GMA 200-MW4 is an integrated controller for up to 4 channels for fixed gas detection systems that are easy to install and manage, with different output options such as relays, 4-20 mA analog outputs, RS 485, among others. Ideal for small and medium-sized systems that require different transmitters with different technologies and measurement parameters:
- Controller of up to 4 channels for connection of up to 4 GfG transmitters
- Compatible with GfG transmitters for Combustible, Toxic and Oxygen sensors.
- Detection range depending on the sensor in ppm, % LEL, % Vol. or mg/m3
- Input of 4 analog signals of 4-20 mA or 0.2-1 mA and maximum input resistance of 50 Ohms
- 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 measurements and output data to a higher level control center or for connection to master relay modules.
- 1 RS485 ModBUS output
- 4 output relays (NO) fully configurable for a measurement point, an alarm value or collective alarms of several points
- 1 output relay for faults (NC)
- 2 fully configurable 4-20 mA analog outputs with 600 Ohms resistance.
- Option of relay modules increasing up to 64 relays per GMA 200 MT system (Using 4 additional relay modules)
- 3 independent alarms for each measurement point (AL1-AL2-AL3) completely configurable in the measurement range of each transmitter
- Operating temperature from -20 to 50°C
- Logging capabilities with microSD slot with configurable intervals from 5 s to 60 min and logging of instantaneous, average, maximum and minimum value
- Logging functions independently configurable for each channel
- LCD digital display with 5 buttons and LED indicators for status, alarms and relay condition (A total of 16 LEDs)
- Mini USB connection for parameter configuration via software with the option of saving different configurations
- Operation by current 20-30 VDC
- Degree of Protection IP65