• Cost-effective small purgemeter
• Low-cost measuring principle without auxiliary power
• Maximum measuring error: ±1 / ±2.5 / ±4% (acc. to VDI/VDE 3513-2) or ±1 / ±2 / ±3% of full scale
• Fine metering of very small volumes of liquids and gases
• Integrated high quality needle valve in foot or head piece
• Stainless steel, brass or PVDF fittings
• Suitable for use in Safety Instrumented Systems with SIL 2, in redundant design (1oo2) also in SIL 3 applications (type A device)
• No wearing parts

DK46/47/48/800 Technical Datasheet 

https://www.krohne.com/en-us/products/flow-measurement/flowmeters/variable-area-flowmeters/dk46-47-48-800