INFICON Cool Drawer Single Sensor - Manual (Page 33)

2 - 7
PN
07
4-
60
9-
P1
A
Cool Drawer Single and Dual Sensors Operating Manual
2.3 Bending Tubes
CAUTION
Read this entire section before attempting to bend the
tubes. Incorrect tube bending that damages the tubes
beyond repair voids the warranty.
If it is necessary to bend the tubes to clear obstacles inside the chamber or to bring
the head into a proper mounting location, observe the following precautions:

Support the tubes where the bends will be placed to avoid a tube being
collapsed or pinched. See
Figure 2-3 .
 If the cooling tube is collapsed, water flow will be restricted. The sensor will
not have sufficient cooling.
 If the air tube is collapsed, air pressure maybe restricted. The shutter will
not operate correctly.
 An electrical tube that is collapsed or pinched may cause an electrical short.
 Do not make sharp bends. Allow a minimum of 9.5 mm (3/8 in.) bend radius.
 Bends must be farther than 2.54 cm (1 in.) away from the braze joint at the
electrical connector. Bends that are closer will permanently short out the
electrical connection or damage the braze joint and void the warranty.
The 3.175 mm (1/8 in.) tubes are flexible enough to bend, but they are not designed
for repeat bending. Plan bends wisely. Before the actual tube bending, verify the
bend position again to avoid readjusting. If in doubt, contact INFICON support,
refer to
section 1.3, How to Contact INFICON, on page 1-3 .
Figure 2-3 Correctly bending tubes
2.54 cm (1 in.)
Minimum to
Start of bend
R.375
Minimum
R.375
Minimum
2.54 cm (1 in.)
Minimum to
Start of bend
R.375
Minimum
Do Not Pinch Tube Do Not Twist Tube Do Not Make
Small Radius Bends
Do Not Make
Acute Angle Bends