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5. Record the temperature from the display.
6. Release the MEASURE button. The last reading will
remain locked on the display for 10 seconds after
releasing the button.
2.6 SCAN Mode Temperature Measurements
Use this measurement mode for thermal scanning of a tar-
get or when measuring targets located at a distance. The
DX is a wide-angle thermal scanner with a fixed emissivity
of 0.9. The target's temperature is continuously displayed
and updated 10 times per second for as long as you hold
the MEASURE button down.
The DX displays the average temperature of everything
within the sensor's field of view measurement area. The
size of the measuring area depends on the distance of the
device from the target. The DX has a 1:1 field of view,
which
means that this unit will measure a 1"diameter target area
when the device is 1" from the target.
2.6.1 General Operation
For continuous temperature measurement of a target or for
temperature measurement at a distance, use the following
procedure.
1. Determine the appropriate measurement distance from
your desired target.
2. Make sure the MODE switch is on SCAN.
3. Point the nosepiece at the target.
4. Press and hold the MEASURE button.
5. Record the temperature from the display.
6. Release the MEASURE button. The last reading will
remain locked on the display for 10 seconds after
releasing the button.
Chapter Three - Measurement Tips
3.1 Optimizing Target Area Measurements
When performing a continuous thermal scan of a target, or
measuring a target located at a distance, proper target
alignment will help assure accurate results. Since the DX's
sensor measurement area is fixed at a field of view of 1 to
1, it is important to properly determine the best measuring
distance from the target, to optimize the reading. A field of
view of 1 to 1 means that the DX’s viewing area is 1" diam-
eter for 1" distance from target. Optimize optical alignment,
so that the DX views only the target and does not overlap
the measurement area. See Figure below for examples of
proper optical alignment.
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