Optical Tensiometer

Theta High Pressure

Convenient and versatile contact angle meter for measuring at high pressures and high temperatures.

What you can measure

Static contact angle
Sessile drop and captive bubble
Dynamic contact angle
Dynamic contact angle, advancing and receding contact angle and contact angle hysteresis
Surface free energy
Sessile drop and captive bubble
Surface- and interfacial tension
Pendant drop and reverse pendant drop methods

A quick view

This 2-minute video provides you with the basics of measuring under high pressures and high temperatures with Theta High Pressure. Watch it in fullscreen for the best experience!

3 reasons to invest

Optimal for surfactants and brine

With the integrated piston you can increase the pressure without adding more fluid. This allows you to to keep the surfactant concentration constant and corrosive fluids are restricted to the chamber only.

Easy to use

Theta High Pressure has plenty of smart solutions simplifying your work. The sample port enables direct introduction of your sample with a syringe and direct cleaning of the same sample line without passing through a pump. With our optional automatic pump the pressure can be changed with just one click.

Intuitive software

Highly intuitive with high functionality. The OneAttension software facilitates your experiments and provide instant results. The software features live analysis and automatic measurements.

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OneAttension Software

We made our software for Theta High Pressure with you in mind. It is a fine combination of a very intuitive interface and high functionality. Follow your experiment live, and get the results within seconds. OneAttension is analyzing made easy. Let's have a look at the features!

Base unit	Theta Flow	Theta Flex
Available Measurements
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
Software and hardware
Measuring range (°, mN/m)	0…180, 0.01…2000	0…180, 0.01…2000
Accuracy (°, mN/m)	±0.1, ±0.01	±0.1, ±0.01
Maximum sample size (mm)	Unlimited×100×320	Unlimited×100×320 (with stage)
Integrated sample holders	√	√
Maximum resolution (px)	2592 x 2048 (5 MP)	1984 × 1264 (2.3 MP)
Maximum measuring speed (fps)	3422	3009
Camera	CMOS 1'' USB 3.0 digital camera with zoom	CMOS 2/3'' USB 3.0 digital camera with zoom
Image focusing	Software-controlled autofocus, manual fine focus in optics	Manual fine focus in optics
Image quality	Enhanced with DropletPlus technology, native	Native
Camera protection	Inside instrument covers	Inside instrument covers
Camera view angle (°)	-4.5 ... 2.5, with digital scale	-4.5 ... 2.5, with mechanical scale
Light source and size	LED based homogeneous background lighting, 62 x 62 mm	LED based background lighting, 62 x 62 mm
Field of view (Ø, mm)	1.44…45.3	1.44…32.3
Measurement indicator LED	√	√
Integrated touch display	√	-
Environment monitoring	√	-
Disposable tip dispensing	√	√
Software	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
Weight — Basic frame (kg)	29	26
Power supply (VAC)	100...240	100...240
Frequency (Hz)	50...60	50...60

	HPC1 Manual measurements of liquids	HPC1-Auto Automated measurements of liquids	HPC2-Auto Automated measurements of liquids and gases
Base unit	Theta Flex	Theta Flow	Theta Flow
Included high pressure pumps	2 manual pumps	2 automated HPLC pumps	1 automated syringe pump 1 automated HPLC pump
Temperature range	ambient...200C	ambient...200C	1...200C
Measurement types	Surface tension, interfacial tension, contact angle, surface free energy
Maximum pressure	400 bar
Chamber volume	85ml (without piston), 40-62ml (with piston)
Pressure control options	Pressure increase by piston or by adding more liquid/gas with pump
Sample introduction and flushing	Through integrated 6-port valve
Max solid sample size	20 mm x 20 mm x 8 mm (xyz)
Dimensions	74 cm x 25 cm x 61 cm (L x W x H) for base unit and chamber
Weight	35-38 kg (base unit and chamber)
Power supply	100 - 240 V AC
Frequency	50 - 60 Hz

OneAttension Software

OneAttension-for-Theta-High-Pressure

OneAttension Features

User friendly interface
To get you going in no time
Automatic baseline detection and drop shape fitting
Less user dependency
Pressure stored in software
Revisit your results and the experimental conditions
Full temperature control
Automatic control between 1... 200 degrees C with optional heating
Live analysis
Instant results ready during the measurements
Volume from image
Droplet volume is detected from the drop shape
Autofocus keeps the picture sharp
Less user-dependency, more accuracy
Optimized image quality
Ultra-high resolution image optimized for reliable results

Accessories and Modules

Added extras give you more possibilities and opportunities in your research. Have a look at what you can complement Theta High Pressure with. You can find the full range of accessories below.

Resistor temperature control for HPC

Resistor temperature control for T317. Temperature range: ambient…200 °C.

Peltier temperature control for HPC

Peltier temperature control for T317. Temperature range: 1…70 °C. Includes Peltier element and T102USB (Julabo).

Automatic liquid pump for HPC

Automatic Shimadzu liquid pump for pressurizing the chamber or creating a droplet of liquid.

Automatic liquid and gas pump for HPC

Automatic ISCO pump for pressurizing the chamber with liquids or gasses.

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What others say

Our instruments are present at many prestigious universities and research facilities worldwide. Take a minute to find out what others say about Theta High Pressure.

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Dr Nassar Group for Nanotechnology Research, Department of Chemical and Petroleum Engineering, University of Calgary

"We are studying the role of naturally-derived nanoparticles in oil and gas application. We use nanoparticles to study foam stability, IFT reduction and wettability studies as well as dilatational interfacial rheological studies."

University of Calgary, Canada

"We are utilizing the Attension Theta High Pressure mostly for the IFT and wettability measurements and the PD200 system for the dilatational interfacial rheological measurements. We are satisfied with the performance of all the instruments from Biolin Scientific. The instruments are user friendly and easy to maintain. We are also contented with the after-sales service."

Read more in this Case study

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Jin Haichuan, Beihang University

"We are satisfied with the performance the system and it's also easy to clean the chamber and maintain the system. We are also very satisfied with the after-sales service."

Beihang University, China

Beihang University is a major public research university located in Beijing, China. The university emphasizes in engineering, technology, and the hard sciences. Beihang University is using the Theta High Pressure system in their research.

Learn more

We have gathered all our in-depth knowledge associated with Theta High Pressure. Browse around amongst webinars, case studies and white papers to find a topic of your interest.