For ultrasonic gas meters, the core component is the 200KHz (500KHz) ultrasonic gas flow sensor. To ensure accurate and stable measurement, the 200KHz/500KHz ultrasonic gas flow sensor must meet a series of stringent technical requirements. Below is a summary of the key performance indicators and evaluation dimensions for 200KHz/500KHz sensors, facilitating quick understanding for sensor selection.

1. Metrological performance:

High Precision and Repeatability: Ensure that the indication error and repeatability measurement results meet the standard (e.g., Class 1.5 accuracy) at different flow rates.  

Wide flow range ratio: Capable of accurately measuring a broad flow range from extremely low (e.g., 0.016 m³/h) to extremely high (e.g., 160 m³/h).  

2. Installation and Structure:

Pollution-resistant design: For instance, innovative structures such as "L"-shaped flow channels can effectively prevent impurities from contaminating the probe, ensuring long-term accuracy.  

Integrated design: The functions of measuring flow rate, temperature, and pressure are integrated into a single probe, enabling comprehensive correction and enhancing measurement accuracy.  

No moving parts: Fully electronic operation with no mechanical wear, theoretically longer lifespan and more stable performance.

3. Environmental Adaptability:

Wide-temperature operation: Must function normally within the standard-specified environmental temperature range (e.g., -10°C to +40°C) or even broader.  

Pressure tolerance: capable of withstanding a maximum working pressure not exceeding 50 kPa.  

Explosion-proof and protection: Must meet the specified explosion-proof rating (e.g., ExibIIBT3 Gb) and protection rating (e.g., IP54/IP65) to ensure safety.  |

Electromagnetic Compatibility (EMC): Not affected by electromagnetic interference and not causing interference to other devices in an electromagnetic environment.  

Mic Metering (Shenzhen) Co., Ltd. offers high-performance, high-stability 200KHz and 500KHz ultrasonic gas flow sensors(transducers), meeting your requirements for gas meters with varying performance specifications. For detailed information, please visit www.micmetering.com or contact robert@micmetering.com.