Measurement Guide
MR8847
MEMORY HiCORDER
Read first.
Offers an introduction to the Memory
HiCorder's basic measuring method for first
time users.
May 2011 Edition 1 MR8847A983-00 11-05H
Introduction
Introduction
Thank you for purchasing the HIOKI "Model MR8847 Memory HiCorder."
This Measurement Guide consists of some basic application examples. Before
using the instrument, be sure to read the Instruction Manual carefully.
The following do cumen ts are provid ed with th is in strumen t. Refe r to them as appr opriate f or yo ur app lication.
Document Description
1
Measurement Guide
1
(This document)
Instruction Manual
2
Contents
Screen structure and
operation overview
Measurement Preparations
Measurement Procedure
Measure the c ommercial power supply
Read first.
Offers an introduction to the Memory HiCorder's basic measuring method for first
time users.
Contains explana tion and i nstructions re garding the instrument' s operatin g method and functions.
The following explains the screen structure and overview of the
operation keys of the main instrumen t.
The following explains the things to be done before carrying out
measurement.
The following explains the flow from pre-measurement check to
analysis/saving/printing.
The following explains how to record waveforms of a commercial power supply of 100 V.
The following explains how to save the data.
( p.2)
( p.4)
( p.6)
( p.8)
Monitor abnormal occurrences
Analyze
Print
Convenient functions
Others
The following explains how to record a voltage dip caused by a
special occurrence such as a black out.
Using the trigger function to carry out constant monitoring, only
the abnormal occurrence can be recorded.
The following explains the method to automatically save data.
Waveform measurement value can be viewed or calculated using the A/B cursor.
The following explains how to display the measured waveform
without overlapping.
The following explains the printing method. ( p.17)
The following explains the auto range function, pre-trigger and
probe compensation.
The following are explanations for the screen, time axis and
sampling, record length setting, voltage axis and optical resolution, and file transfer speed.
( p.10)
( p.12)
( p.19)
( p.21)
2
Waveform screen
Screen to set measurement methods, calculations for waveforms, and etc.
File screen
Status screen
Screen to set environment, save file, set
printing, set communication, and initialize
data.
System screen
The screen to set the various Channe l
Scaling Comments.
Channel screen
Settings window
Trigger settings
window
Channel settings
window
Screen to view waveforms. Screen to view data files in the media
(CF card, HDD, USB, internal memory).
Window to set details for
the Analog/Logic Channel.
Window to set details for
the trigger.
Waveform screen can
be displayed.
Sheet tub
Shows names of sheets
that can be selected.
Screen structure and operation overview
Screen structure and operat ion overview
Screen structure In the sheet tab screen, the sheet can be changed by pressing the key.
Operating Keys
ABCSR key
Displays the A/B cursor settings
window.
START key
Starts measurements
The green LED at the upper is lit
during measurement.
Inner
: Jog
Outer: Shuttle
Scrolls waveforms
DISP key
Displays the Waveform screen.
STATUS key
Displays the Status screen.
FILE key
Displays the File screen.
F key
Select setting items
PRINT key
Prints waveforms
SAVE key
Saves data to storage media.
The LED to the right of the key lights up in blue.
ESC key
Cancels an operation.
Removes the displayed dialog and
window
CURSOR key
Moves the cursor up, down, left and
right on the screen.
KEY LOCK:
Press and hold the right and left
CURSOR keys for three seconds to
disable key operations.
To cancel key-lock, hold the keys
again for three seconds.
TRIG.SET key
Displays the trigger settings window
on the Waveform screen.
CH.SET key
Displays the chan nel settings window
on the Waveform screen.
SYSTEM key
Displays the System screen.
CHAN key
Displays the Channel screen.
Manual trigger key
Issues a manual trigger event.
WAVE key
Assigns the Jog & Shuttle knobs to
waveform scrolling.
FEED key
Feeds paper
COPY key
Prints a hard copy of the
display screen
HELP key
Opens help
information
AUTO key
Starts auto-range
measurement
STOP key
Stops measurements
1 press: Measurement stops a fter the
set recording length
2 presses:Immediate stop
Move the setting cursor to the item.
To change the setting content
Select
Settings cursor
The current cursor location is
indicated by flashing.
3
Screen structure and operation overview
4
At least 5 cm
All at least 5 cm
Install the instrument
To prevent overheating, be sure to leave the specified clearances around the unit.
Set the items necessary to the device
Connect the Probes
and Cords
Insert the USB
memory stick
Insert the CF Ca rd.
Set the recording paper
Connect the power cord
Right side
Left side
Front
Refer to the instruction
manual for details.
1
2
2
3
4
Measurement Preparations
Measurement Preparations
5
Supply the power
Power On
Right Side
Setting the clock
Carry out setting in the [Init] sheet. The date and time indication is shown
at the top right of the screen.
Perform zero-adjust
This procedure compensates for input module differences and sets the reference
potential of the instrument to 0 V.
Carry out setting in the [Unit List] sheet.
For best measurement precision, a warm-up period of about 30 minutes after power-on is recommended.
[Exec Zero-A djust] can still be selected in the channel settings window ([Analog]
sheet).
(Press the DISP key (Waveform screen) → press the CH.SET key (Channel setting s
window))
Point
1. Move the cursor to this position.
2. Select [Exec Zero-Adjust].
Measurement Preparations
6
Perform the inspection before measurement
Please read “Pre-Measurement Inspection” in the instruction manual.
Connect to the measurement point
Set the measurement conditions
Carry out setting in the Waveform screen.
• Measurement function
• Timebase
• Recording length ([Shot])
Carry out settings in the Channel settings window ([Analog] sheet).
• Vertical axis (Voltage axis) range
Carry out settings other than the above
mentioned, when necessar y.
Start or stop measurement
Start Measurement Stop Measurement
Measurement Procedure
Measurement Procedure
Before measuring, please read “Operating Precautions” in the instruction manual.
Analyze, save and print
Scroll and view the waveform.
Waveform display can be changed.
(You can zoom in or out)
Save data.
Data can be autom atically sav ed under the
pre-set saving conditions.
View saved data.
Data can be loaded, and file can be deleted and
copied.
Print the recorded waveform.
Analyze
Save
Print
7
Measurement Procedure
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