LH600 - Internal EtCO2 Module
Category: EtCO2 Sensor  Publish Time: 2012-09-24 09:35 
The LH600 CO2 sensor is the ideal low sampling-rate capnography solution for your patient monitoring system. LH600 can show an accurate capnogram with all respiration rates up to 120 breaths per minute. Cutting-edge technology enables LH600 to provide accurate measurement of instantaneous CO2 concentration, respiration rate, end-tidal CO2, inspired CO2, inspiration time and expiration time. With a sampling-rate low to 50 mL/min, LH600 is ideal for use on adult, pediatric and infant patients; patients undergoing procedural sedation; and short- term monitoring of intubated patients.
LH600 - Internal EtCO2 Module

 Model:LH600

Product Introduction:

The LH600 CO2 sensor is the ideal low sampling-rate capnography solution for your patient monitoring system. LH600 can show an accurate capnogram with all respiration rates up to 120 breaths per minute. Cutting-edge technology enables LH600 to provide accurate measurement of instantaneous CO2 concentration, respiration rate, end-tidal CO2, inspired CO2, inspiration time and expiration time. With a sampling-rate low to 50 mL/min, LH600 is ideal for use on adult, pediatric and infant patients; patients undergoing procedural sedation; and short- term monitoring of intubated patients.

 

 

 

 

Product Features

  • State-of-the-art Non-dispersive infrared (NDIR) technology, dual wavelength, no moving parts
  • Breath-by-breath CO2 monitoring
  • Sample rate low to 50 mL/min
  • Barometer pressure and temperature compensation
  • Range calibration in 0 – 15% by manufacturer
  • Fast warmup time ensures full accuracy within 5 minutes
  • Oxygen, N2O and anesthetic compensation for accurate measurement
  • Low power consumption less than 2W
  • Fully compatible with Respronics Loflo sensor and CPT module

Technical Specifications:

Transducer Type

LH600 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 5 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 40°, 10 to 90% RH, non-condensing

Storage:  -40º to 70ºC, <90% RH, non-condensing

Interconnection

Pin out:

1.   TxD           Serial data from LH600

2.   RxD           Serial data from Host

3.   AGND         Analog return

4.   DGND         Digital return

5.   VA            5.0V

Data Interface 

Ø TTL level, 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,  barometric pressure compensation. 

Compensation for O2 (0 - 100%) and N2O (On / Off) when supplied by host.