Service And Maintenance; Changing The Batteries - testo 835 Bedienungsanleitung

20 9. Connecting to PC software
8.4 Details: Alarm
The alarm function can be switched on/off and alarm thresholds can be set for the
measurement channels Infrared (measured), Thermocouple (measured), Dewpoint
distance (only H1, calculated) and Surface moisture (only H1, calculated).
- The Alarm function is opened.
1 Select Measurement channel and enable by pressing the joystick.
2 Switch the alarm function on/off for the selected measurement channel: joystick
up/down.
3 Move the joystick to the right and set limit value(s): joystick up/down.
4 Save entries by pressing the joystick.
9. Connecting to PC software
The measuring instrument can be connected to a PC via the USB port. With testo
easyClimate software (download via www.testo.com/download-center, licence key to
activate the software: see back of this instruction manual), instrument configurations
can be carried out on the PC and measurement data saved on the instrument can be
transferred to the PC.
Connect measuring instruments to a PC via USB cable.
- The instrument switches to slave mode. All instrument control keys are disabled.
For further information, please refer to the instruction manual for testo EasyClimate
software.

10. Service and maintenance

10.1 Changing the batteries

1 Open the battery compartment: open up the
cover.
2 Remove used batteries and insert new ones.
Observe the polarity!
3 Close the battery compartment: close the cover
again.