T5145 – CO2 duct mount transmitter
Output: 4 to 20 mA Power: 9 to 30 V
Power consumption: 1 W during normal operation max. 4 W (for 50 ms with 15 s period)
Output in case of error: < 3.8 mA or > 24 mA
Concentration of CO2:
Accuracy: ± (50 ppm + 2 % of measuring value) (at temperature 25 ° and pressure 1013 hPa)
Range: 0 to 2 000 ppm
Temp. dependence: typ. 2 ppm / °C in the range -20 to 45 °C
Long term stability: typ. 20 ppm / year
Resolution: 1 ppm
Response time: t90 < 105 s in “SLOW” measurement mode t90 < 60 s in “FAST” measurement mode    
General
Protection: IP20 T5145(L), T5245(L)
Recommended interval of calibration: 5 year
Working position:  any position *) T5145(L),  _______________________________________________________________________________________________________________________________ *) The holes on the stem must be routed in the direction of the air flow, see chapter “Device installation”. Electromagnetic compatibility: EN 61326-1 Storage temperature range: -40 to +60 °C Storage relative humidity range: 5 to +95 °C Storage atmospheric pressure range: 700 to 1100 hPa
Cable length of probe: 1 m, 2 m or 4 m T5141(L), T5241(L) 
Weight: approximately T5245(L) 260 g