Erlab S321W Smart Filtered Balance Enclosure
| Brand | Erlab |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | S321W Smart |
| Price Range | USD 7,000–14,000 (FOB) |
| Construction | Fully Steel Enclosure |
| Ventilation Type | Ductless (Recirculating + Exhaust) |
| Air Intake | Front-Access Low-Velocity Inlet |
| Application Scope | Handling Hazardous Chemicals & Potent Active Substances (OEB 3–5) |
| Exhaust Configuration | Top-Mounted Exhaust |
| Average Face Velocity | 0.3–0.5 m/s |
| Total Airflow | 220 m³/h |
| Lighting | Integrated LED (≥400 lux at work surface) |
| Rated Power | 65 W |
| Sound Pressure Level | <52 dB(A) |
| Operator Capacity | 1–2 Users |
| Filtration Efficiency | >99.995% for particles ≥0.3 µm (HEPA H14) |
| Leakage Rate | <0.1 µg/m³ (validated per EN 14175-3 & ASTM E1198 for containment performance) |
Overview
The Erlab S321W Smart Filtered Balance Enclosure is an engineered solution for high-precision gravimetric operations in environments requiring strict operator protection and environmental containment. Designed specifically for analytical balance use under ISO 17025-compliant laboratories, it operates on a dual-mode ductless principle: up to 70% of conditioned air is recirculated after multi-stage filtration, while the remainder is exhausted externally—eliminating dependency on fixed HVAC infrastructure or building exhaust ductwork. Its aerodynamic front inlet and laminar top-exhaust flow path ensure uniform face velocity (0.3–0.5 m/s), minimizing turbulence-induced weighing errors. The enclosure meets OEB 3–5 containment requirements per ISPE Guidelines and EU GMP Annex 1, validated through tracer gas (SF₆) testing and aerosol challenge protocols (EN 14175-3). Structural integrity is maintained via fully welded cold-rolled steel housing with epoxy-powder-coated finish, offering chemical resistance and long-term dimensional stability.
Key Features
- SmartStatus™ real-time monitoring system with visual LED indicators and audible alerts for filter saturation, airflow deviation, and door position anomalies
- Integrated high-resolution digital anemometer with continuous face velocity logging (0.01 m/s resolution) and automatic alarm triggering below 0.28 m/s
- Multi-stage filtration: Pre-filter (G4), HEPA H14 (EN 1822-1), and deep-bed activated carbon + chemisorbent media optimized for volatile organic compounds (VOCs), amines, and low-molecular-weight solvents
- Anti-vibration base plate compatible with microbalances (≤1 µg readability); optional granite or stainless-steel work surface available
- Front sash with counterbalanced lift mechanism and ergonomic stop positions (200 mm / 300 mm / 400 mm openings)
- Compliance-ready audit trail: All operational events (filter runtime, airflow logs, door cycles) stored locally for ≥12 months
Sample Compatibility & Compliance
The S321W Smart accommodates standard analytical balances (up to 350 × 450 mm footprint) and supports open-vessel weighing, powder dispensing, and lyophilized API handling. It complies with EN 14175-3 (fume hood performance), ASTM E1198 (containment verification), and ISO 15714 (airflow classification). For regulated environments, it supports 21 CFR Part 11-compliant data export when paired with Erlab’s LabManager™ software. Containment validation reports—including leakage rates (<0.1 µg/m³ for sodium chloride challenge at OEL5-equivalent concentration)—are provided with each unit. CE marking, RoHS compliance, and UL/CSA recognition for electrical safety are standard.
Software & Data Management
LabManager™ desktop application enables centralized configuration, remote firmware updates, and export of CSV-formatted operational logs (airflow trends, filter life estimation, event timestamps). All parameters adhere to ALCOA+ principles: Attributable, Legible, Contemporaneous, Original, Accurate, and Complete. Audit trails are immutable and timestamped with NTP-synchronized clocks. Optional integration with LIMS via OPC UA or Modbus TCP allows automated recording of balance session metadata alongside enclosure status.
Applications
- Weighing of highly potent active pharmaceutical ingredients (HPAPIs) in R&D and pilot-scale manufacturing
- Preparation of reference standards and certified reference materials (CRMs) under ISO/IEC 17034 conditions
- Stability-indicating assay development where solvent vapors must not interfere with detector sensitivity
- Environmental lab analysis of trace metals and persistent organic pollutants (POPs), preventing cross-contamination
- Academic research involving neurotoxic compounds, cytostatics, or endocrine disruptors requiring OEB 4 containment
FAQ
What is the recommended filter replacement interval?
Filter service life depends on usage intensity and chemical profile; typical range is 6–12 months. LabManager™ calculates real-time remaining life based on cumulative airflow and VOC breakthrough modeling.
Can the S321W Smart be installed on a mobile cart?
Yes—its self-contained design and low center of gravity allow secure mounting on ISO-certified laboratory carts with locking casters (minimum load rating: 150 kg).
Does it support GLP/GMP audit requirements?
Yes—full electronic records, user-access logs, and calibration traceability (via optional NIST-traceable anemometer verification kit) meet FDA and EMA expectations for instrument qualification (IQ/OQ/PQ).
Is external exhaust mandatory?
No—the system operates fully ductless by default; external exhaust is optional for specific solvent-heavy workflows requiring 100% exhaust mode.
How is vibration isolation achieved without external dampening mounts?
The base frame integrates elastomeric isolators tuned to 8–12 Hz natural frequency, decoupling from floor-borne vibrations while maintaining structural rigidity for sub-microgram stability.
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