GE Marquette MAC 1200 Operator's Manual page 56
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Also See for Marquette MAC 1200:
- Operator's manual (200 pages) ,
- Service manual (151 pages) ,
- Servicing instructions (96 pages)
Table of Contents
Automatic functions
They assist and facilitate operation by
• automatic control of lead selection, paper feed,
calibration (configurable)
• report formatting (configurable)
• automatic baseline adjustment
• anti-drift system (cubic spline) compensating
for polarization voltage fluctuations
(configurable)
Detection of pacer pulses
• pulse length between 0.1 and 2.5 ms
• pacer pulse marker independent of pulse
polarity
• pulse amplitude between ± 5 mV and ± 700 mV
Heart rate indication
derivation of the heart rate from all ECG signals
• display range between 30 and 300 bpm
• display update with every heart beat, maximum
every 2 seconds
Signal inputs
isolated patient signal input, IEC type CF, high-
voltage protection for all lead connections and
neutral electrode, interference compensation via
neutral electrode, monitoring for open leads
• electrode connections for RA, LA, LL, LA, Vl
to V6
• input impedance for differential signals
between any two electrode connections
> 10 MΩ at 10 Hz
• input impedance for common-mode signals
referred to neutral electrode > 50 MΩ up to
60 Hz
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Technical Specifications
• dynamic range for differential signals between
any two electrode connections for AC voltage
±10 mV, for superimposed DC voltage
(polarization voltage) ±600 mV
• dynamic range for common-mode signals
referred to neutral electrode ±l V, referred to
chassis 263 V AC (rms)
• quiescent input current via any electrode
connection for l kΩ termination referred to
neutral electrode < 50 nA
• patient leakage current (rms values) according
to IEC, class CF: in normal condition < 10 µA,
in single-fault condition (e.g. patient in contact
with line voltage) < 20 µA
• non-destructive range for lead-electrode
connections and the neutral electrode
connection referred to neutral electrode ±50 V,
referred to chassis ±1500 V
• pulse voltage resistance of all lead electrode
connections and of the neutral electrode
connection referred to chassis (either polarity,
e.g. defibrillation) 5000 V
• monitoring of each electrode for open leads:
RA, LA, LL, RL, Vl, V2, V3, V4, V5, V6
audio signal at printer start
Data interface
one serial RS232 interface for exchange of data
with suitable external devices and software
handshake
RS232 interface (standard V.24 interface):
• input voltage range. ± 15V max.
• output voltage range ±5 V min.
• interface protected from electrostatic discharge
for ±10 kV max.
MAC® 1200
227 492 04-C
Table of Contents
