Applications
Sigma 700 and 701 are
force tensiometers used for the determination of:
- Surface tension
- Interfacial tension
- Critical micelle concentration
- Powder wettability
- Dynamic contact angles
- Surface free energy
- Absorption
- Cleanliness
- Surface heterogeneity
- Density
Measuring with Sigma 700/701
Sigma 700 and 701 outstanding versatility makes them suitable for research and development, industrial quality control, routine measurements and even educational use. Full computer control and high level of automation make it possible to carry out long measurements without operator intervention during the test, saving time and freeing the user to concentrate on other tasks. Special attention has been paid to the ergonomic and user-friendly design.
Accessory modules for dispensers and temperature or pH control can be easily mounted into the measuring unit. In addition, special probes are available for density, wettability and tensiometry measurements as well as holders for fiber and plate studies. Software modules are independent and can be acquired separately, giving you the flexibility to customize the instrument to your needs. Modules are available for the following measurements: surface and interfacial tension, dynamic contact angle, critical micelle concentration, density, powder wettability and sedimentation. Two dispensers can be used simultaneously for critical micelle concentration (CMC) measurements, allowing a full CMC curve to be obtained in one measurement.
Because of its wide weight range and autocalibrating microbalance, the Sigma 700 is well suited for dynamic contact angle measurements of large and heavy solid and powder samples. Very similar to Sigma 700, Sigma 701 is also a multipurpose tensiometer but equipped with a different microbalance optimized for a different range of applications. Sigma 701 can measure in a much more narrow weight range but with improved sensitivity, optimized for fiber measurements.
Available Measurements
- Static surface tension
- Static interfacial tension
- Density
- Dynamic contact angle
- Surface free energy
- Wettability
- Automatic critical micelle concentration
Balance specifications
| |
Sigma 700
|
Sigma 701
|
Measuring range
|
1...2000 mN/m |
1...1000 mN/m |
Displayed resolution
|
0.001 mN/m |
0.001 mN/m |
Maximum load
|
210 g |
5 g |
Weighing resolution
|
0.01 mg |
0.005 mg |
Force resolution
|
0.1 µN |
0.05 µN |
Contact angle range
|
0...180° |
0...180° |
Contact angle resolution
|
0.01° |
0.01° |
| Calibration & locking |
Automatic |
Manual |
Measuring unit specifications
| |
Sigma 700
|
Sigma 701
|
Sample stage
|
Motorized |
Motorized |
Sample stage speed
|
0.01...500 mm/min |
0.01...500 mm/min |
Stage positioning resolution
|
0.015 mm |
0.015 mm |
Dimensions
|
L33,3 xW 24,4 x H62 cm |
L33,3 xW 24,4 x H62 cm |
Weight
|
16,3 Kg |
13 Kg |
Power supply
|
85...264 VAC |
85...264 VAC |
| Frequency |
47...440 Hz |
47...440 Hz |
Recommended system requirements
2GHz processor, 2GB MB RAM, 100 GB hard disk drive (40GB free), 1280x1024 resolution,1 RS-232 Port
Minimum system requirements
1GHz processor, 512 MB RAM, 40 GB hard disk drive (20GB free), 1024x768 resolution
Operating system requirements
Windows 2000 SP4, Windows XP SP2 (32 bit), Windows Vista Home SP1, Windows Vista Home Premium SP1, Windows Vista Ultimate (32 bit) SP1, Vista Business SP1 (32bit).
More information is available from the product catalogue. Accessories can be found here.
Specifications and appearances are subject to change without prior notice.
Biolin Scientific shall not be liable for any errors on this website.