4.5.2
Push-button calibration for uncovered and covered probes
Prerequisites
•
The level switch must be correctly mounted and wired.
•
The level of the solids material must be below the probe.
Procedure
1. Review the stages in the calibration procedure.
A
C
D
B
A. Capacitance of uncovered probe
B. Sensitivity
C. Switching-point
D. Capacitance of covered probe
2.
Ensure the solids material is not covering the probe.
3. Press and hold the
CAL
button for three seconds.
CAL
The LED is red and flashing when the calibration is started.
a) Wait approximately 10 seconds until the calibration is
completed.
b) The display then indicates the actual measured capacitance
and a
u
for the uncovered probe state.
4. Make a note of the actual measured capacitance displayed when the
probe is uncovered.
5. Make a note of the actual measured capacitance displayed when the
probe is covered.
For vertical mounting (rope version), the solids material must cover
the probe by 4 - 8 in. (10 - 20 cm).
October 2020
Quick Start Guide
Quick Start Guide
27
