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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.



16 channel alarm controller


Two 8-channel 4 to 20 mA


Backlit graphic LCD 128 x 240 pixel; 3 status LEDs per channel


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


13 to 140 ºF (-25 to +60 ºC)

Housing Options

NEMA 4X / IP 65; 1/2 19" Rack; NEMA 7


Approx. 13” x 16” x 8.7” (330 x 410 x 220 mm)


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