7451A/7461A/7461P Digital Multimeter Operation Manual
4.2 Basic Operation
4-6
4.2
Basic Operation
When the power is turned on, this instrument automatically performs the self-test and then proceeds to the
measurement sequence.
For more information on the detail of the self-test, refer to Chapter 8, “MAINTENANCE.”
When the self-test is complete correctly, this instrument enters into the measurement state. If any abnormal
error occurs, the instrument enters into the error display state. Check the error number by operating MENU
and exit from here.
For more information on navigating the menus, refer to Section 5.1, “Menu.”
This instrument saves the set conditions when the power is turned off. The factory defaults are used in the
descriptions in Chapter 4. For more information on how to initialize this instrument, refer to Chapter 8.
4.2.1
Measurement Functions
1. DC voltage measurement (DCV)
Press .
Figure 4-4 DC Voltage Measurement (DCV)
Table 4-1 Maximum Allowable Applied Voltage (DCV)
Between V and COM terminals
1000 Vpeak
Between COM terminal and chassis
500 V
Table 4-2 Range and Input impedance (DCV)
Range
Input impedance
7461A/61P
7451A
100 mV
10 V
300 mV, 3000 mV
Selecting Hi-Z or 10 M
100 V, 1000 V
30 V
1000 V
10 M
DCV
1000 V or less
500 V or less
