GLTlab SHA-5N-SS Five-Position Hotplate Magnetic Stirrer with 200°C Heating Surface

Overview

The GLTlab SHA-5N-SS is a five-position hotplate magnetic stirrer engineered for precise, stable heating and simultaneous stirring of multiple samples in research laboratories, quality control environments, and teaching facilities. Unlike conventional hotplate stirrers limited to ≤120 °C surface temperatures, the SHA-5N-SS features a robust stainless-steel heating surface rated for continuous operation up to 200 °C—enabling applications requiring elevated thermal conditions, such as solvent evaporation, polymer dissolution, catalyst activation, and high-boiling-point reaction monitoring. Its design follows fundamental principles of resistive heating combined with permanent-magnet-driven stirring, ensuring uniform heat distribution across each of the five independent 85 mm-diameter work zones. The unit operates without fluid circulation, making it suitable for open-vessel protocols where bath media (e.g., silicone oil or glycerol) are used directly on the plate surface—or for direct placement of glass or metal containers.

Key Features

• Five independently usable heating/stirring positions with identical thermal and rotational performance
• Stainless-steel top plate engineered for thermal durability, chemical resistance, and ease of decontamination
• Maximum surface temperature of 200 °C—validated for sustained operation under load at ≥180 °C for >4 hours
• Digital PID temperature control with 0.1 °C resolution and ±1 °C stability over time (measured at center position, ambient 23 °C)
• Adjustable stirring speed range: 0–1200 rpm, with soft-start motor control to minimize vortex disruption during startup
• 200 W total power input distributed across five zones—optimized for energy efficiency and low thermal drift
• Front-panel LED display showing real-time setpoint and actual surface temperature per active zone (when configured)
• Over-temperature protection circuitry compliant with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity standards

Sample Compatibility & Compliance

The SHA-5N-SS accommodates standard laboratory vessels including borosilicate glass beakers (50–500 mL), stainless-steel reaction tubes, and aluminum crucibles—provided base diameters do not exceed 80 mm. It supports use with silicone oil (up to 200 °C), mineral oil (up to 180 °C), and glycerol (up to 150 °C) as heat-transfer media. While not classified as a GLP/GMP-certified instrument out-of-the-box, its digital temperature logging capability (via optional RS-485 interface) enables integration into validated workflows meeting FDA 21 CFR Part 11 requirements when paired with compliant data acquisition software. The device conforms to CE marking directives (2014/30/EU EMC and 2014/35/EU LVD) and meets RoHS 2011/65/EU material restrictions.

Software & Data Management

The SHA-5N-SS includes an optional RS-485 serial interface supporting Modbus RTU protocol for remote parameter setting and real-time temperature readback. When connected to a host PC or PLC system, users may implement automated ramp-hold sequences, multi-step heating profiles, and timestamped data export in CSV format. Audit trail functionality—including operator ID, parameter changes, and alarm events—is available through third-party SCADA or LIMS platforms that support Modbus register mapping. No proprietary software is bundled; configuration relies on industry-standard terminal emulators or custom-developed scripts (Python, LabVIEW, MATLAB).

Applications

• Multi-sample dissolution testing per USP using standardized vessel arrays
• Accelerated stability studies requiring controlled elevated temperatures (e.g., ICH Q1A)
• Preparative chemistry workflows involving parallel synthesis under inert atmosphere (with compatible glassware)
• Calibration of thermocouples and RTDs using traceable reference standards in oil baths
• Viscosity measurement pre-conditioning of polymer melts prior to rheometer loading
• Teaching labs conducting Arrhenius kinetics experiments across five replicate conditions

FAQ

Is the SHA-5N-SS suitable for use with flammable solvents?
Direct heating of low-flashpoint solvents (e.g., ether, acetone) on the bare plate is not recommended. Use only with appropriate containment (e.g., sealed reactors) and secondary temperature monitoring.
Can individual zones be programmed with different temperatures?
No—the unit maintains a single setpoint across all five positions. Independent zone control requires external thermal shrouds or separate instruments.
What is the expected service life under continuous 200 °C operation?
Rated for ≥5,000 hours of cumulative operation at ≤180 °C; extended exposure above 190 °C reduces heater longevity and is not covered under warranty.
Does the unit include a calibration certificate?
A factory-as-tested temperature verification report is provided; NIST-traceable calibration is available as an add-on service.
Is the stainless-steel surface resistant to hydrochloric or nitric acid splashes?
The 304-grade stainless steel offers moderate resistance to diluted acids but is not corrosion-proof. Immediate rinsing with deionized water is required after incidental contact.