Automatic Open Cup Flash Point Tester Factory

Automatic Open Cup Flash Point Tester

Flash point is a critical safety parameter for flammable liquids. The Automatic Open Cup Flash Point Tester from Changsha Friend Experimental Analysis Instrument Co., Ltd. automates the open-cup method to determine the lowest temperature at which vapors ignite in ambient air.

Samples are loaded into an open brass cup, heated at a controlled rate (e.g., 1–6 °C/min), and periodically exposed to an automatic ignition source above the liquid surface. Optical or ionization sensors detect the flash event, triggering a snapshot of the current temperature. Test security features include over-temperature cut-off and flame shields.

Key components consist of a PID-controlled heating mantle, a programmable ignition assembly, and a high-precision thermocouple positioned near the cup rim. The user interface enables selection of test standards (e.g., ASTM D92, ISO 2592) and stores results with metadata such as ambient conditions and sample ID.

This tester supports fuel processing, solvent production, lubricant formulation, and chemical manufacturing. Laboratories rely on automatic flash point data to classify flammable liquids for storage, transport, and hazard communication.

For reliable operation, ensure samples are free of particulate contaminants, verify thermocouple calibration against a certified thermometer, and replace ignition elements periodically. Regular cleaning of the cup prevents residue buildup that could alter thermal transfer. Automated open-cup testing enhances throughput, reduces operator exposure, and delivers consistent safety data.