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DIGITAL VISCOMETER

VISCOMETER are widely used to determine and measure the liquid viscosity in many applications such as grease, painting, pharmacy and adhesives.Abroad range of measurement is now available in a single instrument-the multi-range ACM 52301 digital viscometer.

Superior repeatability and linearity is insured by a design which incorporates a unique combination of a proprietary pivot less mechanism with a torque balance servo system. The power of the viscometerlies in its multi-range capability which enables a five-fold increase in measurement range over conventional models providing unparalleled cost performance and convenience.

SPECIAL FEATURES
WORKING PRINCIPLES
TECHNICAL PARAMATERS

The Digital rotary viscometer is based on single chip micro-processor technologies and used for determining the liquid viscose capacity and the absolute viscosity. Comparing with other similar products, this instrument has the following features:

High measuring accuracy
Stable in measured display
Easy operation and read-out
Excellent in Anti- interference

Light from LED light source is focused on the underside or a prism element. When a liquid sample is applied to the measuring surface of the prism, some of the light is transmitted through the solution and lost, while the remaining light is reflected onto a linear array of photodiodes creating a shadow line. The refractive index is directly related to the position of the shadow line on the photodiodes. Once the position of the shadow line has been automatically determined by the instrument, the internal software will correlate the position to refractive index, or to another unit of measure related to refractive index, and display a digital readout on an LCD or LED scale.

The program-controlled motor rotates at the given velocity controlled by a program and makes the rotary axis of the viscometer to revolve, and through a torque sensor, then drives the standard rotors to rotate, the rotors will subject to a torque moment proportional to liquid viscosity because of the liquid viscose hysteresis. The torque moment will be measured by the sensors and processed into the viscosity and shown on the display. In order to extend the measuring range, 4 rotors with 4 different velocities were used in this instrument.
To work in a wide range of 10mPa·s ~ 100000 mPa·s, the instrument was designed and manufactured with 4 rotors and 4 different velocity for each, which enable it to measure any viscosity value in the given range. On the front control panel, 5 operation keys are used: Up and Down, Left and Right, Return and Confirm. When instrument powered-on, the display showed the rotors and velocities used in the last operation that can be checked by selecting the correlating Up and Down, Left and Right keys. To measure a liquid, first estimate the its viscose range, then select the rotors and velocities by using Up and Down, Left and Right keys, followed by mounting the selected rotors on the instrument, press the Return key to start measuring. The instrument equipped with a data memory to store such operation parameters as the measuring range, rotors and velocities, coefficients and the measured results. The micro controller can adjust the motor rotation velocity based on user’s requirement. With RS232 port on instrument, the data communication between instrument and computer can be made.
The rotor bracket is used for the protection of rotors and the stability of the measurement, a more reliable measuring result can be made by using the protection bracket.

Measurement range: 10mPa·s ~ 100,000 mPa·s;
Rotor types: 1#, 2#, 3# and 4# rotors;
Rotor velocity: 6 rpm, 12 rpm, 30 rpm, and 60 rpm;
Operation modes: Manual and automatic;
Measurement error: ±5% (Newton liquid)
Dimensions: 105 mm X 120 mm X 160 mm (the base not included);
Net weight: 2.5 Kg (the base not included);
Operation conditions

High measuring accuracy;
Stable in measured display;
Easy operation and read-out;
Excellent in Anti- interference

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