ZSBB-724 Constant-Temperature Water Bath Shaker

Overview

The ZSBB-724 Constant-Temperature Water Bath Shaker is a precision-engineered laboratory instrument designed for simultaneous temperature control and orbital agitation in aqueous environments. It integrates a high-stability water bath system with a synchronized shaker platform, enabling uniform thermal distribution and consistent mixing across multiple samples. The device operates on the principle of resistive heating combined with PID-controlled feedback regulation, utilizing a high-response platinum resistance temperature sensor (PT100-grade equivalent) immersed directly in the bath medium. Its dual-row, four-position configuration supports standardized test tubes, flasks, and culture vessels—making it especially suitable for applications requiring reproducible incubation under controlled mechanical agitation, such as microbial growth studies, enzyme kinetics assays, solubility testing, and cell suspension maintenance. Unlike standalone water baths or shakers, the ZSBB-724 eliminates inter-device thermal lag and positional variability, ensuring traceable, GLP-aligned experimental conditions.

Key Features

• PID-based digital temperature controller with ±0.1 °C stability over ambient to 100 °C range, validated per ASTM E2209–22 guidelines for liquid bath calibration
• Backlit LCD interface displaying real-time bath temperature, setpoint, timer status, and operational alerts—including low-water-level detection and dry-burn prevention circuitry
• Auto-recovery function: resumes pre-interruption settings following power loss, supporting unattended operation for up to 100 hours
• Parameter encryption lock prevents unauthorized modification of critical settings—essential for ISO/IEC 17025-compliant laboratories
• Memory retention retains user-defined protocols across power cycles, reducing setup time and operator-dependent variability
• Aerodynamically optimized chassis with corrosion-resistant stainless-steel inner chamber (304 grade), seamless welds, and insulated outer housing for energy efficiency and surface safety
• Orbital shaking mechanism engineered for low-vibration performance (≤1 mm amplitude, 30–250 rpm range, though not digitally adjustable on this model—mechanically fixed at optimal 80 rpm for general-purpose use)

Sample Compatibility & Compliance

The ZSBB-724 accommodates standard cylindrical containers including 15 mL and 50 mL conical tubes, 100 mL Erlenmeyer flasks, and multi-well plate carriers (with optional adapter kits). Its 16 L internal volume and 320 × 320 × 160 mm chamber geometry allow full submersion of most common biological and chemical sample formats. The unit complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets CE marking requirements for EMC and low-voltage directives. While not certified for cleanroom use (ISO 14644), its sealed construction and absence of exposed wiring minimize particulate shedding. For regulated environments, audit trails are maintained via manual logbook entry; electronic data capture requires integration with external LIMS or SCADA systems.

Software & Data Management

The ZSBB-724 operates as a stand-alone instrument with embedded firmware—no proprietary software or driver installation required. All operational parameters are configured locally via tactile membrane keys and verified through the LCD display. Though it lacks native USB/Ethernet connectivity or FDA 21 CFR Part 11-compliant electronic signatures, its deterministic behavior, parameter locking, and auto-restart functionality support ALCOA+ data integrity principles when used within documented SOPs. Users may export temperature logs manually using external thermocouple dataloggers (e.g., Omega OM-DAQPRO-5300) interfaced via analog output ports (available on request with OEM upgrade kit).

Applications

This instrument serves routine and research-grade workflows across academic, pharmaceutical, and industrial labs. Typical use cases include: bacterial and yeast culture expansion under agitated conditions; dissolution testing per USP ; antigen-antibody binding optimization; DNA hybridization protocols requiring precise thermal ramping; buffer equilibration prior to chromatography; and QC stability studies for liquid formulations. Its 100 °C upper limit and ±0.1 °C accuracy also support accelerated degradation trials aligned with ICH Q1A(R2) guidance. In teaching laboratories, the ZSBB-724 provides pedagogically robust exposure to coupled thermal–mechanical process control fundamentals.

FAQ

Is the ZSBB-724 compatible with oil-based media?
No—it is strictly rated for aqueous solutions only. Use of oils or organic solvents may compromise seal integrity and trigger safety cutoffs.
Can the shaking speed be adjusted?
No. The unit operates at a fixed orbital frequency optimized for general microbiological and biochemical applications (approximately 80 rpm). Variable-speed control is not supported in this configuration.
Does it support external temperature probe input for sample-specific monitoring?
Not natively. The internal PT100 sensor regulates bath temperature only. For sample-core measurement, users must integrate third-party immersion probes connected to independent recorders.
What maintenance is required for long-term reliability?
Monthly descaling with 5% acetic acid solution is recommended for hard-water regions; annual inspection of heater element insulation resistance (>2 MΩ) ensures compliance with IEC 61010-1.
Is technical documentation available in English with calibration procedures?
Yes—full bilingual (EN/CN) operation manual, traceable calibration certificate (NIST-traceable reference thermometer), and preventive maintenance checklist are supplied with each unit.