Dwyer UFB - Manual (Page 42)

5: Troubleshooting
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4-20mA ERRORS
Calibration 20mA Error! NOTE: The 4 to 20 mA output is calibrated before the instrument leaves the factory
and should not require further adjustment.
Interpretation: You have adjusted the DAC outside its accepted range when
calibrating the 20 mA signal output.
Response: Re-calibrate the 4 to 20 mA output – see Paragraph 3.4.1.
Calibration 4mA Error! NOTE: The 4 to 20 mA output is calibrated before the instrument leaves the factory
and should not require further adjustment.
Interpretation: You have adjusted the DAC outside its accepted range when
calibrating the 4 mA signal output.
Response: Re-calibrate the 4 to 20 mA output – see Paragraph 3.4.1.
SET-UP ERRORS
ERR:Pipe OD range! Interpretation: You have entered an out-of-range value for the pipe outside
diameter dimension – i.e. larger or smaller than the unit or sensor can be used on.
Response: Enter a valid number.
ERR:Wall thk. range! Interpretation: You have entered an out-of-range value for the pipe wall thickness
dimension – accepted range is 0.04 to 3 inches (1 to 75 mm).
Response: Enter a valid number.
ERR:Lining thick. range! Interpretation: You have entered an out-of-range value for the lining thickness
dimension – acceptable range is 0 to 1 inch (0 to 25 mm).
Response: Enter a valid number.
ERR:Temperature range! Interpretation: You have entered an out-of-range value for the fluid temperature.
Accepted temperature range -4°F to +392°F (-20°C to +200°C).
Response: Enter a valid number.
ERR:Invalid Date or Time! Interpretation: The entered Date or Time is invalid, or when setting up ‘timed’ data
logging the Stop time is set earlier than the Start time.
Response: Enter a valid Date and Time.
ERR:Invalid Sensor or Mode Interpretation: The selected temperature is higher than the maximum allowed for
the sensor type.
Response: Change the temperature.
Mode: Err Type Interpretation: The selected sensors are invalid and the mode cannot be verified.
Response: Choose a mode that gives a non-zero separation distance.