Bacharach GDX-350 Gas Transmitters

Use Smart Sensor technology to provide accurate and continuous detection of toxic, combustible and asphyxiate gases.

Features

  • Pre-calibrated, user-replaceable Smart Sensors minimizes maintenance and downtime
  • Can be placed directly in hazardous environments where leaks occur for quick detection and rapid response
  • Available gases: ammonia, carbon dioxide, carbon monoxide, hydrogen, hydrogen sulfide, methane, nitrogen dioxide, oxygen, phosphine, propane, sulfur dioxide
  • Backlit LCD graphic display with 64 x 128 pixel resolution and bar graphing
  • 4-20 mA, optional Modbus RTU® and wireless interface
  • Easily update alarm set points, configurations or maintenance modes using the LCD display
  • 30-minute onboard data trend
  • 5 Indicator Lights: Alarm 1, Alarm 2, Fail, In Calibration, and RS-485
  • 3 configurable Form C (SPDT) alarm relays
  • Approvals: CSA: Division 1 & 2, Class 1: Groups B, C, D (excludes NH3)
  • Durable aluminum enclosure

The Bacharach GDX-350 gas transmitters use Smart Sensor technology to provide accurate and continuous detection of toxic, combustible and asphyxiate gases. The full-featured design of the GDX-350 includes a large LCD display, a 4-20 mA interface, programmable alarms, optional relays and a Modbus interface. Exclusive pre-calibrated replacement sensor technology makes occasional maintenance practically effortless. Rugged construction, intrinsic safety capability (in two-wire mode with barrier) and an explosion-proof housing allow the GDX-350 to operate directly in hazardous-rated areas of many industrial environments, delivering reliable, superior-sensing performance to protect human life, equipment and property.

With its large LCD display, the GDX-350 shows gas concentrations, engineering units and bar graphs along with the most recent 30 minutes of trend data. Utilizing the on-board magnetic keypad, users can also navigate through the display to change alarm set points, instrument configurations, or enter into maintenance mode for non-intrusive sensor calibration. For security, menu options also enable the selection of an authorization code to lock critical parameters. Accompanying the LCD display are standard LED alarm indicators that show when low and high alarm conditions are met. An optional relay board is available to provide three 5-amp relays that can be used to drive audible/visual alarms, or activate exhaust fans.