KPM offers full range of optical consistency transmitters for In-Line and By-Pass installations. Optical consistency transmitters are best choice for range 0-2%Cs. The sensor measures fibers and particles that are greater than 0.88 microns, such as stock from 0.001% (10ppm) to 5%, (depending on type of stock).
The measuring principle is based on the ability of suspended particles to absorb and reflect / transmit NIR-light (near infrared), which is pulsed at 880 nm.

The OC sensors are constructed of 316SS with sapphire glass lenses, to withstand the most aggressive media. Sensor Pressure class in PN25 for by pass sensors and PN16 for In-Line sensors.

The OC 20/70 can be installed directly to process pipe similar way like blade type consistency transmitters.

The by-pass Consistency Sensors are developed to measure fiber consistency in liquids from 0,001 – 2%. The OC-P03/20 has polarizing measurement making it suitable for paper machine retention measurement, where is variation in ash content. The sensors have a 20 mm (P03/20 3 mm) gap between the lenses, which produces a self-cleaning effect due to the increased velocity. and 20/25-LC for Mill effluents.
Remote Display unit for easy set up
The sensors are pre-calibrated for quick and easy start up. After installation, one-point adjustment is performed against a laboratory test.
The Display unit has four selectable calibration curves for applications with varying furnishes.