Professional In-Duct Air Quality Monitor

Short Description:

Model: PMD

Professional in-duct air quality monitor
PM2.5/ PM10/CO2/TVOC/Temperature/Humidity/CO /Ozone
RS485/Wi-Fi/RJ45/4G/LoraWAN is optional
12~26VDC, 100~240VAC, PoE selectable power supply
Built in environment compensation algorithm
Unique pitot and dual compartment design
RESET, CE/FCC /ICES /ROHS/Reach certificates
Compliant with WELL V2 and LEED V4

An air quality monitor used in air duct with its unique structure design and professional data output.
It can provide you reliable data consistently in its full lifecycle.
It has remotely track, diagnose, and correct data functions to ensure continuous accuracy and reliability outputs.
It has PM2.5/PM10/co2/TVOC sensing and optional formaldehyde and CO sensing in air duct, also temperature and humidity detection together.
With a large air bearing fan, it automatically regulates fan speed to ensure a constant air volume, enhancing stability and longevity during extended operation.

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Brief Introduction

Product Tags

FEATURES

• PMD-18 in-duct air quality detector is specially designed for monitoring multi-parameter air quality in air duct, Which is installed in wind duct or return air duct.

• The built-in sensor module uses Tongdy’s patented data algorithm, with enclosed cast aluminium structure. It ensures the stability, air closure and shielding, greatly improves the anti-interference ability.

• Built-in a large air bearing fan, regulate the fan speed automatically, guarantee constant air volume and improve the stability and lifetime in long-term working.

• Special design of pitot tube, instead the air pump mode, adapt to a wider range of wind speeds. To have longer lifetime and no need to change the air pump frequently.

• Easy to clean filter mesh, can be disassembled and used many times

• With temperature and humidity compensation, reduce the impact of environmental change.

• Real-time monitoring parameters: particles (PM2.5 and PM10), carbon dioxide (CO2), TVOC, air temperature and humidity, as well as optional carbon monoxide or formaldehyde,.

• Independently measure the temperature and humidity in the air duct, avoid interference from other sensors and monitoring heating.

• Provides WIFI, RJ45 Ethernet, RS485 Modbus communication interfaces selection. Provide multiple communication protocol choices.

• Connect to the data acquisition/analysis software platform to achieve data storage, data comparison and data analysis.

• Data can be read and displayed on-site with blue tooth or the operation tool.

• Working with MSD indoor air quality monitors together, comprehensively and accurately analyze the air quality. Quantitative assessment of indoor air pollution.

• Working with TF9 series outdoor air environment monitors together to form a partial and complete regional air quality monitoring, analysis and treatment system.

TECHNICAL SPECIFICATIONS

General Data
Power Supply	12~28VDC/18~27VAC or 100~240VAC (optional)
Communication Interface	Choose one in the following
RS485	RS485/RTU，9600bps 8N1(default), 15KV Antistatic protection
RJ45(Ethernet TCP)	MQTT protocol, Modbus customization or Modbus TCP optional
WiFi@2.4 GHz 802.11b/g/n	MQTT protocol, Modbus customization or Modbus TCP optional
Data upload interval cycle	Average / 60 seconds
Applicable air speed of duct	2.0~15m/s
Working Condition	-20℃~60℃/ 0~99%RH, (No condensation)
Storage Condition	0℃~50℃/ 10~60%RH
Overall Dimension	180X125X65.5mm
Pitot tube size	240mm
Net weight	850g
Shell material	PC material
CO2 Data
Sensor	Non-Dispersive Infrared Detector (NDIR)
Measuring Range	0～2,000ppm
Output Resolution	1ppm
Accuracy	±50ppm + 3% of reading or ±75ppm (whichever is bigger) （25℃, 10%~80%RH）
Particle Data
Sensor	Laser particle sensor
Measuring Range	PM2.5: 0~500μg/㎥； PM10: 0~500μg/㎥；
Output values	moving average/60 seconds, moving average/1 hour, moving average/24 hours
Output Resolution	0.1μg/㎥
Zero Point Stability	<2.5μg/㎥
PM2.5 Accuracy (mean per hour)	<±5μg/㎥+10% reading（0~300μg/㎥ @10~30℃，10~60%RH）
TVOC Data
Sensor	Metal oxide sensor
Measuring Range	0～3.5mg/m3
Output Resolution	0.001mg/m3
Accuracy	<±0.05mg/m3+ 15% of reading（25℃, 10%~60%RH）
Temp.& Humi. Data
Sensor	Band gap material temperature sensor、Capacitive humidity sensor
Temperature range	-20℃~60℃
Relative humidity range	0~99%RH
Output Resolution	Temperature: 0.01℃ humidity:0.01%RH
Accuracy	±0.5℃，3.5%RH（25℃, 10%~60%RH）
COData (option)
Sensor	Electrochemical CO sensor
Measuring Range	0～100ppm
Output Resolution	0.1ppm
Accuracy	±1ppm+ 5% of reading（25℃, 10%~60%RH）
OZONE (option)
Sensor	Electrochemical Ozone sensor
Measuring Range	0~2000ug∕㎥ @20℃（0~2mg/m³）
Output Resolution	2ug∕㎥
Accuracy	±20ug/m³+ 10% of reading（25℃, 10%~60%RH）
HCHO Data (option)
Sensor	Electrochemical Formaldehyde sensor
Measuring Range	0~0.6mg∕㎥
Output Resolution	0.001mg∕㎥
Accuracy	±0.005mg/㎥+5% of reading (25℃, 10%~60%RH)