822-1002-C01 datasheet(21/40 Pages) MAGNETROL

21 / 40 page

50-621 Kotron Sentinel Models 822, 832 and 842 RF Point Level Switches

2. If the PRLO point is to be calibrated, press ENT

to display the present value.

3. Use the UP

arrow key to scroll to the exact level of

the media, in any unit of measurement (inches, feet,

percentage, etc.), being consistent to use the same unit of

measurement throughout theprocedure.

4. Once the exact unit is reached on the display, press

ENT

to store the information in memory. The display

will read PRHI (probe high). Raise the process level to a

PRHI calibration point.

NOTE: If entering different PRLO/PRHI points for greater accuracy,

be sure that the new PRLO point is lower than the existing

PRLO point and the new PRHI point is higher than the exist-

ing PRHI point.

5. Press ENT

to display the present value. Scroll to the

exact level of the media and press ENT

to store the

information in memory. The display will read PRLO

once again.

6. Press the UP

arrow key to leave the CAL mode

and return to the RUN mode, MAGNETROL INTL

MMM.

Probe calibration is complete. Proceed to Section 2.4.3,

Program Path 4 — Multi-Point.

2.4.2.1 Probe Calibration Tips

If you mistakenly get into the wrong area of the program

(for instance, PRLO data when PRHI data was intended),

remember, pressing all the three tactile feedback keys

(ENT/UP/DOWN

arrows) simultaneously will

return you to the RUN mode.

After establishing the probe low point (and the unit times

out from the CAL mode to the RUN mode while raising

the level for the probe high point), DO NOT press

ENT

after returning to the CAL mode when PRLO

appears. Press the UP

arrow key to bypass PRLO and

obtain PRHI. This will avoid setting the PRLO point

where the PRHI point should be.

If you get lost, and the unit continually displays ERROR

messages (2LO or 2HI, etc.), do the following:

1. Return to the RUN mode by pressing the DOWN

arrow

(from PRLO) or the UP

arrow (from PRHI).

2. From the RUN mode, press the ENT

and the UP

arrow keys simultaneously (

) to enter the menu.

The display will read CNFG.

ENT

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