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5 Technical Description
5.6 Mounting
To mount the pyrometer, a threaded drilling M12 is located on the underside of the unit. The pyrometer can be
attached to different mountings.
We recommend to use the retaining bolt supplied with the pyrometer or the optional available ball and socket
mounting support with clamp or thread. This mounting plate ensures secure assembly of the pyrometer (for
order data see Accessories (section 3.3) at page 5).
5.7 Emissivity
The emissivity is the relationship between infrared energy radiated from an object and the radiation energy of
a perfect emitter (black emitter) at the same temperature and the same spectral range.
The emissivity is material-dependent and of a considerable size in order to be able to determine the temper-
ature of an object accurately without contact. The emissivity of the object being measured must therefore be
known and be adjusted at the pyrometer.
Typical emissivities for various materials are available on our homepage at www.kleiberinfrared.com or in rele-
vant literature.
The instrument is calibrated at black body radiation ( = 1,00). Real objects have an emissivity less than
1.00. This difference can be adjusted with changing the emissivity value from the pyrometer.
How to find out correct emissivity:
1. Measure the real temperature of measuring object with a contact thermometer e.g. thermocouple or
resistance probes.
2. Align the pyrometer at the measuring object and adjust the emissivity until both devices (pyrometer and
contact thermometer) show the same temperature value.
After adjusting the emissivity factor through a correlation measurement you can now measure
temperatures for the calibrated temperature range at an accuracy mentioned in the technical data.
IMPORTANT:
Please pay attention if you take over table values of emissivity to give the value of emissivity factor at a
certain wave length. Adjusting emissivity following table values is not as exactly as adjusting following
a comparing measurement.
12
=
KS / KG / KGA 740
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