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Fluke 922 - page 1
® PN 2683880 November 2006 Rev.1, 12/07 © 2006-2007 Fluke Corporation, All r ights reserved. Printe d in Taiwan. Product specif ications ar e subject to change without notice. All produc t names are trademarks of thei r respective c ompanies. 922 Airflow Meter Users Manual ...
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Fluke 922 - page 2
LIMITED WARRANTY AND LIMITATION OF LIABILITY This Fluke product will be free from defects in material and workmanship f or two years from the date of purchase. This warranty does not cover fuses, disposabl e batteries, or damage from accident, neglect, misuse, alteration, contam ination, or abnormal condi- tions of operation or handling. Resellers ...
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Fluke 922 - page 3
i Table of Contents Title Page Introduction..................................................................................................1 Safety Informati on and Sy mbols..................................................................2 Contacting Fluke .........................................................................................4 ...
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922 Users Manual ii Measuring Different ial Pre ssure ................................................................. 12 Measuring Ve locity ..................................................................................... 14 Velocity Me asurem ent ............................................................................ 14 Measuring Flow ...
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iii List of Tables Table Title Page 1. International Symbol s ........................................................................... 3 2. Pushbu ttons ......................................................................................... 6 3. Display De scription .............................................................................. ...
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922 Users Manual iv ...
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v List of Figures Figure Title Page 1. 922 Airflo w Meter ................................................................................. 5 2. Display ................................................................................................. 7 3. Differential Pre ssure Meas urement ...................................................... 13 ...
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Fluke 922 - page 8
922 Users Manual vi ...
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Fluke 922 - page 9
1 922 Introduction The Fluke 922 Airflow Meter (“the Meter”) is a handheld instrument that measures differential pressure and calculat es air velocity and air flo w. The Meter ships with the following items: • Holster • Carrying case • Tubing and tubing strap • Four AA Batteries (installed) • Users Manual • Wrist Strap ...
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Fluke 922 - page 10
922 Users Manual 2 Safety Information and Symbols A W Caution identifies co nditions and actions that may damage the Meter. A W Warning identifies conditions and actions t hat pose hazard(s) to the user. XW Warning To avoid injury, or damage to the Me ter, follow these safety guidelines: • Read the entire Users Manual before using the Meter. • ...
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Fluke 922 - page 11
Airflow Meter Safety Information and Symbols 3 International symbols used on the Meter and in the manual are explained in Table 1. Table 1. International Symb ols Symbol Descriptio n Symbol Description W Risk of danger. Imp ortant information. Refer to manual. v= Recycling information M Battery ; Conforms to Aust ralian stan dards P Conforms to EU ...
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Fluke 922 - page 12
922 Users Manual 4 Contacting Fluke To contact Fluke, use one of the following telephone numbers: USA: 1-888-99-FLUKE (1-888-993-585 3) Canada: 1-800-36-FLUKE (1-800-363-58 53) Europe: +31 402-675-200 Japan: +81-3-3434-0181 Singapore: +65-738-5655 Anywhere in the world: +1-425-446-5500 Or visit Fluke’s Web site at: www.fluke.com . Register the Me ...
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Fluke 922 - page 13
Airflow Meter Pushbutton Functions 5 Pushbutton Functions Figure 1 and Table 2 explain the Meter’s pushbuttons. 1 14 13 12 11 10 9 2 3 4 5 6 7 8 eog02.eps Figure 1. 922 Airflow Meter ...
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Fluke 922 - page 14
922 Users Manual 6 Table 2. Pushbutto ns Pushbutton Functi on A Power button. Press to turn th e Meter on or off. Hold for 5 seconds to display Meter’s firmware versio n. B Activates velocity mode. See “Meas uring Velocity”. C Turns the backl ight on an d off. D Activates flow mode. Se e “Measuring Flow”. E Calculates average of stored va ...
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Airflow Meter Display 7 Display Figure 2 and Table 3 describe the disp lay. 12 3 5 6 7 10 12 8 4 9 11 eog01a.eps Figure 2. Display ...
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922 Users Manual 8 Table 3. Display Description A Shift key is in use and secondary menu functionality is engaged B Hold is en gaged C Annunciators showing that sample me mory is being accessed and t he number of samples D Indicates that a stored sample ( or all samples) is about to be deleted f rom memory E Units of pressure, velocity, and flow F ...
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Fluke 922 - page 17
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 replace the batteries, see “Maintenance”. Measurement Units The Meter supports both Metric and US measurement units. Select the desired measurement type using the Set up menu. See “The Setup Menu”. ...
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Fluke 922 - page 18
922 Users Manual 10 Temperature Ambient temperature is displayed on the Mete r as a reference. The temperature can be displayed in either ° C or ° F. See "The Setup Me nu". Secondary Menu Modes Use A with other select pushbuttons to shift to secondary me nu modes and functions: • Press A and then H to access the Clear functions. See ? ...
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Fluke 922 - page 19
Airflow Meter Saving Samples 11 intermittent readings, record maximum and mi nimum readings while you are away or wh en you cannot watch the Meter. To use Min Max mode, press M . The maximum reading appears first. Each subsequent press of M steps through the minimum, average, and live readings, and back to the maximum reading. To exit Min Max mode, ...
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Fluke 922 - page 20
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 can not be stored. If the user attempts to store another sample, the Meter flashes " Full " and does not save new readings. Measuring Differential Pressure To measure differential pressure , do the followin ...
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Fluke 922 - page 21
Airflow Meter Measuring Differential Pressure 13 eog05.eps Figure 3. Differential Pressure Measurem ent ...
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922 Users Manual 14 Measuring Velocity The Meter uses standard ambient conditions (temperature =21.1 ° C/70 ° F, barometric pressure = 14.7 psia / 1013 mbar), to approximate actual velocity and flow. Velocity Measurement To measure velocity, do the following: 1. Press V to enter Velocity mode. 2. Connect the hoses to the pito t tube and to the Me ...
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Airflow Meter Measuring Velocity 15 eog03.eps Figure 4. Pitot Tube C onnection ...
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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 entered. If the duct is different than the stored version, press D or E to find the proper duct type for the measurement (rectangular or round). 3. Press I to select the duct type. 4. If the duct is re ...
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Fluke 922 - page 25
Airflow Meter The Setup Menu 17 Notes HOLD, SAVE, CALCULATE, SHIFT, MIN MAX, ZERO, and SE TUP UNITS can be used when measuring pressure, velocity and flow. If P or V is pressed before pre ssing I for the final time, the Meter will escape the flow setup process and will not save any of the selections made or values entered. The Setup Menu Use the Se ...
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Fluke 922 - page 26
922 Users Manual 18 3. Press I to store the change. The Meter beep s to signal that the change has been stored. With each press of I , the menu moves to the next parameter. To exit the Setup menu without changing s ubsequent parameters, press P , V , or F . Clearing Sample Data The Meter stores data that per iodically will need to be cleared. Indiv ...
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Fluke 922 - page 27
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) without deleting samples, press P , V , or F before pressing I Recall 1. Press either P , V , or F to recall samples for that mode. 2. Press A . 3. Press I (RECALL) to recall samples. Use D and E to locate ...
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Fluke 922 - page 28
922 Users Manual 20 Cleaning Clean only with soap and water. Remove any residue afterwards. Periodically wip e the case with a damp cloth and mild deterge nt. Do not use abrasives or solvents. Replacing the Batteries When the low battery symbol appears ( B ) the meter will not save samples and “bAtt” appears on the display when I is pressed. Th ...
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Fluke 922 - page 29
Airflow Meter Maintenance 21 eog04.eps Figure 5. Replacing the Batteries ...
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Fluke 922 - page 30
922 Users Manual 22 Specifications Parameter Rang e Accuracy Resolution Units Displayed Air Pressure ± 4000 Pascal ± 16 in H 2 O ± 400 mm H 2 O ± 40 mbar ± 0.6 PSI ±1% + 1 Pascal ±1% + 0.01 in H 2 O ±1% + 0.1 mm H 2 O ±1% + 0.01 mbar ±1% + 0.0001 PSI 1 Pascal 0.001 in H 2 O 0.1 mm H 2 O 0.01 mba r 0.0001 PSI Pa in H 2 O mm H 2 O mb PSI Ai ...
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Fluke 922 - page 31
Airflow Meter Specifications 23 Environment al Operating Te mperature 0 ° C to +5 0 ° C Storage Temperature -40 ° C to +60 ° C Temperature Coefficient 0.025 X (specified accuracy) / ° C (< 18 ° C or > 28 ° C) Relative Humidity: Non condensi ng (< 10 ° C) 90 % RH (10 ° C to 30 ° C) 75 % RH (30 ° C to 40 ° C) 45 % RH (40 ° C to ...
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Fluke 922 - page 32
922 Users Manual 24 Agency Approvals P Conforms to EU directives ; Conforms to Australian standards Replacement Parts Replacement Part Part Number Battery 1.5 V Alkaline Size AA (4) NEDA 15A, IE CLR6 650181 Holster 2729807 Wrist Strap 2729793 Hoses, 1 black and 1 yellow w/test lead strap 2766087 Battery Door 2729818 Battery Door Screw 2729829 Hard ...
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Fluke 922 - page 33
Airflow Meter Accessories and Optional Items 25 Accessories and Optional Items Description Item or Part Number Toolpak Mete r Hanging Kit Includes: Magnetic Str ip, 2 Straps (9 inch and 12 inch), 2 Latch Tabs TPak Fluke 922 Kit Includes: Fluke 922 Airflow Meter, 1 2 inch pitot tu be, TPak Magneti c Strip, TPak Strap, 9 i nches, TPak Latc h Tab, Fou ...
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Fluke 922 - page 34
922 Users Manual 26 ...
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