Keysight Technologies M1749A, Руководство по началу работы, Страница: 15 / 41

Getting Started Guide 15
Safety & Environmental Information
Instrument Maintenance
Instrument Maintenance
Cleaning the Instrument
Connector Care
Threaded connectors can be damaged when cables are connected to them,
particularly if they are over-tightened (this could break the signal path entirely,
making the M1749A non-functional).
Factory-installed semi-rigid jumper cables between connectors should be left
permanently in place.
Because connectors can become defective due to wear during normal use, all
connectors should be inspected and maintained to maximize their service life.
Inspect the mating surface each time a connection is made.
Metal particles from connector threads often find their way onto the mating
surface when a connection is made or disconnected. Clean dirt and
contamination from the connector mating surface and threads.
Disconnect the M1749A from all cables before cleaning. Use a dry cloth or one
slightly dampened with water to clean the external case parts. Do not attempt
to clean internally.
When attaching cables to threaded connectors, use a torque wrench to apply
the proper torque, as described in the table below.
Connector Type Torque Wrench
Part Number
Wrench
Opening
Torque Setting
3.5 mm, 2.92 mm,
2.4 mm, 1.85 mm
8710-1765 5/16 in 90 N-cm (8 in-lb)
Type-N 50 Ω or75 Ω 8710-1766 3/4 in 135 N-cm (12 in-lb)