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Hioki LR8400-20
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Appendix 9 Frequently Asked Questions
A22
How to display numerical data
values?
Press WAVE/DATA repeatedly to cycle
through the Waveform (only), Waveform
+ Numerical Values, and Numerical Val-
ues (only) displays.
Numerical values can be displayed in a
large
font on the enlarged numerical dis-
play.
Numerical values at specific locations
ca
n be displayed using A/B cursors.
"Waveform/Numerical
Screens" (p .19)
"Viewing Input Signals
as Numerical Values"
(p .87)
"Displaying Cursor Val-
ues" (p .91)
What happens to pulse integra-
tion when there are more than one
million
pulses?
The counter saturates at 1,073,741,823
counts. If you expect to exceed this
count, we recommend measuring with
the Integration Mode ([Count]) set to In-
stantaneous ([Inst]), an
d summing later
with a spreadsheet program.
"Integration (Count)
Measurement Set-
tings" (p .62)
What is the timing difference be-
tween CH1 and CH2?
When the [Filter] is Off, the time differ-
ence between data on neighboring
ch
annels is about 500 s, regardless of
recording interval. When the [Filter] is
enabled (50 or 60 Hz), the time differ-
ence increases with longer recording in-
tervals.
"Appendix 1 Scan Tim-
ing" (p. A1)
How can I apply markers while
measuring for easy searching lat-
er? How can I search for alarm
even
t locations?
Event marks can be applied by the fol-
lowing methods.
Press ST
ART while measuring
Press the on-screen [Make Mar
k]
button.
Apply a signal to the EXT.TRIG termi-
nal
When a warning occurs
"4.3 Marking Wave-
forms and Searching
Marks (Search Func-
tion)" (p. 93)
Multiple temperature measure-
ment values are scattered, even at
th
e same location. Is it possible to
match the value measured on
CH1?
The Offset Cancel function is conve-
nient for this.
The value measured on UNIT1, CH1 is
used as the
scaling (offset) value for
other channels.
"3.6 Scaling Settings
(as needed)" (p. 69)
Is it possible to signal an alarm on
ALM1 when the temperature on
CH1 exceeds 40
C, and on ALM2
when it exceeds 50
C?
Yes. Four alarm channels are provided.
Multiple alarms can be assigned to the
same input channel.
"5.2 Alarm Output" (p.
109)
Question
Remedial Action
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