Zaxis Isaac PD - Page 48

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Zaxis Inc. LLC
801.264.1000
2442 South 2570 West
West Valley City, UT 84119
E
Event — The pressure change that signals the change in the device under tests condi-
tion. This trigger is used to end the test and compare the pressure reading to the limit
settings for pass/fail status.
F
Fail Light — The Isaac’s red indicator with an X-mark. The fail light turns on whenever
a test exceeds established parameters.
Firmware — The set of instructions stored in programmable read-only memory (Flash)
that controls Isaac’s operation. Firmware cannot be altered by the customer.
Firmware Version (How to nd) — The version of rmware running Isaac is dis-
played on the ‘About’ screen.
Fixturing — A xture is a device connected externally to the Isaac. Fixtures can be
mechanical, electrical, pneumatic, or combinations of all. Typical xtures are pneumatic
clamps that seal products during a pressure decay or ow test. The Isaac can supply
air from the coupling port to operate pneumatic xtures. Customers must specify at the
time of order whether they want coupling pressure to be line or test pressure. Many
xturing options are possible.
Flow — The amount of air passing through an object measured in cubic centimeters or
liters per time period (second, minute or hour) at a given pressure.
Flow Control — The Isaac has a built-in ow control to provide a slow pressure in-
crease (ramp up) needed for burst and crack testing. Users can precisely set the ow
control for the exact pressure build-up required for the product to be tested. After the
ow control is set for a particular product, further adjustment of the needle valve is
unnecessary.
Flow Standard — (1) A measuring instrument or certied restrictor that can be con-
nected to the Isaac as part of a ow calibration. The ow standard must have adequate
accuracy, stability, and repeatability needed to calibrate the Isaac. The ow standard
must have current calibration documentation if the customer requires accuracy trace-
ability. (2) A calibrated device to challenge the tester on an as needed basis. This de-
vice is calibrated and traceable. For example, a daily verication can be done to ensure
the tester will still nd the required ow value.