Ningbo Scientz SC-15 Digital Programmable Constant-Temperature Water Bath Circulator

Overview

The Ningbo Scientz SC-15 Digital Programmable Constant-Temperature Water Bath Circulator is an engineered thermal management system designed for precision temperature control in laboratory and industrial R&D environments. Utilizing a PID-controlled heating circuit with high-stability platinum resistance temperature sensors (PT100), the SC-15 maintains a thermally homogeneous liquid medium across its 14.4 L working volume (300 × 240 × 200 mm). Its core function is to deliver a stable, uniform, and programmable thermal environment—either as a standalone immersion bath or as a remote temperature source via external circulation. The unit employs environmentally compliant refrigerants in its optional cooling configurations (note: SC-15 is heating-only; cooling-capable variants exist under separate model designations) and integrates robust thermal insulation, corrosion-resistant stainless-steel tank construction, and low-noise centrifugal circulation pumps. This architecture ensures long-term repeatability and minimal thermal drift—critical for applications requiring traceable, GLP-aligned temperature conditioning.

Key Features

• 7-inch high-resolution tilted touchscreen interface with intuitive icon-based navigation, enabling real-time monitoring of setpoint, actual temperature, elapsed time, and pump status—even from benchtop distance
• PID auto-tuning algorithm optimized for rapid thermal equilibration and minimal overshoot across the full operating range (ambient +5 °C to 100 °C)
• Dual-mode circulation: internal recirculation for bath homogeneity; external loop mode with adjustable flow rate (0–20 L/min typical range) for jacketed reactors, viscometers, or calorimeters
• Programmable timer with auto-shutdown functionality—prevents unattended operation beyond defined experimental duration
• Configurable power recovery logic: retains all user-defined parameters after mains interruption and supports selectable auto-restart or standby-on-resume behavior
• Temperature stability of ±0.05 °C (at 37 °C, static load) to ±0.2 °C (across full range, dynamic load), verified per ISO/IEC 17025-compliant calibration protocols

Sample Compatibility & Compliance

The SC-15 accommodates standard laboratory glassware (e.g., Ubbelohde viscometers, reaction flasks, cuvettes) and is compatible with aqueous, ethylene glycol–water mixtures, and silicone oil media (viscosity ≤ 500 cSt). Its stainless-steel bath chamber and sealed pump housing meet IP54 ingress protection standards. While not certified to UL/CSA for hazardous locations, the unit complies with IEC 61010-1:2010 for electrical safety in laboratory equipment. It supports audit-ready documentation workflows when integrated into GxP-regulated labs—temperature logs (via optional RS485/Modbus output) can be archived with electronic signatures and time-stamped metadata in alignment with FDA 21 CFR Part 11 requirements.

Software & Data Management

The SC-15 operates autonomously via embedded firmware without PC dependency. For advanced integration, optional communication modules enable Modbus RTU over RS485, allowing bidirectional parameter control and real-time data streaming to LIMS or SCADA platforms. Temperature profiles, alarm events, and pump runtime are stored in non-volatile memory (retention >10 years) and exportable as CSV files via USB port. All logged data includes ISO 8601 timestamps, sensor ID, and operator-assigned batch identifiers—facilitating traceability in ISO 17025-accredited testing laboratories.

Applications

• Viscosity measurement: Providing ASTM D445/D446-compliant thermal conditioning for capillary and rotational viscometers
• Biological sample incubation: Maintaining consistent thermal environments for enzyme kinetics, cell viability assays, and protein denaturation studies
• Chemical synthesis: Enabling precise temperature ramping and hold steps in exothermic/endothermic reactions
• Calibration support: Serving as a stable reference bath for thermometer, thermocouple, and RTD verification per ISO/IEC 17025 Clause 6.5
• Cosmetic product stability testing: Supporting ICH Q1A(R2)-aligned accelerated aging protocols at controlled temperatures
• Medical device validation: Delivering repeatable thermal loads during performance qualification of diagnostic reagents and assay kits

FAQ

Is the SC-15 capable of refrigeration?
No—the SC-15 is a heating-only circulator. Cooling functionality requires the SC-15R (refrigerated) variant or external chiller integration.
What is the maximum external loop pressure rating?
The integrated pump delivers up to 0.3 MPa (3 bar) static pressure at zero flow; continuous operation at ≥0.2 MPa requires external pressure regulation.
Can the SC-15 be used with silicone oil?
Yes—provided viscosity remains ≤500 cSt and operating temperature does not exceed the oil’s flash point; bath cleaning frequency must increase proportionally.
Does it support NIST-traceable calibration?
The unit accepts third-party PT100 probe calibration; factory calibration certificates include uncertainty budgets referenced to NIST-traceable standards.
How is temperature uniformity validated across the bath volume?
Per internal QA protocol, uniformity is verified at nine spatial points (center + eight corners) using calibrated reference thermometers per ASTM E1137/E1142 guidelines.