Main Unit
(Display Unit and PIB mounted together)
Physical Characteristics
- Dimensions (width x depth x height): 16.5 x 5.6 x 13.1 in.
- Weight: 20 lbs
Power
- Operating voltage: 100-240 V
- Line frequency: 50/60 Hz
- Power consumption: 90 VA max, 35 W typ.
Operation environment
- Operating temperature: +50°F to +104°F
- Relative humidity: 30% to 75% non-condensing
- Atmospheric pressure range: 700hPa to 1060 hPa
Transport and storage environment
- Transport (inside packing) or storage (without packing)
- Temperature range: -13°F to +158°F
- Temperature range (max 16 hours): -40°F to +158°F
- Relative humidity range: 10 % to 90 %, no condensation
- Relative humidity range (max 16 h): 10 % to 95 %, incl. condensation
- Atmospheric pressure range: 500 hPa to 1060 hPa
Display
15" 1024x768 TFT LCD Touch screen, with tilt and rotation and brightness control, displaying the following output data:
- Dual Heart Rate: 50-240 bpm (US), 30-240 bpm (FECG)
- T/QRS ratio: -0.30 to +0.90 (FECG)
- Fetal ECG Average with biphasic (BP) ST indication
- Uterine Activity: 0-100 units (external), 0-100 mmHg (internal)
- Dual heart beat and signal quality indications
- Scrolling traces (HR: 50-210 or 30-240 bpm, T/QRS: -0.12 to +0.50, UA: 0-100, BP, time):
- 1, 2 or 3 cm/min, selectable range 5 to 30 minutes live data, scrollable window (up to 25 minutes) over complete recording
- Event Log information: FECG waveform data, operator notes, signal quality
- Realtime FECG signal
- Signal and system status
- Patient name and id
- Easy-to-use touch screen control fields, with expandable control functionality
Audible Indications
- FECG-generated heart beat beep
- US-generated heart sounds
Digital Data Storage
- Integrated flashdisk automatically storing 3000 hours of latest recorded data
- USB Connector for removable USB storage devices, or transfer of digital data to archiving systems (optional)
Recording
The following applies when standard transducers are used.
Fetal ECG Recording
- Maximum electrode potential difference: ±0.75 VDC
- Input range: ±10 mV
- Pre-amplifier bandwidth: 0.05 to 100 Hz (-3dB)
- Sensitivity FHR detection, minimum QRS ampl. 50 μV p-p
- Sensitivity ECG analysis, minimum QRS ampl. 200 μV p-p
- Mains frequency rejection: >40dB
- Beat-to-beat HR detection
- HR range: 30-240 bpm
- HR accuracy: ±1 bpm (up to 180 bpm), ±2 bpm (above 180 bpm)
- 30-beat ECG Averages.
- ECG average T/QRS ratio range: -0.30 to +0.90
- T/QRS accuracy: ±0.02
- Bi phasic ST segment indication: Grade 0, 1, 2 and 3
US Recording
- Centre frequency: 1.0 MHz (US2) and 1.5 MHz (US1)
- Intensity: <20mW/cm2
- HR range: 50-240 bpm
- HR accuracy: ±2 bpm (up to 180 bpm) ;±3 bpm (above 180 bpm)
TOCO Recording
- Max load: 500 g
- Output range: 0-100 units
- Sensitivity: 0.4 units/g (nominal, adjustable)
- Manual output offset: 5 units
- Resolution: 1 unit
- Accuracy: ±20% of display
- Bandwidth: DC to 0.15 Hz (-2dB) (-40 dB at 1Hz)
IUP Recording
- Range: 0-100 mmHg (0-13.33 kPa)
- Resolution: 1 mmHg
- Accuracy: ±5% of display
- Bandwidth: DC to 0.15 Hz (-2dB) (-40 dB at 0.5Hz)
Trolley STAN TR31
Physical Characteristics
- Dimensions (width x depth x height): 22 x 23 x 55 in
- Weight: 46 lbs
- Input mains cable: Removable
Power
- Nominal operating voltage: 100-240 V
- Line frequency: 50/60 Hz
- Max load 10 A
Classification
STAN S31 fetal heart monitor is an FDA approved class III medical device.