BOXUN HH.S11-8 Single-Row 8-Position Electric Constant-Temperature Water Bath

Overview

The BOXUN HH.S11-8 is a precision-engineered single-row, 8-position electric constant-temperature water bath designed for stable thermal incubation, sample equilibration, enzymatic reactions, and auxiliary heating in regulated laboratory environments. Operating on the principle of convective heat transfer via thermostatically controlled water medium, it maintains uniform temperature distribution across all eight wells through optimized heater placement, insulated chamber walls, and passive water circulation. Its design prioritizes thermal stability, mechanical durability, and operational transparency—making it suitable for routine use in clinical pathology labs, pharmaceutical quality control units, academic research facilities, and industrial R&D settings where reproducible low-to-moderate temperature conditioning (RT + 5 °C to 100 °C) is required without forced convection or external recirculation.

Key Features

• Stainless steel (304 grade) inner tank ensures corrosion resistance, ease of cleaning, and long-term compatibility with aqueous reagents, buffers, and biological samples.
• High-strength cold-rolled steel outer casing with electrostatic epoxy powder coating provides mechanical robustness and resistance to abrasion and chemical splashes.
• Digital PID temperature controller integrated with platinum resistance thermometer (PT100-class) sensor delivers ±1 °C accuracy and minimizes overshoot during setpoint transitions.
• Intelligent self-diagnostic circuitry continuously monitors critical electronic components—including heating element continuity, sensor signal integrity, and power supply stability—and alerts users to anomalies via visual indicator.
• Over-temperature protection circuit automatically cuts power if internal temperature exceeds user-defined safety threshold, complying with IEC 61010-1 Class II safety requirements for laboratory equipment.
• Front-accessible water level window and drain valve facilitate rapid refilling, maintenance, and residue removal without disassembly.

Sample Compatibility & Compliance

The HH.S11-8 accommodates standard glassware including test tubes (up to Ø25 mm), centrifuge tubes, beakers, and small flasks across its eight parallel wells. Each well supports independent sample immersion without cross-contamination risk due to physical separation and shared thermal mass. The unit meets essential safety and electromagnetic compatibility standards applicable to general-purpose lab equipment under GB/T 14710 (Chinese national standard for environmental adaptability) and conforms to basic electrical safety benchmarks aligned with IEC 61010-1. While not certified for GMP or GLP audit trails out-of-the-box, its stable thermal performance and diagnostic logging capability support traceable operation when integrated into documented SOPs. It is routinely deployed in applications referenced in ASTM D1500 (petroleum product color measurement), ISO 8573-3 (compressed air contaminant testing requiring temperature stabilization), and USP environmental conditioning protocols.

Software & Data Management

This analog-digital hybrid water bath operates via front-panel push-button interface with LED display; no embedded software or data export functionality is included. Temperature setpoints, real-time bath temperature, and system status are displayed locally. For laboratories requiring electronic recordkeeping, optional third-party USB/RS232 data loggers (e.g., Omega OM-DAQPRO-5300 series) may be interfaced using standard 0–5 V analog output signals (available upon request with OEM modification). Audit-ready documentation—including calibration certificates, factory test reports, and material compliance declarations (RoHS, REACH)—is supplied with each unit to support internal QA review and regulatory readiness.

Applications

• Clinical diagnostics: Serum enzyme assay incubation (e.g., ALP, AST, ALT), blood bank sample warming prior to transfusion compatibility testing.
• Pharmaceutical QC: Dissolution media temperature conditioning per USP , stability study sample equilibration at specified storage conditions.
• Microbiology: Agar plate preparation, culture media melting and holding, bacterial growth phase synchronization.
• Materials science: Polymer solubilization, viscosity reference standard conditioning, adhesive curing pre-steps.
• Environmental testing: Extraction solution pre-warming for EPA Method 3510C (liquid-liquid extraction), sediment sample homogenization support.

FAQ

What is the maximum recommended operating time for continuous use?
The HH.S11-8 is rated for unattended 24/7 operation under ambient temperatures ≤30 °C and relative humidity ≤80% non-condensing, provided proper ventilation and water level maintenance are observed.
Can this unit be used with oil or other heat-transfer fluids?
No—this model is specifically engineered for water-based thermal media only. Substitution with oils, glycols, or solvents voids warranty and poses fire and material compatibility risks.
Is external temperature calibration supported?
Yes. A dedicated 2 mm diameter calibration port adjacent to the sensor well allows insertion of an NIST-traceable reference thermometer for field verification and adjustment per ISO/IEC 17025 procedures.
Does the unit include a timer function?
No. Timing must be managed externally using laboratory timers or LIMS-integrated scheduling tools.
What is the expected service life under routine maintenance?
With biannual descaling, annual heater inspection, and consistent use within rated specifications, typical service life exceeds 8 years based on field data from institutional users in China and Southeast Asia.