Page 1.3
Chapter 1
Operating Elements
SCHILLER AT-2plus 6-Channel ECG Unit
SERVICE HANDBOOK Issue d May 2002
Location & Power
Location
Do not keep or operate the apparatus in a wet, moist, or dusty environment. Also, avoid exposure
to direct sunlight or heat from other sources. Do not allow the unit to come into contact with
acidic vapours or liquids, as such contact may cause irreparable damage. The unit should not be
placed near X-ray or diathermy units, large transformers or motors. The unit must be placed on a
flat surface and must not be operated in areas where there is any danger of explosion.
Power Supply
The mains connection is on the rear of the unit. The mains indicator lamp on the keyboard is
always lit when the unit is connected to the mains supply. The unit can either be operated from
the mains supply or from the built-in rechargeable battery. The power source isa indicted on the
top line of the LCD.
R L F C1 C2
C3 C4 C5 C6
HR: 76/min
Wed 20-AUG-96 18:20:21
Power Indication
When mains is connected a mains symbol is displayed (as shown above). When the unit is
running on battery power a battery symbol is displayed:
When battery capacity is limited, the battery symbol flashes on and off.
To recharge the battery, connect the apparatus to the mains supply by means of the supplied
power cable. A totally discharged battery needs less than 15 hours to be fully recharged (60% in
less than 3 hours, 90% in less than 7 hours). A fully charged battery gives approximately 4 hours
of normal use. The unit can remain connected to the mains supply without any danger of damage
to either the battery or the unit.
Switching On and Off
The CARDIOVIT AT-2
plus
is switched on with the green ON key
and off by means of the red OFF key
The unit is automatically switched off after 5 minutes (30 seconds if battery capacity is limited) if
no key is pressed and the patient cable is not connected.
Potential Equalisation
If the AT-2
plus
is used in conjunction with other patient connected equipment, we recommend
that the potential equalisation stud on the rear of the unit is connected to the hospital/ building
common ground with the yellow/green ground cable (Part-no. 2.310005). When working from
an emergency vehicle, the vehicle common ground can be used.
