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Temperature measurement is carried out with a contact-free infrared
sensor (IR). The sensor is placed on top of the instrument, next to the
probe transducer.
The window of the sensor is covered with a filter for infrared radiation.
If the window is covered or smudged with some other material, e.g.
water, the sensor will not be able to detect the correct amount of ra-
diation and the instrument will therefore give an incorrect reading.
A polished metal surface emits less radiation than a painted surface.
If you want to measure on a polished metal surface, you may have
to attach a paper label or paint the surface to get a correct reading.
Also, bear in mind that a blank surface may reflect heat radiation from
surrounding objects.
Emissivity of some common materials:
Brass, polished
0,03
Brass, oxidized
0,61
Copper, roughly polished
0,07
Copper, black, oxidized
0,78
Paint, varnish, black
0,96
Aluminum foil
0,09
Lead, oxidized
0,43
Iron, corroded
0,78
Iron, oxidized
0,84
The viewing angle of the sensor is 60 degrees, giving a measuring
area of 36 mm diameter at the distance of the probe tip and 115 mm
at a 10 cm distance.
To measure temperature:
From the
Main
display, press the LEFT arrow key to enter
Temperature
mode. Hold the probe tip against the surface you wish to measure
and press the measuring key to get a temperature reading. For most
accurate results, take two consecutive readings a few seconds apart.
Measurement will continue as long as the measurement key, or the
probe tip, is being pressed.
To return to the
Main
menu, press the LEFT arrow key.
NOTE: If you are using an optional transducer for shock pulse
measurement, measure temperature manually
(see instructions in
paragraph above).
Machine surface temperature is also measured automatically when an
SPM measurement is made:
To see the temperature reading after an SPM measurement, use
LEFT/RIGHT arrow keys to activate the
Return
icon in the
Bearing
display, then press the UP arrow key to enter the
Main
display. Press
the LEFT arrow key to enter
Temperature
mode and see the reading.
The value presented is always the latest reading, whether automati-
cally or manually (see above) measured. To return to the
Main
display,
press the LEFT arrow key.
Temperature Measurement
Measurement area
Temperature measurement
Measure
Measurement
indicator
Back/
Return