Introduction
1
Thank you for purchasing the HIOKI "Model 8870-20 Memory HiCorder."
This Measurement Guide consists of some basic application examples. Before using
the instrument, be sure to read the Instruction Manual carefully.
Introduction
Operation and Screen
Types (p. 2) Describes the screen types and an overview of the
operating keys
Measurement Procedure
(p. 4) Describes procedures from measurement prepara-
tion to analysis
Commercial Power Mains
Measurement (p. 6)
Shows the method for recording 220 V commercial
mains waveforms, and describes how to save data
after measurement.
To Monitor for Abnormal
Phenomena (p. 8)
Describes how to record abnormal phenomena such
as voltage drop like those that occur during electrical
outages as an example type of phenomena.
Also describes continuous monitoring using the trig-
ger function to record only particular phenomena,
and automatic saving while measuring.
To Measure Current (p. 10) Describes how to record current waveforms using a
clamp-on probe, and how to use the scaling function
to display current values.
Analysis (p. 12) View and calculate waveform measurement values
using the A/B cursors.
