AQT530 VAISALA | Alldatasheet

Document overview

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Technical content

Features

  • Measures important urban pollutan t gases (NO2, NO, O3, and CO) and particles (PM10, PM2.5, PM1)
  • Proven laser particle counter (LPC) technology with pulse height analyzer for measuring particulate matter
  • Intelligent humidity management for gas sensor elements
  • Robust temperature and humidity sensor using Vaisala HUMICAPâ technology
  • Compact design and easy to deploy in the field
  • Factory calibrated
  • Field performance derived from global long-term multi-site and multi-continent field tests 1) 1) Test locations include Beijing, China; Helsinki, Finland; Jak arta, Indonesia; Lapland, Finland; London, UK; New Mexico, Arizona, US; Paris, France; São Paulo, Brazil.

Applications

  • Air quality networks supplemen ting existing regulatory stations
  • Air quality measurements in smart city and urban applications
  • Roadside monitoring
  • Building automation
  • Air quality research New value in air quality measur ements The supplementary air quality measurement of AQT530 modernizes the way air quality can be monitored. It offers totally new value for money by measuring the most important pollutants in one compact package. AQT530 is available in different models, and configurations can be selected based on the needs. State-of-the-art technology For gas measurements AQT530 utilizes industry standard electrochemical gas sensor technology. By using proprietary advanced algorithms, individual factory calibration, and improved humidity robustness, parts per billion (ppb) concentrations at different environmental conditions can be measured reliably in one compact package. Algorithms compensate for the impact of ambient conditions and aging of the sensor elements, removing the need for costly gas sampling and equipment. Particles are measured with a state-of- the-art proprietary laser particle counter (LPC). Single particles scatter light and based on the scattered intensity and number of pulses detected, the particle sizes and mass concentrations are calculated. Easy to deploy in networks A QT530 is specifically designed for air quality monitoring networks in areas with traffic, road networks, or around transportation hubs. Thanks to its small weight, compact size, and good precision it is ideally suited for deployment especially in large air quality networks. The measurement data can be sent wirelessly to a web-based database with a gateway solution and it is also available locally through a serial interface. AQT530 can be paired with Vaisala Connected Compact Station BWS500 to provide a professional-grade complete network solution with best-in-class accuracy and reliability. Product model NO2 NO O 3 CO PM 1) Gases ✔ ✔ ✔ ✔ Particles ✔ Gas and particles ✔ ✔ Gases and particles 1) Includes PM 10, PM2 .5, PM1. Vaisala Air Quality Transmitter AQT530 measures the pollution c ontent of ambient air. AQT530 is available in different models for measuring gases, particles, or both.

Measurement performance – gases Property NO2 NO O 3 CO Concentration range 2000 ppb 2000 ppb 2000 ppb 10 000 ppb Detection limit 5 ppb 5 ppb 5 ppb 10 ppb Field performance – gases Property 1) NO2 2) NO O3 2) CO Correlation with reference 3) R2: 0.80 R 2: 0.75 R 2: 0.80 R 2: 0.85 Accuracy 4) 5 ppb 15 ppb 6 ppb 183 ppb Unit‑ to‑ unit correlation 5) R2: 0.98 R 2: 0.96 R 2: 0.95 R 2: 0.97 Precision 5) 3 ppb 3 ppb 4 ppb 25 ppb 1) All values are based on 1 ‑hour averages with factory calibration, no linear correction applied. Values are obtained from global field testing in major climate zones against reference instruments. The values represent typical values and may be different based on the location. 2) At 10 V/m RF field test, the presence of electromagnetic interference in the range of 800 … 900 MHz may cause additional deviation for NO2 and O3. 3) Typical R2 against a reference grade instrument derived from field tests globally. 4) Mean absolute error against reference. 5) Mean absolute difference of AQT530 reading from average reading of AQT530s. Measurement performance – environmental parameters Humidity Accuracy for sensor element 0 … 90 %RH: ±3 %RH 90 … 100 %RH: ±5 %RH Resolution 0.1 %RH Temperature Accuracy for sensor element 0.3 °C (0.17 °F) at +20 °C (+68 °F) Resolution 0.1 °C Pressure (indicative) Accuracy 15 hPa Resolution 1 hPa Operating environment Operating temperature −30 … +40 °C (−22 … +104 °F) 1) Storage temperature +20 … +25 °C (+68 … +77 °F) Operating humidity 15 … 100 %RH, non‑ condensing 2) 3) Storage humidity 20 … 75 %RH Operating pressure 800 … 1150 hPa IP rating IP65 4) 1) Optimal performance at −10 … +30 °C (−14 … +86 °F). 2) Optimal performance at 15 … 90 %RH. Operation in low-humidity environments may weaken the gas measurement performance. Operation in high-humidity environments may weaken the particle measurement performance. 3) Water uptake of particles may result in PM overestimation. In most cases this is indicated by the sensor. 4) Specified for gas measurement device only. Powering Operating voltage 10 - 25 V DC, max. 1 A at 10 V DC 1) Power consumption, max. peak 1) 10 W Power consumption (average with default settings) Gas and particle measurement 1.8 … 4.4 W 2) Gas measurement 1.4 … 3.8 W 3) Particle measurement 1.7 … 2.0 W 4) 1) Humidity management active, particle measurement active, temperature < 0 °C (32 °F). 2) Maximum consumption when humidity > 85 %RH, temperature < 0 °C (32 °F), default particle measurement cycle. 3) Maximum consumption when humidity > 85 %RH. 4) Maximum consumption when temperature < 0 °C (32 °F), default particle measurement cycle. Measur ement performance – particles Property PM2.5 PM10 Size range 1) 0.6 … 2.5 μm 0.6 … 10 μm Concentration range 2) 0 … 1000 μg/m3 0 … 2500 μg/m3 Detection limit 0.1 μg/m3 0.1 μg/m3 Accuracy 3) 5 % 6 % Precision 3) 4) 2 % 2 % 1) Spherical equivalent size of DEHS particles. Lower detection limit of 0.6 μm defined as 5 0 % de tection efficiency for DEHS particles. 2) Specified with ISO 12103‑1, A1 ultrafine test dust. 3) Measured against a certified reference grade instrument at room temperature using Arizona dust equivalent (ISO 12103-1, A1 Ultrafine test dust). PM2.5 measured at 150 μg/m3 and PM10 at 1300 μg/m3. Accuracy and precision are defined with 2 standard deviations. 4) Unit-to-unit variation. Defined as difference of AQT530 reading from average reading of AQT530s. Field performance – particles Property 1) PM2.5 PM10 Correlation with reference 2) R2: 0.65 R2: 0.75 Accuracy 3) 9 μg/m3 13 μg/m3 Unit‑ to‑ unit correlation 4) R2: 0.97 R2: 0.97 Precision 4) 2 μg/m3 3 μg/m3 1) All values are based on 1 ‑hour averages with factory calibration, no linear correction applied. Values are obtained from global field testing in major climate zones against different reference equivalent methods. The values represent typical values and may be different based on the location and reference instrument. Majority of particle mass within size range. 2) Typical R2 against a reference grade instrument derived from field tests globally. 3) Mean absolute error against reference. 4) Mean absolute difference of AQT530 reading from average reading of AQT530s. Data connection specifications Data output Modbusâ ASCII, Modbusâ RTU, ASCII CSV Serial data interface RS‑ 485 Maintenance interface 1) RS‑ 232 1) Recommended Vaisala USB maintenance cable kit (253163SET). Mechanical specifications Dimensions (H × Ø) 335 × 133 mm (13.19 × 5.24 in) Weight, with mounting kit 2.4 kg (5.29 lb) Color, radiation shield White (RAL9003) Material, base module Anodized aluminum Material, radiation shield Polycarbonate (PC) Power and data connector Standard 8‑ pin M12 male Compliance EU directives and regulations EMC Directive (2014/30/EU) REACH Regulation (EC 1907 /2006) RoHS Directive (2011/65/EU) amended by 2015/863 EMC immunity 1) EN 61326‑ 1, industrial environment EMC emissions CISPR 32 / EN 55032, Class B Cold IEC 60068‑ 2‑ 1 Dry heat IEC 60068‑ 2‑ 2 Damp heat IEC 60068‑ 2‑ 78 Eye safety IEC 60825‑ 1:2014 Class 1 laser product Compliance marks CE, China RoHS, FCC, RCM, UKCA 1) At 10 V/m RF field test, the presence of electromagnetic interference in the range of 800 … 900 MHz may cause additional deviation for NO2 and O3. CLASS 1 LASER PRODUCT Published by Vaisala | B211817EN-F © Vaisala 2023 All rights reserved. Any logos and/or product names are trademarks of Vaisala or its individual partners. Any reproduction, transfer, distribution or storage of information contained in this document is strictly prohibited. All specifications — technical included — are subject to change without notice. www.vaisala.com