Introduction:
The OEM Compact CO2 CapnoGraphy Module (CO2CGM) is a complete data collection and analysis system for monitoring respiratory carbon dioxide concentration. The CO2CGM module includes a miniature of CO2 detecting system, barometric pressure transducer and a miniature low-power vacuum pump. A microprocessor collects the sensor data and calculates various real-time parameters: instantaneous CO2 concentration, end-tidal CO2 concentration, inspired CO2 concentration, inspiration and expiration times.
The module is highly configurable to meet most OEM implementation requirements. System specifications such as baudrate, parity, waveform data rate and floating point data format can be programmed at the factory for custom configurations.
Interfacing to the CO2CGM module is very simple. The module requires a +12V supply at 300mA maximum current (200mA typical). The host sends commands and receives waveform, breath parameters and command responses on two +3.3V asynchronous serial data lines.
Features:
Pyroelectric multispectral detector with thermal compensation;
Non-dispersive infrared (NDIR) single beam optics, dual wavelength, no moving parts;
Gas flow isolated from electronic design. It can prevent system is corrupted by vapour;
Powered by special DC-DC module and work normally even power supply achieves 9V.
Mechanical Size:
Length X Width:110mm X 93mm
Top Height: 36mm
Bottom Height:5mm
PCB thickness:1.6mm
Fixed Holes:4 X OD3.5mm
Specifications:
Power and serial communications to the CO2CGM module are provided through connectors J1 and J2.
Below is pin descriptions for J1 & J2:
|
Connector
|
PIN NAME
|
Description
|
|
J1
|
1 - POWER
|
+12V - +15V, no less than 300mA
|
|
2 - GND
|
GND for power supply
|
|
J2
|
1 – GND
|
Signal ground for serial communication
|
|
2 – DRX
|
Digital Receive for serial communication
|
|
3 – DTX
|
Digital Transmit for serial communication
|
