Hanuo SC-15A Constant Temperature Water & Oil Bath Circulator

Overview

The Hanuo SC-15A Constant Temperature Water & Oil Bath Circulator is an engineered thermal platform designed for precision laboratory applications demanding stable, uniform, and reproducible temperature control across a broad operational range. Utilizing resistive heating elements coupled with a high-efficiency PID feedback loop, the SC-15A maintains thermal equilibrium in its 15-liter working chamber with minimal deviation—±0.2 °C over time—when operating at elevated temperatures up to 200 °C. Unlike basic water baths limited to aqueous media, this unit supports both water (ambient to 100 °C) and silicone or mineral oils (ambient to 200 °C), enabling compatibility with high-temperature reaction vessels, viscometry cells, calorimetric sample holders, and calibration standards. Its benchtop architecture minimizes spatial footprint while preserving mechanical rigidity and thermal isolation—critical for minimizing ambient drift during extended experiments. The system functions as a primary temperature reference source in metrology workflows, including thermometric sensor calibration against NIST-traceable standards and validation of secondary temperature measurement devices per ASTM E77 and ISO/IEC 17025 guidelines.

Key Features

• Benchtop design with compact dimensions (280 × 250 × 200 mm) optimized for space-constrained laboratories and fume hood integration.
• Dual-mode thermal medium compatibility: validated for water (up to 100 °C) and heat-transfer oils (up to 200 °C), with corrosion-resistant stainless steel bath chamber and sealed heating assembly.
• PID-based digital temperature controller delivering rapid thermal response and sustained stability—engineered to minimize overshoot and oscillation during setpoint transitions.
• Dual-line LED display showing real-time bath temperature (measured) and user-defined setpoint simultaneously; intuitive touch-key interface enables precise parameter entry without mechanical wear.
• Internal recirculation pump ensures homogeneous temperature distribution throughout the bath volume—eliminating vertical and lateral gradients critical for multi-vessel assays or immersion probe calibration.
• Thermal insulation layer and low-emissivity chamber surface reduce energy consumption and external heat dissipation, supporting continuous operation under ISO 14001-aligned lab sustainability protocols.

Sample Compatibility & Compliance

The SC-15A accommodates standard laboratory glassware—including 100–500 mL beakers, jacketed reactors, rotary evaporation condensers, and capillary viscometers—within its 235 × 160 mm open bath aperture. Its uniform thermal field meets requirements for USP environmental monitoring support equipment and ASTM D445 kinematic viscosity testing when paired with calibrated capillary tubes. The unit complies with IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments and incorporates over-temperature cut-off protection certified to EN 60519-2. While not inherently 21 CFR Part 11 compliant, audit trails for temperature logs can be generated externally via RS232/USB interface (optional) for GMP/GLP documentation frameworks.

Software & Data Management

The SC-15A operates autonomously without mandatory software dependency; however, optional PC connectivity enables remote setpoint adjustment, real-time temperature logging, and export of time-stamped CSV datasets. When integrated into validated systems, data acquisition software may enforce electronic signature controls, user access levels, and automated report generation aligned with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate). Firmware updates are performed offline via USB drive to preserve system integrity during regulated operations.

Applications

• Calibration of liquid-in-glass thermometers, RTDs, and thermocouples against reference standards.
• Temperature-controlled enzymatic assays and protein denaturation studies in biochemistry labs.
• Pre-conditioning of polymer melts prior to rheological characterization using rotational or capillary rheometers.
• Stabilization of optical components during spectroscopic alignment procedures sensitive to thermal lensing.
• Supporting exothermic reaction quenching when coupled with optional external chiller units (not included).
• Long-duration stability testing of pharmaceutical formulations per ICH Q1A(R2) guidelines.

FAQ

Is the SC-15A suitable for use with organic solvents?
No—the bath chamber is rated exclusively for water and non-flammable heat-transfer oils. Flammable solvents such as acetone, ethanol, or hexane must not be introduced due to fire hazard and material compatibility risks.
Does the unit include a built-in refrigeration system?
No—cooling functionality requires external connection to a recirculating chiller or tap-water cooling coil (accessory sold separately).
Can temperature data be exported for regulatory submissions?
Yes—via optional serial/USB interface and compatible third-party logging software that supports PDF/CSV export with metadata (timestamp, operator ID, instrument ID).
What maintenance is required to sustain ±0.2 °C stability?
Biannual verification using a NIST-traceable reference thermometer and periodic cleaning of the bath chamber and pump inlet screen to prevent particulate-induced flow restriction.
Is the SC-15A CE-marked?
Yes—certified to the EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU, with technical documentation available upon request.