Modular 4 in 1 Probe for CO₂, Humidity, Temperature and Pressure
EE872 incorporates the E+E dual wavelength NDIR CO₂ sensor, which automatically compensates for ageing effects, is highly insensitive to pollution and ensures an outstanding long term stability. The multi-point CO₂ and temperature adjustment leads to an outstanding measurement accuracy. The RH sensing element with E+E proprietary coating is suitable even for aggressive and corrosive environment.
Beside CO₂, the EE872 measures also relative humidity (RH), temperature and ambient pressure (p). Additionally, the devices calculated also the dew point temperature (Td).
The heated versions of the EE872 are suitable even for high humidity and condensing environment. The IP65 enclosure and the PTFE filter cap offer excellent protection in polluted environment. With a catalytic filter cap, the EE872 is also appropriate for applications with periodical H2O2 sterilization.
The CO₂ measured data is available simultaneously on the analogue voltage and current outputs. Depending on the EE872 version, the RS485 interface with Modbus RTU offers also the RH, T, p, or Td data.
The free PCS10 Product Configuration Software together with an optional adapter cable facilitates the configuration and adjustment of the EE872.
Sigma 05 - Modular Sensor Platform
The EE872 is compatible with the Sigma 05 host device of the E+E Modular Sensor Platform. Together they become a versatile, plug-and-play CO2 /RH/T/p modular sensor with analogue outputs and optional display. Besides EE872, Sigma 05 accommodates also other E+E intelligent sensing probes. See www.epluse.com/Sigma05 for further details.
- 4 in 1: CO₂, RH, T and p measurement
- Heated versions for high humidity, condensing conditions
- Dual wavelength NDIR CO₂ measuring principle
- CO₂ measuring range up to 50,000 ppm
- T and p compensation with on-board sensors
- Replaceable sensing module
- IP65 protection class
- Low power consumption
- Excellent long-term stability
- High insensitivity to pollution
- Analogue output or Modbus RTU
- User configurable and adjustable
- Measuring Range CO₂
- 0…2000 ppm0…5000 ppm0…10000 ppm0…3 % (30000 ppm)0…5 % (50000 ppm)
- Accuracy CO₂ - * mv – measured value
- ± (50 ppm + 2 % mv*)± (50 ppm + 3 % mv*)± (100 ppm + 5 % mv*)± (1.5 % from full scale + 2 % mv*)± (1.5 % from full scale + 2 % mv*)
- Measuring range Relative Humidity
- 0…95 % RH (non condensing)
- Accuracy Relative Humidity at 25 °C (77 °C) and 20...80% RH
- typ. ± 3 % RH
- Measuring range Pressure
- 700…1100 mbar (10.15...15.95 psi)
- Accuracy Pressure at 25 °C
- typ. ± 2 mbar
- Measuring range Temperature
- -40…60 °C (-40...140 °F)
- Accuracy Temperature at 5…60 °C (41…140 °F)
- typ. ± 0.5 °C (± 0.9 °F)
- Output analogue
- 0-5V / 10 V and 0/4-20 mA
- Output digital
- Modbus RTU
- Supply
- 15-35 VDC (current)12-30 VDC (voltage / RS485)
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FAQ
All E+E CO₂ measuring devices feature an auto-calibration function. For details please refer to "Principles of CO₂ measurement".
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Downloads EE872
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