Labotery SY-20 Precision Water Bath

Overview

The Labotery SY-20 Precision Water Bath is a benchtop constant-temperature immersion system engineered for reproducible thermal control in life science and quality control laboratories. It operates on the principle of convective heat transfer via water as a uniform thermal medium, ensuring stable and homogeneous temperature distribution across the entire bath chamber. Unlike dry-block heaters or oil baths, water baths provide superior thermal inertia and minimal spatial gradients—critical for applications requiring long-duration incubation, enzyme kinetics assays, sample thawing, or pre-warming reagents prior to analytical procedures. The SY-20 is calibrated and validated for continuous operation within a working range of ambient +5 °C to 100 °C, making it suitable for both low-temperature physiological simulations and high-temperature sterilization support protocols.

Key Features

• Stainless steel tank and lid construction ensures corrosion resistance, ease of cleaning, and compliance with laboratory hygiene standards.
• Microprocessor-based PID temperature controller delivers real-time feedback regulation, minimizing overshoot and stabilizing setpoints within ±0.1 °C accuracy.
• Dual digital LED display simultaneously shows setpoint and actual bath temperature, enabling immediate verification during method execution.
• Programmable timer (1–9999 minutes) supports unattended operation and prevents thermal overexposure of sensitive biological samples.
• High-efficiency 800 W heating element enables rapid recovery after sample loading while maintaining thermal stability under load.
• Temperature uniformity of ±0.5 °C across the full 30 L chamber volume (500 × 300 × 200 mm) satisfies ASTM E145 and ISO 17025 criteria for thermal validation of incubation systems.

Sample Compatibility & Compliance

The SY-20 accommodates standard laboratory vessels including test tubes (up to 25 mm diameter), centrifuge tubes, flasks, and multi-well plates—provided they are immersed below the waterline and do not exceed bath depth. Its open-bath design allows direct access for pipetting, sampling, or agitation without compromising thermal integrity. The unit is designed for use in environments governed by Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP) frameworks. While not intrinsically FDA 21 CFR Part 11 compliant, its digital logging interface (via optional RS232/USB output) supports integration into validated data acquisition systems that meet electronic record requirements. All materials contacting water conform to USP Class VI biocompatibility standards.

Software & Data Management

The SY-20 operates as a standalone instrument with embedded firmware; no proprietary software is required for basic functionality. For laboratories requiring traceable temperature records, an optional serial communication module enables connection to third-party data loggers or LIMS platforms. When integrated, the device transmits timestamped temperature readings at user-defined intervals (e.g., every 30 seconds), supporting retrospective analysis and deviation investigation. Audit trails generated through external systems comply with ISO/IEC 17025 clause 7.7 (result reporting) and EU Annex 11 (computerized system validation) when configured with appropriate access controls and electronic signature capability.

Applications

• Bacterial and fungal culture incubation at defined physiological temperatures (e.g., 37 °C for mammalian cell work or 25–30 °C for environmental isolates).
• Enzyme activity assays requiring precise thermal equilibration before kinetic measurement.
• DNA hybridization and PCR pre-incubation steps where buffer pre-warming improves assay consistency.
• Viscosity standardization of liquid pharmaceutical formulations prior to rheological testing.
• Calibration of thermocouples and RTDs using NIST-traceable reference standards in water-based media.
• Accelerated stability studies in food safety labs (e.g., AOAC 977.27 thermal challenge protocols).

FAQ

What is the maximum recommended water fill level for optimal thermal performance?
The bath should be filled to at least 20 mm below the top edge of the tank (approximately 180 mm depth) to ensure full immersion of standard vessels and prevent dry-heating of the element.
Can the SY-20 be used with solutions other than deionized water?
Yes—distilled or deionized water is strongly recommended to inhibit mineral scaling. For non-aqueous media (e.g., glycerol/water mixtures), consult the manufacturer’s chemical compatibility chart and validate temperature uniformity empirically.
Is calibration documentation provided with the unit?
Each SY-20 ships with a factory calibration certificate referencing NIST-traceable standards at three points (25 °C, 37 °C, and 60 °C), valid for 12 months from date of shipment.
Does the unit support remote monitoring via Ethernet or Wi-Fi?
No—the SY-20 does not feature built-in network connectivity. Remote data capture requires external hardware interfacing via RS232 or USB-to-serial adapters.
How often should preventive maintenance be performed?
Visual inspection and descaling (using 5% citric acid solution) are recommended every 3 months in high-use settings; annual verification of PID response time and sensor drift is advised for GLP-regulated workflows.