User Manual EE820
CO
2
Sensor for Demanding Applications | 11
8 Technical Data
Measurands
CO
2
Measurement principle
Dual wavelength non-dispersive infrared technology (NDIR)
Measuring range
0...2 000 / 5 000 / 10 000 ppm
Accuracy
@ 25 °C (77 °F) and 1 013 mbar (14.7 psi)
0...2 000 ppm
0...5 000 ppm
0...10 000 ppm
< ±(50 ppm + 2 % of measured value)
< ±(50 ppm + 3 % of measured value)
< ±(100 ppm + 5 % of measured value)
Temperature dependency
in the range of -20...45 °C (-4...113 °F)
±(1 + CO
2
concentration [ppm] / 1 000) ppm/°C
Response time t
63
, typ.
300 s
Sampling interval,
approx.
15 s
Outputs
Analogue
CO
2
0...2 000 / 0...5 000 / 0...10 000 ppm
0 - 10 V
-1mA < I
L
< 1 mA
I
L
= load current
4 - 20 mA
R
L
≤ 500 Ω
R
L
= load resistance
General
Power supply
class III
USA & Canada: Class 2 supply necessary,
max. voltage 30 V DC
24 V DC ±20 %
15 - 35 V DC
Current consumption
, typ.
15 mA + output current
Peak current
, max.
@ analogue output
350 mA for 0.3 s
Warm-up time
1)
< 5 min
Electrical connection
Screw terminals max. 2.5 mm
2
or M12 plug
Working conditions
-20...+60 °C (-4...+140 °F)
0...100 %RH, non-condensing
Storage conditions
-20...+60 °C (-4...+140 °F)
0...95 %RH, non-condensing
Enclosure
Material
Protection rating
Polycarbonate (PC), UL94 V-0 approved
IP54
Electromagnetic compatibility
EN 61326-1
EN 61326-2-3
Industrial environment
FCC Part15 Class B
ICES-003 Class B
Conformity
1) For performance according to specification.
