HH-6 Digital Temperature-Controlled Water Bath

Overview

The HH-6 Digital Temperature-Controlled Water Bath is a precision-engineered laboratory water bath designed for stable, uniform thermal conditioning of samples in glassware, sealed tubes, or reaction vessels. It operates on the principle of convective heat transfer through a thermostatically regulated water medium, ensuring minimal temperature gradients across the bath chamber. Engineered for routine applications requiring consistent thermal environments—such as enzyme incubation, sample warming prior to analysis, dissolution testing, and reagent equilibration—the HH-6 delivers reliable performance under continuous operation in QC labs, academic research facilities, and pharmaceutical development settings.

Key Features

• Precise digital PID temperature control with ±0.5 °C accuracy across the full operating range (ambient to 100 °C), verified at multiple setpoints per ISO/IEC 17025 calibration guidelines.
• High-efficiency 1500 W heating system with rapid thermal recovery (<8 min from 25 °C to 95 °C at half-load), minimizing downtime between experimental cycles.
• Stainless steel inner tank (304 grade) with corrosion-resistant epoxy-coated outer housing, supporting long-term durability in humid or chemically exposed lab environments.
• LED digital display with intuitive single-knob interface enables real-time monitoring and adjustment without menu navigation delays.
• Over-temperature protection circuit automatically deactivates heating elements if sensor feedback exceeds user-defined safety limit, complying with IEC 61010-1 Class II electrical safety requirements.
• Level-sensitive auto-shutoff function prevents dry-run damage when water volume falls below operational minimum (≥2.5 L recommended working volume).

Sample Compatibility & Compliance

The HH-6 accommodates standard laboratory glassware including 10–500 mL beakers, test tubes, centrifuge tubes, and jacketed flasks up to 150 mm in height. Its open-bath configuration supports simultaneous immersion of multiple vessels with unrestricted access for stirring, sampling, or probe insertion. The unit meets general-purpose laboratory equipment requirements under ISO 9001 quality management systems and is compatible with GLP-compliant workflows when integrated with documented calibration records (traceable to NIM-certified reference thermometers). While not certified for sterile processing, it supports USP environmental conditioning protocols when operated within validated temperature stability windows.

Software & Data Management

The HH-6 operates as a standalone analog-digital hybrid instrument with no embedded data logging or network connectivity. Temperature setpoint and real-time reading are displayed locally only; however, its stable thermal output enables seamless integration with external data acquisition systems via optional PT100 probe outputs (available upon request). For laboratories implementing 21 CFR Part 11 compliance, third-party USB or RS-232 temperature loggers—configured with audit trail functionality and electronic signature support—can be deployed alongside the unit to satisfy traceability and record retention mandates.

Applications

• Pre-warming of culture media and biological reagents prior to cell seeding or microbial inoculation.
• Controlled dissolution testing of solid dosage forms in accordance with USP and Ph. Eur. 2.9.3 methodologies.
• Enzyme kinetics assays requiring precise thermal stabilization during spectrophotometric measurement intervals.
• Calibration of liquid-in-glass thermometers and RTD sensors using fixed-point water bath reference conditions.
• Accelerated stability studies for excipients and active pharmaceutical ingredients under ICH Q1A(R3) guidance.
• Sample homogenization and viscosity reduction in polymer solutions prior to rheological characterization.

FAQ

What is the recommended maintenance schedule for the HH-6 water bath?

Perform weekly visual inspection of water level and tank cleanliness; descale monthly using 5% citric acid solution if operating above 60 °C for >4 hours/day.
Can the HH-6 be used with non-aqueous fluids such as silicone oil?

No—this model is specifically engineered for aqueous media only. Use of oils or organic solvents may compromise seal integrity and void warranty.
Is the temperature sensor calibrated at the factory?

Yes—each unit ships with a certificate of conformance indicating calibration against a NIST-traceable reference thermometer at 37 °C and 95 °C.
Does the HH-6 support external temperature probes for remote monitoring?

Standard configuration does not include probe ports, but custom variants with PT100 output terminals can be ordered with lead time.
What safety certifications does the HH-6 hold?

Complies with IEC 61010-1:2010 for laboratory electrical equipment, including dielectric strength, leakage current, and mechanical stability tests.