Safety

The  MD900F  Series complies with these regulations and standards

IEC 60601-1,IEC 60601-1-2

FHR measurement:
Measuring Method Ultrasonic Doppler
Measuring scope 30～240BPM
Measuring Error Not More Than±1BPM
Ultrasonic Working Frequency 2.0MHz
Ultrasonic Working Mode Pulse Diving Wave
Ultrasonic Output Intension 5mW/cm2
Display Instant FHR digital display
HR Trace 50～240BPM
Uterine Contractions Measurement:
Measuring Method External Measuring Method
Measuring Range 0～1000g
Non-linear Error士5%
Display 0～255% unit digital display
OP trace 0～100 unit
FM Record Manual/automatic FM recording

hardware configuration
Display Screen: 130mm×36mm，320×240 one-coloured dot matrix LCD screen
Printer and printing paper: Thermal dot matrix printer
Folding thermal printing paper, 112 mm in width, 15m in length
Size and weight Incorporate-structured device. The size and weight for a whole machine in storage and transportation are:
Size length X width X height 290mmX230mmX86mm
Weight 3kg

Operation environment
Operatinging power
Voltage: AC 220V±10%
Frequency 50Hz
Rated power 30W
Running environment
Temperature +5~+45 ℃
Relative humidity ≤90%
Atmosphere pressure 86~106 KPa.
Saving Environment
Temperature-10~-40℃
Relative humidity ≤80%
Without caustic gas, good ventilation

Other paremeters
FM Record Manual control button sign
Date communication interface: date transmission distance is 2000m.
Team net mode and submachine amount: chief wire data transmission mode
500 submachine at most
Printing paper skipping speed: 1, 2,3 cm/min, three gears adjustable.
Printing: Real-time recording of FHR, OP traces and FM signals
Can stop printing at set time automatically
Alarm: FHR alarm
Lower limit 80~130 adjustable
Upper limit 130~190 adjustable
Alarm triggering time(the time from FHR starting exceeding the limit to starting alarming ) ＜2s
Alarm frequency 1 - 60 seconds adjustable.
Probe deviating alarm Triggering time < 5s

Length of probe line 1.5m - 2m