DreamLab DL-BE80V/120V Series Ductless Balance Enclosure with Vibration Isolation
| Brand | DreamLab |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Models | DL-BE80V / DL-BE80VT / DL-BE120V / DL-BE120VT |
| Pricing | Upon Request |
Overview
The DreamLab DL-BE80V and DL-BE120V series ductless balance enclosures are engineered for high-precision weighing applications in regulated laboratory environments—particularly pharmaceutical R&D, QC/QA labs, and analytical chemistry facilities where operator safety, sample integrity, and measurement stability are non-negotiable. Unlike conventional fume hoods or ventilated workstations, these enclosures operate on a closed-loop, recirculating airflow principle: ambient room air is drawn horizontally across the work surface toward the operator, mixed with airborne particulates and volatile organic compounds (VOCs) generated during sample handling, then passed through a dual-stage filtration system (pre-filter + activated carbon + HEPA or ULPA-grade particulate filter), and finally returned to the lab as clean, conditioned air. This design eliminates external ducting requirements while maintaining a stable, inward-facing negative pressure gradient—ensuring containment efficiency compliant with ISO 14644-1 Class 5 (ISO Class 5) background air quality standards when used with appropriate filters. Critically, the enclosure integrates passive vibration isolation via an optimized rigid monocoque chassis and damping base structure—enabling stable operation of analytical balances with readability down to 0.01 mg (10⁻⁵ g) without reliance on external marble slabs or active isolation tables.
Key Features
- Patented isobaric pressure plate design ensures uniform face velocity distribution and eliminates turbulence-induced weighing drift
- Adjustable horizontal inflow velocity (0.3–0.5 m/s), continuously monitored via integrated high-accuracy hot-wire anemometer
- Two-stage filtration: G4 pre-filter + custom-blend activated carbon + H14 HEPA or U15 ULPA particulate filter (filter class configurable per application)
- Fan assembly located downstream of filters—brushless DC motor, spark-free construction, noise level ≤60 dB(A) at 1 m
- Ergonomic 2-section folding sash with full 360° visibility; tempered safety glass with anti-static coating
- Integrated alarm system triggers visual (LED) and audible alerts upon airflow deviation >10% from setpoint or filter saturation
- Spill-containment base with integral overflow lip and chemical-resistant PP or ceramic work surface options
- Modular waste management: sealed disposal port with transparent polyethylene liner compatibility and side-mounted filter replacement access
Sample Compatibility & Compliance
These enclosures support safe handling of low-to-moderate volatility compounds (e.g., APIs, cytostatics, reference standards), fine powders (including nanomaterials), and hygroscopic or electrostatically charged samples. Filter configurations meet ASTM D5465–22 (carbon adsorption capacity testing) and EN 1822–1:2022 (HEPA/ULPA classification). The system complies with EU GMP Annex 1 (2022), USP <1117>, and China’s
Software & Data Management
Standard models include a microprocessor-based control panel with real-time display of face velocity, cumulative runtime, and filter service interval. Optional upgrade enables Ethernet/IP connectivity, Modbus TCP interface, and integration into LIMS or MES platforms. All logged parameters—including timestamped airflow deviations, door position status, and maintenance alerts—are stored locally with ≥12 months retention and exportable as CSV or PDF reports. System firmware supports GLP/GMP-aligned user role management (admin/operator/auditor) and electronic signature capability for critical actions.
Applications
- Weighing of potent active pharmaceutical ingredients (pAPIs) under ISO Class 5 background conditions
- Preparation of reference standards and calibration solutions requiring microgram-level accuracy
- Handling of nanomaterials, catalysts, and pyrophoric compounds where inert atmosphere is not required but containment is essential
- Stability-indicating assays involving volatile solvents (e.g., dichloromethane, hexane) during gravimetric sample transfer
- Mobile lab deployment: compact footprint, castor-mount option (FEMA-rated locking wheels), and 100–240 V AC universal input
FAQ
What filter types are certified for use with this enclosure?
HEPA H14 (EN 1822) and ULPA U15 filters are standard; activated carbon beds are customized based on VOC polarity and molecular weight—certification documentation provided per batch.
Can this unit be validated per IQ/OQ protocols?
Yes—factory-supplied validation templates (DQ/IQ/OQ/PQ) align with ASTM E2500 and ISPE GAMP 5; optional third-party qualification support available.
Is vibration isolation performance independently verified?
Yes—tested per ISO 2631-1:2018 using triaxial accelerometers; typical transmissibility ratio <0.15 at 10 Hz for DL-BE120V configuration.
Does the enclosure require annual recertification?
Per ISO 14644-3 and EU GMP Annex 1, airflow uniformity and containment integrity must be verified semiannually; filter replacement intervals depend on usage intensity and challenge agents.
Can it accommodate a 120 mm diameter balance pan?
DL-BE120V model provides 1200 × 600 × 500 mm (W × D × H) internal dimensions—compatible with all major analytical balances up to 120 mm pan diameter and 350 mm height.
