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Power Supply
The NARKOMED 3 is equipped with a
central power supply for the ventilator,
alarm system, and monitoring system. The
power of each monitor is individually
regulated to prevent voltage fluctuations in
one
monitor
from
performance of the other monitors.
The NARKOMED 3 must be plugged into
an AC outlet when in use.
Power Cord
A fifteen foot cord with a 3-prong hospital
grade
plug
is
supplied
NARKOMED 3. The allowable input
voltage range is from 90 to 130 VAC at 50
or 60 Hz. Excess cable is to be stored on
the cord wrap at the rear of the
NARKOMED 3. When unplugging the
power cord be sure to pull the plug, not the
cord.
Hospital Grade Convenience Receptacles
The NARKOMED 3 is equipped with four
convenience receptacles. The receptacles
are "active" whenever the NARKOMED 3
is plugged into an outlet, regardless if the
machine is turned on. They are mounted
on the upper rear of the anesthesia
machine (see Figure 2). The total current
for devices plugged into the receptacles
must not exceed 5 amps. A 5 amp circuit
breaker protects the convenience receptacle
circuit. This circuit also incorporates an
EMI filter, which minimizes interference to
the anesthesia machine from devices
plugged into the convenience receptacles.
NOTE:
Devices
convenience receptacles contribute to the
anesthesia system's total leakage current.
This total leakage current must not exceed
100 micro amps.
influencing
the
with
the
plugged
into
the
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240 Volt Power Supply (Optional)
The NARKOMED 3 can be equipped with
an optional 240 VAC power supply. A 4.5
meter cable supplies the AC power. The
allowable input voltage range is from 200
to 260 VAC at 50 or 60 Hz. The 240 VAC
power supply does not include convenience
receptacles. A pilot light replaces the
circuit
breaker
for
receptacles; it illuminates when AC power
is supplied to the NARKOMED 3.
Backup Battery System
The backup battery system consists of a
rechargeable 12 volt battery (13 amp-hour,
sealed lead-acid) and a built-in battery
charging system. The battery and charging
system are not user-serviceable and are
located in the bottom of the machine's
frame.
Although most hospitals have emergency
generators to provide AC power when line
power fails, delays may be encountered
before generator power comes on line. The
backup
battery
system
provides power during the interim between
line power failure and the activation of the
hospital's
emergency
backup battery would also provide power if
the anesthesia machine's power cord is ac-
cidentally unplugged during a case.
When the hospital's emergency generator
comes on line (or when a disconnected
power
cord
is
NARKOMED 3 automatically switches
back to AC power and recharges its
battery. The battery charging system will
charge the battery any time that the power
cord is connected to an active AC power
source. The charger can recharge a fully
discharged battery in approximately 16
hours.
POWER SUPPLY
the
convenience
automatically
generator.
The
reconnected),
the
23
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