10 TEGAM WAY • GENEVA, OHIO 44041 440-466-6100 • FAX 440-466-6110 • www.tegam.com
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Section V– Maintenance and Servicing
Maintenance
Calibration of 1505A/2505A
The 1505A & 2505A should be calibrated periodically to maintain accuracy when using these standards.
The frequency and method of calibration can vary based on the customer’s requirement. TEGAM
maintains full capability to calibrate these standards. Contact TEGAM to discuss your specific needs or to
set up a return RMA to have your standard calibrated.
Care and Handling of Assemblies
To ensure accurate measurements and optimal performance of TEGAM products, the microwave coaxial
cable assemblies used in system and test setups must be properly used and maintained. Proper
connections, routine inspection of all cables, and cleaning of the connectors are extremely important
procedures which can prolong the longevity and accuracy of equipment.
Cable Inspection
Routinely check external cables for signs of cracked insulation, dents, twists, flattening, signs of jacket
abrasion, or other signs of abuse. Wrinkles in the jacket indicate that the minimum bend radius has been
exceeded. Most often, this occurs near the marker tubes and connectors.
Also inspect the connector interfaces for the following:
•
Bent pins (male).
•
Bent or missing tines (female).
•
Worn or chipped plating.
•
Damaged or displaced dielectric inserts.
•
Thread damage.
•
Folded or mushroomed outer interface rims.
•
Mushroomed pin shoulders (male) or tine ends
(female).
•
Score lines on pins and outer interface rims visible to the unaided eye.
•
Recessed or protruding pins.
It is advisable to clean the connectors prior to inspection to make subtle damage more apparent. If any of
the above is noted, replace the assembly before its further use results in equipment damage. Also inspect
the mating connectors for similar damage.
Inspect the connector interface for signs of debris.
Debris may be in the form of:
•
Plating chips or other metal particles.
•
Dust or dirt.
•
Oily films.
•
Other miscellaneous foreign particles.
Making Initial Connections
Exercise caution when mating cables. Poor connections lead to poor system performance. They can also
damage not only the cable assembly, but more significantly, front or rear panel connectors on the
equipment itself which may be more difficult to repair.
Aligning Connectors
Align the center lines of two connectors before actual mating. Male retaining nuts contain a small amount
of necessary play which may make it possible to mate the threads without the pins being properly aligned.
Pin misalignment can damage pins and dielectric inserts.
