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Overview

The product can measure criteria air pollutants including particulate matters (PM2.5, PM10), nitrogen dioxide (NO2), ozone (O3), carbon monoxide (CO), sulfur dioxide (SO2) with near reference data quality under all weather conditions. Other important air pollutants including nitrogen monoxides (NO), total volatile organic compounds (TVOC) and carbon dioxide (CO2) are optional.

NAS-AF300 is equipped with the newest Pair Differential Filter sensing technology for continuous tracking of virtual baseline for the gas sensors signals. Autozero functions are also enabled to track the long-term drift issues for both gas and PM measurements. Data transmission to designated 博彩现金评级平台 cloud server or user designated server through API and direct TCP links are optional.

Detail

Feature

✔ Lightweight and compact design for versatile installation options

✔ IP65 grade waterproof design for all-weather condition outdoor monitoring;

✔ Integrated high-performance temperature and humidity sensor for PM hygroscopicity correction;

✔ Proprietary PM humidity correction algorithm built on-chip for direct PM concentration output;

✔ Up to 4 or 6 gases simultaneous measurements at ppb levels of NO2, O3, SO2, NO and ppm level of CO, with SO2, TVOC, and CO2 as optional;

✔ Pair Differential Filter (PDF) sensing technology is enabled for gas sensors to auto-track the virtual baseline of sensor signals;

✔ Correction of sensor drift impact by auto-zero function for NO, NO2, O3, and TVOC gases;

✔ The algorithm on Chip (AoC) is enabled for gas concentration direct output with auto quality control;

✔ External smart battery packs are optional for extended outdoor powerless operation for up to 2 weeks;

✔ Solar power panels are optional for extended operations in remote outdoor environments.

✔ Data transmission via 4G network for continuous and real-time monitoring through cloud platforms;

✔ Cloud database storage and cloud platform for user access and in-depth analysis of the data;

System

▌Dimension： 200 mm x 300 mm x 150 mm (W x H x D)

▌Weight： 4 kg without internal battery;

▌Environmental Operating Range： Temperature: -10-40°C; Humidity: 5-90 %; Pressure: 80kPa~120kPa

▌Installation options： Tripod / Wall mount / Cross arm

▌Ingress Protection： IP65 with optional metal shield for UV protection and sun exposure

▌Power Input： 24 V DC input (Optional: External Battery Packs, Solar Power Panel)

▌Power Consumption：Normal @ 10W, Max @ 15 W

▌Data Management: 博彩现金评级平台 Environment IoT Network (SEIN) Platform

▌Data Communication: 4G module communication for data transmission to cloud platform

RS485/232 communication for 博彩现金评级平台 Console software with data streaming and system configuration

MODBUS protocol enabled

▌Data storage: Standard 32G SD card for data storage

▌Gas sampling: Active sampling with long life pump

▌PM sampling: Fan based sampling

▌Sampling Rate: 5 seconds, 1 minute, 1 hour

▌Averaging Interval: 1 minute, 60 minutes, 1 day

▌Quality Control System:

Humidity correction for PM measurement with proprietary algorithm

Pair Differential Filter technology for temperature and humidity impact correction on gas sensor signals

Auto zero functions for SO2, NO, NO2, O3 to correct for sensor drifting over long term operation

Sensors

▌Gas Module	▌Range	▌Resolution
Nitrogen Dioxide (NO2)	0-5 ppm 0-20 ppm	1 ppb 1 ppb
Ozone (O3)	0-5 ppm 0-20 ppm	1 ppb 1 ppb
Sulfur dioxide (SO2)	0-5 ppm	1 ppb
Carbon Monoxide (CO)	0-20 ppm	0.01 ppm
Air Temperature	-15-45 °C	0.1 °C
Air Humidity	5- 95 %	0.1%
Nitrogen Monoxide (NO)	0- 5 ppm 0-20 ppm	1 ppb 1 ppb
Total Volatile Organic Compounds (TVOC)	0-20 ppm 0-500 ppm	5 ppb 0.1 ppm
Carbon Dioxide(CO2)	0-5000 ppm	1 ppm