Force Tensiometer

Sigma 700/701

State of the art force tensiometers with outstanding versatility and high level of automation.

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Measurements

Dynamic contact angle For advancing and receding angles
Surface and interfacial tension measurements Surface tension/interfacial tension with Du Noüy ring, Wilhelmy plate or rod
Powder wettability Powder wettability by the Washburn method Sigma 700 is recommended for this measurement.
Density For liquid and solid density measurements
Sedimentation For sedimentation kinetics
Adhesion Force For adhesion studies
CMC CMC for critical micelle concentration measurement Requires additional dispensers

Two balance options

Sigma 700

For higher load and automated calibration

Sigma 701

For superior balance resolution

Key features

Fully Automated

Measurements with one click
Multiple probe options

To cover all your measurement needs
High precision sample stage

For full control of the measurement

All-inclusive system

Software made with you in Mind

Experience the seamless combination of intuitive interface and powerful functionality with OneAttension. It provides live analysis, complete automation, and flexible measurement settings. Simplifying analysis with straightforward data management and industrial-grade reporting.

Applications

Chemicals
Coatings
Food & beverages
Batteries
Biotechnology & medical devices
Pharmaceutical
Paper & board
Environment
Oil & gas
Electronics

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A closer look

Dive into the specifics of Sigma 700/701 and compare them to each other to make a smart decision on what you need. Sigma 700 and 701 have full support of all measurement modes, making them adaptable to all measurements and applications. However, they are also optimized for different experiments. Sigma 700 is the optimal choice especially for powder wettability and contact angle experiments. Sigma 701 is a great choice for surface tension and interfacial tension experiments due to its very high sensitivity.

	Sigma 700	Sigma 701	Sigma 702	Sigma 702 ET	Sigma 703 D
Available Measurements
Surface tension	√	√	√	√	√
Interfacial tension	√	√	√	√	√
Critical Micelle Concentration	Automatic	Automatic	Manual	Manual	Manual
Dynamic contact angle	√	√	_	_	_
Surface free energy	√	√	_	_	_
Powder wettability	√	√	_	_	_
Density	√	√	√	√	√
Sedimentation	√	√	_	_	_
Balance Specifications
Measuring range (mN/m)	1…2000	1…2000	1…1000	1…1000	1…1000
Displayed resolution (mN/m)	0.001	0.001	0.01	0.01	0.01
Density range (g/cm3)	0…2.2	0…2.2	0…2.2	0…2.2	0…2.2
Density resolution (g/cm3)	0.0001	0.0001	0.0001	0.0001	0.0001
Maximum load (g)	210	5	5	5	5
Weighing resolution (mg)	0.01	0.005	0.01	0.01	0.01
Force resolution (µN)	0.1	0.05	0.1	0.1	0.1
Contact angle range (°)	0…180	0…180	–	–	–
Contact angle resolution (°)	0.01	0.01	–	–	–
Calibration & Locking	Automatic	Manual	Manual	Manual	Manual
Measuring Unit Specifications
Sample stage	Motorized	Motorized	Motorized	Motorized	Manual
Sample stage speed (mm/min)	0.01…500	0.01…500	0.01…500	0.01…500	–
Stage positioning resolution (µm)	0.016	0.016	0.26	0.26	–
Dimensions (L×W×H, cm)	33.3×24.4×62	33.3×24.4×62	33.3×24.4×62	33.3×24.4×62	27.5×15.5×39.
Weight (kg)	16.3	13	10.7	10.7	4.9
Power supply (VAC)	85…264	85…264	85…264	85…264	100…240
Power consumption (W)	13	13	13	13	7
Frequency (Hz)	47…440	47…440	47…440	47…440	50…60
Common Accessories
Temperature control range (° C)	-20…+200	-20…+200	-20…+200	-20…+200	-20…+200
Stirrer	√	√	–	–	–
Software
Provided software	OneAttension	OneAttension	Data receiver	Data receiver	Data receiver
System Requirements
Recommended system requirements	1 GHz processor 1 GB RAM 40 GB hard disk drive (20 GB free) 1 USB-port Accessories such as water bath and liquid dispenser may require a free USB port
Operating system requirements	Windows 7 & 8 &10 (32 or 64 bit) Windows Vista (32 bit)

OneAttension Software

We made our software for Sigma 700/701 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!

OneAttension Features

Best in class interface
The software is easy to learn, and the logical interface allows even complex measurements to be performed with ease
Live analysis
The results are shown real-time during the measurement. You can conveniently monitor your results without the need to switch between measurement and analysis tabs
Full automation
OneAttension supports fully automatic measurements.
Powerful recipe manager makes measurement setting
convenient and simple
Flexibility for every need
OneAttension has been designed to meet the requirements of almost any applications you may have. You can easily adjust measurement parameters to match your specific application needs
Data handling and exporting made simple
Data analysis, plotting, and statistical analysis can all be done with a few clicks to give you accurate results within seconds. All data can easily be exported further to Excel, for example
Optimal for industrial use
Measurement reports can be created with a few clicks and the user manager conveniently handles all different users – with desired privacy levels.

Add more possibilities

What extras do you need in your research? Here are a few of our most common accessories and modules. See them all below.

Platinum Du Nouy ring

Pt-Ir-ring made to fulfill the requirements at least in following standards; ISO 301, ISO 4311, ISO 6889, ASTM D1331 and ASTM D 971. Includes also additional weight for push-mode.

Platinum Wilhelmy plate

Platinum Wilhelmy plate with micro roughened surface.

Powder wettability measuring device, steel, Sigma 700 only

Sample vessel to hold the sample powder, only for Sigma 700. Perforated bottom to support filter paper and to allow liquid penetration into bulk powder, porous solids or fiber bundles. Adjustable packing piston for reproducible packing. Used in measurement of sorption behaviour. Includes one package of filter paper (T112B).

Thermostatic vessel (from -20 to +200°C)

For temperature control of the sample liquid. A heat exchange vessel with fluid jacket type of construction. Heating/cooling of the fluid jacket requires external bath/circulator, not included in T705A. Fits glass sample vessel 70 mm in diameter (T104).

Dispenser, Schott Titronic 20ml

A computer controlled and software operated dispenser for automatic measurements of CMC. Two T101 dispenser are highly recommended for a fully automatic dilution measurement but the measurement can also be performed using only one dispenser by concentrating sample liquid. USB interface to PC.

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What others say

Our instruments are present at many prestigious universities and research facilities world wide. Take a minute to find out what others say about Sigma instruments.

citat8

Researcher at Riken

"We wanted the most accurate force tensiometer on the market for our research on surface tension. Our in-depth testing of the Attension force tensiometer convinced us: it is the one."

Riken, Japan

Riken is a Japanese research institute established in 1917. Its research areas include physics, chemistry, biology, medical science, engineering and computational science.

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