EE893 Digital NDIR CO2 Sensor Module for OEM Applications
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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) |