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Corometrics 128 Fetal Monitor - Refurbished

(800) 462-8195

Description

The Corometrics 128 maternal/fetal monitor offers the ability to address every monitoring need for both the mother and the fetus. Other features of the 128 are dual ultrasound, FECG, uterine activity, maternal NIBP and SPO2.

Specifications

Ultrasound Mode

  • Technique: pulse Doppler with autocorrelation processing.
  • Transducer type: 9-crystal.
  • Pulse reception frequency: 4 kHz single ultrasound mode, 2 kHz dual ultrasound mode
  • Pulse duration: 92 µs
  • Transmitter frequency: 1.151 MHz
  • Intensity: <5mW/cm2
  • Heart rate counting range: 50-210 BPM
  • Leakage current: <10 µA at 120-240 VAC, isolated by transducer

FECG Mode

  • Technique: peak detecting, beat-to-beat cardiotachometer.
  • Heart rate counting range: 30-240 BPM
  • Heart rate resolution: ±1BPM
  • Artifact elimination: switch selectable, ±25 BPM artifact rejection
  • Countable input signal range: 15 µV to 2mV peak-to-peak.
  • Offset voltage tolerance (differential): ±300 mVDC maximum
  • Maximum common mode voltage: 20V peak-to-peak
  • Preamplifier bandwidth: 1-100 Hz
  • Common mode rejection: balanced > 120 dB at mains frequency, with patient cable, unbalanced = 5kΩRA or La: >110 dB at mains frequency
  • Input equivalent noise: <10µV peak-to-peak
  • Input impedance: differential > 10 MΩ, common mode > 20 MΩ
  • Mains frequency rejection: > 40 dB
  • Leakage current: < 60µA at 254 VAC, electrically isolated
  • Isolation, mains-to-patient: >4kVAC
  • Leg plate tester jack: simulated r-wave at 120± 1 BPM

Fetal Alarms (for Ultrasound or FECG Modes)

  • Audio: alternating 1.5 second chimes (773 Hz and 523 Hz).
  • Visual: flashing heart rate numeric
  • Limits: user selectable high and low fetal heart rate
  • Technical: signal quality
  • Tachycardia response time: 5 minutes at 100% limit violation
  • Bradycardia response time: 30 seconds at 100% limit violation
  • Signal quality response time: 100% signal loss - 1.25 minutes, 70% signal loss - 5 minutes, 65% signal loss - 10 minutes