Fluke 8808A User Manual - Page 47

3 Operating the Meter from the Front Panel Selecting a Measurement Function Ground tab 2W/4W HI INPUT V SENSE 4W HI 1000V 750V MAX LO 200 mA MAX 1000 V 600 V CAT I CAT II 300 V 1V LO 500 Vpk 10 A MAX mA 10 A Figure 3-7. Input Connections for 4-Wire Ohms Using 2x4 Wire Leads eue26.eps Measuring Current W Caution To avoid blowing the current fuse or damaging the Meter, do not apply power to the circuit under test until test leads are properly installed to the appropriate input terminals. For current measurements above 200 mA, install the test leads into the 10 A and LO terminals only. The Meter is capable of making ac and dc current measurements up to 10 A. To perform a current measurement: 1. Turn off power to the circuit under test. 2. Connect test leads between the Meter and the circuit under test. 3. If the circuit current is unknown, start by using the 10 A and LO terminals. 4. If the measurement is expected to be below 200 mA, connect the test leads to the 200 mA and LO terminals only and remove any leads in the 10 A terminal. See Figure 3-8. 5. For measurements expected to be 200 mA to 10 A, connect the test leads to the 10 A and LO terminals only. See Figure 3-9. 6. Press B to measure ac current or press E to measure dc current. 7. Apply power to the circuit under test. The Meter selects the appropriate range in autorange mode. The function and measurement are displayed. 3-13