Apparent viscosity of unfilled asphalt is evaluated by a rotational viscometer which measures the torque generated by a calibrated spindle rotating at a selected speed into a bitumen sample heated at  precise temperature in the range between ambient temperature to 260°C. The measured relative resistance to rotation is converted, by a factor,  in viscosity units, cP or mPa·s. 

Main Features:

Selected speed r.p.m.

Selected spindle SP

Sample temperature °C or F

Density (introduced by the user) g/cm3

Viscosity reading cP (mPa·s) or cSt

Percentage of full scale %

Viscosity reading: dynamic viscosity (cP or mPa·s) or kinematics viscosity (cSt).

Shear Rate (with coaxial spindles) SR (s -1)

Shear Stress (with coaxial spindles) SS (N/m2)

Unit converter SI to CGS.

Program Features:

9 working memories

Time to torque & Time to stop

Customizable speed options

Multistep

Ramp

Temperature reading by PT100.

User-enabled viscosity and temperature calibration.

Auto-Test: automatical internal viscosimeter checking

Auto-Range: full scale range for combination spindle speed.

Technical Specifications:

Resolution: 1 For viscosity equal to or above 10.000 cP: 1

Precision: ± 1% of full scale

Repeatability: 0.2%

Thermometer features:

Resolution: 0.1o C / 0.1722 o F

Precision: +/- 0.1 o C

Temperature margins: 0o C to +100o C 32o F to 212.0 o F

Type of probe: PT100

Supplied at 100-240 VAC, 50/60 Hz

Shipping weight: approx. 8 kg.