EM TEST
AN 200
Bedienungsanleitung
V 2.00
13 / 16
6.
Maintenance
6.1.
General
The internal switch is absolutely maintenance-free by using a solid state semiconductor .
6.2.
Function check
Similar to all measuring and test instruments the correct function of the battery supply switch should be checked from
time to time. The check is best carried out according to the following procedure:
-
Switch on the power mains supply and connect the DUT battery supply.
-
Select
NORMAL
operation;
-
Select the
Off time
to 200ms;
-
Select the shunt resistor to 10
Ω
;
-
Select the
AUTO
trigger mode.
After pushing the
TEST ON
button the LED should now blink at a frequency of 1Hz and the EUT supply is switched
off for 200ms each time. This can be checked at the
Monitor
CRO
output. For this purpose a storage oscilloscope of
at least 20MHz bandwidth is needed.
6.3.
Test setup
The test offered by the AN 200 generator is a immunity test on electronic equipments or devices. Therefore it is
the responsibility of the user to avoid critical failures and risks to the environment and operator.
Please refer to the safety manual before starting to work with the AN 200
Figure 15 : Setup for pulses in the ms range
Figure 16 : Setup for pulses in the
µ
s / ns range
Important
- The artificial network AN shall be connected directly to the ground
reference plane.
- All wires between AN and the DUT shall be isolated from the
ground plane by 50mm.
- The DUT will be placed on the ground plane as in real installation.
- directly grounded to the ground plane or
- 50mm isolated from the ground plane
- The position of the instruments shall be as specified in the standard.
6.4.
Safety aspects
National and international recommendations regarding human safety must be followed. When setting up the test
national and international regulations regarding human safety have to be guaranteed.
The test offered by the AN 200 generator is a immunity test on electronic equipments or devices. Therefore it is
the responsibility of the user to avoid critical failures and risks to the environment and operator.
Long and distributed lines of the EUT are able to radiate a certain energy to their vicinity. Therefore it is also the
responsibility of the user to decide whether it is allowed to conduct immunity tests in a given installation.
