OEM CO2 Content Sensor for High Concentrations — BLG
Спецификация BLG
Available on request
Delivery across Russia
Order phone: +7(800)777-18-50
Description
CO2 Engine ® BLG series sensors, designed to measure and store data on environmental conditions such as:
- Temperature
- Relative humidity
- CO2 concentration (up to 30%).
The CO2 Engine ® BLG sensor module is designed to operate on battery power and consumes low amounts of energy, which nevertheless does not affect the accuracy and resolution of measurements.
Virtual RTC (Real-Time Clock) allows storing measurement results and events along with the time. Events include sensor power-on, start and stop of recording, automatic ABC calibration, as well as user-performed zero calibration and background calibration.
Data reading from the logger via I2C connector and using the I2C–USB bridge (SADK, SenseAir accessory).
Data reading for embedded modules via I2C or UART.
- Specifications
- Applications
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Specifications |
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General Information |
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Storage / Operating Temperature |
-40…+70 °C |
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Storage Conditions |
Non-corrosive environment without condensation[1] |
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Temperature Compensation Range |
0…+50 °C |
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Operating Humidity Range |
0…95% RH relative humidity (no condensation)[2] |
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Operating Environment |
Non-corrosive environment2. HVAC systems of residential, commercial, and industrial buildings[3] |
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Service Life |
> 10 years |
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Maintenance Interval |
No maintenance required. Calibration using ABC algorithm. |
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Automatic Diagnostics |
Full sensor functionality check |
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Standards Compliance |
RoHS directive 2011/65/EU |
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Electrical / Mechanical Characteristics |
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Power Supply |
Maximum load 4.75-12 VDC[4], stabilized within 10% of sensor power via Vbat+ Maximum load 5.5-12 VDC4, stabilized within 10% of sensor power via G+ (on board protection circuits) |
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Current Consumption |
~250µA (1 measurement per hour) ~50µA in sleep mode Average ~60 mA during active measurements (~12 s) Peak value < 150 mA (averaged during infrared signal activation, 100 ms) Peak value < 250 mA (during infrared lamp activation, first 50 ms) For maximum operating time (battery powered), use batteries capable of delivering 250 mA pulses without significant voltage drop (e.g., batteries recommended for cameras) |
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Electrical Connection |
Vbat+, G+ and G0 |
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Dimensions (mm) |
51 x 57 x 14 (Length x Width x Height) (for 0…30% range) |
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CO2 Concentration Measurement |
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Measurement Principle |
Non-dispersive infrared (NDIR) with automatic calibration ABC algorithm |
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Sampling Method |
Diffusion |
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Response Time (T1/e) |
Gas diffusion time <25 sec |
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Measurement Interval |
Interval from 5 min to 0.5 years, shorter than 5 min possible but accuracy of humidity and temperature measurement is not guaranteed |
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Reproducibility |
± 0.1%vol. CO2 ± 2 % of measured value |
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Accuracy[5] |
± 0.2%vol. CO2 ± 3 % of the measured value |
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Pressure dependence |
When deviating from atmospheric pressure (100 kPa) – deviation + 1.6 % of the measured value per 1 kPa |
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Built-in calibration |
Din1 relay input, enabling background calibration at 400 ppm (0.04%vol) CO2 Din2 relay input, enabling zero calibration at 0 ppm CO2 |
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Temperature measurement |
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Sensor |
SHT11 by Sensirion (www.sensirion.com) |
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Measurement range |
-40…+60°C |
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Accuracy[6], [7] |
± 0.4°C at 25°C |
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Relative humidity measurement |
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Sensor |
SHT11 by Sensirion (www.sensirion.com) |
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Measurement range |
0…100% relative humidity |
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Accuracy[6], [7] |
± 3% relative humidity |
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Data logger properties |
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Logger memory capacity |
5400 data points when recording CO2 concentration, temperature, and humidity (including measurement time information) |
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Logged parameters |
Selectable, one record can contain up to 14 bytes (maximum 4 variables) |
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Logging interval |
(1…255) * Measurement interval |
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Delay after jumper switch |
From 0 to 255 seconds (default – 5s) |
[1] Except environments with high SO2 content.
[2] 100% of sensors are tested during production at 45°C / 85% RH / 1000ppm CO2 for one hour. For information on sensor use in high humidity environments, contact SenseAir.
[3] Various optional versions exist for specific applications. Contact SenseAir for more details.
[4] Note that the maximum load is 14V, so the sensor can be used with 12V±10% power supply.
[5] Accuracy defined for operating temperatures and atmospheric pressure of 1013 mbar. Certified calibration gas mixtures are used for calculation. Calibration gas deviation (currently ±2%) is included in the stated accuracy.
[6] Data provided by Sensirion
[7] Measurement interval minimum 5 minutes
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