Surface & Electro-Optics Corporation
Released 2014. 05
Version
6.0
DST 30 Series
Surface Tension Meter
Administrative
Guide
Page 1: ...Surface Electro Optics Corporation Released 2014 05 Version 6 0 DST 30 Series Surface Tension Meter Administrative Guide...
Page 2: ...s Corporation Administrative Guide Copyright 2000 All rights reserved by SEO This is reprinted 2001 5 946 Kosekdong Suwon city Kyunggi Do 441 813 Korea TEL 82 31 298 9561 FAX 82 31 298 9565 www s eo c...
Page 3: ...ar Measurement Method Du No y Ring Wilhelmy Plate Measuring Range 0 to 500 dynes cm Balance Capacity 210 grams Balance Accuracy 1 mg Sample Stage Operation Precise manual stage Power Supply 110 to 220...
Page 4: ...amage SEO uses its accumulated design and production experience to deliver advanced surface analysis products that offer superior performance and enhanced durability Complete customer satisfaction thr...
Page 5: ...RING SURFACE TENSION BY THE WILHELMY PLATE METHOD 20 2 4 1 Surface Tension Result by Plate Method 23 2 5 MEASURING INTERFACIAL TENSION 24 2 5 1 Interfacial Tension Result 26 2 6 CMC CRITICAL MICELLE C...
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Page 7: ...1 Main Unit 200 mm x 250 mm x 310 mm 1 2 Weight Carrier Beam Rod 1 3 Calibration Weight 50 g 1 4 Hanger for the ring Extender 1 5 Du No y Ring 1 6 Glass Beaker 1 7 Tweezers power cable 1 8 Instructio...
Page 8: ...8 1 2 Components and Control Elements The DST 30 consists of several parts This chapter provides an overview over the instrument and its components...
Page 9: ...upply voltage fluctuations not to exceed 5 of the nominal voltage B Attention When setting up the instrument choose a location that is not in front of a bright light source Vibration can affect the re...
Page 10: ...nstrument avoid placing the instrument in sunlight near a noisy place or near an area with vibration B Unlock the Shipping Lock Bolt Shipping bolt unlock This enables use of the instrument When instal...
Page 11: ...11 D Open the top door E Open the wall window of the DST 30 F Remove the wrench bolt...
Page 12: ...12 G Turn the handle to lower the sample stage H Remove the aluminum shipping support stick I Level the instrument with the leveling legs at the base of the instrument...
Page 13: ...13 J Insert the ring into the in line Hanger K Place the in line Hanger onto the weight beam...
Page 14: ...o properly flame the Du No y ring hold over the flame for only a few seconds on the round edge E This should be done carefully Do not allow the flame to crack or melt the edges as this will ruin the r...
Page 15: ...otion E Fill the beaker approximately half full with the sample F Place the beaker on the sample stage G Adjust the beaker so that ring is positioned at the center of the beaker H Raise the sample sta...
Page 16: ...nstrument it will automatically initialize When the initialization process is complete press the Enter key Surface tension can be measured with or without a balance tare Method 1 Measuring surface ten...
Page 17: ...is found on the front of the wooden ring holder 4 Press the Enter key to move to each numerical selection component Use the arrow keys to increase or decrease the number 5 Enter the density between th...
Page 18: ...g breaks When Max g appears press the Enter button 8 The surface tension value will be displayed Selecting Restart allows you to run another sample by returning to the Set Ring step Selecting End retu...
Page 19: ...19 2 3 1 Surface Tension Result by Ring Method This is a typical graph of surface tension using a Du No y ring Note the DST 30 model does not produce this graph it will only display the digital value...
Page 20: ...n can be measured with or without a balance tare Method 1 Measuring surface tension with a balance tare Note this is the same for both ring and plate methods 1 Press the Enter Key with Balance Mode se...
Page 21: ...ess of the plate This information is found on the front of the plate holder 4 Press the Enter key to move to each numerical selection component Use the arrow keys to increase or decrease the number 5...
Page 22: ...e surface tension value will be displayed Selecting Restart allows you to run another sample by returning to the Set Plate step Selecting End returns to the first menu to select Tension Mode or Balanc...
Page 23: ...3 2 4 1 Surface Tension Result by Plate Method This is a typical graph of surface tension using a Wilhelmy plate Note the DST 30 model does not produce this graph it will only display the digital valu...
Page 24: ...aspect of thermodynamic interaction between the components of a system First prepare the two liquid samples in the beaker as shown in the image below Interfacial Tension Measurement Method 1 After po...
Page 25: ...d on the front of the wooden ring holder 11 Press the Enter key to move to each numerical selection component Use the arrow keys to increase or decrease the number 12 Enter the high density sample D l...
Page 26: ...ess the Enter button 15 The interfacial tension value will be displayed Selecting Restart allows you to run another sample by returning to the Set Ring step Selecting End returns to the first menu to...
Page 27: ...fact that the equilibrium and transport properties of the solution are affected by the aggregation of the surfactant Micelles can increase the solubility of compounds with poor solubility To measure t...
Page 28: ...a third time to select Calib then press Enter 2 Wait for the Calibration Mode Processing to complete 3 Load the 50 g weight as show in the picture below then press Enter To load the weight a Open the...
Page 29: ...29 5 Unload the 50 g weight using tweezers when instructed 6 Select End to return to the main menu...
Page 30: ...ace tension results in spherical drops of liquid as the liquid tends to minimize its surface area Liquid surface tension is the tangential force that keeps a fluid together at the air liquid interface...
Page 31: ...w 5 dyn cm the spinning drop method is recommended 5 4 Surface Cleaning When a dirty or contaminated ring or plate is used the surface tension measurement will not be valid 5 5 Purity of Liquid Impuri...
Page 32: ...nty for the DST 30 is valid for one year from the date of shipment Parts or components troubled which fail during normal operation described on this manual will be replaced free of charge during the w...
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