Gas Detection (Australia) Pty Ltd
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- Model GDA 4022 - Two Channel Gas ...
Model GDA 4022 -Two Channel Gas Detection Controller
The GDA 4020 control unit has 2 x 4-20 mA i/p with 3 associated programmable relay alarm levels per sensor. There is an independent fault relay. There are 3 x analog o/p’s which can be configured for either channel as 4-20 mA, 0-20 mA, 0-5 V or 0-10 V. The controller has an isolated RS485 o/p which can be configured to drive modbus or an interface to the M2001 mimic panel. All configurations are carried out via the front panel push buttons. The unit requires 24 VDC. Designed, manufactured and supported locally in Australia.
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- Low profile mounting (Optional flush mounted)
- Easy to install
- No servicing requirements
- 3 x Alarm relays per sensor (SPCO)
- Faults relay (SPCO)
- Isolated Modbus output RTU
- 3 x Programmable 0-20 mA or 4-20 mA o/ps (Optionaly 0-5 V or 0-10 V o/ps)
- Real time display of gas levels, alarms and location
- Internal buzzer
- All parameters user programmable
- Detectable Gas Ranges 1 or 2 sensors (ranges user programmable to suit each sensor)
- Power Requirements +24 VDC
- Output Types 3 X SPCO alarm relays per sensor + 3 x Analog o/ps congigurable as 4-20 mA, 0-5 V, 0-10 V
- Output Specifications relays: 2A non inductive 220 VAC , Modbus RTU; 3 x 4-20 mA max loop R = 800 Ω
- Power Consumption ~5 W (Excluding sensors and external 24 VDC loads)
- Connection Plug in sockets
- Operating Temperature -10 - 40°C
- Operating Humidity 5% to 95% RH peak non condensing
- Technology SMT with LCD display
- Dimensions 240 x 176 x 75 mm (W x H x D)
- Enclosure Material ABS Plastic
- Enclosure Rating IP40
- Warranty 24 months from date of dispatch