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AMETEK CTS
6.
Maintenance
6.1.
General
The coupling network is built with passive components only. The coupling network of the DCD series is abso-
lutely maintenance free.
6.2.
Calibration and Verification
6.2.1.
Factory calibration
Every AMETEK CTS generator is entirely checked and calibrated as per international standard regulations be-
fore delivery. A calibration certificate is issued and delivered along with a list of the equipment used for the
calibration proving the traceability of the measuring equipment. All auxiliary equipment and accessories are
checked to our internal manufacturer guidelines.
The calibration certificate and the certificate of compliance (if available) show the date of calibration.
The AMETEK CTS equipment is calibrated in the factory and marked with a calibra-
tion mark. The used measuring instruments are traceable to the Swiss Federal Office
of Metrology.
The calibration date is marked. The validity of the calibration is to the responsibility
of the user's quality system. Neither the certificate of calibration nor the correspond-
ing label mark any due date for recalibration.
6.2.2.
Guideline to determine the calibration period of AMETEK CTS instrumentation
Our International Service Departments and our QA Manager are frequently asked about the calibration interval
of AMETEK CTS equipment.
AMETEK CTS doesn't know each customer's Quality Assurance policy, nor do we know how often the equip-
ment is used and what kind of tests is performed during the life cycle of test equipment. Only the customer
knows all the details and therefore the customer needs to specify the calibration interval for his test equipment.
In reply to all these questions we like to approach this issue as follows:
AMETEK CTS make use of a solid-state semiconductor switch technique to generate high voltage transients. A
precious advantage of this technique is the absolute lack of periodical maintenance effort. In consequence,
thereof a useful calibration period must be defined based on two criteria:
The first one is the customer's Quality Assurance Policy. Any existent internal regulation must be applied at
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highest priority. In the absence of such internal regulation the utilization rate of the test equipment must be
taken into consideration.
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Based on the experience and observation collected over the years AMETEK CTS recommends a calibra-
tion interval of 1 year for frequently used equipment. A 2-years calibration interval is considered sufficient
for rarely used test generators in order to assure proper performance and compliance to the standard speci-
fications.
6.2.3.
Calibration of Accessories made by passive components only
Passive components do not change their technical specification during storage. Consequently, the measured
values and the plots stay valid throughout the storage time. The date of shipment shall be considered as the
date of calibration.
6.2.4.
Periodically In-house verification
Please refer to the corresponding standard before carrying out a calibration or verification. The standard de-
scribes the procedure, the tolerances and the necessary auxiliary means. Suitable calibration adapters are
needed. To compare the verification results, AMETEK CTS suggests refers to the waveshape and values of the
original calibration certificate.
All calibrations and verifications are always done without mains supply voltage connected to the coupling net-
work input.
Operation Manual
Before starting the calibration or verification
remove the EUT Mains Supply
from the coupling network
V 1.00
CDN 117A series
Examples: Calibration mark
18 / 30
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