Fluke 8845A FE 8845A & 8846A Users Manual - Page 70

8845A/8846A Users Manual Making a Four-Wire Resistance Measurement The Meter incorporates two methods of making a four-wire resistance measurement. The traditional method is to use four meter leads to connect the Meter to the resistance to be measured. The optional 2X4 Wire test leads simplifies the four-wire measurement so you only have to plug in two test leads to the Input HI and LO connectors of the meter. To make a four-wire resistance measurement using four test leads: 1. Connect the test leads to the Meter's input connectors as show in Figure 4-2. 2. Press N. 0.217384 4 W F1 F2 F3 F4 F5 caw031.eps 3. If not already highlighted as shown above, press the 4WIRE soft key to switch to a four-wire measurement. INPUT V 2W/4W HI SENSE 4W HI 1000 V CAT I 600V CAT II 300 V LO LO 1V FUSED 100 mA 10 A REAR FRONT Figure 4-2. Input Connections for 4-Wire Resistance Measurements caw023.eps To make a four-wire resistance measurement using Fluke's 2X4 test leads: 1. Connect the test leads to the Meter's input connectors as show in Figure 4-3. 2. Press N. 3. If not already highlighted, press the 2X4WIRE soft key. 4-8