Quick Start Guide

4.4 Actual Measurement and Analysis
54
This example uses an analog input module and connection cable to illustrate the basic measurement process
of recording and analyzing an anomalous waveform. Settings and measurement procedures differ according
to the specific application, as described in the Input Module Guide, the Instruction Manual and the Analysis
Supplement .
This description presumes that settings are at their factory default values. If the instrument has been used
before, or if you suspect that settings are not at their factory default values, reinitialize the instrument before
proceeding.
See "12.3.2 Initializing Waveform Data", "12.3.3 Initializing System Settings (System Reset)", "Appendix 2.1 List of
Default Settings" in the Instruction Manual
Measurement Example Overview
Record voltage sag on a 240 V, 60 Hz AC line. When the anomaly occurs, data is automati-
cally saved to a PC Card for analysis.
1 Make Basic Settings
Make the basic settings required for measurement such as measurement configuration (recording speed
[Timebase] or recording time [Shot]) and input channel selection.
2 Make settings to record the specified waveform anomaly (trigger criteria settings)
Make appropriate trigger settings to acquire the desired waveform data.
(Default settings are fine for continuously recording waveforms)
3 Make settings to save recording data to storage media
To save automatically while measuring, enable Auto Save before starting measurement. After measuring,
data remaining in the instrument's internal memory can be saved manually.
(Printing works the same way)
4 Start measurement, and analyze recorded data
After measuring, you can analyze the data, and save or print it as occasion demands.
4.4 Actual Measurement and Analysis
Setting required for this measurement:
*1. Unit (module) and channel number to use
*2. Trigger settings are not needed to only observe
fluctuations of the mains voltage.
Settings
Screen
Setting Item Setting Value
(Function) MEM (Memory)
Status Timebase 5 ms/div
Shot (Recording
length)
50 div
Channel Unit, Ch Unit 1, Ch 1*
1
Mode Voltage
Range 20 V/div
Position 50 [%] (default setting)
Mag (Magnification) x1/2
Trigger*
2
Trigger Mode Repeat
Pre-Trigger 10%
Type Drop (Voltage Sag)
Level 280 V (RMS 197.99 V)
Freq (Frequency) 60 Hz
Save Auto Save On
Save in (PC Card folder)
240 V AC
Load
Required equipment:
•This instrument
• Grounded power cord (2-conductor + ground)
• Model 8936 Analog Unit ............1
• Model 9198 Connection Cord ...1
• PC Card
• Recording Paper
In this case, the Model 8936 Analog
Unit is installed as Unit 1 in the Model
8860, so the measurement proce-
dure describes connection of the
Model 9198 Connection Cord to Ch
1.
CH1
UNIT 1
CH2
234
8936
9198
H
L
Verifying Before Measurement
Input Module Compartment