Fluke 922 User's Manual
Contents
1. IECLR6 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 Carrying Case 2774694 Users Manual 2683880 Users Manual on CD 2766430 24 Airflow Meter Accessories and Optional Items Accessories and Optional Items Description Item or Part Number Toolpak Meter Hanging Kit TPak Includes Magnetic Strip 2 Straps 9 inch and 12 inch 2 Latch Tabs Fluke 922 Kit Includes Fluke 922 Airflow Meter 12 inch pitot tube TPak Magnetic Strip Fluke 922 Kit TPak Strap 9 inches TPak Latch Tab Four AA Batteries 1 5 V Alkaline Users Manual Large Carrying Case 25 922 Users Manual 262. and Symbols International symbols used on the Meter and in the manual are explained in Table 1 Table 1 International Symbols Symbol Description Symbol Description Risk of danger Important o As e A information Refer fo manual Yaw a Recycling information Conforms to Australian standards Battery z e Do not dispose of this product as unsorted municipal waste Contact Fluke or a qualified recycler for disposal Dx CE Conforms to EU directives 922 Users Manual Contacting Fluke To contact Fluke use one of the following telephone numbers USA 1 888 99 FLUKE 1 888 993 5853 Canada 1 800 36 FLUKE 1 800 363 5853 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 Meter at http register fluke com Airflow Meter Pushbutton Functions Pushbutton Functions Figure 1 and Table 2 explain the Meter s pushbuttons Pressure VELOCITY CLEAR RECALL CLEAR ALL I CALC row SAVE l o e MIN MAX al SETUP UNITS tS Figure 1 922 Airflow Meter eog02 eps 922 Users Manual Table 2 Pushbuttons Pushbutton Function Power button Press to turn the Meter on or off Hold for 5 seconds to display Meter s firmware version Activates velocity mode See Measuring Velocity Turns the back
3. or is to exit the Recall menu Maintenance This section provides basic maintenance information including battery replacement instructions A Caution Do not attempt to repair or service the Meter unless qualified to do so and have the relevant calibration performance test and service information 19 922 Users Manual Cleaning Clean only with soap and water Remove any residue afterwards Periodically wipe the case with a damp cloth and mild detergent Do not use abrasives or solvents Replacing the Batteries When the low battery symbol appears 4 the meter will not save samples and bAtt appears on the display when es is pressed The Meter uses four AA batteries supplied To replace the batteries do the following see Figure 5 1 Turn off the Meter 2 Remove the holster 3 Place the Meter face down on a nonabrasive surface and loosen the battery door screw with a Phillips screwdriver 4 Lift the battery access door away from the Meter 5 Replace the batteries as shown in Figure 5 Observe the battery polarity shown in the battery compartment 6 Secure the battery access door back in position with the screw 7 Reinstall the Holster 20 Airflow Meter Maintenance eog04 eps Figure 5 Replacing the Batteries 21 922 Users Manual Specifications Parameter Range Accuracy Resolution Units Displayed Air Press
4. 4 Pitot Tube Connection 5 Replacing the Batteries AA 922 Users Manual vi 922 Introduction The Fluke 922 Airflow Meter the Meter is a handheld instrument that measures differential pressure and calculates air velocity and air flow The Meter ships with the following items e Holster e Carrying case e Tubing and tubing strap e Four AA Batteries installed e Users Manual e Wrist Strap 922 Users Manual Safety Information and Symbols A ACaution identifies conditions and actions that may damage the Meter A AWarning identifies conditions and actions that pose hazard s to the user AN Ah Warning To avoid injury or damage to the Meter follow these safety guidelines Read the entire Users Manual before using the Meter Use the Meter only as described in the Users Manual or the protection provided by the meter may be impaired Inspect the Meter before use Do not use it if it appears damaged The Meter contains no user serviceable parts Do not open the Meter For service the Meter must be sent to Fluke See Contacting Fluke Have the Meter serviced only by qualified service personnel Adhere to local and national safety codes Individual protective equipment must be used to prevent injury ACaution To avoid possible damage to the Meter avoid using the Meter in an excessively dirty or dusty atmosphere Excessive particle intake can damage the Meter Airflow Meter Safety Information
5. FLLIKE 922 Airflow Meter Users Manual PN 2683880 November 2006 Rev 1 12 07 2006 2007 Fluke Corporation All rights reserved Printed in Taiwan Product specifications are subject to change without notice All product names are trademarks of their respective companies 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 purchase This warranty does not cover fuses disposable batteries or damage from accident neglect misuse alteration contamination or abnormal condi tions of operation or handling Resellers are not authorized to extend any other war ranty on Fluke s behalf To obtain service during the warranty period contact your nearest Fluke authorized service center to obtain return authorization information then send the product to that Service Center with a description of the problem THIS WARRANTY IS YOUR ONLY REMEDY NO OTHER WARRANTIES SUCH AS FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSED OR IMPLIED FLUKE IS NOT LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUEN TIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you Fluke Corporation Fluke Europe B V P O Box 9090 P O Box 1186 Everett WA 98206 9090 5602 BD Eind
6. ary menu modes and functions e Press and then mal to access the Clear functions See Clearing Sample Data e Press and then ep to access the Recall menu See Recall e Press and then t amp Jto access the Clear All function See Clearing Sample Data Zero To zero differential pressure velocity or flow have both pressure ports open to ambient conditions then press and hold for 2 seconds Upon zeroing the meter beeps Min Max Avg The Min Max mode stores live minimum MIN and maximum MAX input values When the input drops below the stored minimum value or above the stored maximum value the Meter beeps and stores the new value Min Max mode also calculates an average AVG of all readings taken since the mode was activated This mode can be used to capture 10 Airflow Meter Saving Samples intermittent readings record maximum and minimum readings while you are away or when you cannot watch the Meter To use Min Max mode press 3 The maximum reading appears first Each subsequent press of DR steps through the minimum average and live readings and back to the maximum reading To exit Min Max mode press DR for approximately two seconds When in Min Max mode the Auto off feature is automatically disabled Hold Pressing w captures the current reading and holds it on the display If omg is pressed while in Min Max mode the reading is held on the display and Min Max
7. hoven U S A The Netherlands 11 99 Table of Contents Title Page Introductio ssec a ee EI Safety Information and Symbols roues ce Pushbutton Functions AN BIST Using the dE ang LL Measurement Units ren Automatic Power E EE Temperature eessseesesseseeeeeeeene nen nnne nenne nnnm nre nnne Secondary Menu Modes AAA LONG scusate NIMM NUN MILI Min Max AVO E lo Sr ee eels Saving Samples 0 0 ecceeeeeeeeeeeeeeeeeeeeseeeeeeeeeseaeeseeeeseaeessaeeseaeeseaeeseaeeeseeensas 922 Users Manual Measuring Differential Pressure Measuring Velocity Velocity Measurement Measuring low eeschte ge Sege e etn tcs Dresd vio au VERO agendas The Setup Men Clearing Sample Data Fiecall rien Maintenance hp Replacing the Batteries Specifications Agency Approvals Replacement Parts Accessories and Optional Items List of Tables Table Title Page 1 International Symbols sese 2 Pushbuttons sesssssseseseeeneneentntetntntntnn nnne tenete tenete nnne S 3 Display Description cccssssssessscscsceseseseseseseecesssenesesescececeterensseseseeees 8l iii 922 Users Manual List of Figures Figure Title Page T 922 Airflow UE 2 RT EE 3 Differential Pressure Meaeurement
8. light on and off Activates flow mode See Measuring Flow Calculates average of stored values Activates live Min Max Avg functions See Min Max Avg Used to increase manual inputs scroll through memory and to navigate the Setup menu Press and hold 2 seconds to zero out the display before taking readings Used to decrease manual inputs scroll through memory and to navigate the Setup menu Press to enter the Setup menu See The Setup Menu Used to access secondary features listed in yellow on the Meter Used to store data and accept changes to the setup menu and flow parameters Holds the present reading GG GO E EE C9 9 9 9 9 Activates pressure mode See Measuring Differential Pressure Airflow Meter Display Display Figure 2 and Table 3 describe the display Pressure Tai fT ME pf sampies Velocity TES Clear Clear all p Pamm H20inH20 Temp c Shape P l T Wee cm eog01a eps Figure 2 Display 922 Users Manual Table 3 Display Description Shift key is in use and secondary menu functionality is engaged Hold is engaged Annunciators showing that sample memory is being accessed and the number of samples Indicates that a stored sample or all samples is about to be deleted from memory Units of pressure velocity and flow Units of length and temperature Digits for temperature and setup parame
9. mode continues to store minimum and maximum values Saving Samples The Meter saves various samples in its three major modes To save a sample do the following 1 When taking a sample press 5 to store the sample The Meter can save up to 99 samples in each of its three modes 2 Oncethe samples are taken press to view the average of all the samples 11 922 Users Manual 3 Press we Pressure vevociy or viime to exit calculate mode If the memory is full 99 samples have been stored more samples cannot 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 following see Figure 3 Press pressure to enter the pressure mode Connect a single hose to the Input port leaving the Ref port unconnected With the tubing open to ambient conditions press and hold reg for 2 seconds Place the input hose in a different zone than the Meter The Meter displays the differential pressure of the input zone with respect to the reference zone For instance a positive reading means that the input zone is positively pressured with respect to the Meter location or its reference zone o RON 12 Airflow Meter Measuring Differential Pressure eog05 eps Figure 3 Differential Pressure Measurement 13 922 Users Manual Meas
10. ters Duct shape choices Low battery indicator Replace the battery as soon as the low battery indicator appears Digits for main measurements of pressure velocity and flow Min Max and Hold indicators amp GG eC amp E Pressure Velocity or Flow modes are active Airflow Meter Using the Meter Using the Meter Power To turn Meter power on or off press T 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 Setup menu See The Setup Menu Note If any measured value of any parameter is above the specified range the Meter shows OL Backlight Press to turn on the backlight The backlight automatically turns off after 2 minutes Automatic Power Off To conserve battery power the Meter changes to sleep mode after 20 minutes of inactivity To turn the Meter back on press Q To disable automatic power off turn the meter on while simultaneously holding T and amp until the display shows APO OFF Repeat this procedure to re enable this feature The display shows APO ON 922 Users Manual Temperature Ambient temperature is displayed on the Meter as a reference The temperature can be displayed in either C or F See The Setup Menu Secondary Menu Modes Use with other select pushbuttons to shift to second
11. to store it Use w and A to select the Y dimension Hold w jJ or A io increase the rate of change Press ep to store it 5 If the duct is round use w and A to select the duct diameter and press ep to store it 6 To measure flow refer to Steps 2 3 in Measuring Velocity Note If Measure Velocity measures negative on the display check to make sure that the hoses are attached to the correct ports on the Meter and the pitot tube 16 Airflow Meter The Setup Menu Notes HOLD SAVE CALCULATE SHIFT MIN MAX ZERO and SETUP UNITS can be used when measuring pressure velocity and flow If Pressure or veLocny is pressed before pressing ep 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 Setup menu to change the following Meter parameters e Pressure units e Velocity units e Flow Volume units e Temperature units e Duct dimension units To modify the Meter setup parameters 1 From any screen press WW to enter Setup menu editing mode 2 Use w Jand A to change the measurement units Hold down w or A to increase the rate of change 17 922 Users Manual 3 Press 4 to store the change The Meter beeps to signal that the change has been stored With each press of F3 the menu moves
12. to the next parameter To exit the Setup menu without changing subsequent parameters press Pressure verocity or ve Clearing Sample Data The Meter stores data that periodically will need to be cleared Individual samples or the entire data memory can be cleared When the memory is full 99 samples it shows Full on the display when amp amp is pressed and the Meter emits short beeps and will not save any value unless some samples are cleared To clear individual sample data do the following 1 Press either Pressure vevocity or viime to clear samples for that mode 2 Press 3 Press w CLEAR 4 Usel w Jand A to select the desired sample number The last measurement saved appears first 5 Presse to clear the sample Note that the number of samples displayed is reduced To clear all sample data do the following 1 Press 2 Press s CLEAR ALL 18 Airflow Meter Recall 3 Press to clear all samples The Meter beeps and the display shows 0 samples 4 To exit CLEAR or CLEAR ALL without deleting samples press Pressure verom or LAT before pressing R5 Recall 1 Press either Pressure vetocity or vow to recall samples for that mode 2 Press 1 3 Geen igen to recall samples Use _w_ and A to locate the desired sample Hold or w to increase the rate of change 4 Press PRESSURE m
13. ure 4000 Pascal 1 1 Pascal 1 Pascal Pa 16 in H O 1 4 0 01 in H O 0 001 in H O in H O x 400 mm HO 1 4 0 1 mm H O 0 1 mm H O mm HO 40 mbar 1 0 01 mbar 0 01 mbar mb 0 6 PSI 1 0 0001 PSI 0 0001 PSI PSI Air Velocity 250 16 000 fpm 2 5 of reading at 1 fpm fpm 1 80 m s Ku mis 0 001 m s m s Air Flow 0 99 999 cfm accuracy is function of 1 cfm cfm Volume 0 99 999 m hr velocity and duct size 1 m hr m hr 0 99 999 Ve 1 l s Us Temperature 0 to 50 C 41 2 C 0 1 C C 32 to 122 F 41 4 F 0 1 F SF Use of Zero function is required to achieve these specifications 22 Airflow Meter Specifications Environmental Operating Temperature 0 C to 50 C Storage Temperature 40 C to 60 C Temperature Coefficient 0 025 X specified accuracy C lt 18 C or gt 28 C Relative Humidity Non condensing lt 10 C 90 RH 10 C to 30 C 75 RH 30 C to 40 C 45 RH 40 C to 50 C Without Condensation IP Rating IP40 Operating Altitude 2000 m Storage Altitude 12000 m EMI RFI EMC Meets requirements for EN61326 1 Vibration MIL PREF 28800F Class 3 Maximum Pressure at each Port 10 PSI 23 922 Users Manual Agency Approvals C Conforms to EU directives w i Conforms to Australian standards Replacement Parts Replacement Part Part Number Battery 1 5 V Alkaline Size AA 4 NEDA 15A
14. uring 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 vetocity to enter Velocity mode 2 Connect the hoses to the pitot tube and to the Meter The Input pressure port on the Meter connects to the yellow hose from the total pressure connection of the pitot tube The Ref pressure port on the Meter connects to the black hose from the static pressure connection of the pitot tube See Figure 4 Note If Measure Velocity measures negative on the display check to make sure that the hoses are attached to the correct ports on the Meter and the pitot tube 3 With the pitot tube open to ambient conditions press and hold al for 2 seconds 14 Airflow Meter Measuring Velocity eog03 eps Figure 4 Pitot Tube Connection 15 922 Users Manual Measuring Flow 1 Press 4 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 w or 4 to find the proper duct type for the measurement rectangular or round 3 Press Ui to select the duct type m 4 Ifthe duct is rectangular use w and A to select the X dimension and press e
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