Reference 8-59
Test Pressure: A positive value indicating the level of air pressure used to inflate
the product under test. Test pressure is set by adjusting the air regulator on
the back of Qualitek mR. Test pressure can only be set if Qualitek mR has
supply air connected and the output port is blocked with a leak-tight cap.
This limitation can be overcome with an electronic regulator. See
Electronic Regulator
Test Va cu um: A negative value indicating the level of vacuum applied to the
product under test.
Timers: Qualitek mR uses microprocessor timers to establish time intervals for a
variety of test functions. Time values are set in the parameters screen to
control coupling time, fill time, stabilization time, and test time. Timers are
calibrated in seconds. See Parameters Screen
Units of Measure: Qualitek mR can display pressure, flow, and time in several
user-selectable measurement units. Changing units of measure if made
through the Setup Menu which is accessed from the initial Program Mode
menu.
USB Security key: A USB device that unlocks capabilities which may be
available for the tester. Normally this is used by Uson personnel.
User: For purposes of this guide, the user is the person who sets up and enters test
parameters into the Qualitek mR. It is the operator who handles the day-to-
day product testing with the Qualitek mR.
Vacuum E rror: A negative quantity indicating the magnitude of the vacuum.
Valves: Qualitek mR contains modular solenoid valves that direct the flow of air
through the measurement circuits. The number, type, and arrangement of
valves in a Qualitek mR tester is dependant on the model and configuration.
Ven t: After Qualitek mR completes a decay test, a valve can be activated to open
the product and Qualitek mR’s internal test circuit to atmosphere. The
action of releasing pressure to atmosphere is called vent. If vent is not
required (for instance, if you want to unplug product to vent pressure), set
Vent time to zero.
Zero and Span: A sometimes-used term for sensor calibration.
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