CD-3A

Carbon Dioxide Analyzer

Introduction

The Model CD-3A Carbon Dioxide Analyzer provides a continuous and accurate measurement of gases containing up to 15% CO2. The Model CD-3A has the rapid response necessary for breath-by-breath analysis during respiration. It is also ideal for laboratory applications requiring high accuracy and sensitivity.

 

Features:

  • Wide range—0 to 15% CO2
  • High accuracy and sensitivity
  • Rapid response—ideal for accurate breath-by breath measurement
  • End Tidal CO2 Display
  • Microprocessor controlled—reliable, low maintenance operation

 

The Gold Standard in laboratory carbon dioxide analysis for over 20 years, worldwide.

Model P-61B Sensor

 

 

 

Capabilities

A complete Model CD-3A consists of a sensor, readout/control unit, and cable. When the sample gas is passed through the sensor, a voltage that is a function of the carbon dioxide concentration of the gas is generated. This voltage is fed to the readout/control unit via a connecting cable.

The optional R-1 (Single Channel) or R-2 (Dual Channel) Flow Control Unit can be used to draw the sample through the sensor. Each flow control unit contains a pump, a needle valve, and a flowmeter for each channel. Other gas handling equipment can be used if preferred.

 

 

 Model R-1 Flow Control

[Optional]

 

Model CD 3-A Specifications


Speed of Response:

24 or 400 milliseconds, user selectable, to 90% of final value for a step change in carbon dioxide concentration.

Accuracy:

±0.02% carbon dioxide or 1% of the reading, whichever is larger

Sensitivity:

±0.01% carbon dioxide

Resolution:

Digital Display: ±0.01% carbon dioxide

Range:

0-15% carbon dioxide

Display:

Continuous display of CO2 concentration or End Tidal for each breath

Analog Output:

0 to 7.5V for 0 to 15% CO2

Sample Flow Rate:

10-1000 ml/min

Stability:

±0.02% carbon dioxide at 5% in 8 hours maximum drift

Sensor Tubing Connections:

(IN/OUT) 1/8 / 1/8 inch OD stainless steel