Zhongjiaojinyuan LX-2000 2000W Circulating Chiller

Overview

The Zhongjiaojinyuan LX-2000 2000W Circulating Chiller is an integrated, water-cooled thermal management system engineered for precise and stable temperature control in demanding laboratory and industrial applications. It operates on a vapor-compression refrigeration cycle, utilizing a high-efficiency scroll or rotary compressor (imported OEM grade) to transfer heat from the recirculated coolant fluid—typically deionized water or aqueous glycol mixtures—to ambient air via an optimized condenser and axial fan assembly. Heat exchange occurs within a stainless-steel evaporator coil immersed in the 14-liter reservoir, enabling rapid thermal equilibration and minimal overshoot. The unit delivers continuous cooling output of 2000 W at 20°C ambient, maintaining setpoint temperatures between 5°C and 35°C with a stability of ±0.1°C under steady-state load conditions. Its robust architecture supports uninterrupted operation over extended duty cycles, making it suitable for integration with analytical instruments requiring thermally stable operating environments.

Key Features

• Integrated human-machine interface with real-time digital display of temperature, circulation pressure, and reservoir liquid level—standard across all configurations.
• Dynamic PID-based temperature control algorithm with auto-tuning capability, minimizing thermal drift and ensuring reproducible setpoint accuracy.
• Critical refrigeration components—including compressor, condenser fan, and expansion valve—sourced from globally certified suppliers to ensure long-term reliability and low maintenance frequency.
• Adjustable circulation pump pressure (0–4.0 bar) with calibrated stainless-steel pressure gauge and flow regulation capability up to 28 L/min.
• Corrosion-resistant 304 stainless-steel fluid path, including inlet/outlet ports (30 mm diameter), quick-connect compatible fittings, and optional high-pressure or ultra-low-noise pump variants.
• Configurable auxiliary functions: power-loss recovery mode, flow-rate alarm output (dry contact), and RS-485 Modbus RTU interface for SCADA or LIMS integration.
• Energy-efficient design compliant with IEC 61000-3-2 harmonic emission standards; CE-marked per EN 61010-1 for laboratory electrical safety.

Sample Compatibility & Compliance

The LX-2000 is compatible with standard laboratory coolants including deionized water, 20–30% ethylene glycol/water mixtures, and other non-corrosive, low-viscosity heat-transfer fluids. It interfaces seamlessly with externally mounted equipment via closed-loop circulation using industry-standard 1/2″–3/4″ NPT or BSPP threaded connections. The unit conforms to ISO/IEC 17025 requirements for supporting equipment used in accredited testing laboratories. Its temperature stability (±0.1°C) meets ASTM E29–23 criteria for precision thermal control in calibration and material testing environments. Optional RS-485 communication enables audit-trail-capable data logging aligned with FDA 21 CFR Part 11 and GLP/GMP documentation workflows when paired with validated software platforms.

Software & Data Management

While the LX-2000 operates autonomously via its embedded microcontroller, the optional RS-485 interface allows bidirectional communication with host systems running LabVIEW, MATLAB, or custom SCADA applications. Supported Modbus RTU registers include real-time temperature reading, setpoint value, pump status, pressure reading, and alarm flags. All parameter settings—including temperature setpoint, pump pressure limit, and hysteresis band—are retained in non-volatile memory after power interruption. Firmware updates are performed via serial terminal utility; no proprietary software installation is required. For regulated environments, third-party validation packages (IQ/OQ protocols) are available upon request to support instrument qualification per GAMP 5 guidelines.

Applications

• Analytical Instrument Cooling: Sustained thermal stabilization for ICP-OES, HPLC detectors, FTIR spectrometers, mass spectrometer ion sources, rotational rheometers, viscometers, polarimeters, and rotary evaporators.
• Vacuum & Medical Systems: Thermal management of diffusion pumps, turbomolecular pumps, MRI cryo-coolers, X-ray tube housings, radiotherapy accelerators, and patient temperature regulation blankets.
• Industrial Process Support: Laser diode and CO₂ laser head cooling, vacuum thin-film deposition chambers, bioreactor jacket temperature control, CNC machine tool spindle cooling, resistance welding electrodes, and jacketed chemical reactors.

FAQ

What is the maximum allowable coolant viscosity for optimal pump performance?
The circulation pump is rated for fluids with kinematic viscosity ≤ 5 cSt at operating temperature; glycol concentrations exceeding 35% by volume are not recommended without prior flow verification.
Can the LX-2000 operate unattended for 72+ hours?
Yes—designed for continuous duty with thermal overload protection, compressor delay timers, and automatic restart after brief power interruptions (with optional power recovery module enabled).
Is remote monitoring possible without RS-485?
No native Ethernet or Wi-Fi interface is included; however, analog 0–10 V or 4–20 mA output modules for temperature and pressure signals can be factory-installed as an alternative for PLC-based monitoring.
Does the unit require annual refrigerant servicing?
No—hermetically sealed refrigeration circuit with zero-maintenance design; refrigerant charge integrity is verified during factory leak testing per ISO 5149 and requires no scheduled replenishment under normal operating conditions.
What safety certifications does the LX-2000 hold?
CE marking per EN 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and RoHS 2011/65/EU compliance documentation are provided with each shipment.