Hioki DM7275 Series - Q&A (Frequently Asked Questions)

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Q&A (Frequently Asked Questions)
14.1 Q&A(FrequentlyAskedQuestions)
• If no measured value is displayed even when the metal pins of the measurement cable are
shorted together, internal damage may have occurred. Contact your authorized Hioki distributor
or reseller.
• If the instrument seems to be malfunctioning, check this section and then contact your authorized
Hioki distributor or reseller.
Troubleshooting contents
“1. General issues” (p. 168)
“2. Measurements” (p. 169)
“3. Communications” (p. 171)
“4. EXT I/O” (p. 173)
“Frequently Asked Questions for External Control (EXT I/O)” (p. 175)
If unable to resolve the issue, please contact your authorized Hioki distributor or reseller.
1.Generalissues
No. Issue Itemstocheck Possiblecauses→Solutions See
1-1 The instrument
cannot be turned
ON. (The display
is blank.)
Color of the
start button
Green The screen may be too dark.
→ Adjust the screen brightness.
p. 89
Red The instrument is in the halt state.
→ Push the start button.
p. 28
Does not light up
(Light is OFF)
The instrument is not receiving
power.
→ Check the continuity of the power
cord.
→ Verify that the circuit breaker has
not tripped.
→ Turn ON the main power switch
(at the back of the instrument).
p. 28
The supply voltage or frequency is
not correct.
→ Check the power rating (100 V to
240 V AC, 50 Hz/60 Hz).
-
1-2 Key and touch
panel cannot be
operated.
Icon indication KEY icon indication The key has been locked.
→ Cancel the key lock.
→ Turn OFF the EXT I/O KEY_
LOCK signal.
p. 87
p. 129
REMOTE icon
indication
The instrument is in the remote
state.
→ Touch the LOCAL key to cancel
the remote state.
CD*
1-3 Comparator/BIN
judgment results
are not displayed
on the screen.
Measured
value
Displayed The comparator function and BIN
function are OFF.
→ Set these functions to ON.
p. 51
p. 57
Not displayed
(NoCntct or
−−−−−−−)
Judgment is not made if there is a
contact error or if a measurement
has not been done.
p. 46
1-4 There is no sound
during operations.
Beep setting OFF The function is OFF.
→ Set the function to ON.
p. 88
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