Fluke 922 Manual do Utilizador

® PN 2683880 November 2006 Rev.1, 12/07 © 2006-2007 Fluke Corporation, All rights reserved. Printed in Taiwan. Product specifications are subject to

922 Users Manual 2 Safety Information and Symbols A WCaution identifies conditions and actions that may damage the Meter. A WWarning identifies condit

Airflow Meter Safety Information and Symbols 3 International symbols used on the Meter and in the manual are explained in Table 1. Table 1. In

922 Users Manual 4 Contacting Fluke To contact Fluke, use one of the following telephone numbers: USA: 1-888-99-FLUKE (1-888-993-5853) Canada: 1-800

Airflow Meter Pushbutton Functions 5 Pushbutton Functions Figure 1 and Table 2 explain the Meter’s pushbuttons. 1141312111092345678 eog02.eps Fi

922 Users Manual 6 Table 2. Pushbuttons Pushbutton Function A Power button. Press to turn the Meter on or off. Hold for 5 seconds to display Meter’s f

Airflow Meter Display 7 Display Figure 2 and Table 3 describe the display. 12 3567101284911 eog01a.eps Figure 2. Display

922 Users Manual 8 Table 3. Display Description A Shift key is in use and secondary menu functionality is engaged B Hold is engaged C Annunciators sh

Airflow Meter Using the Meter 9 Using the Meter Power To turn Meter power on or off, press O Meter power is provided by four AA batteries. To

922 Users Manual 10 Temperature Ambient temperature is displayed on the Meter as a reference. The temperature can be displayed in either °C or °F. See

Airflow Meter Saving Samples 11 intermittent readings, record maximum and minimum readings while you are away or when you cannot watch the Met

LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship for two years from the date of

922 Users Manual 12 3. Press G, P, V or F to exit calculate mode. If the memory is full (99 samples have been stored), more samples cannot be stored.

Airflow Meter Measuring Differential Pressure 13 eog05.eps Figure 3. Differential Pressure Measurement

922 Users Manual 14 Measuring Velocity The Meter uses standard ambient conditions (temperature =21.1 °C/70 °F, barometric pressure = 14.7 psia / 1013

Airflow Meter Measuring Velocity 15 eog03.eps Figure 4. Pitot Tube Connection

922 Users Manual 16 Measuring Flow 1. Press F. 2. The Meter requests the duct shape and size. The Meter stores the last duct shape and size that is

Airflow Meter The Setup Menu 17 Notes HOLD, SAVE, CALCULATE, SHIFT, MIN MAX, ZERO, and SETUP UNITS can be used when measuring pressure, veloci

922 Users Manual 18 3. Press I to store the change. The Meter beeps to signal that the change has been stored. With each press of I, the menu moves t

Airflow Meter Recall 19 3. Press I to clear all samples. The Meter beeps and the display shows 0 samples. 4. To exit (CLEAR) or (CLEAR ALL)

922 Users Manual 20 Cleaning Clean only with soap and water. Remove any residue afterwards. Periodically wipe the case with a damp cloth and mild dete

Airflow Meter Maintenance 21 eog04.eps Figure 5. Replacing the Batteries

i Table of Contents Title Page Introduction...1 Sa

922 Users Manual 22 Specifications Parameter Range Accuracy Resolution Units Displayed Air Pressure ± 4000 Pascal ± 16 in H2O ± 400 mm H2O ± 40 mba

Airflow Meter Specifications 23 Environmental Operating Temperature 0 °C to +50 °C Storage Temperature -40 °C to +60 °C Temperature Coeffici

922 Users Manual 24 Agency Approvals P Conforms to EU directives ; Conforms to Australian standards Replacement Parts Replacement Part Part

Airflow Meter Accessories and Optional Items 25 Accessories and Optional Items Description Item or Part Number Toolpak Meter Hanging Kit

922 Users Manual 26

922 Users Manual ii Measuring Differential Pressure ... 12 Measuring Velocity ...

iii List of Tables Table Title Page 1. International Symbols... 3 2. Pushb

922 Users Manual iv

v List of Figures Figure Title Page 1. 922 Airflow Meter ... 5 2. D

922 Users Manual vi

1 922 Introduction The Fluke 922 Airflow Meter (“the Meter”) is a handheld instrument that measures differential pressure and calculates air veloci