Siemens OCM III, Instruction Manual, Page: 16 / 112

INSTALLING THE TRANSDUCER
INSTALLING THE TEMPERATURE SENSOR
Max cable run 183 m (600 ft) of
RG-62U or equivalent. Cable must
be run in a grounded metal conduit
with no other cabling (except
Temp. Sensor cable).
Ground shield at OCM-3 only.
Insulate shield at junctions to
prevent inadvertent grounding.
Basic Wiring – Temperature Sensor
Basic Wiring – Transducer
Maximum cable run 183 m (600 ft) of
Beldon 8760, 1 pair shielded/twisted,
18 AWG or equivalent.
Temperature sensor cable can be
run with the transducer cable in a
grounded metal conduit.
Ground shield at OCM-3 only.
In order to compensate for uniform
temperature change in the air
between the transducer and the flow
surface, the temperature sensor
must be connected to the OCM-3.
Hazardous voltage present on transducer terminals during operation.
Note: When using the XRS-5 transducer with the OCM-3, use the TS-2 external
temperature sensor. The internal temperature sensor in the XRS-5 cannot be used.
16 OCM III 7ML19985AB01