KYOWA WGA-910A Series Instruction Manual page 140

9-6. LARGE NOISE
Probable causes are as follows.
Inductive Interference
Induction noise may be generated if an instrument having large leakage flux is near the WGA-910A.
The instrument is such as large motor, electrical transformer, ferroresonance type constant voltage device.
In addition, the induction noise may be also generated if the instrument is far from the WGA-910A.
Take countermeasures as follows.
・Set the WGA-910A away from the noise source.
・Use the shielded cable for the transducer cable and connect the shield wire to the E terminal of the [INPUT]
connector.
Interference due to electrical potential
Occurs when a measuring object has an electrical potential of DC or AC.
In this case, it is not necessarily to ground the WGA-910A but connect the measuring object and WGA-910A.
It should be noted that you cannot solve the trouble with a simple method if there is the inductive interference or if
the measuring object has electrical potential.
Recently, more instruments are placed together and every instrument affects each other as the noise source.
The contents we described may not be universally applicable in all situations as site conditions and environmental
factors may vary. Please take appropriate countermeasures against the noise that matches to the situation at the site.
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