
4
General Safety Considerations
WARNING This is a Safety Class 1 product (provided with  a protective earthing 
ground incorporated in the power cord). The mains plug shall only be 
inserted in a socket outlet provided with a protective earth contact. 
Any interruption of the protective conductor inside or outside o f the 
product is likely to make the product dangerous. Intentional 
interruption is prohibited.
WARNING No operator serviceable parts inside. Refer servicing to quali fied 
personnel. To prevent electrical shock, do not remove covers.
WARNING For continued protection against fire hazard , replace line fuse only 
with same type and ratings, (type T 0.315A/250V for 100/120V 
operation and 0.16A/250V for 220/240V operation). The use of other 
fuses or materials is prohibited. Verify that the value of the line-
voltage fuse is correct. 
• For 100/120V operation, use an IEC 127 5×20 mm, 0.315 A, 250 V, Agilent  
part number 2110-0449.
• For 220/240V operation, use an IEC 127 5×20 mm, 0.16 A, 250 V, Agilent 
Technologies part number 2110-0448.
CAUTION Before switching on this instrument, make sure tha t the line voltage selector 
switch is set to the line voltage of the power supply and the correct fuse is 
installed. Assure the supply voltage is in the s pecified range. 
CAUTION This product is designed for use in Installation Category II and Pollution 
Degree 2 per IEC 1010 and 664 respectively.
CAUTION VENTILATION REQUIREMENTS: When installing the product in a cabinet, the 
convection into and out of the product must not be restricted.  The ambient 
temperature (outside the cabinet) must be less than the maximum operating 
temperature of the product by 4°C for every 100 watts dissipated in the 
cabinet. If the total power dissipated in the cabinet is greater th an 800 watts, 
then forced convection must be used.
CAUTION 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.
CAUTION Do not connect ac power until you have verified the line voltage is correct. 
Damage to the equipment could result.