Keysight Technologies B2961A User Manual page 11

High Voltage Shock Hazard
Keysight B2961A/B2962A can force dangerous voltages (±210 V) at the High Force, Guard,
and High Sense terminals. To prevent electric shock hazard, the following safety
precautions must be observed during the use of Keysight B2961A/B2962A.
• 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 High Force, Guard, and High 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 source output by pressing the On/Off switch, confirm that the On/Off
switch turns off.
• Confirm that the HV (high voltage) status indicator is not lit.
• Open the shielding box access door (open the Interlock terminal).
• Discharge any capacitors if the capacitance is connected to this instrument.
• Warn workers in the vicinity of the instrument about hazardous conditions.