Pilot Communications Twin Channel Gas Alarm User manual

Gas Detection Specialists
TWIN-CHANNEL GAS
ALARM
USER MANUAL

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Contents
1. Introduction ............................................................3
2. Your Device.............................................................4
2.1 Front Panel & LED Indicators ............................5
2.2 Liquid Petroleum Gas Sensor............................7
2.3 Technical Specification......................................8
3. Installation ..............................................................9
3.1 Wiring..............................................................10
3.2 Pin Definitions.................................................11
4. Initialisation & Testing ..........................................12
4.1 Initialisation ....................................................12
4.2 Testing ............................................................13
5. Alarm.....................................................................14
6. Troubleshooting....................................................15
7. Sensor Replacement .............................................16
8. Warnings...............................................................17
9. Contact Details......................................................18

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1. Introduction
Welcome to the user manual for your new Pilot
Twin-Channel Gas Alarm! This document is
designed to guide you through the installation,
operation and initial testing of the device, as well
provide information on any operational queries
or troubleshooting issues you may have.
The Twin Channel Gas Alarm is ideal for small and
medium sized vessels as it supports two LPG
sensors.
This product range provides critical safety
features against extremely dangerous or deadly
gases. This responsibility requires maximum
reliability which is why all our products endure an
extensive testing procedure before leaving Envin
Scientific.

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2. Your Device
Your device is a Twin
Channel Gas Alarm.
The device supports 2x
Liquid Petroleum Gas (LPG)
Sensors and will work with
12V or 24V systems.
In the box you will have:
•1 Twin Channel Gas Alarm
Main Unit
•2 LPG sensors with 3.5m
cable
•1 User manual
•1 Sensor awareness slip
LPG Sensor
Alarm Main Unit

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2.1 Front Panel & LED Indicators
The first LED on the front panel
of your Twin Channel Gas Alarm
is the Power Indicator. This LED
illuminates green when the unit
is powered on.
State
Power
The unit is power on correctly.
(off)
There is no power to the unit. Check wiring
and that the device is switched on.

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Next, you will see two LED’s and a button for
each channel. The first is the ALARM LED and will
illuminate red when gas is detected. The second
is the FAULT LED and will illuminate yellow when
a fault is detected.
The test button can be used to see if the unit
alarm is operating correctly. For more in-depth
testing see section 4.

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2.2 Liquid Petroleum Gas Sensor
The LPG sensors detect
butane/propane and
alarms at 25% LEL
(lower explosive limit).
LPG gases are heavier
than air, therefore the
LPG sensor must be
located near to the floor.
State
Channel LED’s
An OFF LED shows that the channel is
operating correctly.
SOLID yellow FAULT LED indicates a
FAULT. Check all sensor wiring
connections.
SOLID red ALARM LED indicates the unit
is ALARMING

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2.3 Technical Specification
Specification
Value
Description
Supply Voltage
12/24V
Supply from your
system battery
Current Draw
(Standby)
140mA
When alarm not
sounding
Current Draw
(Alarming)
140mA
When alarm is
sounding
Number of
sensors
2
Supports 2 LPG
sensors
Dimensions
70 x 40
x115
(W) x (D) x (H)

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3. Installation
You will need a small flat head screwdriver and
some cable to install your alarm.
Power Supply
•The power supplied must come from the vessel’s
Master Switch in order to activate the Gas Alarm
whenever the power is on.
•The Twin Channel Gas Alarm will work on a 12V
or 24V supply.
Suitable Installation Locations
•The main unit should be in a location where the
alarm is audible and the LEDs can be seen. It must
be protected from the elements and the
ventilation holes should not be covered up.
•The LPG sensors should be mounted as low as
possible in a position where they will remain dry –
near gas appliances at floor level or just
underneath floorboards is ideal.
•There are cable routing and mounting holes on the
rear and bottom of the unit casing.