7481/7482 Digital Multimeter Operation Manual
TABLE OF CONTENTS
C-2
3.5.3 Input Connection ................................................................................................................ 3-7
3.5.4 Measurement Condition Setting ......................................................................................... 3-8
3.6 Resistance Measurement ............................................................................................................ 3-12
3.6.1 Range Configuration .......................................................................................................... 3-12
3.6.2 Maximum Allowable Input Voltage .................................................................................. 3-12
3.6.3 2-Wire Resistance Measurement (2 WΩ) .......................................................................... 3-13
3.6.4 4-Wire Resistance Measurement (4 WΩ) .......................................................................... 3-13
3.6.5 Resistance Measurement Condition Setting ...................................................................... 3-14
3.7 DC Current Measurement (DCI) ................................................................................................ 3-21
3.7.1 Range Configuration .......................................................................................................... 3-21
3.7.2 Input Connection ................................................................................................................ 3-21
3.7.3 Measurement Condition Setting ......................................................................................... 3-22
3.8 AC Voltage Measurement (ACV) (7482 only) .......................................................................... 3-23
3.8.1 Range Configuration .......................................................................................................... 3-23
3.8.2 Maximum Allowable Input Voltage ................................................................................. 3-23
3.8.3 Input Connection ................................................................................................................ 3-24
3.8.4 Measurement Condition Setting ......................................................................................... 3-24
3.9 AC Current Measurement (ACI) (7482 Only) ........................................................................... 3-28
3.9.1 Range Configuration .......................................................................................................... 3-28
3.9.2 Input Connection ................................................................................................................ 3-28
3.9.3 Measurement Condition Setting ......................................................................................... 3-29
3.10 Frequency/Period Measurement (FREQ/PERIOD) (7482 only) ............................................... 3-33
3.10.1 Input Connection ................................................................................................................ 3-33
3.10.2 Selection between Frequency Measurement and Period Measurement ............................. 3-33
3.10.3 Measurement Condition Setting ......................................................................................... 3-34
3.11 Range Setting ............................................................................................................................. 3-40
3.11.1 When in Auto-Range State ................................................................................................3-40
3.11.2 When in Manual-Range State ............................................................................................ 3-40
3.12 Integration Time/Display Digits Setting .................................................................................... 3-43
3.12.1 Integration Time ................................................................................................................. 3-43
3.12.2 Display Digits .................................................................................................................... 3-45
3.13 Auto-Zero ................................................................................................................................... 3-47
3.14 NULL ......................................................................................................................................... 3-48
3.15 Errors .......................................................................................................................................... 3-50
3.15.1 Panel Display ..................................................................................................................... 3-50
3.15.2 Remote Display .................................................................................................................. 3-50
3.15.3 Error Read-Out from Panel ................................................................................................ 3-51
3.15.4 Error Read-Out by Remote Output .................................................................................... 3-51
3.16 Over-Input Voltage Detection (Alarm) ......................................................................................3-52
3.16.1 Alarm Conditions ............................................................................................................... 3-52
3.16.2 Precautions in Case of Alarm ............................................................................................. 3-53
3.17 Event History ............................................................................................................................. 3-53
3.17.1 Read-Out ............................................................................................................................ 3-54
4. MENU AND FUNCTIONS ............................................................................................ 4-1
4.1 Menu .......................................................................................................................................... 4-1
4.1.1 How to Navigate Menus ....................................................................................................4-1
4.1.2 Menu List ........................................................................................................................... 4-3
4.2 Measurement Function ............................................................................................................... 4-9
4.2.1 DC Voltage Measurement (DCV) ...................................................................................... 4-9
