R&S ENV4200, User Manual

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Instrument tour
R&S
®
ENV4200
10 User Manual 1107.2470.12 ─ 04
the fan LED turns orange. If the coil temperature is greater than 100 °C, an acoustic
alarm sounds and the fan LED turns red.
See (1) in Figure 2-1 .
2.1.2 Line selection
Rotary switch for selecting the measuring path (L1, L2, L3 and N) of the V-network to
the test receiver. The measuring path LED which corresponds to the measuring path
selection is illuminated in green.
See (2) in Figure 2-1 .
2.1.3 Pulse limiter
The switchable pulse limiter limits voltage peaks up to 140 dBµV at the RF output. This
corresponds to a measured disturbance signal level of 150 dBµV. Keep in mind that
the test receiver only covers a 9 kHz spectral component of a broadband disturbance
signal.
When the device is powered on, the pulse limiter is always activated and must be
intentionally switched off. This ensures that it cannot be accidentally switched off.
If the pulse limiter is switched on, the green LED lights up.
See (3) in Figure 2-1 .
Figure 2-2: Basic principle of the pulse limiter
2.1.4 MC high current connector (L1, L2, L3, N)
MC panel connector for interference voltage measurements of single and three-phase
devices under test with a star-alternating voltage of up to 400
V (equivalent to a delta
AC voltage of 690 V) and a DC voltage of up to 690 V. The maximum continuous cur-
rent for each phase is 200 A.
See Chapter 4.3, "Connecting the equipment under test" , on page 19 and (4) in Fig-
ure 2-1 .
Front panel view