Scientz DC-1015 Low-Temperature Constant Temperature Bath (Heating & Cooling)
| Brand | Scientz |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | DC-1015 |
| Instrument Type | Circulating Constant-Temperature Bath |
| Circulation Mode | Internal & External |
| Temperature Control | Dual-mode (Heating & Refrigeration) |
| Tank Dimensions | 300 × 250 × 200 mm (L×W×H) |
| Temperature Range | −10 °C to +100 °C |
| Temperature Stability | ±0.05 °C |
| Display | 7-inch TFT Touchscreen |
| Pump Flow Rate | 0–20 L/min (DC Speed-Controlled, Max Head: 5 m) |
| Refrigeration System | Eco-friendly Non-CFC Compressor-Based |
| Safety Features | Overheat/Overload Protection, Power-Fail Delay Restart (3 min), Adjustable Upper/Lower Temperature Alarms, Self-Tuning PID Control, Fuzzy Logic Thermal Load Recognition |
Overview
The Scientz DC-1015 Low-Temperature Constant Temperature Bath is an engineered thermal management system designed for precision temperature control in laboratory and industrial R&D environments. It operates on a closed-loop, compressor-based refrigeration principle combined with resistive heating, enabling stable bidirectional thermal regulation across a wide operational range of −10 °C to +100 °C. Unlike passive water baths or basic immersion heaters, the DC-1015 actively circulates temperature-controlled fluid—either water or low-viscosity silicone oil—via a brushless DC pump, delivering uniform thermal distribution both within its internal chamber and through external circuits. Its core function is to serve as a calibrated, reproducible thermal sink or source for applications requiring strict thermal boundary conditions: calorimetric calibration, viscometer jacketing, spectrophotometer cell temperature stabilization, reaction kinetics studies, and material property testing under controlled thermal stress.
Key Features
- Non-CFC refrigeration system compliant with international environmental directives (e.g., Montreal Protocol Annexes), utilizing high-efficiency compressors and optimized heat exchangers for low GWP operation.
- 7-inch capacitive TFT touchscreen interface with intuitive soft-key navigation, supporting multi-point temperature setpoint programming, real-time curve logging, and user-defined alarm thresholds.
- Intelligent dual-mode thermal management: fuzzy logic algorithms dynamically assess ambient load and target deviation to determine optimal activation of heating elements, refrigeration cycle, or simultaneous operation—minimizing energy consumption without compromising stability.
- Self-tuning PID controller with auto-identification of system thermal inertia; eliminates manual tuning while maintaining ±0.05 °C temperature stability over extended periods (≥8 h) at any setpoint within the operating range.
- Robust safety architecture including hardware-level overtemperature cutoff, compressor overload protection, automatic 3-minute restart delay after power interruption, and configurable upper/lower limit alarms with relay output for integration into facility monitoring systems.
- Externally controllable circulation pump (0–20 L/min, max head 5 m) with flow rate modulation via touchscreen or analog signal input, enabling precise coupling to external jackets, reactors, or analytical instrumentation.
Sample Compatibility & Compliance
The DC-1015 accommodates aqueous solutions, ethylene glycol/water mixtures, and low-volatility silicone oils (up to 100 cSt viscosity) within its 15-liter working volume (300 × 250 × 200 mm internal dimensions). Its stainless-steel tank and chemically resistant seals ensure compatibility with common laboratory solvents and buffer systems. The unit meets IEC 61010-1:2010 safety requirements for electrical equipment used in laboratory settings and complies with EMC directive 2014/30/EU. While not certified for Class I Div 1 hazardous locations, it is routinely deployed in ISO/IEC 17025-accredited testing laboratories where documented thermal traceability and instrument qualification (IQ/OQ/PQ) are required. Its temperature stability and repeatability support adherence to ASTM E1137/E1137M (Standard Specification for Temperature-Indicating Devices) and ISO 17025 clause 6.4.6 (Equipment Verification).
Software & Data Management
The DC-1015 supports RS485 Modbus RTU communication protocol for integration into centralized lab automation platforms (e.g., LabVantage, Thermo Fisher SampleManager). Optional Scientz PC software enables remote parameter configuration, continuous temperature trend recording (with timestamped CSV export), and audit-trail generation—including operator ID, setpoint changes, alarm events, and system status logs. All data entries are time-stamped and immutable, satisfying basic requirements for GLP-compliant environments. While not FDA 21 CFR Part 11 validated out-of-the-box, the firmware architecture allows for third-party validation packages to be implemented during site-specific qualification.
Applications
- Thermal conditioning of viscometers, densitometers, and refractometers requiring stable bath-jacket temperatures.
- Controlled-rate cooling/heating for polymer crystallization studies and phase transition analysis (DSC sample prep).
- Calibration of thermistors, RTDs, and infrared thermometers against NIST-traceable references.
- Temperature-dependent kinetic assays in enzymology and microbiology (e.g., Arrhenius plot derivation).
- Stabilization of optical components (e.g., laser diodes, interferometer stages) sensitive to thermal drift.
- Supporting ASTM D97 (pour point), D2500 (cloud point), and ISO 3104 (kinematic viscosity) test methods via external circulation to sample cells.
FAQ
What fluids are compatible with the DC-1015 bath?
Deionized water, 30–50% ethylene glycol/water mixtures, and methyl silicone oils (e.g., Dow Corning 200 Fluid, viscosity ≤100 cSt) are recommended. Avoid halogenated solvents, strong acids/bases, or fluids with flash points below 60 °C.
Can the DC-1015 maintain temperature stability during external circulation?
Yes—when connected to external loads up to 5 m head and ≤20 L/min flow, the unit maintains ±0.1 °C stability at the outlet port under steady-state conditions, verified per ASTM E1137 Annex A2.
Is the temperature sensor calibrated and traceable?
The integrated Pt100 sensor is factory-calibrated against a Fluke 724 temperature calibrator (NIST-traceable); calibration certificate is available upon request with optional IQ/OQ documentation.
Does the unit support programmable ramp-soak profiles?
No—the DC-1015 is a single-setpoint stability platform. For multi-step thermal profiling, integration with external programmable controllers via Modbus is required.
What maintenance intervals are recommended?
Compressor oil and refrigerant levels require verification every 24 months; pump impeller and seal inspection is advised annually. Full preventive maintenance kits and service bulletins are available directly from Scientz Technical Support.
