Ningbo Scientz CK-4010GD Intelligent Programmable Refrigerated/Heating Circulating Bath

Overview

The Ningbo Scientz CK-4010GD is an intelligent, microprocessor-controlled refrigerated/heating circulating bath engineered for high-precision thermal management in demanding laboratory and industrial R&D environments. Utilizing a dual-mode thermodynamic architecture—combining a hermetically sealed, imported Tecumseh/Taikang scroll compressor with a high-efficiency resistive heating system—the CK-4010GD delivers stable, programmable temperature control across an exceptionally wide operational range of −40 °C to +200 °C. Its circulation system supports both internal bath homogenization and external load regulation via a calibrated, corrosion-resistant stainless-steel pump (flow rate: up to 18 L/min at low backpressure), enabling integration with calorimeters, viscometers, spectrophotometer jackets, and other externally cooled/heated instrumentation. The unit employs an environmentally compliant refrigerant formulation (R-404A or R-507 equivalent), meeting current EU F-Gas Regulation (EU No. 517/2014) and EPA SNAP program requirements for ozone depletion potential (ODP = 0) and global warming potential (GWP) reduction.

Key Features

• 32-segment programmable temperature/time profile capability, supporting complex ramp-hold-cool sequences for kinetic studies, polymer curing validation, or accelerated stability testing.
• PID-based digital temperature control with adaptive tuning, achieving ±0.1 °C temperature stability over the full range and ≤0.05 °C short-term fluctuation (measured per ASTM E2251-22 Annex A1).
• Full-system safety architecture: compressor thermal overload cutoff, high/low temperature alarms, dry-run protection, and non-volatile memory retention for all user parameters—including auto-restart configuration after power interruption.
• Low-noise operation (<58 dB(A) at 1 m) enabled by vibration-damped mounting and a fully enclosed Taikang rotary compressor.
• Intuitive 4.3-inch TFT LCD interface with multi-language support (English, German, French, Chinese), real-time graphing of setpoint vs. actual temperature, and USB port for firmware updates.
• Stainless-steel 304 bath chamber (10 L usable volume) with integrated drain valve, reinforced insulation, and PTFE-coated circulation fittings to ensure chemical compatibility with organic solvents, glycols, and silicone oils.

Sample Compatibility & Compliance

The CK-4010GD accommodates a broad spectrum of heat-transfer media—including deionized water, 50% ethylene glycol/water mixtures, mineral oil (up to 200 °C), and silicone oil—without degradation of seal integrity or thermal performance. Its external circulation port (G1/4″ BSP female) supports standard laboratory tubing (ID 6–10 mm) and integrates seamlessly with OEM equipment requiring auxiliary temperature control. From a regulatory standpoint, the instrument is designed to support laboratories operating under ISO/IEC 17025:2017 (General requirements for the competence of testing and calibration laboratories), FDA 21 CFR Part 11 (for electronic records when paired with Scientz’s optional LabLink Pro software), and GLP (Good Laboratory Practice) audit frameworks. All temperature sensors are calibrated against NIST-traceable references, and certificate-of-calibration documentation is available upon request.

Software & Data Management

While standalone operation requires no PC, the CK-4010GD is compatible with Scientz LabLink Pro v3.2—a Windows-based data acquisition and remote control platform. LabLink Pro enables real-time monitoring of bath temperature, compressor status, and pump flow; automated logging at user-defined intervals (1 s to 60 min); export to CSV or Excel; and generation of IQ/OQ documentation templates aligned with pharmaceutical validation protocols (e.g., USP <1058> Analytical Instrument Qualification). Audit trail functionality—including operator ID, timestamped parameter changes, and event logs—is configurable to meet ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) data integrity principles.

Applications

• Chemical synthesis: Precise exotherm control during Grignard, lithiation, or nitration reactions; cryogenic trapping of reactive intermediates.
• Materials science: DSC sample cell conditioning, rheometer temperature staging, and thermal expansion coefficient measurement setups.
• Pharmaceutical QA/QC: Dissolution apparatus temperature verification (USP <711>), stability chamber challenge testing, and reference standard equilibration.
• Biotechnology: Enzyme activity assays requiring strict thermal profiling, PCR instrument calibration, and cold-chain validation studies.
• Electronics testing: Thermal cycling of PCB assemblies, semiconductor junction characterization, and thermal interface material (TIM) conductivity evaluation.

FAQ

What is the maximum external load capacity supported by the CK-4010GD’s circulation system?
The unit maintains ±0.1 °C stability with external heat exchangers up to 5 kW thermal load (at ΔT = 20 °C), provided system backpressure remains below 1.2 bar and fluid viscosity stays within 500 cP.
Can the CK-4010GD operate continuously at −40 °C using water as the bath medium?
No—water freezes at 0 °C. For sub-zero operation, users must employ a suitable antifreeze mixture (e.g., 30% propylene glycol/water) or silicone oil; the instrument includes freeze-protection logic that inhibits startup if fluid conductivity indicates ice formation.
Is third-party calibration certification included with purchase?
A factory calibration report (covering 5-point verification across −40 °C, 0 °C, 25 °C, 100 °C, and 200 °C) is supplied standard; NIST-traceable certification with uncertainty budget is available as an optional add-on.
Does the device support RS-485 or Ethernet communication for lab network integration?
RS-485 Modbus RTU interface is built-in; Ethernet (TCP/IP) and analog 4–20 mA output modules are available as field-installable options under Scientz’s OEM Interface Kit (Part No. CIK-ETH-01).