Q1: Can an ultrasonic flow meter have perfect accuracy?
A1: In an ideal world, the flow readings from your process meter would be exactly correct, without any type of deviation. Unfortunately, this is not the case, and the errors inherent in measurement must always be identified, accounted for, and minimized as much as possible.
Q2: Does an ultrasonic flow meter need to be calibrated?
A2: During the production of a flowmeter, several steps are required such as coil winding, lining processing, and electrode assembly. This series of operations can cause a certain amount of error and dispersion in the device, so a calibration process is required to correct the accuracy.
Q3: Do ultrasonic flow meters have temperature compensation?
A3: Yes. As long as these temperature variations are within the temperature compensation range, the output reading compensates for the temperature variations.
Do I need to filter the gas entering the meter?
Yes. These meters use a tiny sensor element that is exposed to the gas stream. If this sensor is contaminated, the accuracy may be permanently altered and the sensor may be damaged. It is recommended that a HEPA-rated filter be used upstream of the flow meter. Important: If If you always use clean gas, your flow meter will remain stable and accurate.