Extech Instruments EX-AN100 User Manual
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Extech Instruments EX-AN100 User Manual

Cfm/cmm thermo anemometer
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User's Manual
CFM/CMM Thermo Anemometer
Model AN100
CFM/CMM
Thermo-Anemometer
AN100

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Summary of Contents for Extech Instruments EX-AN100

  • Page 1 User's Manual CFM/CMM Thermo Anemometer Model AN100 CFM/CMM Thermo-Anemometer AN100...

  • Page 2: Meter Description

    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: Display Layout

    Display Layout • 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 •...

  • Page 4: 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.
  • Page 5 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 Arrow feet per minute). NOTE: At power up the meter will display the last unit of measure previously entered.

  • Page 6: Battery Replacement

    Data Hold (Air Velocity/Air Flow) 1. While taking measurements, press the HOLD button to freeze the air velocity/air flow reading. 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.

  • Page 7: Specifications

    Specifications Air Velocity Range Resolution Accuracy m/s (meters per sec) 0.40 - 30.00 m/s 0.01 m/s ± (3% + 0.20 m/s) km/h (kilometers/hour) 1.4 - 108.0 km/h 0.1 km/h ± (3% + 0.8 km/hr) ft/min (feet per minute) 80 – 5900 ft/min 1 ft/min ±...

  • Page 8: Warranty

    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.

  • Page 9: 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 Area (A) = Radius Where = 3.14 and r = radius x radius Cubic equations CFM (ft /min) = Air Velocity (ft/min) x Area (ft...

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