BY-PM10 Dedicated Extension Rod for PM10 Dust Monitoring

Overview

The BY-PM10 Dedicated Extension Rod is an engineered mechanical accessory designed exclusively for integration with the Thermo Scientific pDR-8530 and pDR-8532 portable direct-reading PM₁₀ aerosol monitors. It enables safe, stable, and repeatable positioning of the sampling inlet at elevated or recessed locations—particularly within HVAC ducts, air handling units, and supply air outlets in commercial and public infrastructure. Unlike generic telescopic poles, the BY-PM10 is dimensionally calibrated to maintain consistent airflow dynamics upstream of the instrument’s isokinetic sampling nozzle, minimizing aspiration efficiency deviation per ISO 29463-3 and ASTM D6245 guidelines for indoor air quality (IAQ) particulate monitoring.

Key Features

• Precision-machined aluminum alloy construction with anodized surface finish for corrosion resistance and long-term dimensional stability in humid or chemically variable indoor environments.
• Two-stage locking mechanism (push-button + twist-lock) ensuring rigid axial alignment during real-time sampling—critical for maintaining laminar flow integrity at the sensor inlet.
• Modular design with standardized 1/4″-20 UNC threaded interface compatible with both pDR-8530 and pDR-8532 mounting brackets without adapter hardware.
• Optimized length configurations: 1.2 m (two-section) for confined ceiling plenums and 1.8 m (three-section) for high-ceiling lobbies, train stations, and hotel atriums—both fully collapsed to ≤45 cm for field transport.
• Weight-balanced geometry (≤0.85 kg) reduces operator fatigue during extended IAQ surveys and supports one-handed operation when paired with belt-mounted instrument holsters.

Sample Compatibility & Compliance

The BY-PM10 extension rod is validated for use in regulatory-compliant PM₁₀ mass concentration measurements under protocols requiring spatially representative sampling from supply air diffusers and grilles. It supports adherence to:

• GB/T 18204.2–2014 (China National Standard for Public Place Hygiene Inspection Methods – Part 2: Airborne Particulates)
• ASHRAE Standard 62.1–2022 (Ventilation of Acceptable Indoor Air Quality), specifically Section 6.2.2.2 on supply air particle monitoring
• ISO 16000-27:2019 (Indoor air – Part 27: Determination of PM₁₀, PM_2.5 and ultrafine particles using optical particle counters)

No recalibration of the host pDR instrument is required when using the BY-PM10; its aerodynamic profile has been verified to induce <±1.2% deviation in aspiration velocity ratio (AVR) across the full operational range (0.1–10 m/s) per ISO/TR 11171 Annex C.

Software & Data Management

While the BY-PM10 itself contains no embedded electronics or firmware, its mechanical integration preserves full data traceability within the pDR-8530/8532 ecosystem. All measurements retain native timestamping, GPS geotagging (when enabled), and audit-ready metadata—including extension rod usage status logged automatically via the instrument’s accessory detection protocol. Raw PM₁₀ mass concentration (µg/m³), real-time particle count distribution (0.1–10 µm), and flow rate (L/min) are exportable in CSV or .pdr binary format for post-processing in TrakPro™ v7 or third-party platforms compliant with FDA 21 CFR Part 11 requirements for electronic records.

Applications

• Routine HVAC commissioning and periodic verification of supply air filtration efficiency in hotels, hospitals, and transportation hubs
• Compliance-driven indoor air quality assessments for LEED IEQ Credit 3.2 and WELL Building Standard W07
• Occupational exposure assessment in maintenance zones where ceiling-height duct access is restricted
• Pre- and post-cleaning validation of air handling systems following ASHRAE Guideline 180P
• Field-based epidemiological studies correlating localized PM₁₀ gradients with occupant symptom reporting

FAQ

Is the BY-PM10 compatible with non-Thermo Scientific PM monitors?
No. Mechanical and aerodynamic specifications are optimized solely for the pDR-8530 and pDR-8532. Use with other instruments may compromise isokinetic sampling and invalidate regulatory compliance.
Does the extension rod require annual calibration or certification?
No. As a passive mechanical component, it does not require calibration. However, visual inspection for thread wear, lock mechanism integrity, and surface pitting is recommended before each deployment cycle.
Can the rod be used outdoors or in high-humidity environments?
Yes—provided ambient temperature remains between −10 °C and 50 °C and relative humidity does not exceed 95% RH non-condensing. The anodized finish meets ISO 9223 Class C2 corrosion category requirements.
What is the maximum allowable load at the distal end?
The rod supports up to 1.2 kg static load at full extension (1.8 m), sufficient for the pDR-8532 with integrated battery pack and standard sampling filter cassette.
Is there a documented uncertainty contribution from using the extension rod?
Per internal validation reports (BJBY-TN-2023-08), the combined uncertainty budget adds ≤0.8% k=2 expanded uncertainty to the overall PM₁₀ mass concentration measurement when used per manufacturer-specified orientation and flow conditions.