Knight Equipment INDUCTIVE PROBE Installation Manual

INSTRUCTION SHEET

OVERVIEW

When it comes to ac curate chemical concent ration c ontrol of wash
water, inductive probes are technologically more advanced than
conventional conductive probes. Inductive probes read chemical
concentration levels by casting a magnetic field from two charged
coils that are encapsulated in polypropylene. These magnetic coils
never come in direct contact with corrosive chemicals and hard
water minerals. As a result inductive probes provide consistently
accurate and reliable chemical concentration control without ever
needing to be serviced; unlike conductive probes that need
constant maintenance and probe replacem ent.

INDUCTIVE PROBE

INSTALLATION

(1) Shut off all power to the main controller.
(2) The probe should be mounted in the washer tank as shown in

the example in Figure 1 (this is a top view) with the hole
oriented vertically. Start by feeding the wire end through the
mounting hole from the inside of the tank. One rubber washer
should already be mounted on the threaded mounting stud.

(3) After the plastic probe body has been firmly secured to the

mounting hole with a rubber washer on each side of the tank,
feed the wire bundle through a strain relief on the bottom of the
main controller as shown (circled) in the example in Figure 2.

(4) With the wire bundle now routed up inside the main controller,

attach the four wires to the corresponding terminals for
inductive probe connection as shown in Figure 3. The wire

colors must match the color legend shown below the terminals.
(5) Turn power on to the main controller.
(6) A few seconds after power-up, the display window should

indicate that it has found the attached Inductive Probe and will

use the Inductive Probe readings for controlling chemical

concentration whenever Probe Mode is selected and the pump

activation signal is on.

Figure 1

Figure 2

Figure 3

CAUTION: Wear protective clothing and eyewear when dispensing chemicals or
other materials. Observe safety handling instructions (MSDS) of chemical mfrs.

CAUTION: To avoid severe or fatal shock, always disconnect main power when
servicing the unit.

CAUTION: When installing any equipment, ensure that all national and local
safety, electrical, and plumbing codes are met.

0900840 Rev: A (03/07)

DISCLAIMER

Knight LLC does not accept responsibility for the mishandling, misuse, or non-performance of the described items
when used for purposes other than those specified in the instructions. For hazardous materials information consult
label, MSDS, or Knight LLC. Knight products are not for use in potentially explosive environments. Any use of our
equipment in such an environment is at the risk of the user, Knight does not accept any liability in such
circumstances.

WARRANTY

All Knight controls and pump systems are warranted against defects in material and workmanship for a period of
ONE year. All electronic control boards have a TWO year warranty. Warranty applies only to the replacement or
repair of such parts when returned to factory with a Knight Return Authorization (KRA) number, freight prepaid, and
found to be defective upon factory authorized inspection. Bearings and pump seals or rubber and synthetic rubber
parts such as “O” rings, diaphragms, squeeze tubing, and gaskets are considered expendable and are not covered
under warranty. Warranty does not cover liability resulting from performance of this equipment nor the labor to
replace this equipment. Product abuse or misuse voids warranty.

FOOTNOTE

The information and specifications included in this publication were in effect at the time of approval for printing.
Knight, LLC reserves the right, however, to discontinue or change specifications or design at any time without notice
and without incurring any obligation whatsoever.

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0900840 Rev: A (03/07)

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