[karlsuss2-pcs] Shutdown karlsuss2 SNF 2013-04-08 12:34:20: No power

gsosa at stanford.edu gsosa at stanford.edu
Tue Apr 16 15:40:42 PDT 2013


Troubleshot and determined that emergency power contactor(F4) was not working. Replaced the module to solve the power up problem. Next problem: erratic microscope behavior. Found that power supply in the DVCU box was bad( +5 volts DC measured 3.7 VDC, 12 VDC measuring under 10 VDC and much AC ripple. Replaced the +/- 5VDC, +/- 12 VDC power supply in the DVCU box. Microscope function is now very stable. Checked lamp intensity. Was low at 13.7Mw/cm2. Could not adjust. Replaced the lamp and cleaned the condenser lens. Checked and calibrated intensity to 15.0 Mw/cm2. System is ready fo use.


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