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Instrument Construction and Function Description
R&S ZVB
1145.1078.82 3.46
E-4
Replacing the Bridge Unit
(R&S ZVB4/8 only)
(See Chapter 5, Spare Parts List, drawings 1145.1010, 1145.3664, Item 100)
Opening the instrument and removing the reflectometer
Remove the Reflectometer (see chapter
Replacing a Reflectometer RM8 A510 to A540
)
Removing the bridge unit
Loosen the MEAS, REF and GEN cables (310, 320, 300) at both ends and disconnect at the bridge
unit.
N.B.:
When loosening support the cable with a 7 mm spanner!
Remove the 3 screws (160) and carefully pull the bridge unit off the reflectometer.
Remove the 2 screws (240) and remove the plate (230).
Fitting the new bridge unit
Secure plate (230) to the new bridge unit using the 2 screws (240).
Carefully place the bridge unit on the reflectometer and secure with 3 screws (160).
Screw the MEAS- REF and GEN cables (310, 320, 300) to the bridge unit, and then tighten at both
ends.
N.B.:
When tightening with a 7 mm spanner support the cable.
Reassembling the instrument
Reinstall the Reflectometer (see chapter
Replacing 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 ]
Record generator and receiver correction data (see
Recording Correction Data
).
Perform factory system error calibration (see
Factory System Error Calibration
).
Содержание ZVB 14
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Страница 58: ...Table of Contents Alignment R S ZVB 1145 1078 82 I 2 2 E 4 ...
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Страница 160: ...1145 1078 82 5 2 E 4 Spare Parts List Mechanical Drawings ...
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Страница 189: ...1145 1078 82 5 19 E 4 Block Circuit Diagram ...
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