LAUDA PRO RP 2040 C Refrigerated/Heating Circulating Bath with External Loop Capability, −40 °C to 200 °C, ±0.01 °C Stability

Overview

The LAUDA PRO RP 2040 C is a high-precision, dual-mode refrigerated/heating circulating bath engineered for demanding laboratory and industrial applications requiring stable thermal control across an exceptionally wide operating range—from −40 °C to +200 °C. Built upon LAUDA’s decades of thermoregulation expertise, this unit employs a closed-loop liquid circulation system to maintain temperature uniformity within ±0.01 °C—critical for calibration procedures, material testing, reaction kinetics studies, and sensor validation. Its core architecture integrates a fully electronic PID controller with adaptive tuning algorithms, enabling both internal bath regulation and precise external temperature control of connected equipment (e.g., reactors, spectrometers, or analytical detectors). The system utilizes a natural hydrocarbon refrigerant (R-290), compliant with F-Gas Regulation (EU No. 517/2014) and offering negligible global warming potential (GWP = 3). Thermal management is further enhanced by SmartCool™ digital compressor modulation and a hybrid air/water-cooling system, allowing flexible installation in environments where water availability or ambient heat dissipation varies.

Key Features

• LAUDA Varioflex® circulation pump with eight adjustable flow stages (0–22 L/min), ensuring optimal heat transfer and homogeneity across diverse viscosities and external loop configurations
• 5.7-inch multi-touch color display with intuitive graphical interface; supports real-time trend visualization, setpoint ramping, and alarm history logging
• Detachable Command™ controller—rotatable 360° and mountable remotely—reduces effective equipment height by 280 mm, improving ergonomic access to the bath chamber
• Insulated stainless-steel bath tank (21.0 L capacity) with integrated drain valve, ergonomic handles, and heated lid edge to prevent condensation or frost formation at sub-zero temperatures
• Comprehensive safety architecture: adjustable low-temperature overheat protection, acoustic alarm, automatic system self-diagnosis, and redundant thermal cutouts per IEC 61010-1
• Dual communication infrastructure: standard USB 2.0 and Ethernet (TCP/IP) ports; optional expansion modules for RS-232/485, Profibus DP, EtherCAT, analog 0–10 V / 4–20 mA, or dry-contact I/O
• Programmable logic controller (PLC)-grade functionality: up to 100 user-defined programs, each supporting 50 segments with independent ramp rates, dwell times, and event-triggered outputs

Sample Compatibility & Compliance

The RP 2040 C accommodates a broad spectrum of heat-transfer media—including water, aqueous glycol mixtures, silicone oils, and ethanol—enabling safe operation from cryogenic to high-temperature regimes. Its sealed bath design and chemical-resistant stainless-steel construction meet requirements for GLP-compliant laboratories under ISO/IEC 17025. All firmware and data handling functions adhere to FDA 21 CFR Part 11 principles for electronic records and signatures when configured with audit-trail-enabled software. Temperature stability performance is verified per ASTM E1137/E1137M (Standard Specification for Industrial Platinum Resistance Thermometers) and traceable to national metrology institutes via optional factory calibration certificates (NIST-traceable Pt100 sensor). The unit complies with CE marking directives (EMC 2014/30/EU, LVD 2014/35/EU) and RoHS 2011/65/EU restrictions on hazardous substances.

Software & Data Management

LAUDA’s proprietary PTLab software (Windows-based, included) provides full remote supervision, including real-time parameter monitoring, automated data export (CSV, XLSX), and time-stamped event logging with user-level authentication (up to 20 configurable accounts). All temperature profiles, alarms, and system diagnostics are stored internally with non-volatile memory retention (>10 years). USB mass storage mode enables direct firmware updates and backup/restore of configuration files without network dependency. For integration into centralized lab information management systems (LIMS) or SCADA environments, the Ethernet interface supports Modbus TCP and OPC UA protocols. Audit trails record operator login/logout events, parameter modifications, and program execution—fully compliant with GMP Annex 11 and ALCOA+ data integrity principles.

Applications

• Calibration of thermocouples, RTDs, infrared sensors, and thermal imaging systems across extended temperature ranges
• Thermal cycling and aging tests for polymers, adhesives, and electronic components per IPC-9701 and MIL-STD-883
• Controlled-temperature reaction baths for synthetic chemistry, enzymatic assays, and polymerization kinetics
• Stabilization of optical benches, interferometers, and laser sources requiring sub-millikelvin thermal drift suppression
• External cooling/heating of HPLC columns, GC injectors, and rheometer measuring systems via integrated circulation ports (G3/8″ BSP)
• Material property characterization—including coefficient of thermal expansion (CTE), glass transition (T_g), and dynamic mechanical analysis (DMA) sample conditioning

FAQ

What is the minimum fill volume required for stable operation?
The bath maintains full thermal performance and safety interlocks at a minimum fill level of 12.5 L—ensuring reliable sensor immersion and pump priming even with partial loads.
Can the RP 2040 C operate continuously at 200 °C using silicone oil?
Yes, provided the selected heat-transfer fluid is rated for continuous service at ≥220 °C (e.g., Dow Corning® 200 Fluid, 50 cSt), and the bath lid remains installed to minimize oxidative degradation.
Is external circulation compatible with pressurized systems?
The unit supports external loops up to 3 bar static pressure; however, integration with pressurized reactors requires a pressure-relief bypass and isolation valve per EN 736-3.
How is temperature uniformity validated across the bath volume?
LAUDA performs volumetric mapping using nine calibrated Pt100 probes during factory acceptance testing (FAT), reporting spatial deviation ≤±0.02 °C at steady state per ISO 17025-accredited methodology.
Does the system support automated validation protocols for IQ/OQ/PQ documentation?
Yes—PTLab includes preconfigured templates aligned with ASTM E2573 and EU GMP Annex 15, generating PDF reports with embedded metadata, digital signatures, and version-controlled configuration snapshots.