High-Pressure Modular Controller
Tasks
47
Mode
– Select Internal or External from this menu. To run an internal leak test,
the optional external isolation valve accessory must be installed. When internal is
selected, the test port is isolated and the DUT and hoses are not tested. If
external is selected, all connections, hoses, and DUTs connected are
pressurized. During the leak test, push the
Information
(i) icon to see more
detailed status. This same screen shows at the end of the leak test.
Run from Current Pressure
– Starts the leak test at the current pressure in the
system, ignoring the Setpoint pressure setting.
Switch Test
To test a pressure switch:
1. Go into the
SETUP
menu.
2. Connect the unit under test (DUT) to the switch test terminals on the rear of
the Product with the pressure switch terminals to the pressure switch
contacts (de-energized dry contacts). The polarity of the terminals does not
matter. Connect the test port of the Product to the input of the pressure
switch.
3. Select
Tasks>Switch Test
. The
Switch Test
menu is shown. Use the
touchscreen and keypad to enter the switch test values.
4. Configure the test:
Start
– Minimum Setpoint pressure
End
– Maximum Setpoint pressure for the test
Rate
– This is the slew rate to determine how quickly the pressure will
increase or decrease. For sensitive switches, Fluke Calibration recommends
a slower rate.
Direction
– Select whether to increase then decrease pressure (up and
down), or a one time upward test (single).
5. Touch
Run
to start the test. The task bar shows the progress of the test and
also the state of the switch (Open or Closed). The test is fully automated and
progress can be viewed at any time.
The Product changes the pressure over the specified range at the required
rate. When the switch changes state, the Product records the pressure. The
results of the switch test are shown on the display when the test completes.
