Medium‑Volume Sample Digestion

The LCD Digital Heating Magnetic Stirrer (MS‑H280‑F250) is a modular, high‑safety, programmable benchtop instrument engineered for precise, safe, and versatile medium‑volume heating and stirring in clinical diagnostics, pharmaceutical quality control, analytical chemistry, mining, and academic research laboratories. Featuring an interchangeable 250 mL round‑bottom flask heating mantle precisely contoured (inner diameter 89.75 mm) for standard 250 mL borosilicate round‑bottom flasks, this instrument can be configured as a dedicated 250 mL round‑bottom flask heater, or run in three independent modes: full heating and stirring, detached as a standard 20‑litre magnetic stirrer on its Ø135 mm ceramic‑coated work plate, or as a “Two‑in‑One” system where one unit heats (using the heating mantle) while a separate, independent unit stirs (using the work plate) simultaneously. The system includes the PT1000 external temperature sensor, support rod, support clamp and magnetic stirring bar.

Every LCD Digital Heating Magnetic Stirrer (MS‑H280‑F250) features a high‑resolution LCD display showing set and actual values for temperature, speed and timer; a maintenance‑free, spark‑free brushless DC motor; and an alumina‑fibre heating mantle with aluminium‑silicate (ceramic) wool insulation for uniform heat distribution and a long service life. The instrument includes the PT1000 external temperature sensor (±0.2 °C accuracy) for precise control of the actual sample liquid temperature. A built‑in automatic temperature self‑calibration function further enhances accuracy for demanding applications. The programmable timer (1 min to 99 h 59 min) enables fully unattended, automated operation.

Key user‑focused features for medium‑volume applications include interchangeable heating mantles for 100 mL, 250 mL, 500 mL and 1000 mL round‑bottom flasks (F series) and flat‑bottom beakers (B series), arbitrarily interchangeable; true “Two‑in‑One” independent operation; and a compact 3.7 kg footprint (295 × 160 mm).

Safety is exemplary with TÜV certification (CE, cTUVus, FCC), dual independent safety circuits providing redundant over‑temperature protection (420 °C hardware cutoff), an independent residual heat warning indicator (“HOT” flashes at >50 °C and continues even after the unit is turned off, including unplugged, until the mantle is safe to touch), and IP21‑rated housing with a fire‑resistant metal outer shell. Flask‑position detection safety will stop heating if the flask is out of position, preventing unsafe “dry” heating of the mantle.

For the clinical laboratory scientist, trace element analyst, and pharmaceutical QC chemist, the MS‑H280‑F250 delivers the modular versatility, medium‑batch processing capacity, and high safety required for sample digestion for trace element analysis (blood lead, urine cadmium, heavy metals), medium‑volume organic synthesis, dissolution testing and solid‑liquid extraction. For the patient, the reliable performance of this instrument ensures that diagnostic tests and pharmaceutical products are accurate, reproducible and processed efficiently, directly supporting effective clinical decision‑making, appropriate treatment selection and patient safety.