FCO770 Users Guide Issue 1
Page 51
EXTERNAL FAIL
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Allows an external signal, for example a pressure switch, to be monitored. An
External Fail result is given if the signal is not in the expected state at the end of the
test time.
•
Note that the input function must be defined in the i/o configuration menu.
•
Options:
o
NO:
External fail is not used for this test.
o
ON:
The input is expected to be active at the end of the test time.
o
OFF:
The input is expected to be inactive at the end of the test time.
o
CHANGE:
The input is checked at standby and is expected to change state before
the test time ends.
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PRESSURE UNITS
•
Choose the engineering units for the pressure display. See the specification table on
page 96 for available units.
REGULATOR 2
•
Selects the second internal regulator (if fitted), or an external regulator. Electrical or
pneumatic outputs may be programmed to select an external regulator.
•
Options:
o
NO
: regulator 1 is used for the test.
o
YES
: regulator 2 is used for the test
o
PREFILL
: not intended for use with this test type. Regulator 1 will be used.
o
FILL
: not intended for use with this test type. Regulator 2 will be used.
CHECK STANDBY PRESSURE
•
Disable or enable pressure tolerance checking in standby. This is normally enabled,
but may be disabled for vacuum tests with air saving, or jigging configurations where
the test pressure is not applied in standby.
•
Options: No, Yes
TEST PRESSURE
•
Set the nominal test pressure. This is used in conjunction with the tolerance setting to
ensure that the applied test pressure is within the test specification.
PR. TOLERANCE
•
Sets the pressure tolerance for fault indication. Set 100.0% to disable.
VENT TIME
•
The vent time should be set if an external vent valve is fitted to the system. The time
must be long enough to allow the pressure in the test item to decay to a safe level to
ensure that the test item is not unclamped while pressurised.
Summary of Contents for FCO770
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