APDA-371
Ambient Dust Monitor
The APDA-371 is a robust ambient dust (particulate matter) monitor that uses the proven principle of beta-ray attenuation on a tape filter. It provides accurate, automatic hourly measurements of PM levels—compliant with regulatory standards and engineered for reliable long-term outdoor deployment.
Why Choose APDA-371
Highly Accurate PM Detection – Uses beta-ray attenuation for precise measurement of particulate concentrations.
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Low-Maintenance Design – Operates continuously for weeks without needing operator intervention.
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Built-In Self-Diagnostics – Performs automatic zero/span checks and drift monitoring to ensure ongoing calibration.
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Convenient Data Interface – Stores digital data on-board with flexible output for easy retrieval and analysis.
Key Advantages of APDA-371
1.
Regulatory-Level Precision
Provides accurate quantification of PM, aligning with PM2.5 and PM10 standards.
2.
Long Unattended Operation
Operates continuously with minimal maintenance requirements.
3.
Automatic Calibration Checks
Automatic Calibration Checks
4.
Flexible Data Connectivity
Supports data access via LAN, RS-232, analog outputs, or external devices.
Technical Specifications of APDA-371
Measurement Principle | Particulate Concentration by Beta Ray Attenuation |
Application | PM10 or PM2,5 or TSP Measurement |
Range | 0-1,000mg/m3(standard), 0-1.000µg/m3 0-100, 200, 250, 500, 2000, 5000, 10.000µg/m3(special application) |
Lowest Detection Limit (1h) | < 4,8µg/m3 |
Lowest Detection Limit (24h) | < 1,0µg/m3 |
Measurement cycle time | 1 hour |
Flow Rate | 16,70 liters/minute |
Filter Tape | Glass fiber filter |
Span Check | Nominally 800µg/cm2 |
| Beta Source | C-14 (carbon-14), 60 μCi ±15 μCi (< 2.22 X 106 Beq), Half-Life 5730 years. |
| Beta Detector Type | Photomultiplier tube with scintillator |
| Operation Temperature | 0° to +50°C |
| Ambient Temperature | -40° to +55°C standard. Optional -50 °C temperature sensors available |
Ambient Humidity | 0 to 90% RH, non-condensing |
Data Interface | RS-232, LAN connecting terminal(TCP/IP), Analog (0-10V, 4-20mA, 0-16mA) |
Power | AC100 - 230 VAC± 10V, 50/60 Hz, approx. 0,4kW |
Dimensions | 310(H) x 430(W) x 400(D) mm |
Mass | 24.5 kg without Accessories |
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