Operation Manual
GMC-I Messtechnik GmbH 69
Measurement with Sensors via USB Port
Connection
Up to four USB sensors can be connected simultaneously. 
USB sensors with high current consumption ratings should be 
connected to the socket labeled 500 mA.
Note: Current consumed by sensors which are connected to the 
USB ports must be taken into consideration.
If possible, disconnect sensors from the USB ports when they are 
not actually in use.
Activating the USB Devices Menu
Press the ESC or the MENU key in order to allow for the selection of 
USB sensors in the main menu. The “USB directory” icon is 
displayed (see screenshot above).
After selecting the USB directory, the softkeys for all connected 
USB sensors are displayed (see screenshot above).
The softkeys for the sensors which are included in the USB 
devices directory are activated in the same way as the softkeys 
for the individual measurements in the main menu.










