IE-SNC-T83(4)48-03
15
Technical data
Measured values
CO
2
concentration:
Accuracy:
± (50 ppm + 2 % of measuring value) at 25 °C
(77
°F) and 1013 hPa
Range:
0 to 2000 ppm
Temperature depend.:
typ. 2 ppm CO
2
/ ºC in the range 0 to +50 ºC
(32 to 122
°F)
Long term stability:
typ. 20 ppm / year
Resolution:
1 ppm
Response time:
t90 < 195 s
in „SLOW“ measurement mode
t90 < 75 s
in „FAST“ measurement mode
Temperature:
Accuracy:
± 0.5 °C (±0.9 ºF)
Measuring range:
-10 to +50
°C (14 to 122 °F)
Resolution:
0.1 °C
Response time:
t90 < 6 min (air flow approximately 0.3 m/s)
t90 < 11 min (no air flow)
General specifications
RS485 interface
:
Receiver-Input Resistance:
96 kΩ
Devices on bus:
max. 256 (1/8 Unit Receiver Load)
Power supply voltage:
9 to 30 Vdc
Power consumption:
0,5 W during normal operation
3 W for 50 ms with 15 s period
Measuring interval:
temperature
0,5 s
CO
2
concentration
15 s
Protection:
IP20
