Keysight Technologies Startup Guide                     3-9
Safety and Regulatory Information
Regulatory Information
Equipment Installation (AC/DC Adapter)
Equipment Operation (AC/DC Adapter)
Operator Equipment Maintenance and Service (AC/DC Adapter)
Use a Keysight supplied power cord that is the same or better 
electrical rating. 
This instrument has auto-ranging line voltage input; be sure the supply 
voltage is within the specified range and that voltage fluctuations do not to 
exceed 10 percent of the nominal supply voltage.
Install the instrument so that the detachable power cord is readily 
identifiable and is easily reached by the operator. The detachable power 
cord is the instrument disconnecting device. It disconnects the mains 
circuits from the mains supply before other parts of the instrument. The 
front panel switch is only a standby switch and is not a LINE switch. 
Alternatively, an externally installed switch or circuit breaker (which is 
readily identifiable and is easily reached by the operator) may be used as a 
disconnecting device.
To prevent electrical shock, disconnect the Keysight Technologies 
P937xA from mains before cleaning. Use a dry cloth or one slightly 
dampened with water to clean the external case parts. Do not 
attempt to clean internally.
Position equipment to ensure easy access to disconnecting device.
Use Keysight supplied power cord or one with same or better 
electrical rating.