GE Corometrics 170 Series, Operator'S Manual

Page: 109 / 112

Revision D 170 Series Monitor 11-3
2003023-001
Technical Specifications: Operating Modes
Operating Modes
Table 11-2. Operating Mode Specifications
FECG Mode
Technique:
Heart Rate Counting Range:
Heart Rate Resolution:
Artifact Elimination:
Countable Input Signal Range:
Offset Voltage Tolerance (Differential):
Maximum Common Mode Voltage:
Common Mode Rejection:
Balanced:
Unbalanced 5k
Ω RA or LA:
Input Impedance:
Differential:
Common Mode:
Mains Frequency Rejection:
Leakage Current:
Isolation, Mains-to-Patient:
Peak detecting, beat-to-beat cardiotachometer
30–240 BPM
1 BPM
Service selectable, ±25 BPM artifact rejection
15 µV to 2 mV peak-to-peak
±300 mVdc maximum
20 V peak-to-peak
> 120 dB at mains frequency, with patient cable
> 110 dB at mains frequency
> 10 M Ω
> 20 M Ω
> 40 dB
Complies with EN60601.1 and/or EN60601.1.1 harmonized national standard
> 5656 Vdc
Ultrasound Mode
Technique:
Transducer Type:
Pulse Repetition Frequency:
Pulse Duration:
Transmitter Frequency:
Spatial-Average Temporal Average
Intensity:
Focal 20 dB Beam Area:
Peak Instantaneous Intensity:
Heart Rate Counting Range:
Leakage Current:
Isolation
a
, Mains-to-Patient:
a
The ultrasound connector is isolated for the primary ultrasound channel (combi-connector) on Model 174 Monitors only
.
Pulsed Doppler with autocorrelation processing
9-crystal
2 kHz (all modes)
92 µs
1.151 MHz
Isata< 5 mW/cm
2
16.6 cm
2
, at a range = 7 cm
1.8 mW/cm
2
50–210 BPM
Complies with EN60601.1 and/or EN60601.1.1 harmonized national standard
> 5656 Vdc
a
Uterine Activity Mode
Range:
Resolution:
Bandwidth:
Excitation Voltage:
Zero Set Temperature Drift:
Leakage Current:
Isolation
b
, Mains-to-Patient:
b
The uterine activity connector is isolated on Model 173 and 174 Monitors only (units equipped with IUP).
Strain Gauge Tocotransducer
0–100 mmHg 0–100 relative units
1 mmHg 1 relative unit
dc to 3 Hz dc to 0.5 Hz
+4.0 Vdc +4.0 Vdc
< 0.1 mmHg/°C (0.013 kPa/°C), excluding transducer
Complies with EN60601.1 and/or EN60601.1.1 harmonized national standard
> 5656 Vdc
b