UK based Dyne Testing offer Sigma 702 and 702ET, standalone force tensiometers offering high resolution and precision. Direct measurements allow determination of a number of material and surface properties, such as dynamic contact angle, surface free energy, critical micelle concentration, wettability, surface and interfacial tension measurements.
The Sigma 702ET Transformer Oil Analyzer has been specifically designed to guide the user through the measurement of interfacial tension of transformer oil according to relevant standards.
Applications
Sigma 702 and 702ET are force tensiometers for determination of:
- Surface tension
- Interfacial tension
- Critical micelle concentration
- Absorption
- Density
Measuring with Sigma 702/702ET
Results are displayed on a large integrated digital screen. Open design and convenient control keyboard operations make Sigma 702 and 702ET extremely easy to use instruments. Sigma 702 enables precise temperature control thanks to an integrated water-jacket vessel holder, mounted on a motorized sample stage. Sigma 702ET is also equipped with a motorized sample stage, but without water jacket vessel order. Sigma 702ET is specifically designed for oil-water interfacial tension measurements in line with ASTM and IEC standards. A software designed for oil-water measurements is provided with the Sigma 702ET. Sigma 702ET can also be connected to an external PC for additional data storage and simple reporting. The data collection software is provided with the instrument.
Both instruments are standalone offering high resolution and precision for surface and interfacial tension measurements, as well as non-automatic CMC determination. Sigma 702 The open design and convenient control keyboard operations makes the Sigma 702 extremely easy to use. Results are displayed on a large integrated digital screen. Comes with data collection software and can be connected to an external computer for additional data storage and simple reporting. Allows precise temperature control via its integrated water-jacket vessel holder which is directly mounted on the motorised sample stage. Sigma 702ET The open design and convenient control keyboard operations makes the Sigma 702ET extremely easy to use. Results are displayed on a large integrated digital screen. The instrument comes with data collection software and can be connected to an external computer for additional data storage and simple reporting. For further information on both products please refer to the Downloads tab. Recommended system requirements 1GHz processor, 1GB MB RAM, 40 GB hard disk drive (20GB free), 1 USB port. Accessories such as water bath and liquid dispenser may require a free RS-232 port. Operating system requirements Windows 7 & 8 (32 or 64 bit), Windows Vista (32 bit), Windows XP SP3 (32 bit). 702ET Tensiometer, 240VAC, 50 Hz Including: For accessory details please refer to the list below or contact our Sales Team for assistance. For a detailed list of accessories please refer to the attachment
Sigma 702
Sigma 702ET
Available Measurements
Surface tension
Yes
Yes
Interfacial tension
Yes
Yes
Critical micelle concentration
Manual
Manual
Dynamic contact angle
No
No
Surface free energy
No
No
Powder wettability
No
No
Density
Yes
Yes
Technical Specifications
Measuring range (mN/m)
1…1000
1…1000
Displayed resolution (mN/m)
0.01
0.01
Density range (g/cm³)
0…2.2
0…2.2
Maximum load (g)
5
5
Weighing resolution (mg)
0.01
0.01
Contact angle range
–
–
Contact angle resolution
–
–
Calibration & locking
Manual
Manual
Sample state
Motorised
Motorised
Temperature range (°C)
-10…+100
-10…+100
Order Code
Description
40-Sigma 702
702 Tensiometer, 240VAC, 50 Hz Including:
o Super sensitive microbalance
o Built-in large graphic LCD display
o Motorised sample stage
o Manual calibration and locking
o Embedded software to measure Surface Tension & Interfacial Tension
40-Sigma 702ET
o Super sensitive micro balance
o Built-in large graphic LCD display
o Motorised sample stage
o Manual calibration and locking
o Embedded software to measure the density and oil-water interfacial tension of transformer oils according to the ASTM-D971 and IEC 62961 standards.
Order Code
Description
Environment and Sample Control: Temperature & Cabinet
40-T705ET
Thermostatic vessel (from -10 to +100°C)
40-T115
Gas phase temperature controller
40-T102MC
Bath/circulator, Julabo F12-MC
40-T102ME
Bath/circulator, Julabo F12-ME
40-T102ME
Temperature probe for the Julabo bath circulator F25ME
40-T102ED
Bath/circulator, Julabo F12-ED
40-T202
Digital thermometer
40-T140CAB
Cabinet
Density
40-T113
Density measuring device
Probes & Calibration
40-T106
Platinum Du Nouy ring
40-T106A
Certificate for Du Nouy ring dimensions
40-T106B
MIKES calibration certificate for Du Nouy ring
40-T107
Wilhelmy Plate, platinum plate with micro roughened surface
40-T107A
Certificate for Wilhelmy plate dimensions
40-T107C
MIKES calibration certificate for the Wilhelmy plate
40-T117B
Certified calibration kit
40-T120
Calibration weight
40-T108
Ring re-form tool
Consumables
40-T104
Sample vessel, diameter 70mm, 5 pcs/box
40-T105
Sample vessel, diameter 50mm, 5 pcs/box
PC & Software
40-T130
Computer with pre-installed software
40-T702PR
Printer
Maintenance & Services
40-STUP-EU
Start up & training
40-SERV2
Service contract level 2
40-SERV 3
Extended warranty
