WIGGENS WH-Series Temperature and Humidity Controlled Incubators

Overview

The WIGGENS WH-Series Temperature and Humidity Controlled Incubators are precision-engineered environmental chambers designed for stable, reproducible sample conditioning in regulated life science workflows. These incubators operate on a robust digital PID (Proportional-Integral-Derivative) temperature control architecture, delivering high-stability thermal environments across a standard operating range of ambient +5 °C to 60 °C (configurable humidity control available per model variant). The system’s core function is to maintain setpoint accuracy within ±0.3 °C under steady-state conditions—critical for cell culture maintenance, microbial growth studies, enzyme activity assays, stability testing per ICH Q1 guidelines, and long-term reagent storage. Each unit integrates redundant thermal safety layers: an independent mechanical over-temperature cutoff circuit, real-time deviation monitoring, and fail-safe power interruption logic—ensuring compliance with essential risk mitigation requirements outlined in ISO 14644-1 (cleanroom equipment safety) and EU Annex 1 (sterile product manufacturing environments).

Key Features

• Dual-sealed tempered glass inner door with low-emissivity coating—minimizes radiant heat loss while enabling uninterrupted visual monitoring without compromising chamber integrity.
• Stainless steel interior chamber and perforated, height-adjustable shelves—optimized for airflow uniformity, corrosion resistance, and ease of decontamination using validated cleaning agents (e.g., 70% ethanol, hydrogen peroxide vapor).
• Intelligent door-interlock system: automatically disables heating elements and circulation fans upon door opening; activates audible alert after 60 seconds of open state to prevent thermal drift and energy waste.
• Bias correction function—allows user-defined offset compensation (±5.0 °C) to correct for systematic sensor drift or localized thermal gradients, enhancing long-term calibration traceability.
• Energy-efficient insulation using halogen-free, low-conductivity polyurethane foam (λ ≤ 0.022 W/m·K), resulting in surface temperatures ≤40 °C at ambient 25 °C—eliminating operator burn hazards and reducing HVAC load.
• Modular design supports integration into centralized monitoring networks via optional RS485/Modbus RTU or Ethernet/IP interfaces—enabling remote parameter logging and alarm forwarding per 21 CFR Part 11 audit trail specifications.

Sample Compatibility & Compliance

The WH-Series accommodates a broad spectrum of biological and pharmaceutical samples—including Petri dishes, multi-well plates (6–96-well), Erlenmeyer flasks (up to 5 L), roller bottles, and sealed vials—without airflow turbulence-induced desiccation. Internal air circulation employs tangential fan geometry with laminar flow optimization, ensuring uniform temperature distribution (≤±0.8 °C spatial variation, measured per ASTM E2876-22). Units comply with EN 61000-6-3 (EMC emissions) and EN 61000-6-2 (immunity), and meet the mechanical safety requirements of EN 61010-1 for laboratory equipment. Documentation packages include Factory Acceptance Test (FAT) reports, IQ/OQ templates aligned with GAMP 5, and material declarations conforming to RoHS 2011/65/EU and REACH SVHC.

Software & Data Management

While the base configuration operates via intuitive front-panel controls with LED display, optional WIGGENS LogSoft™ v3.2 firmware enables comprehensive data governance. This platform provides time-stamped temperature/humidity logs with configurable sampling intervals (1 s to 60 min), password-protected user roles (Operator, Supervisor, Administrator), electronic signature support, and automatic export to CSV or PDF formats. All recorded events—including door openings, alarm triggers, setpoint changes, and bias adjustments—are retained with immutable timestamps and user IDs, satisfying ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) required for FDA and EMA inspections.

Applications

• Cell line expansion and maintenance (adherent and suspension cultures) under ISO 5-grade air quality conditions when paired with HEPA-filtered variants.
• Accelerated stability studies per ICH Q5C and Q1E protocols for biologics, small molecules, and excipients.
• Microbial enumeration and identification workflows compliant with ISO 7218 and USP /.
• Enzyme kinetics profiling requiring precise thermal ramping and hold sequences (via optional programmable controller).
• Long-term storage of reference standards, calibrants, and clinical trial materials under defined温湿度 conditions per WHO TRS 992 Annex 9.

FAQ

What is the recommended calibration interval for WH-Series incubators?
Annual calibration against NIST-traceable reference thermometers is advised; internal sensor verification can be performed quarterly using a calibrated dry-block calibrator.
Can the WH-Series be validated for GMP environments?
Yes—IQ/OQ documentation templates, as-built schematics, and FAT reports are provided; PQ execution requires site-specific protocol development aligned with Annex 15.
Is humidity control available on all WH models?
Humidity regulation (20–95% RH, ±3% RH accuracy) is standard on WH-650 and above; WH-05 through WH-25 offer temperature-only operation unless specified with optional humidification module.
Does the incubator support external data logging?
All models feature analog 0–10 V or 4–20 mA output for temperature; digital Modbus RTU (RS485) is available as factory-installed option for full parameter readout and control.
How is temperature uniformity verified during installation qualification?
Per ISO 14644-3, a minimum of 9 PT100 sensors are placed in a 3×3 grid across working volume at three vertical levels; mapping must demonstrate ≤±1.0 °C deviation from setpoint under loaded conditions.