Fnirsi DS215H Benutzerhandbuch Seite 199

Solution:
●Check whether the signal generator is turned on and make sure the settings are correct (such as
frequency, amplitude, duty cycle).
●If the settings are correct and the signal cannot be output, try restarting the device.
●If the fault persists, the signal generator may need to be repaired or replaced.
●Check whether the interface hole is inserted correctly.
7. MAINTENANCE AND CARE
Cleaning the outside of the device:
Frequency: Clean once a month, depending on the usage environment.
Method: Use a soft cloth to gently wipe the surface of the device. Avoid using chemical cleaners,
especially those containing alcohol or strong acids or alkalis, to avoid damaging the casing or
screen.
51