User's Manual

15
2.OO installation (continued)
2.23 Basic Conductivity Probe Wiring
Although the basic conductivity probe wiring is pre-wired to
the controller, you must make the connection to the probe
installed on the washer.
1) Route the probe wires to the conductivity probe location
and cut to fit if required.
2) Strip the wire ends and crimp on the ring terminals
provided.
3) Connect the ring terminals to each of the probe
connections, sandwiching each ring terminal onto the
probe between the nuts and washers provided (see
diagram at right). Ensure that connections are tight and
secure.
2.24 Optional Temperature-Compensated
Conductivity Probe Wiring
In addition to the two wires on the basic conductivity
probe, the optional temperature-compensated conductivity
probe has two wires connected to a thermistor. This
thermistor enables more accurate conductivity readings
and allows the wash temperature to be monitored to
ensure optimal cleaning results.
To install the optional temperature-compensated
conductivity probe, follow these steps:
1) Disconnect all power to the unit.
2) Units that come with this option will be pre-wired to the
DMx Control Board with a 4-conductor cable instead of
the standard 2-wire setup (see wiring diagram on page
14). The 4-conductor cable is routed from the board
through the bottom of the DMx housing. Wire colors on
the 4-conductor cable are as shown below:
RedRed - Conductivity Probe
BlackBlack - Conductivity Probe
GreenGreen - Tank Temperature Sensor
WhiteWhite - Tank Temperature Sensor
3) Route the 4-conductor cable to the conductivity probe
location on the dish machine and cut to fit if required.
4) Connect the red and black wires on the cable to the
threaded terminals on the temperature-compensated
conductivity probe assembly using the crimp-on ring
terminals included in the kit. Sandwich each ring terminal
onto the probe between the nuts and washers provided
(see diagram). Ensure that connections are tight and
secure.
5) Crimp the two smaller spade connectors included in
the kit to the two thermistor wires on the temperature-
compensated probe, and the two larger connectors to
the green and white wires of the 4-conductor cable.
6) Connect the spade connectors (polarity is not important)
on the thermistor to the green and white wires.
WARNING: Electrical installation should be
completed by a qualified electrician. All local and
national electrical regulations are to be observed.
Conductivity
Probe Wires
Dish Tank Wall
Dish Tank Wall
Temperature
Sensor
Wires
Ring Terminals
Ring Terminals
Spade Connectors
Conductivity
Probe Wires