4 Channel Gas Detector Controller-GMA-200 MW4

4 Channel Gas Detector Controller-GMA-200 MW4

The GMA200-MW4 controller is suitable for complex gas detection systems with up to 16 transmitters (up to 4 of which are analog). Safety measures can be connected directly to the GMA200-MW4 via internal relays. Current measured values, alarms and transmitter-specific statuses can be viewed directly on the controller screen.

The transmitter continuously monitors flammable or toxic gases and vapors present in the ambient air as well as the oxygen concentration. The controller displays the measured gas concentration centrally and processes the incoming signals.

Product Details


  • Up to 16-channel controller for connection of up to 16 GfG transmitters
  • Compatible with GfG transmitters for flammable, toxic and oxygen sensors
  • Sensor-dependent detection range in PPM, % LEL, % Vol or mg/m3
  • Input 16 analog signals 4-20 MA or 0.2-1 ma and maximum input resistance 50 Ohm
  • 2 Digital Inputs And 2 RS 485 bus inputs for connection of external relay modules or digital transmitters in bus connection
  • 1 RS 485 input for digital transfer of measurement and output data to a higher-level control center or for connection to a master relay module
  • 6 fully configurable output relays (NO) for measuring points, alarm values or multiple point collective alarms
  • 1 output relay for fault (NC)
  • 2 analog outputs 4-20 MA with 600 Ohm resistance Fully configurable
  • Upgradable relay module option up to 64 relays per GMA 200 MT System (using 4 additional relay modules)
  • 3 independent alarms for each measuring point (AL1-AL2-AL3) fully configurable within the measuring range of each transmitter
  • Operating temperature from -10 to 50°c
  • MicroSD slot registration capability with configurable intervals from 5 seconds to 60 minutes and record of instantaneous, average, maximum and minimum values
  • Independently configurable logging function for each channel
  • Digital LCD display with 5 keys and led indicators for status, alarm and relay status (16 LEDs in total)
  • Mini USB connection for parameter configuration Via Software with option to save different configurations
  • Operating current 20-30 VDC
  • Easy DIN-Rail mounting
  • Connection for siren and strobe light

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Frequently Asked Questions

Can we find the PT HAS product on the e-catalogue (LKPP) ?

Absolutely, almost all PT HAS products can be found in the e-catalogue.

How about the warranty for products from PT HAS ?

PT HAS Supply’s products include a 1-year official warranty for damage caused by manufactured defects.

Has the PT HAS product been calibrated? What if the calibration period is over?

Products from PT HAS have been calibrated and are ready to use. For further calibration, PT HAS already has a calibration lab that is ISO 17025 accredited and is ready to help customers who need recalibration.

What if the product has a problem and needs repair?

PT HAS has a local service center (in Jakarta), and our technicians are trained in the manufacture of the products we are agents for. For repairs and troubleshooting, we try to do it locally. and we make sure that the spare parts we supply are official spare parts from manufacturers.

Do we get training on using the tool after making a purchase at PT Has?

For all product purchases at PT HAS, usage training is included and is unlimited.

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