Optomax Basic
Optical level switches operate based on the principles of light refraction and reflection to detect the presence or absence of liquids. Compared to conventional mechanical switches, which are subject to wear and reduced reliability over time, this method offers a high level of accuracy.
Optical level switches deliver consistent performance even in demanding environments, including extreme temperatures, high pressures and exposure to aggressive chemicals. This versatility makes them suitable for a wide range of industries, from pharmaceuticals and food and beverage to oil and gas.
Enclosure options
Suitable for both indoor and outdoor sensor installation, the housing is available in two chemically resistant materials: polysulfone, the standard choice for most applications, and Trogamid, which is commonly used in the food and beverage industry.
In addition, we offer customised housing designs tailored to your specific installation requirements.
Functionality
Optical level switches use an infrared LED and a phototransistor, which are positioned precisely at the sensor tip. When the tip is in air, the infrared light inside the tip is reflected to the phototransistor, creating a strong optical coupling between these elements. When the sensor tip is immersed in a liquid, the infrared light refracts, resulting in a reduction in the amount of light at the phototransistor, which changes the state of the output.
- Purely optical solution without protective circuitry, voltage regulation, processing electronics, or output stage
- Connection to the application by the customer themselves
- Housing material optionally available in polysulfone or Trogamid
- Indoor and outdoor installation possible
- Ideal for price-sensitive, high-volume OEM applications
| Supply voltage (Vs) | Any with a suitable LED current limiting resistor |
| LED forward current (lf) | 10mA recommended |
| Output signal | Open-circuit phototransistor |
| Operating temperature | -25°C to +80°C |
| Storage temperature | -30°C to +85°C |
| Enclosure options | Fastening from the inside or outside |
| Housing material | Polysulfones or Trogamid® |
| Connection | 24AWG, 250mm PVDF wires, 10mm tinned |
| Ambient pressure | 7-20 bar |
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Our experts have been delivering intelligent solutions for more than 30 years. We develop and customise sensor solutions tailored to your requirements. Drawing on our extensive market knowledge, we identify the ideal sensor solution for every application.
