822-1002-C01 datasheet(19/40 Pages) MAGNETROL

19 / 40 page

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

2.4

Calibration—Multi Point

2.4.1 Program Path 1 — Configuration

The SING (single point) program is for single point alarm

applications and allows for proper calibration without level

change. The MULT (multi-point) program is for all pump

(wide differential) control, multiple relay applications,

and single point applications where an adjustable set point

is needed.

NOTE: Specific order of the configuration modes must be followed for

proper calibration of the Sentinel Level Switch. It is imperative

that the user select CNFG for the first calibration procedure.

Within the CNFG mode, the single or multi-point operation

must be selected. This selection affects the balance of the

configuration procedures and will significantly affect the

performance of the level switch if the modes of operation are

not followed.

STEP 1: CNFG (Configuration)

1. From the RUN mode, press the ENT

and the UP

arrow keys simultaneously (

) to enter the menu. The

display will read CNFG. Configuration is the first mode in

configuring the Sentinel. (Refer to the NOTE above).

2. Press ENT

to confirm configuration selection and unit

will display COMM. COMM (Communications) refers to a

future RS-485 option of the Sentinel. Although selections

appear in the flowchart (screened area of diagram at left)

and in the software program, these features are not avail-

able at this time.

3. With COMM displayed, press the DOWN

arrow key to

display MODE.

STEP 2: MODE (Mode)

1. MODE refers to the selection of a single point (alarm only)

or multi-point application of the Sentinel. Press ENT

to display MULT.

2. Since multi-point use is desired, press ENT

to return to

the RUN mode.

For MULT (multi-point) selection, the display will read

**NOT READY**. Proceed to Section 2.4.2, Program

Path 3 — Probe Calibration.

NOTE: Although standard procedure is to calibrate the probe first

(eliminating the **NOT READY** message), relay parameters

can be set prior to calibrating the probe. This means full cali-

bration of all relays may be done indoors on a test bench. The

remaining PRLO/PRHI points can then be calibrated, after the

unit is installed.

ENT

RUN

CNFG

MULT

SING

MODE

COMM

TERM

ADDR

OFF

HOST

ENT

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