ABB Customer World: How many ways can you use laser level detection?

3/14/2017

HOUSTON -- This year at ABB Customer World, one of the many new products being introduced is the LLT100, a new laser level transmitter from the company’s Measurement and Analytics business. It’s specifically made for industrial applications and harsh environments.

So how many “environments” can it be used in?  Let’s find out…

First, it’s clearly at home in the oil and gas industry. The LLT100 is used in API separators, for example, to measure water and oil levels in storage tanks. Measurements are independent

of the dielectric constant of the material, and the LLT100 is not affected by droplets of water on its window.

With a <0.3° beam divergence, the narrow laser beam also allows LLT100 to take measurements in tight spaces such as a 2 in. diameter pipe over 15 ft. in length. This is particularly convenient when a tank contains an agitator, as it is often possible to aim the beam between the tank wall and the edge of the agitator. In cases where it is necessary to place the laser beam in the path of an agitator, filtering functions can be used to reliably track the real liquid surface.

Offshore, the LLT100 can handle a variety of critical functions. It can reliably monitor sea level beneath the platform, even in rough weather, and it can measure the distance between objects to keep cranes operating safely.

It can also be used for precise positioning. Using laser measurement for positioning results in reduced maintenance costs when compared to mechanical devices such as limit switches that are often damaged. Laser level measurement products are placed away from moving objects and so tend to have longer lifetimes.

LLT100 also provides a very reliable way of measuring the height and angle of a floating roof. LLT100 can be placed very close to the wall if necessary. Since the instrument’s beam is very narrow, measurements are not affected by local structures. This provides reliable measurements that do not require reconfiguration over time.

Using several LLT100 on the same presents no issues. Units will not interfere with each other and no special setting is required. The LLT100 is not affected by rain or snow, but when used outside, a dust tube protects it from the environment, reducing maintenance to a minimum.

So, for simple, reliable, non-contact level measurement for just about any application, it’s all about the laser.

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