Philips Avalon CTS M2720A, Service Manual

Page: 12 / 110

1 General Information Protective Earth
6
Protective Earth
WARNING
Check each time before use that the system is in perfect working order and the base station is properly
grounded.
This equipment is intended for use only within healthcare facilities. It is not suitable for use in domestic
establishments and in establishments directly connected to a low voltage power supply network, which
supplies buildings used for domestic purposes.
Do not use additional AC mains extension cords or multiple portable socket-outlets. If a multiple portable
socket-outlet without a separation transformer is used, the interruption of its protective earthing may
result in enclosure leakage currents equal to the sum of the individual earth leakage currents.
To protect hospital personnel and the patient, the cabinet must be grounded. Accordingly, the base
station is equipped with a 3-wire power cable which grounds it to the power line ground when plugged
into an appropriate 3-wire receptacle. Do not use a 3-wire to 2-wire adapter with the base station. Any
interruption of the protective earth grounding will cause a potential shock hazard that could result in
serious personal injury.
Whenever it is likely that the protection has been impaired, the base station must be made inoperative and
be secured against any unintended operation.
The patient cable must be positioned so that it does not come into contact with any other electrical
equipment.
Before operation, make sure that the base station is free from condensation. This can form when
equipment is moved from one building to another, and is exposed to moisture and differences in
temperature.
Environment
Before operation, make sure that the base station is free from condensation. This can form when
equipment is moved from one building to another, and is exposed to moisture and differences in
temperature.
Use the system in an environment which is reasonably free from vibration, dust, corrosive or explosive
gases, extremes of temperature, humidity, and so forth. It operates within specifications at ambient
temperatures between 0°C and +45°C/32°F and +113°F. Ambient temperatures that exceed these limits
can affect the accuracy of the system, the transmitter radio frequency transmission, and can damage the
components and circuits.
The system can be stored at ambient temperatures between -20°C and +60°C/-4°F and +158°F.
The transducers are watertight to a depth of 0.5 meter/1.64 feet (rated IP 68).
The base station is protected against vertically falling water drops only (rated IP X1 according to IEC 60529).
General Description
Refer to the Instructions for Use for operating information for the base station and the transducers. It
includes descriptions of the installation and setup of the system and modes of operation.