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Table of Contents
Related Manuals for Extech Instruments AN100-NIST
Summary of Contents for Extech Instruments AN100-NIST
- Page 1 USER MANUAL CFM/CMM Thermo Anemometer Model AN100...
- Page 2 Introduction Congratulations on your purchase of the Extech AN100 CFM/CMM Thermo Anemometer. This instrument measures Air Velocity, Air Flow (volume) and Temperature. The large, easy-to-read backlit LCD includes primary and secondary displays plus numerous status indicators. The meter is shipped fully tested and calibrated and with proper use will provide years of reliable service.
- Page 3 Keypad • AUTO POWER OFF Press to turn the meter ON or OFF • MAX/MIN (for Airflow/Air Velocity) Used to record and store the highest, lowest and average airflow or velocity readings. ◄ (LEFT) also serves as change decimal point button in AREA mode •...
- Page 4 Display MAX (top of LCD): Max Hold function engaged for the Air Temperature function HOLD (top of LCD): Data Hold function engaged for the Air Temperature function VEL: indicates that meter is in air velocity mode FLOW: indicates that meter is in air flow mode ...
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Page 5: Operation
Operation Connecting the Vane 1. 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. 2. 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. - Page 6 Air Flow Measurements (CMM / CFM) Turn on the meter using the ON/OFF button Side view of Vane Press the UNITS button to select the desired air flow units: CMM (cubic meters per minute) or CFM (cubic feet per minute). Arrow NOTE: At power up the meter will display the last unit of measure previously entered.
- Page 7 Air Flow Averaging Mode 1. To enter 20 Point Averaging Mode, press and hold the AVG button until it beeps twice. The AVG icon will be displayed. 2. Take a measurement and press the AVG button. A single beep will sound and the HOLD icon will appear in the display.
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Page 8: Battery Replacement
Battery Replacement When appears on the LCD, the 9V battery must be replaced. 1. Disconnect the sensor. 2. Remove the meter’s rubber protective jacket 3. Use a Phillips screwdriver to open the rear battery compartment 4. Replace the 9V battery 5. -
Page 9: Specifications
Specifications Air Velocity Range Resolution Accuracy (% of reading) m/s (meters per sec) 0.40 - 30.00 m/s 0.01 m/s ± (3%rdg + 0.20 m/s) km/h (kilometers/hour) 1.4 - 108.0 km/h 0.1 km/h ± (3%rdg + 0.8 km/hr) 80 – 5900 ft/min ft/min (feet per minute) 1 ft/min ±... -
Page 10: Useful Equations And Conversions
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 π Area (A) = Radius π Where = 3.14 and r = radius x radius Cubic equations CFM (ft /min) = Air Velocity (ft/min) x Area (ft...
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