User`s Manual CFM/CMM Thermo Anemometer + InfraRed
Contents
1. Note The battery compartment tilt stand and tripod mount are located on the rear of the instrument Keypad Press to turn the meter ON or OFF IR Laser Pointer Press and hold to measure MAX MIN Record and store the highest and lowest airflow or velocity readings lt q LEFT also serves as change decimal point button in AREA mode UNITS Press to select the mode of operation In FLOW mode the meter displays air volume In VELOCITY mode the meter displays air speed A UP also serves as increase number button in AREA mode HOLD Press to freeze the displayed reading Press again to unlock display gt RIGHT also serves as change digit button in AREA mode AREA Press and hold to manually enter the area of a duct in CFM or CMM mode Press and hold to scroll thru memory locations This button also clears memory in the Averaging mode Fe Press to turn the backlight on off Hold to disable Auto Power Off MAXMIN Temperature Press to record and store the highest lowest readings for air temperature HOLD Temperature Press to freeze the displayed temperature reading Press again to unlock the display AVG Press and hold to enter averaging mode Averages up to 20 readings 4 AN200 V2 1 05 07 Display Layout MEM PROBE TEMP 1000 A VEL oo AREA CTI OGG IR TEMP EJI MAX MIN AVG HOLD MAX top of LCD Max Hold function engaged for the Air Temperature function HOLD top o2. C slide switch located in the battery compartment 2 Replace the protective jacket and connect the sensor to the sensor input jack on top of the meter Data Hold Air Temperature 1 While taking measurements press the PROBE TEMPERATURE HOLD button to freeze the air temperature reading 2 The HOLD indicator will appear in the bottom of the LCD display 3 Press PROBE TEMPERATURE HOLD again to return to normal operation Max Min Record Air Temperature This allows the user to record and view the highest MAX lowest MIN air temperature readings 1 Press the TEMPERATURE MAX MIN button once The MAX indicator will appear on the display and the meter will begin keeping track of the MAX MIN air temperature values 2 Press the button again to view the minimum reading The MIN indicator along with the minimum air temperature reading will appear on the LCD display 3 Press the button again to return to normal operation Automatic Power OFF To conserve battery life the meter automatically turns off after 20 minutes To override this feature 1 Turn the meter OFF 2 Press and hold the Backlight key while turning the meter ON 3 dis APO will appear in the display The AUTO POWER OFF feature will now be disabled 4 Note that AUTO POWER OFF is re enabled each time the meter is turned on 5 Also note that AUTO POWER OFF is disabled in CFM CMM mode 9 AN200 V2 1 05 07 InfraRed Non Contact Temperature Meas
3. appear in the top right of the display indicating the memory location Push the AREA button to scroll thru and select the desired location Once you have selected the desired memory location enter your dimension Use the A UP button to change the flashing digit Use the lt LEFT button to move the decimal Use gt RIGHT button to select the other digits After all of the digits are entered press and hold the AREA button until it beeps twice to save the area into memory and return to CFM or CMM measuring mode To select and use a previously stored dimension press and hold the AREA button until it beeps twice Press AREA to scroll thru the 8 memory locations Press and hold the AREA button until it beeps twice to return to the CFM or CMM measuring mode Air Flow Measurements Up to 20 Point averaging 1 To enter 20 Point Averaging Mode press and hold the AVG button until it beeps twice The AVG icon will be displayed Take a measurement and press the AVG button A single beep will sound and the HOLD icon will appear in the display The average reading will be displayed and number of readings measured will appear in the upper right hand corner of the display After 5 seconds the display will return to the current reading IMPORTANT Please note that the average readings are only held for 5 seconds and cannot be recalled Repeat steps 2 3 until all desired points have been measured Press the AREA button to clear the
4. multipoint averaging memory To return to standard airflow measuring mode press and hold AVG button until meter beeps twice 7 AN200 V2 1 05 07 Data Hold Air Velocity Air Flow 1 While taking measurements press the HOLD button to freeze the air velocity air flow reading for later viewing 2 The HOLD indicator will appear in the bottom of the LCD display 3 Press HOLD again to return to normal operation MAX MIN AVG Record Air Velocity Air Flow This allows the user to record and view the highest MAX lowest MIN and average AVG readings 1 Press the button MAX MIN button The AVG indicator and RECORD indicator along with the average reading will appear on the LCD display and the meter will begin keeping track of the MAX MIN and Average values 2 Press the MAX MIN button again The MAX indicator will appear on the display and display the Max reading 3 Press the MAX MIN button again to view the minimum reading The MIN indicator along with the minimum reading will appear on the LCD display and display the Min reading 4 Press the MAX MIN button again to display current readings NOTE the meter will keep recording MAX MIN AVG readings 5 To clear and stop MAX MIN AVG recording and return to normal operation press the AREA button once when displaying the current reading 8 AN200 V2 1 05 07 Temperature Units 1 Remove the meter s rubber protective jacket and select the desired temperature units using the F
5. AN200 V2 1 05 07 InfraRed Measurement Considerations e When taking IR measurements the meter automatically compensates for ambient temperature changes Note that it may take up to 30 minutes to adjust to extremely wide ambient changes e Low temperature measurements quickly followed by high temperature measurements may require several minutes to stabilize as a result of the IR sensor cooling process e If the surface of the object under test is covered with frost oil grime etc clean before taking measurements e If an object s surface is highly reflective apply masking tape or flat black paint before measuring e Steam dust smoke etc can obstruct measurements e To find a hot spot aim the meter outside the area of interest then scan across in an up and down motion until the hot spot is located IR Theory IR thermometers measure the surface temperature of an object The meter s optics sense emitted reflected amp transmitted energy that is collected and focused onto the meter s detector The meter s circuitry translates this information into an LCD reading IR Field of View Ensure that the desired target is larger than the spot size as shown in the diagram below As the distance from an object increases the spot size of the area measured by the meter becomes larger The meter s field of view ratio is 8 1 meaning that if the meter is 8 inches from the target the diameter spot of the object under test must
6. User s Manual EXT INSTRUMENTS CFM CMM Thermo Anemometer InfraRed Thermometer Model AN200 Introduction Congratulations on your purchase of the Extech AN200 CFM CMM Thermo Anemometer with InfraRed Thermometer This instrument measures Air Velocity Air Flow volume Air Temperature with probe and Surface Temperature with the InfraRed function The large easy to read backlit LCD includes primary and secondary displays plus numerous status indicators The InfraRed feature includes a laser pointer for convenient targeting In addition the meter can store 16 area setting dimension for easy recall This meter is shipped fully tested and calibrated and with proper use will provide years of reliable service Safety e Use extreme caution when the laser pointer beam is on e Do not point the beam toward anyone s eye or allow the beam to strike the eye from a reflective surface e Do not use the laser near explosive gases or in other potentially explosive areas 2 AN200 V2 1 05 07 Specifications Air Velocity 0 40 30 00 m s 0 01 m s 3 rdg 0 20 m s 1 4 108 0 km h 0 1 km h 3 rdg 0 8 km hr m s meters per sec km h kilometers hour ft min feet per minute Range Resolution wrea CMM cubic meters min Air Temperature InfraRed Temperature CFM cubic ft min 0 999999 ft min 0 to 999 91 Circuit Display Sampling rate Sensors IR Spectral res
7. be at least 1 inch Other distances are shown below in the field of view diagram Distance to Object is Diameter of Spot Emissivity Most organic materials and painted or oxidized surfaces have an emissivity of 0 95 Inaccurate readings will result when measuring shiny or polished surfaces To compensate cover the surface under test with masking tape or flat black paint Allow time for the tape to reach the same temperature as the material underneath then measure the temperature of the tape or the painted surface 11 AN200 V2 1 05 07 Thermal Emissivity Table for Common Materials Material Emissivity Material Emissivity Asphalt 0 90 to 0 98 Cloth black 0 98 Concrete 0 94 Human skin 0 98 Cement 0 96 Leather 0 75 to 0 80 Sand 0 90 Charcoal powder 0 96 Earth 0 92 to 0 96 Lacquer 0 80 to 0 95 Water 0 67 Lacquer matt 0 97 Ice 0 96 to 0 98 Rubber black 0 94 Snow 0 83 Plastic 0 85 to 0 95 Glass 0 85 to 1 00 Timber 0 90 Ceramic 0 90 to 0 94 Paper 0 70 to 0 94 Marble 0 94 Chromium oxides 0 81 Plaster 0 80 to 0 90 Copper Oxides 0 78 Mortar 0 89 to 0 91 Iron Oxides 0 78 to 0 82 Brick 0 93 to 0 96 Textiles 0 90 12 AN200 V2 1 05 07 Useful Equations and Conversions Area equation for rectangular or square ducts Height H Width W Area A Width W x Height H Area equation for circular ducts Area A Tx r Where T 3 14 and r rad
8. ce to recall the previous average The average will be cleared when you enter the Averaging Mode again 6 AN200 V2 1 05 07 Air Flow Measurements CMM CFM f 2 Turn on the meter using the ON OFF button Press the UNITS button to select the desired air flow units CMM cubic meters per minute or CFM cubic feet per minute NOTE At power up the meter will Arrow display the last unit of measure previously entered ee Side view of Vane To begin entering the area in m or ft press and hold the AREA button until it beeps twice The leftmost digit of the bottom display will begin to flash Use the A UP button to change the flashing digit Use the lt LEFT button to move the decimal Use gt RIGHT button to select the other digits After all of the digits are entered press and hold the AREA button until meter beeps twice to save the area into memory and return to CFM or CMM measuring mode lt _ airflow Place the sensor in the air stream Ensure that the air enters the vane as indicated by the arrow sticker placed inside the vane Refer to the diagram The large main LCD display shows the Air Velocity reading The upper right LCD sub display shows the temperature reading The meter has 16 memory locations 8 for CFM and 8 for CMM that can be used to store commonly used area sizes that you can recall at anytime 1 Press the AREA button until meter beeps twice A memory location number will
9. f LCD Data Hold function engaged for the Air Temperature function PROBE TEMP Reminder that the top LCD digits represent Air Vane Temperature A Indicates that the laser pointer is on IR TEMP Indicates that the larger LCD digits represent IR temperature measurement VEL indicates that meter is in air velocity mode FLOW indicates that meter is in air flow mode MAX bottom of LCD Max Hold for the IR Temperature and RH function HOLD bottom of LCD Data Hold for the IR Temperature function and RH function C F Temperature units of measure CFM CMM airflow units of measure Ft m units for area dimensions m s ft min km h MPH knots air velocity units of measure X10 X100 multipliers for air flow readings AVG air averaging mode RECORD indicates that min max function is running top for temp bottom for air Large LCD digits at center of display for Relative Humidity and IR Temperature Smaller LCD digits at top right of display for Probe Temperature _ Low battery indicator 5 AN200 V2 1 05 07 Operation Connecting the Vane a The vane plug is inserted in the meter s sensor jack at the top of the meter The plug and jack are keyed so that the plug can only fit in the jack one way Turn the plug carefully until it lines up with the jack and then firmly push the plug in place Do not apply undue force or try to twist the plug side to side If the vane is not connected to the meter or if the sensor i
10. irect 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 repair and calibration services for the products we sell Extech also provides NIST certification for most products Call the Customer Service Department for information on calibration services available for this product Extech recommends that annual calibrations be performed to verify meter performance and accuracy T 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 2006 Extech Instruments Corporation All rights reserved including the right of reproduction in whole or in part in any form 14 AN200 V2 1 05 07
11. ius x radius 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 tms Z TER Dors rao osia 8 1km h 0 2778 0 54 0 6222 1 MPH 0 4464 87 89 0 8679 1 6071 1 13 AN200 V2 1 05 07 Warranty 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 d
12. ponse IR Emissivity IR distance ratio IR sampling rate Automatic Power off Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Battery Battery life Battery current Weight Dimensions 4 to 500 F 20 to 260 C 1 F C 2 reading or 4 F 2 C whichever is greater Custom LSI microprocessor circuit Dual function 0 5 13 mm 4 digit LCD 1 reading per second approx Air velocity flow sensor Conventional angled vane arms with low friction ball bearing Temperature sensors NTC type precision thermistor and InfraRed 6 to 14um 0 95 fixed 8 1 2 5 readings per second approx Auto shut off after 20 minutes to preserve battery life 32 F to 122 F 0 C to 50 C 14 to 140 F 10 to 60 C lt 80 RH lt 80 RH 2000 meters 7000ft maximum One 9 volt NEDA 1604 battery 80 hours approx if Backlight and Laser are used continuously the battery life is reduced to 2 to 3 hours approx 8 3 mA DC approx 1 6 Ibs 725g including battery amp probe Main instrument 7 0 x 2 9 x1 2 178 x 74 x 33mm Sensor Head 2 75 70mm Diameter 3 AN200 V2 1 05 07 Meter Description Power ON OFF button Probe input jack Laser pointer IR Sensor Rubber holster LCD Display IR thermometer measurement button Airflow buttons 4 9 Air Temperature function buttons 2 10 Vane 11 Airflow Average button 12 Backlight button PY Or Be QIN a
13. s defective the LCD display will indicate dashed lines in place of an air velocity reading Air Velocity Measurements a Turn on the meter using the ON OFF button Press UNITS button to select the desired unit of measure NOTE At power up the meter will display the last unit of measure previously entered a Place the sensor in the air stream Ensure that the air enters the vane as indicated by the arrow sticker placed inside the vane Refer to the diagram lt Side view of Vane Arrow Pre lt __ airflow View the air velocity and temperature readings on the LCD Display The large main LCD display shows the Air Velocity reading The upper right LCD sub display shows the temperature reading Air Velocity Measurements Up to 20 Point averaging f To enter 20 Point Averaging Mode press and hold the AVG button until it beeps twice The AVG icon will be displayed Take a measurement and press the AVG button A single beep will sound and the HOLD icon will appear in the display The average reading will be displayed and number of readings measured will appear in the upper right hand corner of the display After 5 seconds the display will return to the current reading Repeat steps 2 3 until all desired points have been measured To return to standard velocity measuring mode press and hold AVG button until meter beeps twice Note In the standard velocity measuring mode press the AVG button on
14. urements 1 The IR sensor is located at the top of the meter 2 Point the sensor toward the surface to be measured 3 Press and hold the red IR button to begin measuring the surface temperature of a desired target IR TEMP and will appear on the display The laser pointer will switch on to help aim the meter 4 The measured IR surface temperature will appear at the center of the LCD larger digits The temperature displayed is the temperature of the area within the spot 5 When the red IR button is released the laser pointer will switch off and the reading will freeze data hold on the display for approximately 3 seconds 6 Note that the vane Air Temperature continues to monitor temperature during IR tests and its temperature is displayed on the top of the LCD smaller digits 7 After approximately 3 seconds the meter defaults to the Air Flow and Air Temperature display WARNING Do not directly view or direct the laser pointer at an eye Low power visible lasers do not normally present a hazard but may present some potential for hazard if viewed directly for extended periods of time Battery Replacement When appears on the LCD the 9V battery must be replaced Disconnect the vane Remove the meter s rubber protective jacket Use a Phillips screwdriver to open the rear battery compartment Replace the 9V battery Close the battery compartment and replace the meter s protective jacket oP on gt 10
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