Panametrics Sentinel, User Manual, Page: 102 / 166

Chapter 6. Transducer Replacement
102 Sentinel™ User’s Manual
Note: To replace T11 transducers in a pressurized pipe, see “Replacing T11 Transducers in a Pressurized Pipe” on
page cvi .
The following equipment is required to complete the removal and re-installation of T11 transducers in a depressurized
pipe line:
• Torque wrench
• Spray lubricant
• Anti-seize lubricant
6.3.1 Removing the Old Transducer from a Depressurized Pipe
To remove the old transducer, complete the following steps:
1. Remove the cover from the T11 conduit box, disconnect the BNC connector from the transducer, and remove the
conduit box.
2. Remove the four bolts from the transducer sensor flange with a 9/16” socket wrench.
IMPORTANT: Inspect the bolts to verify that they are not damaged. If one or more bolts need to be replaced, use only
approved 3/8-16 UNC x 1.5” SAE class 8 bolts.
3. Remove the sensor flange from the transducer.
4. Remove the transducer from the holder.
WARNING!
Follow all applicable safety codes while performing the following procedure.
WARNING!
Make sure the power is disconnected before performing the following steps.
WARNING!
Make sure the process line is shut down before removing transducers according to this
procedure. Serious injury or death may occur if the transducers are removed from a live
process line.