Carbon Dioxide Sensor - 'Ex' Certified Types

Premier Series of InfraRed (IR) Gas Sensors

Technical Data Sheet (pdf) -

  1. TDS0036 - 0-5% Vol. CO2 Range 'Ex' Certified.
  2. TDS0054 - 0-100% Vol. CO2 Range 'Ex' Certified.
  3. TDS0057 - ppm CO2 Range 'Ex' Certified.

IR Carbon Dioxide Gas Sensor

Features

  1. Measurement ranges - 0-500ppm up to 0-5% Volume & 0-100% Volume CO2
  2. Operating voltage 3 to 5 volts dc, nominal current = 80mA
  3. Wide operating temperature range of -20 to +50 deg. C
  4. Output format options - Digital, Analogue or Pellistor Replacement
  5. Instantly converts existing compatible pellistor-based instruments to infrared
  6. Sensors can be factory configured to customer specifications
  7. User configurable via a configuration unit available from Dynament
  8. Internal 'Flash' memory enables firmware updates via the configuration unit
  9. Industry standard size - 20mm diameter x 16.6mm high (excluding pins)
  10. 3-pin (pellistor replacement) or 5-pin versions available
  11. Optional replaceable, self-adhesive micro porous 14 micron filter
Description

These Carbon Dioxide sensors contain all the necessary optics, electronics and firmware to provide a linearized, temperature compensated output. The sensors provide equipment designers with a fast track route to introduce the latest infrared technology for detection of Carbon Dioxide gas without the requirement for any specialist knowledge.

They are contained in an Ex d stainless steel housing and are hazardous area certified to IECEx, ATEX and UL standards. The IECEx and ATEX certification also includes Group I (mining) certification. Further information.

The sensors can be used to measure Carbon Dioxide gas within a wide range of commercial and industrial applications. The standard measurement ranges that are available are:-

If you have a requirement for a particular non-standard range then please contact us and we will be please to assist you with your application.

A separately available Configuration Unit enables users to customise certain parameters within the Premier sensor in order to suit their particular requirements - see below.

Sensor Order Codes

The Premier Carbon Dioxide series commence with the code MSH-P/CO2 (for ranges up to 5% volume) or MSH-P/HCO2 (for ranges from 5% to 100%volume). There are a number of other options within each sensor type such as the number of pins (3 or 5), Bridge or Voltage output, Positive or Negative supply etc.

Note - For Mining Certified Types (I M1, Ex d+ia I Ma) , replace 'MSH' with 'MSHia' within the order codes detailed below.

Order Code

Description

MSH-P/CO2/5/V/P

+

Configuration Options - See Below

Premier 0 - 5% Vol. Carbon Dioxide Sensor, Certified

5-Pin Version, Voltage Analogue Output, Positive Supply

MSH-P/CO2/5/V/N

+

Configuration Options - See Below

Premier 0 - 5% Vol. Carbon Dioxide Sensor, Certified

5-Pin Version, Voltage Analogue Output, Negative Supply

MSH-P/CO2/3/B/P

+

Configuration Options - See Below

Premier 0 - 5% Vol. Carbon Dioxide Sensor, Certified

3-Pin Version, Bridge Output, Positive Supply

MSH-P/CO2/3/B/N

+

Configuration Options - See Below

Premier 0 - 5% Vol. Carbon Dioxide Sensor, Certified

3-Pin Version, Bridge Output, Negative Supply

Order Code

Description

MSH-P/HCO2/5/V/P

+

Configuration Options - See Below

Premier 0 - 100% Vol. Carbon Dioxide Sensor, Certified

5-Pin Version, Voltage Analogue Output, Positive Supply

MSH-P/HCO2/5/V/N

+

Configuration Options - See Below

Premier 0 - 100% Vol. Carbon Dioxide Sensor, Certified

5-Pin Version, Voltage Analogue Output, Negative Supply

MSH-P/HCO2/3/B/P

+

Configuration Options - See Below

Premier 0 - 100% Vol. Carbon Dioxide Sensor, Certified

3-Pin Version, Bridge Output, Positive Supply

MSH-P/HCO2/3/B/N

+

Configuration Options - See Below

Premier 0 - 100% Vol. Carbon Dioxide Sensor, Certified

3-Pin Version, Bridge Output, Negative Supply

A replaceable, self-adhesive microporous PTFE filter can be fitted to any of the above sensors by adding a suffix /F to the above order codes.

Configuration Options

In addition to the above order codes, the following configuration options should be provided when ordering:-

  1. Measurement range.
  2. Output voltage for zero.
  3. Output voltage for span
  4. Rising or falling output voltage with increasing gas level (for "Bridge" outputs).
  5. Sensitivity e.g. 100 mV = 100 % volume CO2 for "Bridge" outputs, 0.4 2.4V = 100% volume CO2 for "Voltage" output sensors.
  6. Communication speed 38,400 baud (default), specify alternative rate if required.

More background information

Configuration Unit

The Premier Sensor Configuration unit enables users to customise certain parameters within the Premier sensor in order to suit their particular requirements. The unit is supplied complete with a PC software configuration package. Versions of the unit are available for either positive or negative supply sensors. Ordering details are as follows:

Positive version - Type P/CONFIG/POS
Negative version - Type P/CONFIG/NEG