Table 5-2: During Power-up or Push-button Calibration
Display
LED
Description
Possible causes and
solutions
UR
Flashing red
Under Range
Actual measured
capacitance is lower
than 3 pF.
Calibration is not
possible.
Probe is defective or
the probe is
incorrectly wired.
The signal output
relay is de-energized.
OR
Flashing red
Over Range.
Actual measured
capacitance is higher
than 400 pF
(sensitivity setting ≥ 2
pF) or 100 pF
(sensitivity setting ≤ 1
pF).
Calibration is not
possible.
A long rope version in
an empty silo may
exceed 100 pF
capacitance. Change
Sensitivity setting to
2 pF if DK of the
material is high
enough.
Probe may be
covered with
material. Ensure that
the probe is
uncovered.
The probe may be
faulty or incorrectly
wired.
G.ON
Flashing red
CAL
button pressed
with Manual
calibration set to
ON
.
Starting a calibration
using the push
button is not
possible.
Set Manual
calibration to
OFF
when the push
button is to be used
for starting a
calibration.
Quick Start Guide
October 2020
40
Quick Start Guide
