Controller Operation
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19
6. Press the New Setpoint button to display the Set-
point screen. You can set up to 30 setpoints for
each pressure test.
7. Enter the pressure for the setpoint in the Pressure
field.
8. In the Time field, enter the time for the setpoint to be
held or monitored before moving on to the next set-
point or ending the pressure test.
9. Select one of the following Setpoint Types from the
menu list:
•
Hold
- This maintains the setpoint pressure for
the duration entered in the Time field. Air pres-
sure is maintained on the pump.
•
Decay
- This builds pressure up to the setpoint
pressure before starting a pressure decay test.
The pressure will overshoot the setpoint during
buildup to ensure the decay starts at the actual
setpoint. The pressure decay will be measured
over the duration entered in the Time field.
Once the decay is started, air pressure is
removed from the pump.
The Decay Allowed field is the maximum pres-
sure decay allowed below the setpoint. An
alarmed is tripped if the actual decay exceeds
the entered value. The percent value will auto-
matically change with the amount entered, and
vice versa.
•
Interact
- This builds pressure up to the set-
point pressure and holds for interaction by the
operator. A popup window reminds the operator
that manual interaction is required for the test to
continue. Examples include actuating a valve or
checking for leaks.
The Interaction Type menu list includes two
popup window options: Visual Check and Man-
ual Operation.
10. In the Stabilize Time field, enter the duration for the
system to wait and “settle” at the setpoint pressure
before starting the actual test.
NOTE:
The Delete Setpoint button will delete the cur-
rent setpoint from the test.
F
IG
. 16 Setpoint Screen
F
IG
. 17 Decay Fields
F
IG
. 18 Interaction Fields
