User's Guide Heavy Duty CFM Thermo
Contents
1. button The LCD will display VEL when the velocity mode is selected 4 Select the desired temperature units using the C F select button The LCD will reflect the current unit selection 5 Select the desired air velocity units using the UNIT button The LCD will reflect the current unit selection Qe 6 Place the sensor in the air current to i be measured with the lt amp B gt a lt symbol on the inlet side of the vane Air Direction see diagram gt 7 View the air velocity and temperature readings on the LCD Display The large main LCD display shows the Air Velocity reading The lower LCD sub display shows the temperature reading Data Hold 1 While taking measurements press the HOLD button to freeze the LCD reading 2 The HOLD indicator will appear on the LCD when the display is in Data Hold mode 3 Press HOLD again to return to normal operation Maximum and Minimum Recording The 407113 allows the user to record and view the highest MAX and lowest MIN readings 1 Press the RECORD RECALL button once The REC indicator will appear on the display and the meter will begin recording the MAX and MIN values 2 Press the RECORD RECALL button to stop the MAX MIN recording and display the maximum reading The MAX indicator along with the maximum reading will appear on the LCD display 3 Press RECORD RECALL again to view the minimum value The MIN indicator along with the minimum reading will appear on the LCD disp2. User s Guide EXTECH INSTRUMENTS Heavy Duty CFM Thermo Anemometer Model 407113 alana AVG START ENTER RESET AREA O O OQO CFM Heme 407113 Introduction Congratulations on your purchase of the Extech 407113 CFM meter This handheld meter can display Air Flow CFM with Area or Air Velocity with Temperature on a 10 000 count 0 to 9999 dual display LCD Other functions include MIN MAX Record Recall RS 232 PC interface and Data Hold The metal vane sensor offers rugged durability and higher temperature withstand than comparable devices Careful use of this meter will provide years of reliable service Specifications General Specifications Display Measurements Data Hold Sampling rate Sensors MIN MAX Auto Power OFF PC Interface Over range indication Low battery indication Power supply Operating conditions Dimensions Weight Weight Dual Display Multi function 10 000 count 0 to 9999 LCD Air Velocity m s km h ft min knots mph Air Flow CMM m min and CFM ft min Temperature C and F Freezes displayed reading One 1 reading per second Air velocity flow sensor Metal angled vane arms with low friction ball bearing Temp Sensor Precision thermistor Records Recalls lowest and highest readings Automatic shut off after 15 minutes RS 232 Serial Communications 16 bit data stream 1___ appears on the LCD LBT appears on the LCD 9V Battery
3. call customer service for details on services available Extech recommends that calibration be performed on an annual basis to ensure calibration integrity o A Support line 781 890 7440 Technical support Extension 200 E mail support extech com Repair amp Returns Extension 210 E mail repair extech com Product specifications subject to change without notice For the latest version of this User s Guide Software updates and other up to the minute product information visit our website www extech com Extech Instruments Corporation 285 Bear Hill Rd Waltham MA 02451 Copyright 2005 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 8 Model 407113 V3 2 07 07 sr puR This datasheet has been downloaded from www EEworld com cn Free Download Daily Updated Database 100 Free Datasheet Search Site 100 Free IC Replacement Search Site Convenient Electronic Dictionary Fast Search System www EEworld com cn All Datasheets Cannot Be Modified Without Permission Copyright Each Manufacturing Company
4. consumption 8 3mA approx Meter 32 to 122 F 0 to 50 C 80 RH max Sensor 32 to 175 F 0 to 80 C Main instrument 7 1 x 2 8 x1 3 180 x 72 x 32mm Sensor head 2 8 72mm diameter 0 84 Ibs 381g for meter and sensor 2 Model 407113 V3 2 07 07 Range Specifications Air Velocity Measurements Accuracy rdg m s meters per second 0 50 35 0 m s 0 01 m s lt 10 2 0 2m s 0 1 m s gt 10 km h kilometers per hour 1 8 126 0 km h 0 1 km h 2 0 8km h ft min feet per minute 100 6890 ft min 2 40ft min mph miles per hour 1 1 78 3 mph 0 1 mph 2 0 4m h knots nautical miles per hour 2 0 4knots Air Flow Measurements Range Resolution Area CMM cubic meters per minute 0 to 9 999m CFM cubic feet per minute 0 to 9 9998t Air Temperature Accuracy 32 to 175 F 0 to 80 C 1 5 F 0 8 C 3 Model 407113 V3 2 07 07 Meter Description 1 Sensor Input RS 232 PC Interface jack LCD Display Vane Rubber Holster Keypad No o PF DN Battery compartment rear Note To access the rear battery compartment first remove the rubber holster that jackets the meter 4 Model 407113 V3 2 07 07 Operation Air Velocity Measurements 1 Connect the sensor to the sensor input jack on top of the meter 2 Turn on the meter using the Power button 3 Select the VELOCITY function using the FLOW VELOCITY
5. e The main LCD displays the averaged Air Flow value To return to the normal display mode press the FLOW MODE button until the AVG icon switches off RS 232 PC Interface The 407113 is equipped with a 3 5mm phone jack meter top for connection to a PC for data acquisition purposes To obtain PC interface cabling and Windows data acquisition software Model 407001 contact Extech Instruments or an authorized distributor Instructions for use are provided with the data acquisition software hardware kits 6 Model 407113 V3 2 07 07 Battery Replacement When the LBT icon appears on the LCD the 9V battery must be replaced 1 Remove the rubber holster that surrounds the entire meter 2 Slide off the rear battery compartment 3 Replace the 9V battery 4 Affix the battery compartment cover and the meter holster Useful Equations and Conversions Area equation for rectangular or square ducts Height H Area A Width W x Height H Width W Area equation for circular ducts Area A x r Where 3 14 and r radius x radins Cubic equations CFM ft min Air Velocity ft min x Area ft CMM m min Air Velocity m sec x Area m x 60 NOTE Measurements made in inches must be converted to feet or meters before using the above formulae Unit of Measure Conversion Table m s ft min knots km h MPH 1 MPH 0 4464 87 89 0 8679 1 6071 1 7 Model 407113 V3 2 07 07 Warra
6. l indicate the area entered in ft or m The main LCD displays the Air Flow in CFM cubic feet per minute or CMM cubic meters per minute If the CFM or CMM reading exceeds 9999 use the displayed X10 or X100 multiplier to calculate the reading 8 Note that for FLOW measurements three modes apply The normal default mode where the actual flow is indicated and the two modes described below under 2 3 MAX Flow and AVG Flow Note The temperature function is not active in the FLOW mode 2 3V MAX Flow Mode In this mode the meter will display two thirds the measured Flow Volume To access this mode ensure that the meter is in the FLOW mode via the FLOW VELOCITY button and then press the FLOW MODE button until the 2 3V MAX display icon appears Now the Flow display will be 2 3 the actual measurement To return to the normal display mode press the FLOW MODE button until the 2 3VMAX and the AVG icons switch off AVG Average Flow Mode In this mode the meter will display the AVERAGE Flow for up to 20 readings To access this mode ensure that the meter is in the FLOW mode via the FLOW VELOCITY button and press the FLOW MODE button until the AVG display icon appears Now each time the AVG START button is pressed a reading will be taken and averaged The lower LCD display becomes a 20 reading counter and with each reading taken the counter is incremented Allow 3 or 4 seconds between AVG START button presses for the display counter to updat
7. lay 4 To return to normal operation press and hold the RECORD RECALL button for approx 3 seconds The display indicators REC MAX and MIN will disappear NOTE Placing the meter in the RECORD RECALL mode by pressing the RECORD RECALL button disables the AUTO POWER OFF feature NOTE Handle the vane carefully If the metal vane blades are inadvertently bent or damaged erroneous readings may result 5 Model 407113 V3 2 07 07 Air Flow Volume Measurements CMM CFM 1 Connect the sensor to the sensor input jack on top of the meter 2 Turnon the meter using the POWER button 3 Select the FLOW mode using the FLOW VELOCITY button The LCD will display FLOW CFM or FLOW CMM when the flow function has been selected 4 Select the desired air flow units CMM cubic meters per minute or CFM cubic feet per minute using the UNIT button The LCD will reflect the selection 5 Measure the dimensions of the duct or vent and calculate the area in square feet or square meters Note If the dimensional measurements are made in inches or cm convert them feet or meters before calculating the square area 6 Press the AREA button to begin entering the area in m or ft Use the amp button to increment the flashing digit use the W button to decrement use the B button to select the next digit and use the button to set the decimal point 7 Press the ENTER RESET button after the area value has been entered The bottom display wil
8. nty EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment a six month limited warranty applies to sensors and cables If it should become necessary to return the instrument for service during or beyond the warranty period contact the Customer Service Department at 781 890 7440 ext 210 for authorization or visit our website www extech com for contact information A Return Authorization RA number must be issued before any product is returned to Extech The sender is responsible for shipping charges freight insurance and proper packaging to prevent damage in transit This warranty does not apply to defects resulting from action of the user such as misuse improper wiring operation outside of specification improper maintenance or repair or unauthorized modification Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive and no other warranty whether written or oral is expressed or implied Calibration and Repair Services Extech offers complete repair and calibration services for all of the products we sell For periodic calibration NIST certification on most products or repair of any Extech product
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