Philips M1351A System, Frequency, Repetition Rate, Ultrasound Intensity, Signal Range, Mechanism

Monitor

Ultrasound Mode	System:	Pulsed Doppler oscillation.
	Frequency:	998.4 kHz.
	Repetition Rate:	3.2 kHz.
	Ultrasound Intensity:	1.5mW/cm² average for each of the seven active surfaces.
DECG and MECG See Specifications for Transducers and Cables on page 17.
Mode
External Labor	Signal Range:	0 to 127 units.
	Offset Compensation:	±200 units.
Internal Labor	Signal Range:	-99 to +127 mmHg.
	Patient Leakage Current:	≤ 10 µArms.
	Sensitivity:	40 µV/V/mmHg (M1348A).
		5 µV/V/mmHg (M1334A and CPJ840J5).
Recorder	Mechanism:	3-channel, high-resolution (8 dots/mm) thermal array recorder
		with paper-end detection.
	Paper Speeds:	1, 2 or 3 cm/min.
	Recording Time Per Pack
	of Paper:	1 cm/min (25 h).
		2 cm/min (12 h 30 min).
		3 cm/min (8 h 20 min).
	Paper Advance Speed:	24 cm/min (with automatic stop at the paper-end mark).
	Annotation:	Time of day, date, and paper speed are printed automatically
		every ten minutes. Monitoring mode is printed with every
		alteration of parameter.
	Paper:	Fanfold paper with numbered pages.
	FHR Scale:	USA: 30 to 240 bpm @ 30 bpm/cm.
		Other countries: 50 to 210 bpm @ 20 bpm/cm.
	Labor Scale:	0 to 100 units @ 25 units/cm.

Chapter 2 Technical Specifications 15