- 45 -
Ｎｏ．
Problem
Checking point
Solution
５
Indication is not stable
→It is sometimes displayed
smaller than a real value.
↓
→It is sometimes displayed
more greatly than a real
value.
↓
↓
↓
↓
↓
↓
↓
→Because the movement of
the measurement thing
fluctuates, the signal of
the sensor sways
→Detection error of the sensor.
check the accuracy of the
sensor when there is little
quantity of detection
→Noise countermeasure
（Refet to P.43）
→When it is caused by the
chattering such as relays,
Please attach a capacitor
to the sensor input terminal.
→Lengthen sampling time
（Refet to P.26）
When it still does not
resume normal status,
have it serviced.
６
Indication goes out.
An indication level
becomes than double.
→Influence of the spark noise
with a relay or the
electromagnetic valve
→Noise countermeasure
（Refet to P.43）
７
Other problems
→Have it serviced.
Содержание SP-556 series
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