BOXUN HH.S21-6 Dual-Row 6-Well Precision Water Bath

Overview

The BOXUN HH.S21-6 Dual-Row 6-Well Precision Water Bath is a benchtop thermostatic immersion system engineered for stable, uniform temperature maintenance in routine laboratory workflows. Operating on resistive heating with forced convection via natural water circulation, it maintains thermal equilibrium across all six wells without mechanical agitation—ensuring minimal sample disturbance during incubation, enzyme assays, reagent equilibration, or cell culture preparation. Its design prioritizes operational reliability over extended duty cycles, with a maximum operating temperature of 100 °C and a minimum setpoint of ambient +5 °C—making it suitable for applications where precise low-to-moderate temperature control is required, but not for sterilization or boiling-point operation. The unit complies with fundamental electrical safety and environmental robustness standards applicable to Class I laboratory equipment in China (GB 4793.1) and conforms to climatic and mechanical endurance specifications outlined in GB/T 14710.

Key Features

• Stainless steel chamber (AISI 304) ensures corrosion resistance, ease of cleaning, and long-term dimensional stability under repeated thermal cycling.
• Dual-row, six-well configuration (3 wells per row) provides efficient spatial utilization while maintaining independent thermal coupling between adjacent wells—ideal for parallel sample processing with identical thermal conditions.
• PID-based digital temperature controller incorporates a high-stability NTC thermistor sensor with real-time feedback loop compensation, delivering ±1 °C accuracy across the full operating range (RT+5 °C to 100 °C).
• Self-diagnostic firmware continuously monitors critical electronic components—including heater relay status, sensor continuity, and power supply regulation—alerting users to potential fault conditions before operational failure.
• Robust cold-rolled steel housing with epoxy powder coating resists chipping, chemical splashes, and abrasion in shared lab environments.
• No external water circulation pump or refrigeration module—designed exclusively for static water bath applications requiring passive thermal homogeneity.

Sample Compatibility & Compliance

The HH.S21-6 accommodates standard laboratory glassware including test tubes (up to 25 mm diameter), centrifuge tubes, beakers (≤500 mL), and small flasks placed directly into the water-filled wells. It does not support sealed pressure vessels or vacuum-jacketed containers. While not certified to ISO/IEC 17025 or GLP-specific validation protocols out-of-the-box, its consistent thermal performance enables traceable calibration using NIST-traceable reference thermometers (e.g., Fluke 1523 or similar). Users performing regulated work may implement periodic verification per internal SOPs aligned with ASTM E2251 (Standard Practice for Calibration of Liquid-in-Glass Thermometers) and ISO 17034 (Reference material producers—General requirements). No CE, UKCA, or FDA 510(k) certification is held; installation requires adherence to local electrical codes (e.g., NEC Article 517 for clinical labs).

Software & Data Management

This model operates as a standalone analog-digital hybrid instrument with no embedded data logging, USB interface, or remote connectivity. Temperature setpoint and current chamber reading are displayed on a dual-digit LED screen. All parameter adjustments and diagnostic outputs occur locally via front-panel push-button controls. For laboratories requiring audit-ready records, integration with external data acquisition systems (e.g., LabVIEW, MATLAB, or third-party DAQ hardware) is feasible using optional analog voltage output modules (not included). No software license, cloud service, or firmware update capability is provided—consistent with its role as a purpose-built utility device rather than a digitally managed platform.

Applications

• Pre-warming reagents and media prior to enzymatic digestion or PCR setup in molecular biology labs.
• Maintaining serum, plasma, or tissue homogenates at physiological temperatures (37 °C) during short-term handling in clinical pathology units.
• Accelerating dissolution testing of pharmaceutical excipients under controlled thermal conditions (per USP <724> guidance).
• Supporting quality control procedures in food and beverage testing labs—for example, fat extraction preheating or microbial enrichment steps.
• Serving as an auxiliary heating station in materials science labs for polymer solubilization or solvent evaporation rate studies.

FAQ

Does the HH.S21-6 support programmable ramping or multi-step temperature profiles?
No. It features only single-setpoint digital temperature control with manual adjustment.
Can this unit be used for circulating water applications?
No. It lacks an integrated pump or inlet/outlet ports; water remains static within the chamber.
Is the stainless steel chamber electropolished or passivated?
The chamber uses standard mill-finish 304 stainless steel; electropolishing is not specified and is not required for general-purpose use.
What is the recommended maintenance interval for calibration verification?
We recommend quarterly verification using a calibrated reference thermometer, especially when used in QC-critical workflows.
Does BOXUN provide installation qualification (IQ) or operational qualification (OQ) documentation?
No. As a non-regulated utility device, formal qualification packages are not supplied; users must develop internal protocols if needed for GxP environments.