Description
A low-power laser measures the level from above, without touching the surface. That makes aggressive media possible without the wear a contacting probe would suffer, and it makes the reading independent of colour — liquids, fluids, grain and bulk solids alike. The range reaches 4000 mm, the sensor scans once a second and resolves 1 mm, with a blind spot of 30 mm. Standard tank formats are covered as they are; irregular geometries are taken up by up to 20 programmable measuring points, and a filter allows non-static tank situations. The sensor is a disc of Ø 66 × 31 mm in polycarbonate with an NBR gasket, rated IP68, fitted into an SAE 5-hole pattern; a 4-hole adapter is available as an accessory. The output is 4 … 20 mA over a 150 mm cable tail ending in an M12 4-pole connector. The laser is class 1 at about 920 nm.
Measurement and output
- Level 0 … 4000 mm, non-contact
- Laser class 1, approx. 920 nm
- Resolution 1 mm, scanning 1 Hz
- Blind spot 30 mm
- Colour independent, liquids and bulk solids
- Up to 20 programmable measuring points
- Output 4 … 20 mA, resolution 0.01 mA
- Fixed measuring ranges, set at the factory
Device and mounting
- Disc Ø 66 × 31 mm, polycarbonate
- NBR gasket, protection class IP68
- SAE 5 hole standard, 4 hole adapter optional
- Max. built-in recess 47.8 mm
- Cable 150 mm, plug M12 4-pole
- Accessory cables of 1 m and 3 m
- Supply 8 … 33 V DC, reverse polarity protected
- Operation and storage −20 … +80 °C
All technical data, dimensions and available versions are listed in the datasheet for download.