Measuring - TESTO 425 Mode D'emploi

6.

Measuring

This chapter describes the steps that are required to
perform measurements with the product.
Taking a a m m easurement:
The instrument is switched on and is in measurement
view.
Put the probe in position and read off the readings.
Changing t t he m m easurement c c hannel d d isplay:
To change between displaying the temperature (°C)
and the calculated volumetric flow rate (m
Press
Holding t t he r r eading, d d isplaying t t he m m aximum/minimum
value:
The current reading can be recorded. The maximum and
minimum values (since the instrument was last switched
on) can be displayed.
Press
displayed.
- The following are displayed in turn:
· Hold: the recorded reading
· Max: Maximum value
· Min: Minimum value
· The current reading
Resetting t t he m m aximum/minimum v v alues:
The maximum/minimum values of all channels can be
reset to the current reading.
Press
1
Press and hold
2
- All maximum or minimum values are reset to the
current reading.
.
several times until the desired value is
several times until Max or Min lights up.
(approx. 2s).
6. Measuring 27
3
/h):