Operating Modes - GE Corometrics 170 Series Service Manual

Operating Modes

FECG Mode
Technique:
Heart Rate Counting Range:
Heart Rate Resolution:
Artifact Elimination:
Countable Input Signal Range:
Offset Voltage Tolerance (Differential):
Maximum Common Mode Voltage:
Preamplifier Bandwidth:
Common Mode Rejection:
Balanced:
Unbalanced 5kΩ RA or LA:
Input Equivalent Noise:
Input Impedance:
Differential:
Common Mode:
Mains Frequency Rejection:
Leakage Current:
Isolation, Mains-to-Patient:
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:
Peak-Negative Acoustic Pressure:
Heart Rate Counting Range:
Leakage Current:
Uterine Activity Mode
Range:
Resolution:
Bandwidth:
Excitation Voltage:
Zero Set Temperature Drift:
Leakage Current:
Revision C
Specifications: Operating Modes
Table 10-2. Operating Mode Specifications
Peak detecting, beat-to-beat cardiotachometer
30–240 BPM
±1 BPM
Selectable, ±25 BPM artifact rejection
15 µV to 2 mV peak-to-peak
±300 mVdc maximum
20 V peak-to-peak
1–100 Hz
> 120 dB at mains frequency, with patient cable
> 110 dB at mains frequency
< 10 µV peak-to-peak
> 10 MΩ
> 20 MΩ
> 40 dB
< 60 µA at 254 VAC, electrically isolated
> 4 kVAC
Pulsed Doppler with autocorrelation processing
9-crystal
2 kHz (all modes)
92 µs
1.151 MHz
2
Isata < 5 mW/cm
2
16.6 cm , at a range = 7 cm
2
1.8 mW/cm
p < 10.0 kPa
50–210 BPM
Complies with IEC 601.1 and/or IEC 601.1.1 harmonized national standard
Strain Gauge
0–100 mmHg
1 mmHg
dc to 3Hz
+4.0 Vdc
< 0.1 mmHg/°C (0.013 kPa/°C), excluding transducer
Complies with IEC 601.1 and/or IEC 601.1.1 harmonized national standard
170 Series Monitor
2000947-004
Tocotransducer
0–100 relative units
1 relative unit
dc to 0.5 Hz
10-3