SINGLE SENSOR GAS DETECTION SYSTEM
A fixed dual sensor gas alarm unit that meets the requirements for economic and reliable monitoring of gas levels in a wide range of environments, from commercial premises through to heavy industrial applications that may require hazardous area sensing. The GDS102 may be utilised as a standalone unit or as an addressable sensor forming part of the GDS Combi CANbus addressable network system and therefore offering the features of our most advanced system.Typical monitor locations are – public buildings, boiler plant rooms, swimming pools, water treatment works,H&V control systems, manufacturing and process plants.Fixed gas detection systems UK provide more reliability and safety, guaranteeing adherence to industry guidelines.Our devices in the fixed gas detection systems UK ensure effortless incorporation into various working environments, providing instant alerts for potential gas hazards. Fixed gas detection systems are important to ensure the safe environment within industrial and business premises.
Measuring Range
- Combustible Gas – LEL, % Vol
- Toxic Gas – ppm
- Oxygen – % vol – Depletion/Enrichment
- Any 4~20mA source input signa
Indicators
- Two line alphanumeric backlit display
- System Normal – Green / Blue display
- Alarm 1 (Low Alarm) text
- Red screen flashing 1 sec + sounder
- Alarm 2 (High Alarm) text
- Red screen flashing 0.5 sec + sounder
- Alarm 3 (Overrange Alarm) text
- Red screen flashing 0.25 sec + sounder
- Fault
- Amber screen flashing + sounder
Power Supply
- 24v nominal 18v to 30v DC
- Mains 100~240vAC 50/60 Hz
- The two voltages may be utilised simultaneously –
- standby supply
Alarm Settings
- Digital setting
- Delay to alarms 0~255s
- Relay off delays 0~255s
GDS Sensor Types
- Catalytic - 4~20mA / mV Bridge
- Electrochemical - 4~20mA
- Infrared - 4~20mA / mV Bridge
- PID - 4~20mA / mV Bridge
- Semiconductor - 4~20mA / mV Bridge
- E-Stop - 4~20mA / mV Bridge
Sensor Cable
- 3 core standard, 2 core option for simple electrochemical
- transmitters, 1mm2 screened – 500m
Sensor Inputs
- (CH1) Bridge type direct 3 wire detector mV signal
- (Catalytic, IR, PID, Semiconductor, E-Stop)
- (CH2) 4~20mA analogue transmitter signal –source
- (Catalytic, Electrochemical, IR, PID, Semiconductor, E-Stop)
Control Unit PCB
Power Consumption
- 4 watts – full alarm
Outputs
- 1, 2, 3 (alarm) and 4 (fault) alarm relays – SPCO normally
- de-energised – energised latched or unlatched options
- Relay 3 selectable:-
- Duplicate Relay 1, 2, 4 or resettable global alarm relay
- Relay 4 selectable:-
- Fault or resettable global alarm relay
- All contacts rated 3A – 230v AC
- Selectable inhibit active indicator or resettable sounder
- output – o/c 100mA – 24v DC (Y – Output)
- 4~20mA signal output, sink/source.
- CANbus
- Internal mains power supply 24vDC @1.2A
- available to user 500mA
Logging
- Intervals – Variable time
- Rollover / stop
- Storage – 2,880 readings
Miscellaneous
- Passcode entry
- Operating temperature –15 to +50˚C
- Storage temperature –5 to +55˚C
- Alarm relay inhibit during calibration
- X – Input – external input to 0V
- Sounder Isolate – mute link
- System function test
- Dimensions L 145mm H 145mm
Miscellaneous
- Passcode entry
- Operating temperature –15 to +50˚C
- Storage temperature –5 to +55˚C
- Alarm relay inhibit during calibration
- X – Input – external input to 0V
- Sounder Isolate – mute link
- System function test
- Dimensions L 145mm H 145mm
- D 65mm (S) shallow box
- D 100mm (D) deep box
- Weight 0.8 kg
- Protection IP64, IP66 over housing option
- Field Terminals – screw type 2.5mm
- Cable entry – top, bottom, sides, rear Document of Conformity C1943
