GDA-400

GDA-400

Four Channel Alarm Controller

Control system for up to 4 transmitters
Graphic LCD shows real-time monitoring
Complete calibration functionality
Non-volatile memory retains all configuration data
Optional discrete channel alarm relays

Description

Bacharach’s GDA-400 controller is designed to provide simultaneous display and alarm functions for up to four fixed-system monitors with 4 to 20 mA inputs. Real-time data displayed on the LCD includes gas type and concentration, bar graphs and 30-minute trends.

The GDA-400 is equipped with a fault and three adjustable alarm levels per channel. Relay outputs allow control of audible and visual alarms, strobes, horns, and other alarm events. Options such as 4 to 20 mA or Modbus® RTU outputs and discrete alarm relays are easily added.

Specifications

Type	Four channel alarm controller
Inputs	Four 4 to 20 mA
Display	Backlight graphic LCD, 128 x 64 Pixel; 6 status LEDs
Power	100 to 240 VAC, 24 VDC
Alarm Relays, Common	2 Standard, SPDT Rating: 5 A @ 30 VDC or 250 VAC, resistive load
Alarm Relays, Discrete	6 optional, SPDT Rating: 5 A @ 30 VDC or 250 VAC, resistive load
Analog Outputs (Optional)	Four 4 to 20 mA
Serial Port (Optional)	Modbus RTU via RS 485
Temperature	13 to 122 ºF (-25 to +50 ºC)
Housing Options	NEMA 4X / IP66; NEMA 7 optional
Dimensions	8.0” x 10.0” x 6.25” (210 x 255 x 160 mm)
Approvals	CE Mark, CSA/UL Div 2 (Pending); NEMA 7: Div 1, Group B