Gas meters Grand

Grand gas meters allow for metering of consumed gas:

• in apartments;

• in private houses;

• in other utility and household facilities

Depending on modification, meters can perform electronic correction of gas volume by temperature of the measured medium.

Measurement method:

The Grand series instruments are based on the jet method of measurement.

The method's simplicity allows for maximum simplification of the instrument design, while making it compact and reliable.

The jet method is based on the dependence of the jet oscillation frequency in a fluid oscillator on volumetric gas flow rate. Jet oscillations in the fluid oscillator are converted into an electric pulse signal, which in its turn comes to the analogue-digital unit and is converted into the gas volume value and is recorded on an accrual basis. All the Grand series instruments are noiseless, it is also ensured by the construct of the fluid self-oscillator.

Advantages of method:

• High reliability of instruments due to absence of moving parts;

• Can be mounted in the vertical and horizontal position;

• Noiselessness of metering instruments;

• Compactness of metering instruments.

Limits of permissible relative error during gas volume measurement, % in the flow rate range:
Qmin≤Q<0.2Qmax:

Joining thread of coupling nut, G

Overall dimensions (length, width, height), mm, not more than