IKA C-MAG HP 7 Electric Heating Plate with Magnetic Stirring

Overview

The IKA C-MAG HP 7 is a high-performance electric heating plate with integrated magnetic stirring, engineered for precision thermal control and reproducible sample preparation in analytical, pharmaceutical, and quality control laboratories. It operates on the principle of resistive ceramic heating combined with permanent-magnet-driven stirring—enabling simultaneous, independent regulation of plate surface temperature and rotational speed. Unlike basic hotplates, the C-MAG HP 7 employs microprocessor-based closed-loop feedback to continuously monitor and adjust power delivery to the ceramic heating element, ensuring thermal stability within ±2 °C across its full operating range (50–500 °C). Its seamless ceramic plate resists aggressive reagents—including concentrated acids, alkalis, and organic solvents—making it suitable for digestion, solvent reflux, and controlled evaporation protocols. The unit complies with DIN EN 60529 (IP21 ingress protection), confirming resistance to vertically falling drops and limited operator contact during operation.

Key Features

• Seamless ceramic heating surface (180 × 180 mm) with exceptional chemical inertness and thermal uniformity
• Dual-function digital interface: independent, real-time adjustment of temperature (°C) and stirring speed (rpm)
• Integrated safety cut-off at 550 °C prevents overheating under fault conditions or empty-vessel operation
• Elevated control panel design minimizes risk of liquid splashes onto electronics while improving visibility and ergonomics
• External temperature sensor port compatible with IKA ETS-D5 probe for accurate solution-phase temperature monitoring (required for precise thermal validation per ISO 17025 or USP <1058>)
• Robust mechanical architecture: aluminum housing with reinforced base, rated for continuous operation up to 10 L vessel load
• Compliant with electromagnetic compatibility standards (EN 61326-1) and low-energy standby mode (<0.5 W)

Sample Compatibility & Compliance

The C-MAG HP 7 accommodates standard laboratory glassware (Erlenmeyer flasks, round-bottom flasks, beakers) from 50 mL to 10 L capacity. Its flat, chemically resistant ceramic surface ensures stable positioning of vessels during vigorous stirring—even under viscous or foaming conditions. For regulated environments, the device supports GLP/GMP workflows through traceable temperature calibration (using external ETS-D5 + certified reference thermometer) and meets requirements for equipment qualification (IQ/OQ/PQ) when paired with documented calibration records. While not intrinsically safe for explosive atmospheres, its IP21 rating and thermal fail-safes align with general laboratory safety practices outlined in ANSI Z358.1 and EU Directive 2006/42/EC (Machinery Directive).

Software & Data Management

The C-MAG HP 7 operates as a standalone instrument without proprietary software dependency. All operational parameters—including setpoints, actual readings, and runtime—are displayed locally via a high-contrast 4-digit LED screen. For audit-ready documentation, users may integrate the unit into lab-wide data acquisition systems using analog output (0–10 V) from the ETS-D5 sensor channel (when connected), enabling time-stamped temperature logging in compliant LIMS or SCADA platforms. Though the device itself does not support FDA 21 CFR Part 11 electronic signatures, its deterministic behavior, calibration traceability, and physical parameter lockout (via key switch option on select configurations) facilitate alignment with data integrity principles in regulated QC labs.

Applications

• Controlled acid digestion of environmental or biological samples prior to ICP-MS or AAS analysis
• Standardized dissolution testing per USP <711> and Ph. Eur. 2.9.3 using calibrated vessel temperature
• Preparative chemistry requiring prolonged reflux under inert atmosphere (e.g., Grignard synthesis)
• QC batch processing of pharmaceutical excipients where thermal history impacts crystallinity or moisture content
• Calibration of thermocouples and RTDs against NIST-traceable references using stabilized plate temperature
• Method development for ASTM D5293 (cold cranking simulator viscosity) sample conditioning

FAQ

Does the C-MAG HP 7 support programmable ramp-soak temperature profiles?
No—this model provides manual setpoint control only. For multi-step thermal protocols, integration with an external programmable controller or use of IKA’s RET cordless series is recommended.
Can the ETS-D5 sensor be used for both temperature control and data logging?
Yes—the ETS-D5 delivers analog output (0–10 V) proportional to measured temperature, enabling connection to third-party loggers or DAQ systems for long-term trend analysis.
Is the ceramic plate replaceable if cracked or chemically etched?
No—the plate is permanently bonded to the heating element. Units with compromised surfaces must undergo factory service or replacement per IKA’s warranty and repair policy.
What is the minimum vessel volume required for stable magnetic coupling?
For reliable stirring at 150 rpm or above, a minimum liquid depth of 20 mm and stir bar length ≥40 mm is recommended to ensure torque transmission without slippage.
How often should the unit be calibrated for ISO/IEC 17025 compliance?
Annual calibration is typical; however, frequency must be justified by risk assessment, usage intensity, and historical performance data per ILAC-G8:2023 guidelines.