Extech Instruments AN200 User Manual page 4

Keypad
•
• IR + Laser Pointer Press and hold to measure.
• MAX/MIN (Airflow)
• UNITS Press to select the mode of operation. In FLOW mode, the meter displays air volume. In
• HOLD Press to freeze the displayed reading. Press again to unlock display. ►(RIGHT) also serves
• AREA Press and hold to manually enter the area of a duct in CFM or CMM mode.
•
• MAX/MIN (Temperature)
•
•
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Press to turn the meter ON or OFF
Record and store the highest and lowest airflow or velocity readings. ◄
(LEFT) also serves as change decimal point button in AREA mode
VELOCITY mode, the meter displays air speed. ▲ (UP) also serves as increase number button in
AREA mode.
as change digit button in AREA mode.
Press and hold to scroll thru memory locations.
This button also clears memory in the Averaging mode.
Press to turn the backlight on/off. Hold to disable Auto Power Off.
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.
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