Hand-held Tensiometer for Process Monitoring and Quality Control

MEASURING THE SURFACE TENSION -
CONTROLLING THE SURFACTANT CONCENTRATION

The mobile hand-held Tensiometer measures the surface tension as well as the surfactant concentration easily and quickly in the laboratory and at the production line. It directly shows the measuring results on a comfortable display and alerts the user if defined limit values are exceeded.

PRECISE
Display of surfactant concentration within defined limits

Comparability of measuring values with all SITA lab and process measuring devices

Adjustable high dynamic bubble lifetime range: 15 ms…20.000 ms

ROBUST
Patented and optimized capillary for process use

Robust device housing for atline measurement

Comfortable suitcase for transport and device storage, also useful as working surface

FLEXIBLE
Intuitive operation: simple and fast measuring as well as controlling

Mobile hand-held tensiometer: no PC or notebook required

25 measuring profiles for bath control, process documentation and more

SITA DynoTester+ brochure

Application fields

The DynoTester+ is especially used in following applications:

-	Controlling the surfactant concentration in industrial parts cleaning industry
-	Monitoring the surfactant concentration in electroplating baths
-	Measuring the surface tension of liquids at the plant (atline) or in the laboratory (offline)
-	Quality control of inkjet inks, paints and lacquers/varnishes
-	Incoming and outgoing inspections of surfactant containing goods
-	Mobile use for external work

For your security our application engineers advise you, if the DynoTester+ is suitable for your application. Furthermore, we test your samples and develop an appropriate controlling procedure according to your processes.

Result: The DynoTester+ optimally supports you in quality control and process monitoring.

Here you can find further application examples [..]

Measuring principle

Like all SITA Tensiometer, the DynoTester+ is based on the bubble pressure method for measuring the dynamic surface tension of liquids.

The principle of the bubble pressure method is, that an air stream is lead through a capillary into the process liquid. A sensor measures the pressure which is needed to generate a bubble. (more...).

Technical data

Surface tension
Measuring range	10…100 mN/m (dyn/cm)
Resolution	0.1 mN/m (dyn/cm)
Bubble lifetime
Adjustable range	15…20,000 ms
Resolution	1 ms
Sample temperature
Measuring range	0…100 °C
Resolution	0.1 K
Power Supply
Mains adapter	100...240 V 47...63 Hz
Battery (Lion, integrated)	3.6 V / 1,950 mAh min. 10 h operating hours
Power consumption	2 W max.
Interface, Storage, Dimensions, Weight
USB interface	data transfer, battery charging
Display	124 x 168 pixel, illuminated
Storage	25 values/profile
Dimensions (WxHxD)	75 x 168 x 35 in mm
Weight of instrument	230 g

Windows-Software

The Windows-Software SITA-ProcessLog allows an easy control of all functions of the tensiometer with the PC as well as a comfortable management of the saved measuring data.

•	Management and graphical analysis of saved measuring data
•	Documentation and evaluation of the process and products‘ characteristics
•	Simple and easy preparation of measuring reports
•	Controlling the measurement via PC in the laboratory
•	Simple generation of concentration curves based on defined samples

For more information click here [..].

Accessories

• 

• 

Capillaries

Type I PEEK - easy manual cleaning for paints 

and varnishes

Type II PEEK - for monitoring process liquids

Type III Glass - for agressive liquids

Disposal capillaries PTFE - for special cases

Heating plate with magnetic stirrer

and stand for SITA DynoTester+

Double walled glass vessel

for use with thermal liquid circulator (thermostat) including special cover and insulation

Sample vessels 50 ml

1 set = 10 pcs.

Acid protection kit

Borosilicate glass protection for temperature probe, glass cover, PE jacket for sensor head or device

Mini sample vessels - 2 ml

Power supply

EURO-plug, UK-plug, US-plug

Scope of delivery

- Measuring device DynoTester+

- Robust suitcase

- 2 Capillaries PEEK

- Power supply

- USB-cable

- Stand

- Instrument fastener

- 2 sample vessels 50 ml

- Operating instruction

- Calibration certificate

SITA pro line t15

Flexible and compact all-round Tensiometer for analysis and optimization

Single-Mode
Quick control of surfactant concentration
Quick and reliable for control tasks. The device displays a single measuring value at pre-determined parameters.

Auto-Mode
Optimal support for process analysis
Optimal for the analysis of processes and chemicals. Characterization of the wetting behavior of surface active agents.

Online-Mode
Easy process monitoring
Continuous monitoring of manufacturing processes. Automatic measurement of temperature dependencies.

SITA pro line t15 brochure

Product description

Surface tension measurement – quick and flexible

The SITA pro line t15 is an all-round talent among bubble pressure tensiometers. The measuring device has a comprehensive bubble lifetime range from 15 ms to 20 s for measuring the dynamic surface tension. It automatically adjusts the chosen bubble exactly without a drift or time-consuming readjusting by the operator.

The Auto-Mode analyzes the dynamic behavior of the surface tension of surfactant containing liquids. Wetting characteristics of surface active liquids can be analyzed and the optimal bubble lifetime for the concentration control can be easily determined by the operator.
The Single-Mode carries out a quick measurement of a single surface tension value at a pre-determined bubble lifetime for a reliable control of the surfactant concentration of process liquids
The Online-Mode is used for a continuous monitoring of process liquids and for determining the temperature dependency of the surface tension of liquids.
The measuring data can be saved in the Tensiometer SITA pro line t15, transferred to a computer or printed by an optional protocol printer.The software SITA-LabSolution realizes a visual presentation, evaluation and further processing of measuring data.
Advantages:
- 3 measuring modes (Single, Auto and Online) adapted to different measuring tasks - Easy and direct start of measurement - Automatic adjustment of bubble lifetime – no drift, no re-adjustment necessary

Measuring principle

Like all SITA Tensiometer, the SITA pro line t15 is based on the bubble pressure method for measuring the dynamic surface tension of liquids.

Therefore, as it can be seen in the picture, an air stream is lead through a capillary into the process liquid and the pressure development for the bubble generation is measured.

Application

Determining the optimal bubble lifetime for a control of surfactant concentration

The picture shows the procedure of how to determine the optimal bubble lifetime for monitoring the concentration of a wetting agent.

After measuring the dynamic surface tension of samples with different surfactant concentration in the AUTO-mode, the optimal bubble lifetime is chosen to be the maximum difference between surface tension values of the concentration range to be monitored.

Analysis of the temperature behavior of process chemicals

in the ONLINE-mode for determining the temperature compensation for monitoring the surfactant concentration.

Continuous process monitoring

in the ONLINE-mode for the documentation of process development.

Quick measurement of surface tension

for quality control and concentration control.

Here you can find application examples [..]

For your security

Our application engineers advise you, if you can use the SITA pro line t15 for application and how to.

Software

Laboratory automation with the new Windows-Software SITA-LabSolution

•	Automation of laboratory measurements with a wide range of accessories for analysing active ingredients
•	Intuitive operation ensures efficient preparation of experiments and evaluation of measuring results
•	Easy access to all functions of the tensiometer
•	Report function for creating measurement protocols and reports

Controlling a wide range of accessories Burette (fluid dosing unit) Sampler Thermostat Magnetic stirrer, (heating) stirrer

Accessories

Process Interface
Easy integration of Tensiometer SITA pro line t15 in a continuous process monitoring.
Characteristics: potential-free access for controlling the device, current interface for measuring data

Heating plate with magnetic stirrer
and stand for SITA pro line t15

Capillaries
Type I PEEK – easy manual cleaning for paints and varnishes
Type II PEEK – for monitoring process liquids

Double walled glass vessel
For use with thermal liquid circulator (thermostat) including special cover and insulation

Sample vessels 50 ml
1 set = 10 pcs.

Acid protection kit
Borosilicate glass protection for temperature probe, glass cover, PE jacket for sensor head or device

Power supply
EURO-plug, UK-plug, US-plug

Technical data

Surface Tension
Measuring range	10...100 mN/m (dyn/cm)
Resolution	0.1 mN/m (dyn/cm)
Bubble Lifetime
Controlled range	15 ms...20,000 ms
Resolution	1 ms
Liquid Temperature
Measuring range	0...100 °C
Resolution	0.1 K
Power Supply
Mains adapter	100...240 V 47...63 Hz
Battery (Lion, integrated)	3.6 V/1,950 mAh
Power consumption	2.5 W max.
Interface, Storage, Dimensions, Weight
USB-Interface	data transfer, power supply & charging of battery
Display	124 x 168 Pixel, illuminated
Storage	3 memory areas for Single, Auto and Onlinemeasurements
Dimensions (WxHxD)	75 x 168 x 35 mm
Weight of instrument	270 g