RKI Instruments Beacon 3200 User manual

RKI Instruments, Inc.
www.rkiinstruments.com
Beacon 3200 Gas Monitor
Operator’s Manual
Part Number: 71-0435
Revision: P2
Released: 11/14/22

2• Beacon 3200 Gas Monitor 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:
• Absorbent cartridges
• Pump diaphragms and valves
•Fuses
•Batteries
• Filter elements
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 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 APARTICULAR PURPOSE. INNO
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 3200 Gas Monitor Operator’s Manual • 3
Table of Contents
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
About the Beacon 3200 Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 2: Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
External Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Internal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Optional Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 3: Installation and Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installing the Horn/Strobe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Chapter 4: Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Normal Operation Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4 - 20 mA Signal Output Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Viewing and Resetting Min/Max Readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Chapter 5: History Graph Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Chapter 6: System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Relay Deactivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Adjusting System Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

4• Beacon 3200 Gas Monitor Operator’s Manual
Chapter 7: Adjusting Channel Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Changing Channel Settings Using the Channel Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Changing the Gas/Range Input Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Changing the Alarm Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Changing the Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Chapter 8: Creating Custom Ranges, Gases, and Units . . . . . . . . . . . . . . . . . . . 82
Chapter 9: Assigning Main Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Chapter 10: Assigning Card Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Chapter 11: Calibration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Calibration Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Detector Head Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Calibration Gas Response Memory Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Performing a Fresh Air Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Performing a Gas Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Viewing Minimum/Maximum Spans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Setting the Timeout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Changing the Install and Calibration Dates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Chapter 12: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Replacing the Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Chapter 12: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Modbus Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Function Code 03: Read Holding Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Function Code 06: Write Single Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Beacon 3200 Gas Monitor Operator’s Manual • 5
Chapter 13: Modbus Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Saving Logged Data to a USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Installing the Sensor Logs Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Importing Data into the Sensor Logs Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Using the Sensor Logs Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Exporting .csv Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Chapter 15: Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Appendix A: Loading New Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Appendix B: Advanced 4 - 20 mA and LEL Current Settings . . . . . . . . . . . . . 135
4-20 mA Inputs Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
4-20 mA Outputs Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
LEL Sensor Current Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

6• Chapter 1: Introduction Beacon 3200 Gas Monitor
Chapter 1: Introduction
Overview
This chapter briefly describes the Beacon 3200 Gas Monitor. This chapter also describes the
Beacon 3200 Gas Monitor Operator’s Manual (this document). Table 2 lists the specifications for
the Beacon 3200.
About the Beacon 3200 Gas Monitor
The Beacon 3200 is a fixed-mounted, continuous-monitoring controller. This multiple channel
gas monitor is capable of detecting gas at up to 32 locations. The display screen shows the gas
readings of 16 active channels at a time. Direct connect (internal amplifier), 4-20 mA (remote
amplifier), and Modbus heads may be used with the Beacon 3200.
The main board has 8 slots that can each accept either a sensor Module or a relay module. Each
sensor module can have up to 4 channels. Each relay module has 8 relays. This means you could
potentially have 32 channels connected to the Beacon 3200 if you didn’t need any relay
connections other than the Main Relays and Fail Relay on the main board.
The Beacon 3200 includes audible and visual alarms for hazardous gas condition warnings. The
alarm circuits include up to three levels of gas alarms. The fail circuit indicates failures occurring
in the detector heads or Beacon 3200.
The Beacon 3200’s Setup Mode allows configuration of various Beacon 3200 channel and
instrument parameters. It also has a Calibration Mode for calibration of the Beacon 3200’s active
channels.
Table 1: Potential Gas/Relay Module Combinations
Sensor
Modules Channels Relay Modules
Card
Relays
832 0 0
728 1 8
624216
520324
416432
312540
28 648
14 756
00 864

Beacon 3200 Gas Monitor Chapter 1: Introduction • 7
About this Manual
The Beacon 3200 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.
Specifications
Table 2 lists specifications for the Beacon 3200.
Caution: Refer to accompanying documentation.
~Vac (AC voltage)
Vdc (DC voltage)
Table 2: Beacon 3200 Specifications
Input Power
100/115/220V ~ ±10%, 50/60Hz, 2.0/2.0/2.0A
or
24 V ± 10%, 8.0A
Construction (housing) Fiberglass/polyester with lexan window (NEMA 4X)
Dimensions 16 in. H x 13.75 in. W x 6.5 in. D
(40.6 cm H x 34.9 cm W x 16.5 cm D)
Weight 10.4 lbs. (without AC line cord)
!

8• Chapter 1: Introduction Beacon 3200 Gas Monitor
Environmental Conditions
• For indoor or outdoor locations (Type 4X)
• 2000m max. altitude
• -40°C to 50°C (-4°F to 122°F) max. ambient
• Maximum humidity of 80% relative
• Mains supply voltage fluctuations not exceeding
± 10% of nominal
• DC supply voltage fluctuations not exceeding +10%
-8% of nominal
• Overvoltage Category II, Pollution Degree 2
Safety/Regulatory QPS Certification Pending
User Controls • Reset switch
• Touch screen
Relays
Relay contacts rated for 6A @ 115/220V~ resistive or
6A @ 30V resistive SPDT, Form C (common,
normally open, and normally closed contacts)
Max Channels and Relays
The Beacon 3200 can support a combination of sen-
sors and card relays. The maximum number of sensors
is 32. See Table 1 on page 6 when determining
desired configurations.
Max Output at RS-485
Power Output Terminal Strip
7A
Max Modbus Cable Length 4,000 ft (recommended impedance of 120 ohms)
Data Logging Interval Once per second
Data Logging Capacity 7.5 years
Standard Accessories USB drive (for transferring logged data)
Table 2: Beacon 3200 Specifications

Beacon 3200 Gas Monitor Chapter 2: Description • 9
Chapter 2: Description
Overview
This chapter describes the Beacon 3200’s external and internal components.
External Description
This section describes the housing and all external components of the Beacon 3200. For the
purposes of this description, the housing door is considered the front of the monitor.
Figure 1: External Component Location
Housing
Reset Switch
3/4 NPT Conduit
Hub, x9
Buzzer

10 • Chapter 2: Description Beacon 3200 Gas Monitor
Housing
The Beacon 3200’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 touch screen is visible through window 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.
There are nine conduit hubs installed on the bottom of the housing for external wiring
connections. Five are along the back of the housing and four are along the front.
NOTE: One or more of the conduit hubs may be replaced by a hole plug, depending on the
configuration ordered.
CAUTION: Only use the 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. There is also a Reset button on the touch screen
display.
The reset switch serves four functions:
• Resets the alarm circuits for “latched” alarms after an alarm 1, alarm 2, or alarm 3
condition passes
NOTE: You can set each channel for latched or self-resetting alarms in Setup Mode’s
Channel Settings (see page 61).
• Silences the buzzer during an alarm 1, alarm 2, or alarm 3 condition if the buzzer silence
parameter in Setup Mode’s System Settings (see page 54) is set to Can Silence
• Resets the strobe during an alarm 1, alarm 2, or alarm 3 condition if the strobe alarm
setting parameter is set to Resettable in Setup Mode’s Channel Settings (see page 64)
• Silences the buzzer during a fail condition if the buzzer silence parameter in Setup Mode’s
System Settings (see page 54) is set to Can Silence
NOTE: Fail alarms cannot be reset with the reset switch. When a fail condition
passes, the Beacon 3200 automatically resets the fail alarm circuit.

Beacon 3200 Gas Monitor Chapter 2: Description • 11
Buzzer
The buzzer is on the bottom left side of the housing. The buzzer sounds an audible alarm to warn
of gas alarms and instrument failures.
Internal Description
This section describes the internal components of the Beacon 3200.
Figure 2: Internal Component Location
OLED Touch Screen
The OLED touch screen is located near the top of the assembly. During normal operation, the
touch screen simultaneously indicates each active channel’s target gas, current gas reading,
measuring unit, status, and location.
The display also shows messages, settings, and other data during operation of the various
selection menus and operating modes.
Table 3: Beacon 3200 Control Button Functions
History Graph Shows the logged data in graph format
List/Bar Graph Shows the current gas reading(s) and status in list format or bar
graph format
Page Up Scrolls up a page if active channels take up more than one screen
RJ45 Port
Strobe Terminal Strip
Power Supply
AC Fuses
Field Ground Stud
115/220 VAC Input Terminal Strip
RS-485 PowerInput Terminal Strip
Main Relay Terminal Strips, 1-3
Fail Relay Terminal Strip
24 VDCPower/Battery Terminal Strip
Power Switch
Sensor/Relay Module
Connector, x8 DC Fuse
Ground and Termination
Jumpers for Modbus
Modbus Terminal Strips
OLED Touch Screen USB Drive Connection
SD Card Connection

12 • Chapter 2: Description Beacon 3200 Gas Monitor
SD Card Connection
A 32 GB SD card is included with the Beacon 3200 but is for Beacon 3200 use only and is not for
customer use.
USB Drive Connection
A USB drive can be installed to transfer logged data to a computer. See page 134 for instructions
on saving logged data to the USB drive and transferring it to a computer.
Main Relay Terminal Strips
The 3 main relay terminal strips (Relay 1, Relay 2, and Relay 3) are located on the top right side
of the main PCB and facilitate the wiring of external alarm devices (horn, strobe, etc.). All the
relays have single-pole double-throw (SPDT) contacts, also known as form C contacts, and are
rated for 6 amps at 115 VAC (resistive). The main relays are field configurable as individual
channel alarm relays or as common alarm relays. The contacts are labeled NO (normally open),
NC (normally closed), and C (common). See “Chapter 6: System Settings” and “Chapter 9:
Assigning Main Relays” for instructions on configuring main relay operation.
Fail Relay Terminal Strip
The fail relay terminal strip (Relay 4) is located on the right side of the main PCB and facilitates
the wiring of an external alarm device (horn, strobe, etc.). The relay has single-pole double-throw
(SPDT) contacts, also known as form C contacts, and are rated for 6 amps at 115 VAC (resistive).
The fail relay activates for a fail condition and cannot be assigned to another alarm condition. Its
operation can be adjusted in Setup Mode’s System Settings (see page 54).
RS-485 Power Output Terminal Strip
The 2-point RS-485 Power Output Terminal Strip is located on the right side of the main PCB and
supplies 24 VDC to power RS-485 detector heads. The Beacon 3200 is capable of providing up to
7.0 amps from the RS-485 Power Output Terminal Strip if no sensor modules are installed.
24 VDC Power/Battery Terminal Strip
The 3-point 24 VDC Power/Battery Terminal Strip is located on the right side of the main PCB
and facilitates the wiring of a 24 VDC power supply or a 24 VDC rechargeable battery. You
cannot connect both a power supply and a rechargeable battery.
Page Down Scrolls down a page if active channels take up more than one screen
Setup Access the Setup Menu
Calibrate Calibrate active channels
Reset/Clear Reset any alarm conditions
Table 3: Beacon 3200 Control Button Functions

Beacon 3200 Gas Monitor Chapter 2: Description • 13
When using a rechargeable battery, ensure that the charging jumper is in the correct position. See
“Battery Charging Jumpers” on page 15 for more information.
115/220 VAC Input Terminal Strip
The 2-point 115/220 VAC Input Terminal Strip is located on the bottom right corner of the main
PCB (see Figure 2) and facilitates wiring connections to the AC power source.
NOTE: The AC power source’s ground wire must be connected to the field ground stud. See
page 23 for instructions.
RS-485 Modbus Terminal Strips
The RS-485 Modbus Terminal Strips (Master and Slave) are located in the lower left corner of the
main PCB. Modbus slave detectors must be wired to the “Master” terminals. If the Beacon 3200
is used as a slave, the master device must be wired to the “Slave” terminals.
Strobe Terminal Strip
The Strobe Terminal Strip is a 2-point terminal strip located in the upper left corner of the main
PCB. When an optional strobe is ordered with a Beacon 3200, the Strobe Terminal Strip is used to
factory-wire the strobe.
CAUTION: The strobe terminals are intended for use with an RKI-supplied optional strobe.
Consult RKI Instruments, Inc. before attempting to use these terminals for some
other alarm device.
RJ45 Port
The RJ45 port on the upper left corner of the main PCB allows for connection of an Ethernet
cable. The Beacon 3200 supports Modbus TCP/IP on port 502.
Table 4: 24 VDC Power/Battery Terminal Strip Terminals
Terminal Connects to:
+ BATT + 24 VDC from rechargeable battery
- - from battery or power supply
+ SUPP + 24 VDC from power supply
Table 5: AC Terminal Strip Terminals
Terminal Connects to:
LINE Hot wire from AC power source.
NEUT Neutral wire from AC power source.

14 • Chapter 2: Description Beacon 3200 Gas Monitor
Sensor/Relay Module Connector
8 sensor/relay module connectors located below the touch screen connect the modules to the main
PCB and hold them in place. Each connector can accept either a sensor module or a relay module.
There are no restrictions on how sensor and relay modules are arranged.
Sensor Module
Each sensor module can accept any combination of up to four direct connect or 4-20 mA detector
heads. Each channel has a plug-in terminal strip for wiring connections. The channels are labeled
“A-D” from bottom to top. The channel number depends on what slot the module is installed in
(1-8 from left to right). Each channel also has 4-20 mA Out terminals to connect a recording
device.
Relay Module
Each relay module has 8 relays installed. There is a plug-in terminal strip for each set of relay
contacts. They are labeled “1-8” from bottom to top. All the relays have single-pole double-throw
(SPDT) contacts, also known as form C contacts, and are rated for 6 amps at 115 VAC (resistive),
220 VAC, or 30 VDC. The contacts are labeled NO (normally open), NC (normally closed), and C
(common). See Chapter 6: System Settings and Chapter 10: Assigning Card Relays for
instructions on configuring card relay operation.
Power Switch
The power switch is on the right side of the main board, between the touch screen and the RS-485
Power Output Terminal Strip (see Figure 2). The power switch turns the incoming AC or DC
power source on and off at the Beacon 3200. When the switch is up, the power is on.
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 AC power from the external power source and converts it to a DC
voltage that is usable by the Beacon 3200 circuitry. A polycarbonate cover prevents accidental
contact with the AC terminals on the power supply.
AC and DC Fuses
Two AC fuses and one DC fuse are used in the Beacon 3200. The fuses are located on the right
side of the main PCB (see Figure 2). The AC fuses are labeled F1 and F2. The DC fuse is labeled
F3 on the PCB silkscreen. The fuses cut off the incoming AC or DC power in the event of a short
circuit or other electrical fault which causes a high current draw in the Beacon 3200. They are
housed in vertical fuse holders, each held in place by a quarter turn cover. The AC fuses are rated
at 6 A, 250 V, 1/4 x 1 1/4 inch, fast acting. The DC fuse is rated at 12A, 250V, 1/4 x 1 1/4 inch,
fast acting.

Beacon 3200 Gas Monitor Chapter 2: Description • 15
Field Ground Stud
Two ground studs are located on the bottom right corner of the main PCB. The left one is
unlabeled and is for factory grounding connections. The stud on the right is labeled with a ground
symbol and is for the field ground connection. A kep nut on the field grounding stud has one lug
available to make wiring connections to earth ground. The kep nut may be removed to install
more lugs if necessary. This stud is typically used to connect the shield drain wire of shielded
cable to earth ground at the Beacon 3200.
Battery Charging Jumpers
The Beacon 3200 has two jumper locations related to battery charging. They are located between
the LCD and the AC fuses. The upper jumper position enables battery charging, and the bottom
jumper position disables battery charging.
Ground and Termination Jumpers for Modbus
2 sets of ground and termination jumpers are installed on the main PCB. 1 set is for when the
Beacon 3200 is used as a Modbus master. The other set is for when the Beacon 3200 is used as a
Modbus slave. Leave all ground and termination jumpers installed unless directed to remove it for
a Modbus installation. See page 28 and page 30 for Modbus wiring instructions.
Optional Accessories
This section describes the optional accessories available for the Beacon 3200. All optional
accessories are wired to the Strobe Terminal Strip on the upper left corner of the main PCB.
Alarm Strobe
The Beacon 3200 can be ordered with an alarm strobe light installed on the top of the housing.
The Beacon 3200 retains its NEMA 4X rating with the strobe installed. Strobe operation can be
programmed in Setup Mode’s Channel Settings (see page 61).
Figure 3: 51-0001-XX Type Alarm Strobe

16 • Chapter 2: Description Beacon 3200 Gas Monitor
Figure 4: 51-0170-XX Type Alarm Strobe
Horn/Strobe
The Beacon 3200 can be ordered with a horn/strobe. This option allows the user to have both a
strobe and horn connected to the Strobe Terminal Strip. If the horn/strobe is not factory-installed,
it also allows the user to mount the horn/strobe away from the Beacon 3200 so that it can be
somewhere more visible/audible. Strobe operation can be programmed in Setup Mode’s Channel
Settings (see page 61).
NOTE: See Chapter 3: Installation and Start Up for complete Beacon 3200 installation
instructions.
Figure 5: 51-0096 Horn/Strobe

Beacon 3200 Gas Monitor Chapter 3: Installation and Start Up • 17
Chapter 3: Installation and Start Up
Overview
This chapter describes procedures to mount the Beacon 3200 Gas Monitor, make wiring
connections to the monitor, and start up the monitor.
WARNING: Perform all installation and start-up procedures in a known fresh air
environment, an environment free of combustible and toxic gases and of normal
oxygen content. The Beacon 3200 is not in operation as a gas monitoring
controller until the start up procedure is complete.
Mounting
WARNING: Only authorized and properly trained personnel should perform any mounting
procedures.
Perform the following procedure to install the Beacon 3200 at the mounting site.
1. Select the mounting site. When selecting the mounting site, consider the following factors:
• Is an AC or DC power source available?
• Is a vertical surface available to mount the Beacon 3200?
• Is there enough room to open the housing door and make wiring connections through the
conduit hubs at the bottom of the housing?
• Is the touch screen visible?
2. Close and latch the housing door.
3. Prepare the selected mounting site as required to mount the Beacon 3200. It should be
mounted at eye level (4 1/2 to 5 feet from the floor). Refer to Figure 7 for the outline and
mounting dimensions.
4. Position the monitor on the vertical mounting surface.
5. Insert 1/4 in. screws through the slots in the mounting feet at each corner of the housing to
secure the housing to the mounting surface.
6. Each of the door clamps has a feature for locking device installation. A locking device that
requires a tool to unlock must be installed in each door clamp.

18 • Chapter 3: Installation and Start Up Beacon 3200 Gas Monitor
Figure 6: Outline and Mounting Dimensions with 51-0001 Series Alarm Strobe Installed
RKI
3200
INSTRUMENTS
BEACON
14.18
9.98
6.63
3.55 1.79
3/4 NPT Conduit Hub, 9x
Ø 0.31" x 0.50" Slot, 4X
Alarm Strobe (Optional)
17.02
16.22
19.10
15.49

Beacon 3200 Gas Monitor Chapter 3: Installation and Start Up • 19
Figure 7: Outline and Mounting Dimensions with 51-0170 Series Alarm Strobe Installed
3200
INSTRUMENTS
BEACON
9.98 Alarm Strobe(Optional)
3/4 NPT Conduit Hub, 9x
14.18
Ø 0.31" x 0.50" Slot, 4X
17.02
22.00
15.49
16.22
RKI
6.63
1.79
3.55

20 • Chapter 3: Installation and Start Up Beacon 3200 Gas Monitor
Figure 8: Outline and Mounting Dimensions with Horn/Strobe Installed
3200
RKI
9.98
Horn/Strobe (Optional)
INSTRUMENTS
BEACON
3/4 NPT Conduit Hub, 9x
14.18
Ø 0.31" x 0.50" Slot, 4X
17.02
15.49
16.22
25.00
3.55
6.63
1.79