GE Medical Systems MAC 1200, Operator'S Manual, Page: 35 / 180

Revision B MAC 1200 3-3
2012250-022
Operating and Performance Tests: Power Supply
Power Supply
Indicators
The units are powered from the power line or from the rechargeable
battery.
The battery charges automatically when the unit is connected to the
power line and the green indicator 2 is illuminated as shown above. It is
not necessary to switch on the device for charging. To ensure that the
battery is always fully charged, leave the electrocardiograph connected to
the power line whenever possible. The battery regains its full capacity
after being connected to the power line for four hours.
Indicator 1 is illuminated when the battery needs to be charged. The unit
can also be set up to emit an additional audio signal when the battery
requires charging.
With a full battery, about 50 ECGs (1 page each) can be recorded in the
12 Lead mode. When its capacity drops to about 25 recordings, the
battery is used up and must be replaced by a service specialist.
127(
To prolong the battery life, fully discharge the battery at least once
per month (by operating the electrocardiograph on battery power).
127(
In standby mode, a fully charged battery is drained within
approximately 4 hours. Therefore, when operating the device on
battery power, be sure to turn it off when it is not in use.
N
<
M
>
L
)
X
K
(
J
%
U
7
I
8
O
9
P
0
start
stop
arrhy
pat
info
store/
retrieve
lead
copy setup
gain
format/
speed
muscle
filter
12
6
standby battery low
106A
Indicator 2 Indicator 1