INFICON Front Load Single Sensor User Manual
Page 54
2 - 8
PN
07
4-
15
6N
Front Load Single and Dual Sensors Operating Manual
4
Form, measure, and mark the sensor tubes (see
).
NOTE: Use the Tube Bender Kit, PN 750-037-G1, provided with all
non-welded sensors, to form the tubes.
CAUTION
Do not form the sensor tubes with a bend radius
less than 8 mm (0.315 in.) from the inside of the bend or
9.5 mm (0.375 in.) from the center line of the tubes.
Bends must be farther than 20 mm (0.79 in.) away from
the braze joints on the tubes.
Do not use the sensor body as a leverage point. This may
result in a failure of the braze joints on the tubes.
5
Build the sensor/feedthrough assembly.
6
Remove the sensor and the feedthrough.
7
Cut the water cooling tubes and air tubes to the proper length. Verify that they
are clear of metal particles by blowing compressed air through the tubing.
8
Connect the water cooling tubes and air tubes directly to the feedthrough,
or use vacuum rated couplings.
Vacuum rated connectors, such as Swagelok® VCR® or VCO®, are
recommended for use between the sensor and the feedthrough to speed
maintenance. If brazing adapters are to be used, attach them to the sensor
water-cooling tubes prior to connection to the feedthrough. Make
connections as follows:
CAUTION
To prevent damage to the feedthrough or sensor
during brazing, ensure that at least 2.54 cm (1 in.) of
water tube remains between the sensor and the flame.
Clean the water tube and adapter surfaces with solvent, if necessary.
Apply brazing flux to surfaces being joined.
Braze the connections using a flame temperature appropriate for
the brazing material being used.