T5140 CO2 concentration transmitter with 4-20mA output, built-in carbon dioxide sensor
The CO2 - carbon dioxide level is recently regarded as an important parameter that substantially determines the quality of the interior climate. Especially in buildings where many people gather, such meeting rooms, hospitals, schools, cinemas, theatres and care centres. With the help of CO2 sensor engineers, technical advisors, environmental experts and health specialists can optimize the ventilation for creation of a healthy interior climate.
The CO2 measurement is based on a 2-source, 2-beam process. CO2 measurement with long-term stability is guaranteed thanks to the proven non-dispersive infrared (NDIR) CO2 measurement cell.
The unique patented auto-calibration procedure compensates for aging of the infrared source and guarantees high reliability, long term stability and eliminates the need of periodical recalibration in the field.
APPLICATIONS - measuring of CO2 level at:
- building HVAC management
- climate technology
- schools, universities
- meeting rooms, hospitals, cinemas, theatres
- weather stations
Transmitter contains a microprocessor based control circuitry in a durable plastic case with connection terminals.
The CO2 concentration sensor is built inside the case.
Large dual line LCD is an advantage. Display is possible to switch off. Computerized design ensures maximum long term stability and failure indication.
Measured CO2 concentration values are converted to 4-20mA current output.
Output is adjusted to maximum range from the manufacturer. To adjust other range by the user buying of SP003 cable is necessary - see Optional accessory. Free configuration program TSensor for transmitter adjustment is ready to download anytime. If different adjustment of output range is required, please specify required range in the order. Adjustment is free of charge.
Ordering example: Transmitter T5140, output 0 to 2000ppm
Typical application wiring

Tehnical data:
Tehnical parameters | Value |
Output |
4-20mA |
Measured Value |
CO2 |
Construction Type |
Ambient Air |
Design |
Industrial |
Temperature Measuring Range |
None |
Relay Output |
No |
Two-State Input |
No |
Lcd Display |
Yes |
Range of CO2 concentration measurement |
0 to 2000 ppm |
Accuracy of CO2 concentration measurement |
±(50ppm +2% from reading) at 25°C and 1013hPa |
Temperature operating range |
-30 to +60°C |
IP protection |
IP30 |
Power |
9-30Vdc |
Dimensions |
88.5 x 94 x 39.5 mm (W x H x D) |
Weight |
approximately 145g |
Warranty |
2 years |
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