ABB KB² Fibre-Optic Sheet Break Detector

KPM Products | Paper Machine Measurements

The KB2 system is proven with hundreds of installations around the world, and set as a mill standard for many customers.

KB2 Fibre-Optic Sheet Break Detector is the new generation sheet break

detector that with the latest RGB technology enables more light with

effective power LED. This allows longer detection distance and operation in high

ambient light condition. KB2 is the perfect choice for installations in unclean, steamy

and high temperature environments, or where the space is limited.

KB2 Fibre-Optic Sheet Break Detection system is designed to

monitor sheet breaks in harsh environments. The non-contact

sensor is placed above or under the web to be monitored.

The system is proven with hundreds of installations around the

world, and set as a mill standard for many customers.

Thanks to the air purged system in the sensor head, keeping the

optics free from dirt, steam or high temperatures, KB2 is suitable

for installations in harsh environments or where the space is

limited. In addition to open-draw applications the breaks can be

detected against felt, wire, or even against a cylinder.

RGB Colour and IR measurement

KB2 has both, RGB or Infrared light sources to perform superiorly

with all paper and board grades and applications regardless

of colour. The RGB colour measurement can handle all

sheet, wire and felt colours providing reliable break detection.

Fast break detection

KB2’s digital signal processing technology measures all signals

a thousand times per second. KB2 is immune to ambient light

changes by measuring the backlight intensity. The break detection

delay is very short, a minimum of 15 ms – with digital

filtration the user can select how many measurement cycles

should be used for break detection.