RKI Instruments Beacon 200 User Manual

Beacon 200 Gas Monitor

Operator’s Manual

Part Number: 71-0059RK
Revision: D
Released: 1/15/14

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 sh ipm ent from RKI Instr uments, Inc. Any part s fo und
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 clean ed, rep aired, or replace d on a rout ine basis. Exa mples
of such items are as follows:

a) Absorbent cartridges d) Batteries
b) Pump diaphragms and valves e) Filter elements
c) Fuses

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 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, de alers, and r epresenta tives as appo inted by R KI Instrument s,
Inc.

We do not assume indemn ification 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.

ii • Product Warranty

Table of Contents

Chapter 1: Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About the Beacon 200 Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 2: Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

External Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Internal Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 3: Installation and Start Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Mounting the Beacon 200 Gas Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Wiring the Beacon 200 Gas Monitor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Starting Up the Beacon 200 Gas Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Chapter 4: Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Recorder Output Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Alarm Indications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Viewing & Resetting Min/Max Readings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Chapter 5: Channel Control and Setup Program . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Enable/Disable Channel(s) Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Configure Channel Settings Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

View System Information Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Table of Contents • iii

Chapter 6: Input Setup Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Setting Up a New Channel or Changing an Existing Channel . . . . . . . . . . . . . . 41

Chapter 7: Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Calibration Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Replacing the Fuses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

iv • Table of Contents

Chapter 1: Introduction

Overview

This chapter briefly describes the Beacon 200 Gas Monitor. This chapter
also describes the Beacon 200 Gas Monitor Operator’s Manual (this
document). Table 1 at th e en d o f thi s ch apter lists the specifications for the
Beacon 200.

About the Beacon 200 Gas
Monitor

The Beacon 200 is a fixed-mounted, continuous-monitoring gas detection
instrument. This gas monito r is capable of detecting gas at up to two
locations. The display screen simultaneously displays the gas readings of
the active channel or channel s. Both dir ect connect ( internal a mplifier type)
detector heads and 4 - 20 mA transmitter (remote amplifier type) detector
heads may be used with the Beacon 200.

The Beacon 200 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 200.

Three instrument programs allow you to display and change channel and
calibration settings and change channel types. They are the Channel
Control & Setu p Program and the Ca libration P rogram, and the Inp ut Setup
Program.

Overview • 5

About this Manual

The Beacon 200 Gas Monitor Operator’s Manual is organized as follows:

• Chapters 1 through 6 describe components of the Beacon 200 and
procedures to install, start up, operate, and maintain the Beacon 200.

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 dam a ge to equ ipm en t.

WARNING: Describes potential danger that can result in injury or

death.

I Caution: refer to accompanying documentation

!

~ Vac (AC voltage)

Vdc (DC voltage)

6 • About this Manual

Specifications

Table 1 lists specifica t ion s for the Beaco n 200 Gas Mo ni to r.

Description Specification

Table 1: Beacon 200 Specifications

Input Power

Construction (housing) Fiberglass/polyester with lexan window (NEMA 4X)
Dimensions 10.5 in. H x 8.5 in. W x 6.25 in. D

Weight 8 lbs.
Environmental Conditions

Safety/Regulatory

115/220V ~ ±10%, 50/60Hz, 0.5/0.3A
or
24 V +10% -8%, 0.6A VDC

(267 mm H x 216 mm W x 158 mm D)

• For indoor or outdoor locations (Type 4X)

• 2000m max. altitude

• -20°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

1

C US

186718

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

Standard Accessory Operator’s manual (this document)

*1The AC voltage input is factory set. The standard input is 115 V~.

CAUTION: Cleaning is not to be performed.

CAUTION: The operator of this instrument is advised that if the equipment

is used in a man ner not specif ied in thi s manua l, the pr otectio n
provided by th e equipment may be impaired.

Specifications • 7

Chapter 2: Description

Overview

This chapter describes external and internal components of the Bea con
200 Gas Monitor.

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 hou sing is weath er- and corros ion-resist ant. It
is suitable for installation where general purpose equipment is in use. The
housing door is hing ed on the lef t side and is secure d by two latches on the
right side. The displa y screen and st atus lig hts are visible thr ough win dows
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: To avoid electrical inte rference, do not ro ute detect or head and

power wiring through the same conduit hub.

Reset Switch

The reset switch i s on the bottom of th e ho usi ng . I t i s in front of the conduit
hubs. The reset switch serves three functions:

• Resets the alarm circuits for “latch ed” 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.

8 • Overview

• Silences the bu zzer during an alarm 1 or al a rm 2 con dit io n. You canno t
silence failure alarms.

• Displays and resets the minimum and maximum gas concentration
values.

Buzzer

The buzzer is on the botto m of the housi ng. It is on the far r ight. The buzze r
sounds audible alarms to warn you of gas alarms and in strument failures.

Internal Description

This section describes the internal components of the Beacon 200.

Main PCB

Display PCB

(see Figure 2)

Power

Supply

DC Fuse

Alarm Relays

(see Figure 3)

Detector/Transmitter

Terminal Strip, Channel 1

Detector/Tra n s mitter

Terminal Strip, Channel 2

3/4" Conduit

Hub, 3X

Power Switch

AC Fuses

AC In
Terminal Strip

Controller
Terminal Strip

Alarm Terminal
Strip

Reset Switch

Buzzer

Figure 1. Beacon 200 Gas Monitor Component Location

Internal Description • 9

Display Printed Circuit Board (PCB)

The display PCB is mou nted to the p ower supply mo unting plate which is in
turn mounted to t he ma in PCB. The power su pply mo unting p late an d main
PCB are described below. The display PCB includes the displ ay, 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.

ALARM 2 Light

ALARM 1 Light

Display Contrast
Adjust Pot

Display Screen

Display Cable Connector

FAIL Light

J1

PILOT Light

Figure 2. Display Board Component Location

ESCAPE
Button

UP/YES
Button

DOWN/NO
Button

ENTER
Button

Button Repeater
Buzzer

10 • Internal Description

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 2).

• 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 caus ed by a failure within the
Beacon 200 or detector hea d( s) w i r ed to the Be aco n 20 0. See Chapter
5, Maintenanc e, or the troubleshooting section in the applicable
detector head manual 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 buzze r lo cate d on the disp la y PCB beeps.
The program buttons are near the right edge of the display PCB (see
Figure 2).

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)

• Enters the Input Setup Program (press while flipping power switch to ON position)

Internal Description • 11

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 Gas Monitor” for detailed wiring
procedures.

• Detector/Transmitter Terminal Strips. Two detector/transmitter
terminal strip s are locate d near the bo ttom lef t corne r of the mai n circuit
board (see Figure 1). These two 9-point terminal strips facilitate wiring
connections to the detectors or transmitters. Although each terminal
strip can accommodate several different detector head models, only
one detector h ead at a time ma y be wi red per channel . The top term inal
strip is for channel 1 and the bottom terminal strip is for channel 2.

• 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.). Termin als are provided for individual channel as well
as common alarm relay contacts.

• Controller T e rminal Str ip. 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 interna l and external wiring
connections. Table 3 lists the function of each terminal.

Table 3: Terminal Assignments for the Controller Terminal Strip

Terminal Connects to:

BAT -

BAT +

+ 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

- connection from 24 VDC power source

+ connection from 24 VDC power source1 (or 24 V backup battery)

1

(or 24 V backup battery)

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.

12 • Internal Description

• AC In T e rminal St rip. 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. Table 4 lists the function of each
terminal.

T a ble 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 gro und

Relays

The Beacon 200 includes four channel relays (two per channel) and three
common relays. Both sets of relays are single-pole, double-thr ow (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 ea ch channel in th e Channel Co ntrol and Setup
program. This section describes the default setting : normally de­energized.

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 user­adjustable.

• 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 3 below illustrates the
allocation of the channel relays

Internal Description • 13

.

Channel 2, Alarm 2
Channel 2, Alarm 1
Channel 1, Alarm 2

Channel 1, Alarm 1

Figure 3. Beacon 200 Channel Relay Allocation

NOTE: The alarm 2 channel relays may be set to operate as individual

• Common relays. The three common relay s, alarm 1, alarm 2, and fail,
are to the lef t of th e controlle r terminal strip (see Figu re 1). These rela ys
are common for both channels.

Common Alarm 1
Common Alarm 2

Common Fail

K1 K2 K3

K4

K5 K6 K7

channel fail relays. See the Configu re Channel Settings sect ion of
Chapter 5 for instructions.

For example, the al arm 1 common rela y energizes if either channel 1 or
channel 2 recognizes an alarm 1 condition.

Fuses

There are three fu ses that are used in t he Beacon 200 . T w o 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 electric al 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
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.

14 • Internal Description

Power Switch

The power switch is located above the relays and in between the AC and
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 in put has no on/off switch and i s not af fected 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 p ower supply mounting plate is
mounted to the main PCB with fou r st a ndo ffs. 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.

Internal Description • 15

Chapter 3: Installation and Start Up

Overview

This chapter describes procedures to mount the Beacon 200 Gas Monitor,
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 Gas
Monitor

Perform the following procedure to install the Beacon 200 at the mounting
site.

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?

2. Close and latch the housing door.

3. Position t he monitor on a vertical surface at e ye level (4 1/2 to 5 feet

from the floor).

4. The Beacon 200 is shipped with the mounting feet positioned behind

the housing. Loosen the screws that secure the feet to the housing,
rotate the feet to their mounting position (as shown in Figure 4), then
tighten the screws.

5. Insert 1/4 in. or 5/16 in. screws through the slot s in the mounting fe et at

16 • Overview

each corner of the housing to secure the housing to the mounting
surface (see Figure 4).

Ø

.41

8.50

.38 x .50 slot, 4X

6.00

Mounting
Feet, 4X

ALARM 2

FAIL

10.5010.94

PILOT

ALARM 1

BEACON 200

GAS MONITOR

RESET

.80

3/4 " Conduit Hub(3)

Figure 4. Beacon 200 Gas Monitor Outline and Mounting Dimensions

Mounting the Beacon 200 Gas Monitor • 17

AC In Terminal Strip

Wiring

Typical Detector/Transmitter

Terminal Strip Wiring

Only one detector or transmitter can be

wired to Ch1 or Ch2 at a time. See

detector head wiring diagram for

AMP/PREAM P

+S

+S

specific wiring.

CHANNEL 1

OXYGEN

+

RW G B

Green

White

- DC GROUND
FB (4-20 mA)

+ 24 V

CHANNEL 2

OXYGENAMP/PREAMP

+

RW G B

LEL

Oxygen
Detector

3-Wire 4-20 ma
Transmitter

LEL

Controller Terminal

Strip Wiring

24 V

Channel 1 Recorder

1K Max Impedance

Channel 2 Recorder

1K Max Impedance

Reset Switch

(Factory Wired)

Buzzer

(Factory Wired)

Line (Hot)
Neutral
Ground

115V~

(220V~ Optional)

BAT
BAT +
+

4- 20mA Out

4- 20mA Out

CH1
OUT

+

CH2
OUT

RESET
RESET

BUZ
BUZ +

Typical Alarm Relay Terminal

Strip Wiring

CH1-A1 COM-A1 COM-FAILCOM-A2

NO NC C

CH2-A1CH1-A2

CH2-A2

NO NC C

NO NC CNO NC CNO NC C NO NC CNO NC C

ALARM
DEVICE
POWER

Black

Green

White

FB (4-20 mA)
+ 24 V

Red

2-Wire 4-20 ma
Transmitter

LEL Detector

Alarm Devices

Contact Rating of 10 Amps at
115/220 V~ Resistive or
10A @ 30V Resistive for
Each Set of Alarm Relay
Contacts.

Figure 5. Beacon 200 Gas Monitor General External Wiring Diagram

18 • Mounting the Beacon 200 Gas Monitor

Wiring the Beacon 200 Gas
Monitor

This section describes procedures to connect the AC power source, DC
power source, external alarm(s), recorder, and detector head(s). See
Figure 5 for a g eneral wiring diagram of all external wiri ng to the Beacon

200.

WARNING: Make all connections to the Beacon 200 before you plug

in or turn on the AC or DC power source. Before you
make any wiring adjustments, al ways verify that all pow er
sources are not live.

Connecting the AC Power Source

NOTE: If you are using DC power as the pr im a ry pow er source, go to the

next section, “Connecting the DC Power Source.”

The AC in terminal stri p will acce pt 24 - 14 AWG wire. When selecting wire
to connect the AC power source to the Beacon 200, be sure to meet the
local electric al code. Also be sure to use an appropriate circuit breaker in
the AC line close to the Beacon 200 that meets the local electrical code.

Perform the following procedure to connect the AC power source to the
Beacon 200.

WARNING: Verify that the power source is unplugged or turned off at

the power source end before you continue with this
procedure.

1. Turn off or unplug all incoming power to the Beacon 200 at the power
source end.

2. Open the housing door, then place the power switch in the OFF
position.

3. Install an appropriately rate d cable bu shing or con duit to the ri ght-most
conduit hub on the bottom of the Beacon 200 housing.

4. Locate the 3-point AC in terminal strip (see Figure 1). The terminals
are labelled LINE, NEUT, and GND.

5. Guide the AC power cord or wires through the right-most conduit hub
on the bottom of the Beacon 200 housing.

Wiring the Beacon 200 Gas Monit or • 19

CAUTION: Do not route power and det ector head wiring through the same

conduit hub. The p ower wiring may disr upt th e transmission of
the detector head signal to the monitor.

6. Connect the AC wires to the AC power terminal strip as shown in
Figure 6.

AC In Terminal Strip

Line (Hot)

Neutral

115 V~ ± 10%, 50/60 Hz

(220 V~Optional)

Ground

Figure 6. AC Power Wiring

Connecting the DC Power Source

WARNING: Verify that the power source is unplugged or turned off at

the power source end before you continue with this
procedure.

DC power may be used as a primary power source. It may also be used as
a backup power source with a 24 VDC battery if AC power is the primary
power source. If DC power is the primary power source, DO NOT connect
AC power.

1. Turn off or unplug all incoming power to the Beacon 200 at the power
source end.

2. Open the housing door, then place the power switch in the OFF
position.Locate the DC power terminals on the controller terminal strip
(see Figure 1). They are labelled BAT - and BAT +

3. Install an appropriately ra ted cable bush ing or conduit to one of the
unused conduit hubs on the bottom of the Beacon 200 housing.

4. Guide a DC power cord or wires through the selected conduit hub.

CAUTION: Do not route power and det ector head wiring through the same

conduit hub. The p ower wiring may disr upt th e transmission of
the detector head signal to the monitor.

20 • Wiring the Beacon 20 0 Gas Monitor

CAUTION: When a batter y is used as backup power, the Beacon 200

trickle charges the battery. Do not use a non-rechargeable
battery as backup power. Use RKI backup battery 49-8102RK
or an appropriately rate d re cha rg ea bl e lead acid type batte ry.

5. Connect the DC wires to the controller terminal strip as sh own in
Figure 7.

Controller Terminal Strip

24 VDC ± 2.5 VDC

+

BAT
BAT +

Figure 7. DC Power Wiring

NOTE: If a 24 VDC battery is used as a backup power source, as long as

AC power is on t he Beacon 200 will keep a trickl e charge on the
battery to maintain its charge. If AC power is interrupted, the
Beacon 200 will operate from the DC backup battery unt il the
battery voltage drops to 21.5 volts or less, or until AC power is
restored. Battery recharge time will vary depending on how much
the battery was drained.

Connecting External Alarms

Perform the following procedure to connect external alarm devices to the
Beacon 200.

NOTE: The alarm termina l strip includes terminals for channel alarms

and common alarms. Channel alarms are activated by one
particular channel. Common alarms are ac tivated by eith er of the
two channels.The example used in this procedure describes
connecting an external alarm devi ce to one of the channel alarm
terminals: the channel 1, al arm 1 term inal s.

1. Turn off or unplug all incoming power to the Beacon 200 at the power
source end.

2. Open the housing door, then place the power switch in the OFF
position.Locate the alarm terminal strip (see Figure 1).

3. Install an appropriately rated cable bushing or conduit in an unused
conduit hub on the bottom of the Beacon 200 housing.

Wiring the Beacon 200 Gas Monit or • 21

4. Guide the wiring of the external alarm device through the selected
conduit hub on the bottom of the Beacon 200 housing.

CAUTION: Do not route the external alarm wiring and detector head

wiring through the same conduit hub. The external alarm
wiring may disrupt the transmission of the detector signal to
the Beacon 200.

5. Connect the leads from the external alarm device and power to the
alarm terminals as shown in Figure 8.

External Alarm

Device

6. Repeat steps 3 and 4 for additional external alarm devices.

Connecting a Recorder

CH1-A1

NO NC C

+ (H)

-(N)

Figure 8. Typical External Alarm Wiring

Beacon 200 Alarm
Terminal Strip

External Power

Source

Perform the following procedure to connect an analog recording device tot
he Beacon 200. The output at the recorder output terminals is a 4 - 20 mA
signal that is proportional to the detection range of the applicable detector
head.

1. Turn off or unplug all incoming power to the Beacon 200 at the power
source end.

2. Open the housing door, then place the power switch in the OFF
position. Locate the recorder output terminals on the controller terminal
strip (see Figure 1).

3. Install an appropriately rated cable bushing or conduit in an unused
conduit hub on the bottom of the Beacon 200 housing.

22 • Wiring the Beacon 20 0 Gas Monitor

4. Guide the wiring from the recording device through the selected
conduit hub on the Beacon 200.

5. Connect the wires form the recording device to the recorder output
terminals as shown in Figure 9.

Recording Device
#1, 1Kohm Max
Impedance

Recording Device
#2, 1Kohm Max
Impedance

Connecting RKI Detector Heads

Perform the following procedure to connect an RKI detector head to the
Beacon 200.

1. Turn off Power to the Beacon 200 at the power source.

2. Open the Beacon 200 door and place the power switch in the off
position.

3. See the detector head instruction manual for instructions on how to
connect wires to the detector head.

+

+

Figure 9. Recorder Output Wiring

+
+

CH1
OUT

CH2
OUT

4. Install an appropriately rated cable bushing or conduit in an unused
conduit hub on the bottom of the Beacon 200 housing.

5. Route the wir es in conduit or shielded cable from the detector head
through the selected conduit hub into the Beacon 200. See Table 5
below for wire size and distance guidelines.

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 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.

6. Connect the wires from the det ector head to the appropriate det ector/
transmitter terminals. The top detector terminal strip is for channel 1
and the bottom one is for channel 2. See the detector head instruction
manual for controller terminal connections.

Wiring the Beacon 200 Gas Monit or • 23

CAUTION: Do not route power and det ector head wiring through the same

conduit hub. The p ower wiring may disr upt th e transmission of
the detector head’s to the Beacon 200.

.

T able 5: Wire Size Guidelines for RKI Detector Head Wiring

Number of

Detector Head Type

Direct Connect LEL 4 5 00 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 Cl2 2 5 00 ft. 1,000 ft. 2,000 ft.
Direct Connect SO2 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.

Wires to

Controller

Max Distance

to Controller

w/18 Gauge

Wire

Max Distance

to Controller

w/16 Gauge

Wire

Max Distance

to Controller

w/14 Gauge

Wire

Connecting User-Supplied 4 - 20 mA Transmitters

The Beacon 200 ma y be used with a user s upplied 2-wire or 3-wire 4 - 20
mA transmitter which runs on 24 VDC. When this is done, the Beacon 200
is normally setup at RKI Instruments with the following channel
parameters: unit of measure, item name, and full scale. For example, “PSI
AIR” with a full scale of 10 PSI.

Perform the following procedure to connect a 4 - 20 mA transmitter, which
you supply, to the Beacon 200.

1. Turn off power to the Beacon 200 at the power source.

2. Open the Beacon 200 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 an unused
conduit hub on the bottom of the Beacon 200 housing.

5. Route the wires from the transmitter through the selected conduit hub
into the Beacon 200.

24 • Wiring the Beacon 20 0 Gas Monitor

6. Connect the wires from the transmitter to the appropriate detector/
transmitter terminals. The top detector terminal strip is for channel 1
and the bottom one is for channel 2. See the transmitter instruction
manual for contro ller terminal connections. Figure 10 below illustrates
typical transmitter wiring connections.

CAUTION: Do not route power and transmitter wiring through the same

conduit hub. The p ower wiring may disr upt th e transmission of
the transmitter’s signal to the Beacon 200.

3-Wire Connection

AMP/PREAMP

+ S

OXYGEN

+

-

(DC GROUND)

RW G B

FB (4-20 mA)
+ 24 VDC

Figure 10. Generic 4 to 20 mA Transmitter Output Wiring

LEL

3-Wire 4-20 ma
Transmitter

2-Wire Connection

AMP/PREAMP OXYGEN

+ + S

FB (4-20 mA)
+ 24 VDC

RW G B

LEL

2-Wire 4-20 ma
Transmitter

Wiring the Beacon 200 Gas Monit or • 25

Starting Up the Beacon 200 Gas
Monitor

Perform the following procedure to place the Beacon 200 into normal
operation.

1. Complete the mounting and wiring procedures describe d e ar l ie r in this
chapter.

2. Complete all installation procedures described in the detector head or
user supplied 4 - 20 mA transmitter instruction manual.

3. Verify that all wiring connections are correct and secure and that the
Beacon 200’s power switch is in the OFF position.

4. Plug in or turn on the incoming power source (AC or DC) at the power
source end.

5. Place the Beacon 200’s power switch in the ON position. RKI
INSTRUMEN T S BE A CON 200 appears on the display for a few
seconds, then WARMING UP appears for each active channel. The
warm-up period will last for one minute.

NOTE: To prevent unwanted alarms during warm up, the alarm circuits

are not active while the WARMING UP message is displayed.

6. Verify that the PILOT light is on. If the PILOT light is not on, see the
troubleshooting guide in Chapter 5, Maintenance.

7. Perform the start-up procedure for each detector head or user s upplied
4 - 20 mA transmitter as described in the detector head or transmitter
instruction manual

26 • Starting Up the Beacon 200 Gas Monitor

Chapter 4: Operation

Overview

This chapter describes the Beacon 200 Gas Monitor in normal operation.
This chapter also describes the Beacon 200 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 20 0 is not indicating an alarm 1, alarm 2, or fail condition.

• The Beacon 200 is not running the Channel Control & Setup or

Calibration Programs.

During normal operation, the Beacon 200 simultaneously displays the
current gas reading, unit of measure, and target gas for each active
channel.

:

1
2

:

0

20.9

%
%

E

L

L

Oxy

CH4

g

e

n

The PILOT light is on during normal operation indicating that the Beacon
200 is receiving incoming power.

Overview • 27

Recorder Output Operation

The output at the recorder output terminals is a 4 - 20 mA signal for each
active chann el that is proportional to the detection range of the channel. A
channel that is set as CHANNEL NOT USED or CHANNEL DISABLED in
the Channel Control & Setup Program (see Chapter 5) has an output of 0
mA.

There are several special circumstances where the recorder output will
behave as follows:

• When a channel is in WARMUP after the Beacon 200 is turned on, the

recorder output will be at 4 mA for all channel types except oxygen. For
oxygen channels, the output will be 17.4 mA while in WARMUP.

• If the Beacon 200 is being powered by a battery and is in low battery

alarm, the recorder output for eac h channel will be 0 mA.

• When a channel is added or a channel type changed, the display will

indicate NEEDS CALIBRATION for that channel when the Beacon 200
is first turned on and will continue to indicate this until the channel is
calibrated. In this situation, the recorder output will be at 3.2 mA u ntil
the channel is calibrated.

• If a channel goes into a fail condition, the recorder output will be 0 mA.

• If you enter any of the instrument programs, such a s the Calibration

Program, the recorder output will hold at the value it was at when you
entered the program was entered until you return to normal operation.

28 • Recorder Output Operation

Alarm Indications

This section describes the Beacon 200 in alarm 1, alarm 2, and fail
conditions and suggests response to these conditions. Table 6 below lists
the alarm indications for each condition.

NOTE: The Beacon 200 includ es alarm on and alar m off delay setti ngs for

each channel and level of gas alarm. The alarm indications
described in this section operate according to the factory set delay
settings. See the Configure Channel Settings Menu section of
Chapter 5 for all the factory settings.

Table 6: Visual and Audible Alarm Indications

Condition Cause Visual Indication(s)

1

Alarm 1

Alarm 2

Fail

Low Battery

*

*2If DC power is used as primary or backup power source.

1

1

If the Beacon 200 is in both an alarm 1 and an alarm 2 condition, both alarm lights are on and the display

alternates between the gas reading and the ALARM-1 ALARM-2 message.

Increasing (decreasing for O2) gas
reading at or above the alarm 1 setpoint

Increasing gas reading at or above the
alarm 2 setpoint

• Disconnected or misconnected detector
wiring

• Display reading below -10% of full scale or
lower

• Defective components

2

No AC power and DC power source
(primary or backup) less than 21.5 volts.

• ALARM 1 light is on

• Gas reading flashes and
alternates with ALARM-1
message

• ALARM 2 light is on

• Gas reading flashes and
alternates with ALARM-2
message

• FAIL light is on

• FAIL message flashes in place
of gas reading

• FAIL light is on

• SUPPLY VOLTAGE IS TOO

LOW LOW POWER
STANDBY message and actual

voltage of incoming DC power

Pulsing tone

Pulsing tone

Steady tone

None

Audible

Indication

NOTE: You can select normally energized (NE) or normally de-energized

(NDE) channel relay settings in the Channel Control & Setup
menu. The following sections describe the default setting for the
channel relays which is NDE.

Common alarm 1 and alarm 2 relays are factory-set as NDE, and
the common fail relay is factory set as NE. The common relays’
NE/NDE settings are not user-adjustable.

Alarm Indications • 2 9

Alarm 1 Condition

This section describes the audible and visual indications for an alarm 1
condition and sugge s t s re spo nse to an al ar m 1 condit ion .

Alarm 1 condition indications

When the gas reading of an active channel reaches the alarm 1 setpoint,
the Beacon 200 senses an alarm 1 con dition. The Beacon 200 ale rts you to
an alarm 1 condition as follows:

• The ALARM 1 light turns on.

• The gas reading in alarm 1 condition flashes and alternates with the
ALARM-1 message.

• The buzzer sounds a Pulsing tone.

• The common al arm 1 relay energiz es .

• The applicable alarm 1 channel relay energizes.

Responding to an alarm 1 condition

This section suggests response to an alarm 1 condition.

1. Follow your established procedu r e for a low level combustible or toxic

gas condition or a decreasing oxygen content condition.

2. Oxygen alarms are self-resetting and will automatically clear when the

oxygen rises above the alarm 1 setpoint.

3. Alarms for all other gas types are latching. After the gas reading falls

below the alarm 1 setpoint, press the reset switch to reset the alarm 1
circuit. Resetting the alarm 1 circuit silen c es the bu zzer, turns off the
ALARM 1 light, resets the channel display, and de-energizes the
common and channel alarm 1 relays.

NOTE: To silence the buzzer while in an alarm 1 condition, press the

reset switch.
You cannot de-energize the alarm 1 relays until the gas reading

falls below (above for oxygen) the alarm 1 setpoint .

30 • Alarm Indications

Alarm 2 Condition

This section describes the audible and visual indications for an alarm 2
condition and sugge s t s re spo nse to an al ar m 2 condit ion .

Alarm 2 condition indications

When the gas reading of an active channel reaches the alarm 2 setpoint,
the Beacon 200 senses an alarm 2 con dition. The Beacon 200 ale rts you to
an alarm 2 condition as follows:

• The ALARM 2 light turns on.

• The gas reading in alarm 2 condition continues to flash and alternates
with the ALARM-2 messages.

• The buzzer sounds a Pulsing tone.

• The common al arm 2 relay energiz es .

• The applicable alarm 2 channel relay energizes.

Responding to an alarm 2 condition

This section suggests response to an alarm 2 condition.

1. Follow your establish ed proced ure fo r a high l evel combust ibl e or toxic

gas condition or an increasing oxygen content condition.

2. Oxygen alarms are self-resetting and will automatically clear when the

oxygen rises above the alarm 2 setpoint.

3. Alarms for all other gas types are latching. After the gas reading falls

below the alarm 2 setpoint, press the reset switch to reset the alarm
circuit. Resetting the alarm circuit turns off the ALARM 2 light, and de­energizes the common and channel alarm 2 relays .

NOTE: To silence the buzzer while in an alarm 2 condition, press the

reset switch.
You cannot de-energize the alarm 2 relays until the gas reading

falls below the alarm 2 setpoint.

Fail Condition

This section describes the audible and visu al indication s for a fail conditio n
and suggests response to a fail condition.

Fail condition indications

The Beacon 200 senses a fail condition for any of the following:

• The detector head wiring to the Beacon 200 is disconnected or

Alarm Indications • 3 1

incorrectly co nnected.

• The detector head’s detector is disconnected or incorrectly connected.

• The display reading is -10% of full scale or lower.

• The Beacon 200 or detector head is malfunctioning.

When the Beacon 200 senses a fail condition, it alerts you as follows:

• The FAIL light turns on.

• The gas reading for the failing channel is replaced by the FAIL
message.

• The buzzer sounds a steady tone.

• The common fail r elay de-energizes.

NOTE: If you elected to use the channel’s alarm 2 relay as an individual

fail relay in the Channel Control & Setup menu, the rel ay de­energizes in a fail condition. See the Chan nel Control & Setup
section of Chapter 5 for a description of this setting.

Responding to a fail condition

This section suggests response to a fail condition.

1. Verify that the detector head wiring to the Beacon 200 is correctly and

securely connected.

2. Verify that the detector head’s detector is correctly and securely

connected.

3. See the troubleshooting guide in the detector head instruction manual.

Low Battery Condition

This section describes the audible and visual indications for a low battery
condition and suggests respon se to a low battery condition. T his condition
only applies when DC power is used as a primary or backup power source.

NOTE: When a 24 VDC battery is used as a backup power source, the

Beacon 200 ke eps t he battery charged by providing a trickle
charge from the AC power source. If AC power is interrupted, the
Beacon 200 will operate from the DC backup battery unt il the
battery voltage drops to 21.5 volts or less, or until AC power is
restored.

32 • Alarm Indications

Low battery condition indications

The Beacon 200 senses a low battery condition when:

• AC power is disconnected, misconnected, or interrupted

AND

• the DC power source is 21.5 volts or less

When the Beacon 200 senses a low battery condition, it alerts you as
follows:

• The FAIL light turns on.

• The top display screen displays the SUPPLY VOLTAGE IS TOO LOW,
LOW POWER STANDBY message and the actual voltage of incoming
DC power.

Responding to a low battery condition

This section suggests response to a low battery condition.

• If DC power is the primary power source:

1. For a temporary DC power source, disconnect primary DC power at

the Beacon 200, then connect a 24 VDC backup battery.

2. Determine and correct the cause of primary DC power loss.
When the DC power source rises above 22.0 volts, the Beacon 200

begins the warm up process.

• If DC power is the backup power source:

1. Replace or recharge the 24 VDC backup battery to resume backup

power capability.

2. Determine and correct the cause of primary AC power loss.
When backup DC or primary AC power is restored, the Beacon 200

begins the warm up process. When AC power is restored, the Beacon
200 charges the backup battery 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 200 reverts to a
trickle charge to maintain the battery charge.

Alarm Indications • 3 3

Viewing & Resetting Min/Max
Readings

The Reset switch may be used to view and reset the minimum and
maximum gas readings for the active channel(s).

1. While the Beacon 200 is in norm al operat ion, press an d hold th e Reset

switch button for 3 seconds.

2. The display will indicate MIN / MAX Display Pres s RESET when

done viewing . . . for 5 seconds before displaying the minimum and
maximum readings for the active chann el(s). The minimum reading is
on the left and th e m axim um i s on the r ight si d e of the di splay for each
channel.

3. Press and release the Reset switch button to exit the min/max screen.

The display will indicate To RESET Min/MAX values Press and HOLD
RESET Button for 10 seconds and then return to normal operation.

• 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.

• To reset the minimum and maximum readings, before the unit

returns to normal operation press and hold the Reset switch button
until the display indicates Min/Max Values Have Been Reset.
Release the Reset switch button.The unit will then return to normal
operation.

34 • Viewing & Resetting Min/Max Read ings

Chapter 5: Channel Control and Setup Program

Overview

The Channel Control & Setup Program allows viewing of and changes to
instrument setup parameters. It is accessed using the program buttons.
The Channel Control & Setup Program i ncludes thr ee m enus as de scribed
in Table 7.

Table 7: Channel Control & Setup Program Menus

Menu Function

Enable/Disable Channel(s) Configures channels as enabled, disabled, or not used
Configure Channel Settings Configures alarm settings, noise filter setting, and zero

suppression setting for each channel

View System Information Displays the firmware version number and the instrument

operating voltage

To enter the Channel Control & Setup Program, simultaneously press and
hold the ESCAPE and ENTER buttons f or approximately 5 seconds.

The Channel Control & Setup Program menu includes a 5-minute time-out
feature. If you do not press a button for 5 minutes, the Beacon 200
automatically returns to normal operation.

NOTE: If the Beacon 200 returns to normal operation because of a

program time-out, the active channels enter a warm-up period just
as they do when the unit is first turned on.

If you are installing a new system, the channels have been setup
at the factory for the ordered detector he ads. Use the Channel
Control & Setup Program only if you want to disable or enable a
channel, delete a channel, or change chan ne l setti n gs. If a
channel is being added or a channel is being changed from one
type to another, contact RKI Instruments, Inc. for additional
documentation required to define the channel type.

Overview • 35

Enable/Disable Channel(s) Menu

1. From normal operation, simultaneously press and hold the ESCAPE

and ENTER button s for ap pr oxim ately 5 seconds to enter t he C h ann el
Control & Setup Program. Release the buttons when the Control &
Setup Program Proceed? [YES] or [NO] message appears on the
display screen.

2. Press the UP/YES button to continue.

3. Press the UP/YES or DOWN/NO button until the 1) Enable/Disab le

Channel(s) message appears on the display screen, then press the
ENTER button.

4. Use the UP/YES and DOWN/NO buttons to select the channel you

want to enable or disable, then press the ENTER button.

5. Press the DOWN/NO button. The CHANNEL USAGE setting displays

on the display screen.

6. Use the UP/YES and DOWN/NO buttons to display the setting you

want, then press the ENTER button to select the setting. The table
below describes the three available settings.

Table 8: Beacon 200 Channel Usage Settings

Setting Description

CHANNEL ENABLED The Beacon 200 displays gas readings and initiates gas and channel failure alarms

when appropriate.
Use this setting for normal operation when the channel has a detector head wired to
it.

CHANNEL DISABLED The Beacon 200 displays DISABLED for the channel and the channel’s alarm circuit

is not active.
Use this setting when the channel has a detector head wired to it, but gas readings
and alarms are not required for the channel (fo r example if the detector hea d requires
maintenance or is malfunctioning).

CHANNEL NOT USED The Beacon 200 leaves the channel blank on the display screen.

Use this setting when the channel does not have a detector head wired to it.

7. Press the ESCAPE button, then press the DOWN/NO button to return

to normal operation.

36 • Enable/Disable Channel(s) Menu

Configure Channel Settings
Menu

This section describes how to view and change channel parameters for the
installed gas channels.

1. Simultaneously press and hold the ESCAPE and ENTER buttons for

approximately 5 seconds to enter the Channel Control & Setup
Program. Release the buttons when the Control & Setup Program
Proceed? [YES] or [NO] message appears on the display screen.

2. Press the UP/YES button to continue.

3. Press the UP/YES or DOWN/NO button until the 2) Configure

Channel Setting(s) message appears on the display screen, then
press the ENTER button.

4. Use the UP/YES and DOWN/NO buttons to select the channel for

which you want to set parameters, then press the ENTER button.

5. Press the UP/YES button until the parameter you want to set appears

on the display screen. The screen will display the current setting and
ask if it is OK.

Table 9 lists the p aramete rs you can set for a channel . Table 9 also list s
the factory set value for each parameter.

NOTE: Use the ESCAPE button to go back to a previously displayed

parameter.

6. If the setting is not OK and you want to change th e it, press the DOWN/

NO button. The parameter is now adjustable.

7. Use the UP/YES or DOWN/NO button to update the parameter, then

press the ENTER button to continue.

8. Repeat steps 5 through 7 to set any other channel paramet ers.

9. Press the UP/YES button until the following message appears on the

display screen.

Con f iguration for

CHANNEL 1

has nbee

eSav Set t i ngs

completed

[

Y

?

/N

]

Configure Channel Settings Menu • 37

10.Press the UP/YES button to save the configuration. The screen will

then return to the Channel Control & Setup menu.

11. Press ESCAPE to return to the screen which asks Control & Setup

Program Proceed? [YES] or [NO].

12.{Press the DOWN/NO button to return to normal operation.

Table 9: Channel Setting Parameters

Parameter

(Factory-Set Value)

ALARM-1 Level
See the Beacon 200 Detector Head
Specification Sheet for the detector
head installed on this channel

ALARM-1 ON DELAY
(1 sec)

ALARM-1 OFF DELAY
(0 sec)

ALARM-1 (activation)
(DECREASING for oxygen channels,
INCREASING for all other channel
types)

ALARM-1 Relay (action)
(NORMALLY DE-ENERGIZED)

ALARM-1 Relay (reset)
(SELF RESETTING for oxygen,
LATCHING for all other channel types)

Description

The gas read ing at which the Beacon 200 initiates an alarm 1 condition
for this channel.

The amount of time the Beacon 200 delays activation of the alarm 1
circuit once an alarm 1 condition is initiated.

The amount of time the Beacon 200 delays turning off the alarm 1 circuit
once an alarm 1 condition passes.

Indicates if the alarm 1 circuit is activated by gas readings INCREASING
or DECREASING to the ALARM-1 Level.

If set as NORMALL Y DE-ENERGIZED, t he cha nnel’ s a larm 1 re lay is de­energized in normal operat ion and energ ize s wh en an alarm 1 cond iti on
is initiated.
If set as NORMALLY ENERGIZED, the channel’s alarm 1 relay is
energized in normal operation and de-energizes when an alarm 1
condition is initiated.

If set as LATCHING, you must press the RESET button to reset the
alarm 1 circuit after the alarm 1 condition passes.
If set as SELF RESETTING, the Beacon 200 automatically resets the
alarm 1 circuit after the alarm 1 condition passes.

ALARM-2 Relay (used for)
(ALARM-2 Condition)

ALARM-2 Level
See the Beacon 200 Detector Head
Specification Sheet for the detector
head installed on this channel

ALARM-2 ON DELAY
(2 min for oxygen, 1 sec for all other
channel types)

ALARM-2 OFF DELAY
(0 sec)

If set as ALARM-2 Condition, the channel’s alarm 2 relay activates
when an alarm 2 condition is initiated for the channel.
If set as FAIL Condition, the channel’s alarm 2 relay activates when a
fail condition is initiated for the channel.

The gas read ing at which the Beacon 200 initiates an alarm 2 condition
for this channel.

The amount of time the Beacon 200 delays activation of the alarm 2
circuit once an alarm 2 condition is initiated.

The amount of time the Beacon 200 delays turning off the alarm 2 circuit
once an alarm 2 condition passes.

38 • Configure Channel Settings Menu

Table 9: Channel Setting Parameters (Continued)

Parameter

(Factory-Set Value)

ALARM-2 (activation)
(INCREASING)

ALARM-2 Relay (action)
(NORMALLY DE-ENERGIZED)

ALARM-2 Relay (reset)
(SELF RESETTING for oxygen,
LATCHING for all other channel types)

NOISE FILTER
(3)

ZERO SUPPRESSION
(0.0% of the detection range in t erms
of the detection units for carbon
dioxide channel types, 0.5% oxygen
for oxygen channels, 2.0% of the
detection range in terms of the
detection units for all other channel
types)

Description

Indicates if the alarm 2 circuit is activated by gas readings INCREASING
or DECREASING to the ALARM-2 Level.

If set as NORMALL Y DE-ENERGIZED, t he cha nnel’ s a larm 2 re lay is de­energized in normal operat ion and energ ize s wh en an alarm 2 cond iti on
is initiated.
If set as NORMALLY ENERGIZED, the channel’s alarm 2 relay is
energized in normal operation and de-energizes when an alarm 2
condition is initiated.

If set as LATCHING, you must press the RESET button to reset the
alarm 2 circuit after the alarm 2 condition passes.
If set as SELF RESETTING, the Beacon 200 automatically resets the
alarm 2 circuit after the alarm 2 condition passes.

The noise filter feature helps “smooth out” jumpy or noisy signals from
the detector head. You can set the noise filter from 1 to 8.
A setting of 8 produces the greatest amount of smoothing but also
responds slowest to changes in the response reading.
A setting of 1 responds fastest to changes in the response reading but
produces the least amount of smoothing.

The zero suppression feature helps prevent “jumpy” readings near the
fresh air reading.
For example, if the zero suppression setting on a %LEL channel is 2.0%
and the full scale is 100% LEL, the Beacon 200 will display a reading of
0% LEL for gas readings from -2% LEL to 2% LEL.

View System Information Menu

The View System Information Menu consists of only one display screen
which indicates the version number of the firmware that is running the
instrument and the system voltage. The system voltage is the voltage that
is directly running the instrument’s circuitry. When the unit is running from
AC power, this voltage is normally 24.0 volts ± 0.2 volts. When the un it is
running from DC power, this voltage reading can be used as an indication
of the DC voltage powering the unit.

Configure Channel Settings Menu • 39

Chapter 6: Input Setup Program

Overview

This chapter describes how to use the Input Setup Program to add a
channel or change the cha nn el ty pe of an in stalled channel on the Bea c on

200. The Input Setup Program allows you to define the type of detector

head, the units and gas type, and the full scale for that channel.
To enter the Input Setup Program, the Beacon 200 must first be off. While

the Beacon 200 is off, press and hold the ENTER button, then turn on the
Beacon 200 with the ON/OFF switch.

The Input Setup Program m enu include s a 5-minute time-out feature. If you
do not press a button for 5 minutes, the Beacon 200 automatically begins
normal operation.

NOTE: If the Beacon 200 enters normal operation because of a program

time-out, the active channels enter a warm-up period just as they
do when the unit is first turned on.

40 • Overview

Setting Up a New Channel or
Changing an Existing Channel

1. While the Beacon 200 is off, press and hold the ENTER button, then

turn on the Beacon 200 with the ON/OFF switch.

2. The Beacon 200 will beep repeatedly while you are holding down the

ENTER button and then the screen will show INPUT SETUP
PROGRAM on the top line.

3. Press the ENTER button to continue.

If you press the ESCAPE button, the unit will start-up and enter its
warm-up period.

4. Press the UP/YES or DOWN/NO button until the channel you wish to

add or change appears on the display screen, then press the ENTER
button. The detector head type screen appears.

5. The display screen indicates what type of detector head is currently

selected for that channel and asks if it is OK. Table 1 below briefly
describes each type.

Table 10: Beacon 200 Detector Head Types

Detector Head Type Description

4 - 20 mA Amp [+S(-)] A 4 - 20 mA detector head is connected to the Beacon 200

with 2 or 3 wires, depending on the detector head model,
using the AMP/PREAMP +, S, and - terminals on a detector
head terminal strip. All calibration adjustments are made at
the detector head.

PreAmp [+S] A PreAmp detector head is connected to the Beacon 200 with

2 wires using the AMP/PREAMP + and S terminals on a
detector head terminal strip. All calibration adjustments are
made at the Beacon 200.

O2 Direct [+-] An O2 Direct detector head is an oxygen detector head in

which the oxygen detector is wired to the Beacon 200 with 2
wires using the OXYGEN + and - terminals on a detector
head terminal strip. All calibration adjustments are made at
the Beacon 200.

LEL Direct [RWGB] An LEL Direct detector head is a combustible gas detector

head in which the combustible gas detector is wired to the
Beacon 200 with 4 wires using the LEL R, W, G, and B
terminals on a detector head terminal strip. All calibration
adjustments are made at the Beacon 200.

If the detector head type is not correct, press the DOWN/NO button
and continue with step 6.

Setting Up a New Channel or Changing an Existing Channel • 41

If the detector head type is correct, press the UP/YES button to
proceed to t he units and gas type screen and skip to step 7.

NOTE: See the detector head operator’s manual and the Beacon 200

Detector Head Specification sheet for the detector head to
determine the detector head type.

6. Use the UP/YES and DOWN/NO buttons to scroll through the list of

detector head types until the correct one is displayed. Press the
ENTER button to accept the type.The units and gas type screen
appears.

7. If the units and gas type are not correct, press the DOWN/NO button

and continue with step 8.
If the units and gas type are correct, press the UP/YES button to

proceed to the full scale screen and skip to step 9.

8. Use the UP/YES and DOWN/NO buttons to scroll through a list of units

and gas type choices.

NOTE: See the Beacon 200 Detector Head Specification Sheet for the

detector head to determine t he correct units and gas type.

When the desired units and gas type appears, press the ENTER
button to accept the choice. The full scale screen appears.

One of the choices is User Will Specify. If the desired units and gas
type setting is not in the list, this setting will allow you to enter a 10
character units and gas type setting. With this choice displayed, press
the ENTER button and a screen will appear which allows you to input
the characters. Use the UP/YES and DOWN/NO buttons to select a
character and then press ENTER to accept it and continue with the
next character. When all characters have been entered, the full scale
screen will appear.

9. If the full scale setting is not correct, press the DOWN/NO button and

continue with step 10.
If the full scale setting is correct, press the UP/YES button to proceed

to the save screen and skip to step 11.

10.Use the UP/YES and DOWN/NO buttons to scroll through a list of full

scale settings.

NOTE: See the Beacon 200 Detector Head Specification Sheet for the

detector head to determine the correct full scale setting.

42 • Setting Up a New Channel or Changing an Existing Channel

When the desired full scale setting appears, press the ENTER button
to accept the setting. The save screen appears.

One of the choices is User W ill S pecify. If the desired full scale setting
is not in the list, this setting will allow you to enter a full scale setting.
With this choice displayed, press the ENTER button and a screen will
appear which prompts you to choose how many decimal places you
want in the full scale setting. You can select up to 3 decimal places,
then press the EN TER button to proceed t o the select f ull scale scr een.
Use the UP/YES and DOWN/NO buttons to select a full scale setting,
then press ENTER to accept it. The save screen appears.

11. To save the settings, press the UP/YES button and the settings will be

saved. The display will return to the first screen of the Input Setup
Program.

If you do not want to save the settings, press the DOWN/NO button.
The display will return to the first screen of the Input Setup Program.

12. Press the ENTER button to perform additional setup or the ESCAPE

button to exit the Input Setup Program and begin the Beacon 200’s
warm-up sequence.

NOTE: Once the Beacon 200 channels are configured correctly, see the

detector head operator’s manual(s) for a complete description of
detector head installation procedures.

Setting Up a New Channel or Changing an Existing Channel • 43

Chapter 7: Maintenance

Overview

This chapter describes use of the Calibration Program and corrective
maintenance procedures for the Beacon 200. It includes a troubleshooting
guide for problem s you may encoun ter with the B eacon 200 . Procedures to
replace compon ents of the Beacon 200 are at the end of this chapter.

Calibration Program

The Calibration Pr ogram is used to calibrate the Beacon 200’s active
channel(s). Since the Beacon 200 can support both di rect connect (int ernal
amp) and 4-20 mA transmitter (remote amp) detector heads, w hen
calibrating the active channel(s) there are three possible detector head
combinations:

• Direct connect detector head(s) only.
If one or two direct connect detector heads are active, then all

calibration adjustments are made at the Beacon 200 after calibration
gas is applied at the detector (s).

• 4-20 mA transmitter detector head(s) only.
If one or two 4-20 mA transmitter detector heads are active, then all

calibration adjustments are made at the detector head(s) after
calibration gas is applied to the detector(s).

• A direct connect and a 4-20 mA transmitter detector head.
If one direct connect and one 4-20 mA transmitter detector head are

installed, then calibration adjustments must be made at the Beacon 200
for the direct connect detector head after applying gas to its detector,
and at the detector head for the 4-20 mA transmitter detector head.

Calibration Program Flow

Figures 11, 12, and 13 below illustrate the general flow of the Calibration
Program for the three possible detector head combinations. See the next
section, Entering the Calibration Program, for instructions to enter the
Calibration Program. In general, the program screens provide instructions
to guide you through the program. At any point in the calibration program,
the ESCAPE key may be used to either return to the previous screen or

44 • Overview

abort a process.

Normal

Operation

ESCAPE

Calibration

Program Enter

ENTER/ESCAPE

ENTER

Calibration

Timeout

Selection

Calibrate

Channel 1 Y/N?

Calibrate

Channel 2 Y/N?

(If Install e d )

Channel 2 Y/N?

(If Install e d )

Press Enter to

Adjust Span

Normal

Operation

Air Adjust
Channel 2

(If Install e d )

Select Cal. Gas

Concentration

for Channel 2

Span

Air Adjust
Channel 1

Select Cal. Gas

Concentration

for Channel 1

Figure 11. Direct Connect Detector Head(s) Only

ESCAPE

Calibration

Program Enter

ENTER/ESCAPE

ENTER

Calibration

Timeout

Selection

Span

Channel 1 Y/N?

Apply Gas to

Ch. 1 & Ch. 2

Detectors

Calibrate

Channel 1 Y/N?

Calibrate

Channel 2 Y/N?

(If Installed)

Calibrate at

Detector

Head(s)

Press Enter
When Done

Figure 12. 4 - 20 mA Transmitter Detector Head(s) Only

Calibration Program • 45

Normal

Operation

Calibrate

Channel 1 at

Detector Head

Calibrate

Channel 1 Y/N?

Transmitter

YesNoYes

Direct Connect

Air Adjust

Channel 1

ESCAPE

Calibration

Program Enter

ENTER/ESCAPE

ENTER

Calibration

Timeout

Selection

Calibrate

Channel 2 at

Detector Head

Channel 2 Y/N?

TransmitterTransmitter

Calibrate

Direct Connect

No

Yes

Air Adjust

Channel 2

Press Enter
When Done

Select Cal. G as

Concentration

for Channel 1

Apply Gas to

Ch. 1 Detector

Press Enter to

Adjust Span

Press Enter

When Done

Select Cal. Gas

Concentration
for Channel 2

Apply Gas to

Ch. 2 Detector

Press Enter to

Adjust Span

Figure 13. 4 - 20 mA & Direct Connect Detector Head(s)

46 • Calibration Program

Entering the Calibration Program

1. Assemble the calibration kit(s). See the instruction manual for each

detector head for procedures specific to that detector head.

2. Simultaneously press and hold the ENTER and UP/YES buttons for

approximately 5 secon ds to enter the Calibratio n Program. Release the
buttons when the CALIBRATIO N PROGRAM... message displ ays and
asks if you want to continue or return to normal operation.

NOTE: While in the Calibration Program, the alarm status of the Beacon

200 will be locked in the state i t was when the Calibration Program
was entered.

3. Press the ENTER button to continue and dis play the Calibr ation Time-

out setting.

The Beacon 200 will rem ain in the Calibration Program for the amo unt
of time indicated by the Calibration Time-out setting or until you exit the
program. If necessary, adjust the setting using the UP/YES and DOWN/
NO buttons. Make sure you have allotted enough time to perform the
calibration pr ocedure. Consider the type of detector head(s) installe d
and the distance from the Beacon 200 when determining the time
required.

NOTE: If you do not accept a Time-out setting and stay at this screen or

press ESCAPE and do not press control buttons again, then the
Beacon 200 will exit the Calibration Pr ogram and begin its warm­up period 5 minutes after the last button was pushed. This warm­up period functi ons as if the unit were just powered up.

4. Press the ENTER button to accep t th e Time-out setting, start the Time-

out period and continue in the Calibration Program.

NOTE: The following describes calibration with a typical channel

allocation which may be different from yours. This example
allocation has two active channels with both types of detector
heads installed. Channel 1 is a 4-20 mA detector head and
channel 2 is a direct connect detector head. See the detector
head instruction manuals for calibration information and
procedures specific to the detector heads.

Calibration Program • 47

Calibrating a 4-20 mA detector head

1. The display asks if you want to calibrate channel 1 (in this example a 4-

20 mA detector head). Press the UP/YES button to continue with
calibrating channel 1.

If you press the DOWN/NO button, the display will skip channel 1 and
ask if you want to calibrate channel 2.

2. If you pressed the UP/YES button, since channel 1 is a 4 - 20 mA

detector head in this example, the unit will display the following
message for a few second s be fore continuing: Reminder. Calibration
Must Be Done at the Detector Head. Then the display will alternate
between the current gas reading for channel 1 and the message
CALIBRATE AT HEAD above the time remaining in the calibration
Time-out.

3. Verify that the detector head is in a fresh-air environment. (If

necessary, use a zero-emission air cylinder, also known as zero air, to
introduce a fresh-air sample whe n adjusting the zero reading below.)

4. Adjust the detector head’s zero (fresh air reading for oxygen) reading.

See the detector head’s instruction manual for instructions on how to
adjust the zero reading (fresh air reading for oxygen).

5. 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 i nstruction man ual for instr uctions on how to a djust the
span (zero reading for oxygen) reading.

6. Press the ENTER button to indicate that you are done with calibrating

channel 1 and are ready to continue.

Calibrating a Direct Connect Detector Head

1. The display asks if you want to calibrate channel 2 (in this example a

direct connect detector head). Press the UP /YES button to continue
with calibrating channel 2.

If you press the DOWN/NO button, the display will skip channel 2 and
return to the first calibration program screen which asks if you want to
continue or escape from the program.

2. If you pressed the UP/YES button, since channel 2 is a direct connect

detector head in this example, the unit will display the following
message for a few seconds before continuing: Expose Dectector(s)
To Fresh Air. . . When Done Press ENTER. Then the display will
alternate between the gas reading and the message FRESH AIR
ENTER to ACCEPT ESCAPE to ABORT above the time remaining
in the calibration Time-out.

48 • Calibration Program

3. If the detector is in a fresh air environment, press the ENTER button.

The unit will adjust the zero reading an d display the message Fresh
Air Adjust Passed for: Channel 2 before contin uing.

If you suspect the detector area is not a fres h air environment, apply
zero air to the detector before pressing the ENTER button. See the
detector head instru ction ma nual for inst ructions to apply zero a ir to th e
detector. The Beacon 200 will freeze t he display reading for channel 2
at the lowest level reached while applying zero air (highest level for an
oxygen channel). A fter applyi ng zero air for the required am ount of time ,
usually two minutes, remove the zero air source from the detector.
Press the ENTER button at the Beacon 200. The unit will adjust the
zero reading and display the message Fresh Air Adjust Passed for:
Channel 2 before continuing.

4. The display asks if you want to perform a span (zero for an oxygen

channel) operation on channel 2 by applying gas. Press the UP/YES
button to continue with adjusting the span on channel 2.

If you press the DOWN/NO button, the unit will return to the first
calibration program screen which asks if you want to con tinue or
escape from th e Calibration Program.

5. If you pressed the UP/YES button, the display will prompt you for the

span gas (zero gas for an oxygen channel) concentration that will be
used. Adjust the displayed concentration up or down as needed using
the UP/YES and DOWN/NO buttons so that it matches the
concentration in the calibration cylinder.

6. Press the ENTER button to accept the calibration gas concentration

and continue. The unit will display the message Expose Dectector(s)
To Gas. . . When Done Press ENTER for a few seconds. It will then
alternate between the gas reading for channel 2 and the message
APPLYING GAS ENTER to ACCEPT ESCAPE to ABORT above
the time remaining in the calibration time-out.

7. Apply the calibration gas to the detector. See the detector head

instruction manual for instructions on how to apply gas to the detector.

When the calibration gas is applied, the Beacon 200 will freeze the
display gas reading at the highest level reached whil e the gas was
applied (lowest for an oxygen channel).

8. After applying calibration gas for the required amount of time, usually

two minutes, remove the gas from the detector.

Calibration Program • 49

9. Press the ENTER button at the Beacon 200 to proceed with the

calibration adjustment.

If the Beacon 200 is able to succes sfully make the calibration
adjustment, it will display the message Cal Passed for: Channel 2. It
will then return to the first calibration program screen which asks if you
want to continue or escape from the program. Press ESCAPE to return
to normal operation.

If the Beacon 200 is not able to make the calibration ad justment, it will
display the message Not Enough Response! CAL Failed for:
Channel 2, then return to the first calibration program screen which
asks if you want to continue or escape from the program. Press ENTER
to start the calibration process again or ESCAPE to return to normal
operation.

NOTE: Be sure to allow enough time between the application of

calibration gas and returning to normal operation for the gas
reading to return to normal levels to avoid false alarms. The alarm
circuits are active when the Beacon 200 returns to normal
operation.

Replacing the Fuses

The Beacon 200 includes three fuses: one DC and two AC fuses. To
replace other components of the Beacon 200, contact RKI Instruments,
Inc., for further information.

1. Turn off or unplug all incoming power to the Beacon 200 at the power

source end.

2. Open the housing door of the Beacon 200, then place the power switch

in the OFF position.

3. Locate the vertical fuse holders on eith er side of the power switch.
The DC fuse which is l abelled F1 on the P CB silk-scree n is on the le ft of

the power switch. The AC fuses are labelled F2 and F3 and are on the
right of the power switch.

4. Use a flat-blade screwdriver to rotate the applicable fuse holder 1/4

turn counterclockwise. The fuse holder releases from the socket.

50 • Replacing the Fuses

5. Remove the fuse holder from the socket, the n remove the fuse from the

fuse holder.

CAUTION: Verify that the r eplaceme nt fuse is the same t ype and rating a s

the fuse you are replacing.

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 200 at the power

source end.

9. Place the Beacon 200’s power switch in the ON position, then verify

that the PILOT light is on.

10.Close and secure the housing door.

Preventive Maintenance

Preventive maintenance of the Beacon 200 consists of daily, monthly, and
quarterly procedur es to ensure that the dete ctor head is op erating p roperly.
See the detector head instruction manual(s) for preventive maintenance
procedures that apply to the detector head(s)) supplied with your Beacon

200.

Preventive Maintenance • 5 1

Troubleshooting

The troubleshooting guide describes symptoms, probable causes, and
recommended act i on for problems you may encounter with th e Beacon

200.

NOTE: This troubleshooting guide describes controller problems only.

See the detector head instruction manual(s) for trouble shooting
procedures that apply to the detector head(s) supplied with your
Beacon 200.

Table 11: Troubleshooting the Beacon 200

Condition Symptom(s) Probable Causes Recommended Action

No Power

Frequent or
Suspect
Alarms

Flickering
Display

• The PILOT light is off.

• The display screens
are blank.

• The Beacon 200 alerts
you to frequent or
suspect alarms.

• The detector head’s
fresh air readings
remain on zero
(20.9 for oxygen).

• The display readings
flicker often.

• The power wiring is
disconnected or
misconnected.

• One or both AC fuses or
the DC fuse is blown.

• The display cable is
disconnected or
misconnected.

• The Beacon 200 is
experiencing false
readings due to RFI or
EMI.

• The detector head wiring
is disconnected,
misconnected, or
intermittent.

• The Beacon 200 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.

1. Verify that the wiring to the power source is
correct and secure.

2. At the Beacon 200, verify that the wiring to
the AC terminals is correct and secure.

3. Check the continuity of the applicable (AC
or DC) fuse.

4. Verify that the display cable is connected.

The display (ribbon) cable plugs into
connectors on the top edge of the
display board (labeled J1) and on the
top edge of the main circuit board
(also labelled J1).

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
instruction 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 200 housing.

4. Increase the alarm on delay setting in the
Channel Control & Setup Program.

5. If the frequent or suspect alarm difficulties
continue, contact RKI for further
instruction.

1. Verify that the detector head wiring is
properly shielded (see the detector head
instruction 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 200 housing.

4. Increase the noise filter setting in the
Channel Control & Setup Program.

5. Increase the zero suppression setting in
the Channel Control & Setup Program

6. If the display difficulties continue, contact
RKI for further instruction.

52 • Troubleshooting

Table 11: Troubleshooting the Beacon 200 (Continued)

Condition Symptom(s) Probable Causes Recommended Action

Buzzer not
Working

Reset Switch
not Working

Parts List

• 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 applicable alarm
circuit does not reset
when you press the
reset switch after an
alarm condition
passes.

• 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 wiring to the BUZ- and
BUZ+ 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 RESET (2)
terminals of the controller terminal strip is
correct and secure.

2. If the reset switch difficulties continue,
contact RKI for further instruction.

This appendix list s the part n umbers and descriptio ns for replacemen t parts
and accessories offered for the Beacon 200 Gas Monitor.

Table 12: Parts List, Beacon 200 Gas Monitor

Part No. 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
43-4170RK DC Fuse, 1/4” x 1 1/4”, fast acting, 6A
52-1016RK Buzzer
71-0059RK Beacon 200 Gas Monitor Operator’s Manual (this document)

Parts List • 5 3