M370430-01 Rev B    v 
 
 
Important Safety Instructions 
 
WARNING: High energy and high voltage 
Exercise caution when using a power supply. High energy levels can be stored 
at the output voltage terminals on a power supply in normal operation. In 
addition, potentially lethal voltages exist in the power circuit and on the output 
and sense connectors of a power supply with a rated output greater than 40 V. 
Filter capacitors store potentially dangerous energy for some time after power is 
removed. 
WARNING: Fire hazard 
Operate the power supply in an environment free of flammable gases or fumes. 
To ensure that the power supply's safety features are not compromised, use the 
power supply as specified in this Manual and do not substitute parts or make any 
unauthorized modifications. If service is necessary, please return the power 
supply to the Authorized Service Center. See the Warranty on page ii. 
WARNING: Limitations on use 
The XG and XTR Family Programmable DC Power Supply is not intended for 
use in connection with life support systems or other medical equipment or 
devices. 
CAUTION: For use as a battery charger 
When you are using a power supply for battery charging applications, it is 
essential to provide an appropriately sized fuse or circuit breaker in series 
between the power supply output and the battery. 
Installation of a protector (fuse or DC circuit breaker), rated for about 115% of 
the maximum current rating of the power supply and designed specifically to 
interrupt the DC voltage of the battery, will provide adequate current protection. 
Where several power supplies are in parallel, it is best to fuse each power supply 
rather than use one fuse at the battery. 
 
Power Supply Safety Markings 
Protective Conductor Terminal  
Caution (Check the Manualfor 
additional information.)