WIGGENS WB-350S Metal Bath Heating Module

Overview

The WIGGENS WB-350S Metal Bath Heating Module is a precision-engineered dry block heater designed for consistent, uniform thermal treatment of multiple small-volume samples in parallel—ideal for applications requiring reproducible incubation, enzymatic reactions, sample thawing, or reagent pre-warming in molecular biology, clinical diagnostics, and pharmaceutical QC laboratories. Operating on the principle of conductive heat transfer via solid aluminum heating blocks, the WB-350S delivers stable thermal environments without reliance on circulating fluids or open baths, eliminating contamination risks and evaporation concerns associated with water baths. Its PID-controlled feedback loop ensures minimal overshoot and rapid stabilization at user-defined setpoints across its full operating range (+5 to 130 °C), making it suitable for both low-temperature enzyme activation and high-temperature denaturation protocols.

Key Features

• PID microprocessor-based temperature control with real-time feedback for ±0.1 °C accuracy and <0.1 °C fluctuation at 80 °C—validated per ISO/IEC 17025 traceable calibration practices.
• VFD (Vacuum Fluorescent Display) interface showing simultaneous setpoint and actual temperature, with intuitive touch-sensitive controls for parameter entry and timer configuration.
• Dual-mode programmable timer: (1) delay start upon reaching target temperature; (2) immediate countdown from activation—supporting GLP-compliant process documentation.
• Interchangeable anodized aluminum heating blocks engineered for optimal thermal conductivity and chemical resistance; each block features precisely machined wells matching common tube formats (e.g., 0.2 mL, 0.5 mL, 1.5 mL, 2.0 mL, 15 mL, 50 mL).
• Integrated safety architecture including overtemperature cutoff (triggered at 150 °C heating plate surface), PCB thermal protection, current-limiting circuitry, and visual red LED warning indicator during elevated-temperature operation.
• Chemically inert polypropylene housing with transparent polycarbonate lid—provides splash containment, visual sample monitoring, and resistance to common laboratory solvents and decontamination agents.
• Supplied with two standard heating blocks and a dedicated insulated module handler tool for safe insertion/removal at elevated temperatures—reducing operator exposure risk and preventing thermal shock to instrumentation.

Sample Compatibility & Compliance

The WB-350S accommodates a wide range of sample containers—including PCR strips, microcentrifuge tubes, reaction vials, and small-volume cuvettes—through customizable block configurations. Its design conforms to IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments. While not certified for use in classified hazardous locations, the unit meets CE marking requirements for electromagnetic compatibility (EMC Directive 2014/30/EU) and low-voltage safety (LVD Directive 2014/35/EU). For regulated environments, audit trails may be generated manually via timestamped log entries; optional external data loggers compliant with FDA 21 CFR Part 11 can be integrated for electronic record retention.

Software & Data Management

The WB-350S operates as a standalone instrument with no embedded software stack or network connectivity. All operational parameters—including temperature setpoint, timer mode, elapsed time, and current status—are managed locally via the VFD interface. No firmware updates or driver installations are required. For laboratories implementing digital SOPs, the device supports manual entry into LIMS or ELN systems using standardized metadata fields (e.g., instrument ID, operator ID, batch number, start/end timestamps, deviation notes). Its deterministic thermal response enables repeatable protocol execution without dependency on proprietary software ecosystems.

Applications

• Enzyme kinetics assays requiring precise thermal initiation (e.g., restriction digests, ligations, reverse transcription).
• Controlled thawing of cryopreserved cell suspensions or biologics to minimize thermal stress.
• Pre-heating of reagents prior to chromatographic injection or spectrophotometric analysis.
• Stabilization of temperature-sensitive standards during calibration workflows.
• Parallel processing in high-throughput screening where consistency across multiple wells is critical.
• Compliance-driven processes in ISO 13485-certified medical device manufacturing and USP compounding environments.

FAQ

What is the maximum recommended continuous operating temperature?
The WB-350S is rated for sustained operation up to 130 °C; prolonged exposure above this threshold may degrade thermal sensor longevity and compromise long-term accuracy.
Can the WB-350S be used with organic solvents?
The polypropylene housing and aluminum blocks resist common polar solvents (e.g., ethanol, isopropanol, aqueous buffers); however, direct contact with chlorinated or aromatic hydrocarbons (e.g., chloroform, toluene) is not advised due to potential polymer swelling.
Is calibration verification supported out-of-the-box?
Yes—the unit includes a built-in reference point check function accessible through service mode; users may validate performance using NIST-traceable PT100 probes per internal SOPs.
Does the WB-350S support external temperature probes?
No—temperature sensing is internal only, located within the aluminum block substrate; external probe inputs are not provided.
What power supply specifications must be observed?
The device requires a grounded 230 V AC, 50/60 Hz supply with minimum 2.8 A circuit capacity; operation on unstable or undersized circuits may trigger thermal cutoff events.