TESTO 870 - Image Type Selection; Setting the Temperature Scale

5 Performing the measurement
19
5.4 Image type
This function is only available for the testo 870-2 version.
The display can be switched between infrared image and real image (digital
camera).
1
- Select
Image type
function. For how to proceed: see Getting to know
the menu
, page
11
.

The image type displayed switches alternately between the infrared
image view and real image view.
5.5 Setting the scale
Manual scaling can be activated instead of automatic scaling (continuous
automatic adjustment to the current min./max. values). The scale limits can be
set within the measurement range.
The activated mode is displayed bottom right: automatic scaling, manual
scaling.
Auto-scaling continuously adjusts the scale to the readings presented,
and the colour assigned to a temperature value changes.
In manual scaling fixed limit values are defined, and the colour
assigned to a temperature value is fixed (important for visual image
comparisons).
The scaling affects how the infrared image appears on the display, but
has no effect on the recorded readings.
Setting automatic scaling
1
- Select
Scale
function. For how to proceed: see Getting to know the
menu
, page
11
.
2
- Move the
Joystick
to the left until
Auto
is selected and then press
OK
.

Automatic scaling is activated. is displayed bottom right.
Setting manual scaling
The lower limit value, the temperature range (upper and lower limit value
simultaneously) and the upper limit value can be set.
1
-
Select
Scale
function. For how to proceed see Getting to know the
menu
, page
11
.