Technical data

Agilent U1251B/U1252B User’s and Service Guide XI
List of Tables
Ta b l e 1 - 1 Rotary switch description and functions 8
Ta b l e 1 - 2 Keypad descriptions and functions 9
Ta b l e 1 - 3 General display symbols 12
Ta b l e 1 - 4 Primary display symbols 13
Ta b l e 1 - 5 Secondary display symbols 14
Ta b l e 1 - 6 Analog bar range and counts 15
Ta b l e 1 - 7 Selecting display with the Hz button 16
Ta b l e 1 - 8 Selecting display with the Dual button 18
Ta b l e 1 - 9 Selecting display with the Shift button 20
Ta b l e 1 - 1 0 Terminal connections for different measuring
functions 22
Ta b l e 2 - 1 Numerical steps descriptions 24
Ta b l e 2 - 2 Percentage scale and measurement range 30
Ta b l e 2 - 3 Audible continuity measurement range 37
Ta b l e 4 - 1 Available setting options in Setup mode 77
Ta b l e 4 - 2 Filter defaults 100
Ta b l e 5 - 1 Battery voltage and corresponding percentage of charg-
es in standby and charging modes 106
Ta b l e 5 - 2 Error messages 108
Ta b l e 5 - 3 Measurement readings for fuse checking 113
Ta b l e 5 - 4 Fuse specifications 115
Ta b l e 5 - 5 Basic troubleshooting procedures 116
Ta b l e 6 - 1 Recommended Test Equipment 122
Ta b l e 6 - 2 Verification Test 129
Ta b l e 6 - 3 Valid adjustment input values 142
Ta b l e 6 - 4 Adjustment table 145
Ta b l e 6 - 5 Calibration error codes and their respective
meanings 151
Ta b l e 7 - 1 DC Accuracy ± (% of reading + Number of Least Signifi-
cant Digit) 158
Ta b l e 7 - 2 U1251B accuracy specifications ± (% of reading + num-
ber of LSD) for true RMS AC voltage 161
Ta b l e 7 - 3 U1251B accuracy specifications ± (% of reading + num-
ber of LSD) for true RMS AC current 161
Ta b l e 7 - 4 U1252B accuracy specifications ± (% of reading + num-
ber of LSD) for true RMS AC voltage 162