YSEI SHH-400L Biochemical Incubator

Overview

The YSEI SHH-400L Biochemical Incubator is a precision-engineered, forced-air laboratory incubator designed for stable, reproducible temperature control in life science applications requiring non-humidified, low-to-moderate temperature environments. It operates on the principle of active thermal regulation via a hermetically sealed refrigeration circuit combined with a high-efficiency axial fan system to ensure uniform air distribution throughout the 400 L working chamber. Unlike CO₂ or humidity-controlled incubators, the SHH-400L is optimized for biochemical assays, microbial culture maintenance, plant tissue propagation, and environmental simulation studies where precise thermal stability—not gas composition or moisture saturation—is the primary performance criterion. Its architecture integrates dual PID temperature control loops, independent overtemperature cutoff hardware, and real-time thermal mapping capability—ensuring compliance with fundamental requirements for GLP-aligned experimental workflows.

Key Features

• Compressor-based cooling system with optimized refrigerant charge and adaptive duty-cycle modulation for consistent operation across the full 15–50 °C range
• Forced convection airflow driven by a low-vibration, brushless DC fan with adjustable speed profile to minimize thermal stratification and mechanical disturbance to sensitive cultures
• Dual-stage thermal safety architecture: programmable software limit + independent hardware thermostat for fail-safe overtemperature protection
• Integrated thermal printer supporting configurable logging intervals (1 min to 24 h), generating time-stamped, tamper-evident paper records compliant with audit trail requirements per ISO/IEC 17025 and FDA 21 CFR Part 11 Annex 11 guidance
• Embedded GSM module enabling SMS alerts for critical events—including power interruption, temperature deviation beyond user-defined thresholds, and compressor fault conditions—with multi-device group management capability
• Centralized remote monitoring platform accessible via standard TCP/IP network; supports up to 30 SHH-series units per host PC with secure HTTPS-based web interface and role-based access control
• Energy-optimized thermal insulation using high-density polyurethane foam (≥50 mm wall thickness) and low-emissivity interior surfaces to reduce standby power consumption and acoustic emissions (<52 dB(A) at 1 m)

Sample Compatibility & Compliance

The SHH-400L accommodates standard laboratory vessels including Petri dishes, multi-well plates (6–96-well), Erlenmeyer flasks (up to 2 L), and culture bottles—without requiring rack customization. Its stainless-steel interior (SUS304), rounded corners, and seamless welds facilitate routine cleaning and meet basic hygiene requirements for non-sterile but controlled environment applications. The unit conforms to GB/T 28851–2012 “Technical Requirements for Biochemical Incubators”, and its electrical design complies with IEC 61010-1:2010 for laboratory equipment safety. While not certified to UL or CE for export markets, its control architecture supports IQ/OQ documentation packages—including traceable calibration certificates, sensor linearity verification reports, and alarm response validation protocols—for integration into regulated quality systems (e.g., pharmaceutical QC labs operating under GMP or ISO 13485).

Software & Data Management

The embedded firmware provides local data logging to internal flash memory (≥30 days of 1-min interval readings) and simultaneous output to thermal printer. All temperature records include UTC timestamp, probe ID, and deviation flags. Remote access enables real-time parameter adjustment (setpoint, alarm thresholds, print interval), historical data export in CSV format, and firmware updates via encrypted HTTP(S) channel. Audit trail functionality logs all user-initiated actions—including login/logout events, configuration changes, and manual override activations—with immutable timestamps. Optional YSEI LabLink™ software extends functionality with multi-unit trending, statistical process control (SPC) charting, and automated report generation aligned with ALCOA+ data integrity principles.

Applications

• Bacterial and fungal culture maintenance at sub-ambient or mesophilic temperatures (e.g., E. coli storage at 4 °C analog, Aspergillus growth at 30 °C)
• Enzyme activity assays requiring thermal stabilization during kinetic measurement windows
• Seed germination and plant seedling development under controlled photoperiod-independent conditions
• Stability testing of diagnostic reagents and biologics per ICH Q1A(R2) guidelines (accelerated and intermediate condition screening)
• Environmental stress simulation for ecotoxicology studies (e.g., thermal tolerance profiling of aquatic microfauna)
• Pre-incubation conditioning of samples prior to downstream analysis (e.g., HPLC sample equilibration, ELISA plate pre-warming)

FAQ

Does the SHH-400L support humidity control?
No. This model is a dry-air biochemical incubator; relative humidity is uncontrolled and typically ranges between 30–60% RH depending on ambient conditions and door-opening frequency.
Is the thermal printer compatible with LIMS integration?
The printed output is human-readable only; however, digital logs exported via LabLink™ software are structured CSV files compatible with common LIMS ingestion pipelines.
What validation documentation is provided?
YSEI supplies IQ/OQ protocol templates, factory calibration certificates (NIST-traceable PT100 sensors), and installation checklists. On-site OQ execution and third-party certification services are available upon request.
Can the unit operate continuously at 15 °C in a 35 °C ambient room?
Yes—its compressor system and thermal insulation are rated for continuous operation under maximum ambient load per GB/T 28851–2012 Annex B test conditions.
Is remote firmware update supported over cellular networks?
Firmware updates require local network connectivity (Ethernet/Wi-Fi); GSM is used exclusively for alert transmission, not data upload/download.