Technical datasheet for KSR optoelectronic level switches (OLS-S, OLS-H) and switching amplifier (OSA-S), covering specifications, approvals, and applications.
This document is a technical data sheet for the KSR OLS series of optoelectronic level switches. The product line includes the standard version (OLS-S), high-pressure version (OLS-H), and the optional switching amplifier model OSA-S. These devices are designed to detect limit levels in liquids using infrared light reflection principles, independent of physical characteristics like color or density.
The datasheet provides detailed technical specifications for various configurations, including temperature ranges from -269°C to +400°C and pressure capabilities up to 500 bar. It covers material options such as stainless steel and Hastelloy, glass tip shapes, and mounting positions. Additionally, the document details electrical connection diagrams, ingress protection ratings (IP65/IP20), and specific approval certifications including ATEX for hazardous areas.
| Temperature range (Medium) | -65 ... +250 °C |
|---|---|
| Ambient temperature | -65 ... +95 °C |
| Pressure range (Standard) | 0 ... 250 bar |
| Pressure range (High-Pressure) | 0 ... 500 bar |
| Measuring accuracy | ±0.5 mm |
| Repeat accuracy | ±0.1 mm |
| Light source wavelength | IR light 930 nm |
| Ingress protection (Sensor) | IP65 |
| Process connection options | G 1/2 A, 1/2 NPT, Flange |
They are suitable for chemical, petrochemical, natural gas, offshore industries, shipbuilding, machine building, and power generating equipment.
Yes, special versions are available with Ex i approval for use in Zone 0 and Zone 1 hazardous areas.
The OSA-S is a switching amplifier that allows the sensor to be used as overflow control.