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Problem
Possible cause
Wiring reversed
No output
No pressure or port blocked
Level probe failure due to wrong
supply voltage or power surge
Pressure port blocked
Output steady as pressure
Level probe over-pressurized
changes
Level probe failure due to wrong
supply voltage or power surge
Supply voltage too low
Full span output low
Load impedance too high or too low
Level probe over-pressurized
Level probe over-pressurized
Zero signal too low or too high
Level probe over-pressurized
Non-linear output
*) Adjusting the controller or display device can usually compensate for small changes or drifts in
the output signal. Test the system for proper operation after adjustments are made. An excessive change in the
output signal that cannot be corrected by calibration indicates possible transmitter damage. This may cause the
output to be non-linear, requiring transmitter replacement.
All manuals and user guides at all-guides.com
Remedy
Correct polarity
Check pressure port
Replace level probe
Check pressure port
Replace level probe
Replace level probe
Check supply voltage
Adjust load or supply voltage
)
Replace level probe *
)
Replace level probe *
Replace level probe
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