3
SDL300-EN-V1.3 -10/11
Operation
Power ON-OFF
Power the meter by pressing and holding the power key
for at least 1.5 seconds.
Press and hold the power key for at least 1.5 seconds to power OFF the meter.
Meter Functions
This meter has two modes of operation. Press and hold the FUNCTION key for at least 1.5 seconds
to switch from one mode to the other.
Air Velocity plus Temperature mode (meter briefly displays
An
icon)
Type K or J thermocouple temperature mode (meter briefly displays
tP
icon)
Air Velocity plus Temperature Mode
1.
Select the Air Velocity and Temperature mode.
2.
Connect the vane probe to the meter’s probe jack (top right of meter) via the probe plug.
3.
Hold the probe by its handle and allow the air flow to enter the vane. Note that the air flow must
face the vane icon.
4.
The meter will display the air velocity measurement (upper display area) and the air
temperature (lower display area)
Changing the Air Velocity Unit of Measure
This meter offers five (5) units of measure selections for air velocity: m/s (meters per second), FPM
(feet per minute), Km/h (kilometers per hour), knots, and mph (miles per hour).
1.
Press and hold the UNIT key for at least 1.5 seconds to switch from one unit of measure to
another.
2.
Note that pressing and holding the UNIT key continuously allows for quicker scrolling. Release
the key when the desired unit of measure is displayed.
Thermcouple (Type J or K) Temperature Mode
1.
Select the Thermocouple Temperature mode using the FUNCTION button.
2.
The meter will display a ‘J’ or a ‘K’; on the left side of the display indicating the current setting.
To change the thermocouple type, refer to the Setup Mode section.
3.
Connect a Type J or Ty
pe K thermocouple to the meter’s sub-miniature thermocouple jack (top
of meter on the left).
4.
Hold the thermocouple in the air in the area to be tested.
5.
The meter will display the thermocouple temperature in the main display area.
6.
To change the temperature unit of measure (°C and °F) refer to the Setup Mode section.
Data Hold
To freeze a measurement on the display, press the HOLD key momentarily. The meter will emit a
beep, the reading will hold, and the HOLD display icon will switch on. Press the HOLD key again to
release the display and exit the Data Hold mode returning the meter to the normal operating mode.
