Daily Maintenance
Regularly remove dirt, dust, scale, deposits, or biofilm from the surface of the flowmeter and sensors. These contaminants may affect the accurate transmission of ultrasonic signals, thereby reducing measurement accuracy.
Use suitable materials and cleaners for cleaning, avoiding those containing chemicals that may damage the equipment.
Handle gently during cleaning to avoid physical damage to sensors and probes.
Check Installation
Regularly check the installation of the flowmeter to ensure good coupling between the sensor and the fluid pipeline, without looseness or displacement.
Inspect connecting pipes for leaks or damage. If installation looseness or displacement is found, adjust and tighten them promptly. For leaky pipes, repair or replace them in a timely manner.
Regularly monitor the accuracy of the flowmeter readings, comparing them with standards or adjacent flowmeters to identify potential errors or issues.
Monitor the environmental conditions where the flowmeter is located, such as temperature, humidity, and corrosivity, to ensure it operates in a suitable environment. Adverse environmental conditions may accelerate equipment aging and damage.
Regular Verification and Calibration
Regularly verify the flowmeter by comparing its data with standards, completing calculations based on the measured data to ensure the accuracy of the flowmeter meets specified requirements.
Calibrate the flowmeter regularly according to the manufacturer's recommendations. The calibration period may vary depending on the equipment model and operating environment, and it is recommended to follow the manufacturer's guidance.
Calibration methods include using a higher-accuracy portable flowmeter for direct comparison, comparing measured values with standard values, calculating relative errors, and adjusting coefficients to ensure that measurement errors meet requirements.
Maintenance for Different Types of Flowmeters
External Clamp-on Transducer Ultrasonic Flowmeters: Regularly check if the transducer is loose and if the adhesive between it and the pipeline is normal.
Insertion Ultrasonic Flowmeters: Regularly clean impurities, scale, etc., deposited on the probe and check for water leakage.
Integrated Ultrasonic Flowmeters : Check if the flange connection between the flowmeter and the pipeline is good and confirm if the on-site temperature and humidity affect its electronic components.