Automatikprodukter - Controller and Sensor Technology

Updated: 10 May 2020

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COMBINED INDOOR/OUTDOOR MONITOR

High quality particle monitor PMX for ventilation and air purification systems.
The combined indoor/outdoor PMX Particle Counter is designed for environmental monitoring in industrial, commercial and institutional buildings.

The unit provides accurate readings of particle counts in two important sizes, 2.5μm and 10μm. The sensor uses the laser light scattering method which is not subject to drift or sensor contamination.

A fixed volume of air is pumped through the sensor and suspended particulate matter in a given unit volume of air is totalized into two bins, one for particles of 2.5μm and another for larger 10 micron sizes.

The results are reported in μg/ m³ of air with all data available over the RS485 port for integration into large systems using either the BACnet MS/TP or the Modbus RTU protocols,with an Ethernet port.

Analog outputs, one for each of the two particle size bins.

Indoor/Outdoor Monitor, PMX - Wall

Understanding	Art&Science	Modbus	PMX

RS485	RS485	Address list	Datasheet

Duct	Software	PMX (Swedish)
	Ask for latest
Kit		Press Release

Air Quality Levels		PM2.5 24h Average concentration	Effects on Health
Level	Air Type	μg/m³
I	Very good	0 - 35	Good air quality, almost no air pollution
II	Good	36 - 75	Acceptable air quality, but some pollutants may have a small effect on health on a handful of sensitive persons.
III	Light pollution	76 - 115	Vulnerable people will experience some degree of discomfort.
IV	Medium pollution	116 - 150	Vulnerable people will suffer a high degree of discomfort. It may also affect otherwise healthy people's hearts, lungs and respiratory systems.
V	Heavy pollution	151 - 250	Vulnerable people will suffer even further from discomfort. Many people will suffer severe symptoms.
VI	Serious pollution	> 251	Healthy people will suffer severe symptoms.

The World Health Organization and the European Union aim to decrease particle loads to less than 50μg/m³ as an average over 24 hours.

There are workplaces today where the average reaches 200-500μg/m³.

The Indoor Monitor converts measurements of particles to mass per cubic meter by assuming the particle intensity.

PMX is used to indicate the amount of particles or dust.

For increased security monitoring, you can if necessary, install a separate ozone detector in the room to get a better overall overview.

Features PM2.5/PM10

Accurate: Laser scatter method, particles are sized with a resolution of 0.3 μm
User defined sampling period prolongs sensor life
Fast Response: response time less than 10 seconds
LCD display with backlight for keypad setup and troubleshooting
High resolution: Particle diameter resolution of 2.5 μm
BACnet MS/TP and Modbus RTU protocols over RS485, with an Ethernet port at up to 115.2k baud
Transducer outputs with 0-10Vdc, 0-5Vdc and 4-20mA signals

Indoor/Outdoor Monitor, PMX - Duct

Understanding	Art&Science	Modbus	PMX

RS485	RS485	Address list	Datasheet

		PMX (Swedish)

		Press Release

Air Quality Levels		PM10 24h Average concentration	Effects on Health
Level	Air Type	μg/m³	invisible
I	Very good	0 - 50	Good air quality, almost no air pollution
II	Good	51 - 150	Acceptable air quality, but some pollutants may have a small effect on health on a handful of sensitive persons.
III	Light pollution	151 - 250	Vulnerable people will experience some degree of discomfort.
IV	Medium pollution	251 - 350	Vulnerable people will suffer a high degree of discomfort. It may also affect otherwise healthy people's hearts, lungs and respiratory systems.
V	Heavy pollution	351 - 4200	Vulnerable people will suffer even further from discomfort. Many people will suffer severe symptoms.
VI	Serious pollution	> 421	Healthy people will suffer severe symptoms.

Wiring diagram

E-mail: lars@fjellcom.se

Phone: +46(0)31-287202

Mobile: +46(0)706-755561

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