Krebs Stormer Viscometer / Viscosity Meter PCE-RVI 5

Order no.: PCE-RVI 5
£ 2,003.00
£ 2,403.60
price ex. (VAT / delivery)
Delivery time: Temporarily Unavailable

PCE-RVI 5 Krebs Stormer Viscometer / Viscosity Meter
Stormer-type viscometer to measure Krebs Unit (KU) viscosity automatically or manually

PCE-RVI 5 is a Krebs viscometer or Stormer viscometer used in industrial and research applications to measure Krebs Unit viscosity according to the ASTM D562, ASTM D1131 and ASTM D856 standards. Featuring a unique automatic test mode for reliable, consistently repeatable and reproducible test results, this Krebs Stormer viscometer displays measurements in Krebs Units (KU), grams (g) and centipoise (cP).

Automatic mode
Place the beaker on a stand on the base and press start. The Krebs spindle will lower to the correct position automatically. The viscometer will run a fully automated test using shear rate to measure the viscosity of the fluid in the beaker, and the LCD digital display will show the test results. Upon completion of the test, the Krebs spindle will return to the start position to allow the beaker to be removed.

Manual mode
Manual operation is recommended when testing the viscosity of abnormally sized samples.

Used in the testing, development, manufacture and quality control of paints, coatings, lacquers, varnishes, adhesives, pastes and liquid inks, this Krebs viscometer:

- Includes a bright, easy-to-read LCD digital display
- Offers an integrated RS-232 interface or communications port for sending results to a printer
- Allows viscosity measurements to be performed automatically or manually
- Provides an adjustable running time from 5 to 99 seconds (when automated)
- Maintains a constant speed of 200 revolutions per minute (rpm)

Technical specifications

Rotational speed

200 rpm

Torque range

Viscosity range

Rotational viscometer (RV) 

Krebs Units (KU)

40.2 … 141.0 KU

Grams (g) 32 … 1,099 g
Centipoise (cP) 27 … 5,274 cP (= mPa.s)




Krebs Units (KU)

0.1 KU

Grams (g) 1.0 g
Centipoise (cP) 5 cP


General specifications


Accuracy ± 1% full scale (FS)
Repeatability ± 0.5% FS
Power supply 100 ... 240 V / 50 ... 60 Hz
Operating conditions +10 ... +40 ° C / +50 … 104 ° F
Approx. dimensions 325 x 190 x 500 mm / 12.8 x 7.5 x 19.7 in
Approx. weight 8.5 kg / 18.8 lbs
Protection class IP 20
Standards ASTM D562, ASTM D1131, ASTM D856
See user manual for complete technical specifications. Note: Please ensure the included 600 ml beaker is filled with 450 ml of liquid to ensure accurate measurement.

1 x PCE-RVI 5 viscometer / viscosity meter with base
1 x Krebs spindle
1 x 600 ml beaker
2 x Adapter stands
1 x Power cable
1 x Manufacturer calibration certificate
1 x User manual