Bubble Pressure Tensiometer BPA-800P
The KSV BPA-800P bubble pressure tensiometer represents the latest development in bubble pressure measuring technology. Many of the key features are patented such as the determination of bubble lifetime characteristics, the optimization of the hydrodynamic system, and the option to reach extremely short as well as sufficiently long measuring times.
Automatic operation and user independence are the key features of the KSV BPA-800P. Portability and battery operation make the instrument ideal for industrial and environmental applications. User friendly external PC software (optional) simplifies data analysis and storage.
Main features
- direct and precise measurement of bubble deadtime and lifetime
- representation of results as a function of measurement time as well as effective adsorption time
- broad available time interval of 4 orders of magnitude
- precise measurement of dynamic surface tension
- direct measurement of hydrostatic pressure
- correction for gravitation and viscosity of the liquid
- sample temperature measurement
- automatic detection of liquid surface on immersion
- automatic insertion of the measuring probes to user defined depth
- portability and battery operation
- external PC connection
| Specifications |
| Surface tension measuring range |
|
10 to 100 mN/m |
| Reproducibility of measured values |
|
+/- 0.1 mN/m |
| Surface tension accuracy |
|
+/- 0.25 mN/m |
| Dynamic time range |
|
10 to 10,000 ms |
| Minimum test liquid volume |
|
1 ml |
| Temperature range |
|
0 to 90°C |
| Experimental time |
|
20 to 35 min (standard mode)
4 to 6 min (fast mode) |
| Voltage |
|
12 VDC (measuring unit)
100-250 VAC, 50-60 Hz (power supply) |
| Power consumption |
|
< 1 W |
| Optional power supplies |
|
- NiMh Battery unit (life time 3 to 5 h)
- Car Cigarette lighter power cable
|
| Internal Flash memory |
|
2 MB (standard) |
| Dimensions |
|
Measuring unit 170 x 110 x 70 mm (W x D x H)
Stative 150 x 180 x 300 mm (W x D x H) |
| Weight (measuring unit) |
|
1 kg |
| Computer interfaces |
|
RS-232 (standard)
Infrared (optional) |
| Max number of measurement points saved in each measurement |
|
30 to 50 depending on the bubble life time |
| Max number of measurements stored in the unit |
|
20,000 (transferrable to an external PC) |
|
