User Manual

ManualsBrandsGossen Metrawatt ManualsElectrical & Electronic Test InstrumentsElectrical safety tester

GMC-I Messtechnik GmbH 9

4 Initial Start-Up

4.1 Connecting the Test Instrument to the Mains

➭ See section 12 for nominal mains values (nominal ranges of

use).

➭ Connect the test instrument to the mains cable via its inlet

plug and insert the mains plug into an electrical outlet. The

function selector switch can be set to any position.

If a mains outlet (earthing contact outlet) is not available, or if

only a 3-phase outlet is available, the adapter socket can be

used to connect the phase conductor, the neutral conductor

and the protective conductor. The adapter socket has three

permanently attached cables and is included with the KS13

cable set.

Attention!

If connection is not possible via an earthing contact out-

let: Shut down mains power first.

Then connect the cables from the coupling socket to the

mains using pick-off clips in accordance with the dia-

gram.

Disconnection from mains power is only possible with

the mains plug.

Figure 1 Connecting the Test Instrument to the Mains

4.2 Automatic Recognition of Mains Connection Errors

The device automatically recognizes mains connection errors if

the conditions in the following table have been fulfilled. The user is

informed of the type of error, and all measuring functions are dis-

abled in the event of danger.

10 A R

measurements are only possible with line voltages of 115/230 V and line

frequencies of 50/60 Hz.

Attention!

If, while testing protective conductor potential, you deter-

mine that the mains protective conductor is conducting volt-

age (in accordance with the first two cases listed above),

no further measurements may be performed with the test in-

strument. If this is the case, potentially dangerous voltage

is also present at the accessible earthing contacts of the

standard socket (test socket). Immediately disconnect

the test instrument from the mains and arrange to have

the fault eliminated at the mains connection.

Note

Voltage at the electrical system’s protective conductor PE may

result in distorted measurement values during testing for

the absence of voltage, or during leakage voltage mea-

surements.

4.3 Test Probe Connection (P1)

Insert the double plug from test probe P1 into socket 1 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.

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 is not 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.

green-yellow

KS13

Type of Mains

Connection Error

Message Condition Measurements

Voltage at

protective conductor PE

to finger contact

(START/STOP key)

Display at the

instrument

Press START/STOP

button

U  25 V

All measurements

disabled

Protective conductor PE

and phase conductor L

reversed and/or

neutral conductor N

interrupted

Voltage at PE

> 100 V

Impossible

(no supply power)

Line voltage

< 180 V / < 90 V

(depending on mains)

Reference

voltage

adjustable

in setup

L-N

< 180 V

L-N

<90V

(reference

voltage adjustable

in setup)

Conditionally

possible