Kytölä K-Smart KxS Variable Area Flow Meter with 4-20 mA Output

The K-Smart series adds an electronic transmitter to a variable area flow meter, offering both a local indication and a 4-20 mA signal. It is recommended for flow monitoring on cooling, sealing and flushing water and gas lines. An LED on the transmitter shows high flow in yellow, within limits in green and low flow in red.

Models and values

• KAS has aluminum end blocks, KHS 316 stainless, and KKS nylon end blocks with a 316 valve body; connection G or NPT 1 inch.
• For water, the lowest range is 7.5-40 L/min and the highest 10-120 L/min; for air, there are ranges of 200-1200 and 400-2800 NL/min.
• Output 3-wire 4-20 mA, supply 24 VDC; transmitter housing IP65.
• Flow tube Grilamid (PA-12), float 316L; accuracy ±5% of full scale.
• Maximum pressure 30 bar for KAS and KHS, 20 bar for KKS.

Choosing KxS / KAS / KHS / KKS

Because it is designed for high-flow lines, this series is suitable not for small laboratory flows but for flows on the scale of tens of liters, such as cooling and flushing water. Temperature is limited to 80 °C; a special 120 °C version is available for KAS and KHS.

Tetra selects the body material and flow range according to line conditions and supports scaling of the 4-20 mA input on the PLC or DCS side. Adding an alarm sensor and cleaning internal parts are done during field service.