5
Controls and Indicators
1. ON/OFF: Turns ON the meter with auto-sleep mode. Turns OFF
the meter at any mode.
NOTE: When the meter is OFF, press more than four seconds to
enter “UNITS” selection.
2. MODE: Press to select different modes (Temp, DP, WB, RH,
Velocity). Press and hold until beep to select “VOLUME”
function.
3. ENTER: To confirm the setting and calibration.
NOTE: Also used to recall values stored in memory for multi-
point average.
4. MIN/MAX/AVG and UP: Press to view Minimum, Maximum,
and Average value.
• To increase digit during setup for volume.
5. LW-D-AREA: Press to scroll through options for entering area.
Length/Width (LW) for open rectangular duct, Diameter (D) for
open round ductwork, and Area (A) to enter the specified grill
free area (Ak) information.
4
1. 2. 3.
6.
8.7.
4. 5.
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