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F-5500 Thermal Mass Flow Meter Manual 06/17 - 2030 / 107023 Page 82
Model F-5500
TROUBLESHOOTING
Model F-5500
TROUBLESHOOTING
Troubleshooting Zero CAL-CHECK
®
If the F-5500 Meter fails a Zero CAL-CHECK
®
Calibration Validation test, there are a
few reasons that could be the cause:
1. The sensor may be dirty or damaged
• Visually inspect the meter for damage. If damage is found, meter may need
to be serviced. Contact ONICON Technical Assistance at 727-447-6140 for
more information
• Try cleaning the sensor and try the test again
• If the meter fails again, move to #2
2. The sensor may not be properly covered/isolated
• Out of Pipe:
• Wind currents (fans in room included) could be affecting the sensor
• Be sure to use a clean dry plastic bottle to isolate the sensor
• In Pipe:
• Make sure that there is a "no flow" or zero flow condition on the meter's
sensor
• Try the test again
• If the meter fails again, move to #3
3. The meter may not have stabilized properly
• Make sure the meter is not being affected by vibration or other movement
• Allow the meter to stabilize without being moved or touched for 15 minutes
• Try the test again
• If the meter fails again, contact ONICON Technical Assistance at 727-447-
6140
Troubleshooting: Zero CAL-CHECK
®
Troubleshooting
Zero CAL-
CHECK
®
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