Ht-instruments SPEED418 Manual de usuario descargar pdf (Pagina 32)

400 Series

EN - 31

fter the test is completed, if

the measured resistance

value matches the nominal

current and the set limit

contact voltage, RA<Ul/IdN

(1666Ω @ UL=50V and

IdN=30mA), the instrument

gives a double acoustic

signal and displays the

message “OK”, which

RCD

39

FRQ=50.0Hz Ut=1.4V

VP-N=228V VP-Pe=228V

Value of total earth resistance

Detected value for contact voltage Ut

compared to the nominal value of

the set residual current

RA 30mA 50V

Func IdN RCD UL

signals that the test has been completed successfully, and displays a screen similar to

the one reported here to the side

The results displayed can be saved by pressing the SAVE key twice or the

SAVE key and, subsequently, the ENTER key (§ 9.1)

6.4.6. Description of anomalous results

1. By using the RA mode, if the

instrument detects a contact

voltage higher than the set

limit, it displays the message

reported here to the side.

Check the efficiency of the

protective conductor and the

earthing

RCD

39

FRQ=50.0Hz Ut=58.4V

VP-N=228V VP-Pe=228V

Dangerous contact voltage

NOT OK

RA 30mA 50V

Func IdN RCD UL

2. If the RCD trips in a time

exceeding the limits reported

in Tab. 5, the instrument

gives a long acoustic signal

which signals the negative

result of the test and then

displays a screen similar to

the one reported here to the

side. Check that the set type

of RCD matches the type of

RCD being tested

RCD

0°

487ms

FRQ=50.0Hz Ut=1.4V

VP-N=221V VP-Pe=221V

TIME NOT OK

The tripping time is not compliant

with Tab. 5

x1 30mA 50V

Func IdN RCD UL

3. If the RCD does not trip

within the maximum duration

of the test, the instrument

gives a long acoustic signal

which signals the negative

result of the test and then

displays a screen similar to

the one reported here to the

side. Check that the set type

of RCD matches the type of

RCD being tested

RCD

0°

>999ms

FRQ=50.0Hz Ut=1.4V

VP-N=221V VP-Pe=221V

TIME NOT OK

The RCD did not trip within the

maximum duration of the test

x1 30mA 50V

Func IdN RCD UL

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 87 88

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Ht-instruments SPEED418 Manual de usuario Pagina 32

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