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Viscometer

B-type viscometer (spindle)

RB-85 type viscometer

A digital viscometer with an auto-lock mechanism that protects the pivot shaft.
When the measurement is completed, the rotor shaft is automatically locked, so you can measure with confidence.

Features

  • Auto lock mechanism
  • Preheat / auto stop function
  • Power interlock mechanism
  • Data output

catalog

Operating principle


The rotation of the motor is transmitted to the rotor via the spiral spring, and the viscous torque acts on the rotor rotating in the measurement liquid.
The spiral spring rotates in a twisted state by an angle proportional to the magnitude of this viscous torque, and the torsional angle of the spiral spring is the same as the torsional angle between the two slit discs connected to both ends of the spiral spring.
The photo sensor provided for each slit disk reads this twist angle and displays it in terms of viscosity.

Measurement range

Model Range Measurement range
RB85L
RB85H
RB85R
RB85U
RB85S
67.37 μN・m
718.7 μN・m
1437.4 μN・m
5749.6 μN・m
2156.1 μN・m
15  ~  2,000,000 mPa・s
100 ~  8,000,000 mPa・s
100 ~ 16,000,000 mPa・s
400 ~ 64,000,000 mPa・s
150 ~ 24,000,000 mPa・s