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Digital NDIR CO2 Sensor Module for OEM Applications - EE893

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• CO2 Working range: 0 - 2000 / 5000 / 10000ppm
• Supply voltage: 4.75 - 7.5V DC
• Average power consumption: 58µA ~ 3.7mA
• Calibration interval: >5 years
• Operation temperature: -40~60°C (-40~140°F)
• Operation humidity: 0~95% RH (not condensating)
• Operation pressure: 85~110kPa (12.33...15.95psi)

Model Number: EE893
Data Sheet:

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Product Specification

EE893 Digital CO2 Sensor Module for OEM Applications

The E+E CO2 module EE893 is designed for OEM applications and for demanding environment. A multiple point CO2 and temperature adjustment procedure leads to excellent CO2 measurement accuracy over the entire temperature working range; this is a must for process control and outdoor applications.

The E+E dual wavelength NDIR CO2 sensing procedure compensates automatically for ageing effects. EE893 is highly insensitive to pollution and offers outstanding long term stability.

With its small dimensions and electrical connection via contact pins and pads, EE893 is the optimal choice for OEM devices such as wireless transmitters, hand-helds or data loggers. The measured data, with a range of up to 10000ppm, is available on the E2 digital interface.

An optional kit facilitates easy configuration and adjustment of the module. The measurement interval can be set according to the application requirements; by this the average current consumption can be reduced to less than 60μA for battery-operated devices.

EE893 Digital NDIR CO2 Sensor Module Typical Applications
• Data loggers
• Hand helds
• Wireless transmitters
• Building management
• Demand controlled ventilation

EE893 Digital CO2 Sensor Module Key Features
• Autocalibration
• Outstanding long-term stability
• Temperature compensation
• Low power consumption
• Very small size

EE893 Digital NDIR CO2 Sensor Module Technical Data

Measured values
CO2
Measurement principle	Dual wavelength (non-dispersive infrared technology) NDIR
Working range	0 - 2000 / 5000 / 10000ppm
Accuracy at 25°C and 1013mbar) (77°F and 14.69psi)	0- -2000ppm:	< ± (50ppm +2% of measuring value)
	0 - 5000ppm:	< ± (50ppm +3% of measuring value)
	0 - 10000ppm:	< ± (100ppm +5% of measuring value)
Response time t90	105s with measured data averaging (smooth output) 60s without measured data averaging

Temperature dependency	typ. 1ppm CO2/°C (-20~45°C) (-4~113°F)
Calibration interval	>5 years
Measuring time interval	adjustable from 15s up to 1h (factory setting: 15s)
General
Digital interface	E2 ( details: www.epluse.com)
Supply voltage	4.75 - 7.5V DC
Average power consumption	58µA (at 1h measurement interval) ~ 3.7mA (at 15s measurement interval)
Peak current	see power consumption graph
Electrical connection	contact pins, edge card socket (e.g. type MEC1-108-2)
Working conditions	-40~60°C (-40~140°F)	0~95% RH (not condensating)	85~110kPa (12.33~15.95psi)
Storage conditions	-40~60°C (-40~140°F)	0~95% RH (not condensating)	70~110kPa (10.15~15.95psi)