Uson sprint iq, Руководство пользователя

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Programming
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4.1.4 Flow Test
Introduction
A flow test continuously supplies air to a product under test and
measures the amount of air flowing through the product and
going to atmosphere. In a flow test, Sprint iQ uses at least one
mass flow sensor to measure the air flow, and a pressure
transducer to monitor the air pressure.
The flow test can be configured to measure air flow through a
product and to pass that product if air flow is between the
minimum and maximum limits set in the program. Flow tests are
often used to check for blocked passages in small tubing and
other low-flow devices.
Most parameters in a flow test are the same as a pressure decay
test with three exceptions. (1) A flow test has no stabilization
phase. (2) Instead of one reject setpoint, a flow test has both reject
minimum and reject maximum flow setpoints. (3) Pressure error
is checked only at the end of test time.
4.1.4.1 Flow Test Parameters
Parameters in a flow test-
• Test Pressure
• Pressure Error
• Couple Time (if external fixtures are used)
• Fill Time (only required on large products)
• Test Time
• Vent (0 or time)
• Max Flow (maximum flow)
• Min. Flow (minimum flow)