INFICON UHV Bakeable Sensor - Manual (Page 39)

4 - 5
PN
07
4-
15
4N
UHV Bakeable Sensor Operating Manual
4.3 UHV Bakeable Sensor Maintenance
4.3.1 Adjusting the Leaf Spring
UHV Bakeable Sensors have one leaf spring with three prongs located on the
ceramic retainer that provides an electrical connection to the crystal electrode.
Examine the prongs on the leaf spring positioned on the ceramic retainer. If they
are significantly lower than shown by
Figure 4-2 , they should be adjusted to an
angle of approximately 45 degrees.
NOTE: A leaf spring adjusted to 45 degrees will flatten slightly after being inserted
into and extracted from the crystal holder.
Figure 4-2 Ceramic retainer
To adjust the prongs on the leaf spring positioned on the ceramic retainer, touch
the end of the prong with a gloved finger, or grip the prong with Teflon tweezers,
and gently lift it upward. Be careful not to kink the prongs. An ideal bend has a
smooth, sweeping shape (see
Figure 4-3 ).
Figure 4-3 Leaf spring shape
45°
Avoid
Kinking
Leaf
Spring
Leaf Spring
45°