TESTO 810, Instruction Manual

Page: 18 / 72

Using the product

Switching the instrument on:
> Press .
- Measuring mode is opened.

Switching the display light on:

The instrument is switched on.
> Press .
- The display light goes out automatically if no key is
pressed for 10 seconds.

IR measurements:
Laser radiation! Do not look into the laser beam.
Laser class 2.
To ensure correct readings:
· Keep temperature and humidity sources which may falsify the
measurement (e.g. hands) away from the sensor.
· Keep the lens clean and do not measure with foggy lenses.
· Keep the measuring range (the range between the instrument and the
object being measured) and the surface of the object free of obstacles.
There must be no particles of dust or dirt, no humidity (rain, steam) and
no gases.
· If the ambient temperature changes (change of location, e.g.
measurement indoors/outdoors), the instrument must be allowed to
equalise for aprox. 15 minutes.
· The instrument has a lens (90 % value) of 6:1 (distance : measuring
surface) + Opening diameter of the sensor (10mm / 0.39 in):
Distance Diameter of meas. surface Distance Diameter of meas. surface
10cm 3cm 4 in 1.06 in
60cm 11cm 25 in 4.56 in
100cm 18cm 40 in 7.06 in
200cm 35cm 80 in 13.72 in
> Press and hold .
- flashes in the display. The laser dot marks the centre
of the measuring surface.
- When IR measurement has been completed (release ),
the instrument changes to the
Hold
display view and the
readings are held.
18
Using the product