Manual Gossen Metrawatt SECUTEST SIII (page 17 of 72) (English)

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GMC-I Messtechnik GmbH 17

7 Connecting the Device Under Test

õ Connect the DUT in accordance with the schematic diagrams included

in the online help function.

Connection of the DUT to the test instrument depends upon:

• The type of device under test:

electrical equipment or not, with or without application parts

• The type of connector included with the DUT:

– With plug (“to test socket” parameter), applies to EL1 adapter as well

– Without plug, single or multi-phase connection (“to jacks” parameter)

– No connection to tester (“permanent connection” parameter),

see also chapter 3.1

Whether or not an adapter is used:

– Adapter to socket (customer specific adapter)

– AT3-II S to socket, adapter for devices which are equipped with

5-pole, 16 A CEE plugs

– AT3-III E to socket, adapter for devices which are equipped with

5-pole, 32 A CEE plugs, see AT3-III operating instructions for test

sequence.

• The DUT’s safety class (I, II or III)

Note

The DUT must be switched on for all tests. Switches, relays,

temperature regulators etc. must all be taken into consideration.

The test instrument automatically recognizes whether or not the DUT is

connected to jacks 1 through 3. The instrument also recognizes whether

or not the DUT has been connected to the test socket. As a default set-

ting, the program sequence assumes that the plug from the DUT has

been connected to the test socket.

Note

Safety Class II Devices with Safety Class I Mains Plugs

If the device under test is equipped with a safety class I plug

although it complies with safety class II, safety class I is recog-

nized by the test instrument. If this is the case, switch from safety

class I to safety class II in the initial menu.

If the test instrument is unable to automatically recognize how the DUT

has been connected, the recommended connection setup should be

double checked and determined manually if necessary.

õ Position the cursor at the third line in the start menu for the test se-

quence.

õ A selection of possible connection setups can be displayed by

activating the key.

õ Select the desired connection setup with the cursor and

acknowledge with the key.

For omitting the protective conducter test in the case of fully insulated devices see

page 65.

Protective Conductor and Insulation Resistance Measurements for Permanently

Installed Devices Under Test

Attention!

Deactivate the electrical system which supplies power to the

device under test before connecting the test instrument!

õ Remove the mains fuses from the device under test and disconnect

the neutral conductor N inside the device under test.

Measuring Contact Current (absence of voltage)

Make sure that the contacted parts are not grounded.

High-Voltage Test (Feature F02 or SECUTEST SIII+H)

Attention!

The KS13 cable set, or similar cable sets, may not be used

for the high-voltage test. The high-voltage test may only be

performed directly via the test socket!

õ Connect the device under test to the test socket.

õ Safety class II only: Connect the probe to jacks 4 and 5.

Attention!

Make sure that the application parts (Feature J01) are not con-

nected during the high-voltage test!

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Gossen Metrawatt SECUTEST SIII Manual

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