Agilent Technologies 4155C User Manual page 42

WARNING
Installation
This chapter describes how to install Agilent 4155C/4156C and accessories.
• Requirements
• Inspection
• Connecting the 41501A/B
• Installing accessories
• Mounting connectors
• Connecting peripherals
• Maintenance
There are potentially hazardous voltages (200 V for HPSMU, and 100 V for
HRSMU and MPSMU) present at the Force, Guard, and Sense terminals of the
4155C/4156C. To prevent electrical shock, the following safety precautions
must be observed during the use of the 4155C/4156C.
• Use a three-conductor ac power cable to connect the cabinet (if used) and
the 4155C/4156C to an electrical ground (safety ground).
• If you do not use the 16442A/B test fixture, you must connect the Intlk
terminal to a switch that turns off when the shielding box access door is
opened.
• Confirm periodically that the interlock function works normally.
• Before touching the connections on the Force, Guard, and Sense
terminals, turn the 4155C/4156C off and discharge any capacitors. If you
do not turn the 4155C/4156C off, complete all of the following items,
regardless of the 4155C/4156C settings.
• Terminate measurement by pressing Stop key, confirm that the
MEASUREMENT indicator is not lit.
• Deactivate standby mode (if used) by pressing Standby key, confirm
that the Standby indicator is not lit.
• Confirm that the HIGH VOLTAGE indicator is not lit.
• Open the shielding box access door (open the Intlk terminal).
• Discharge any capacitors connected to an SMU.
• Warn persons working around the 4155C/4156C about dangerous
conditions.
2-2 Agilent 4155C/4156C User's Guide Vol.1, Edition 11