R&S ZVA8 - Replacing the Inner Conductor of a Port Connector (ZVA8 Only)

R&S ZVA Repairs
1177.5333.02 3.61 E-11
Replacing the Inner Conductor of a Port Connector (ZVA8 only)
(See Chapter 5, Spare Parts List, Item 110, and drawings 1145.1110, 1145.4177, 1145.3593)
Opening the instrument and removing the reflectometer
 Remove the Reflectometer (see chapter Replacing Reflectometer Board A510 to A540)
Replacing the inner conductor
 Unscrew the N outer conductor with a spanner (narrow, SW 14mm) 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 Reflectometer Board A510 to A540)
 Connect the mains cable, turn on at the mains switch and press the ON key.
 Select Service Level 2 (see Service Functions).
 When the instrument has been started, check the protocol file for errors:
[ INFO : Error Log ]
 Check the gauge (see Checking the Gauge in chapter 2)
 Perform factory system error calibration (see Factory System Error Calibration in chapter 2).