CiDRA GVF-100 Gas Volume Fraction Monitoring System - Manual (Page 28)

Copyright © 2006 CiDRA Corporation Page 7-11
20639-01 Rev 03
It is helpful to have a second person available to help when installing
the cover assembly. When the sensor head is installed on a
horizontal pipe, the sensor cover should be installed such that the
transmitter cable connector socket is located within the 105° arcs
shown in the following figure. Do not install the cover with the
transmitter cable connector socket installed downward. (An electrical
pre-amplifier board is mounted on the inside of the cover.) The ability
to route the sensor band to sensor cover cable may dictate cover
orientation. The cable gland on the sensor head to transmitter cable
connector, when installed, should face away from the cover.
Figure 14 Orientation (Clocking) of Sensor Cover
If the sensor head is installed on a vertical pipe, the cable connector
should be located so it is facing downward.
7.6.1 Fiberglass Cover Installation
Remove the sensor cable access panel from the sensor upper cover
assembly.
Apply a coating of the P/N 52307-01 PTFE Pipe Sealant (acts as a
lubricant during installation and sealant once cured) to the cover
gaskets. Note: This sealant is not used with stainless steel covers.
Install the sensor upper cover assembly over the sensor assembly.
Install the lower sensor cover. Hold the halves in place with spring
clamps. Note: Ensure the sensor cover does not pinch the sensor
cable. Note: Ensure the sensor cable connector is accessible through
the sensor cable access panel. (Reposition cover or cable connector
if necessary.)
Care must be taken during installation of the sensor band and sensor
band cover to ensure the sensor band cable does not become
pinched between the cover halves. The problem may show up as a
sensor failure during sensor tests and operation of the meter.
Upper cover
assembly
Lower cover assembly
Transmitter cable
connector socket