KSV Surface Potential Meter Page 8 User Manual Download

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KSV SPOT Manual

Installed KSV SPOT measuring head is shown below.

Now the KSV SPOT1 should be properly installed and ready for measurements.

RCA connector for
Counter Electrode

Crocodile clip

Installed KSV SPOT measuring head is shown below.

Now the KSV SPOT1 should be properly installed and ready for measurements.

KSV SPOT

Rev. 1.0

Now the KSV SPOT1 should be properly installed and ready for measurements.

15-pin connector
for device cable

Counter Electrode

Summary of Contents for Surface Potential Meter

Page 1: ...User s Manual Surface Potential Meter Revision 1 0...

Page 2: ...PLE OF MEASUREMENT 6 5 INSTALLING THE KSV SPOT 7 5 1 Installation steps 7 5 1 1 KSV SPOT software 7 5 1 2 Connecting cables 7 5 1 3 Using KSV SPOT with third party devices 9 5 1 4 Calibration of the K...

Page 3: ...surface potential data Thus giving you for example the following additional information about your monolayers Composition Dissociation degree Orientation Interaction Adsorption The software included...

Page 4: ...od Dynamic range 4 to 4 V Sensitivity 1 mV Response time 2 seconds Inaccuracy 3 mV Height dependency 10 mV mm Drift Negligible in air 3 mV h with subphase Probe diameter 16 mm Sensor head dimension 13...

Page 5: ...floating monolayer is to measure the changes in the surface potential V 5 This is possible due to the fact that an insoluble monolayer at the gas liquid interface changes the surface potential through...

Page 6: ...which type of measurement is performed As the upper electrode vibrates the capacitance between the electrode and the test surface changes This change in capacitance induces an AC current to the circui...

Page 7: ...SPOT software The SpotMonitor software is supplied on a CD ROM disk Load the software onto the desired drive using normal Windows procedures NOTICE This software needs to be installed only if the KSV...

Page 8: ...surements RCA connector for Counter Electrode Crocodile clip 8 Installed KSV SPOT measuring head is shown below Now the KSV SPOT1 should be properly installed and ready for measurements KSV SPOT Rev 1...

Page 9: ...put 5V to 5V The KSV SPOT requires 12Vdc operating voltage is shown below Calibration of the KSV SPOT KSV SPOT is factory calibrated and there should be no need for re Below is described the calibrati...

Page 10: ...d Calibration icon in the Main Menu window The window for this section should appear as follows Scroll the Systems Diagnostics devices list to select Spm0 and press the Calibrate button Measure the co...

Page 11: ...nected to Counter Electrode and positive voltage to RCA connector Enter complement value negative to Second Potential V field Make sure that reading in Second value native units has stabilized and pre...

Page 12: ...h the measuring probe Adjust the height of the measuring head so that the gap between the test surface and the vibrating plate is a few mm head by switching the toggle switch to up position should be...

Page 13: ...from the File drop down menu in the Data Monitoring window The Experimental Setup window will now appear Fill in the Experimental Setup form and press the Start button The User Sample and Additions i...

Page 14: ...nt is stopped automatically after the time inserted in the Measurement Control window The measurement can also be stopped before the measurement time has finished by pressing Stop in the Measurement C...

Page 15: ...box in the lower right corner Then press OK and close all the windows and the KSV WinLB software Now everything is set for surface potential measurements For a measurement start the KSV WinLB software...

Page 16: ...he compression is started Otherwise all of the solvent may not have evaporated which can influence the outcome of the experiment Spread as small amount as possible of the substance on the subphase The...

Page 17: ...rol Software and the control window has not been closed The collection of surface potential data is stopped when the chosen LB experiment is completed or stopped When a new measurement is performed th...

Page 18: ...ature values The reproducibility of the KSV SPOT measuring head is very good which is seen from the low standard deviation of the results Surface pressure and Surface potential isotherm of Stearic aci...