Detecting the upper and lower limits of the liquid level in a tank
- This switch incorporates an amplifier and can be attached to the sight tubes and level gauge pipes of semiconductor and FPD manufacturing equipment, etc., to detect liquid level
- Refraction-based detection ensures sufficient gain between light-ON and dark-ON light levels
- A detection method that is suitable for liquids with poor transmittance (photoresist liquid, waste fluids, etc.) and that minimizes malfunctions due to bubbles, water droplets, etc.
Products Introduction Video Model HPQ-T_ _ _
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Features
- Fits various pipe diameters
Can be attached to a pipe with outer diameters of 8 to 13 mm (thickness: 1 mm).
PFA pipes are recommended. For pipes made of other materials, please contact us. - Repetitive detection of liquid level with high accuracy
A 1 mm-wide slit is provided for the optical axis, achieving a high repetitive detection accuracy of ±0.5 mm. - Easy operation check and adjustment of gang-mounted switches
The operation panel located on the side improves usability and facilitates operation checks.
The operation mode can be changed using the Light-ON/Dark-On switch. By also using the operation indicator, the I/O can be checked. - PNP output is available.
PNP output, which is often required for equipment to be exported, is also available as a standard feature.
Detection principle
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Inquiries about control products
