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.
| Model | Features |
|---|---|
| HPQ-T1 | Applicable pipe diameter: 8–13 mm, NPN output |
| HPQ-T1-002 | Applicable pipe diameter: 8–13 mm, NPN output, Light-ON, adjustable sensitivity |
| HPQ-T1-003 | Applicable pipe diameter: 8–13 mm, NPN output, Dark-ON, adjustable sensitivity |
| HPQ-T1-004 | Applicable pipe diameter: 3–7 mm, NPN output |
| HPQ-T2 | Applicable pipe diameter: 8–13 mm, PNP output |
| HPQ-T2-005 | Applicable pipe diameter: 3–7 mm, PNP output |
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