Technical Specifications
Transducer Type: Sidestream CO2 sensor
Sample Rate: 50 mL/min, ±10mL/min.
Principle of Operation: Non-dispersive infrared (NDIR) single beam optics, dual wavelength, no moving parts
Initialization Time:
Ø Capnogram displayed in less than 5 seconds
Ø Reaching full specifications within 10 minutes.
CO2 Measure Range:
Ø 0 – 114 mmHg
Ø 0 – 15%
Ø 0 – 15.2kPa
CO2 Resolution:
Ø 0.1 mm Hg 0 to 50 mm Hg
Ø 0.25 mm Hg 50 to 114 mm Hg
CO2 Accuracy:
Ø 0 – 40 mmHg ±2 mmHg
Ø 40 – 114 mmHg ±5% of reading
Respiratory Rate:
Ø Range 2 to 120 Breaths Per Minute (BPM)
Ø Accuracy ±1 breath
Calibration:
No routine user calibration required
Compensation:
Automatic Barometer Pressure 400 – 800 mmHg.
User selectable O2 / N2O compensation.
Voltage Requirements: 5.0 VDC ±5%
Power Consumption: Less than 1.5 Watts typical.
Temperature and Humidity:
Operating: 0º to 40ºC, 10 to 90% RH, non-condensing
Storage: -40º to 70ºC, <90% RH, non-condensing
Interconnection:
Pin out:
1. VA 5.0V
2. Shield Shield
3. DGND Digital return
4. VSRC Unused
5. TxD Serial data from LH800
6. RxD Serial data from Host
7. AGND Analog return
8. SYNC Unused
Data Interface:
Ø RS232, bi-directional, 19200 baud rate, standard N-8-1.
Ø Fully compatible with Respironics LoFlo communication protocol
Data Output:
CO2 gas concentration (mm Hg), End-tidal CO2, Inspired CO2, Respiratory Rate, Automatic barometric pressure compensation.
NOTE: No host
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