HT instruments SIRIUS87 - Manual (Page 19)

SIRIUS 87
EN - 17
4.2.1.1. Mode "MAN"
6. Press the
START/STOP key.
The instrument effects the test lasting:
 Minimum 6 seconds in case the key is pressed and released within 5 seconds.
 Until the key is released for all the other cases.
 At the end of the test, in case the
resistance value R
ISO
detected results
to be lower than R
MAX
(depending on
the selected voltage see following table)
and the test is effected at the
selected rated voltage value, the
instrument emits a
double sound
signal indicating the positive
outcome of the test displays one
screen similar to the screen alongside.
R
ISO

1.00
M 
500 V 20
s
MAN
The values of measured resistance of isolation always must be confronted with the
normative limits (see table) for being able to assert if the system is to norm.
SAVING:
The test can be stored pressing the
SAVE key twice
(according to § 5.1).
Rated voltage value
selected for the test.
Test duration.
In this case the
START/STOP
key has been
pressed for 20
seconds.
Manual mode.
SAVE
R
ISO
insulation
resistance value
.
START
STOP