GDA-400 Four Channel Alarm Controller0 pages
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nnnn^~ GDA-400
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Bacharach's GDA-400 four channel controller is designed to provide simultaneous display and alarm
nnnnfunctions for up to four monitors with 4-20 mA inputs. A graphic LCD displays monitored data as gas
nnnntype and concentration, bar graphs and 30 minute trends. Three adjustable alarm levels are provided
nnnnper channel. Relay outputs allow control of audible and visual alarms, strobes, horns, and other alarm
nnnnevents.
nnnnEasy Configuration and Simple Calibration
nnnnThe Bacharach GDA-400 is equipped with a fault and three alarm levels per channel with features such
nnnnas ON/OFF delays, latching relays, and alarm acknowledgement. A dedicated horn driver circuit for a
nnnnlocal audible alarm is also standard. Two standard, 5-amp alarm relays are configurable via the "alarm
nnnnvoting" menu to trigger relays based upon various alarm combinations. If more relays are required an
nnnnoptional relay board can be added.
nnnnThe GDA-400 is easy to configure and offers flexibility to meet the most demanding applications. A real-
nnnntime clock and calendar are standard and non-volatile memory retains all configuration data indefinitely.
nnnnOptions such as 4-20 mA outputs, discrete relays for each alarm are easily added. RS-485 (Modbus®
nnnnRTU) or Ethernet (Modbus® TCP) ports are also available for sending data to PC's, PLC's, DCS's, or other
nnnncontrollers. The GDA-400 also has complete calibration functionality for each input channel. This unique
nnnnfeature allows maintenance and service personnel to use the controller to calibrate the Bacharach
nnnnGDX-150 simple sensor.
nnnn1-800-736-4666 724-334-5000 www.MyBacharach.com help@MyBacharach.com
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