21. SD-Card Slot
The SD slot is used for direct recording data to an external SD memory card with the MEM function.
Note:
For saving data a suitable SD card must be placed in the Card-Slot
In the MEM menu "SD Card" has to be selected as storage location
Readings can be recorded until the SD card is full. Please refer to the chapter "MEM" key
22. Switch for power supply
Toggle the switch to select the voltage, depending on your country location.
Note:
Check the switch setting before using the equipment
Find out local AC voltage before usage if in foreign countries
An incorrect switch position can lead to the destruction of the device
To prevent accidental switch, the switch can be moved only with a suitable tool
23. Serial Number
The serial number sticker on the back of the device identifies the device.
Note:
Never remove the serial number from the case
Enter the serial number in case of complaint
A calibration procedure requires the serial number to identify
24. Fuse holder for power fuse
In the case of an error the fuse may be triggered so the device can’t be turned on again.
Note:
• Replace the fuse only with an identical fuse (0.5A/250V)
• If the fuse is damaged please let the device be technically checked for electrical faults
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