PROTRONIX NLII-DUST Particulate Matter Room Sensor User Manual
- June 6, 2024
- PROTRONIX
Table of Contents
User manual
NLII-DUST
Particulate matter room sensor
The sensor is used to monitor air quality inside buildings and to control
ventilation (HVAC) and air iltration systems according to current levels of
air pollution. The sensor measures the concentration of particulate matter
(PMx), such as dust and various chemical substances in the air. The sensor is
suited for indoor air quality monitoring, where is the need to monitor PM
concentrations such as offices, school classrooms, homes, shopping centers,
light industry etc.
- detects and measures dust particles in air
- 0 – 10 VDC analog output for PM2,5
- 0 – 10 VDC analog output for PM10
- the sensor is suited for indoor air quality monitoring according to WELL Building
- Standard defined by IWBI (International
- WELL Building Institute)
- does not require maintenance during operation
- long life > 8 years
Description
Measurement is based on the principle of laser beam dispersion on particles.
The human organism can dispose of particles bigger than 10 μm, but smaller
particles will easy get deep in to the respiratory tract and can come through
up to alveoli and then to the bloodstream. Increased PM concentration can
cause respiratory irritation and lead to more frequent infections. Prolonged
exposure to elevated concentrations increases also the risk of other health
problems.
The sensor has built-in two separate analog outputs according to the size of
particles, PM2,5 and PM10, which are the standard indicators of particle
matter air pollution. The current air quality can easily be determined by
looking at the three LED indicators.
International WELL Building Institute provides the following particulate
matter limits for indoor air: < 15 µg/m 3 for PM2,5 3 and < 50 µg/m for PM10.
Explanation of abbreviations and technical terms can be found on our website
in the Glossary section.
Table of parameters
Parameter | Value Unit |
---|---|
Supply voltage range | 12 – 35 V DC |
Power consumption | 12 – 24 V AC |
Measuring range PM10, PM2,5 | max 0,8 W |
PM2,5 analog output | 0 – 100 μg/m |
PM10 analog output | 1) 0-10 V / 0-20 mA |
Resolution | 3 1 μg/m |
Accuracy 0 – 100 μg/m | 3 ± 10 μg/m |
Measurement interval | 1 s |
Start-up time | ˂ 8 s |
Working humidity condensing | 0 – 95 % RH |
Working temperature | 0 to +50 °C |
Storage temperature | 20 to +60 °C |
Expected lifetime | min. 8 years |
Ingress protection | IP20 |
Dimensions | 90x80x31 mm |
It is possible to select the desired type of analog output by a jumper. |
Particle sizes ranges
PM2,5| 0,3 – 2,5 μm
PM10| 0,3 – 10,0 μm
LED indication description
By a jumper setting it is possible to select the output, according to what the
LED will indicate — see Jumpers setting.
White light:
Low level of PMx concentration. Excellent air quality but maintaining low
concentrations of PMx is not cost-effective.
Greenlight:
Optimal balance of air quality and energy efficiency of ventilation, heating
or air conditioning.
Yellow light:
The increased amount of PM, which can cause respiratory irritation and can
lead to more frequent infections. Prolonged exposure to elevated
concentrations increases the risk of other health problems.
Auto-cleaning
The sensor has a self-cleaning function, which is performed automatically once
a week using a built-in fan. The process lasts 10 s and during it the measured
data are not available.
Sensor failure indication
All three LEDs light up at the same time permanently.
CAUTION:
It is necessary to avoid the severe mechanical shock of the sensor.
Electronic boards controls and terminals
Terminals
1. ~ + power supply DC (+) plus pole
2. ~ GND power supply DC (-) minus pole, GND
3. OUT1 analog output PM10 0-10 V or 0-20 mA
4. GND ground for output PM10
5. OUT2 analog output PM2,5 0-10 V or 0-20 mA
6. GND ground for output PM2,5
| Jumpers JP3 – voltage/current output OUT1 – PM10
JP4 – voltage/current output OUT2 – PM2,5
JP6 – LED indication
---|---
Jumpers setting
Mark| Description| Setting|
Meaning
---|---|---|---
JP3| Voltage/current output PM10
**** – selection of analog output type
| | voltage output PM10
| current output PM10
JP4| Voltage/current output PM2,5
**** – selection of analog output type
| | voltage output PM2,5
| current output PM2,5
JP6 – 1
JP6 – 3
| Enabling LED indication
LED indication according to PM2,5 / PM10
| | LED indication disabled
| LED indication according to PM10 LED indication enabled
| LED indication according to PM2,5 LED indication enabled
Sensor assembly
Dimensions Box color
Front: White – RAL9016
Base: gray – RAL7035
Way to use
The product is intended for indoor use only. You can read the recommendations
for sensor placement on our web pages.
End of product life
Discard the product according to the electronic waste law and the EU
directives.
The producer reserves the right of technical changes in order to product
improvements its properties and functions without previous notice.
Protronix s.r.o., Pardubická 177,
Chrudim 537 01, Czech Republic
www.protronix.cz/en/
www.careforair.eu/en/
um-nlii-dust-en-v3-201026.docx