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The continuous-flow process viscometer KV100-25 works on the principle of a Capillary |
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Viscometer with continual volume flow and measurement of pressure decrease over the
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measuring capillary.
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Its basic components are the driving head and the flow measuring device connected by a |
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spacer tube. The driving head holds a synchronous motor with change gear. The |
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immersion-type measuring unit holds a gear pump, the intake fitting and the exchangeable |
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measuring capillary, as well as ducts for the supply of the process pressure and for the |
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transport of overpressure from the entrance of the measuring capillary to the connections |
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of pressure transducers.
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The gear pump, which is driven by the driving head through a shaft via magnetic coupling |
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at constant speed, continually takes a constant volume flow from the process medium and |
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feeds it through the measuring capillary as a steady flow.
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The pressure decrease between the two ends of the measuring capillary, which is |
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proportional to viscosity, is investigated by a differential pressure transducer. Pressure |
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differences are transformed into standard electrical signals 4...20 mA, which can be used |
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for display and as a control signal.
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Screwed to the measuring device is a flow cell, which encloses the aspiration tube, |
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measuring capillary and pump housing. So these parts are directly in the process medium |
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positioned and temperature-controlled by this.
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The flow measuring device is designed for use in the main or the secondary flow with low |
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operating pressures. The inlet of the aspiration tube is always located within the |
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representative substance flow.
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The process viscometer can be completed with an electronics unit for more functions of |
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instrument control, signal processing, correction of characteristic lines of the gear pump, |
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as well as for the temperature adjustment of viscosity. |
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Recommended Applications |
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The process viscometer KV100-25-DM25 is suited for continual viscosity measurement and monitoring in a wide variety of liquid substances, such as |
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lubricating oil |
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polymer solutions |
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fuel oil |
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emulsions |
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fat melts |
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suspensions |
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printing inks |
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liquid detergents |
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latex |
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adhesives |
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lacquers |
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glues |
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The rheology consultants of RheoTec will be pleased to help you analysing your specific application problem, and, based on their profound rheological knowledge, they will find exactly the equipment configuration you need to solve it. |
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Technical data
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| viscosity ranges |
0 to 3 mPas
0 to 10 mPas
0 to 30 mPas
0 to 50 mPas
0 to 100 mPas
0 to 500 mPas |
| accuracy |
± 1 % of maximum value |
| pressure range |
0 to 2.5 Mpa |
| temperature range |
-25 °C to +140 °C |
| materials with direct fluid contact |
1.4571 according to DIN 17440 |
| degree of protection |
IP54 |
| climatic classification |
-25/55/30/90//42 (S0 2 )1-3 |
| installation position |
any |
| power supply |
motor:
230 V AC (+6% / -10% // 50 or 60 Hz)
pressure difference transducer:
24 V DC (+10% / -20% // 20 mA) |
| data processing |
pressure difference transducer
(Δp max. 0.05 MPa) |
| output signal |
4 to 20 mA |
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Optional Accessories
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1. Continuous-flow cells for installation in main or secondary flow (bypass) |
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flow cell DMK (stainless steel) for pipeline installation (DN25...100, PN06/PN25) |
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flow cells DM06-K (synthetics) and DM25-E (stainless steel) for flexible tubes or small pipe diameters |
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| flow cell DMK |
flow cell DM06 |
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2. Temperature sensor Pt100 |
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optional delivered with transducer |
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3 temperature ranges -30°C to +60°C, 0°C to +100°C, 0°C to +200°C |
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3. Control unit KS98 |
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provides supply voltage 24 V DC for differential pressure transducer |
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shows data on display (viscosity, temperature, min./max. viscosity, compensated viscosity) |
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temperature correction of viscosity data according to specified viscosity-temperature equation via large temperature range |
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| power supply: |
90 to 250 V AC / 48 to 62 Hz |
| protection: |
according to DIN VDE 0470 / EN 60529 |
| device panel: |
IP65 |
| housing: |
IP20 |
| connections: |
IP00 |
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Control Unit KS98 |
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위 사진을 클릭하시면 크게 보실 수 있습니다
