General Description

The LT2020-ST Laser Distance Meter operates over a substantial range off static or passing product in difficult areas in harsh environments.
The LT2020-ST measures distances over a working range up to 30 meters off of natural surfaces , up to 100 meters off of white surfaces and up to 150 meters off of a special reflector. For operation with automated positioning control of material handling transport systems a white reflective target is used or the special reflector is used. The LT2020-ST can provide a measuring rate as low as 20 milliseconds when used with a white target or special reflector target.

Especially suited for precise detection and measurement of cold/hot product at temperatures up to 600°C. For higher product temperature a Model LT2000-HT is available for measurement of cold/hot product at product temperatures up to 1200°C.

Straightforward alignment is easily accomplished via the visible red laser measuring beam.

Accuracy is +/- 2mm to +/- 5mm according to ambient temperature and surface reflectivity. Repeatability is +/- 0.5mm and the user scalable resolution is 0.1mm.

The zero offset and the span of the 4 – 20 mA analogue output are both user programmable. The distance offset is also user programmable, this allows the user to define a zero point independent of the analogue output zero offset.

Provided with a user programmable digital switching output which is triggered by exceeding in the positive or negative direction a user programmable distance threshold. The hysteresis of the digital switching output is also programmable.

This Robust Laser Distance Meter with built-in air coolant chamber venting as air purge. Standard operating temperature without air cooling is 50°C and with air cooling is 60°C. Optional water cooling is available for an operating temperature up to 70°C.

The LT2020-ST Laser Distance Meter provides a highly accurate measurement reading. It is ideal for length and width determination, and checking position of product in and around furnace areas.

Supplied as standard with a switch selectable RS232 & RS422 serial interface with a 2400 to 38,400 Baud Rate & a programmable 4 – 20 mA 16 BIT analogue output. An optional ProfiBus DP Gateway Interface Box is available. ProfiBus DP, DeviceNet and Ethernet Interface Options.

LT2020-ST Datasheet