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2.4.2 Temperature Measurement of Moving
Targets
To measure moving targets that are not possible to touch,
use the following procedure:
1. Press and hold the MEASURE button.
2. The display will briefly show [8888].
3. Bring the nosepiece as close as possible to the target,
preferably within 1/32 inch (1 mm). **
4. The display may or may not change, but the "beeping"
sound will indicate that measurements are being
made.
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.
** If the surface is metallic, be sure to mark it as described
in the Measurement Tips section in Chapter Three.
2.4.3 High Temperature Targets
When using the DX™ to measure high temperature targets,
above 100 °F, quickly touch the target's surface -- one sec-
ond is long enough to get an accurate reading.
Follow the procedures described above under 2.4.1
General Operation (see pg. 5). If the DX makes contact
with a hot surface for an extended time (10 seconds or
more) the target will conduct heat. Although this will not
harm the unit, the indicated temperature may be a few
degrees too high. Allow a few minutes between readings
for the nosepiece to cool down and stabilize.
If the DX makes contact with a hot surface and an error
message [HI] shows on the display remove the instrument
from the object immediately.
2.5 MAX Mode Temperature Measurements
Use this measurement mode when making contact with the
target or when the target is large. 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.
2.5.1 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. Best measurements are made
when the DX is in contact with the target.
2. Make sure the MODE switch is on MAX.
3. Point the nosepiece at the target.
4. Press and hold the MEASURE button.
4