Introduction: UMD-99 series static pressure type liquid level transmitter is based on the principle that the measured liquid static pressure is proportional to the height of the liquid. It introduces the ceramic pressure sensor from Kavlico of the United States and the diffused silicon pressure sensor from Microsenor, and uses imported key components to assemble A liquid level measuring instrument produced. Output standard 4-20mA signal, intelligent type, HART protocol optional, suitable for liquid level measurement of various media in petrochemical, metallurgy, electric power, pharmaceutical, water supply and drainage, environmental protection and other systems and industries. Features: 1. Strong anti-overload and anti-shock ability, overload can reach more than 5 times the range. 2. High stability, better than 0.1% of full scale per year. This technical index is several times higher than other capacitive transmitters. 3. The temperature drift is small. Because the intermediary liquid in the pressure measuring element is eliminated, the sensor not only obtains a high measurement accuracy, but also is rarely affected by the temperature gradient: ±0.2%/10°C. 4. The product structure is unique, simple and reasonable, small in size, light in weight, and easy to install and maintain. 5. Using unique ceramic and polytetrafluoroethylene materials, with special anti-corrosion function, suitable for any medium other than HF. Technical parameter: Measuring range: stainless steel guide rod type 0～5m cable type 0～100m Accuracy level: 0.5 level, 0.2 level (system accuracy) Environment temperature: -20℃～80℃ Relative humidity: <95% Medium temperature: -20℃～+80℃ Long-term stability: <0.1%F.S/year Temperature stability: <±0.1%/10℃ Power supply: 24VDC Signal output: two-wire system output 4～20mA, intelligent type with HART protocol Medium density range: 0.5g/cm3～2.0g/cm3 Overload capacity (standard range): UMD-99A: 5 times UMD-99B: 2 times Protection level: transmitter IP65; sensor IP68 Transmitter housing material: die-cast aluminum Probe type 1.Stainless steel casing diffused silicon piezoresistive core (Type A): generally non-corrosive medium measurement 2.Stainless steel shell ceramic capacitor core (Type B): measurement of particles, easy to block, and corrosive media 3.Tetrafluoro shell ceramic capacitor core (F type): corrosive medium measurement
Introduction: UMD-99 series static pressure type liquid level transmitter is based on the principle that the measured liquid static pressure is proportional to the height of the liquid. It introduces the ceramic pressure sensor from Kavlico of the United States and the diffused silicon pressure sensor from Microsenor, and uses imported key components to assemble A liquid level measuring instrument produced. Output standard 4-20mA signal, intelligent type, HART protocol optional, suitable for liquid level measurement of various media in petrochemical, metallurgy, electric power, pharmaceutical, water supply and drainage, environmental protection and other systems and industries.
