YINHEKEJI FCD-50 Standard Dual-Head Dust Sampler

Overview

The YINHEKEJI FCD-50 Standard Dual-Head Dust Sampler is a portable, microprocessor-controlled gravimetric sampling instrument engineered for simultaneous collection of airborne particulate matter in occupational and environmental monitoring applications. It operates on the principle of constant-flow aspiration through standardized filter media—typically 40 mm diameter cellulose ester or polyvinyl chloride (PVC) filters—enabling quantitative determination of total dust mass concentration (mg/m³) in accordance with ISO 7708:1995, EN 481:1993, and OSHA Method ID-142. The dual-head configuration permits concurrent sampling at two independent flow rates or under identical conditions for statistical replication, supporting method validation and quality assurance protocols required in GLP-compliant laboratories and industrial hygiene surveys.

Key Features

• Dual independent sampling channels with selectable flow ranges: 1–10 L/min, 5–25 L/min, or 5–30 L/min—each calibrated and independently controllable via integrated digital flow regulation.
• High-efficiency metal vane vacuum pump delivering sustained negative pressure >1000 Pa, ensuring stable aspiration even under variable filter loading or elevated backpressure conditions.
• LCD graphical interface with intuitive menu navigation, supporting multilingual prompt display (English firmware available), real-time parameter monitoring, and interactive timer programming.
• Precision timing system with ±0.01% accuracy over full operational range; supports fixed-duration, delayed-start, and mid-sequence pause/resume functions to accommodate complex field protocols.
• Integrated battery management system providing real-time voltage, state-of-charge, and charging progress indication—compatible with both onboard DC operation and AC mains charging via included 8.4 V/1000 mA adapter.
• Compact ergonomic housing (220 × 135 × 150 mm; 3.5 kg) designed for belt-mounting or tripod deployment; noise emission <75 dB(A) ensures non-disruptive use in office, laboratory, or production floor environments.

Sample Compatibility & Compliance

The FCD-50 accommodates standard 40 mm diameter filter cassettes for total dust collection per NIOSH Manual of Analytical Methods (NMAM) Chapter 0500 and ISO 7708 Annex A. Optional cyclone adapters (e.g., IOM, GK2.69, or Higgins-Dewell) enable compliant respirable dust fractionation in accordance with ISO 7708:1995 and ACGIH TLV® particle size-selective criteria. All flow paths are constructed from chemically inert, non-shedding materials (anodized aluminum, stainless steel, and food-grade silicone tubing) to prevent sample contamination. Device calibration traceability aligns with ISO/IEC 17025 requirements when performed using NIST-traceable primary standards and certified rotameters or electronic calibrators.

Software & Data Management

While the FCD-50 operates as a standalone field instrument without mandatory PC connectivity, its embedded timer logs sampling start time, duration, and termination status—data accessible via LCD review or manual transcription into LIMS or Excel-based exposure databases. For audit readiness, users may document calibration records, filter lot numbers, pre/post-weighing data, and environmental parameters (temperature, RH) in accordance with OSHA 1910.1200 and EU Directive 2004/37/EC. Firmware supports configurable auto-shutdown and low-battery warnings to ensure data integrity across multi-shift deployments. No proprietary software or cloud dependency is required—consistent with FDA 21 CFR Part 11 principles of simplicity, transparency, and user-controlled recordkeeping.

Applications

• Occupational hygiene assessments in mining, construction, foundries, woodworking, and pharmaceutical manufacturing facilities.
• Compliance verification against national permissible exposure limits (PELs), such as China’s GBZ 2.1–2019, US OSHA PELs, or EU limit values under Directive 2004/37/EC.
• Educational demonstrations in university-level industrial hygiene, environmental science, and safety engineering curricula.
• Baseline ambient air quality screening in peri-urban industrial zones and waste processing sites.
• Method development and inter-laboratory comparison studies requiring paired-sample acquisition under identical meteorological and operational conditions.

FAQ

What filter types are compatible with the FCD-50?
Standard 40 mm diameter membrane filters—including mixed cellulose ester (MCE), polyvinyl chloride (PVC), and polycarbonate—are supported. Filter selection must match analytical requirements (e.g., MCE for gravimetric analysis, PVC for subsequent XRD or SEM-EDS).

Can the FCD-50 be used for respirable dust sampling?
Yes, when fitted with an ISO 7708-compliant cyclone separator (sold separately), the instrument meets respirable dust size-selective criteria. Calibration of the complete assembly—including cyclone and pump—is required prior to use.

Is the flow rate calibrated per channel?
Each sampling head features independent flow control and factory calibration. Users should verify flow accuracy before each sampling campaign using a primary standard calibrator (e.g., bubble meter or electronic flow calibrator).

Does the device meet international regulatory requirements for workplace monitoring?
The FCD-50 conforms to core functional and performance criteria referenced in ISO 7708, EN 481, and NIOSH NMAM methods. Final compliance with jurisdiction-specific mandates depends on proper application, calibration, and documentation practices by the end user.

How is battery life affected by flow rate and ambient temperature?
At nominal 5 L/min and 25 °C, runtime exceeds 8 hours. Higher flow rates (>20 L/min) or sub-zero temperatures reduce effective capacity; users should conduct pre-deployment battery stress tests under anticipated field conditions.