Preventive Maintenance
6
E5505A Installation Guide
73
•
Inspect the connectors before connection; look for dirt, nicks, and other
signs of damage or wear. A bad connector can ruin the good connector
instantly.
•
Clean dirty connectors. Dirt and foreign matter can cause poor
electrical connections and may damage the connector.
•
Minimize the number of times you bend cables.
•
Never bend a cable at a sharp angle.
•
Do not bend cables near the connectors.
•
If any of the cables will be flexed repeatedly, buy a back- up cable. This
will allow immediate replacement and will minimize system down time.
Before connecting the cables to any device:
•
Check all connectors for wear or dirt.
•
When making the connection, torque the connector to the proper value.
Proper Connector Torque
•
Provides more accurate measurements
•
Keeps moisture out of the connectors
•
Eliminates radio frequency interference (RFI) from affecting your
measurements
The torque required depends on the type of connector. Refer to
.
Do not overtighten the connector.
Never exceed the recommended torque when attaching cables.
Connector Wear and Damage
Look for metal particles from the connector threads and other signs of
wear (such as discoloration or roughness). Visible wear can affect
measurement accuracy and repeatability. Discard or repair any device with
a damaged connector. A bad connector can ruin a good connector on the
first mating. A magnifying glass or jeweler’s loupe is useful during
inspection.
Table 13
Proper Connector Torque
Connector
Torque cm-kg
Torque N-cm
Torque in-lbs
Wrench P/N
Type-N
52
508
45
hand tighten
3.5 mm
9.2
90
8
8720-1765
SMA
5.7
56
5
8710-1582
Summary of Contents for E5505A
Page 18: ...18 E5505A Installation Guide 1 General Information ...
Page 22: ...22 E5505A Installation Guide 2 Flat Panel Display ...
Page 30: ...30 E5505A Installation Guide 3 System Interconnections ...
Page 84: ...84 E5505A Installation Guide 6 Preventive Maintenance ...
Page 96: ...96 E5505A Installation Guide A Service Support and Safety Information ...