User Manual

6 Using the product
39
Before saving an image, ensure that it is focused correctly (in
focus), see Manually focusing the image, page 21. Images that are
not in focus cannot be corrected retroactively!
To obtain precise readings, the emissivity and reflected
temperature must be set correctly, see Set emissivity/reflected
temperature, Seite 32. A subsequent adjustment is possible via
the PC software as required.
With an activated auto scaling, the colour scale is continuously
adapted to the min./max. values of the current measurement
image. The colour that is to be assigned to a specific temperature
thereby changes constantly. To be able to compare multiple
images by means of the colouring, the scaling must be manually
set to fixed values, see Scale... page 29 or must be subsequently
adjusted to uniform values using the PC software.
Depending on the scene temperature, the measuring range
may be undershot or exceeded. In this case, --- or +++ is
shown instead of the readings.
> If this occurs, change the measuring range, see
Measuring range, page 28.
Select the storage location (folder)
1. While an image is frozen (fixed image): Press the left [Folder]
quick select button.
- The Folder dialogue is opened.
To create a new folder, see Create new folder, Seite 29.
2. Select the desired folder with the joystick and open with [OK].
- The folder name of the opened folder is displayed in the
header.
3. Press left [Apply] quick select button to select the opened
folder.
Recording/playing audio comments (testo 875-2i only)
It is only possible to record an audio comment for frozen images. It
is possible to play audio comments with frozen and saved pictures.
1. While an image is frozen (fixed image): Press the right [Audio]
quick select button.
- The Audio dialogue is opened.
2. Select the desired function with the joystick and confirm with
[OK].
• Record audio comments:
1. Start recording: Press [].
2. Stop recording: Press [].
> Continue recording: Press [] again.