troubleshooting: ultrasonic and radar level transmitters
TRANSCRIPT
Troubleshooting: Ultrasonic and Radar Level Transmitters
Did it ever work correctly?
• If the transmitter was just installed and it doesn’t work correctly, that is one thing.
• If the transmitter worked and then randomly stopped working, we might assume that something changed and needs to be remedied.
Some Common Sources of Failure:
• Intermittent or transient power to unit.• Condensation on emitter or transducer.• Physically moved or hit with something.• Spiderwebs.• Weather Conditions (temperature, moisture).• Steam or fog present? • Foam? • Noise.• Wiring.• Programming Change?
What is the problem?
• Does the unit ever have the correct level?
• Does it work intermittently?
• Did anything change with the unit or around the unit?
• How long did it work before the issue arised?
Understanding Signal Return:
Case Studies:
Questions????