Fluke 725Ex FE 725ex Users Manual - Page 15
Warning, Calibrator. See Ex Hazardous Areas. - series manual
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Ex Hazardous Areas W Warning To avoid electric shock, injury, damage to the Calibrator, or ignition of an explosive atmosphere, follow all equipment safety procedures. • Use the Calibrator only as described in this User Manual and the Fluke 725Ex CCD (Concept Control Drawing) or the protection provided by the Calibrator may be impaired. • Inspect the Calibrator before use. Do not use it if it appears damaged. • Check the test leads for continuity, damaged insulation, or exposed metal. Replace damaged test leads. • When using probes, keep fingers behind the finger guards on the probes. • Never apply more than 30.0 V between the input terminals, or between any terminal and earth ground. • Applying more than 30.0 V to the input terminals invalidates the Calibrator's Ex Approval and may result in permanent damage to the unit so it can no longer be used. • Use the proper terminals, mode, and range for the measuring or sourcing application. • To prevent damage to the unit under test, be sure the Calibrator is in the correct mode before connecting the test leads. • When making connections, connect the COM test probe before the live test probe. When disconnecting, disconnect the live probe before the COM probe. • Never open the Calibrator case. Opening the case invalidates the Calibrator's Ex Approval. • Make sure the battery door is closed and latched before entering an Ex hazardous area or using the Calibrator. See "Ex Hazardous Areas". • Replace the battery as soon as the B (low battery) symbol appears to avoid false readings that can lead to electric shock. Remove the Calibrator from the Ex-hazardous area before opening the battery door. See "Ex Hazardous Areas". • Remove test leads from the Calibrator before opening the battery door. • Measurement Category I (CAT I) is defined for measurements performed on circuits not directly connected to the mains. • Turn off circuit power before connecting the Calibrator mA and COM terminals in the circuit. Place Calibrator in series with the circuit. 5