31
IM 701450-61E
Explanation
To perform history search using power analysis parameters, you must turn ON the
power analysis function on the applicable channels. For the setup procedure, see
section 3 in this manual.
Note
To make correct measurements and computation, it is recommended that the difference in
the transfer time of the analyzed signals be corrected (deskewed). For the setup procedure,
see section 4 in this manual.
The addition of the power supply analysis function (/G4 option) allows history search
using power analysis parameters (for details on their derivation, see section 5 in this
manual) as with standard measurement parameters (waveform parameters). For details
on the standard function and procedural explanations, see section 10.3 in the
DL7440/
DL7480 User’s Manual IM701450-01E
. The sections that differ from the standard
function are described below.
Search Target Waveform and Search Measurement Parameter
The selectable parameters vary depending on whether power analysis is enabled on the
selected search target waveform as indicated below.
• CH1, CH3, and CH5 (CH5 Only Applies to the DL7480) When Power Analysis Is
Specified on the Search Target Waveform
Power analysis parameters:
For details on how to determine each parameter, section 5 in this manual.
UP-P, U+pk, U-pk, Udc, Urms, Uac, Umn, Urmn, S, P, Q, Z,
λ
, Wp, Wp+, and Wp-
Standard measurement parameters:
For details on how to determine each parameter, section 10.6 in the
DL7440/DL7480 User’s Manual
.
+OShot, -OShot, Freq, Period, Rise, Fall, +Width, -Width, Duty, Burst1, Burst2, Pulse, Delay
(delay between waveforms), High, Low, AvgFreq, AvgPeriod, Int1TY, Int2TY, Int1XY, and Int2XY
*
For CH5, Int1XY and Int2XY are not available.
• CH2, CH4, and CH6 (CH6 only applies to the DL7480) When Power Analysis Is
Specified on the Search Target Waveform
Power analysis parameters:
For details on how to determine each parameter, section 5 in this manual.
IP-P, I+pk, I-pk, Idc, Irms, Iac, Imn, Irmn, q, q+, q-, and I
2
t
Standard measurement parameters:
For details on how to determine each parameter, section 10.6 in the
DL7440/DL7480 User’s Manual
.
+OShot, -OShot, Freq, Period, Rise, Fall, +Width, -Width, Duty, Burst1, Burst2, Pulse, Delay
(delay between waveforms), High, Low, AvgFreq, AvgPeriod, Int1TY, and Int2TY
• CH7, CH8, Math1, Math2 and CH1 to CH6 (CH5 to CH8 only apply to the DL7480)
When Power Analysis Is Not Specified on the Search Target Waveform
Standard measurement parameters:
For details on how to determine each parameter, section 10.6 in the
DL7440/DL7480 User’s Manual
.
P-P, Max, Min, Avg, Rms, Sdev, High, Low, +OShot, -OShot, Freq, Period, Rise, Fall, +Width, -
Width, Duty, Burst1, Burst2, Pulse, Delay (delay between waveforms), AvgFreq, AvgPeriod,
Int1TY, Int2TY, Int1XY, and Int2XY
*
For CH5 to CH8, Int1XY and Int2XY are not available.
Note
You cannot perform history search on computed waveforms Math1 or Math2 that are set to
waveform computation of harmonics or whose trend is displayed.
9 Performing History Search Using Measured Values of Power Analysis Parameters
