Switching On The Instrument; Mounting A Dut - Rohde & Schwarz ZVA-Z90E Handbuch

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R&S ZVA-Z90E / -Z110E

2.4.8 Switching On the Instrument

The standby toggle switch is at the rear panel (see
on page 8). To switch the instrument to ready state, press the key. The green LED next
to the switch must be lit now.
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.

2.4.9 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.
Getting Started 1307.7197.62 ─ 08
on page 13).
Putting the Converter into Operation
Chapter 2.3.1, "Standby
Chapter 2.4.4, "Selecting and Mounting a Test Port
Preparing for Use
Switch",
Figure 2-8).
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