Hioki LR8431, Instruction Manual

Page: 192 / 204

Appendix 10 Frequently Asked Questions
A
34
What is the timing difference
between CH1 and CH2? When the [Filter] is Off, the time dif-
ference between data on neighbor-
ing channels is about 780

s,
regardless of recording interval.
When the [Filter] is enabled (50 or
60 Hz), the time difference increases
with longer recording intervals.
How can I apply markers while
measuring for easy searching
later?
How can I search for alarm
event locations? Event marks can be applied by the
following methods.
• Press the on-screen [Make
Mark] button.
• Apply a signal to the EXT.TRIG
terminal
5.3, "Inserting Event
Marks (Search Func-
tion)" (p.88)
Question Remedial Action Reference page
Data Saving
Question Remedial Action Reference page
Can after-market CF cards be
used? Operation cannot be guaranteed.
Please use a Hioki-specified card to
avoid problems. 6.2, "Using a CF
Card/USB flash
drive" (p.93)
Can after-market USB flash
drives be used? They can be used, although for real-
time saving, we recommend using a
Hioki-specified CF card option for
data protection. Operation can only
be guaranteed for Hioki CF card op-
tions. Also, USB flash drive security
features such as fingerprint authen-
tication are not supported. Use a
USB flash drive whose continuous
current consumption does not ex-
ceed 300 mA (peak 500 mA). (The
peak value is displayed as "Max
Power" under the USB flash drive
self-test on the [System] screen.) 6.2, "Using a CF
Card/USB flash
drive" (p.93)
Can removable media be re-
placed while measuring?
Yes. Put the cursor on the [EJECT]
button at the lower right of the
screen, press ENTER, and remove
the media following the displayed
message.
"Replacing Remov-
able Storage During
Real-Time Saving"
(p.48)
How much recording space is
available? It depends on setting conditions
(number of channels and recording
interval).
About 327 days of recording is pos-
sible using 10 analog channels at 1
s recording interval to 1 GB media. "Appendix 6 Maxi-
mum Recordable
Time" (p. A11)