Polystat 13042-03 Recirculating Chiller/Heater

Overview

The Polystat 13042-03 is a compact, high-performance recirculating chiller/heater engineered for precise thermal control of external laboratory equipment. Utilizing a dual-mode refrigeration and resistive heating system with an integrated vapor-compression cycle and PID-controlled solid-state power regulation, it maintains stable setpoint temperatures across its full operational range of −10 to 80 °C. Designed for integration with jacketed reactors, rotary evaporators, spectrophotometer cells, calorimeters, and other heat-exchange-dependent instrumentation, the unit delivers rapid thermal response—achieving both heating and cooling transitions in under 15 minutes for typical 2–5 L external loops. Its internal bath reservoir (21 L capacity) features low-evaporation geometry and a sealed circulation path, minimizing fluid loss during extended operation. The system operates with a temperature stability of ±0.1 °C under steady-state conditions, verified per ASTM E2209-21 calibration protocols for laboratory thermal control devices.

Key Features

• Compact footprint (W × D × H ≈ 35 × 40 × 50 cm) optimized for benchtop deployment without compromising thermal output or flow performance
• Dual-mode temperature control: simultaneous refrigeration (R134a-based compressor) and electric heating (solid-state SCR-regulated)
• Pressure/suction dual-mode pump capable of delivering up to 21 L/min at 11.7 psi (805 mbar) maximum head pressure
• Integrated bath level sensor and low-flow alarm with automatic shutdown to prevent dry-run damage
• Front-panel digital interface with real-time display of setpoint, actual bath temperature, flow rate, and system status codes
• Standard fittings include funnel fill port and barbed connectors for 8 mm and 12 mm I.D. tubing (compatible with silicone, Viton®, and PTFE-lined hoses)
• UL-listed electrical safety compliance; CE-marked for EMC and low-voltage directive conformity

Sample Compatibility & Compliance

The Polystat 13042-03 supports a broad range of heat-transfer fluids—including water, 30% ethylene glycol/water mixtures, and silicone oils—enabling safe operation across its full −10 to 80 °C range. It is compatible with standard laboratory circulation interfaces (e.g., Swagelok® 1/4″ NPT, Camlock C-type, and Quick-Connect fittings). The unit meets ISO/IEC 17025 requirements for ancillary thermal control systems used in accredited testing laboratories. Its temperature stability and repeatability are validated per USP “Thermal Analysis” guidelines for equipment supporting dissolution, stability, and reaction calorimetry studies. No modifications are required for GLP or GMP environments; audit trails for temperature logs may be exported via optional RS-232 or USB data interface (firmware v3.2+).

Software & Data Management

While the 13042-03 operates as a standalone instrument with intuitive front-panel controls, optional PC connectivity enables remote monitoring and parameter logging. Using the Polystat ControlSuite™ (v2.4, Windows-compatible), users can configure ramp/soak profiles, record time-stamped temperature and flow data at 1-second intervals, and export CSV-formatted datasets compliant with FDA 21 CFR Part 11 requirements when paired with user-authenticated login and electronic signature modules. All firmware updates are delivered via signed .bin files with SHA-256 checksum verification to ensure integrity and traceability.

Applications

• Temperature stabilization of jacketed glass reactors during exothermic/endothermic synthesis
• Cooling condenser jackets on rotary evaporators to maximize solvent recovery efficiency
• Thermal conditioning of UV-Vis cuvette holders and FTIR sample compartments
• Controlled-rate heating/cooling for polymer crystallization studies and DSC reference calibration
• Supporting accelerated stability testing per ICH Q1A(R3) guidelines using programmable thermal profiles
• Maintaining constant bath temperature for viscosity measurements in rotational rheometers requiring thermal coupling

FAQ

What is the recommended heat-transfer fluid for operation below 0 °C?
For sub-zero operation, a mixture of 30% ethylene glycol and deionized water is recommended to prevent freezing while maintaining optimal thermal conductivity and pump compatibility.
Can the unit operate continuously at 80 °C with external load?
Yes—the system is rated for continuous operation at 80 °C ambient with full external circulation, provided ambient room temperature remains ≤25 °C and ventilation clearances (≥10 cm rear/side) are maintained.
Is the pump self-priming for suction-mode operation?
The pressure/suction pump is designed for initial priming via manual fill; once fluid is present in the internal reservoir, it maintains prime under normal operating conditions, including lift heights up to 1.2 m.
Does the 13042-03 support external temperature feedback control?
No—the unit regulates based on internal bath sensor only; for process-critical applications requiring probe-in-sample control, Polystat recommends pairing with an external PID controller via analog 0–10 V output (available as optional accessory module).
What maintenance intervals are specified for the refrigeration system?
Compressor oil and refrigerant charge require no scheduled servicing under normal use; annual inspection of condenser coil cleanliness and pump seal integrity is advised per manufacturer’s preventive maintenance checklist (Doc. POLY-PM-13042 Rev. F).