Fluke 355 Fluke 353 & 355 Users Manual - Page 10

353/355 Users Manual Safety Information XWWarnings: Read First To avoid possible electric shock or personal injury: • Use the Meter only as specified in this manual or the protection provided by the Meter might be impaired. • Avoid working alone so assistance can be rendered. • Never measure ac current while the test leads are inserted into the input jacks. • Do not use the Meter in wet or dirty environments. • Do not use the Meter if it appears damaged. Inspect the Meter before use. Look for cracks or missing plastic. Pay particular attention to the insulation around the connectors. • Inspect the test leads before use. Do not use them if insulation is damaged or metal is exposed. • Check the test leads for continuity. Replace damaged test leads before using the Meter. • Have the Meter serviced only by qualified service personnel. • Use extreme caution when working around bare conductors or bus bars. Contact with the conductor could result in electric shock. • Do not hold the Meter anywhere beyond the tactile barrier. See Figure 1. 2 • When measuring current, center the conductor in the clamp. See Figure 1. • Do not apply more than the rated voltage, as marked on the Meter, between the terminals or between any terminal and earth ground. • Remove test leads from the Meter before opening the Meter case. • Never operate the Meter with the back cover removed or the case open. • Never remove the back cover or open the case of an instrument without first removing the test leads or the jaws from a live conductor. • Use caution when working with voltages above 30 V ac rms, 42 V ac peak, or 60 V dc. These voltages pose a shock hazard. • Do not attempt to measure any voltage that might exceed the maximum range of the Meter- 600 V rms and 1 kHz or 1000 V dc. • Use the proper terminals, function, and range for your measurements.