Operation - Extech Instruments AN100 User Manual

Operation

Connecting the Vane
Air Velocity Measurements (Single Point)
Air Velocity Averaging Mode
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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.
3. If the vane is not connected to the meter or if the sensor is defective, the LCD display will
indicate OL in place of a Temperature reading.
1. Turn on the meter using the ON/OFF
2. 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.
3. Place the sensor in the air stream. Ensure that the air enters
the vane as indicated by the arrow sticker placed inside the
vane.
4. View the 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.
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.
3. 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.
4. Repeat steps 2 - 3 until the desired number of points have been measured.
5. 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 once to recall the
previous average. The average will be cleared when you enter the Averaging Mode again.
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Side view of Vane
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