NDIR CO2 Sensor Module for Environment Parameters Logging - CO2 Engine BLG

? Measurement range CO2: 0 to 30%vol(CO2)
? Measurement range RH: 0 to 100%
? Measurement range °C: -40 to 60
? Low power consumption
? Individually calibrated
? Maintenance-free
? High quality

  • Model Number: CO2 Engine BLG
  • Data Sheet: Date Sheet File
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  • NDIR CO2 Sensor Module for Environment Parameters Logging
  • NDIR CO2 Sensor Module for Environment Parameters Logging
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Product Specification

CO2 Engine BLG
Sensor module for environment parameters logging

CO2 Engine BLG NDIR CO2 Sensor Modules General
?  This document describes a family of sensor modules CO2 Engine BLG designed to measure and store records of environmental parameters such as
   - Temperature
   - Relative Humidity
   - CO2  concentration (up to 30% range).
?  The sensor module CO2 Engine BLG is designed for battery powered operation with low average power consumption without compromising measurement precision and resolution.
?  Virtual RTC (Real Time Clock) allows data and events logging with time stamps.
?  Events include sensor power on, logging start/stop, ABC self calibration, user initiated zero and background calibrations.
?  Reading of logger via I2C connector and SenseAir's I2C - USB bridge (SADK).
?  I2C or UART communication can be used to read logged data for built in modules.

CO2 Engine BLG NDIR CO2 Sensor Modules Applications
The sensor can be used in a wide range of applications such as in food transportation, storage, incubators and other high range applications.

CO2 Engine BLG NDIR CO2 Sensor Modules Technical specification

Item
CO2 Engine BLG  Art. no:. 033-9-0015
General performance
Storage temperature range
-40 to +70 °C
Storage Environment
Non condensing, non corrosive environment 1
Operating Temperature Range
0 to 50 °C
Operating Humidity Range
0 to 95% RH (non-condensing) 2
Operating Environment
Non corrosive environment 2 . Residential, commercial,
industrial spaces used in HVAC (Heating Ventilation and Air-
Conditioning) systems 3
Sensor Life Expectancy
> 10 years
Maintenance Interval
Maintenance-free. See discussion of ABC algorithm on page 10
Self-Diagnostics
complete function check of the sensor module
Conformance with standards
RoHS directive 2011/65/EU
Electrical / Mechanical
Power Input
4.75-12 VDC 4 max rating, stabilized to within 10% powering
sensor via Vbat+
5.5-12 VDC 4 max rating, stabilized to within 10% powering
sensor via G+ (on board protection circuits)
Current consumption
~250μA (1 measurement/hour)
~50μA in sleep
~60 mA average during active measurement sequence (~12s)
< 150 mA peak current (averaged during IR lamp ON, 100 msec)
< 250 mA peak power (during IR lamp start-up, the first 50 msec)
for maximum operating time (if powered by batteries), choose
batteries that can deliver 250mA pulses without large voltage
drops (for example batteries recommended for cameras)
Electrical connections
Vbat+, G+ and G0
Dimensions (mm)
51 x 57 x 14 mm (Length x Width x Height) (0..30%
measurement range)
CO2 measurement
Sensing Method
non-dispersive infrared (NDIR) waveguide technology with ABC,
automatic background calibration algorithm (application specific)
Sampling Method
diffusion
Response Time (T1/e)
<25 sec gas diffusion time
Measurement period
5 min to 0.5 year interval, a measurement period less than 5
min can be used, but then specified accuracy on RH and
temperature measurements are not guaranteed
Repeatability
± 0,1 %vol. CO 2 ± 2 % of measured value
Accuracy 5
± 0,2 %vol. CO 2 ± 3 % of measured value
Pressure Dependence
+ 1.6 % reading per kPa deviation from normal pressure, 100 kPa
On-board calibration support
Din1 switch input to trigger Background Calibration @ 400 ppm
(0.04%vol) CO2
Din2 switch input to trigger Zero Calibration @ 0 ppm CO2
Temperature Measurement
Sensor
SHT11 from Sensirion
Measurement Range
- 40 to 60°C
Accuracy 6, 7
± 0.4°C at 25°C
Relative Humidity Measurement
Sensor
SHT11 from Sensirion
Measurement Range
0 to 100% RH non condensing
Accuracy 6, 7
± 3% RH
Logger properties
Logger Capacity
5400 logging points if CO2 concentration, temperature and
relative humidity are logged (with timestamp)
Logging Data
Selectable, one data record can contain up to 14 bytes (max 4 variables)
Logging Period
(1…255) * Measurement Period


Delay since setting jumper
0 to 255 seconds (5s in default configuration)
1 SO2 enriched environments are excluded.
2 Sensors are 100% tested in production at 45C / 85%RH / 1000ppm CO2  for one hour. For applications operating continuously in high humidity, contact SenseAir for further information.
3 Different options exist and can be customized depending on the application. Please, contact SenseAir for further information!
4 Notice that absolute maximum rating is 12V, so sensor can not be used with 12V+-10% supply.
5 Accuracy is specified over operating temperature range at normal pressure 1013 mBar. Specification is referenced to certified calibration mixtures. Uncertainty of calibration gas mixtures (+-2% currently) is to be added to the specified accuracy for absolute measurements.
6 Specification is provided by Sensirion.
7 Minimum 5 minutes measurement period.

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