AOA 200 Atmospheric heavy metal online analyzer is an online heavy metal continuous monitor independently developed by LANScientific fusion of X-Ray fluorescence nondestructive testing technology, β -Ray absorption detection technology and air particulate matter automatic enrichment technology, in line with the United States EPA IO-3.3 standard method. It can not only monitor the mass concentration of air particles, but also quantitatively analyze the elements in the particles at the same time. It can realize the monitoring of low content of lead, cadmium, chromium, arsenic and other heavy metals in the air particles and the collaborative measurement of PM concentration, unattended, and long-term automatic.
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| Working power supply | 220VAC±10%，50Hz±1Hz |
| Measuring ambient temperature | -40～50℃ |
| Measuring ambient humidity | 0%RH～90%RH |
| Operating temperature of the host | 0℃～40℃ |
| Humidity of the host operating environment | 30%RH～60%RH |
| Size | 435mm×510mm×660mm（L×W×H） |
| Way to work | Continuous automatic monitoring; One year of trouble-free operation and self-recovery function |
| Applicable standards | HM:US EPA IO-3.3 Standard Method "Determination of Heavy Metals in Environmental Particles by X-ray Fluorescence Spectrometry" PM: HJ653-2013 "Ambient Air Particulate Matter (PM10 and PM2.5) Continuous Monitoring System technical Requirements and Detection methods" |
| The control mode | Computer control, and self-diagnosis and setting function, real-time status monitoring function, and can store more than ten years of monitoring data |
| Interface | Chinese or English operation interface, touch screen operation, display real-time sampling flow, sampling time, measurement status, heavy metal concentration value (standard state or non-standard state can be selected), content curve and other information |
| Installation | Fixed station room standard cabinet installation or mobile truck installation |
| Monitoring indicators | 1. TSP/PM10/PM2.5 mass concentration 2. Simultaneously monitor Pb (lead), Cd (cadmium), Hg (mercury), As (arsenic) and other 30 elements (other elements can be expanded according to user's subsequent requirements) |
| Measuring range | HM：0-100μg/m3 PM：0-10mg/m3 |
| Detection limit | HM：10 pg/m3Magnitude (sampling time 1H, flow rate 20L/min) PM：＜0.5μg/m3(24H average) |
| Precision | HM：＜15%（Pb、Cd、As sampling time4H） PM：±5μg/m3(in 24H) |
