2.6 SCAN Mode Temperature Measurements
Use this measurement mode for thermal scanning of a target or when
measuring targets located at a distance. The DX is a wide-angle ther-
mal 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 tempera-
ture 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" diameter for 1"
distance from target. Optimize optical alignment, so that the DX
views only the target and does not exceed the measurement area.
6
Summary of Contents for DX SERIES
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