RKI Instruments 72-2102-07 User manual

www.rkiinstruments.com
72-2102-07
Beacon 200
Operator’s Manual
Part Number: 71-0364
Revision: A
Released: 12/11/17

72-2102-07 Beacon 200 Operator’s Manual
WARNING
Read and understand this instruction manual before operating
instrument. Improper use of the 72-2102-07 Beacon 200 could
result in bodily harm or death.
Periodic calibration and maintenance of the 72-2102-07 Beacon
200 is essential for proper operation and correct readings. Please
calibrate and maintain this 72-2102-07 Beacon 200 regularly!
Frequency of calibration depends upon the type of use you have
and the sensor types. Typical calibration frequencies for most
applications are between 3 and 6 months, but can be required
more often or less often based on your usage.

72-2102-07 Beacon 200 Operator’s Manual
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 as follows:
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.
THIS WARRANTY IS EXPRESSLY IN LIEU OFANYAND 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.
a) Absorbent cartridges d) Batteries
b) Pump diaphragms and valves e) Filter elements
c) Fuses

72-2102-07 Beacon 200 Operator’s Manual
Table of Contents
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About the Beacon 200 Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 2: Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
External Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Internal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 3: Installation and Start Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Mounting the Beacon 200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Wiring the Beacon 200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Starting Up the Beacon 200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chapter 4: Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Recorder Output Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Alarm Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Viewing & Resetting Min/Max Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 5: Channel Control and Setup Program . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Enable/Disable Channel(s) Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configure Channel Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
View System Information Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

72-2102-07 Beacon 200 Operator’s Manual
Chapter 6: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Calibration Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Adjusting Strobe/Horn Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Replacing Components of the Beacon 200. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

1 • 72-2102-07 Beacon 200 Operator’s Manual
Chapter 1: Introduction
Overview
This chapter briefly describes the 72-2102-07 Beacon 200. This chapter
also describes the 72-2102-07 Beacon 200 Operator’s Manual (this
document). Table 1 at the end of this chapter lists the specifications for the
72-2102-07 Beacon 200.
About the Beacon 200
The 72-2102-07 Beacon 200 is a fixed-mounted, continuous-monitoring
gas detection instrument. This gas monitor is capable of detecting gas at
two locations. It includes an 8 foot AC power cord and 2 H2S detector
heads each on a user-defined length of cable.
The Beacon 200 displays the current gas readings on an LCD display
which is visible through the window in the cover (front face) and provides a
4 - 20 mA signal which indicates the target gas reading for use by a
recording device or programmable controller. Three sets of relay contacts,
two controlled by the gas alarms and one by the fail alarm, rated at 115
VAC 10 amps are available for controlling devices such as lights or horns
or for controlling higher rated relays. The alarm 1 relay is factory wired to
the strobe/horn and is not available for field use.
Two instrument programs allow you to display and change channel and
calibration settings. They are the Channel Control & Setup Program and
the Calibration Program.

72-2102-07 Beacon 200 Operator’s Manual • 2
About this Manual
The Beacon 200 Gas Monitor Operator’s Manual uses the following
conventions for notes, cautions, and warnings.
NOTE: Describes additional or critical information.
CAUTION: Describes potential damage to equipment.
WARNING: Describes potential danger that can result in injury or
death.
Caution: refer to accompanying documentation
~ Vac (AC voltage)
Vdc (DC voltage)
!

3 • 72-2102-07 Beacon 200 Operator’s Manual
Specifications
Table 1 lists specifications for the 72-2102-07 Beacon 200.
WARNING: When using the Beacon 200, you must follow the
instructions and warnings in this manual to assure
proper and safe operation of the Beacon 200 and to
minimize the risk of personal injury. Be sure to maintain
and periodically calibrate the Beacon 200 as described in
this manual.
Table 1: 72-2102-07 Beacon 200 Specifications
Description Specification
Input Power 115/220V ~ ±10%, 50/60Hz, 0.5/0.3A1
or
24 V +10% -8%, 0.6A
Construction (housing) Fiberglass/polyester with lexan window (NEMA 4X)
Controller Dimensions 21.0 in. H x 8.5 in. W x 7.00 in. D
(533 mm H x 216 mm W x 178 mm D)
Weight 20 lbs.
Environmental Conditions • -20°C to 50°C (-4°F to 122°F) max. ambient
• Maximum humidity of 80% relative
Relays • Relay contacts rated for 10A @ 115/220V~ resistive or10A @ 30V
resistive
• SPDT Form C
User Controls • Reset switch
• Program buttons: ESCAPE, UP/YES, DOWN/NO, and ENTER
Detection Range 0 to 100 PPM (parts per million) H2S
Alarm 1 Setpoint 10 ppm2
Alarm 2 Setpoint 50 ppm2
Response Time 90% in 30 seconds
Accuracy ± 5% of reading or ± 2 ppm H2S (whichever is greater)
*1The AC voltage input is factory set. The standard input is 115 V~.
*2The alarm setpoints shown are factory settings but they can be changed in the Channel Control and Setup
Program.

72-2102-07 Beacon 200 Operator’s Manual • 4
Chapter 2: Description
Overview
This chapter describes external and internal components of the Beacon
200.
Figure 1. Beacon 200 Component Location
Buzzer
COM-FAIL
NO NC C
CH2-A1 NO NC CNO NC C COM-A1CH2-A2
NO NC C
CH1-A1
Main PCB
Display PCB
Program
Button (4)
AC In
Terminal
Strip
Fuses, AC
Fail LED
Pilot LED
NO NC C
COM-A2
Controller
Terminal Strip
Alarm Terminal Strip
Relays
Detector/
Transmitter
Terminal Strip,
Channel 1
Alarm
1LED
Display Contrast
Adjust Pot
Detector/
Transmitter
Terminal Strip,
Channel 2
Button
Repeater
Buzzer
Fuse, DC
Mounting Foot, 4X Horn/Strobe
AC PowerCord
Reset
Switch
Conduit Hub (3X)
Power Switch
NO NC CNO NC C
CH1-A2
Display
Alarm 2
LED
H2S Detector Cable Channel2 (user-defined cable length)
H2S Detector Cable Channel1
(user-defined cable length)

5 • 72-2102-07 Beacon 200 Operator’s Manual
External Description
This section describes the housing and all external components of the
Beacon 200. For the purposes of this description, the housing door is
considered the front of the monitor.
Housing
The Beacon 200’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 windows
in the housing door. Four mounting feet are attached to the back of the
housing (one at each corner). The mounting feet allow you to install the
housing to a vertical surface. Three conduit hubs on the bottom of the
housing are for external wiring connections.
CAUTION: Only use the three 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 head and
power wiring through the same conduit hub.
Reset Switch
The reset switch is on the bottom of the housing. It is in front of the conduit
hubs. The reset switch serves three functions:
• Resets the alarm circuits for “latched” alarms after an alarm 1 or alarm 2
condition passes.
You can set each channel for latched or self-resetting alarms in the
Channel Control & Setup Program.
• Silences the buzzer during an alarm 1 or alarm 2 condition. You cannot
silence failure alarms.
• Displays and resets the minimum and maximum gas concentration
values.
Buzzer
The buzzer is on the bottom of the housing. It is on the far right. The buzzer
sounds audible alarms to warn you of gas alarms and instrument failures.

72-2102-07 Beacon 200 Operator’s Manual • 6
H2S Detector Junction Boxes and Cables
Each of the two H2S detectors consists of a junction box with a mounting
bracket, the detector, and the calibration cup/splash guard.
The two H2S detectors are factory wired through the left and middle cable
bushings of the Beacon 200 and has a user-defined length of cable for
remote installation. The mounting bracket at the top of each junction box is
used to mount the junction box. The junction box protects the detector
wiring connections. Three spacers installed on the back of the junction box
control the distance of the junction box from a mounting surface and
ensure that there is enough room to perform a calibration. A cover on the
front of the junction box allows access to the interior of the junction box.
Cable Bushing
To Beacon 200
Mounting Bracket
H2S Detector
(Factory Wired)
Calibration Cup/
Splash Guard
Terminal Strip
Figure 2. H2S Junction Box Component Location

7 • 72-2102-07 Beacon 200 Operator’s Manual
The detector housing body protects the sensing components within the
housing body. Use the removable cap near the bottom of the housing body
to access the sensor for maintenance or replacement. The cap protects the
sensor from damage and includes a flame arrestor which contains any
sparks which may occur within the detector housing body. A cap gasket
seals the interface between the housing body and cap. A flame arrestor
guard is permanently bonded to the cap.
The calibration cup/splash guard is screwed onto the bottom of the flame
arrestor guard.
The sensor is secured within the sensor housing by four pins. Through a
series of chemical and electrical reactions, the sensor produces an
electrical output that corresponds to the detection range of the detector. A
pre-amplifier, located between the sockets and two interconnect wires,
conditions the sensor’s signal before the signal reaches the controller. A
rubber boot and spacer are installed on the sensor face to ensure that the
sensor remains plugged into the detector housing body.
AC Power Cord
An 8 foot AC power cord is factory-wired through the right cable bushing of
the Beacon 200. One end of the cable is connected to the AC In terminal
strip.
Cap Gasket
Detector Housing Body
Calibration Cup/
Splash Guard
Flame
Arrestor
Guard
Detector
Housing Cap
H2S Plug-in Sensor
Rubber Boot
Spacer
Figure 3. H2S Detector Component Location

72-2102-07 Beacon 200 Operator’s Manual • 8
Internal Description
This section describes the internal components of the Beacon 200. See
Figure 1 on page 4 for a view of the internal components.
Display Printed Circuit Board (PCB)
The display PCB is mounted to the power supply mounting plate which is in
turn mounted to the main PCB. The power supply mounting plate and main
PCB are described below. The display PCB includes the display, the status
lights, and the program buttons.
Display
The display simultaneously indicates the channel number, current gas
reading, measuring unit, and target gas of all active channels.
The display also indicates messages, settings, and other data when you
are operating the instrument programs.
J1
UP/YESButton
ENTER Button
DOWN/NOButton
Display Cable Connector
PILOT Light
FAIL Light
Display Screen
Button Repeater
Buzzer
AL ARM 2 Li ght
ESCAPE Button
ALARM 1 Li gh t
Display Contrast
Ad j us t Pot
Figure 4. Display Board Component Location

9 • 72-2102-07 Beacon 200 Operator’s Manual
Status Lights
The Beacon 200 includes four status lights that indicate the current status
of the monitor. The status lights are to the left and right of the display (see
Figure 4).
• Pilot Light. The pilot light is on when the Beacon 200 is receiving
incoming power.
• Fail Light. The fail light turns on when the Beacon 200 is experiencing
a fail condition. A fail condition can be caused by a failure within the
Beacon 200 or detector head wired to the Beacon 200. See “Chapter 6:
Maintenance” on page 37 for instructions to respond to a fail condition.
•Alarm 1 Light. The alarm 1 light is on when the Beacon 200 is
experiencing an alarm 1 gas condition.
•Alarm 2 Light. The alarm 2 light is on when the Beacon 200 is
experiencing an alarm 2 gas condition.
Program Buttons
The Beacon 200 includes four program buttons that allow you to enter the
instrument programs, navigate through the programs, update instrument
and channel settings, and save changes to the program settings. When a
program button is pressed, a buzzer located on the display PCB beeps.
The program buttons are near the right edge of the display PCB (see
Figure 4).
Table 2: Beacon 200 Program Button Functions
Button Function
ESCAPE • Moves backward through the program menus
• Cancels changes you make in the program menus
• Enters the Channel Control and Setup program (press with the ENTER button)
UP/YES • Accepts the displayed setting and proceeds to the next setting
• Changes the displayed setting
• Enters the Calibration program (press with the ENTER button)
DOWN/NO • Allows you to update the displayed setting
• Changes the displayed setting
ENTER • Saves changes you make in the programs
• Enters the Channel Control and Setup program (press with ESCAPE button)
• Enters the Calibration program (press with the UP/YES button)

72-2102-07 Beacon 200 Operator’s Manual • 10
Main PCB
The main PCB is mounted inside the housing. The power supply mounting
plate is mounted to the main PCB with four standoffs and the display PCB
is mounted to the power supply mounting plate with four standoffs. The
main PCB includes the terminal strips, relays, fuses, and power switch.
Terminal Strips
The Beacon 200 includes four terminal strips for external wiring
connections. See “Wiring the Beacon 200” on page 17 for detailed wiring
procedures.
•Detector/Transmitter Terminal Strips. Two detector/transmitter
terminal strips are located near the bottom left corner of the main circuit
board (see Figure 1). These two 9-point terminal strips facilitate wiring
connections to the detectors. Only one detector head at a time may be
wired per channel. The top terminal strip is for channel 1 and the bottom
terminal strip is for channel 2. The H2S detectors are factory wired to
these terminal strips.
•Alarm Terminal Strip. The alarm terminal strip is located along the
bottom edge of the main circuit board (see Figure 1). This 21-point
terminal strips facilitates wiring connections to external alarm devices
(horn, strobe, etc.). Terminals are provided for individual channels as
well as common alarm relay contacts. The horn/strobe is factory wired
to this terminal strip.
•Controller Terminal Strip. The 10-point controller terminal strip is near
the lower right edge of the main circuit board (see Figure 1). The
controller terminal strip facilitates various internal and external wiring
connections. Table 3 lists the function of each terminal.

11 • 72-2102-07 Beacon 200 Operator’s Manual
•AC In Terminal Strip. The AC In terminal strip is a 3-point terminal strip
located above the controller terminal strip (see Figure 1). It facilitates
wiring from the AC power source. The 8 foot AC power cord is factory
wired to this terminal strip. Table 4 lists the function of each terminal.
Relays
The Beacon 200 includes four channel relays (two per channel) and three
common relays. Both sets of relays are single-pole, double-throw (SPDT)
and are rated for 10 amps at 250 VAC (resistive).
NOTE: You can select normally energized (NE) or normally de-energized
(NDE) settings for each channel in the Channel Control and Setup
program. This section describes the default setting: normally de-
energized.
The alarm 1 and alarm 2 common relays are factory-set as NDE
and the fail common relay is factory-set as NE. The alarm 1, alarm
2, and fail common relays’ NE/NDE settings are not user-
adjustable.
Table 3: Terminal Assignments for the Controller Terminal Strip
Terminal Connects to:
BAT - - connection from 24 VDC power source1 (or 24 V backup battery)
BAT + + connection from 24 VDC power source1 (or 24 V backup battery)
+ CH1 OUT + connection of 4 - 20 mA output, channel 1
- CH 1 OUT - connection of 4 - 20 mA output, channel 1
+ CH2 OUT + connection of 4 - 20 mA output, channel 2
- CH2 OUT - connection of 4 - 20 mA output, channel 2
RESET (2) Reset switch (factory-wired)
BUZ-/BUZ+ Internal buzzer (factory-wired)
1 If DC power is used as the primary power source, do not make wiring connections to the AC terminal strip.
Table 4: Terminal Assignments for the AC In Terminal Strip
Terminal Connects to:
LINE Hot wire from AC power source.
NEUT Neutral wire from AC power source.
GND Earth ground

72-2102-07 Beacon 200 Operator’s Manual • 12
•Channel relays. The four channel relays are above the alarm terminal
strip (see Figure 1). These relays are dedicated to specific channels
and alarm levels.
For example, the channel 1, alarm 1 relay energizes if channel 1
recognizes an alarm 1 condition. Figure 4 below illustrates the
allocation of the channel relays.
NOTE: The alarm 2 channel relays may be set to operate as individual
channel fail relays. See “Configure Channel Settings Menu” on
page 34 for instructions.
•Common relays. The three common relays, alarm 1, alarm 2, and fail,
are to the left of the controller terminal strip (see Figure 1). These relays
are common for both channels.
For example, the alarm 1 common relay energizes if either channel 1 or
channel 2 recognizes an alarm 1 condition. The common alarm 1 relay
is factory wired to the strobe/horn and is not available for customer use.
Fuses
There are three fuses that are used in the Beacon 200. Two of them are AC
fuses and one of them is a DC fuse.
•AC Fuses. The two fuses located directly to the left of the controller
terminal strip are the AC fuses. 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 200. They are housed in vertical fuse
holders and are held in the holder by a quarter turn cover. They are
labelled as F2 (top fuse) and F3 (bottom fuse) on the PCB silk-screen
and are rated at 3 A, 250 V.
•DC Fuse. The fuse located to the left of the power switch is the DC
fuse. It cuts off incoming DC power in the event of a short circuit or
K1 K2 K3
Common Alarm 1
Common Alarm 2
Common Fail
K5 K6 K7
K4
Channel 2, Alarm 2
Channel 2, Alarm 1
Channel 1, Alarm 2
Channel 1, Alarm 1
Figure 5. Beacon 200 Channel Relay Allocation

13 • 72-2102-07 Beacon 200 Operator’s Manual
other electrical fault which causes a high current draw in the Beacon
200. It is also housed in a vertical fuse holder and is held in the holder
by a quarter turn cover. It is labelled as F1 on the PCB silk-screen and
is rated at 6A, 250 V.
Power Switch
The power switch is located above the relays and to the left of the DC fuses
(see Figure 1). The power switch turns the incoming AC power source on
and off at the Beacon 200. When the switch is up, the power switch is on.
NOTE: The DC power input has no on/off switch and is not affected by the
position of this switch.
Power Supply
The power supply is mounted to the power supply mounting plate which is
located behind the display PCB. The power supply mounting plate is
mounted to the main PCB with four standoffs. The power supply receives
the AC input from the external power source and converts it to a DC
voltage that is usable by the Beacon 200 circuitry.

72-2102-07 Beacon 200 Operator’s Manual • 14
Chapter 3: Installation and Start Up
Overview
This chapter describes procedures to mount the Beacon 200, make wiring
connections to the monitor, and start up the monitor.
WARNING: Perform all installation and start-up procedures in a
“fresh air” environment (known to be free of combustible
gas, toxic gas, and of normal oxygen content). The
Beacon 200 is not in operation as a gas monitoring
system until the start-up procedure is complete.
Mounting the Beacon 200
Perform the following procedure to install the Beacon 200 at the mounting
site.

15 • 72-2102-07 Beacon 200 Operator’s Manual
1. Select the mounting site. When you select the mounting site consider
the following factors:
• Is an AC or DC power source available?
• 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?
Mounting
Feet, 4X
8.0 Max
Ø .31 x .50 slot, 4X
RE SET
Buzzer
.41
3/4 Conduit
Hubs (3X)
3/4 Cable
Bushings (2X)
FAIL
PILOT
Reset
Switch
7.00
6.45
AL AR M 2
AL AR M 1
4.83 8.50
6.00
10.50
10.94
BEACON 200
GAS MONITOR
Figure 6. Beacon 200 Outline and Mounting Dimensions