Zhicheng ZHJH-C1106C Intelligent Safety Clean Bench with HEPA Failure Alert
| Brand | Zhicheng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | ZHJH-C1106C |
| Pricing | Upon Request |
| Airflow Pattern | Vertical Downflow |
| Work Surface | Single Opening |
| Working Area Dimensions (W×D×H) | 600 × 625 × 645 mm |
| Overall Dimensions (W×D×H) | 720 × 740 × 1700 mm |
| Net Weight | 118 kg |
| Power Supply | AC 220 V, 50/60 Hz |
| Rated Power | 380 W |
| Noise Level | ≤62 dB(A) |
| Illumination | ≥300 lx |
| Vibration Semi-Peak | ≤3 µm |
| HEPA Filtration Efficiency | ≥99.995% @ 0.3 µm |
| Cleanliness Class | ISO Class 5 (FS209E Class 100) |
| Microbial Contamination | ≤0.5 CFU/plate (90 mm Petri dish) |
| Adjustable Air Velocity Range | 0.1–1.0 m/s |
| Operational Air Velocity Range | 0.3–0.6 m/s (infinitely variable, ±0.05 m/s control accuracy) |
| Air Velocity Resolution | 0.1 m/s |
| HEPA Differential Pressure Range | 0–500 Pa |
| Pressure Display Accuracy | ±1% |
| Initial Resistance | ≤120 Pa (at maximum airflow) |
| Pre-filter | Washable aluminum mesh |
| UV Lamp | High-output quartz germicidal lamp (253.7 nm) |
| Control Interface | Backlit LCD touchscreen with Chinese UI |
| Operating Modes | Manual / Auto-selectable |
| Timer Functions | Cumulative runtime counter, programmable UV disinfection schedule |
| Safety Features | Dual-side tempered glass viewport, self-balancing sliding sash, stainless steel work surface (electropolished finish), rounded internal corners |
Overview
The Zhicheng ZHJH-C1106C Intelligent Safety Clean Bench is an ISO Class 5 (FS209E Class 100) vertical laminar flow workstation engineered for precision-controlled aseptic environments in life science and industrial laboratories. It employs a unidirectional downward airflow pattern generated by a low-noise, high-static-pressure centrifugal blower, passing through a certified HEPA filter (≥99.995% efficiency at 0.3 µm) to maintain particle concentration ≤3.5 particles/L for ≥0.5 µm particles within the work area. Unlike conventional clean benches, the ZHJH-C1106C integrates real-time HEPA health monitoring—measuring differential pressure across the filter media, detecting integrity breaches, and triggering multi-modal alerts prior to performance degradation. This architecture directly addresses critical gaps in biosafety management identified in legacy laminar flow systems, particularly in GxP-regulated workflows where filter failure may compromise sample integrity without operator awareness.
Key Features
- Real-time HEPA status monitoring with automatic differential pressure measurement (0–500 Pa range, ±1% accuracy), visualized on a backlit LCD interface
- Multi-stage HEPA alert system: predictive warning (pre-failure threshold), audible/visual alarm, and full Chinese-language display for HEPA rupture, clogging, or loss of integrity
- Infinitely adjustable air velocity (0.1–1.0 m/s) with closed-loop feedback control ensuring operational stability within 0.3–0.6 m/s at ±0.05 m/s accuracy and 0.1 m/s resolution
- Programmable UV sterilization cycle with user-defined start/stop timing and automatic interlock (UV deactivation upon sash movement)
- Self-balancing tempered glass sash with frictionless vertical travel and arbitrary positioning; dual side-view tempered glass panels for enhanced ergonomics and ambient light transmission
- Electropolished 304 stainless steel work surface with radiused internal corners and seamless welds for ISO-compliant cleaning and microbial recovery validation
- Cumulative runtime logging, clock function, and auto-switching between manual and pre-configured auto-mode operation
- Integrated pre-filter (washable aluminum mesh) extending HEPA service life and reducing maintenance frequency
Sample Compatibility & Compliance
The ZHJH-C1106C supports routine handling of sterile cell cultures, pharmaceutical compounding, microbiological assays, and sensitive electronic component assembly. Its design conforms to core requirements of ISO 14644-1 (cleanroom classification), ISO 14644-3 (test methods), and EN 12464-1 (lighting and ergonomics). While classified as a clean bench—not a biological safety cabinet—it meets applicable sections of NSF/ANSI 49 for airflow uniformity and particulate control when operated per manufacturer-specified protocols. The system supports GLP/GMP documentation workflows via timestamped event logs (UV activation, sash position changes, filter pressure deviations) and is compatible with laboratory audit trails under FDA 21 CFR Part 11 when integrated with validated LIMS platforms.
Software & Data Management
The embedded control firmware provides non-volatile storage of operational parameters including total runtime, UV exposure cycles, and HEPA pressure history. All displayed metrics—including real-time wind speed (m/s), differential pressure (Pa), cumulative airflow volume (m³), and HEPA status flags—are accessible via the front-panel LCD without external software. No proprietary drivers or cloud connectivity are required; data export is not supported natively, consistent with IEC 61000-4 electromagnetic compatibility standards for lab-grade instrumentation. For regulated environments, users may implement periodic manual logbook entries or integrate the unit into facility-wide environmental monitoring systems using analog 4–20 mA or digital RS-485 outputs (optional accessory).
Applications
- Aseptic preparation of mammalian and microbial cell cultures in academic and biotech R&D labs
- Compounding of non-hazardous sterile formulations in hospital pharmacies and contract manufacturing organizations (CMOs)
- Environmental monitoring sample processing (air, water, surface swabs) per ISO 14698 and USP
- Calibration and handling of reference standards in analytical chemistry and metrology laboratories
- Assembly and testing of microelectronics, optical components, and MEMS devices requiring particulate-free manipulation
- Teaching laboratories where visual HEPA status feedback enhances student understanding of filtration lifecycle management
FAQ
Does this unit qualify as a biological safety cabinet (BSC)?
No. The ZHJH-C1106C is a vertical laminar flow clean bench designed for product protection only—not personnel or environmental protection. It does not recirculate air through a dedicated exhaust duct nor incorporate a front intake grille for inward airflow. Users handling biohazards must select a Class II BSC compliant with NSF/ANSI 49.
Can the HEPA filter be replaced in-house?
Yes. Filter replacement follows standardized procedures documented in the operator manual. Replacement requires recalibration of the differential pressure sensor and verification of airflow uniformity per ISO 14644-3 Annex B. Zhicheng-certified technicians are recommended for initial commissioning and post-replacement certification.
Is the UV lamp intensity monitored or calibrated?
The system does not include a built-in UV radiometer. Intensity verification must be performed externally using NIST-traceable UV-C meters at 253.7 nm, typically every six months or after 1,000 hours of operation, per ISO 15858 guidelines.
What electrical safety certifications does the unit hold?
It complies with GB 4793.1–2019 (Chinese equivalent of IEC 61010-1) for laboratory electrical equipment. CE marking is not affixed; export configurations may require regional certification (e.g., UL 61010-1 for North America) via authorized third-party testing.
How is “failure alert” technically implemented?
The system continuously samples HEPA inlet/outlet static pressure via piezoresistive transducers. Deviation beyond preset thresholds—such as sustained >450 Pa differential (indicating clogging) or abrupt <50 Pa drop (suggesting seal breach or membrane rupture)—triggers tiered alerts: first a yellow status icon and soft beep, then red flashing LED + loud tone + bilingual text if unresolved within 60 seconds.
