... measurement of heat heavy oil (temperature≤500°C,pressure ≤4.0Mpa),viscous and smudgy medium, asphalt etc as well as ... , explosive and corrosive medium etc. It is an ideal level instrument for petroleum, chemical, metallurgy and pharmaceutical industries etc. ... Power supply: 24VDCOutput: 4~20mA +HARTFlange: Default setting: HG20595-97 DN250 PN4.0 ...