... available.In the six-speed models, test speeds of 600, 300, 200, 100, 6 and 3 rpm are available via synchronous ... a 50-Hz motor. Twelve total test speeds let you measure over an extended shear-rate range. Test speeds of 600, 300 ... , 200, 180, 100, 90, 60, 30, 6, 3, 1.8 and 0.9 rpm are available via a synchronous motor ... 3,1.8,0.93016735SA/SR-1212115 Volts 50 HZ600,300,200,180,100,90,60,30,6,3,1.8 ...