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FCO770 Users Guide Issue 1
TEST TIME
•
Sets the maximum time that the test is allowed to run for. Normally the test is
terminated when the ramp trigger level is reached, but if the component is faulty this
may not occur. Typically set to twice the normal time required to test a good part.
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.
TEST O/P A-H
•
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
•
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”.
•
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
•
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.
D
D
u
u
m
m
p
p
t
t
e
e
s
s
t
t
p
p
a
a
r
r
a
a
m
m
e
e
t
t
e
e
r
r
s
s
This is the same as a standard leak test except for the use of prefill. These parameters are
displayed for the dump test even if prefill is disabled in the Global Settings menu.
PRESSURE CORRECTION
•
Pressure correction is normally enabled to compensate for variations in prefill
pressure – this allows for a more sensitive test. This can be disabled to aid
commissioning or if it necessary to display the actual pressure rather than a
compensated value.
•
Options: No, Yes.
Summary of Contents for FCO770
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