Operation; Measurement - PCE Health and Fitness PCE-HVAC 2 User Manual

5

Operation

5.1

Measurement

5.1.1 Pressure measurement
To take a pressure measurement, follow these steps:
1. Press "P/V/F" to get to the pressure mode ("PRESS"). In pressure mode, press "Unit
▼" to chance the measuring unit. You can switch between PSI, mbar, Pa, inH
mmH O.
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2. Connect a flexible tube to the "Input (+)" connector on the device and leave the "Ref (-
)" connector unconnected.
3. Make sure that there are the same environmental conditions at the open end of the
tube and the "Ref(-)" connector. Then press and hold "Hold/Zero" for 2 seconds to
zero the display.
4. Place the open end of the tube in the area to be measured.
5. The display now shows the differential pressure between the input zone (tube) and
the reference zone (meter) on the primary display. A positive value means that the
pressure in the input zone is higher than in the reference zone. The device can
measure a differential pressure of up to 5000 Pa.
© PCE Instruments
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