Manual

10 Maintenance
86
Cleaning the display
1
If the display is dirty, clean it with a cleaning cloth (e.g. microfibre
cloth).
Cleaning the protective glass
1
Larger dust particles can be removed with a clean optical cleaning
brush (available from specialized photo supplies).
2
Use a lens cleaning cloth for slight contamination. Do not use rubbing
alcohol!
10.4 Firmware update
The current firmware version is available at www.testo.com. In the download
area, you will find the current firmware version for the testo 883.
There are two options available:
• Performing an update using IRSoft or
• Performing an update with the thermal imager
Downloading firmware
1
Download firmware: Firmware-testo-883.exe
2
Unzip file: double-click on the .exe file.

FW_T883_Vx.xx.bin is stored in the selected folder.
10.4.1 Performing an update using IRSoft
10.4.1.1 Preparing the camera

The rechargeable battery is fully charged or the camera is connected to
the mains adapter.
1
Connect the computer to the camera with the USB cable.
2
Switch on the camera.
10.4.1.2 Performing an update

IRSoft is open.
1
Select the "Camera" tab in IRSoft.