GE MAC 1200

GE Medical Systems MAC 1200 V 1.2 Page 66
Information Technologies 227 492 21 RevF
Membrane keypad
Pushbuitons with tactile feedback
e function keys for all routine operations
e alphanumeric keyboard for entry of text
Display
graphics display with 24 x 40 characters, contrast adjustment
resolution of 320 x 240 pixels with display backlighting
Indicators (LED’s)
For mains power, battery status and start/stop function
Automatic functions
They assist and facilitate operation by
e automatic control of lead selection, paper feed, calibration (configurable)
e report formatting (configurable)
e automatic baseline adjustment
e anti-drift system (cubic spline) compensating for polarization voltage fluctuations (configurable)
Detection of pacer pulses
e pulse length between 0.1 and 2.5 ms
e pacer pulse marker independent of pulse polarity
e pulse amplitude between + 5 mV and + 700 mV
Heart rate indication
derivation of the heart rate from all ECG signals
e display range between 30 and 300 bpm
e 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
e electrode connections for RA, LA, LL, LA, VI to V6