Technical data
U1253B User’s and Service Guide xvii
List of Tables
Tab l e 1- 1 Display annunciators 9
Tab l e 1- 2 Keypad functions 11
Tab l e 1- 3 Input terminal for different functions 15
Tab l e 1- 4 Range scale value 27
Tab l e 2- 1 Math operations for different measurement
functions 30
Tab l e 2- 2 Description for dual display combination 42
Tab l e 2- 3 Setup menu and communications parameters 43
Tab l e 3- 1 Typical combinations and applications when using dual
display 50
Tab l e 4- 1 Recommended test equipments 59
Tab l e 4- 2 DC voltage verification test 62
Tab l e 4- 3 DC current verification test 63
Tab l e 4- 4 2-wire
Ω verification test 64
Tab l e 4- 5 Diode verification test 65
Tab l e 4- 6 Frequency verification test 65
Tab l e 4- 7 AC volts verification test 66
Tab l e 4- 8 AC current verification test 67
Tab l e 5- 1 Type of supplied fuse (according to country of
destination) 73
Tab l e 5- 2 Type of current input fuse 74
Tab l e 6- 1 DCV resolution, full scale reading and accuracy [±(% of
reading + count)] 84
Tab l e 6- 2 ACV resolution and full scale reading [±(% of reading +
count)] 85
Tab l e 6- 3 ACI resolution, full scale reading, and burden voltage
[±(% of reading + count)] 86
Tab l e 6- 4 Frequency resolution and accuracy [± (% of reading +
count)] 87
Tab l e 6- 5 Sensitivity for voltage measurement 87
Tab l e 6- 6 Sensitivity for current measurement 87
Tab l e 6- 7 Range and accuracy (dB) 88
Tab l e 6- 8 Full scale display update rate 89
Tab l e 6- 9 Measurement specifications 89
Tab l e 6- 1 0 Reading rates (reading/second (approx)) 96
Tab l e 6- 1 1 General Characteristics 97