Replacing Fuses - R&S ZVA-Z75 Manual De Instrucciones

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R&S ZVA-Z75, -Z90, -Z110, -Z140, -Z170, -Z220, -Z325, -Z500
After switching the instrument to the ready state, a warm-up time of one hour is
required to ensure accurate measurements. The instrument is only warmed-up in
ready state, not in standby state.
2.4.8 Mounting a DUT
Mount the DUT to the test port adapter at the front of the converter. Use the included
screws and hex ball driver. For higher precision, a torque-controlled hex ball driver
R&S ZV-Z1000 is available as an accessory (order number 1314.5467.02). Rohde &
Schwarz also offers a special angled hex ball driver R&S ZCAW (order number
1175.1960.00) that can advantageously be applied in the tight space between rear side
of the test port adapter flange and converter front side (see
Figure 2-8: Angled hex ball driver R&S ZCAW (accessory)
A tight and accurate connection is essential for precise calibration and measurement
results. Depending on the type of waveguide flange of the DUT, it can be required to
exchange the test port adapter (see
Adapter",
For a test setup involving two frequency converters connected to one DUT, converters
and DUT have to be aligned accurately, using the adjustable instrument feet. A bubble
level can help to achieve proper alignment.

2.4.9 Replacing Fuses

The power supply connector at the rear panel is protected by a fuse of type IEC60127
T1 L/H (IEC60127 T1.8 L/H on R&S ZVA-Z500 converters). To replace the fuse, open
Getting Started 1307.7039.62 ─ 11
on page 12).
Putting the Converter into Operation
Chapter 2.4.4, "Selecting and Mounting a Test Port
Preparing for Use
Figure 2-8).
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