2 crystal replacement instructions – INFICON UHV Bakeable Sensor User Manual
Page 37
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4 - 3
PN
07
4-
15
4N
UHV Bakeable Sensor Operating Manual
4.2 Crystal Replacement Instructions
Follow the steps below to replace the crystals.
NOTE: Review
section 4.1, General Precautions, on page 4-1
CAUTION
To preserve cleanliness and to maximize crystal
performance, perform all work in a clean room
environment.
1
Remove the crystal holder by releasing the clamping spring handle towards the
crystal side of the sensor.
2
Insert the tapered end of the crystal snatcher (PN 008-007) into the ceramic
retainer (see
(A)) and apply a small amount of pressure. This locks
the retainer to the snatcher and allows the retainer to be pulled straight out (see
(B)).
Figure 4-1 Using the crystal snatcher
3
Invert the crystal holder and the crystal will drop out.
4
Prior to installing the new crystal, review
section 4.1.1, Handle the Crystal with
5
Grasp the edge of the new crystal with clean plastic tweezers. Orient the crystal
so the patterned electrode is facing up. Gently insert the edge of the crystal
beneath one of the wire segments that protrude into the crystal cavity. Release
the crystal.
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