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Bird Model 4391M Power Analyst
ii
NOTE: Calls attention to supplemental information
Fuse Replacement
Always use the same type and rating of fuse when replacing the fuse.
Fuse information can be found in the parts list on page 30.
Warning Statements
The following safety warnings appear in the text where there is danger to
operating and maintenance personnel, and are repeated here for emphasis.
CAUTION
Caution notes call attention to a procedure which, if not correctly
performed, could result in damage to the instrument.
The caution symbol appears on the equipment
indicating there is important information in the
instruction manual regarding that particular area.
WARNING
Use only NIckel Metal Hydride (NiMH) batteries that have a minimum
capacity of 4600 milliamper hours (mAh). Do not install batteries that are
not Nickel Metal Hydride. Do not install NiMH batteries that have less
than 4600 mAh capacity. Failure to comply may result in damage to the
batteries, damage to the instrument, and injury to personnel from battery
chemicals.
WARNING
Use dry cleaning solvents in a well ventilated area. Avoid excessive
inhalation of solvent fumes, since they can be toxic in heavy concentrations.
Always wear eye protection and avoid skin contact with the solvent.
WARNING
Be sure that the power cable is unplugged before opening the wattmeter
case. The power supply capacitor, C1, can retain a dangerous charge that
must be removed before touching. Always have another person standing by
who is trained in electric shock first aid.