14.1 Troubleshooting
288
2-3 No measured
value is dis-
played.
Measured values Nothing is
shown.
Auto-ranging is not selecting a range.
See No. 2-4 below.
p.288
No measured
value is shown,
even if the mea-
surement leads
are shorted.
The fuse may have tripped.
Cycle the instrument's power and
perform the self-test to check
whether the fuse has tripped.
When using the multiplexer, if the
measured value is not displayed
after replacing the measurement
fuse, the multiplexer unit’s fuse
may have tripped. Have the Z3003
repaired.
p.44
2-4 Auto-ranging is
not selecting a
range.
(The range is not
appropriate.)
Measurement tar-
get
Transformer,
motor
Auto-ranging is not able to select a
range for measurement targets that
have high inductance.
Use a fixed range.
p.49
Noise may be affecting measure-
ment.
See Appendix 7(1)(2).
p.A19
2-5 It is impossible to
perform zero-
adjustment.
Measured values before zero-
adjustment exceed -1% to 50% of
each range full-scale, or a measure-
ment fault has occurred.
There is a problem with the wiring.
Repeat zero-adjustment with the
correct wiring. Since zero-adjust-
ment cannot be performed if the
resistance value is too high, for
example with a user-made cable,
work to minimize the wiring resis-
tance.
p.A7
2-6 The auto-hold
function is not
working (hold
operation is not
being canceled).
Measured values Are unstable. See No. 2-1 above, “Measured val-
ues are unstable.”
p.285
Do not change. An appropriate range has not been
selected.
Select an appropriate range or use
auto-ranging.
p.49
No Issue Items to check Possible causes Solutions See
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