User manual

ManualsBrandsKEYSIGHT TECHNOLOGIES ManualsTest & MeasurementDigital multimeter, U1270-series, 30000 counts, CAT III 1000 V, CAT IV 600 V

U1271A/U1272A Service Guide XIII

List of Figures

Figure 1-1 LCD display screen 5

Figure 1-2 A-Err display 6

Figure 1-3

μA-Err display 7

Figure 1-4 SECUr display 19

Figure 1-5 Calibration security code operation 20

Figure 1-6 SECUr display 21

Figure 1-7 SEr.no display 22

Figure 1-8 rEF display 23

Figure 1-9 rEF display 28

Figure 2-1 Testing Fuse 1 36

Figure 2-2 Testing Fuse 2 37

Figure 2-3 Replacing Fuse 1 39

Figure 2-4 Replacing Fuse 2 40

Figure 2-5 Positions of Fuse 1 and Fuse 2 41