Close distance surface roughness sensor with 420 mA output series D331

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Support:  1-800-295-5693

HS Tariff:  9027.50.40.20

ISO-9000 Registered




Series 331 sensor: A machined surface can be analyzed for roughness. The sensor measures roughness from 0.05 to 20 microns.  One light flash is used and the reflected and scattered light is used to calculate roughness.  The results of these measurements and the calculations for scattering, reflection, roughness and temperature are transferred to an analog output 4 ... 20 mA.


Technical Data:
Power: 24 Volts and 50 mA consumption
Materials: Housing = ABS natural   Seal = Sealon PTFE   Screws = stainless steel 301
Roughness formula: see roughness patent
Connection: 9 pole D connector
Work Distance: 5 thou to touching
Resolution: Within 0.1% accuracy in digital steps

User Instructions:  Hook up power to the sensor and choose outputs with P1 and P2


Applications for surface roughness:





Processed Food Products

Fuels and Lubricants

Organic Chemistry


Medical and Biology

Water and Sewage

Mineral and Gems

Inorganic Chemistry

Paint Varnish and Glue

Paper and Cellulose

Rubber Industry


Metal and Glass

Imperfections, spots and shine of a surface

Concentration of bacteria

Shine on leaves and flowers

Smoothness and composition of pills and gels

Chocolate, kernel food and waxing

Not Applicable

Measurement can be taken in crystalline form

Contamination for drugs

Skin damage

Not Applicable

Finishing Process

In Crystalline form

Consistency in powder coats and glues

Paper standards for brightness and gloss factors

Rubber gloss

Quality on plasticized materials

Roughness standard for metal and ceramic