• cone/plate geometry generates defined shear rates
• indicates absolute viscosity in centipoise (mPa•s)
• small sample volume (0.5 to 2ml)
• sample temperature precisely measured and controlled
• wide selection of shear rates

The Wells-Brookfield Cone/Plate Viscometer is a precise torque meter which is driven at discrete rotational speeds. The torque measuring system, which consists of a calibrated beryllium-copper spring connecting the drive mechanism to a rotating cone, senses the resistance to rotation caused by the presence of sample fluid between the cone and a stationary flat plate.

The resistance to the rotation of the cone produces a torque that is proportional to the shear stress in the fluid. The amount of torque is indicated either on a dial or digital display, depending on model. This reading is easily converted to absolute centipoise units (mPa.s) from precalculated range charts. Alternatively, viscosity can be calculated from the known geometric constants of the cone, the rate of rotation, and the stress related torque.

Electronic Gap Setting Technology allows fast set-up time and minimizes the possibility of "gap" adjustment errors. A bright LED lights up when a "hit point" is achieved. A simple turn of the micrometer adjustment ring and the "gap" is set, reducing the time required associated with manual detection methods. The Electronic Gap Setting Technology is a standard feature on all of the Wells-Brookfield Cone/Plate Digital Viscometers/Rheometers.

The stationary plate forms the bottom of a sample cup which can be removed, filled with .5 mL to 2.0 mL of sample fluid (depending on cone in use), and remounted without disturbing the calibration. The sample cup is jacketed and has fittings for connection to a constant temperature circulating bath.

The system is accurate to within ±1.0% of the viscosity range. Repeatability is to within ±0.2%. Working temperature range is from 0°C to 100°C.

Embedded Temperature Probe can be installed in sample cup for precise temperature measurement. REQUIRES TECHNICAL ASSISTANCE AS TO SPECIFIC APPLICATION.

Purge Fittings can be installed to maintain a controlled atmosphere in the sample cup. Luer Fittings can be installed to allow sample material to be introduced without having to remove sample cup.

Luer Fittings can be installed to allow sample material to be introduced without having to remove the sample cup.

Embedded Temperature Probe in cup for Cone/Plate Viscometer provides accurate temperature measurement of sample during test. Also shown are standard hose connections to constant temperature circulating fluid bath.