Rohde & Schwarz ESH3-Z6, Manual

Page: 15 / 23

Service
R&S
®
ESH3-Z6
15 Manual 1178.9932.02 ─ 01
Arrange the test setup for X1.1 - X2.1 bolts as shown in Fig. 3 .
The current conductors connect to output slots of power supply. The voltage refer-
ence conductors connect to the reference slots (signed SENSE) of power supply.
3. Tighten the torque of M8 nuts: 8 Nm to 10 Nm.
4. Turn on the DC power supply.
DC power
supply
DMM
+
+
R&S ESH3-Z6
X2.1
X2.2 X1.1
X1.2
X3
Power in
RF out
Power out
Figure 5-3: Test setup for conductor resistance test
Performing the test
► Read out the voltage of the AN conductor on the digital multimeter.
The power conductor resistance must be
≤
6 m
Ω
.
Note: Calculate the power conductor resistance from the voltage drop at the test
current.
5.2.3 Impedance measurement X2 (CISPR 25 - Ed 4: 2016)
Test equipment
●
Vector network analyzer
●
BNC 50
Ω
terminator
●
2x adapter Xn - BNC-F
Preparing the EUT
1.
DANGER! Do not connect the R&S ESH3-Z6 to mains voltage for the test. Con-
necting the R&S ESH3-Z6 to the mains voltage poses hazardous or even life-
threatening risks to the operator.
Arrange the test setup as shown in
Fig. 4 .
2. Install the Xn - BNC-F adapter on X1 and X2 connectors.
3. Tighten the torque of M8 nuts: 8 Nm to 10 Nm.
4. Connect the BNC 50
Ω
termination to the BNC adapter installed on X3.
Perfomance Test