The heat transfer material is silicone oil, and the measurement method is in full compliance with the pharmacopoeia standards. Three samples can be measured at the same time, and the melting process can be directly observed, and colored samples can be measured. The main technical parameters: Measuring range of melting point: 40℃～280℃ Melting point display mode: liquid crystal display Display minimum reading: 0.1℃ Accuracy of determining melting point: <200℃±0.4℃ ≥200℃±0.7℃ Repeatability: 0.3°C when the heating rate is 1°C/min Initial temperature setting accuracy: ±0.1℃ Linear heating rate: 0.5°C/min, 1.0°C/min, 1.5°C/min, 3°C/min four gears Linear heating rate error: 10% Heat transfer medium: silicone oil Instrument level: This instrument meets the technical requirements of level 0.5 in JJG701-1990 Capillary tube size: inner diameter: 0.90mm～1.20mm Wall thickness: 0.10mm～0.15mm Length: 120mm Output communication interface: RS232 Power supply: AC220V±22V 50Hz±1Hz Power: 250W Dimensions: 270mm×310mm×400mm Net weight of the instrument: 12.5kg