Which are the commons inspection (preventive maintenance) for ultrasonics flowmeters and what variables I shoud check (speed sound, velocity, noise, etc) which are the maximun and minimun values for acceptance. the flowmeter is for custody transfer. somebody have a guide or procedure?
Ultrasonic meter inspection services include:
- Collection and review of meter log files including speed of sound (SOS), signal acceptance rate, gain and gain limit data
- Comparison of previous months trend or baseline logs to current test data to detect any change in performance which would indicate special maintenance is required to avert meter failure
- Temperature and pressure values are verified and transmitters are calibrated where required and
- Where online GC is associated, gas quality data is verified to ensure accurate SOS calculations
thanks, but for speed of sound (SOS), signal acceptance rate, gain, gain limit data, etc. what are reference values, I dont have previous months trend.
can u give more details about your meter
make model no size
All the details u found in USM calibration certificate