Atec Teseq-KEMZ-801A - Manual

EM claMp for IEc/EN 61000-4-6
KEMZ 801a
As specified in IEC/EN 61000-4-6
Very efficient coupling
Can be used on almost any cable
Ruggedly designed
100 Ω
21-52
50
100
100
all dimensions in mm
IEC 61000-4-6 (EN 61000-4-6) defines three basic types of transducer used for the injection of test signals
into the equipment under test (EUT). The basic requirement is to inject a known level of RF signal onto
the cable of the EUT at each test frequency and to determine whether the EUT continues to function
correctly. In order to do this, it is necessary to decouple the auxiliary equipment (AE) from the test signal.
If this is not achieved it is difficult to know whether any fault is due to a failure of the EUT or the AE.
Whilst the coupling/decoupling network (CDN) is one of the best ways to achieve this test and indeed it
is mandatory to use them under some circumstances, it is not always possible to use a CDN.
The normative Annex A of IEC/EN 61000-4-6 gives additional information regarding the clamp injection.
The KEMZ 801A is similar to the described EM clamp in the standard and injects the disturbance signal
through a combination of inductive and capacitive coupling. The use of a ferrite cores along the length
of the clamp also improves the common mode impedance of the test set-up and the reproducibility of
the test.
Optionally offered is the calibration kit CAL 801A which allows test level setting and correction factor
measurement.
Technical specifications
Technical specifications of CAL 801A
Frequency range: 10 kHz to 1000 MHz
Nominal impedance: 50 Ω
Connector: N-type female
Maximum input level
0.01 to 100 MHz:
100 W for 15 min
100 to 230 MHz: 100 W for 3 min
230 to 1000 MHz: 50 W for 3 min
Maximum correction factor
0.15 to 400 MHz:
4 dB (50 Ω system),
13.5 dB (150 Ω system)
Maximum cable diameter: 20 mm
Dimension (LxWxH): 647 mm x 130 mm x 105 mm
Weight: approx. 7 kg
Dimensions: see drawing
Maximum length of the clamp: 670 mm
Connectors on the clamp side: 4 mm banana
RF connector: N-type female
Weight: approx. 640 g
KEMZ 801A
Dimensions of the 150 Ω to 50 Ω
adapter (part of CAL 801A), side view
CAL 801A calibration unit for
KEMZ 801A