
4. Route the preamplifier cable to the location of the
P/N 33217 preamplifier through conduit, if
necessary. Unscrew and remove the preamplifier
cover. Pass the cable through the PG-9 connector.
5. Using the chart below, connect the wires from the
preamplifier cable to the preamplifier.
Note: If the cable must be cut, tin the wires
before connecting.
Terminal Connection Color
Temp. Comp.+ Red
Temp. Comp. - Black
TC GND Green
Preamp Power + 5V Orange
Preamp Power - 5V Blue
Temp. Comp. - Black
Temp. Comp. + Red
VpH White
COM Brown
TC GND Green
© 1999 LMI Milton Roy - All Rights Reserved
Printed in USA
Specifications su ject to change without notice.
FromTemp
CompCable
Cable
fromController
Fig. B
6. Connect the pH/ORP electrode BNC connector to
the mating BNC on the preamplifier .
If temperature compensation is to be used, remove
the white plastic dowel pin from the PG-7 connec
tor. Run the temperature compensation wires (red,
black and green) in through the connector and
connect to the three terminals of the electronic
module as in the chart above.