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TSD 971  TENSIOMETRY SYSTEM DIGITAL

TSD 971 TENSIOMETRY SYSTEM DIGITAL

ASTM D971, ASTM D1331*, ASTM D1417*, ASTM D1590*, ISO 304*, ISO 1409*, ISO 4311*, ISO 6295, ISO 6889*, DIN 53914 and DIN 53993

MODULABLE METERING ASSEMBLY FOR STATIC OR DYNAMIC* MEASUREMENT OF SURFACE TENSION*, INTERFACIAL TENSION, CONTACT ANGLE*, ABSORPTION* / WIKING*, WETTABILITY*, SURFACE ENERGIES*, HOMOGENEITY*, FIBER DIAMETER*, CRITICAL MICELLE CONCENTRATION*, DENSITY* AND WEIGHT* OF LIQUID, POROUS* AND SOLID* MATERIALS

1.1 Tensiometer System, Digital

  • Accurate electronic gravimetric scale with hanging probe assemblies
  • Adjustable precision lift stage with steady wheel
  • Suspended probe system in PURE Platinum for optimal precision (no Pt-Ir alloy)
  • Glass vessel for liquid sample
  • Display of surface tension value expressed in mN/m (dyne/cm) measured with the Wilhelmy method
    and of the surface tension and the interfacial tension (mg) by means of an external software.
  • Platinum du Nouy ring made to the ASTM D971 specifications
  • Optional automatic jack with programmable speed
  • Optional DYNTENSION Windows softwares for dynamic measurements
  • Optional Glass plates with micro roughened surface (dimensions 24x24x0.15 mm)
  • Optional Platinum plate
  • Optional thermometric probe Pt 100 1/3 DIN
  • Optional floater calibrated in weight and in volume and double wall cylinder for relative density measurement of oils and water (this is required to calculate and correct the surface and the interfacial tension forces
  • Optional thermostatic vessel for temperature control of the sample during the test process
  • Optional special pan and certified masses for external metrological control
  • 1.2 Technical specifications

    Measurement principle: Torsion wire
    Precision: +/- 0.1 mN/m (dyne/cm) with du Nouy Ring and +/- 0,2 mN/m with Whilhelmy plate
    Precision in Contact Angle +/-0,5
    Dimensions: L220 x D355 x H350 mm
    Capacity: 1-60000 mg/mm or 0.1-550 mN/m /Dyne/cm) or optional 0-180 Contact Angle
    Max. sample diameter 120 mm
    Stage travel 150 mm +/- 0.01 mm
    Temperature measurement range: 7 to 34C
    Temperature accuracy: 0.025C
    Temperature reproductibility: +/- 0.05 C
    Temperature readability: 0.1C
    Density measurement range: 0.5 to 2.25 g/ml
    Density readability: 0.00005 g/ml
    Density precision and reproductibility: +/- 0.00005 g/ml
    Electronic zeroing before measurement
    Autocalibration with internal mass

    1.3 Technical details of some optional supplies

    Automatic jack with programmable speed (from 21 to 328 mm/s or from 0,004 to 21 mm/s)

    DYNTENSION Softwares with the following performances: 1. Real-time display on PC of:
  • force changes (in dyne) during the measurements
  • testing time
  • surface tension values (and interfacial tension on request)

  • 2. data recording (useful for other experiments)
    3. changing value of plate perimeter (if different from standard)
    4. selection of manual or automatic system for determination of end of measurement
    5. Advantages:
  • The measure is independent of the operator subjectivity and the instrument control is complete, with method storage, development, dynamic hysteresis curve, real time buoyancy correction, Administrator mode to protect standard methods from unauthorized modification, GLP to flag any changes to the original data, fully automatic calibration and a complete range of analyses with guide step by step for development of new methods
  • Possibility to change the position of the elevator for 0 to 150 mm and the speed too
  • Control of the change in speed allow a better precision in the measurement
  • The software stores the data of each test (speed, positions, tensions)
  • Display of the necessary time for execution of the test due to programmed movements and speed

  • Thermometric probe Pt 100 1/3 DIN:
    1. range of measure: 7-34C
    2. accuracy: 0.025C
    3. reproductibility: 0.05 C
    4. readability: 0.1C

    Glass plates with micro roughened surface (dimensions 24x24x0.15 mm)
    Platinum Wilhelmy plate
    Platinum du Nouy ring
    Special floater calibrated in weight and in volume with holder and double wall cylinder for relative density measurement, made of pure Platinum, borosilicate glass and standard solid of Silicon:
    1. range of measure for the density: 0.5 2.25 g/cm3
    2. readability: 0.00005 g/cm3
    3. precision and reproductibility: 0.00005 g/cm3

    Other probe types (Lenard frame, rods, discs, tubes, cones and spheres) Specific container for sample thermostatation
    Special pan and certified masses for metrologic control

    DESCRIPTION