Ultrasonic gas meter | Sarf G6 | +Modem, SIM Card, sgons, Certificate

This is a modern high-tech device that uses an ultrasonic measurement method and, unlike other meters, makes it possible to diagnose an increased error in the calculations of the device and promptly signal an error, which is an important factor in calculations between the gas Supplier and the Consumer. The error of meters with a mechanical measurement method is growing from year to year, without providing for the possibility of diagnosing increased inaccuracies in gas accounting, incorrect accounting is conducted, leading to more and more losses of the consumed volume of gas.

The ultrasonic meter measures the gas based on the passage time of ultrasonic pulses, the gas flow rate and calculates the operating volume flow from the data obtained. In this case, the effect is used, according to which ultrasonic pulses propagate faster in the direction of flow than in the opposite direction. Each sensor is both a transmitter and a receiver.

SARF meters use a revolutionary development of the world's leading company Panasonic – an ultrasonic measuring module. This module was invented and patented by Japanese physicists. A distinctive feature of the module is - conducting measurements by ultrasonic method at a frequency of 500 kilohertz with the highest accuracy allowing to achieve an accuracy class of 0.5.

SARF gas meters, when calibrated at 7 flow points, have errors of up to 1% at each flow point, a temperature sensor is built into the meter's measuring channel. With temperature changes, the volume of gas can be increased or decreased. Based on the data received from the temperature sensor, the meter makes calculations, bringing the measured volume to standard conditions at a temperature of +20 degrees Celsius, which is an important factor when measuring the actual volume of gas consumed and not the volume changed depending on the temperature.

The main advantages of ultrasonic gas meters are:
- ergonomic compact design. - clear and reliable interface.
- protection from external influences from IP54 to IP65, depending on the model.
- absence of mechanical moving parts in the meter housing.
- indication of the reduced and working volume as well as the current consumption of the consumed gas, allows the Supplier and the Consumer to track the actual gas consumption of the installed gas equipment.
- Availability of autonomous lithium power supplies – 10 years of service.
- high temperature range from -25 to +55 degrees Celsius.
- automatic reduction of the consumed volume of gas to standard conditions at a temperature of +20 ° C
- High measurement accuracy – only ultrasonic meters are calibrated at 7 flow points, which makes it possible to achieve up to 1% error and increase the accuracy class to 0.5. - High sensitivity of the gas flow – from 0.002m3/h, flow sensitivity when the smallest gas stove burner is turned on to a minimum.
- Ease of operation, availability of an effective self-diagnosis system. Promptly signals errors.
- detects excess of the maximum allowable volume
- prevents unauthorized gas intake by closing the valve and indicating an error on the display.
- High reliability. When going beyond the exceeded operating pressure range, the gas meter does not break.
- The ability to diagnose the meter's operability directly at the installation site without dismantling.
- The possibility of wireless removal of archived data through the optical port of the counter.
- Long service life. Due to the simple design and increased resistance to negative external factors such as the presence of foreign impurities in the gas composition (sand, pipe dust, high humidity, etc.), ultrasonic gas meters last much longer than most analogues of other types.
- The possibility of preserving archival information about the volume of gas consumed. SARF ultrasonic meters can be made to meet various requirements of the Customer's Gas companies and have the ability to support all types of Customer and have the ability to support all types of communication