Lepkościomierze wibracyjne SV

Lepkościomierze wibracyjne do precyzyjnych pomiarów lepkości dynamicznej. Zakres 0.3-10000 mPas oraz 1-100000 mPas. Wielkość próbki 10-45 ml. Pomiar temperatury próbki 0-160°C. Wysoka precyzja i powtarzalność. Możliwość wersji mobilnej. Oprogramowanie komputerowe w standardzie. Wiskozymetry wibracyjne z drgającymi widełkami.

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Wiskozymetr wibracyjny z drgającymi widełkami

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Wyświetlacz VFD RS-232C Interfejs Software

Cechy

Pomiar ciągły, w szerokim zakresie, bez wymiany płytek pomiarowych
Jednoczesny pomiar temperatury i lepkości
Oprogramowanie pod Windows WinCT-Viscosity

Przykład pomiaru za pomocą RsVisco

Bardzo szybki pomiar
Wysoka powtarzalność
Pomiar niskich lepkości
Uproszczona procedura kalibracji (SV-10)
Łatwe czyszczenie
Pomiar cieczy nienewtonowskich, pieniących się, płynących, zoli i żeli

Wyjścia i wejścia zewnętrzne

RS-232C interfejs

Akcesoria

Kliknij tutaj i zapoznaj się z pełną listą dodatkowego wyposażenia.

Naczynie na
małą próbkę (10ml)
Szklane naczynie
(ok. 13ml)
Płaszcz wodny Blokada
pozycji

Specyfikacja

Model SV-10 SV-100
Metoda pomiarowa Strojone widełki wibrujące (naturalna częstotliwość 30 Hz)
Jednostka lepkości mPa·s, Pa·s, cP, P Pa·s, P
Zakres lepkości 0.3~10000mPa·s 1~100Pa·s
Powtarzalność 1% odczytu (S.D., 20~30°C, bez kondensacji)
Minimalna wielkość próbki 10ml~ (z dodatkowym naczyniem na małe próbki)
Temperatura pomiaru 0~160C° / 0.1C°(32~320°F/0.1°F)
Wyświetlacz Vacuum Fluorescent Display (VFD)
Zasilanie Zasilacz AC (ok. 14VA)
Wymiary zewnętrzne / Masa Główna jednostka (ze statywem): 332 (S)×314 (G)×536(W) mm / ok. 5.0 kg
Sterownik: 238 (S)×132 (G)×170(W) mm / ok. 1.3 kg
Wyposażenie standardowe Naczynie (45 ml, poliwęglanowe × 4 szt), CD-ROM (WinCT-Viscosity),
Zasilacz AC, Kabel połączeniowy (1.5m), kabel RS-232C (25P-9P)

Szczegóły

SV Series SeriesSine-wave Vibro Viscometer
Viscometery Revolution !
Measument Principle for SV series
The SV series has of 2 thin sensor plates that are driven with electromagnetic force at the same frequency by vibrating at constant sine-wave vibration in reverse phase like a tuning- fork.

The electromagnetic drive controls the vibration of the sensor plates to keep in constant amplitude. The driving electric current, which is exciting force, will be detected as the magnitude of viscidity produced between the sensor plates and the sample fluid.

Sensor Unit
Corrosive-resistant gold-plate sensor plate and temperature sensor.

It is very important to measure the temperature of the fluid correctly because the viscosity is very much dependent upon the temperature of the fluid. SV series can detect accurate temperature immediately because the fluid and the detection unit (sensor plates) with small surface area/thermal capacity reach the thermal equilibrium in only a few seconds.

SV series, Tuning-fork Vibration Method does not cause damage to the sample fluid and allows measurement of cloud point of samples such as surface active agents and of surface/interface changes such as wettability because of its excellent feature for wide measurement range without the need to replace the sensor plates.

Display Unit
You can avoid unnecessary reading errors with easy-to-read, large, clear display: 13mm height for viscosity measurement and 11mm height for temperature measurement.
WinCT-Viscosity
WinCT-Viscosity (RsVisco) is software to import the measurements of viscosity and temperature from SV series to a PC automatically and display the measurement result by graph on real-time basis. The scaling function and the logarithm display is selectable in the function.
Saving the measurement data by “CSV” file and opening it with the WinCT-Viscosity is very easy and convenient for your analysis of your sample fluid viscosity
Water Jacket
Our water jacket (AX-SV-37) (sold separately) used in conjunction with a commercially available constant heat water tank to heat the circulating system, ensures that the sample remains at a constant temperature and that the temperature can be changed for viscosity measurement.

(A small sample container AX-SV-34 and a glass container AX-SV-35 are available, sold separately.)

Oprogramowanie

WinCT-Viscosity
Via RS232C, this software enables A&D’s Sine-wave Vibro Viscometer SV Series to display the progress of measurement in real time on a PC or easily transmit the measured results (data) to save or analyze. The CD-ROM of WinCT-Viscometer is equipped as a standard accessory of Viscometer SV Series.
RsVisco: Graphing software to create graphs of the measured results and the progress of viscosity measurement.

1. Creates the real-time graph of data received from A&D’s Sine-wave Vibro Viscometer SV Series via RS-232C. Progress of change in viscosity during measurement can be monitored in a graph. Temperature data also can be simultaneously displayed, and the graph of temperature and viscosity can be monitored in real time.
2. The following three types of graphs are provided to choose from;
Viscosity (Y axis) – Time (X axis)
Viscosity/Temperature (Y axis) – Time (X axis)
Viscosity (Y axis) – Temperature (X axis)
3. Graphs can be overlaid in repeating measurements. (in 10 colors)
4. Measured data can be saved in a CSV format file.
5. Displayed graph can be printed with a printer via a PC.

Example of Measurement Display Using RsVisco
(1) Example of RsVisco Display
RsVisco is software to read the measured results (CSV file) and create a graph representing the measuring viscosity in real-time as shown in the figures below. Figures 15 and 16 show the graphs representing viscosity changes of silicon oil (Newtonian fluid) measured at room temperature while leaving it cooling down from about 45°C to 25°C. In Figure 15, the graph shows the elapsed time plotted along the x-axis and the viscosity (left) and the temperature (right) plotted along the y-axis. In Figure 16, the same data is represented by plotting the temperature along the x-axis and the viscosity along the y-axis. The linearity of the correlation between the changes in viscosity in response to the changes in temperature is well presented.

(2) Example of Viscosity Measurement of Water-based Paint
Figure 17 shows the graph representing the measured result of a water-based varnish at room temperature under the fixed condition. This sample shows a stable viscosity despite the elapsed time. Figure 18 represents the measured result of a water-based paint (black) at room temperature under the fixed condition.

After starting the measurement, this sample shows a tendency of gradually decreasing (thixotropy). To evaluate the viscosity of a sample as this, for instance, we will find the time when the decreasing tendency becomes slow experimentally. We can evaluate the viscosity value from the time.

(3) Viscosity Measurement of Food
Figures 19 and 20 show the graphs representing the measured results of the viscosity of egg white while heating it with a heater from room temperature to about 80°C. The behavior of egg white rapidly coagulating over 60°C is measured well. The graphs precisely show the properties of protein (albumin), which is the main component (composition) of egg white.

Figures 21 and 22 show the graphs representing the measured results of the viscosity of egg white, shown in Figures 19 and 20, by indicating with logarithmic scale on the y-axes (viscosity). We can observe, especially in Figure 22, that when the temperature was 60°C or lower the viscosity of egg white decreased as the temperature increased, like a common liquid does, but once it surpassed 60�°C, the viscosity increased rapidly as its protein coagulated. The vibro viscometer SV Series can capture precise dynamic changes in viscosity as well as small changes peculiar to a sample (matter).
As you can see below, WinCT-Viscosity (RsVisco) can indicate a logarithmic axis on the viscosity axis so as to clearly present the changes in viscosity of a wide range or of non-linearity.
Figure 23 shows an example of viscosity measurement of 2.5%(green line) and 5%(red line) gelatin solutions while varying the temperatures. The temperature is plotted along the x-axis and the viscosity along y-axis (log). We can observe that the coagulation point depends on the concentration of the solution.
Figure 24 is the graph representing the measured result of custard pudding at approx. 20�°C. Four samples (3 good samples and 1 failure sample) were measured. The upper three lines (red, light blue and light green) are of good samples and the lower line (purple) is of the sample, which was evaluated as a failure. As we can see, the evaluation made based on one’s experience is now possible to present with values by measuring the viscosity with SV-10.
Figure 25 shows the graph representing the measured result of Worcester sauce under the fixed condition (room temperature).
We can see the SV-10 measurement presents that Worcester sauce shows a stable viscosity in response to the elapsed time.

Dodatkowe informacje

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