Description
Specifications
Physical Weight & Dimensions
- Height: 7 inches (17.8 cm)
- Width: 16.5 inches (41.9 cm)
- Depth: 17 inches (43.2 cm)
- Weight: Approx. 34 lbs (15.5 kg)
Power Requirements
- Voltage: 100/120/220/240 VAC selectable
- Frequency: 50/60 Hz.
- Power consumption: 100 Watts (max)
Direct ECG
- Technique: peak detecting beat-to-beat cardiotachometer.
- Heart rate counting range: 30-240 BPM.
- Heart rate resolution: ±1 BPM.
- Artifact elimination: switch selectable?25 BPM artifact rejection.
- Input signal range differential: 15 µV to 2 mV peak-to-peak (fetal), 100 µV to 2 mV peak-to-peak (maternal)
- Common mode: 20 VDC (max.)
- Preamplifier bandwidth: 1.0 Hz to 100 Hz
- Common mode rejection: >120 dB balance. With patient cable: >110 dB 5k RA or LA unbalance
- Input equivalent noise: < 10 µV peak-to-peak
- Input impendence: differential mode > 10 MO, common mode > 20MO
- Main frequency rejection: >40 dB
- Leakage current: < 10µA at 120 VAC
- Isolation mains to patient connection: >2kV
- Leg plate tester: simulated r-wave at 120 ± 1 BPM
Ultrasound
- Technique: pulsed doppler with autocorrelation processing
- Pulse repetition frequency: 4kHz in single ultrasound mode, 2 kHz in dual ultrasound mode
- Pulse duration: 92 µs
- Center frequency: 1.151 MHz
- Intensity: <10 mW/cm2
- Heart rate counting range: 50-210 BPM
- Leakage current: <10 µA at 120 VAC
Pressure
- Range: 0-100 mmHg
- Tocotransducer: 0-100 relative units (0-120 grams)
- Excitation voltage: +4.0 VDC
- Resolution: 1 mmHg
- Bandwidth: tocotransducer DC to 0.5 Hz, strain gauge DC to 3 Hz
- Zero temperature drift: < 0.1 mmHg/°C (electronics only)
- Leakage current: 10 µA at 120 VAC (transducer isolated)
Recorder
- Uterine activity: chart width: 4 cm, scaling: 25 mmHg/cm (3.33 kPa/cm), range: 0-100 mmHg, resolution: 1 mmHg.
- Chart drive: speeds: 1, 2 and 3 cm/min;
- Heart rate scale: domestic – chart width 7 cm, scaling 30 BPM/cm, range 30-240 BPM, resolution 1 BPM; international: chart width 8 cm, scaling 20 BPM/cm, range 50-210 BPM, resolution 1 BPM