Features and Functions | 3 |
1 ms Peak Hold
The Peak Hold function allows the measurement of peak
voltage for analysis of components such as power
distribution transformers and power factor correction
capacitors. The peak voltage obtained can be used to deter-
mine the crest factor:
Crest factor = Peak value/True RMS value
1Press 
for more than 1 second to toggle 1 ms Peak Hold mode ON / OFF.
2Press 
to scroll through maximum and minimum
peak readings. 
MAX indicates the maximum peak,
while 
MIN indicates the minimum peak.
N O T E | • If the reading is "OL", press | to change the measuring range and | |
to | |||
| |||
•If you need to re-start the peak recording, press 
.
3Press and hold 
or to exit this mode.
for more than 1 second
4According to the measurements shown in Figure 3- 6 on page 60, the crest Factor will be 2.5048/1.768 =1.416.
Agilent U1251A/U1252A User’s and Service Guide | 59 |
