DSA 30 Drop Shape Analysis System

ACCESSORIES

 

PS3202 – Manual z-axis (lifting table)

PS3202 – Manual z-axis (lifting table)

The manual lifting table (z-axis) PS3202 is the easy to be used positioning solution for rapidly adjusting the sample height. The high-ratio precision drive ensures that ample force is transmitted effortlessly and accurately, even for positioning heavy samples (up to 5 kg). The table can be combined as required with manual or software-controlled axes to move the sample in the three spatial directions.

PS3205 – Manual z-axis (lifting table) for heavy loads

PS3205 – Manual z-axis (lifting table) for heavy loads

As a manual positioning table for adjusting the sample height, the PS3205 is designed for particularly heavy loads. Samples of up to 10 kg are moved effortlessly to the required height by means of the precision high-ratio drive with its comfortable crank. The lift table can be combined outstandingly well with manual or software-controlled horizontal axes. It is also designed for special accessories such as tempering chambers.

PS3250 – Software-controlled z-axis (lifting table)

PS3250 – Software-controlled z-axis (lifting table)

Controlled with precision by our software, the lifting table PS3250 provides flexible options for automating your measurements. The sample moves to the required dosing height as part of the rapidly created measuring procedure. Drops dispensed by the dosing needle can also be collected automatically for particularly low-dynamic wetting. The PS3250 is ideal for combining with horizontal motorized axes. The table moves loads of up to 10 kg and is therefore also laid out for heavy samples and for environmental chambers.

ST3200 – Standard sample table support

ST3200 – Standard sample table support

The adapter ST3200 is a sample table support for manual or software-controlled z-axes. It is securely assembled to the axis in a few easy steps and forms an absolutely flat table surface. An engraved grid helps you to position the sample accurately. Flexibly deployable holding clamps prevent the sample from shifting.

PS3210/PS3211/PS3212 – Manual axes for horizontal sample positioning

PS3210/PS3211/PS3212 – Manual axes for horizontal sample positioning

Horizontal movement of the sample table makes it possible to set up many dosing positions on the sample precisely and without contact. For this purpose, the different-length manual axes PS3210/PS3211/PS3212 can be flexibly mounted for movement in or perpendicular to the camera viewing direction.

  • PS3210: 100 mm travel in or perpendicular to the camera viewing direction
  • PS3211: 170 mm travel in or perpendicular to the camera viewing direction
  • PS3212: 350 mm travel perpendicular to the camera viewing direction

PS3244 – Manual micro positioning table

PS3244 – Manual micro positioning table

The sample table PS3244 is designed for the ultra-precise positioning of small samples. Manual fine drives for the x- and y-direction enable the table to be moved to the required measuring position with pinpoint accuracy. Samples with heights up to 2 mm can be securely fixed using the versatile, attachable sample holder.

PS3260/PS3261/PS3262 – Software-controlled axes for horizontal sample positioning

PS3260/PS3261/PS3262 – Software-controlled axes for horizontal sample positioning

The different-length axes PS3260/PS3261/PS3262 move the sample to the required dosing position under software control and with very high resolution. Two combined axes can access every position on a sample area of up to 170 × 350 mm.

  • PS3260: 100 mm travel in or perpendicular to the camera viewing direction
  • PS3261: 170 mm travel in or perpendicular to the camera viewing direction
  • PS3262: 350 mm travel perpendicular to the camera viewing direction

PA4240 – Internal Tilting Table

PA4240 – Internal Tilting Table

We have developed the internal tilting table PA4240 for software-controlled wetting analyses on inclined surfaces with high dosing flexibility. The dosing unit remains vertical, thus enabling drops to be deposited or dropped onto the already inclined surface in a defined way.

  • Angle of inclination up to 90° with a resolution of 0.01°
  • Accuracy of 0.3° ± 0.1°
  • Tilt speed from 0.5°/s to 50°/s
  • Video  recording starts automatically when tilting begins
  • Optional tilting table support ST13 can be fitted for finely adjusting the dosing position

ST13 – Tilting table support for precise sample positioning

ST13 – Tilting table support for precise sample positioning

The sample table support ST13 for our tilting tables PA3240 and PA4240 simplifies the positioning of small samples up to 50 × 50 mm. The adjusting screw moves the support plateau to the required dosing position with pinpoint accuracy. Fitting of the support is flexible to enable movement perpendicular to or along the camera viewing direction.

ST3220 – Manual wafer table

ST3220 – Manual wafer table

The manually rotatable sample table ST3220 enables you to move wafers and other round samples to the required measuring position easily and conveniently. In combination with a horizontal axis, every point on a sample with a diameter of up to 12''/300 mm can be positioned under the dosing unit. Wafers with different standard diameters are positioned exactly in the center of the table with the help of plug-in pins.

ST3270 – Software-controlled wafer table

ST3270 – Software-controlled wafer table

The software-controlled sample table ST3270 is our high-end solution for positioning wafers and other round samples with high accuracy. In combination with a motorized horizontal axis, every position on a sample with a diameter of up to 12''/300 mm can be moved exactly to the dosing point. Wafers with different standard diameters are positioned exactly in the center of the table with the help of plug-in pins.

ST10 – Set for measuring contact angle in bulk liquid

ST10 – Set for measuring contact angle in bulk liquid

We have developed the sample holder and dosing set ST10 for measuring contact angle in a bulk liquid phase. Gas bubbles (Captive Bubble) or drops are dosed beneath the sample with the help of the set’s special needle and cuvette, e.g. for analyzing hydrogels and highly energetic and structured surfaces. The special holders optimize measurements on contact lenses, films and textiles as well as on rigid samples.

ST01 – Suction table for soft, flexible samples (foils, films)

ST01 – Suction table for soft, flexible samples (foils, films)

The suction table ST01 ensures that a smooth, flat surface is achieved with foils, films and similar samples. This guarantees a reliable and precise measurement of the contact angle on such soft, flexible materials. The wide area of 100 × 100 mm creates space for a large number of dosed drops. A vacuum pump, which is required for operating the table, can be obtained from us.

ST03 – Powder sample holder for optical contact angle measurements

ST03 – Powder sample holder for optical contact angle measurements

The powder sample holder ST03 is a sample table adapter with three depressions for measuring the contact angle on powder beds. The depressions are filled with powder which is then smoothed out resulting in flat surfaces for dosing liquids. The three separate areas enable at least three positions to be analyzed without being affected by adjacent drops, even in the case of absorbent powders. Please also refer to the alternative Washburn-Method for powder contact angle with our Force Tensiometer – K100.

ST04 – Sample holder for foils and paper

ST04 – Sample holder for foils and paper

We have designed the special sample holder ST04 for measuring contact angle on foils and paper. The clamping device ensures an ideally smooth, flat surface, even with corrugated and rolled samples. The holder takes samples with a surface area of 80 × 80 mm and a thickness of up to 4 mm.

ST08 – Holder for uneven samples

ST08 – Holder for uneven samples

When measuring the contact angle on uneven samples, dosing must be carried out on a raised point in order to obtain an analyzable shadow image of the drop. For this purpose, the sample table adapter ST08 has a domed shape, over which the samples are tightened with the help of a magnetic clamping device. Combining with horizontal axes enables several measurements to be made in quick succession by dosing accurately along the crest.

ST09 – Holder for round samples

ST09 – Holder for round samples

The special sample holder ST09 simplifies the contact angle measurement for round samples such as glasses or tubes. The holder can be flexibly matched to the shape of your sample with the help of variably adjustable, sliding pins. Mounting on horizontal axes enables you to move the peak of the sample to the required dosing position accurately and conveniently.

DS3205 – Manual dosing unit for one liquid

DS3205 – Manual dosing unit for one liquid

With the dosing unit DS3205, drops of a single liquid can be manually dosed in a simple way. The slowly advancing forward feed with a micrometer screw ensures that dosing is carried out gently and the shape of the drop is not mechanically affected.

  • 500 µL glass syringe SY20 with Luer-Lock connector for fitting the needle
  • 10 disposable syringes (1 mL) with Luer-Lock connector
  • 6 Sets of 5 needles each with different combinations of material and diameter for measuring contact angle or surface tension. The needles are made of steel, PP or PTFE for differently wetting liquids.

 

DS4210 – Software-controlled dosing unit for one liquid

DS4210 – Software-controlled dosing unit for one liquid

The software-controlled dosing unit DS4210 produces drops with accurately reproducible volume for measuring contact angle and surface tension. The uniform dosing feed can be set to a very slow speed in order to accurately measure the advancing angle and the receding angle.

 

  • 500 µL glass syringe SY20 with Luer-Lock connector for fitting the needle
  • 10 disposable syringes (1 mL) with Luer-Lock connector
  • 6 Sets of 5 needles each with different combinations of material and diameter for measuring contact angle or surface tension. The needles are made of steel, PP or PTFE for differently wetting liquids.

DS4222/DS4223/DS4224 – Software-controlled multi-dosing units

DS4222/DS4223/DS4224 – Software-controlled multi-dosing units

Our multi-dosing units DS4222/DS4223/DS4224 equip the DSA30 for the fully automatic dosing of 2 to 4 liquids. The motorized lift automatically actuates the dosing height or places the drop carefully on the sample.

 

  • The required number of precision glass syringes SY22
  • Storage containers for the appropriate number of liquids
  • Additional manual single-dosing for disposable syringes
  • 10 disposable syringes (3 mL) with Luer-Lock connector
  • 6 Sets of 5 needles each with different combinations of material and diameter for measuring contact angle or surface tension. The needles are made of steel, PP or PTFE for differently wetting liquids.

SY20 – 500 µL glass syringe with Luer-Lock connector

SY20 – 500 µL glass syringe with Luer-Lock connector

The precision glass syringe SY20 is used for our manual dosing unit DS3205 or software-controlled dosing units D03211/DO4011 for one liquid. The gas-tightness of the syringe plunger and the Luer-Lock connector ensure that drops are dosed in a controlled manner even with low-viscosity liquids.

SY22 – 500 µL glass syringe with screw thread

SY22 – 500 µL glass syringe with screw thread

With our software-controlled multi-dosing units, the SY22 syringe is responsible for the controlled production of the required drop volume. To this end, the gas-tight syringe plunger is motor driven to force the liquid out of the syringe into the dosing tube. The SY22 is easily fitted to the dosing unit by means of a thread.

SY3601 – Disposable 1 mL syringe with Luer connector (100 pieces)

SY3601 – Disposable 1 mL syringe with Luer connector

The syringe SY3601 can be fitted to many of our manual and software-controlled dosing solutions and can be used for almost all liquids. It is particularly suitable for dosing highly contaminating substances such as adhesives or paints. The Luer connector ensures safe, gas-tight connections to needles and other dosing components. The syringe is supplied in sets of 100.

 NE94 – Set of disposable needles for contact angle and pendant drop

NE94 – Set of disposable needles for contact angle and pendant drop

The needle assortment NE94 provides a range of suitable needles for measuring contact angle as well as surface and interfacial tension (SFT/IFT) using the Pendant Drop method.

  • 5 steel needles with 1.8 mm diameter (SFT/IFT)
  • 5 steel needles with 0.5 mm diameter (contact angle)
  • 5 PTFE needles with 2.0 mm diameter (SFT/IFT)
  • 5 PTFE needles with 1.0 mm diameter (SFT/IFT)
  • 5 PTFE needles with 0.5 mm diameter (contact angle)
  • 5 PP needles (flexible syringe) with 0.7 mm diameter (contact angle)

NE97 – Needle set for measurements on rising air bubbles or drops

NE97 – Needle set for measurements on rising air bubbles or drops

The set NE97 with three J-shaped needles has been put together especially for measurements with the Captive Bubble method and with rising drops. The 0.5 mm diameter needle enables highly energetic, structured or pre-wetted surfaces (e.g. contact lenses) to be analyzed. With two further needles (1.0 and 2.0 mm), the interfacial tension can be measured on rising drops. This enables systems such as crude oil/water, in which the lighter phase is not transparent, to be analyzed optically.

NE50 – Needle for dosing small volumes

NE50 – Needle for dosing small volumes

The needle NE50 with 5 µm internal diameter has been designed for the manual dosing of small volumes below the microliter range. The water-repellent surface lets drops detach easily from the needle and allows to place them accurately in the required position on your sample. Please also see our accessories for dosing drops in the picoliter range and the analysis of minute probes using microscope lenses.

TC11 - Tempering chamber for large samples

TC11 - Tempering chamber for large samples

The tempering chamber TC11 has been specially developed for measuring the contact angle on large samples at temperatures of up to 130°C. The slide-in sample tray is conveniently loaded outside the chamber and can be moved from the outside when the chamber is closed and at the required temperature.

  • For sample sizes up to 132 × 132 × 27 mm (W × D × H)
  • Precision temperature sensor included
  • Connector for measurements under inert gas provided
  • Tempering between -10°C and 130°C (suitable thermostats are available from us)

TC21 – Tempering chamber for high temperatures

TC21 – Tempering chamber for high temperatures

The temperature chamber TC21 enables liquid and solid surfaces to be analyzed at temperatures up to 400°C. The target temperature is easy to specify and is reliably achieved at defined heating rates.

  • Electrical, controlled tempering between 50°C and 400°C
  • Precision temperature sensor included
  • Ideal in combination with the high-temperature dosing unit DS3241/DS4241

TC30 – Tempering chamber up to 90°C

TC30 – Tempering chamber up to 90°C

The wettability of solid samples can be reliably analyzed at temperatures up to 90°C with the help of the tempering chamber TC30. The well-sealed and insulated plastic housing and a copper heat-conducting hood ensure stable thermodynamic equilibrium.

  • Temperature range between 5°C and 90°C (suitable thermostats are available from us)
  • Precision temperature sensor included
  • Inert gas connector provided
  • Can be ideally combined with the humidity chamber HC10

TC40 - Tempering chamber for rapid temperature changes

TC40 - Tempering chamber for rapid temperature changes

With rapid temperature changes between -30°C and 160°C, the tempering chamber TC40 is our flexible solution for wettability analyses under different thermal conditions.

  • Fast electrical tempering between -30°C and 160°C
  • Precision temperature sensor included
  • Liquid counter-cooling (suitable thermostats are available from us)
  • Inert gas connector provided
  • Can be combined with the humidity chamber HC10 between 5°C and 90°C

TC3212 – Tempering unit for liquids

TC3212 – Tempering unit for liquids

The unit TC3212 tempers liquids for measuring contact angle or surface tension at up to 130°C. Embedded in a heat-conducting metal sleeve, the filled syringe quickly reaches the desired temperature.

  • Temperature range -10°C to 130°C (suitable thermostats are available from us)
  • Precision temperature sensor included
  • Also suitable in combination with tempering chambers TC11, TC30 and TC40

SC30 – Glass cuvette for temperature-controlled measurement of interfacial tension

SC30 – Glass cuvette for temperature-controlled measurement of interfacial tension

We have designed the dosing unit DS4241 specially for analyzing the wetting and surface tension of melts at temperatures between 50°C and 400°C.

    Stopper tools in glass and non-stick PTFE

    Additional dosing plunger with PTFE seal for low viscosities

    Effective cleaning tool.

TP20 – Temperature sensor

TP20 – Temperature Sensor

The TP20 is a highly accurate temperature sensor which can be used flexibly with your instrument. Thanks to the large measuring range between -50°C and 400°C at 0.1°C precision, it measures room temperature just as reliably as the working temperature of our tempering accessories. Measurement is carried out immediately at the sensor tip, thus reproducing the actual conditions directly at the solid or in the liquid sample. Our software links the temperature to the current analysis results.

CF3217 – High-speed camera

The high-speed camera CF3217 is especially suitable for investigating the initial wetting by falling drops or contact angle measurements on very fast absorbing samples. With high-resolution images at up to 1000 frames/second, the camera outputs the necessary frame rate for accurately analyzing wetting processes in the millisecond range.

CP21/CP22 – Sets of contact angle standards for the height-width method

CP21/CP22 – Sets of contact angle standards for the height-width method

The sets CP21 and CP22 each contain standards with shapes of exactly circular drops for calibrating the height-width method and the circle method for measuring the contact angle. The shapes with contact angles of 30°, 60° and 120° deviate by less than 0.1° from the nominal value. The set CP22 additionally includes a certificate which confirms the high accuracy of the print.

CP25/CP26 – Sets of pendant drop standards for the Young-Laplace method

CP25/CP26 – Sets of pendant drop standards for the Young-Laplace method

The sets CP25 and CP26 are used for calibrating the Pendant Drop method for measuring the surface tension (SFT). The printed shapes of pendant drops exactly follow the theoretical drop shape according to Young-Laplace for SFT values of 20 mN/m and 50 mN/m. The deviation from the nominal value is less than 0.01 mN/m. The set CP26 additionally includes a certificate which confirms the high accuracy of the print.

CK4232/CK4234 – Conversion set for micro-drop analyses

CK4232/34 – Conversion set for micro-drop analyses

The sets CK4232 (for drops above 20 pL) and CK4234 (for drops above 60 pL) equip your DSA30 for precisely analyzing the wetting of tiny samples. The conversion option enables you to switch the measuring mode from conventional drop dosing to micro-drop analysis without the need for a second instrument frame. The high-quality microscope lens and the set’s particularly powerful special lighting ensure a clear, sharp image of the drop. The different dosing units of the two sets produce drops from 20 pL and 60 pL respectively, which are placed with pinpoint accuracy with the help of a micro-positioning unit.

PS3240 – Software-controlled micro positioning table

Software-controlled micro-positioning table PS3240

The micro sample table PS3240 enables samples to be positioned under software control when analyzing solids with picoliter drops. You can incorporate the movement of the sample table in the x- and y-direction into semi-automatic sequences, for example for a series of contact angle measurements along a conductor path. With a resolution of 1 µm and a position deviation of less than 0.02 % over the whole travel length of 50 mm, the required position is achieved with the utmost precision.

PA3235 – Viewing lens for micro-drop analysis

PA3235 – Viewing lens for micro-drop analysis

The viewing lens PA3235 simplifies the dosing of picoliter drops at the required sample position with pinpoint accuracy. An additional camera captures an enlarged live image of the sample so that the position of the dosed, microscopically small drop relative to the sample is easily visible. This accessory therefore helps you to adjust the position of the dosing unit and the sample table. The viewing lens PA3235 can be easily retrofitted to your instrument for micro-drop analysis.

ST06 – Fiber holder for micro-drop analysis

ST06 – Fiber holder for micro-drop analysis

The fiber holder ST06 enables fibers to be conveniently positioned for measuring the contact angle with picoliter drops. The exactly horizontally clamped sample with a thickness of up to 700 µm can be rotated, thus enabling several measurements to be taken in one position. Unwanted wetting along the fiber by dosed drops is prevented, as the sample does not come into contact with an underlay. Please also see our solution for analyzing the wetting of single fibers with the Force Tensiometer – K100SF.

DS4265 – Module for interfacial rheolog

DS4265 – Module for interfacial rheology

The module DS4265 is used for analyzing drops to measure interfacial rheological properties of liquids. In doing so, the change in the surface or interfacial tension is measured as a drop specifically changes in size. The magnitude of the change is mathematically divided into an elastic and viscous component (elasticity and viscosity modulus).

The module DS4265 includes the following components:

 

  • Piezo unit for dosing specifically changing drop sizes with associated electronics board
  • Software for calculating interfacial rheological parameters from the raw data

UGR3260 – Interfacial rheology by measuring the Laplace pressure

UGR3260 – Interfacial rheology by measuring the Laplace pressure

The UGR3260 is an additional unit for the module DS3265/DS4265 for interfacial rheological analyses. Here, a high-precision pressure sensor measures the Laplace pressure in a sinusoidally oscillating drop. In liquid-liquid systems, this method does not need a difference in density between phases, as is the case with optical measurements. Pressure measurement is also particularly suitable for highly viscous systems.

TVA100 - Module for measuring contact angle using the top view distance method

TVA100 - Module for measuring contact angle using the top-view distance method

The TVA100 module equips your instrument for carrying out surface analyses using the top view distance method. The measuring head’s precision dosing feature produces a drop with defined volume.

 

The following are included in the scope of supply:

 

  • Precision dosing unit for producing accurate drop volumes
  • High-quality optical components and high-resolution camera
  • Pre-prepared measuring procedures in the software for rapid results

CP31 – Calibration set for the Top View Analyzer – TVA100

CP31 – Calibration set for the Top View Analyzer – TVA100

The calibration set CP31 comprises stainless steel balls with accurately defined radii and a correspondingly accurate surface curvature. The balls serve as models for spherically curved drop surfaces for checking  the reliability of the optical contact angle measurement using the top-view distance method. The 8 balls in the set cover the whole measuring range of the TVA100 in fine increments.

NE49 – Pipette tips for the dosing unit of the Top View Analyzer – TVA100

NE49 – Pipette tips for the dosing unit of the Top View Analyzer – TVA100

The dosing accessory NE49 contains 96 pipette tips for dosing highly accurate volumes for measuring the contact angle using the top view distance method.

VP01 – Vacuum pump

VP01A – Vacuum pump

  • Degassing of liquids for picoliter dosing units or for interfacial rheology to prevent the formation of troublesome air bubbles (with additional connector set SP01)
  • Removal of dosed drops when measuring contact angle to enable several positions along the optical axis to be analyzed (with additional connector set SP01)
  • Flushing the tiny dosing opening of picoliter dosing units (with additional connector set SP01)
  • Producing the vacuum for fixing foils and films for the suction table ST01
  • Use of the vacuum for the filter base cleaning tool TO4501 for the Dynamic Foam Analyzer – DFA100

SP01 – Vacuum pump connector set

SP01 – Vacuum pump connector set

  • Degassing liquids. The interfacial rheology module and our micro dosing units work even more reliably if no air bubbles can form during the measurement.
  • Drying and cleaning micro dosing units. The dosing unit’s tiny opening can easily be dried or flushed with the help of a vacuum pump.
  • Removing dosed drops when measuring contact angle. Removing analyzed drops enables further drops to be dosed in the camera viewing direction without superimposed drop images interfering with the evaluation.

SP3201/SP3202 – Storage bottles for multi dosing units

SP3201/SP3202 – Storage bottles for multi dosing units

We have prepared the two sets SP3201 and SP3202 with 25 mL storage bottles especially for use in your multi dosing unit. As well as a gas-tight screw cap, a cap with an opening and a silicone seal with a hole for the dosing tube are also included. The bottles have a magnetic bottom which attaches to the base plate of the measuring instrument.

 

  • SP3201: Set with one transparent glass bottle
  • SP3202: Set with one brown glass bottle for protecting light-sensitive liquids, especially diiodomethane

PA3250 – Set for electrowetting applications

PA3250 – Set for electrowetting applications

The modification of wetting properties in an electric field (electrowetting) is used for innovative technologies such as liquid lenses and special displays. The set PA3250 makes it possible to measure the contact angle with a voltage applied. This is achieved by voltage limiters (250 V) for DC and AC, insulators for the sample table and dosing unit, and connecting cables with crocodile clips. This makes it easy for you to use your intended voltage source for electrowetting analyses.

DO43 – Syringe plunger for high-temperature dosing units

DO43 – Syringe plunger for high-temperature dosing units

The syringe plunger DO43 for high-temperature dosing units enables low-viscosity melts to be dosed at temperatures up to 250°C. The plunger fits accurately into the melt cylinder and is fitted with a PTFE seal which prevents the melt from running out.

DO44 – Melt cylinder for high-temperature dosing units

DO44 – Melt cylinder for high-temperature dosing units

The melt cylinder DO44 is made of robust brass with good heat-conducting properties and is therefore ideal for heating and dosing with our high-temperature dosing units. The inside diameter is designed to exactly match the associated stainless steel dosing plunger.

TO41 – Cleaning tool for high-temperature dosing units

TO41 – Cleaning tool for high-temperature dosing units

The cleaning set TO41 enables you to quickly and easily remove melt residues from the components of your high-temperature dosing unit. The set comprises three specially shaped, robust tools for all areas that need cleaning:

 

  • Reamers for the cylinder walls
  • Conically tapered drill bit (countersink) for the transition between cylinder and needle
  • Special CrNi steel wire for cleaning the cannula

Product Detail