Technical data

Contents
U2741A USB Modular 5.5 Digits Digital Multimeter Service Guide XI
List of Tables
Table 1-1 DC accuracy ± 2
Table 1-2 AC accuracy for voltage 3
Table 1-3 Temperature coefficient for voltage 4
Table 1-4 AC accuracy for current 4
Table 1-5 Temperature coefficient for current 5
Table 1-6 Frequency accuracy 5
Table 1-7 Frequency sensitivity for AC voltage 5
Table 1-8 Temperature accuracy ± (% of reading + no. of least
significant digit) 6
Table 2-1 Recommended Test Equipment 10
Table 2-2 Zero offset verification test 16
Table 2-3 DC voltage gain verification 18
Table 2-4 DC current gain verification 19
Table 2-5 Ohms gain verification test 20
Table 2-6 Frequency gain verification test 21
Table 2-7 AC volts verification test error 22
Table 2-8 AC current verification test 23
Table 2-9 Optional AC voltage performance verification test 24
Table 2-10 Optional AC current performance verification test 25
Table 4-1 List of Replacement Parts 36