Ohmic instruments UPM-DT-1000PA, User Manual

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12
Symptom Possible Cause Solution
The measurement fluctuates. Unstable Environment
The meter is very sensitive
and is affected by minor air
drafts and/or vibrations.
Place the meter on a solid
surface and shield it from any
air drafts.
The measurement drifts over
a period of time.
The tank water has absorbed
too much air.
Replace the tank water with
fresh, room temperature
degassed water.
The conical target has
developed bubbles on its
surface. Wipe any bubbles from the
surface of the conical target,
including the bottom.
The transducer head has
developed bubbles on its
surface. Wipe any bubbles from the
surface of the transducer
head.
The meter will not zero.
- Degassed water has
absorbed too much air.
- Requires Calibration and/or
Repair.
- Refill with fresh degassed
water.
- Contact Ohmic Instruments
for Calibration and/or
Repair.
After zeroing, the
measurement continually
drifts with no transducer
power applied.
The meter does not respond
to the test weight and or
transducer power.
The Conical Target Assembly
and/or the Target Support
Tube is rubbing or binding
against its surrounding.
Verify the Conical Target
Assembly and its Support
Tube are correctly positioned.
Displayed Errors Description Possible Solution
Timeout Operation Timeout
Re-zero / re-tare the meter once the
environment is stable.
Over init. Range Load During Power On
Remove the conical target assembly
and cycle power.
Under init. range No Load During Power On
Disengage the slide lock on the back
of the unit (if equipped).
Err 8.3 Over Range
Remove any excess force on the
meter.
Err 8.4
Load Removed During
Measurement Replace load or transducer and
repeat the test.
------
Busy (tare, zero, printing,
waiting for a stable weight)
Wait until operation completes
If any error persists, contact Ohmic Instruments Sales or Service for repair
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