Switches

JUMO PINOS L02

Calorimetric Flow Sensor & Switch

The JUMO PINOS L02 is a thermal flow sensor designed to measure and monitor the flow velocities of liquid media. Operating on the calorimetric measuring principle, it detects flow rates by measuring the cooling effect of the liquid on a heated sensor element. This method ensures accurate measurements without any moving parts, resulting in minimal maintenance and negligible pressure loss.

• Measurement Principle: Calorimetric (thermal dispersion)
• Measuring Range: 0 to 300 cm/s (liquids)
• Sensor Length: 51 mm
• Maximum Pressure: Up to 75 bar
• Temp: -25°C to +90°C
• Output: 4 - 20 mA

SWK

Variable Area Flowmeter

The SWK is a compact and reliable flow meter and switch designed for monitoring low liquid flow rates. It operates based on a piston (float) with a permanent magnet that actuates a reed switch through the wall of the measuring tube. This non-invasive switching mechanism makes it ideal for tight spaces and sensitive applications.

• Measuring range: 0.05 - 24 l/min water
• Accuracy: ± 4 %
• Pmax: 250 bar
• Tmax: 100 °C
• Connection: 0.5" to 2"
• Material: brass; stainless steel

KAL-L

Calorimetric indicator & Switch

The KAL-L is a thermal air flow switch designed for monitoring the flow of non-hazardous gases. Utilizing the calorimetric principle, it detects flow rate changes by measuring the cooling effect of the gas on a heated sensor. This method ensures reliable operation with no moving parts, resulting in minimal maintenance and negligible pressure loss.

• Measuring range: 1 m/s - 20 m/s air
• Pmax: 8 bar
• Tmax: 120°C
• Switching accuracy: ±10
• Connection: insertion
• Material: st-steel

PSE

Paddle Switch

The PSE is a mechanical flow switch designed for monitoring the flow of liquids in pipelines. Utilizing a paddle mechanism, it detects flow rates by the deflection of a baffle plate, which actuates a reed contact. This design ensures reliable operation without the need for external power sources.

• Switching range: 68 - 533 l/min water
• Pmax: 100 bar
• Tmax: 110 °C
• Connection: G 0.5
• Material: brass; stainless steel

FPS

Paddle Bellows Flow Monitor

The FPS is a mechanical flow switch designed for monitoring liquid flow in pipelines. Utilizing the paddle bellows principle, it detects flow rates by the deflection of a paddle, which actuates a microswitch. This design ensures reliable operation without the need for external power sources.

• Switching range: 0.17 to 165.7 m³/h water
• Pmax: 11 bar (brass); 30 bar (stainless steel)
• Tmax: 120°C
• Material: brass; stainless steel
• Connection: insertion