User manual
18
Subject to change without notice
Controls and Elements
4 Controls and
Elements
4.1 Front panel
1
Articial Hand
This feature simulates the inuence of the human
hand. When performing EMC measurements for
devices, which are held in hand during use (for
example: electrical drilling machines, hairdryer
etc.) the Artificial Hand simulates the influence
of the human hand on the EMC behavior of the
equipment. If the DUT has a plastic housing, a con-
ductive lm should be used to cover the housing
at the location, where it is held in hand. A
test lead is used to connect the lm to banana jack 1.
DUTs with a metal housing are connected directly to
banana jack 1, if they don’t have a protective ground
connection according to Class 1.
2
Ground jack
This jack is used for testing DUTs, which don’t have
a protective ground line in their AC power cable, but
do have a separate ground connection. The DUT’s
ground connector has to be linked to banana jack 2
via a test lead. This lead should be placed in parallel
to the two-line AC power cable.
3
Mains power outlet for the DUT
The DUT will be connected to the HM6050-2’s Mains
power outlet with its AC power cable. The maximum
supply current of the DUT must not exceed a con-
tinuous current of 16 A at an ambient temperature
of 23°C. At higher ambient temperatures a fan has
to be used for cooling. In any case a sufcient free
air circulation has to be kept for the HM6050-2.
4
LED L1
If the mains plug connected in correctly in phase,
LED L1 is lit. If it does not, the mains plug has to be
turned by 180°. There is no risk related to the phase
status, but the correspondence to the indication for
L1 (line) and N (neutral) might be incorrect. In case an
asymmetric mains plug is used, lines L1 and N have
to be changed inside the plug of the power cable.
6
L1/N selector switch
Provided that the HM605-2 is correctly connected
to the mains power outlet (item
4
) LED
5
is lit
after power-on. The EMC signal immediately will
be available at output jack “Test Receiver”
11
. By
pushing button
6
the signal source toggles to line
N, which is indicated by a LED
7
lit.
8
PE selector switch
After setting HM6050-2 to operation (power on) the
protective ground simulation circuit is bypassed by
default. After pushing button “PE”
8
the direct
grounding of the protective earth line (according
to VDE 0877 Part 1/03.89) will be replaced by a
protective ground simulation circuit (according to
VDE 0877 Par t 1/03.989 (89 (50µH II 50Ω to ground)).
1 2 3 4 5 6 7
13
8 9
11
12