LH810 is an external plug and play sidestream co2 sensor. It does not occupy any host space and connects to host just with one eight-pin plug. LH800 features cutting-edge technology for measurement of instantaneous CO2 concentration, respiration rate, end-tidal CO2 concentration, inspired CO2 concentration, inspiration time and expiration time. It is generally used in patient monitor and anesthetic machine. With a sampling rate low to 50 mL/min, it is ideal for use on adult, pediatric and infant patients; patients undergoing procedural sedation; and short- term monitoring of intubated patients.
Technical Specifications
|
Transducer Type |
LH800 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 |
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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 |
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Calibration |
No routine user calibration required |
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Compensation |
Automatic Barometer Pressure 400 - 800 mmHg. User selectable O2 / N2O compensation. |
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Voltage Requirements |
5.0 VDC ±5% |
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Power Consumption |
Less than 1.5 Watts typical. |
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Temperature and Humidity |
Operating: 0o to 40oC, 10 to 90% RH, non-condensing Storage: -40o to 70oC, <90% RH, non-condensing |
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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 |
