822-1000-C00 Datasheet, PDF (3/8 Pages) Magnetrol International, Inc. – Kotron® Sentinel Models 822, 832 and 842 RF Point Level Switches

TYPICAL APPLICATION
The following sump application displays the
extraordinary power and simplified calibration
of the Kotron Sentinel with MagneCal. To better
understand how this calibration is achieved,
consider the approach in two steps:
Probe can be calibrated
in one level change and
level movement as little
as 2% of tank height
High
level
alarm
Pump
#1
Pump
#2
Low
level
alarm
Step 1
Probe calibration
All RF Capacitance devices must be calibrated in the
process vessel. To calibrate, the process level must be
varied to achieve a capacitance change.
With MagneCal, the probe is calibrated by establishing
only two reference points and storing the data in the
microprocessor, via the 4-digit LED and 3-button keypad.
With conventional electronics, the level would need to be
varied multiple times.
Step 2
Relay configuration
The relays are now configured with no further level
change required.
The Sentinel draws upon the reference data stored during
the probe calibration.
The relay control points are easily entered via the same
4-digit LED and 3-button keypad. All relays can be cali-
brated and recalibrated without further level change.
Relays can be set up for lead/lag operation to enable
even pump wear.
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