BOXUN HH.S11-2 Precision Water Bath
| Brand | BOXUN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | HH.S11-2 |
| Price Range | USD 14–140 |
| Capacity | Single-Row, Dual-Wells |
| External Dimensions (mm) | 345 × 200 × 210 |
| Chamber Dimensions (mm) | 305 × 160 × 130 |
| Power Rating | 0.5 kW |
| Temperature Range | RT + 5 °C to 100 °C |
| Temperature Accuracy | ±1 °C |
| Construction | Cold-Rolled Steel Housing with Epoxy Powder Coating |
Overview
The BOXUN HH.S11-2 Precision Water Bath is a compact, single-row dual-well laboratory water bath engineered for stable thermal conditioning of samples in clinical, academic, and industrial laboratory environments. It operates on the principle of convective heat transfer via immersion in a temperature-controlled water medium—providing uniform thermal distribution across sample containers without direct contact with heating elements. Designed for applications requiring consistent, non-aggressive heating between ambient +5 °C and 100 °C, the unit delivers high thermal stability (±1 °C) under steady-state conditions, making it suitable for enzyme incubation, serological assays, reagent warming, sample thawing, and auxiliary heating in histology and microbiology workflows.
Key Features
- Stainless steel (304 grade) inner chamber ensures corrosion resistance, ease of cleaning, and long-term compatibility with aqueous and mild chemical solutions.
- Epoxy-coated cold-rolled steel outer housing provides mechanical durability and protection against incidental abrasion and environmental moisture.
- Microprocessor-based temperature controller with high-precision NTC thermistor sensor enables real-time feedback and digital setpoint adjustment in 0.1 °C increments.
- Integrated electronic self-diagnostic system continuously monitors critical circuit components—including heating element continuity, sensor integrity, and power regulation status—alerting users to potential faults before operational failure.
- Over-temperature safety cutoff prevents uncontrolled thermal excursions, complying with IEC 61010-1 requirements for laboratory electrical equipment safety.
- Low thermal inertia design minimizes overshoot during ramp-up and supports rapid stabilization (<15 min to reach 37 °C from ambient).
Sample Compatibility & Compliance
The HH.S11-2 accommodates standard laboratory glassware including test tubes (up to Ø25 mm), centrifuge tubes, and small beakers within its dual-well configuration (305 × 160 × 130 mm chamber). Its open-bath architecture allows unrestricted access for pipetting, stirring, or manual sample handling. The unit meets general-purpose laboratory safety standards per IEC 61010-1:2010 and conforms to electromagnetic compatibility (EMC) requirements outlined in IEC 61326-1. While not certified for GLP/GMP-regulated production environments, it supports documentation-ready operation when used with external loggers for temperature validation (e.g., ASTM E2879-22 for thermal mapping of liquid baths). No hazardous substances are employed in construction per RoHS Directive 2011/65/EU.
Software & Data Management
The HH.S11-2 operates as a standalone analog-digital hybrid instrument with no embedded firmware update capability or USB/Ethernet connectivity. Temperature setpoints and current readings are displayed on a 3-digit LED screen; all operational data remain local and non-exportable. For audit-trail compliance in regulated settings, integration with external calibrated data loggers (e.g., Omega OM-DAQPRO-5300 series) is recommended. Users performing routine calibration verification may reference ISO/IEC 17025:2017 clause 6.4.10 (monitoring of environmental conditions) and USP “Temperature Measurement” for traceable probe placement and interval protocols.
Applications
- Clinical pathology labs: Warming serum specimens prior to immunoassay analysis (e.g., ELISA, CLIA).
- Pharmaceutical R&D: Hydration of hydrogels, dissolution media pre-conditioning, and stability testing support at controlled sub-boiling temperatures.
- Academic teaching labs: Demonstrating Arrhenius kinetics, enzyme activity profiling, and phase transition behavior in undergraduate biochemistry curricula.
- Food & beverage QA: Holding standardized dilution blanks or buffer solutions at defined temperatures prior to spectrophotometric analysis (AOAC 973.42).
- Materials science prep: Pre-heating polymer precursors or solvent mixtures prior to casting or rheological characterization.
FAQ
Is the HH.S11-2 suitable for use with organic solvents?
No. This unit is designed exclusively for aqueous-based applications. Immersion of flammable or volatile organic liquids poses fire and vapor inhalation hazards and voids safety certification.
Can the temperature accuracy be independently verified?
Yes. Users may perform periodic verification using a NIST-traceable Class A thermometer (e.g., ASTM E77-compliant) inserted at the geometric center of the water volume, following ISO 17025-aligned procedures.
Does the unit include a drain valve?
No. Drainage requires manual tilting or siphoning. Optional aftermarket drain kits compatible with 304 SS chambers may be installed by qualified technicians.
What maintenance is required for long-term reliability?
Monthly descaling with 5% acetic acid solution is recommended for hard-water regions; annual inspection of heater terminals and sensor wiring integrity is advised per manufacturer service guidelines.
Is remote monitoring supported?
Not natively. Integration with third-party SCADA or LabVantage systems requires external analog signal conversion (e.g., 4–20 mA output module) and custom configuration by facility engineering staff.
