 1 LED is on when the Beacon 110 is experiencing an alarm 1 condition.
• Alarm 2 LED
The alarm 2 LED is on when the Beacon 110 is experiencing an alarm 2 condition.
8 Beacon 110 Operator’s Manual
Optional Accessories
Strobe Terminal Strip
This section describes the optional accessories available for the Beacon 110. Both
optional accessories are wired to the Strobe Terminal Strip as shown below.
Figure 3: Strobe Terminal Strip Location
Beacon 110 Operator’s Manual 9
Alarm Strobe
Alarm S trobe
The Beacon 110 can be ordered with a red alarm strobe light installed on the top of the
housing. The Beacon 110 retains its NEMA 4X rating with the strobe installed. Strobe
operation can be programmed in Configuration Mode (see “Chapter 5: Configuration
Mode” on page 27). The outline and mounting dimensions of the Beacon 110 with the
optional alarm strobe mounted are the same as the standard Beacon 110 without the
strobe. See Figure 6 for outline and mounting dimensions.
Figure 4: Beacon 110 with Alarm Strobe
Horn/Strobe
The Beacon 110 can be ordered with a horn/strobe. This optional horn/strobe allows the
user to have both a strobe and a horn connected to the “Strobe” terminals of the Beacon
110. If the horn/strobe is not factory installed, it also allows the user to mount the horn/
strobe away from the Beacon 110 so that it can be somewhere more visible/audible.
Strobe operation can be programmed in Configuration Mode (see “Chapter 5:
Configuration Mode” on page 27).
10 Beacon 110 Operator’s Manual
NOTE: See “Chapter 3: Installation & Startup” on page 12 for complete Beacon 110
+
Dimensions Shown in Inches
-
5.97
6.81
4.83
6.17
Strobe Terminal Strip
installation instructions.
CAUTION: Do not adjust the strobe b rightness or the horn volume at the strobe/horn, as this
may overload the Beacon 110 strobe control circuit.
The optional horn/strobe is generally not factory installed and needs to be installed by the
user. The following instructions describe the installation of the horn/strobe. If the horn/
strobe is factory installed, the following instructions do not apply.
1. Mount the horn/strobe in the desired location.
2. Install an appropriately rated cable bushing or conduit to the left conduit hub on the
bottom of the Beacon 110 housing.
3. Install an appropriately rated cable bushing or conduit at the horn/strobe.
4. Run a cable or wires in conduit from the horn/strobe to the Beacon 110 through the left
conduit hub.
5. Connect the wires to the strobe terminal strip as shown in the figure below.
Figure 5: Horn/Strobe Wiring/Outline and Mounting Dimensions
Beacon 110 Operator’s Manual 11
Chapter 3: Installation & Startup
1.83
4.00
.30 Dia. x .50 Slot, 4X
1.70
7.20
3/4 Conduit Hub (2X)
Note: All Dimensions inInches
3.03
1.47
10.00 8.94 8.50
4.50
Overview
This chapter describes procedures to mount the Beacon 110 Gas Monitor, make wiring
connections to the monitor, and start up the monitor.
WARN ING: Perform all installation and start-up procedures in a “fresh air” environment
(environment known to be free of combustible gas, toxic gas, and of normal
oxygen content). The Beacon 110 is not in operation as a gas monitoring system
until the start-up procedure is complete.
Mounting the Beacon 110
Perform the following procedure to install the instrument housing at the mounting site.
Figure 6: Beacon 110 Outline & Mounting Dimensions
1. Select the mounting site. When you select the mounting site consider the following
factors:
• Is an AC or DC power source available?
12 Beacon 110 Operator’s Manual
• Is there enough room to open the housing door and make wiring connections
through the conduit hubs at the bottom of the housing?
• Are the display screen and status lights visible?
2. If necessary, close and latch the housing door.
3. Position the monitor on a vertical surface at eye level (4 1/2 to 5 feet from the floor).
4. Insert 1/4 in. or 5/16 in. screws through the slots in the mounting feet at each corner of
the housing to secure the housing to the mounting surface.
Wiring the Beacon 110
This section describes procedures to connect the AC power source, DC power source,
external alarm(s), recorder, and detector head.
WARNING: Make all connections to the Beacon 110 before you plug in or turn on the AC or
DC power source. Before you make any wiring adjustments, always verify that
all power sources are not live.
Routing Wiring Into the Beacon 110 Housing
Wiring must be brought into the housing through one of the two factory-installed conduit
hubs on the bottom of the housing.
Do not
drill into the Beacon 110 housing for any reason. Drilling the Beacon 110 housing
and routing wiring through holes not factory drilled will void the warranty
in:
• Damage to internal components from the drilling process.
• Moisture damage to internal components from poorly sealed holes.
• Unpredictable Beacon 110 behavior due to EMI/RFI interference caused by wires
routed across the PCBs.
• Possible shorting of Beacon 110 components due to wires routed across the PCBs.
and could result
Connecting the AC Power Source
NOTE: If you are using DC power as the primary power source, go to the next section,
“Connecting the DC Power Source”.
The AC in terminal strip will accept 24 - 14 AWG wire. All connections to building electrical
systems must be installed in accordance with local requirements and must be installed by
qualified personnel. If this equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired. Install an
appropriate switch or circuit breaker in the AC line close to the Beacon 110 that meets the
local electrical code and within easy reach of the operator. The switch or circuit breaker
must be marked as the disconnecting device for the Beacon 110.
Perform the following procedure to connect the AC power source to the Beacon 110.
WARNING: Verify that the power source is unplug ged or turned off before you continue
with this procedure.
Beacon 110 Operator’s Manual 13
1. Turn off or unplug all incoming power to the Beacon 110.
Ground
Neutral
Hot (Line)
AC In
Terminal
Strip
L
GN
100 VAC, 50/60 Hz
or
115 VAC, 50/60 Hz
or
220 VAC, 50/60 Hz
2. Open the housing door, then place the power switch in the OFF position.
CAUTION: The power switch does not control DC input power.
3. Install an appropriately rated cable bushing or conduit to the left conduit hub on the
bottom of the Beacon 110 housing.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
4. Locate the 3-point AC in terminal strip in the lower left corner of the main PCB (see
Figure 1). The terminals are labelled L, N, and G.
5. Guide the AC power cord or wires through the left conduit hub on the bottom of the
Beacon 110 housing.
CAUTION: Do not route power and detector head wiring through the same conduit
hub. The power wiring may disrupt the transmission of the detector head
signal to the monitor.
6. Connect the AC wires to the AC power terminal strip as shown in Figure 7 below.
Figure 7: AC Power Wiring
Connecting the DC Power Source
WARNING: Verify that the power source is unplug ged or turned off before you continue
with this procedure.
DC power may be used as a primary power source. If DC power (connected to the
External DC In terminals) is the primary power source, DO NOT connect AC power to the
AC In terminal strip.
A 24 VDC battery (connected to the External DC in terminals) may also be used as a
backup power source if AC power (connected to the AC In terminal strip) is the primary
power source. If your Beacon 110 does not include the battery charging feature, you may
use a self contained 24 VDC backup that keeps its batteries charged while AC power is on
and recharges the batteries when AC power returns after a power failure. If your Beacon
14 Beacon 110 Operator’s Manual
110 includes the battery charging feature, see “Battery Charging (Optional)” on page 22
EXT DC
(24V BATT)
+ -
+
-
24 VDC
External DC In Terminals
on Controller Terminal Strip
for a complete description of this feature and what type of battery to use.
W ARNING: The External DC In terminals on the controller terminal strip are only intended
for connecting a battery or a 24 VDC supply to the Beacon 110. Do not connect
any horns or strobes to the External DC In terminals on the controller terminal
strip.
1. Turn off or unplug all incoming power to the Beacon 110.
2. Open the housing door, then place the power switch in the OFF position.
CAUTION: The power switch does not control DC input power.
3. Locate the DC power terminals on the controller terminal strip in the lower right corner
of the main PCB (see Figure 1). They are labelled EXT DC + and EXT DC -.
4. Install an appropriately rated cable bushing or conduit to the left conduit hub on the
bottom of the Beacon 110 housing.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
5. Guide a DC power cord or wires through the conduit hub.
CAUTION: Do not route power and detector head wiring through the same conduit
hub. The power wiring may disrupt the transmission of the detector head
signal to the monitor.
6. Connect the DC wires to the controller terminal strip as shown in Figure 8.
Figure 8: DC Power Wiring
NOTE: The Beacon 110 will operate from the DC input down to 18.5 volts. If a self
contained backup battery is used, see its operator’s manual for a description of
its recharging characteristics. If your Beacon 110 includes the battery charging
feature and a backup battery is used, the Beacon 110 will recharge the battery
when AC power has returned after a power failure. See “Battery Charging
(Optional)” on page 22 for a complete description of the battery charging
feature.
Beacon 110 Operator’s Manual 15
Connecting External Alarms
NO NC C
Beacon 110
Alarm Terminal Strip
(+) H
(-) N
External Power
Source
External Alarm Device
ALARM-1
NO NC C
FAIL
NO NC C
ALARM-2
Perform the following procedure to connect external alarms to the Beacon 110.
WARNING: Do not connect external alarms to the External DC In terminals on the
controller terminal strip.
1. Turn off or unplug all incoming power to the Beacon 110.
2. Open the housing door, then place the power switch in the OFF position.
CAUTION: The power switch does not control DC input power.
3. Locate the alarm terminal strip. See Figure 1 “Beacon 110 Component Location” on
page 4, to assist you in locating the alarm terminal strip.
4. Install an appropriately rated cable bushing or conduit in the left conduit hub on the
bottom of the Beacon 110 housing. This hub is typically used for power wiring and
may already have conduit or other fittings installed because of this.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
5. Guide the wiring of the external alarm through the left conduit hub on the bottom of the
Beacon 110 housing.
CAUTION: Do not route the external alarm wiring and detector wiring through the same
conduit hub. The external alarm wiring may disrupt the transmission of the
detector signal to the Beacon 110.
6. Connect the leads from the external alarm to the appropriate terminals on the alarm
terminal strip as shown in Figure 9 to obtain the desired operation.
Figure 9: Typical Alarm Device Wiring
7. Repeat steps 5 and 6 for additional alarm devices.
16 Beacon 110 Operator’s Manual
Connecting Recorders
4-20 mA
OUTPUT
Recording Device,
500 Ohms Max
Impedance
Perform the following procedure to connect an analog signal recording device to the
Beacon 110. The output at the recorder output terminals is a 4 - 20 mA signal that is
proportional to the detection range of the detector head connected to the Beacon 110.
1. Turn off or unplug incoming power to the Beacon 110.
2. Open the housing door, and locate the recorder output terminals on the controller
terminal strip. See Figure 1 “Beacon 110 Component Location” on page 4 to assist
you in locating the recorder output terminals. They are labelled 4 - 20 mA OUTPUT +
and 4 - 20 mA OUTPUT -.
3. Place the power switch in the off position.
CAUTION: The power switch does not control DC input power.
4. Install an appropriately rated cable bushing or conduit in the left conduit hub on the
bottom of the Beacon 110 housing. This hub is typically used for power wiring and
may already have conduit or other fittings installed because of this.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
5. Guide the wiring from the recording device through the left conduit hub on the bottom
of the Beacon 110 housing.
6. Connect the leads from the recording device to the analog output terminal strip as
shown in Figure 10 below.
Figure 10: Recorder Output Wiring
Connecting RKI Detector Heads
Perform the following procedure to connect an RKI detector head to the Beacon 110.
1. Turn off or unplug power to the Beacon 110.
2. Open the Beacon 110 door and place the power switch in the off position.
3. See the detector head operator’s manual for instructions on how to connect the
detector head to a controller.
Beacon 110 Operator’s Manual 17
4. Install an appropriately rated cable bushing or conduit in the right conduit hub on the
bottom of the Beacon 110 housing.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
5. Route the wires in conduit or shielded cable from the detector head through the right
conduit hub into the Beacon 110. See Table 5 below for wire size and distance
guidelines.
6. Unshielded twisted pair cable in conduit or shielded twisted pair cable is
recommended for all the direct connect detector heads. For the LEL detector, pair and
twist the R & B wires and the W & G wires. Shielded cable or wires in conduit are
recommended for the 2-wire and 3-wire 4 - 20 mA transmitters.
7. Connect the wires from the detector head to the appropriate detector/transmitter
terminals. See the detector head operator’s manual and the Beacon 110 Detector
Head Specifications sheet for detector head connections to the Beacon 110. If
shielded cable is used, connect the cable shield’s drain wire at the Beacon 110 to the
ground stud on the main PCB.
CAUTION: Do not route power and detector head wiring through the same conduit
hub. The power wiring may disrupt the transmission of the detector head’s
to the Beacon 110.
Table 5: Wire Size Guidelines for RKI Detector Head Wiring
Number of
Detector Head Type
Wires to
Controller
Direct Connect LEL 4 500 ft. 1,000 ft. 2,000 ft.
Direct Connect Oxygen 2 500 ft. 1,000 ft. 2,000 ft.
Direct Connect H2S 2 500 ft. 1,000 ft. 2,000 ft.
Direct Connect CO 2 500 ft. 1,000 ft. 2,000 ft.
Direct Connect ESM-01 type 2 500 ft. 1,000 ft. 2,000 ft.
2-Wire 4 - 20 mA Transmitter 2 2,500 ft. 5,000 ft. 8,000 ft.
3-Wire 4 - 20 mA Transmitter 3 2,500 ft. 5,000 ft. 8,000 ft.
Max Distance
to Controller
w/18 Gauge
Wire
Max Distance
to Controller
w/16 Gauge
Wire
Max Distance
to Controller
w/14 Gauge
Wire
18 Beacon 110 Operator’s Manual
Connecting User-Supplied 4 to 20 mA Transmitters
3-Wire Connection 2-Wire Connection
(DC Ground)
4 - 20 mA
+ 24 VDC
4 - 20 mA
+ 24 VDC
3-wire 4 - 20 mA
Transmitter
2-Wire 4 - 20 mA
Transmitter
BLK
GRN
WHT
RED
GRN
WHT
L
E
L
A
M
P
O
X
Y
S
BLK
GRN
WHT
RED
GRN
WHT
L
E
L
A
M
P
O
X
Y
S
The Beacon 110 may be used with a user supplied 2-wire or 3-wire source type 4 - 20 mA
transmitter which runs on 24 VDC. When this is done, the Beacon 110 is normally setup at
RKI Instruments with the following parameters: item name (example: Pressure), unit of
measure (example: PSI), and full scale (example: 100). For example, a Beacon 110 can
be setup for “Pressure” with units of “PSI” and a full scale of “100” PSI.
Perform the following procedure to connect a 4 to 20 mA transmitter that you supply to the
Beacon 110.
1. Turn off or unplug power to the Beacon 110.
2. Open the Beacon 110 door and turn off the power switch.
3. See the transmitter’s instruction manual for instructions on how to connect wires to the
transmitter.
4. Install an appropriately rated cable bushing or conduit in the right conduit hub on the
bottom of the Beacon 110 housing.
CAUTION: Only use the two factory installed conduit hubs on the bottom of the
housing for wire entry into the housing. Do not drill the housing for any
reason. See “Routing Wiring Into the Beacon 110 Housing” on page 13 for
more information.
5. Route the wires from the transmitter through the right conduit hub into the Beacon
110.
6. Connect the wires from the transmitter to the AMP terminal strip. Figure 11 below
illustrates typical transmitter wiring connections. See the transmitter instruction
manual for controller terminal connections. If shielded cable is used, connect the
cable shield’s drain wire at the Beacon 110 to the ground stud on the main PCB.
CAUTION: Do not route power and transmitter wiring through the same conduit hub.
The power wiring may disrupt the transmission of the transmitter’s signal to
the Beacon 110.
Beacon 110 Operator’s Manual 19
Figure 11: Generic 4 - 20 mA Transmitter Wiring
Start Up
METHANE
0 %LEL
Introducing Incoming Power
Perform the following procedure to place the Beacon 110 into normal operation.
1. Complete the mounting and wiring procedures described earlier in this chapter.
2. Complete all installation procedures described in the detector head or user supplied
4 - 20 mA transmitter operator’s manual.
3. Verify that all wiring connections are correct and secure and that the Beacon 110’s
power switch is in the OFF position.
4. Plug in or turn on the incoming power source (AC or DC).
5. Turn on the power switch if AC power is used as primary power.
6. The LCD display will indicate the firmware version when the Beacon 110 is first
powered up and will then count down a one minute warm-up period before normal
operation begins. During normal operation, the display will indicate the current gas
reading and target gas. Verify that the display is indicating the current gas reading and
target gas after the warm-up period is complete and normal operation begins, for
example:
NOTE: To prevent unwanted alarms during warm up, the alarm circuits are not active
during the warm-up period.
7. Perform the start-up procedure for the RKI detector head or user supplied 4 - 20 mA
transmitter as described in the detector head or transmitter operator’s manual.
20 Beacon 110 Operator’s Manual
Chapter 4: Operation
METHANE
0 %LEL
Overview
This chapter describes the Beacon 110 in normal operation. This chapter also describes
the Beacon 110 in alarm 1, alarm 2, and fail conditions and suggests response to these
conditions.
Normal Operation
Normal operation is defined as follows:
• The start-up procedure is complete.
• The Beacon 110 is not indicating an alarm 1, alarm 2, or fail condition.
• The Beacon 110 is not in Calibration, Configuration, or Input Mode.
During normal operation, the Beacon 110 simultaneously displays the current gas reading,
unit of measure, and target gas. The example below illustrates a typical LEL Beacon 110.
4 - 20 mA Signal Output Operation
The output at the 4 - 20 mA output terminals is a 4 - 20 mA signal that is proportional to the
detection range of the Beacon 110. During normal operation, this signal tracks the gas
concentration on the LCD.
There are several circumstances where the signal output will not track the display reading
but will behave as follows:
• When the Beacon 110 is in its warm-up period, the signal output will be fixed at 4 mA
(zero) for all gas types except oxygen. For oxygen types, the output will be fixed at
17.4 mA (20.9% oxygen) while the Beacon 110 is in warm-up.
• When the Beacon 110’s gas type is changed, the Beacon 110 will enter Configuration
Mode for you to verify the parameter settings. When you exit Configuration Mode, the
display will indicate NEEDS CALIBRATION and will continue to indicate this until
Calibration Mode is entered and a calibration is performed. In this situation, the signal
output will be fixed at 3.5 mA for all versions other than oxygen and 17.4 mA for
oxygen versions from the time Gas Type Mode is entered until the Beacon 110 is
calibrated and returns to normal operation.
• If you enter Calibration Mode, Configuration Mode, or Gas Type Mode, the signal
output will be fixed at 3.5 mA for all versions other than oxygen and 17.4 mA for
oxygen versions until the Beacon 110 returns to normal operation.
• If the Beacon 110’s input power decreases below 18.5 volts so that the Beacon 110 is
in a low power alarm, the signal output is fixed below 2.4 mA until the low power alarm
is cleared.
Beacon 110 Operator’s Manual 21
• If the Beacon 110 goes into a fail condition, after a 30 second delay, the signal output
is fixed below 2.4 mA until the fail alarm is cleared. During the 30 second delay, the
output follows the detector output. In the case of a downscale reading, the displayed
gas reading will only go as low as -10% of full scale but the signal output will continue
to track the reading even if it’s lower than -10% of full scale.
Viewing and Resetting Min/Max Readings
The reset switch may be used to view and reset the minimum and maximum gas readings.
NOTE: Minimum and maximum readings are reset if the instrument is turned off.
1. While the Beacon 110 is in normal operation, press and hold the reset switch button
for 5 seconds.
2. The display will indicate the minimum reading on the bottom display line and the
maximum reading on the top display line for about 3 seconds before indicating
<RESET> TO CLEAR.
3. To return to normal operation without resetting the minimum and maximum readings,
do not press the reset switch button and allow the unit to return to normal operation. It
will return to normal operation in about 5 seconds.
To reset the minimum and maximum readings, press and hold the reset switch button
while the <RESET> TO CLEAR message is on the display until the display indicates
Min/MAX Is RESET. Release the reset switch button.The unit will then return to
normal operation in about 5 seconds.
Battery Charging (Optional)
The Beacon 110 has an optional backup battery charging feature. In order for this feature
to be included, the Beacon 110 must be ordered with this feature. Consult RKI
Instruments, Inc. for ordering information.
The battery charging circuit is designed to charge lead acid type batteries. If AC power is
used as primary power and a backup battery is connected to the Beacon 110’s EXT DC/
24V BATT terminals as shown in Figure 8, the battery charging feature will charge the
battery if it is depleted and keep it charged with a charge current of approximately 100 mA.
CAUTION: When a battery is used as backup power and the charging feature is
included in the Beacon 110, do not use a non-rechargeable battery or
backup battery that has a charging feature. Use RKI backup battery 498102RK or an appropriately rated 24 VDC rechargeable lead acid type
battery.
22 Beacon 110 Operator’s Manual
Alarm Indications
NOTE: The Beacon 110 includes alarm on and alarm off delay settings for alarm 1 and
alarm 2. The alarm indications described in this section operate according to
the factory set alarm settings. See Table 7 on page 28 for all the factory
settings.
Table 6: Visual and Audible Alarm Indications
Condition Cause Visual Indication(s)
Alarm 1
Alarm 2
Fail • Disconnected or misconnected
1
1
Increasing (decreasing for O
ing at or above the alarm 1 setpoint
Increasing gas reading at or above the
alarm 2 setpoint
detector head wiring
• Display reading at -10% of full scale
or lower
• Defective components
) gas read-
2
• Alarm 1 LED is on
• Gas reading alternates with
ALARM-1 message
• If installed and set to
activate for alarm 1, strobe
flashes
• Alarm 2 LED is on
• Gas reading alternates with
ALARM-2 message
• If installed and set to
activate for alarm 2, strobe
flashes
• Fail LED is on
• FAIL message replaces
gas reading
• If installed, strobe flashes
NOTE: There is a 30
second delay on the fail
indications.
Low Power DC power source less than 18.5 volts. • Fail LED is on
• LowPower message and
actual voltage of incoming
DC power
Audible
Indication
• Pulsing tone
• Pulsing tone
• Steady tone
• None
1
If the Beacon 110 is in both an alarm 1 and an alarm 2 condition, both alarm LEDs
*
are on and the display alternates between the gas reading and the ALMS 1&2 message.
NOTE: You can select normally energized (N. EN) or normally de-energized (N. DE-
EN) alarm 1 and alarm 2 relay settings in Configuration Mode. The following
sections describe the standard factory setting for these relays which is
N. DE-EN.
The fail relay is set as normally energized in the firmware and is not useradjustable.
Beacon 110 Operator’s Manual 23
Alarm 1 Condition
Alarm 1 Condition Indications
When the gas reading reaches the alarm 1 setpoint, the Beacon 110 senses an alarm 1
condition. The Beacon 110 alerts you to an alarm 1 condition as follows:
• The alarm 1 LED turns on.
• The gas reading alternates with the ALARM-1 message.
• The buzzer sounds a pulsing tone.
• The alarm 1 relay energizes.
• If the optional strobe is installed and set to operate for alarm 1, it flashes.
Responding to an Alarm 1 Condition
1. Follow your established procedure for a low level combustible or toxic gas condition or
a decreasing oxygen concentration condition.
2. Oxygen alarms are factory set as self-resetting and will automatically clear when the
oxygen reading rises above the alarm 1 setpoint.
3. Alarms for all other gas types are factory set as latching. After the gas reading falls
below (or rises above for oxygen) the alarm 1 setpoint, press the reset switch to reset
the alarm 1 circuit. Resetting the alarm 1 circuit silences the buzzer, turns off the alarm
1 LED, returns the LCD to the normal operation screen, de-energizes the alarm 1
relay, and turns off the strobe if it is installed and set to operate for alarm 1.
NOTE: If the reset switch is pressed while the Beacon 110 is in an alarm 1 condition,
the buzzer will be silenced and the alarm 1 LED will flash. If the strobe is
installed and its alarm 1 operation is set to CanReset in Configuration Mode,
the strobe will turn off.
You cannot de-energize the alarm 1 relay until the gas reading falls below
(above for oxygen) the alarm 1 setpoint.
Alarm 2 Condition
Alarm 2 Condition Indications
When the gas reading reaches the alarm 2 setpoint, the Beacon 110 senses an alarm 2
condition. The Beacon 110 alerts you to an alarm 2 condition as follows:
• The alarm 2 LED turns on.
• The gas reading alternates with the ALARM-2 message.
• The buzzer sounds a pulsing tone.
• The alarm 2 relay energizes.
• If the optional strobe is installed and set to operate for alarm 2, it flashes.
NOTE: If the Beacon 110 is in both an alarm 1 and alarm 2 condition, both the alarm 1
and alarm 2 LEDs will be on, the gas reading will alternate with the ALMS 1&2
message, and both alarm relays will energize.
24 Beacon 110 Operator’s Manual
Responding to an Alarm 2 Condition
1. Follow your established procedure for a high level combustible or toxic gas condition
or an increasing oxygen concentration condition.
2. Oxygen alarms are factory set as self-resetting and will automatically clear when the
oxygen reading rises above the alarm 2 setpoint.
3. Alarms for all other gas types are factory set as latching. After the gas reading falls
below the alarm 2 setpoint, press the reset switch to reset the alarm circuit. Resetting
the alarm circuit silences the buzzer, turns off the Alarm 2 LED, returns the LCD to the
normal operation screen, de-energizes the alarm 2 relay, and turns off the strobe if it is
installed and set to operate for alarm 2.
NOTE: If the reset switch is pressed while the Beacon 110 is in an alarm 2 condition,
the buzzer will be silenced and the alarm 2 LED will flash but all other
indications will remain unchanged. If the strobe is installed and its alarm 2
operation is set to CanReset in Configuration Mode, the strobe will turn off.
You cannot de-energize the alarm 2 relay until the gas reading falls below the
alarm 2 setpoint.
Fail Condition
Fail Condition Indications
The Beacon 110 indicates a fail condition for any of the following:
• The detector head wiring is disconnected or incorrectly connected.
• The display reading is -10% of full scale or lower.
When the Beacon 110 senses a fail condition, it alerts you as follows:
• The fail LED turns on.
• The gas reading is replaced by the FAIL message.
• The buzzer sounds a steady tone.
• The fail relay de-energizes.
• If installed, the strobe flashes.
NOTE: The fail alarm has a 30 second delay.
Responding to a Fail Condition
NOTE: A fail condition cannot be reset using the reset switch.
1. Verify that the detector head wiring is correctly and securely connected.
2. If the detector head includes a replaceable plug-in sensor, verify that the replaceable
plug-in sensor is properly installed.
3. If necessary set the zero reading for your detector head as described in “Calibration
Mode” on page 34.
Beacon 110 Operator’s Manual 25
Low DC Power Alarm
Low DC Power Alarm Indications
This section describes the audible and visual indications for a low DC power condition and
suggests response to a low DC power condition. This condition only applies when DC
power is used as a primary or backup power source.
The Beacon 110 senses a DC low power condition when the DC power source is 18.5
volts or less.
WARNING: While in a low power condition, the Beacon 110 is not an active gas monitor.
When the Beacon 110 senses a low DC power condition, it alerts you as follows:
• The fail LED turns on.
• The message LowPower is indicated on the top line of the LCD and the input voltage
is displayed on the bottom line of the LCD.
NOTE: The low DC power alarm cannot be cleared using the reset switch.
When the DC input voltage increases to 19.0 volts, the low DC power alarm is cleared and
the Beacon 110 will begin its warm-up sequence.
Responding to a Low DC Power Condition
• If DC power is the primary power source:
1. For a temporary DC power source, disconnect primary DC power at the Beacon 110,
then connect a 24 VDC battery.
2. Determine and correct the cause of primary DC power loss.
When the DC power source rises above 19.0 volts, the Beacon 110 begins the warm
up process.
3. Verify that the Beacon 110 enters normal operation after its warm-up sequence.
• If DC power is the backup power source:
1. If a non-rechargeable battery is used for backup, replace the battery.
2. Determine and correct the cause of primary AC power loss. When backup DC or
primary AC power is restored, the Beacon 110 begins the warm up process.
If the Beacon 110 was purchased with the battery charging feature, when AC power is
restored, the Beacon 110 charges the backup battery with a charge current of
approximately 100 mA until it is fully recharged. Charge time varies depending on the
battery size and how much the battery was depleted. Once the battery is fully
charged, the Beacon 110 maintains the charge with the 100 mA charge current.
3. Verify that the Beacon 110 enters normal operation after its warm-up sequence.
26 Beacon 110 Operator’s Manual
Chapter 5: Configuration Mode
Enter
Config?
Overview
This chapter describes how to view and change Beacon 110 parameters using
Configuration Mode. It is accessed using the program buttons.
Configuration Mode includes a 5-minute time-out feature. If you do not press a control
button for 5 minutes, the Beacon 110 automatically returns to normal operation.
NOTE: If the Beacon 110 returns to normal operation because of a time-out, it enters a
warm-up period just as it does when it is first turned on.
If you are installing a new Beacon 110, it has been set up at the factory. Use
Configuration Mode only if you want to change the Beacon 110’s setup. If you
want to change the detector type see “Chapter 6: Input Mode” on page 30.
Viewing & Changing Beacon 110 Parameters
1. While in normal operation, simultaneously press and hold the UP/YES and ENTER
buttons for 5 seconds to enter Configuration Mode. Release the buttons when the
following screen appears.
2. If you want to exit Configuration Mode, press and release the DOWN/NO button and
the Beacon 110 will return to normal operation.
If you want to continue in Configuration Mode, press and release the UP/YES button.
The target gas and the full scale will be displayed for a few seconds before the first
adjustable parameter, the alarm 1 setpoint, is displayed.
3. If you want to change the currently displayed parameter, use the UP/YES and
DOWN/NO buttons to adjust it to the desired setting, then press ENTER to continue to
the next parameter.
If the currently displayed parameter is OK, press the ENTER button to proceed to the
next parameter.
Table 7 lists the Beacon 110 parameters you can set. Table 7 also lists the factory set
value for each parameter.
Beacon 110 Operator’s Manual 27
Table 7: Configuration Parameters
Parameter
(Factory Set Value)
ALARM-1 (level)
See the Beacon 110 Detector Head
Specification Sheet for the detector
head installed
ALARM-1 (activation)
(Decrease for oxygen, Increase for all
other types)
ALARM-1 (relay action)
(N. DE-EN)
ALARM-1 (relay reset)
(SELF-RST for oxygen, LATCH for all
other channel types)
A1Strobe
(None if no strobe is installed, Non
Reset if a strobe is installed)
Description
The gas reading at which the Beacon 110 initiates an alarm 1 condition.
Indicates if the alarm 1 circuit is activated by gas readings increasing
(Increase) or decreasing (Decrease) to the ALARM-1 Level.
If set as N. DE-EN, the alarm 1 relay is de-energized in normal operation
and energizes when an alarm 1 condition is initiated.
If set as N. EN, the alarm 1 relay is energized in normal operation and
de-energizes when an alarm 1 condition is initiated.
If set as LATCH, you must press the reset switch to reset the alarm 1 cir-
cuit after the alarm 1 condition passes.
If set as SELF-RST, the Beacon 110 automatically resets the alarm 1 cir-
cuit after the alarm 1 condition passes.
If set as None, there is no strobe operation.
If set as NonReset, it is not possible to turn off the strobe with the reset
switch while the Beacon 110 is in an alarm 1 condition.
If set as CanReset, the strobe can be turned off while the Beacon 110 is
in an alarm 1 condition by pressing the reset switch.
A1 OnDy (alarm 1 on delay)
(1 secs)
A1 OffDy (alarm 1 off delay)
(0 sec.)
ALARM-2 (level)
See the Beacon 110 Detector Head
Specification Sheet for the detector
head installed
ALARM-2 (activation)
(Increase)
ALARM-2 (relay action)
(N. DE-EN)
ALARM-2 (relay reset)
(SELF-RST for oxygen, LATCH for all
other channel types)
The amount of time the Beacon 110 delays activation of the alarm 1 cir-
cuit once an alarm 1 condition is initiated.
The amount of time the Beacon 110 delays turning off the alarm 1 circuit
once an alarm 1 condition passes. This parameter appears only if the
alarm 1 relay reset setting is set to SELF--RST.
The gas reading at which the Beacon 110 initiates an alarm 2 condition.
Indicates if the alarm 2 circuit is activated by gas readings increasing
(Increase) or decreasing (Decrease) to the ALARM-1 Level.
If set as N. DE-EN, the alarm 2 relay is de-energized in normal operation
and energizes when an alarm 2 condition is initiated.
If set as N. EN, the alarm 2 relay is energized in normal operation and
de-energizes when an alarm 2 condition is initiated.
If set as LATCH, you must press the ENTER button to reset the alarm 2
circuit after the alarm 2 condition passes.
If set as SELF-RST, the Beacon 110 automatically resets the alarm 2 cir-
cuit after the alarm 2 condition passes.
28 Beacon 110 Operator’s Manual
Table 7: Configuration Parameters (Continued)
Parameter
(Factory Set Value)
A2Strobe
(None if no strobe is installed, Non
Reset if a strobe is installed)
A2 OnDy (alarm 2 on delay)
(2 min for oxygen, 1 secs for all other
channel types)
A2 OffDy (alarm 2 off delay)
(0 sec.)
ZeroSupp
(0.0% of the detection range in terms
of the detection units for carbon
dioxide channel types, 0.5% oxygen
for oxygen channel type, 2.0% of the
detection range in terms of the
detection units for all other channel
types)
FILTER
(5 secs)
Description
If set as None, there is no strobe operation.
If set as NonReset, it is not possible to turn off the strobe with the reset
switch while the Beacon 110 is in an alarm 2 condition.
If set as CanReset, the strobe can be turned off while the Beacon 110 is
in an alarm 2 condition by pressing the reset switch.
The amount of time the Beacon 110 delays activation of the alarm 2 cir-
cuit once an alarm 2 condition is initiated.
The amount of time the Beacon 110 delays turning off the alarm 2 circuit
once an alarm 2 condition passes. This parameter appears only if the
alarm 2 relay reset setting is set to SELF-RST.
The zero suppression feature helps prevent “jumpy” readings near the
fresh air reading.
For example, if the zero suppression setting for a combustible detector is
2.0% LEL, the Beacon 110 will display a reading of 0% LEL for gas read-
ings from -2% LEL to 2% LEL.
The filter feature helps “smooth out” jumpy or noisy signals from the
detector. You can set the filter from 0 seconds to 60 seconds in 5 sec-
onds increments.
The displayed gas reading is the average reading over the previous time
period defined by the filter setting. So if the filter is set to 5 seconds, the
displayed gas reading is the average over the past 5 seconds.
CAL Time
(15 mins)
The calibration time-out sets the amount of time after the last button push
while in Calibration Mode that the Beacon 110 will wait before returning
to normal operation. If the calibration time-out is set to 15 mins, then
Beacon 110 will return to normal operation automatically 15 minutes after
the last button push.
4. When you have scrolled through all the adjustable parameters, SAVE IT? YES/NO
appears on the display.
5. To save the adjustments made, press and release the UP/YES button. Config Saved
is indicated on the display for a few seconds and the Beacon 110 returns to normal
operation.
If you do not wish to save the adjustments, press and release the DOWN/NO button.
The DO OVER? YES/NO message will display. Press and release the DOWN/NO
button. The ABORT? YES/NO message will display.Press the UP/YES button to
return to normal operation.
Beacon 110 Operator’s Manual 29
Chapter 6: Input Mode
Select
Input?
Overview
This chapter describes how to use Input Mode to select the Beacon 110’s detector head
input type and the gas type. The detector head input type determines whether a direct
connect type or a 4 - 20 mA type of detector head will be used and the gas type
determines the target gas and detection range.
Input Mode includes a 5-minute time-out feature. If you do not press a button for 5
minutes, the Beacon 110 automatically returns to normal operation.
NOTE: If the Beacon 110 enters normal operation because of a program time-out, it
enters a warm-up period just as it does when it is first turned on.
Selecting the Detector Head Input and Gas Type
1. While in normal operation or during the warm-up sequence, press and hold the UP/
YES and DOWN/NO buttons for five seconds. Release them when the following
screen appears.
2. If you want to exit Input Mode, press and release the DOWN/NO button. The Beacon
110 will indicate NO CHANGE and return to normal operation without making any
changes to the detector head input type or gas type.
If you want to continue in Input Mode, press and release the UP/YES button. The top
display line will indicate Input? and the bottom display line will indicate the detector
head input type choice.
3. Use the DOWN/NO button to scroll through the choices of input types. Table 8 below
lists the choices of input type for the Beacon 110.
30 Beacon 110 Operator’s Manual
Table 8: Beacon 110 Detector Head Input Types
Detector Head Input Type Description
OXY DIR An OXY DIR detector head is an oxygen detector head in which
the oxygen detector is wired to the Beacon 110 with 2 wires
using the OXY GRN and WHT terminals from the detector/
transmitter terminal strips. All calibration adjustments are made
at the Beacon 110.
TOX DIR A TOX DIR detector head is connected to the Beacon 110 with
2 wires using the AMP + and S terminals from the detector/
transmitter terminal strips. All calibration adjustments are made
at the Beacon 110.
LEL DIR An LEL DIR detector head is a combustible gas detector head
in which the combustible gas detector is wired to the Beacon
110 with 4 wires using the LEL BLK, GRN, WHT, and RED terminals from the detector/transmitter terminal strips. All calibra-
tion adjustments are made at the Beacon 110.
4 - 20 mA A 4 - 20 mA detector head is connected to the Beacon 110 with
2 or 3 wires, depending on the detector head model, using the
AMP +, S, and - terminals on the detector head terminal strip.
All calibration adjustments are made at the detector head.
4. When the desired detector head input type is on the display, press and release the
UP/YES button. The display will ask SAVE IT? YES/NO.
5. If you want to discard the detector head input type change, press and release the
DOWN/NO button. The display will ask DO OVER? YES/NO. Press the DOWN/NO
button. The display will ask ABORT? YES/NO. Press the UP/YES button. The display
will indicate Aborting INPUT and then NO CHANGE before indicating Select
GasType?.
NOTE: If your Beacon 110 is configured as direct connect oxygen and the detector
head input type selection is aborted, the Beacon 110 will return to normal
operation after indicating NO CHANGE.
If you want to save the input type selection, press and release the UP/YES button.
The display will indicate Input Updated for a few seconds if you changed the input
type and then the display will indicate Gas Type? on the top display line and the gas
type choice on the bottom display line. If you did not change the input type from the
current type, the display indicates NO CHANGE and then Select GasType?.
NOTE: If you selected OXY DIR, the Beacon 110 will enter Configuration Mode after
pressing and releasing the UP/YES button since the gas type and full scale are
pre-defined for a direct connect oxygen type input. Skip to step 10.
Beacon 110 Operator’s Manual 31
6. If you changed the input type above, you must select a gas type. Proceed to step 7.
If you did not change the input type, you can decide if you want to select the gas type.
If you do not want to select the gas type, press and release the DOWN/NO button.
The display will indicate NO CHANGE and the Beacon 110 will return to normal
operation with the previous setup. If you do want to select the gas type, press the UP/
YES button and the display will indicate GasType? on the top display line and the gas
type choice on the bottom display line.
7. Use the DOWN/NO button to scroll through the choices of gas types. When you come
to the desired choice, press the UP/YES button to select it.
If you selected one of the defined gas types such as OXYGEN or CO, the display will
ask SAVE IT? YES/NO. Proceed to step 8.
If you selected the OTHER gas type, the display will indicate GAS NAME on the top
display line and bottom line will be blank with the cursor flashing in the far left.
Proceed to step 9.
8. If you did not change the input type above and want to discard the gas type selection,
press and release the DOWN/NO button. The display will ask DO OVER? YES/NO.
Press the DOWN/NO button. The display will ask ABORT? YES/NO. Press the UP/
YES button. The display will indicate Aborting Gas Type, then NO CHANGE and the
Beacon 110 will return to normal operation.
If you want to save the gas type selection, press and release the UP/YES button. The
display will indicate Gas Type Updated, show the target gas and the detection range
for a few seconds, then the Beacon 110 will enter Configuration Mode so that the
parameter settings in Configuration Mode can be verified or changed.
9. Perform the following steps to define the gas name, detection range, and units if you
selected the OTHER gas type.
•With GAS NAME on the top display line and the cursor flashing in the far left on
the bottom display line, use the UP/YES and DOWN/NO buttons to select a
character for the first character of the gas name and press ENTER to save it.
The cursor will move to the next position. Repeat this process until the last
character is saved.
• The display will ask SAVE IT? YES/NO. Press and release the UP/YES button.
The display will indicate RANGE . . . on the top display line prompting you to
enter a full scale value and the bottom line will be blank with the cursor flashing
on the far left.
• Use the UP/YES and DOWN/NO buttons to enter a number for the first digit of
the full scale value and press ENTER to save it. The cursor will move to the next
position. Repeat this process until you have entered the full scale value, for
example 30.0, leaving extra positions blank before pressing ENTER.
• When you have pressed ENTER for the last time, the display will ask SAVE IT?
YES/NO. Press and release the UP/YES button. The display will indicate
UNITS? on the top line and the units choice on the bottom line of the display.
• Use the DOWN/NO button to scroll through the choices until you find the
desired units. (If you select the OTHER choice, perform the same procedure
described above for entering the gas name and range.)
• Press the UP/YES button to save the units. The Beacon 110 will proceed to
Configuration Mode.
32 Beacon 110 Operator’s Manual
10. While in Configuration Mode press and release the ENTER button to accept the
displayed parameter setting and move to the next one. Use the UP/YES and DOWN/
NO buttons to adjust a setting. See “Chapter 5: Configuration Mode” on page 27 for a
complete description of Configuration Mode.
11. When you have reviewed and accepted the last item in Configuration Mode by
pressing the ENTER button, display will ask SAVE IT? YES/NO.
12. To save the configuration settings, press and release the UP/YES button.The display
will indicate Config Saved and the Beacon 110 will begin its warm-up sequence.
To discard the settings and review them again, press the DOWN/NO button. The
display will ask DO OVER? YES/NO. Press the UP/YES button and the display will
indicate Re-do Config, then display the target gas and the detection range for a few
seconds before returning to Configuration Mode. Repeat steps 6 - 8 until the settings
are as desired.
13. After the Beacon 110 completes its warm-up sequence, the display will indicate CAL
NEEDED, the buzzer will sound a steady tone, the strobe (if installed) will flash, the
fail relay will activate, and the fail LED will turn on. Since the input type and/or gas
type has been changed, a successful calibration must be performed before the
Beacon 110 can enter normal operation.
NOTE: If the input type was set as 4 - 20 mA, the Beacon 110 will enter normal
operation since calibration is done at the detector for a 4 - 20 mA type input.
14. Press and release the UP/YES button to enter Calibration Mode. Normally, you must
hold the UP/YES button for 5 seconds to enter Calibration Mode, but since a
calibration is required, only a momentary push is needed to enter Calibration Mode
after changing the gas type.
15. See “Calibration Mode” on page 34 for calibration instructions.
NOTE: When calibrating a Beacon 110 after changing the gas type, the Beacon 110
will not ask if you want to calibrate, or whether you want to perform a fresh air
adjustment, span adjustment or zero adjustment. Since a complete calibration
is required, the calibration sequence will proceed without asking if you want to
perform certain operations.
Beacon 110 Operator’s Manual 33
Chapter 7: Maintenance
Overview
This chapter describes how to calibrate the Beacon 110 using Calibration Mode, replace
the AC fuses, and preventive maintenance procedures for the Beacon 110. It includes a
troubleshooting guide for problems you may encounter with the Beacon 110.
Calibration Frequency
Although there is no particular calibration frequency that is correct for all applications, a
calibration frequency of every 3 to 6 months is adequate for most Beacon 110
applications. Unless experience in a particular application dictates otherwise, RKI
Instruments, Inc. recommends a calibration frequency of every 3 months.
If an application is not very demanding, for example detection in a clean, temperature
controlled environment where a combustible or toxic gas is not normally present, and
calibration adjustments are minimal at calibration, then a calibration frequency of every 6
months may be adequate.
If an application is very demanding, for example if a combustible or toxic gas is present
often and in significant concentrations or the environment is not well controlled, then more
frequent calibration than every 3 months may be necessary. For combustible gas
detection, if potential catalyst poisons are known or likely to be present, more frequent
calibration than every 3 months will be necessary.
Calibration Mode
Calibration Mode is used to calibrate the Beacon 110’s detector head. The Beacon 110
can support both direct connect (internal amp) and 4-20 mA transmitter (remote amp)
detector heads. Each type has special considerations when calibrating:
• Direct connect detector head.
If a direct connect detector head is installed, then all calibration adjustments are made
at the Beacon 110 after calibration gas is applied to the detector.
• 4-20 mA transmitter detector head.
If a 4-20 mA transmitter detector head is installed, then all calibration adjustments are
made at the detector head while calibration gas is being applied to the detector.
Calibration Gas Response Memory Feature
When a direct connect detector head is installed, the Beacon 110 has the capability to
“remember” the detector’s response to the calibration gas after the gas is removed from
the detector during the fresh air or span (zero for an oxygen detector) adjustment
procedure. This feature enables one person to perform calibration if the detector is
mounted remotely from the Beacon 110. When zero air is applied to the Beacon 110
during a fresh air adjustment, the Beacon 110 will freeze the display reading at the lowest
(highest for an oxygen detector) response and the Beacon 110 will continue to display this
reading and retain it in its memory until the fresh air adjustment procedure is completed.
34 Beacon 110 Operator’s Manual
When calibration gas is applied to the Beacon 110 during a span (zero for an oxygen
Yes
Fresh Air
Adjust?
Yes/No
Yes
No
Normal Op eration
No
Press
UP/YES
Yes
Press ENTER to
Accept Span
Setting
Calibrate?
Yes/No
Adj ust Span
Setting
Fresh Air Adjust
Sp an Y/ N ?
No
Apply Gas to
Detector
detector) adjustment, the Beacon 110 will freeze the display reading at the highest (lowest
for an oxygen detector) response to the calibration gas. The calibration gas can then be
removed and the Beacon 110 will continue to display this reading and retain it in its
memory until the span (zero for an oxygen detector) adjustment procedure is completed.
Calibration Program Flow
Figure 12 and Figure 13 below illustrate the general flow of the Calibration Program for
the two detector head types. See the next section, “Entering Calibration Mode”, for
instructions to enter Calibration Mode. In general, if a question mark, “?”, is part of the
display text, use the UP/YES or DOWN/NO button to respond. Use the UP/YES and
DOWN/NO buttons to increase or decrease a displayed gas reading when performing a
span (zero for oxygen) operation, and use the ENTER button to accept a displayed value
and continue.
Beacon 110 Operator’s Manual 35
Figure 12: Direct Connect Detector Head
Figure 13: 4 - 20 mA Transmitter Detector Head
No
Press ENTER
When Done
Calibrate?
Yes/No
Normal Operation
Press
UP/YES
Calibrate at
Detector Head
Yes
Calib?
YES/NO
Entering Calibration Mode
WARNING: The Beacon 110 is not an active gas monitoring device during the calibration
procedure. The 4-20 mA output signal will “freeze” at 3.5 mA (17.4 mA if an
oxygen detector head is installed) and all relays will remain in their non-alarm
state while the Beacon 110 is in Calibration Mode. The 4 - 20 mA output si gnal
will not indicate current readings an d the relays will not resume operating
normally until the Beacon 110 is in normal operation again.
1. While in normal operation, press and hold the UP/YES button for 5 seconds to enter
Calibration Mode. Release the button when the following screen appears.
2. If you want to exit Calibration Mode, press and release the DOWN/NO button. The
Beacon 110 will indicate Leaving CAL Mode and the Beacon 110 will return to normal
operation.
If you want to continue with calibration, press and release the UP/YES button. If a
direct connect detector head is installed, the display will indicate the target gas and
CAL Mode for a few seconds before showing FreshAir Adjust?. If a 4 - 20 mA
transmitter detector head is installed, the display will alternate between CAL AT AMP
and the current gas reading.
NOTE: The Beacon 110 can support one detector head which is either a 4-20 mA
detector head or a direct connect detector head. The following examples
illustrate each type. See the detector head operator’s manual for calibration
information and procedures specific to your detector head.
36 Beacon 110 Operator’s Manual
Calibrating a 4 - 20 mA Detector Head
If a 4-20 mA detector head is installed on the Beacon 110, proceed as follows:
1. The display will be alternating between CAL AT AMP and the current gas reading as
described above.
2. Verify that the detector head is in a fresh-air environment. (If necessary, use a zeroemission air cylinder, also known as zero air, to introduce a fresh-air sample when
adjusting the fresh air reading below.)
3. Adjust the detector head’s fresh air reading (sometimes referred to as the zero
reading for non-oxygen detector heads). See the detector head operator’s manual for
instructions on how to adjust the fresh air reading.
4. Apply calibration gas to the detector head’s detector and adjust the detector head’s
span reading (zero reading for oxygen). See the detector head’s operator’s manual for
instructions on how to adjust the span reading (zero reading for oxygen).
5. Press and release the ENTER button to indicate that you are done with calibrating the
detector head. The display will indicate Leaving CAL Mode for a few seconds.
6. The display will now alternate between the normal operation screen and the message
REMOVE CAL GAS for 1 minute. If the calibration gas has not been removed from
the detector, remove it now to avoid unwanted alarms.
During this 1 minute period, the 4 - 20 mA output will remain fixed at 3.5 mA (17.4 mA
if an oxygen detector head is installed) and the relays will remain in their non-alarm
state to avoid unwanted alarms while the calibration gas clears from the detector. At
the end of the 1 minute period, the REMOVE CAL GAS message will stop appearing
and the Beacon 110 will return to normal operation.
Calibrating a Direct Connect Detector Head
If a direct connect detector head is installed on the Beacon 110, proceed as follows:
1. The display will indicate FreshAir Adjust? as described above in “Entering
Calibration Mode”.
2. If you want to skip adjusting the fresh air reading, press and release the DOWN/NO
button. The display will indicate SPAN w/Cal Gas? (ZERO w/Cal Gas? for an oxygen
detector head). Skip the next step and continue with step 4.
If you want to continue with adjusting the fresh air reading, press and release the UP/
YES button. ENTER will alternate with FreshAir on the top display line and the
current gas reading will be on the bottom display line.
3. If the detector is in a fresh air environment, press and release the ENTER button. The
Beacon 110 will perform a fresh air adjustment and the display will indicate SPAN w/
Cal Gas? (ZERO w/Cal Gas? for an oxygen detector head).
If you suspect the detector area is not a fresh air environment, apply zero air to the
detector before pressing the ENTER button to perform the fresh air adjustment. See
the detector head operator’s manual for instructions to apply zero air to the detector.
The Beacon 110 will freeze the display reading at the lowest level reached while
applying zero air (highest level for an oxygen detector head). After applying zero air
for the required amount of time, usually two minutes, remove the zero air source from
the detector. Press and release the ENTER button at the Beacon 110. The Beacon
110 will perform a fresh air adjustment and the display will indicate SPAN w/Cal Gas?
(ZERO w/Cal Gas? for an oxygen detector head).
Beacon 110 Operator’s Manual 37
4. If you want to skip adjusting the span (zero for an oxygen detector head) setting, press
and release the DOWN/NO button. The display will indicate Leaving Cal Mode and
the Beacon 110 will return to normal operation.
If you want to continue with adjusting the span setting, press and release the UP/YES
button. APPLY will alternate with SPAN Gas (ZERO Gas for an oxygen detector
head) on the top display line and the current gas reading will be on the bottom display
line.
5. Apply calibration gas to the detector. See the detector head operator’s manual for
instructions on how to apply gas to the detector.
When calibration gas is applied, the Beacon 110 will freeze the display gas reading at
the highest level reached while the gas was applied (lowest for an oxygen detector
head).
6. After applying calibration gas for the required amount of time, usually two minutes,
remove the gas from the detector. The Beacon 110 will continue to display the
maximum gas response (lowest for an oxygen detector head) on the display and
retain the response level in its memory.
7. Adjust the gas reading up or down to match the calibration gas cylinder concentration
by using the UP/YES and DOWN/NO buttons, then press and release the ENTER
button.
NOTE: If calibrating an oxygen detector head and a cylinder other than a 100%
nitrogen (0% oxygen) cylinder is used to set the zero reading, such as a
cylinder with 12% oxygen, set the zero reading to match the cylinder’s oxygen
concentration.
8. The Beacon 110 will perform a span (zero for an oxygen detector head) operation.
The display will indicate SPAN Gas PASS (ZERO Gas PASS for an oxygen detector
head) for a few seconds, then indicate SPAN Gas SAVED (ZERO Gas SAVED for an
oxygen detector head) before indicating Leaving CAL Mode for a few seconds.
9. The display will now alternate between the normal operation screen and the message
REMOVE CAL GAS for 1 minute. If the calibration gas has not been removed from
the detector, remove it now to avoid unwanted alarms.
During this 1 minute period, the 4 - 20 mA output will remain fixed at 3.5 mA (17.4 mA
if an oxygen detector head is installed) and the relays will remain in their non-alarm
state to avoid unwanted alarms while the calibration gas clears from the detector. At
the end of the 1 minute period, the REMOVE CAL GAS message will stop appearing
and the Beacon 110 will return to normal operation.
10. Store the components of the calibration kit in a safe place.
38 Beacon 110 Operator’s Manual
Replacing the Fuses
The Beacon 110 has two replaceable AC fuses.
NOTE: To replace other components of the Beacon 110, contact RKI Instruments, Inc.
for further information.
1. Turn off or unplug all incoming power to the Beacon 110.
2. Open the housing door of the Beacon 110, then place the power switch in the OFF
position.
3. Locate the vertical fuse holders above the AC In Terminal Strip. The AC fuses are
labelled F1 and F2 on the main PCB silkscreen.
4. Use a flat-blade screwdriver to rotate the applicable fuse holder 1/4 turn
counterclockwise. The fuse holder releases from the socket.
5. Remove the fuse holder from the socket, then remove the fuse from the fuse holder.
CAUTION: Verify that the replacement fuse is the same type and rating as the fuse you
are replacing. See the “Parts List” on page 42 for correct fuse.
6. Install the appropriate replacement fuse in the fuse holder, then place the fuse holder
in the socket.
7. Push the fuse holder into the socket, then turn the holder 1/4 turn clockwise to secure
it in the socket.
8. Plug in or turn on all incoming power to the Beacon 110.
9. Place the Beacon 110’s power switch in the ON position, then verify that the Beacon
110 completes its warm-up sequence and enters normal operation.
10. Close and secure the housing door.
Preventive Maintenance
Preventive maintenance of the Beacon 110 consists of daily, monthly, and quarterly
procedures to ensure that the detector head is operating properly. See the detector head
operator’s manual for preventive maintenance procedures that apply to the detector head
supplied with your Beacon 110.
Beacon 110 Operator’s Manual 39
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the Beacon 110.
NOTE: This troubleshooting guide describes controller problems only. See the detector
head operator’s manual for troubleshooting procedures that apply to the
detector head supplied with your Beacon 110.
Table 9: Troubleshooting the Beacon 110
Condition Symptom(s) Probable Causes Recommended Action
No Power • The display
Frequent or
Suspect
Alarms
backlight is off and
the display screen is
blank.
• The Beacon 110
alerts you to
frequent or suspect
alarms while the
detector head’s
fresh air readings
remain on zero
(20.9 for oxygen).
• The power wiring is
disconnected or
misconnected.
• One or both AC fuses
is blown.
• The display cable is
disconnected or
misconnected.
• The Beacon 110 is
experiencing false
readings due to RFI or
EMI.
• The detector head
wiring is
disconnected,
misconnected, or
intermittent.
1. Verify that the wiring to the power
source is correct and secure.
2. At the Beacon 110, verify that the
wiring to the AC terminals is correct
and secure.
3. Check the continuity of the AC fuses.
4. Verify that the display cable is
connected.
The display (ribbon) cable plugs into a
connector on the top edge of the
control PCB and on the main PCB
below the control PCB.
5. If the power difficulties continue,
contact RKI for further instruction.
1. Verify that the detector head wiring is
properly shielded (see the detector
head operator’s manual).
2. Verify that the detector head wiring is
correct and secure.
3. Verify that power and detector head
wiring is routed through separate
conduit hubs on the bottom of the
Beacon 110 housing.
4. Increase the alarm on delay setting in
Configuration Mode.
5. If the frequent or suspect alarm
difficulties continue, contact RKI for
further instruction.
40 Beacon 110 Operator’s Manual
Table 9: Troubleshooting the Beacon 110 (Continued)
Condition Symptom(s) Probable Causes Recommended Action
Flickering
Display
Buzzer Not
Working
Reset Switch
Not Working
• The display reading
flickers often.
• The buzzer does not
sound an audible
alarm during alarm
conditions.
• The buzzer sounds
weak or broken.
• The buzzer does not
silence when you
press the reset
switch.
• The alarm 1 or
alarm 2 circuit does
not reset when you
press the reset
switch after the
alarm condition
passes.
• The Beacon 110 is
experiencing false
readings due to RFI or
EMI.
• The noise filter setting
is too low.
• The zero suppression
setting is too low.
• The display screen is
malfunctioning.
•The buzzer is
disconnected or
misconnected.
•The buzzer is
malfunctioning.
• The reset switch is
disconnected or
misconnected.
• The reset switch is
malfunctioning.
1. Verify that the detector head wiring is
properly shielded (see the detector
head operator’s manual).
2. Verify that the detector head wiring is
correct and secure.
3. Verify that power and detector head
wiring is routed through separate
conduit hubs on the bottom of the
Beacon 110 housing.
4. Increase the filter setting in
Configuration Mode.
5. Increase the zero suppression setting
in Configuration Mode.
6. If the display difficulties continue,
contact RKI for further instruction.
1. Verify that the wiring to the ALARM
BUZZER + & - terminals of the
Controller Terminal Strip is correct
and secure.
2. If the buzzer difficulties continue,
contact RKI for further instruction.
1. Verify that the wiring to the ALARM
RESET (2) terminals of the Alarm/
Controller Terminal Strip is correct
and secure.
2. If the reset switch difficulties continue,
contact RKI for further instruction.
If Installed,
Option Strobe
Not Working
Beacon 110 Operator’s Manual 41
• The strobe does not
flash when an alarm
1 or alarm 2
condition occurs.
• The strobe does not
flash when a fail
condition occurs.
• The strobe is not
setup to activate in an
alarm 1 or alarm 2
condition.
• The strobe is not
connected to the
strobe terminal strip
properly.
• The strobe is
malfunctioning.
1. Verify that the strobe is setup properly
for the desired alarm operation in
Configuration Mode. See “Chapter 5:
Configuration Mode” on page 27.
2. Verify that the strobe is wired properly
to the strobe terminal strip. The red
wire goes to the + terminal and the
black wire goes to the - terminal.
Parts List
Table 10 lists replacement parts and accessories for the Beacon 11 0 .
Table 10: Parts List
Part Number Description
18-0107RK Conduit Hub (3/4 in.)
43-0440RK Reset Switch
43-4165RK AC Fuse, 1/4” x 1 1/4”, fast acting, 3A, 250 V
51-0065RK-01 Replacement lens assembly for strobe
51-0066RK Strobe, red, 24 VDC, NEMA 4X
51-0096RK Strobe/horn, 10-33 VDC, NEMA 4X
52-1016RK Buzzer
71-0110RK Beacon 110 Gas Monitor Operator’s Manual (this document)
42 Beacon 110 Operator’s Manual
Appendix A: Control Button Quick Reference Guide
The Beacon 110’s control buttons and reset switch allow access to operational modes,
resetting of alarms, and display of the Information Screen. Table 11 shows which button
combinations perform these functions and which parameters are available for adjustment
while in the operational modes. While in these modes, display prompts showing a “?”
require you to respond by pressing either the UP/YES (for yes) or DOWN/NO (for no)
button. To change parameter settings, use the UP/YES and DOWN/NO buttons to get the
desired setting, then press and release the ENTER button to accept the setting.
Table 11: Control Button Quick Reference Chart
Mode Entered or
Function Performed
Alarm Reset Press and Release
Min/Max Press and Hold the
Show Information Screen Press and Hold
Calibration Mode Press and Hold
Configuration Mode Press and Hold
Button
Combination
the Reset Switch
Reset Switch for 3
seconds
DOWN/NO
UP/YES for 5 sec-
onds
UP/YES & ENTER
for 5 seconds
Adjustable or Viewable Parameters
n/a
Minimum and maximum readings can be viewed
and reset.
• Operating DC Voltage. For AC powered units,
this is the DC voltage from the power supply.
• Beacon 110 Version/Revision Information
• Fresh Air Adjust
• Span (or Zero for Oxygen) Adjust with
Calibration Gas
• Alarm Levels
• Increasing or Decreasing Alarms
• Normally Energized or Normally De-energized
Relays
• Latching or Self-resetting Alarms
• Strobe operation (if installed)
• Alarm On Delay
• Alarm Off Delay (if self-resetting)
• Zero Suppression
• Noise Filter
• Calibration Time-out Period
Input Mode Press and Hold
UP/YES and
DOWN/NO for 5
seconds
Beacon 110 Operator’s Manual 43
Define Detector Head Input
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