Keithley 9139B-PCA Instructions Manual

Keithley 9139B-PCA Instructions Manual Manual pdf 21 page image

Section 3: Installation Model 9139B Probe Card Adapter Instructions3-2 9139B-901-01 Rev. A / January 2019Mechanical structureThe mechanical structure of the 9139B enables installation in a wide variety of probers. It consists ofa motherboard suspended from the prober ring. See the figure in Probe card adapter standardcomponents (on page 2-1) for details.Spacers inserted between the motherboard and prober ring connect the two assemblies. The lengthof the spacers determines the overall stack height of the probe card assembly.SafetyFailure to make sure that the safety interlock and safety shields and guards are properlyinstalled and arranged as indicated will put personnel in severe danger. Severe personalinjury or death due to electric shock or electrocution may result.For the safety interlock to function properly, the device under test (DUT) interlock sensormust be installed near the DUT connections and the interlock magnet must be installed onthe safety shield. It must be set up so that when the magnet is near the switch (interlockclosed) the operator cannot touch voltage-carrying conductors. If not properly installed, it willrender the interlock inoperative and place personnel at severe risk.