Model SR715 Model SR720 LCR Meters

OPERATIONKELVIN CLIPSKelvin Clips provide a simple means to measure large or unusually sized parts.They can connect to any component lead up to 0.3" (7.6mm) in diameter. Whenconnecting the Kelvin Clips to a device, remember that the red lead denotes the"+" side of the fixture if any biased measurements are made. Connect one clip toeach side of the component and perform the measurement. Whenever the fixtureconfiguration is changed, be sure to perform open and short circuit calibration.Kelvin Clips will give the best results if they are used at frequencies of 1 kHz andbelow and impedances of 1 MΩ or less. At higher frequencies, lead position andother subtle conditions can change stray impedances, affecting measurementaccuracy. For measurements outside of these limits, a test fixture is advised.SMD TWEEZERSThe SMD Tweezers provide a combination of test fixture and handling tweezersfor measuring surface mount devices. The tweezers make a Kelvin connection todevices up to 0.4" (10.2mm) wide and make it easier to measure and sort thesesmall components. The parts tray in front of the fixture provides a convenientplace to place parts while sorting and measuring them. Connection of the SMDtweezers to the SR715/720 fixture is the same as for the Kelvin Clips.Remember, always perform open and short circuit calibration after changing thefixture setup. The tweezers are marked with the same polarity as the fixture formaking biased capacitance measurements. (Some units do not have the polarity2-14