EuroWire November 2016

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Feature
Testing and measuring
November 2016 53
According to European standards,
openly operated measuring and
testing equipment has to be checked
regularly.
Therefore, spark testers are tested with
regard to the accuracy of the supplied
high-voltage, the short circuit current
and function (sensitivity).
The Sikora Spark 6030 HF spark tester
offers (optionally) a three-step self-test
and calibration system including the
Sikora App for mobile monitoring and
analysis of the measuring results.
As each test probe has to be calibrated,
the testing module has to be
controlled regularly.
To support this process, the company
has further developed the module of
the Spark 6030 HF.
This includes the easy-to-change module that combines all
testing functions and which can easily be exchanged from an
additional opening in the housing of the Spark 6030 HF.
In order to meet the requirements of the ISO 9001 standards,
Sikora recommends a yearly calibration of the spark tester by
simply exchanging the test module.
Due to the fact that all functions are directly mounted at the
module, the complete module is exchanged for calibration.
Therefore, a submission of the complete device to Sikora as well
as the assignment of a service engineer is not necessary.
As for the previous version of the module, the sensitivity and
short circuit current tests are generated. For the sensitivity test,
20 discharges are simulated in 20 seconds.
All of these discharges have to be completely detected by the
spark tester.
For the short circuit current test, an error caused by the contact
of a user and the bead chain electrode during the operation is
simulated.
Here, a defined value must not be exceeded in order to
guarantee the safety of the user. The calibration module
measures continuously the accuracy of the testing voltage.
The standard for spark testers requests an accuracy of ±5%. The
test is successful if this criterion is met.
Sikora AG – Germany
Website:
Spark tester with removable
self-test module
▲ ▲ The Spark 6030 HF spark tester with removable self-test and calibration module