Mobile Gas Meter GM-1

Mobile Gas Meter GM-1 is designed to work in all types of mine railways (floor-mounted rail, monorail, diesel-locomotive, battery-powered), longwall shearers, roadheaders and all the other moving machines used in mines. It is designed for continuous operation.

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Product Description

Description of product

GM-1 has four relay outputs. These outputs can be used for driving power switch to machines e.g. in case of exceeding the concentration of methane. Gas meter beside relay (opto-mos) outputs has RS422 interface and analog output (depending on device version it can be voltage output 0-10V, 0-5V or current output 4-20mA).

The Mobile Gas Meter system consist of three cooperating types of devices:

Junction Box GM-1JB/x (main controller)

Terminal Box GM-1TB (user terminal)

The Remote Probe R-X (gas sensor)

The device is equipped with rechargeable battery. In case of no external power supply the device can operate autonomously for a period of about 10 hours. Mobile Gas Meter GM-1 is M1 category device.

Technical Data

Power supply:	Un = 10V÷16V, In = 500mA (Un = 12V)
Power supply autonomy:	10 hours
Measurement method:	using attached probe, type R-x
Display:	LCD
Casing internal protection::	IP-54
Explosion-proof mark:	GM-1JB/x : M1 Ex ia I Ma; GM-1TB: M1 Ex ia I Ma
Type test certificate:	GM-1JB/x : TEST 14 ATEX 0063X; GM-1TB: TEST 14 ATEX 0062X