High Voltage Shock Hazard
Keysight E5260/E5270 can force dangerous voltages (±200 V for HPSMU and ±100 V for
MPSMU/HRSMU) at the Force, Guard, and Sense terminals. To prevent electric shock
hazard, the following safety precautions must be observed during the use of Keysight
E5260/E5270.
• Use a three-conductor AC power cable to appliance coupler (inlet) and the instrument
to an electric ground (safety ground).
• Prepare shielding box which covers interface to a device under test and equipped with
interlock circuit that opens when the door is opened.
• Before performing measurement, connect the interlock circuit to the Interlock terminal
of this instrument.
• Confirm periodically that the interlock function works normally.
• Before touching the connections of the Force, Guard, and Sense terminals, turn the
instrument off and discharge any capacitors of the measurement path. If you do not
turn the instrument off, complete “all” of the following items, regardless of any
instrument’s settings.
• Terminate measurement by pressing the OutCh and On/Off keys, confirm that the
Output status indicator is not lit.
• Confirm that the HIGH VOLTAGE indicator is not lit.
• Open the shielding box access door (open the Interlock terminal).
• Discharge any capacitors if the capacitance is connected to an SMU.
• Warn workers in the vicinity of the instrument about hazardous conditions.
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