Hioki BT3564, Инструкция по эксплуатации, Страница: 180 / 210

10.1 Troubleshooting
174
Measured value is
unstable. Are you using a two-terminal con-
nection (is one probe pin in contact
with each of the positive and nega-
tive electrodes)? When using a two-terminal connection, the
pins' contact resistance may affect the resis-
tance value, resulting in unstable readings.
Use a four-terminal connection (including
contact pins).
See "Appendix 1 Precautions for Making
Custom Test Leads"(

p.A1)
Are there any metallic objects near
the probes (near the battery being
measured)? When there is a metallic object near the bat-
tery being measured and probes, measured
values may fluctuate as a result of induction
caused by eddy currents.
• Make measurements as far away from me-
tallic objects as possible.
• Twist the cable and minimize the area of the
fork.
See "Appendix 1 Precautions for Making
Custom Test Leads"(

p.A1)
Is there signal noise? • Twist cables and minimize the area of the
fork (loops act as antennas and pick up
noise).
• Shield and ground cables.
See "Appendix 1 Precautions for Making
Custom Test Leads"(

p.A1)
Are you using multiple Model
BT3564 instruments to make simul-
taneous measurements? Interference between measurement signals
may cause measured values to vary.
• Take care to keep probes' forked loops from
overlapping (at the battery being measured).
See "Appendix 1 Precautions for Making
Custom Test Leads"(

p.A1)
• Avoid stacking the instruments on top of
each other.
Are you taking measurements right
in front of the instruments? Induced signals from the instruments' circuits
can be picked up as noise, causing measured
values to fluctuate. Take measurements at
least 20 cm away from the instruments.
Symptom Check Items Countermeasure
HIOKI BT3564A961-02