Description
Check out the specifics of Theta Flow and compare it to our Theta Flex and Theta Lite to find out what you need. Theta Flow systems come in ready-made packages optimized for your automation level. Other packages can also be formed easily thanks to the modular design.
Theta Flow |
Theta Flex |
Theta Lite |
|
Software and hardware |
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Measuring range (°, mN/m) |
0…180, 0.01…2000 | 0…180, 0.01…2000 | 0…180, 0.01…2000 |
Accuracy (°, mN/m) |
±0.1, ±0.01 | ±0.1, ±0.01 | ±0.1, ±0.01 |
Maximum sample size (mm) |
Unlimited×100×360 (with stage) | Unlimited×100×360 (with stage) | Unlimited×45×200 (with stage) |
Integrated sample holders |
✔ | ✔ | ✔ |
Maximum resolution (px) |
2592 x 2048 (5 MP) | 1936 x 1216 (2.3 MP) | 1936 x 1216 (2.3 MP) |
Maximum measuring speed (fps) |
3422 | 2347 | 2347 |
Camera |
CMOS 1” USB 3.0 digital camera with zoom | CMOS1/2.3″ USB 3.0 digital camera with zoom | CMOS1/2.3″ USB 3.0 digital camera with fixed zoom |
Image focusing |
Software-controlled autofocus, manual fine focus in optics | Manual fine focus in optics | Manual fine focus by optical rail |
Image quality |
Enhanced with DropletPlus technology, Native | Native | Native |
Camera protection |
Inside instrument covers | Inside instrument covers | Inside instrument covers |
Camera view angle (°) |
-4 … 2.5, with digital scale | -4.5 … 2.5, with mechanical scale | -2 … 2 |
Light source and size |
LED based homogeneous background lighting, 62 x 62 mm | LED based homogeneous background lighting, 62 x 62 mm | LED based background lighting, Ø 20 mm |
Field of view (Ø, mm) |
1.35…52.9 | 0.95…26 | 2.3…7.8 |
Measurement indicator LED |
✔ | ✔ | – |
Integrated touch display |
✔ | – | – |
Environment monitoring |
✔ | – | – |
Disposable tip dispensing |
✔ | ✔ | ✔ |
Software |
OneAttension, includes all measurement modes | OneAttension, includes all measurement modes | OneAttension, includes all measurement modes |
Dimensions — Basic frame (L×W×H, mm) |
765 x 230 x 435 | 765 x 230 x 435 | 495 x 130 x 310 |
Weight — Basic frame (kg) |
29 | 26 | 5 |
Power supply (VAC) |
100…240 | 100…240 | 100…240 |
Frequency (Hz) |
50…60 | 50…60 | 50 … 60 |
Available Measurements |
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Static contact angle and captive bubble |
✔ | ✔ | ✔ |
Batch contact angle |
✔ | ✔ | ✔ |
Dynamic contact angle |
✔ | ✔ | ✔ |
Meniscus contact angle |
✔ | ✔ | ✔ |
Surface/Interfacial tension |
✔ | ✔ | ✔ |
3D surface roughness and roughness-corrected contact angle |
✔ | ✔ | – |
Interfacial rheology |
✔ | ✔ | – |
Surface free energy |
Zisman Plot, OWRK/Extended Fowkes, van Oss Acid-Base, Wu, Neumann’s Equation of State, Schultz 1 and 2 | ||


