Operating Modes - GE Corometrics 170 Series Operator's Manual

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 5kΩ RA or LA:

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:

Heart Rate Counting Range:

Leakage Current:

a

Isolation

, Mains-to-Patient:

Uterine Activity Mode

Range:

Resolution:

Bandwidth:

Excitation Voltage:

Zero Set Temperature Drift:

Leakage Current:

b

Isolation

, Mains-to-Patient:

a

The ultrasound connector is isolated for the primary ultrasound channel (combi-connector) on Model 174 Monitors only

b

The uterine activity connector is isolated on Model 173 and 174 Monitors only (units equipped with IUP).

Revision D

Technical Specifications: Operating Modes

Table 11-2. Operating Mode Specifications

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 MΩ

> 20 MΩ

> 40 dB

Complies with EN60601.1 and/or EN60601.1.1 harmonized national standard

> 5656 Vdc

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

50–210 BPM

Complies with EN60601.1 and/or EN60601.1.1 harmonized national standard

a

> 5656 Vdc

Strain Gauge

0–100 mmHg

1 mmHg

dc to 3 Hz

+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

b

> 5656 Vdc

170 Series Monitor

2003023-001

Tocotransducer

0–100 relative units

1 relative unit

dc to 0.5 Hz

+4.0 Vdc

.

11-3