Endress+Hauser SS2100i-2 - Page 53

SS2100i-2 TDLAS Gas Analyzer Operating Instructions
Endress+Hauser 53
9. Hold the wrench on the flange stable and parallel to the surface. Do not move.
10. Turn the ⅞ in wrench counterclockwise to loosen the pressure sensor until it can be removed.
Replace the pressure sensor
1. Remove excess seal tape from the flange opening and threads and check threads for galling.
Fig 40. Removing excess seal tape from flange.
CAUTION
Threads showing signs of galling indicate a possible leak.
 Refer to Service → to arrange to return for repair.
2. Remove the new pressure sensor from the packaging. Retain the black connector cap on the sensor. Do not
remove the cap.
3. Wrap stainless steel PTFE tape around the threads at the top of the pressure sensor, beginning from the base of
the threads to the top, approximately three times taking care to avoid covering the top opening.
Fig 41. Replacing the seal tape.
4. Insert the new pressure sensor into the threaded flange keeping the sensor parallel to the surface for proper
fitting.
5. Hand-tighten the pressure sensor turning it counter clockwise into the flange until no longer moving freely.