Siemens MAGNETOM Avanto Operator's Manual page 90

4 Physiological imaging
Charging station
LEDs during charging
90
(A) Charging station PMU version 1
(B) Charging station PMU version 2
Both the PERU and the PPU are supplied with power via rechargeable
batteries. All other components of the PMU are supplied by system-
internal voltage sources. The charging station is installed separately
near the syngo Acquisition Workplace and is used for storing both
units.
The batteries should not be fully discharged before recharging them.
The maximum charging time is approx. 3 hours. After being fully
charged, the operating hours for the units cover approximately 12
hours for PMU version 1 and 24 hours for PMU version 2.
To charge a unit, it must be placed firmly in the charging station. The
PERU and PPU can be charged together or separately in the charging
station. PMU version 1: The yellow LED lights when the unit is
positioned correctly and the red LED stops flashing. PMU version 2:
The red LED goes out when the unit is positioned correctly and the
green LEDs flash.

Use only the charger included with delivery. Charging the units
with non-Siemens equipment may destroy the PERU and PPU.
If the rechargeable batteries can no longer be properly charged,
please contact Siemens Service, as the rechargeable batteries can
only be replaced by Siemens.
A second set of sensors with charging station may be useful in

hospitals or radiology facilities, because one PPU and PERU can
be permanently ready for operation, while a second PPU and
PERU are being charged.
PMU version 1: The red LED stops flashing when the unit is positioned
correctly in the charging station. While charging, the yellow LED
lights permanently. If the battery is fully charged the yellow LED goes
out.
( Page 92 Control LEDs (PMU version 2))
Print No. MR-01501G.621.02.02.02
MR System | Operator Manual