Installation Manual

ValveWatch II Hardware Installation and Setup Manual
Page 29 of 34
CRANE
Nuclear
8.6 Strain Sensor Wiring
Route the sensor cable in site approved cable tray or tubing to the ValveWatch Local Data
Acquisition Unit enclosure. Route the cable through an appropriate cable gland and secure.
Connect the four strain sensor conductors and cable shield conductor as required on J-51008ExS.
Yellow - SIG +
Green - SIG –
Brown - EXC +
White - EXC -
Shield - Ground terminal
8.7 Strain Sensor Labeling
Once the strain sensor and cabling are installed and secured, add labeling per plant documentation
for interconnection and maintenance.
9 Static Pressure Sensor Installation
Another key parameter of ValveWatch is to monitor the actuator hydraulic/air supply driving the
valve actuator. This parameter can serve as a trigger for the data acquisition circuits and more
importantly, to trend input pressures driving the actuator. The sensor is selected as a simple
device and gives a millivolt/volt output relative to the pressures applied to the sensor. This sensor
connects directly into the Strain/AC Module.
The static pressure sensor is typically installed on the inlet of the actuator. It is installed thru a Tee
connector. The steps below outline the sensor installation.
Caution:
Please follow all installation procedures and J-51008ExS when connecting the static pressure
sensor to its associated apparatus.