Measured value |
|
Dynamic surface tension, Fainerman-method |
Measuring methods |
|
Constant flow, phased flow changes |
- Resolution |
mN/m |
0.1 |
Measuring range of surface tension |
mN/m |
10 to 100 |
Dynamic range |
ms |
1 to 2000 |
Monitoring mode "constant flow" |
min. |
1 to 60 and more |
Temperature range (sample) |
°C |
5 to 85 |
Temperature measurement |
|
Digital (optional) |
- Resolution |
°C |
0.1 |
- Precision |
°C |
±0.5 |
Display |
mm |
320 x 240 graphic display, 11 x 40 characters |
Display modes |
|
Tabular, graphic, surface tension as a function of the surface age (t, Log t) |
Selection of measuring mode |
|
Menu-controlled |
Parameter input |
|
Menu-controlled |
Sample description |
|
Numerical |
Measuring point distance mode "constant flow" |
min. |
Selectable |
Measurement value |
|
Max. 50 results with date and time |
Duration of experiment |
min. |
3 to 20 (depending on the measuring point of density) |
Interfaces |
|
RS 232 |
Documentation |
|
Printer, PC (optional) |
Data transmission software |
|
For PC running WINDOWS 98 and higher (optional) |
Weight |
kg |
Approx. 7.0 |
Dimensions (WxDxH) |
mm |
280x250x280 |
Power supply |
V |
90 to 264 |
Output of the measured values is optional via a printer or a data transmission software on the PC via the RS 232-interface. The measurement and the documentation of the temperature in the sample can also be carried out by means of an optional digital temperature probe. In addition to the proven PVDF-coated glass capillaries, steel capillaries (such as for highly alkaline samples) are available.
Standard accessories
- Two glass capillaries
- Set of beakers to take samples
- Humidifier
Further accessories
- Digital temperature probe for
measuring in the sample
- Data transmission software for PC
under WINDOWS (optional)
- Double-walled thermostating vessel
- Diverse types of capillary
- Protocol printer
- Membrane pump for capillary rinsing
- Online flow cell
Measuring standards
- ASTM D 3825
