Elcometer: The Elcometer 2250 Krebs viscometer measures the viscosity of paints, varnishes, adhesives, pastes and liquid inks. With a fixed spindle speed of 200 rpm, accurate to ±1 percent, it offers users both a fully automatic or manual Krebs viscosity test, displaying the viscosity on screen in a choice of Krebs units, grams or centipoise.