Ametek PCD 8 S Series, Manual

Page: 29 / 53

AMETEK CTS PCD 8 s-series
Operating Manual V 2.02 29 / 53
6. Maintenance and calibration
6.1. General
The coupling network is maintenance-free by using.
6.2. Calibration and Verification
6.2.1. Factory calibration
Every AMETEK CTS generator is entirely checked and calibrated as per international standard regulations before
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 are calibrated in the factory and marked with a
calibration 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
corresponding label marks any due date for re-calibration.
Example: Calibration mark
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 does not know each cus
tomer’s Quality Assurance Policy, nor do we know how often the
equipment 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 has to be applied at
highest priority. In the absence of such internal regulation the utilization rate of the test equipment has to be
taken into consideration.
- Based on the experience and observation collected over the years
AMETEK CTS recommends a calibration
interval of 1 year for frequently used equipment. A 2-years calibration interval is considered sufficient for
rarely used test generators to assure proper performance and compliance to the standard specifications.
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
describes the procedure, the tolerances, and the necessary auxiliary means. Suitable calibration adapters are
needed. To compare the verification results, AMETEK CTS suggests referring to the wave shape and values of
the original calibration certificate.
All calibrations and verifications are always done without mains supply voltage connected to the coupling network
input.
Before starting the calibration or verification
remove the EUT Mains Supply
from the generator and from the coupling network