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| Flow
Sensors |
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A
flow sensor is a device for sensing the rate of
fluid flow whether it be a gas, steam , liquid
or solid. Normally a flow sensor is the sensing
element used in a flowmeter, or a flow datalogging
device. The flow sensor can normally measure either
velocity, flow rate or totalised flow. Flow sensors
are sometimes related to sensors called velocimeters
that measure speed of fluids flowing through them.
The flow sensor technology can be based on such
things as light, heat, electromagnetic properties
, ultrasonic and many other technologies in a
wide spectrum. A flow sensor can work by direct
measurement or inferential measurement. Several
types of flow sensors are non-mechanical and normally
work by the inferential method. |
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| Featured
flow sensor suppliers |
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The KAL-D series combines the features of our legendary KAL-K thermal flow switch with a compact size. The KAL-D uses the calorimetric principle to monitor the flowrate of non-viscous water-based liquids. The sensor tip is heated to a few degrees above the liquid temperature. As the liquid flows across the tip, it is cooled by the liquid. |
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| Featured
Products |
| KAL-D Flow Switch |
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- No Moving Parts
- Switching Range 0.15 to 6.6 Ft/Sec.
- Max. Pressure 580 PSIG
- Max. Operating Temperature 210°F
- Clean-In-Place to 250°F
- ¼ or ½ NPT or BSP connection
- PNP Normally Open or Normally closed
- LCD Trend Indication
- Adjustable Set Point
- Small Footprint (less than 2” diameter)
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The KAL-D series combines the features of our legendary KAL-K thermal flow switch with a compact size. The KAL-D uses the calorimetric principle to monitor the flowrate of non-viscous water-based liquids. The sensor tip is heated to a few degrees above the liquid temperature. As the liquid flows across the tip, it is cooled by the liquid.
The amount of cooling is proportional to liquid velocity. The liquid velocity is compared to the setpoint which is field-adjustable by the user. A transistor switch is activated when the flow setpoint is reached. The KAL-D series has a smooth measuring probe with no moving parts making it exceptionally reliable and insensitive to dirt and solids. The insertion type probe allows for flow monitoring with minimal system pressure loss.
Microprocessor-Based Temperature Compensation
The KAL-D series achieves superior compensation for changes in liquid temperature during the measuring cycle by use of a microcontroller. This method of temperature compensation allows for very precise correction of flow measurement when liquid temperature changes occur.
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Flowmeters Related products |
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References |
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