CiDRA Elevated Temperature Sensor Head - Manual (Page 9)

2.3.3 Sensor Installation
Slightly bend the alignment tabs on the sensor band alignment sheet
upward. These will serve to align the sensors during installation.
Wrap the sensor bands around the alignment sheet. Align the edge of
the sensor band with the alignment tabs on the alignment sheet.
IMPORTANT: The alignment tabs on the alignment sheet are not
symmetrical. Install the sensors on the side of the tab shown in
Figure 2 above.
Install the sensors so the cable exiting from under the sensor clamp
does not touch the alignment tabs (this may cause the sensor element
to be cut and cause a short).
Install the sensor such that their connectors are opposite the direction
of wires #9 & 10 on the alignment sheet
Orient the sensor band attachment bolts with the top of the pipe
(horizontal installation) so they will be directly under the cover
assembly.
Tighten the screw on each of the sensor bands to 20 – 22 in-lb
f
using
a torque wrench with a 9/32” socket or slotted screwdriver adapter.
Wait 10 minutes. Re-torque the band screws to 20-22 in-lb
f
.
If the sensors have not been previously numbered, label each of the
leads from the sensors with wire numbers. Apply the tag near the
connector end of the wire. Label the first sensor, with respect to flow
direction, with #1 tag; label the second sensor with tag #2, etc..
Figure 3 Installed Sensor Band
21020-01 Rev 01 Page 2-5