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.
Precision: ± 1% of full scale
- Resolution: 1 For viscosity equal to or above 10.000 cP: 1
- Repeatability: 0.2%
- Thermometer features:
- Temperature margins: 0o C to +100o C 32o F to 212.0 o F
- Resolution: 0.1o C / 0.1722 o F
- Precision: +/- 0.1 o C
- Type of probe: PT100
- Supplied at 100-240 VAC, 50/60 Hz Shipping weight: approx. 8 kg
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Viscosity ranges (mPa•s)
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Spindle models
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TR8
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50 – 170 K
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TR9
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250 – 830 K
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TR10
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500 – 1.7 M
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TR11
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1 K – 3.3 M
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81-PV0118/B
Rotational Viscometer, high performance version. 100-240V/50-60Hz/1ph.
81-PV0118/T
Temperature control unit for rotational viscometer. Temperature range from ambient plus 5°C to 300°C. 220-240V/50-60Hz/1Ph.
81-PV0118/TZ
Temperature control unit for rotational viscometer. Temperature range from ambient plus 5°C to 300°C. 110V/60Hz/1ph
81-PV0118/2
Aluminum disposable test chamber
81-PV0118/3
Stainless steel reusable test chamber
81-PV0118/4
Set of special spindles for APM and thermosphere (TR8, TR9, TR10, TR11) Range: "R": (40 - 400.000) cP, "H": (2 - 32.000) Poise Material: Stainless steel. 316 Suitable for viscometer R yH