Carbon Dioxide Transmitters

carbon dioxide transmitters

 

Technical Inquiries

support-form3

Carbon dioxide (CO2) is a gaseous component of the earth’s atmosphere. The concentration of CO2 in natural ambient air is about 0.04% or 400ppm. With each breath, humans convert oxygen (O2) into carbon dioxide. Although carbon dioxide is invisible and odorless, an increased CO2-content is apparent because humans will notice increased fatigue and reduced concentration. In rooms with high occupancy such as conference rooms and theatres, negative effects become all the more evident. Modern climate control can assure optimal air quality by adjusting the supply of fresh air based on the measurement of CO2 concentration in the indoor air. The CO2-concentration is regarded as an important measure of indoor air quality.Read more

 

CO2 Transmitters for Room, incl. T and / or %RH Series EE800

 

EE80-tn

 

Specifications

  • Carbon Dioxide Range: 0 – 2000 ppm / 0 – 5000 ppm
  • Accuracy : < ± (50 ppm + 2% of reading) for 0 – 2000 ppm
                        < ± (50 ppm + 3% of reading) for 0 – 5000 ppm
  • Relative Humidity range: 10 – 90 %RH
  • Temperature range: 23 – 131 °F (-5 – 55 °C)
  • Dewpoint Temperature range: -22 – 131 °F (-30 – 55 °C)
  • Outputs: 0 – 5 V /  0 – 10 V / 4 – 20 mA; RS485 – Modbus RTU or BACnet MS/TP
  • US-version; will fit electrical outlet box
  • Auto calibrate
  • Optional display

 

CO2 Transmitter for Agriculture Applications Series EE820

 

EE820_DB_small

 

Specifications

  • Dual wavelength non-dispersive infrared technology (NDIR)
  • Carbon Dioxide Range: 0 – 2000 ppm / 0 – 5000 ppm / 0 – 10000 ppm
  • Accuracy: < ± (50 ppm + 2% of reading) 0 – 2000 ppm
                        < ± (50 ppm + 3% of reading) 0 – 5000 ppm
                        < ± (100 ppm + 5% of reading) 0 – 10000 ppm
  • Outputs: 0 – 5 V / 0 – 10 V / 4 – 20 mA
  • Supply voltage: 24 Vac ± 20% / 15 – 35 Vdc
  • Auto calibration / Long-term stability
  • High resistance to pollution
  • Enclosure Polycarbonate – IP65 / NEMA 4X
  • Plug connection optional

 

CO2 Transmitter for Duct Mounting Series EE850

 

EE850_Flansch_frei_oH_small

 

Specifications

  • Dual wavelength non-dispersive infrared technology (NDIR)
  • Carbon Dioxide Range: 0 – 2000 ppm / 0 – 5000 ppm / 0 – 10000 ppm
  • Accuracy: < ± (50 ppm + 2% of reading) for 0 – 2000 ppm
                       < ± (50 ppm + 3% of reading) for 0 – 5000 ppm
                       < ± (100 ppm + 5% of reading) for 0 – 10000 ppm
  • Outputs: 0 – 5 V / 0 – 10 V / 4 – 20mA
  • Passive Temperature output optional
  • Supply voltage: 24 Vac ± 20% / 15 – 35 Vdc
  • Auto calibration
  • Enclosure Polycarbonate – IP65 / NEMA 4X; probe IP20

 

CO2 Probes for OEM / HVAC Applications Series EE870 / EE871

 

EE871_small1

 

Specifications

  • Carbon Dioxide Range: 0 – 2000 ppm / 0 – 5000 ppm / 0 – 10000 ppm
  • Accuracy: < ± (50 ppm + 2% of reading) 0 – 2000 ppm
                        < ± (50 ppm + 3% of reading) 0 – 5000 ppm
                        < ± (100 ppm + 5% of reading) 0 – 10000 ppm
  • Digital output E2 (2-wire) probe EE871
  • Supply voltage EE871: 4.75 – 7.5 Vdc
  • Conversion board EE870: 10 -135 Vdc / 10 – 28.8 Vac
  • Analogue outputs EE870: 0 -1 /5 /10 V and 0 (4) – 20 mA
  • Extreme low power consumption
  • Auto calibration

 

CO2 Module for OEM / HVAC Applications Series EE893 / EE892

 

EE893_small

 

Specifications

  • Carbon Dioxide Range: 0 – 2000 ppm / 0 – 5000 ppm / 0 – 10000 ppm
  • Accuracy: < ± (50 ppm + 2% of reading) 0 – 2000 ppm
                       < ± (50 ppm + 3% of reading) 0 – 5000 ppm
                        < ± (100 ppm + 5% of reading) 0 – 10000 ppm
  • Digital output E2 (2-wire)
  • Supply voltage: 4.75 – 7.5 Vdc
  • Extreme low power consumption
  • Auto calibrate

 

pdf  CO2 Measurement Theory
pdf  IP / NEMA a comparison
pdf  E2 Interface Specification
pdf  E2 Interface EE871
pdf  E2 Interface EE89

 

Please note: Manual data files can be quite large, please be patient while downloading.
The manuals are for information purposes only and shouldn’t be used for operating the instrument