Furness controls FCO770, Руководство пользователя

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Page 50 FCO770 Users Guide Issue 1
PREFILL TIME
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Only used with auto prefill and only displayed if auto prefill is used.
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This is a limit that should be set to the maximum allowable time to prefill. Prefill will
end when the prefill pressure is reached or when the prefill time expires if the
pressure is not reached. Set to zero to disable the time limit.
FILL TIME
•
Sets the time that the test pressure is applied for before the fill valve is closed and the
stabilisation timer is started. This time should be sufficient to allow the component to
be filled to the required pressure. If the pressure is out of tolerance at the end of the
fill time then the test ended immediately with a pressure gross result and a pressure
result value of zero.
TEST TIME
•
Sets the time that the pressure is allowed to leak from the test item after the fill
pressure has been removed. The pressure is compared to the fail levels at the end of
this time (unless the End On Fail option is enabled).
VENT TIME
•
Set the required vent time to allow the test item to vent through an external vent
valve. This should be set long enough to ensure that the test item is not unclamped
while pressurised.
TEST O/P A-H
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For each of up to eight outputs, define when the output is active.
•
Options:
o
OFF : The output is not activated for this test.
o
ON : The output is active for the whole of the test
o
STANDBY : The output is only active whilst the test is selected but has not been
started. The output is deactivated when the test is started.
o
TEST : The output is only active once the test is started
FEEDBACK A-H
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Define which feedback inputs are required before the test is allowed to run. The
feedback signals will typically be used to indicate correct positioning of the jig.
•
Each of up to eight possible inputs may be selected on (1) or off (0), e.g. to wait for
inputs A and C the setting will be “10100000”.
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Feedback is checked after the test outputs A-H have been activated, but before the
vent output.
•
Note that the feedback inputs must be configured in the I/O Configuration menu.
FEEDBACK TIMEOUT
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The default feedback timeout is set to 0.0 which disables the timeout function. The
instrument will display “Awaiting Feedback” until the correct feedback is applied or
the test is reset.
•
When the feedback inputs are not used for jigging they may be used to check signals
from test components. If the correct feedback is not supplied within the feedback
timeout period then the test ends with a FEEDBACK FAIL result.