Duomo GS100M Manual

GS100M Gas Detection Controller
GS100M 1 Zone Gas Detection Controller
1
Zone / Sensor
Conventional
Positive
Safety
4-20mA
IP44
EN61010-1
EN50270
FEATURES
■
Single Zone Protection
■
Positive Safety Option
■
Detection of Toxic 0-300ppm / Explosive Gas(es) 0-20%LEL /
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4-20mA signal sensor input
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3 Alarm Stages - 1st & 2nd Pre Alarm and Main Alarm
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IP44 Protective Rating
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CE Certified and approved to EN61010-1 and EN50270
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2 Year Guarantee - 3 Year by Registering at duomo.co.uk
OPERATION
The GS100M can be configured to detect explosive or toxic
gases. An LED display indicates sensor statuses and faults. When
the connected sensor detects the presence of the target gas a
proportional 4-20mA signal is sent to the detector.
The GS100M then operates a pre-alarm relay (used for remote
sirens or visual indicators). If the level of gas continues to rise, then
the second pre-alarm is actuated.
In the case of explosive gases, when the level of gas reaches 20%
LEL, the main alarm relay is activated to break the electrical supply
to the gas safety shut-off valve (SSOV). A separate volt-free sensor
fault relay actuates if the correct return signal is not sensed by the
detector.
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SPECIFICATION
Power
Power Supply
230V AC 50Hz ± 10%
Secondary Battery
12V DC ± 10% Max 2.2Ah
Battery Charger
Charger Capacity 2.2Ah
Power Consumption 11W Maximum @ 13.8V
Relay contact range
10A resistive
Alarm Settings
Pre-Alarm No.1
8% LEL / 120ppm
Pre-Alarm No.2
13% LEL / 200ppm
Main Alarm
Fixed at 20% LEL / 300ppm
Sensor Fault Short circuit, interruption, sensor deterioration
Technical Specification
Dimensions Width 144mm | Height 144mm | Depth 110mm
Display
N/A
Mounting
Wall or Panel Mounted
Input Signal 4-20mA
Device Precision
1% FS
Reaction Time
<10 seconds
Working Temperature
-10°C to 40°C
Start-up Self diagnostic Delay
90 seconds
Protective Rating
IP44
Configuration
Positive Safety
Yes (ON/OFF)
Main Alarm Relay Actuation
Yes (Latching/Temporary Alarm)
Gas Type Selection Yes (Toxic/Explosive)
Timed Sensor Test Facility
No
Emergency Stop Connections
No
O Compatibility as Standard No
2
Perhipheral Specification
No. of Remote Sensors
1
Maximum Sensor Distance 100m
Cable Diameter for Sensors
1mm
(Screened and earthed at the controller end)
Compatibility
Sensor Compatibility
All Duomo Sensors
Approvals, Certifications and Guarantee
Approvals
EN 61010-1 EN50270
Guarantee
2 Year as Standard
3 Year by Registering at www.duomo.co.uk
1
CSA
2