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　　ITRON Electronic Correction InstrumentThe manufacturer believes that the Roots flowmeter is a high-precision volumetric flowmeter, mainly used for the trade measurement of valuable items. It has advantages such as high accuracy, good reliability, lightweight, long service life, easy installation, and a display that shows instantaneous and cumulative flow data, as well as remote transmission of various data analogs, which has been recognized and affirmed by many customers.

The manufacturer of the ITRON Electronic Correction Instrument believes that the Roots flowmeter, also known as a rotary flowmeter, is named so because during measurement, two pairs of intermeshing gears rotate under different front and back pressure conditions. After rotation, the medium enters the metering chamber composed of the housing and gears, where the volume is fixed. Each rotation of the gears displaces a fixed volume of medium. The measurement result is obtained by detecting the number of gear rotations.

The manufacturer believes that the measurement accuracy of the Roots flowmeter determines the precision of the flowmeter's component processing. If the measurement accuracy exceeds a certain level, the degree of fit between the two rotors increases, and the gap between the rotor and the wall of the metering chamber decreases. The measurement error of the Roots flowmeter is mainly caused by the fit gap between the rotor and the wall of the metering chamber.

　　ITRON Electronic Correction InstrumentThe manufacturer believes that when the flowmeter is used to measure uneven gas consumption, it can also produce significant errors. When the gas consumption is too low, below the initial flow rate of the Roots flowmeter, the flowmeter will not accumulate, or the accumulated value will be less than the actual true value, leading to a large deviation in the measurement data of the flowmeter. When the matching accuracy of the flowmeter is high, the requirements for the measuring medium become stricter, which will lead to different specifications for the filter, preventing the flowmeter from jamming.

The manufacturer of the ITRON Electronic Correction Instrument believes that the characteristics of the Roots flowmeter are as follows:

1. High accuracy and good frequency. The external rotor is carefully processed and balanced, with no military tampering, and good oil lubrication ensures that the accuracy of the flowmeter remains unchanged, with a long service life.

2. Small initial flow and large range ratio, suitable for measuring gas flow with significant load changes.

3. The manufacturer of the ITRON Electronic Correction Instrument believes that the measurement accuracy of the Roots flowmeter is not affected by pressure and flow changes, with stable performance and long service life.

4. Good general performance, all Roots flow sensors can use universal accessories.

5. The RS-485 communication interface is configured to work with a dedicated signal collector for flag lights, allowing for remote data packaging and monitoring through GPRS/CDMA, the internet, and mobile internet, facilitating data aggregation, packaging, and real-time planning.

6. The manufacturer of the ITRON Electronic Correction Instrument believes that the circuit of the Roots flowmeter uses surface mount technology, has strong structural clustering, strong anti-interference measures, and high reliability.

7. The software uses high-performance microprocessors and modern digital filtering technology, with strong compatibility and high reliability.

8. It uses floating-point operations and active modification of five-level instrument coefficients, with deterrent self-diagnosis and alarm functions.

9. It employs low-power high-tech technology, powered by both internal and external power sources, resulting in low overall power consumption.

10. It reflects flow values on-site and provides various signal output listening.