GDA-1600 – 16-channel 4-20mA input controller


Sixteen Channel Alarm Controller
  • Control system for up to 16 transmitters
  • Large LCD shows real-time gas concentrations, sensor information
  • Complete calibration functionality
  • Non-volatile memory retains all configuration data
  • Optional discrete channel alarm relays



The GDA-1600 Controller offers premier performance and functionality in a standalone controller. From one to sixteen channels, the GDA-1600 is designed to provide operators the most detailed, real-time information about gas concentrations throughout the facility. Information is relayed via a large LCD that shows real-time gas concentrations, sensor location, sensor type and historical data trends.

Each GDA-1600 channel has three independent, user-programmable alarm threshold values that allow for flexibility in alarm notification. When alarms occur, operators are notified via LED alarm indicators on the front panel, clearly showing the location and status of the alarm. Two internal relays can be utilized to control fans, horns, or beacons when alarm thresholds in specific areas are exceeded.



The system is dedicated primarily to cooperation with existing, installed gas sensors from different manufacturers.

In the case of design and installation of a new detection system, it is recommended to use MGS-500 or C3-NET sensors equipped with digital Modbus outputs, plugged to MC3 or ASIX control system.

The digital signal, unlike the analog 4-20 mA signal, is a non-modifiable and undeniable signal that guarantees above-average information security.



Type 16 channel alarm controller
Inputs Two 8-channel 4 to 20 mA
Display Backlit graphic LCD 128 x 240 pixel; 3 status LEDs per channel
Power 10 to 30 VDC
Alarm Relays, Common 3 standard, SPDT
Rating: 5 A @ 30 VDC or 250 VAC, resistive load
Alarm Relays, Discrete 8 optional, SPDT, max 2 cards
Rating: 5 A @ 30 VDC or 250 VAC, resistive load
Analog Outputs (Optional) Eight 4 to 20 mA, max 2 cards
Serial Ports Modbus® RTU via RS 485
Temperature 13 to 140 ºF (-25 to +60 ºC)
Housing Options NEMA 4X / IP 65; 1/2 19" Rack; NEMA 7
Dimensions Approx. 13” x 16” x 8.7” (330 x 410 x 220 mm)
Approvals CSA C22.2 No 1010.1; 152 for Combustibles; ISA S82.02; UL 1604; C22.2 No 213 (Div 2 Groups A,B,C,D); EN 55011; EN 61000; CE



GDA-1600 DataSheet
GDA-1600 Manual
GDA-1600 Declaration of Conformity
GDA-1600 BACnet-Interface