Hioki DM7275 Series, Инструкция по эксплуатации

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170
Q&A (Frequently Asked Questions)
No. Issue Items to check Possible causes → Solutions See
2-2 Measured value
differ from
expected value. (A
negative value is
displayed.)
Scaling
function
ON The offset setting is not correct.
→ Turn scaling OFF , or reconfigure
the setting properly.
p. 82
Measurement cable connection Cable is not connected properly.
→ Check the connections.
p. 26
p. 31
See also No. 2-1.
NULL function
ON Zero point is shifted.
→ Set the NULL function
OFF
, or
reconfigure the settings properly.
p. 78
2-3 Measured value is
not displayed.
（ For more
information about
measurement
error displays, see
p. 46.)
Measured
value
NoCntct There is a break in the
measurement cable.
→ Replace the measurement
cables.
p. 3
Metal pins (probes) of the
measurement cable are worn or
cables are cut.
→ Replace the measurement
cables.
p. 3
The metal pins (probes) are not
in contact with the measurement
target.
→ Clean or replace the metal pins
(probes).
→ Increase the contact pressure.
p. 31
The measurement target is made of
a material such as conductive paint
or conductive rubber, resulting in a
high resistance value between the
HIGH and LOW terminals.
→ Set the contact function to
OFF
,
or use a smaller threshold.
p. 71
(When measuring enclosure
potential)
Capacitance between battery
electrode and enclosure is small.
→ Set the contact function to OFF ,
or use a smaller threshold.
p. 71
+OvrRng
−OvrRng
Measurement range does not cover
the object to be measured.
→ Change the range or set it to
auto-range.
p. 35
Nothing is displayed. No range is selected during auto-
range operation.
→ See No. 2-4.
-
2-4 No range is
selected during
auto-range
operation (no
appropriate range
is found).
Circuit to be measured Voltage is fluctuating.
→ Use a fixed range.
p. 35
2-5 The auto-hold
function is not
working (hold
operation is not
being canceled).
Measured
value
Not stabilizing. → See No. 2-1. p. 169
Does not change. Incorrect range.
→ Select an appropriate range or
use auto-range.
p. 35
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