7451A/7461A/7461P Digital Multimeter Operation Manual
4.2.1 Measurement Functions
4-9
Figure 4-6 AC Voltage Measurement (ACV and ACV(AC+DC))
4. Resistance measurement (2W, 4W, LP-2W, and LP-4W)
1. Press .
The resistance is measured by using the 2W or 4W which is set before this
measurement.
2. Press and .
The resistance is measured in low-power in which the measurement current is
reduced.
3. Press and to return to the 2W and 4W measurement.
4. Press .
The 2W and 4W are switched alternately.
NOTE: In the following measurement ranges, the LO terminal of 4W SENSE does
not recognize the voltage and operates as in 2W measurement.
7461A: 1000 k range or more in 4W, 100 k range or more in
LP-4W
7451A: 3000 k range or more in 4W, 300 k range or more in
LP-4W
Table 4-7 Measurement range
7461A/61P 7451A
Measurement method TrueRMS
Measurement range 5% or more of the range
Crest factor 5 3
1000Vpeak
AC700Vrms or less
2.2 10
7
VHz
500V or less
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