Operating instructions

Marquette Hellige GmbH CardioSys / MicroLab V4.X Page 9
Servicing Instructions 227 436 37 Rev. B V1.3
3 Functional description
3.1 Electrical components
These comprise all the components which conduct mains voltage. These are:
• mains input
• power on/off switch
• mains socket for defibrillator
• isolating transformer
• internal power distributer
3.1.1 Mains input
The mains input module comprises an IEC plug, the line filter and a fuse holder for two
fuses.
* 230VT 3.15A (5 x 20)
* 115VT 5A (6.3 x 32)
3.1.2 Power on/off switch
This is a 2-pin power switch which lights up in the ON position.
3.1.3 Mains socket for defibrillator
The defibrillator power supply is tapped off directly behind the mains input. This socket is
designed to be compatible with the mains plug-and-socket systems of different countries
(world-wide marketing) and USA plug-and-socket system for 115V cart (only CardioSys).
3.1.4 Isolating transformer
The instrument has a built-in isolating transformer to observe the ground leakage current
stipulated by the IEC norm. This has a watt rating of approx. 400 VA. Two versions of the
isolating transformer are available.
Version 1: primary for an input voltage of 115V(± 15%) 50/60Hz
secondary for an output voltage of 115V
Version 2: primary for an input voltage of 230V(± 15%) 50/60Hz
secondary for an output voltage of 230V
- constructed acc. to IEC 601-1 and UL 544
- thermosensitive fusing (120°C)