Biochemical Incubator SHH-250LD / SHH-150LD

Overview

The Biochemical Incubator SHH-250LD and SHH-150LD are precision-engineered laboratory incubators designed for stable, uniform thermal environments essential in biochemical research, microbiological culture, and environmental testing applications. These units operate on a forced-air convection principle, ensuring consistent heat distribution across the entire chamber volume without reliance on humidity control—making them ideal for non-hygroscopic cell and bacterial cultivation, as well as standardized BOD (Biochemical Oxygen Demand) water quality analysis per ISO 5815-1 and APHA Standard Methods 5210B. Constructed with a double-layer insulated stainless steel inner chamber and powder-coated cold-rolled steel exterior, the SHH series delivers mechanical robustness and long-term dimensional stability under continuous operation. The incubators comply with Q/WD11–2001 “Technical Specifications for Biochemical Incubators” and align with foundational design principles referenced in IEC 61010-1 for laboratory electrical equipment safety.

Key Features

• Microprocessor-based PID temperature controller with high-resolution digital display (0.1 °C resolution), enabling precise setpoint retention and rapid thermal recovery after door opening;
• Double-wall insulation with high-density polyurethane foam (≥35 kg/m³) minimizing thermal bridging and reducing energy consumption by up to 22% compared to single-wall alternatives;
• Stainless steel interior chamber (AISI 304 grade) with seamless welding and rounded corners for easy decontamination and compliance with GLP cleaning validation protocols;
• Dual independent safety systems: adjustable overtemperature cut-off (user-definable limit ≥45 °C) and hardware-based short-circuit protection integrated into the main power circuitry;
• Large observation window with low-emissivity tempered glass and anti-fog coating, allowing uninterrupted visual monitoring without compromising thermal integrity;
• Modular panel assembly architecture facilitates field serviceability, component replacement, and future retrofitting—consistent with ISO 9001-certified manufacturing practices observed in Tier-1 OEM facilities.

Sample Compatibility & Compliance

The SHH-250LD and SHH-150LD support standard laboratory vessels including Petri dishes (up to 150 mm diameter), multi-well plates (6–96-well), Erlenmeyer flasks (up to 2 L), and test tube racks. Chamber shelving is adjustable in 25 mm increments and rated for static loads up to 15 kg per shelf. Units meet electromagnetic compatibility requirements per CISPR 11 Group 1 Class A and undergo factory calibration traceable to NIM (National Institute of Metrology, China) standards. While not certified for IVD or clinical diagnostics use, their thermal performance satisfies prerequisite conditions outlined in USP for non-sterile compounding environment qualification and ASTM E171 for accelerated aging studies requiring controlled thermal exposure.

Software & Data Management

These incubators operate via embedded firmware with no external PC dependency; however, optional RS-485 Modbus RTU interface (available upon request) enables integration into centralized LabVantage or Siemens Desigo CC building management systems. All temperature logging—including setpoint, actual chamber reading, alarm events, and door-open duration—is stored internally for ≥30 days (1-minute intervals). Audit trail functionality supports 21 CFR Part 11 readiness when paired with validated third-party data acquisition software, including timestamped operator ID tagging and immutable record generation. Firmware updates are performed via secure USB port using digitally signed binaries verified against SHA-256 checksums.

Applications

• Microbiological culture of mesophilic bacteria (e.g., Escherichia coli, Bacillus subtilis) and fungi under ISO 6222-compliant conditions;
• BOD₅ determination in wastewater and surface water samples per EPA Method 405.1 and ISO 5815-1;
• Enzyme activity assays requiring tightly bounded thermal profiles (e.g., amylase, protease kinetics at 37 °C);
• Seed germination and plant tissue culture pre-incubation in agricultural research laboratories;
• Quality control stability testing of reagents and diagnostic kits under ICH Q1A(R2) long-term storage conditions (25 ±2 °C / 60 ±5% RH — when used in conjunction with external humidity chambers).

FAQ

What is the maximum ambient temperature for reliable operation?
The SHH series is rated for continuous operation in ambient environments up to 30 °C. At ambient temperatures exceeding 32 °C, cooling capacity diminishes and may affect temperature uniformity—installation in air-conditioned labs is recommended.
Can the incubator be validated for GMP environments?
Yes. IQ/OQ documentation packages are available, including sensor calibration certificates (NIST-traceable Pt100 probes), mapping reports (per ISO 14644-3), and alarm response verification protocols compliant with Annex 15 of the EU GMP Guide.
Is remote monitoring supported natively?
No native Ethernet or Wi-Fi module is included; however, the RS-485 interface allows connection to industrial gateways (e.g., Moxa EDS-G205A) for SNMP or MQTT-based telemetry within existing lab networks.
What maintenance intervals are recommended?
Filter cleaning every 90 days, door gasket inspection biannually, and full thermal mapping every 12 months—or after any major relocation or chamber modification.
Are custom chamber configurations available?
Yes. Optional accessories include reinforced shelves (20 kg load rating), CO₂-compatible internal ports, and vibration-dampened mounting frames for sensitive optical assays—subject to engineering review and lead-time confirmation.