CZGY GY-30T-Q Transparent Full-Temperature Circulating Water Bath

Overview

The CZGY GY-30T-Q Transparent Full-Temperature Circulating Water Bath is an engineered thermal management system designed for precise temperature control in laboratory applications requiring stable, uniform thermal environments over extended durations. Based on a dual-mode (heating and refrigeration) thermoelectric and compressor-assisted cooling architecture, the unit maintains setpoint accuracy across its full operational range of 5 °C to 80 °C. Its defining feature is the transparent acrylic inner tank—constructed from high-clarity, chemically resistant organic polymer—enabling real-time, non-invasive visual monitoring of samples from three orthogonal viewing angles without lid removal or process interruption. This design supports experimental integrity during sensitive procedures such as solvent reflux, enzymatic reactions, controlled crystallization, and long-term stability testing where physical access must be minimized to avoid thermal perturbation or contamination risk.

Key Features

• Transparent acrylic bath chamber (480 × 520 × 300 mm internal dimensions) with 3-side optical access for unobstructed sample observation
• Dual-function temperature control system combining Peltier-based precision heating and compact hermetic refrigeration for seamless 5–80 °C operation
• High-stability PID algorithm with 0.1 °C digital resolution and ±0.05 °C temperature uniformity across the bath volume (74 L)
• Programmable timer with adjustable duration up to 9999 minutes (or hours), supporting unattended operation under GLP-compliant protocols
• Bi-directional circulation pump enabling both internal recirculation (for bath homogeneity) and external flow (for jacketed reactors, condensers, or auxiliary equipment)
• Robust stainless-steel outer housing with ergonomic front-panel LCD interface, sealed membrane keys, and overload/overtemperature safety cutoffs
• Standard 220 V / 50 Hz input compatibility; no external coolant or cryogen required

Sample Compatibility & Compliance

The GY-30T-Q accommodates standard laboratory glassware—including round-bottom flasks (up to 5 L), condenser assemblies, reaction vessels, and immersion probes—within its 300 × 300 × 300 mm open working area. The bath’s chemical resistance profile supports aqueous solutions, low-viscosity organic solvents (e.g., ethanol, acetone, ethyl acetate), and silicone oil media (when operated above 60 °C). It complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets CE marking requirements for electromagnetic compatibility (EMC Directive 2014/30/EU). While not certified for Class I Division 1 hazardous locations, it is suitable for general-purpose use in ISO 17025-accredited labs performing ASTM E2877 (standard practice for calibration of liquid-in-glass thermometers) or USP thermal validation protocols.

Software & Data Management

The unit operates via an embedded microcontroller with local LCD display and tactile interface—no proprietary software or PC dependency is required for basic operation. For integration into automated workflows, optional RS-485 Modbus RTU output (available upon request) enables bidirectional communication with SCADA systems, LIMS, or custom LabVIEW/HAL interfaces. All temperature setpoints, runtime logs, and alarm events are timestamped and stored in non-volatile memory for audit trail generation. When deployed in regulated environments (e.g., pharmaceutical QC labs), the device supports 21 CFR Part 11-compliant data integrity practices when paired with validated third-party data acquisition software that enforces electronic signatures, audit trails, and role-based access control.

Applications

• Controlled-temperature distillation and rotary evaporation support, especially where condenser jacket cooling or vapor-phase temperature monitoring is critical
• Long-duration stability studies per ICH Q1A(R2) guidelines, including accelerated degradation testing of APIs and formulations
• Enzyme kinetics assays requiring strict thermal consistency across multi-well plate formats or cuvette-based spectrophotometry
• Calibration of temperature-sensitive sensors (e.g., RTDs, thermistors) against NIST-traceable reference standards
• Thermal preconditioning of polymers, hydrogels, and colloidal dispersions prior to rheological or DSC characterization
• Support for environmental simulation chambers where auxiliary thermal load balancing is needed

FAQ

Does the GY-30T-Q support external temperature probe feedback for improved accuracy?
Yes—optional PT100 sensor input is available for external bath or sample-point referencing, enabling cascade control mode with enhanced spatial accuracy.
Can the unit maintain 5 °C ambient temperature in a 30 °C lab environment?
Yes—the integrated refrigeration system achieves and sustains 5 °C even at full load and elevated ambient conditions, verified per ISO 13370 Annex B thermal performance testing.
Is the transparent bath chamber resistant to prolonged exposure to chlorinated solvents?
No—acrylic exhibits limited resistance to chlorinated hydrocarbons (e.g., chloroform, methylene chloride); alternative stainless-steel or PTFE-lined bath inserts are recommended for such applications.
What maintenance intervals are specified for the circulation pump and refrigeration circuit?
Pump impeller inspection and seal lubrication are recommended every 12 months; refrigerant charge verification and condenser coil cleaning should occur biannually in continuous-use settings.
Is GLP-compliant calibration documentation provided with shipment?
A factory calibration certificate (traceable to national metrology institutes) is included; full IQ/OQ/PQ protocol templates and on-site validation support are available as optional services.