Page 96
Timers in pressure decay tests
Coupling Timer
Coupling time is used as a delay causing Sprint LC to wait for a preset
period after start is activated and before Sprint LC supplies air to the part
to be tested. Coupling time can be used in either a manual or automated
operation.
If coupling valves are used, the valves turn on at the start of the test and
turn off when the test is finished.
Coupling time is generally the period in which the pneumatic or
mechanical fixtures are applied to seal the product from atmosphere. Often
used in open-ended products such as tubing, catheters, and containers.
If external fixtures are not used, set the coupling for zero time (off). Refer
to page 42 for more information.
FIGURE 44
Pressure Decay
Timers and Valves
Fill Stabilize Test Dump
Zero
Couple