R&S ZVB Instrument Construction and Function Description
1145.1078.82 3.45 E-4
Replacing the Inner Conductor of a Port Connector (R&S ZVB4/8 only)
(
See Chapter 5, Spare Parts List, Item 110, and drawings 1145.1010, 1145.3593, 1145.3664)
Opening the instrument and removing the reflectometer
Remove the Reflectometer (see chapter Replacing a Reflectometer RM8 A510 to A540)
Replacing the inner conductor
Unscrew the N outer conductor with a spanner (narrow, SW 14 mm) and take out inner conductor
unit.
N.B.: Ensure that the centring disk (135) is also removed.
Carefully insert the new inner conductor in the bridge unit enclosure and screw back the N outer-
conductor (lock with Loctite 262, mount with torque 3.5 Nm).
Reassembling the instrument
Reinstall the Reflectometer (see chapter Replacing a Reflectometer RM8 A510 to A540)
Connect the mains cable and turn on at the mains switch. The instrument is now in standby mode.
Select Service Level 2 (see Service Functions).
When the instrument has been started, check the protocol file for errors:
[ INFO : Error Log ]
Perform factory system error calibration (see Factory System Error Calibration).
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