822-1002-C01 Datasheet, PDF (20/40 Pages) Magnetrol International, Inc. – Kotron® Sentinel Models 822, 832 and 842

RUN
ENT
REVW
ENT
CAL
2.4.2 Program Path 3 — Probe Calibration
PRHI
ENT
ENT
NOTES:
1. The media level must be moved to accomplish this procedure.
The PRLO and PRHI points may be entered in any order; they
can easily be changed in the future when the process level is
at a much higher or lower point.
2. The unit will automatically time out and revert to the RUN mode
after 60 seconds without a keystroke; any information already
entered remains in memory. To enter any remaining data, sim-
ply re-enter the Probe Calibration section.
XXXX
3. A minimum level change of 2% or 5pF, whichever is greater, of
tank height will yield a valid calibration. However, a greater
level change yields better accuracy.
ENT
ENT
PRLO
XXXX
PRHI
ENT
ENT
XXXX
ENT
ENT
PRLO
XXXX
STEP 1: REVW (Review)
This menu allows the review of any previously stored
PRLO/PRHI points. If this is the first time calibration is
performed, proceed to Step 2.
1. To enter this menu from the RUN mode, press the
UP and DOWN arrow keys simultaneously.
( ) The display will read REVW (review).
2. Press ENT ^ENT to display PRLO (probe low).
3. Press ENT ^ENT to display the previously stored
PRLO point.
4. Press ENT ^ENT to display PRHI.
5. Press ENT ^ENT to display the previously stored
PRHI point.
6. Press ENT ^ENT to display PRLO.
7. Press the DOWN arrow to return to the main path.
The display will read CAL.
NOTE: If re-entering new PRLO/PRHI points for better accuracy, be
sure that the new PRLO point is lower than the existing
PRLO point and the new PRHI point is higher than the existing
PRHI point.
STEP 2: CAL (Calibrate)
This menu allows the calibration of the Probe.
Caution: This is the most critical section of the calibration proce-
dure. Before pressing ENT ^ENT to enter data into the PRLO
or PRHI areas, be sure it is the proper area needed at that
point. If an improper area is entered, pressing all three but-
tons simultaneously will return you to the RUN mode.
1. To enter this menu, press ENT ^ENT . The display will
read PRLO (probe low).
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50-621 Kotron Sentinel Models 822, 832 and 842 RF Point Level Switches