NLII-CO2 Combined sensor CO2/RH Enecont
NLII-CO2 Combined sensor CO2/RH Enecont
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NLII-CO2+RH sensor

Combined sensor NLII-CO2/RH is used to monitor air quality inside buildings and power control ventilation (HVAC) systems according to current levels of an air quality. The sensor measures concentration of carbon dioxide (CO2) and relative humidity (RH) in air. It can be effectively used in offices, classrooms, shopping centers, homes, restaurants, fitness centers, commercial buildings, etc.

  • measures CO2 and RH
  • 2x analog voltage/current output
  • 2x output relay – 2x NO/C
  • cascade switching
  • not required maintenance during operation
  • long life and stability
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Description

The measuring of CO2 is based on the principle of infrared radiation attenuation dependence on the CO2 concentration in the air (NDIR). Built-in auto-calibration function ensures very good long term stability.

Measurement of the relative humidity is based on the principle of capacitive polymer sensor. The sensor has built-in two separate analog outputs – one for the actual concentration of CO2 and the other for the current relative humidity. If the sensor contains 2 relays can be set two switching modes: standard (always one relay switched according to one quantity), a cascade mode (according to a selected quantity switch two relays with different levels of switching). Cascade switching, for example, can be used to switch power air conditioning units. The two rotary switches can be independently set the level at which the corresponding relay switches.

Sensor can efficiently manage ventilation and heat recovery units, based on current air quality. By three LED indicators can be easily checked the current air quality. Preferred eco level means good indoor air quality needed to achieve a sense of well-being and at the same time can reduce energy costs for heating or air conditioning. Based on these measurements can be directly controlled ventilation, air conditioning and heat recovery units in an efficient manner

ParameterValue 
Supply voltage range14 V – 40 V DC or 18 V – 30 V AC
Average consumption0,5W
Ingress protectionIP20
CO2 measuring range0 – 2000ppm
CO2 accuracy± 35 ppm + ±5 % of reading
CO2 relay – hysteresis100ppm
CO2 rate risemax 1min
CO2 step response(90 %) 80s
RH measuring range0 – 100 %RH
RH accuracy 20 – 80 %± 3 %RH
RH accuracy 0 – 100 %± 6 %RH
RH switching hysteresis5 %RH
Max. switching voltage250/30V AC / V DC
Max. switching current5/5A AC /A DC
Working humidity non condensing0 – 95 %RH
Working temperature no condensing0 to +50°C
Storage temperature-20 to +60°C
Expected lifetimemin. 10years
Dimensions90x80x31mm

Attached documents

Datasheet

Manual

 

Additional information

Design

Room

Senzor

CO2 – 2000ppm, RH

Power supply

14-40VDC, 18-30VAC

Output

Analogue

Privátní Dům / Byt

Bedroom, Living room

Komerční prostory

Changing rooms, Halls, Offices, Schools, cinemas

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