HP 83620A, 24A, 22A manual Before switching on this instrument, make sure that the line

CAUTION	H Before switching on this instrument, make sure that the line
	voltage selector switch is set to the voltage of the power supply and
	the correct fuse is installed.
	n Always use the three-prong ac power cord supplied with this
	instrument. Failure to ensure adequate earth grounding by not
	using this cord may cause instrument damage.
	n Before switching on this product, make sure that the line voltage
	selector switch is set to the voltage of the power supply and
	the correct fuse is installed. Assure the supply voltage is in the
	specified range.
	w Ventilation Requirements: When installing the instrument in a
	cabinet, the convection into and out of the instrument must not be
	restricted. The ambient temperature (outside the cabinet) must be
	less than the maximum operating temperature of the instrument
	by 4 “C for every 100 watts dissipated in the cabinet. If the total
	power dissipated in the cabinet is greater than 800 watts, then
	forced convection must be used.
	n This product is designed for use in Installation Category II and
	Pollution Degree 2 per IEC 1010 and 664, respectively.
Note
	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.

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