10
Care and Maintenance
3
Care and Maintenance
Inspection
The Zmachine should be inspected regularly for damage to the system and accessories. If, at any
time, function or safety is thought to be impaired or any damage to the Zmachine or accessories
has been observed, then the Zmachine device should be taken out of operation and secured
against unintended use. Contact General Sleep for information regarding service and technical
support.
Cleaning
The outer surfaces of the Zmachine may be cleaned as needed. Use a small amount of water or
isopropyl alcohol to dampen a soft cloth to remove fingerprints and dirt. Do not allow any liquid
to enter the case of the Zmachine.
Interference
The Zmachine will continue to operate in the presence of radio frequency magnetic fields (RF)
and during electrostatic discharges according to the requirements specified in IEC/UL 60601-1-2.
The Zmachine employs high sensitivity amplifiers to acquire and analyze very low amplitude
EEG signals. As such, it is possible that there may be some unavoidable interference from radio
frequency magnetic fields, electrostatic discharges and low frequency magnetic fields. This
interference may alter the results from the Zmachine system. Mobile phones, transmitters, power
transformers, motors and similar equipment that generate strong electromagnetic fields should not
be used in close proximity of the Zmachine. Electric blankets should not be used with the
Zmachine.
Although the Zmachine meets the standards for electromagnetic compatibility (IEC/UL 60601-1-
2), the device may cause interference when used in close proximity with sensitive electrical
equipment. It is advised that if interference on sensitive electrical equipment is observed that the
equipment is switched off or moved from the proximity of the Zmachine.
