Maintenance - KYOWA WGA-680A Series Instruction Manual

MEMO
Potential interference
Potential interference occurs when the target to be measured has a DC/AC potential.
At this time, grounding the product is not necessarily a good thing. It may be appropriate to connect the
target to be measured and product.
If there is induction noise or if the target to be measured has potential, it is rare to be solved by a simple
method.
Especially nowadays, the number of electrical devices that are used together in the measuring environment
are increasing resulting to affect with each other as the noise cause.
The above mentioned countermeasures are mere examples. Fully consider the operational environment and
take appropriate measured to obtain the most preferable results.

7. MAINTENANCE

For the product, the following items should be serviced for scheduled maintenance.
Maintenance service should be performed at the intervals specified below.
(1) Calibration of apparatus
An annual maintenance inspection is recommended to ensure the operation and measuring accuracy of the
product.
Must be returned to KYOWA for the scheduled maintenance inspection.
(2) Replacement of consumable parts
The aluminum electrolytic capacitor is a consumable item. The service life, depending on the frequency of
use and temperature, is approximately 5 years under the usage at 25 .
We recommend you to overhaul a product every 5 years.
The above figure is only a rough indication. We do not promise or guarantee that the product is error-free or
will be repaired at no additional cost in the above period.
To operate the product normally, daily/periodic inspections is recommended.
We shall not be responsible for any failure by incorrect usage against the specifications and safety precaution
within the warranty period.
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