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2271A
Operators Manual
32
To prevent oils, grease, solvents, and water that could be present in a UUT from
contaminating the Product, a Contamination Prevention System (CPS) is
available for use with the Product. The CPS sits on a bench next to the product
and inside of a test stand that provides a sturdy platform to test pressure
instruments and devices. The CPS connects directly to a single Test port (the
other test port must be capped with a hand-tight cap). For more information and
instructions on how to install and service the CPS. See the Contamination
Prevention Accessory (CPS) section.
Note
Excessive leaks in the test volume affect control stability and
possibly cause measurement errors in the UUT. Use the Leak Test
task to check for leaks in the system prior to running a test.
WCaution
To prevent damage to the Product, when the Product is
connected to a system with liquid contaminants, take proper
precautions to purge the system and test line. The automated
purge task helps purge the liquid from the UUT. Not doing so
can cause Product contamination and result in a need for non-
warranty service.
Note
Minimize the length of the test connection tubing to enhance control
performance and reduce pressure setting time.
The Product pressure control will not operate properly if there are
excessive leaks in the test system. The maximum acceptable leak
rate for optimal automated pressure control operation and to ensure
in tolerance measurements with default pressure control parameters
is
±
0.5 % of set pressure/minute. In DYNAMIC CONTROL mode, to
handle higher test system leak rates, ready tolerance can be
increased from the user interface.
HC20
The HC20 test port has an M20X1.5 female thread and an O-ring inside. It is
quick and easy to connect UUTs which have M20 X 1.5 male threads. The M20
test ports have many varied adapters, which are used to connect different UUTs
with other male threads, such as NPT or BSP M14 X 1.5. These adapters seal on
an O-ring and thus do not require PTFE tape. See Figure 5.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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