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2.3
PROCESS CONNECTIONS
!
CAUTION
2.3.1
Thermal Systems
Locate flexible connecting capillary tubing where it will not contact extremely hot or cold
surfaces. When it is necessary to fasten tubing to rigid supports, use staples or heavy wire.
Do not drive staples so tight that they collapse tubing.
If capillary tubing is too long, coil surplus at some convenient point. Wind surplus tubing in
coils not smaller than 24" (609.6 mm) in diameter.
Install the tube system bulb, Figure 3, in the process at the point where measurement is
required. For accurate measurement there should be good circulation of process fluid around
the bulb.
If a separable well is used, make certain the Thermospeed sleeve, Figure 4, is inserted
between the well and the bulb. Push the bulb completely to the bottom of the well. Avoid sharp
bends along the connecting capillary tubing.
Do not subject bulb to higher temperatures than maximum range of chart. if process requires
higher cleaning temperatures than maximum range, remove bulb before cleaning.
Plain Bulb, Flexible Extension with Union Connection and Well, Termination No. 25
Plain Bulb, Flexible Extension with Union Connection, Termination No. 31
Figure 3a. Mounting dimensions of Common Thermal Elements
When installing thermal systems or volumetric type pressure systems
never cut the flexible capillary tubing, and do not make bends smaller
than a 3 " (76 mm) radius.
76J Pneumatic Fulscope Recorder
INSTALLATION
9
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