Keithley 9139B-PCA Instructions Manual

Keithley 9139B-PCA Instructions Manual Manual pdf 23 page image

Section 3: Installation Model 9139B Probe Card Adapter Instructions3-4 9139B-901-01 Rev. A / January 2019Additional probe card adapter safety interlock cableThe Model 174-7047-XX Safety Interlock Cable provides additional protection from electric shock atthe Keithley probe card adapter (PCA). The cable attaches to the prober top plate and the PCA sothat if you unlatch the top plate of the prober and lift it up to change a probe card or take off the PCA,the interlock is tripped.Figure 7: Model 174-7047-XX Safety Interlock CableThe Model 174-7037-XX cable can be used with customer-supplied PCA solutions.Figure 8: Model 174-7037-XX interlock cableThe Model 174-7047-XX cable interfaces with your prober interlock through a relay contact. Ashorted prober contact engages the interlock circuit. An open contact interrupts the interlock, turningoff hazardous voltage.