Gossen Metrawatt GmbH
15
6.2
Connecting Test Probe P1 or P2
Insert the double plug from test probe P1 or P2 into socket 1 or 2
respectively such that the plug with the white ring makes contact
with the socket with the vertical bar.
The white ring identifies the terminal for the high current conduc-
tor which is safeguarded by the neighboring fuse link.
Attention!
!
Test probe with coil cord (SK2W):
Grip the tip of the test probe firmly, for example if it has
been inserted into a jack socket. Tensioning at the coil
cord may otherwise cause the test probe to snap back
resulting in possible injury.
Attention!
!
Probe Test
Test the probe after completing each test (see also sec-
tion 6.2 “Connecting Test Probe P1 or P2”).
If the fuse at test probe P1 is defective after testing has
been started, all subsequent measurements conducted
using this measuring path will be incorrectly evaluated as
good!
Note
Difficultly in Contacting Exposed Conductive Parts
when Using the Standard Probe with Test Tip
In order to assure good contact, surface coatings must
be removed from devices under test with special tools at
a suitable location.
The tip of test probe P1 isn’t suitable for scratching away
paint, because this may impair its coating and/or
mechanical strength. Brush probe Z745G may be more
suitable than the test probe in certain individual cases.
6.3
International Use
Under the conditions described below, the test instrument can
also be used internationally.
Power Supply
The test instrument is equipped with a
broad range input
(see sec-
tion 20 “Maintenance”) and is thus suitable for nearly all AC net-
works anywhere in the world.
Depending on selected order features, the plug on the power
supply cable is country-specific. This cable can be removed and
replaced with another suitable power cable with different national
specifications. Ask your electrical components dealer for a suit-
able power supply cable.
The test instrument can also be connected to the power supply
by means of a travel adapter. Observe the following in this regard:
•
The travel adapter’s protective earth conductor must demon-
strate faultless continuity.
•
The travel adapter must provide the necessary current carry-
ing capacity (16 A or fusing of the upstream installation).
•
The test instrument (irrespective of the travel adapter) is only
suitable for active measurements of DUTs with nominal cur-
rent of up to 16 A.
For active tests on DUTs with current exceeding 16 A, use a
suitable test adapter with its own residual current transformer
and contactor (e.g. AT32-DI).
Test Socket
The test instrument’s test socket is also country-specific and
depends on the selected order feature.
A universal test socket adapter is available as an accessory for
the German test socket, which is suitable for DUTs with various
country-specific plugs (see data sheet).
Make sure that the phase conductor is correctly positioned when
connecting the universal test socket adapter: in the “normal polar-
ity” setting, the phase conductor is fed to the contact of the active
conductors in the test socket, which faces the carrying handle.
Voltage and frequency have to be set for the different mains volt-
ages of the DUTs. Enter the appropriate value under:
SETUP 1/3
>
All Measurements 1/2
>
Ref. Voltage L-PE
and
SETUP 1/3
>
All Measurements 1/2
>
Alt. Test Freq.
These two values influence your work with the test instrument as
follows:
•
When the “alternative” measurement type is used for leakage
current measurements involving touch current, protective
earth current and device leakage current, as well as for all
measurement types associated with the measuring function
for leakage current from the applied part:
– The level of the generated test voltage is controlled (current
limiting) on the basis of the selected reference voltage value.
– The frequency of the generated test voltage is controlled
according to the value selected in SETUP.
For all types of leakage current measurement, the displayed leak-
age current value is converted using the selected reference volt-
age value in order to compensate for any deviations of the actual
mains voltage from nominal conditions.
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