Public volumetric orifice gas meter Electronic SGD ETK GSM

The public volumetric orifice gas meter Electronic SGD ETK GSM consists of a gas-tight case in which an orifice-type measuring mechanism is placed, an electronic counting device with a corrector to bring the volume to standard conditions, a built-in shut-off valve and a wireless GSM data modem.

The measuring mechanism consists of chambers with built-in movable gas-tight partitions (orifices) made of special fabric.

The principle of operation of the meter is based on conversion of the pressure drop of the gas passing through the meter into reciprocating motion of the orifices of the measuring mechanism, which is converted through a lever mechanism into the rotational motion of the drive shaft. The signal is taken by a magnetically controlled sensor of the electronic corrector, which generates electrical pulses at the output, the number of which is directly proportional to the volume of gas passing through the meter.

Data for payment on the volume of gas consumed, reduced to standard conditions, is read from the LCD indicator of the electronic unit – the main display mode – and transmitted to the recording system via GSM channel.

The meters are equipped with a wireless modem for data transmission over GSM cellular networks. The meters ensure data transmission to the recording system in automatic mode with a specified frequency.

The meters have an embedded shut-off valve. The valve remotely shuts off the gas supply at the command of the metering system. The valve can only be opened with the permission of the system server.