Inserting The Battery / Changing The Battery; Distance And Measuring Spot Size; Distance-To-Spot-Ratio D:s; Degree Of Emission - Trotec MultiMeasure Professional TP9 Manuel D'utilisation

6. Inserting the battery /
Changing the battery
The infrared thermometer requires an alkaline 9V block
battery type NEDA1604, IEC 6LR61 or a battery that is
identical in construction to for operation.
If the voltage of the inserted battery falls below the
required value, the symbol designating "low bat-
tery" lights up on the display. In this case, the battery
should be changed.
To change the battery, please proceed as follows:
Press the release button
open the battery compartment
compartment lid away from the hand grip, as shown in
the illustration. Change the battery for a new one of the
same type and close the battery compartment lid again.
Do not leave any used batteries in the measuring device,
as even leak proof batteries can start to corrode and re-
lease chemicals which can either have an adverse affect
on your health or destroy the device.
Remove the batteries from the device if not used over a
longer period in order to prevent the batteries from leaking
Never leave batteries lying around unattended.
There is a real danger that they can be swallowed
by children. Leaking or damaged batteries can cause
chemical burns to the skin. Do not ever try to recharge a
battery. Never throw into fires.
7. Distance and
measuring spot size

Distance-to-Spot-Ratio D:S

In order to obtain accurate measuring results, the object to
be measured has to be larger than the measuring spot of
the infrared thermometer. The temperature measured is the
mean temperature of the measured area.
The smaller the object to be measured, the shorter the dis-
tance to the infrared thermometer has to be.
The exact size of the measuring spot can be seen in the di-
agram. It is also printed on the device. The object to be
measured should be at least twice the size of the meas-
uring spot.
of the battery compartment and
by folding the battery
Operating manual – English
8.

Degree of emission

The degree of emission is a value which is used to describe
the energy emission characteristics of different materials.
The higher the value, the higher the capability of the ma-
terial to emit its own heat radiation without the influence of
reflection.
Metal surfaces or shiny materials have a low degree of
emission and can therefore only provide inaccurate meas-
uring results. Please be sure to keep this in mind when us-
ing the infrared thermometer.
In order to compensate this phenomenon, the shiny parts
of the surface can covered with matt sticky tape or a coat
of matt black paint.
The device cannot measure through transparent surfaces
like glass, for example. Instead it measures the surface
temperature of the glass surface.
Many organic substances and surfaces have a degree of
emission of aprox. 0.95. You will find a table with the
emission degree values of different types of materials in
chapter 16.
The infrared thermometer has a function (see
chapter 10.2.1) which allows the degree of
emission to be adjusted on a scale from 0.10 to 1.00, in
order to facilitate the accurate measurement of diverse
materials.
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