Ht-instruments SIRIUS87 Manual de usuario descargar pdf (Pagina 21)

SIRIUS 87

EN - 19

4.2.2. Special cases which may occur during the tests "MAN", "AUTO", "TIMER"



In case a value of R

ISO

higher than

MAX

was detected (depending on the

selected voltage see following Note

table, the instrument emits a double

sound signal at the end of the test

indicating the positive outcome of the

test and displays one screen similar to

the screen alongside.

ISO



> 999 M

500 V 20 s

MAN



In case a test is effected at a voltage

lower than the set rated voltage, at

the end of the test the instrument emits

a long sound signal and displays one

screen similar to the screen alongside.

ISO



0.01 M

500 V 20 s

MAN

SAVING: The test can be stored pressing the SAVE key twice

(according to § 5.1).



If the terminal voltage is higher than

30V, the instrument does not effect the

test, displays the screen alongside for 5

seconds after which, it shows the

default screen relative to the R

ISO

test

under selected mode.

ISO



 33V

VOL AG

THIS RESULTS CANNOT BE SAVED.

ATTENTION: the

test was not

carried out.

Check that the

circuit is not

energised.

The symbol ">"

means that the

resistance value

ISO

is higher than

MAX

Test duration

Selected mode

MAN

Selected mode

MAN

ATTENTION: the test of resistance R

ISO

was

effected at a voltage value lower than the set

rated voltage. Low insulation case. This case

occurs under low insulation conditions or in the

resence of ca

acit

on the installation.

Maximum resistance value which can be

measured (999 is displayed if a rated voltage of

500V was selected see table).

SAVE

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Ht-instruments SIRIUS87 Manual de usuario Pagina 21

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