EZ30 Datasheet, PDF (3/6 Pages) Extech Instruments Corporation. – EzFlex Thermo-Anemometer

Operation
Meter Power
1. Press the POWER button to turn the meter on. If the display does not switch on, check
that a fresh 9V battery is installed.
2. Press the POWER button to turn the meter off.
3. The meter is equipped with an AUTO POWER OFF feature. The meter automatically
shuts off after 15 minutes to conserve battery energy. To disable this feature, hold
down the UNITS key while turning the meter on. “disAPO” will appear in the display to
indicate that Auto Power Off has been disabled.
Measuring Air Velocity and Temperature
1. Place the sensor in the air stream under test.
2. Read the Air Velocity and Temperature measurements directly on the LCD.
3. To calculate Air Volume in CFM (cubic feet per minute) or CMM (cubic meters per
minute) refer to the ‘Useful Equations and Conversions’ section.
Selecting the Temperature unit of measure (^oC/^oF)
Press and hold the UNITS key for 3 seconds to select the temperature unit of measure.
The meter will beep twice and the display will indicate the currently selected unit of
measure.
Selecting the Air Velocity unit of measure
Press the UNITS key to change the unit of measure for Air Velocity measurements. The
display will reflect the current selection. A list of measurement units is printed in the
specifications later in this manual.
Data Hold/Backlight
To freeze the LCD display, momentarily press the HOLD key. The 'HOLD' icon will appear
on the LCD and the reading will remain unchanged. Momentarily press the HOLD button
again to return to normal operation (the 'HOLD' icon will switch off).
Press and hold the key for 3 seconds to turn the backlight on/off.
Record and Recall MAX / Min Function
1. To begin capturing the Maximum (MAX) and Minimum (MIN) air velocity and
temperature readings, press the MAX/MIN key and the ‘RECORD’ icon will appear in
the display.
2. Now, use the MAX/MIN key to toggle the view from MIN to MAX to RECORD. The
‘MAX’ or ‘MIN’ will appear along with the recalled reading for convenience. In RECORD
mode, the meter will display the current reading but will continue to capture MAX and
MIN readings.
3. To return to normal operation, press and hold the MAX/MIN key for 3 seconds to clear
and stop MAX/MIN recording. The meter will beep twice and the ‘MAX’/‘MIN’ and
‘RECORD’ icons will switch off.
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Model EZ30 Version 1.1 04/06