TEFC_A-BA-e-2110
33
11 Maintenance, service and disposal
Before you start any works related to the maintenance, cleaning and
repair, disconnect the device from the operating voltage.
11.1 Cleaning
Do not use any aggressive cleaning agents (solvents etc.), but clean the device with a
cloth and mild soap solution. The liquid must not get inside the device. Wipe with a
dry, soft cloth.
Any loose specimen/powder remains can be removed carefully with a brush or a
handheld vacuum cleaner.
Remove any scattered weighed material immediately.
11.2 Maintenance and service
The device can be operated and maintained solely by the technicians trained and
authorized by KERN.
Disconnect from the mains before opening.
11.3 Disposal
The packaging and the device should be disposed in accordance with the national or
regional law in the location where the device is operated.
12 Error messages
Error message
Explanation
--ol--
Overloading
Err 4
Zeroing range exceeded (upward)
