HT instruments SPEED418 - Manual (Page 24)

400 Series
EN - 23
9.
In case the TMR mode has been selected, pressing the GO/STOP key on
the instrument or the START key on remote probe stops the test before the
set time has elapsed.
10. Should the measured value
be higher than the set limit,
the instrument gives a
double acoustic signal and
displays the message “OK”
which signals the positive
result of the test and a
screen similar to the one
reported here to the side
M 
5 7 8 M

5 2 6 V 1 5 s
Insulation resistance
Applied test voltage and test
duration time
OK
MAN 500V 0.50M 15s
Func VNom Lim Temp
11. Should the measured value
be higher than the full scale
(§ 12.1), the instrument
gives a double acoustic
signal and displays the
message “OK” which signals
the positive result of the test
and a screen similar to the
one reported here to the side
M 
> 999M 
5 2 6 V 2 s
Insulation resistance
Applied test voltage and test
duration time
OK
MAN 500V 0.50M
Func VNom Lim
12.
The results displayed can be saved by pressing the SAVE key twice or the
SAVE
key and, subsequently, the ENTER key (§ 9.1)
6.3.1. Description of anomalous results
1. Should the instrument not be
able to generate the nominal
voltage, at the end of the
test, it gives a long acoustic
signal and displays and a
screen similar to the one
reported here to the side
M 
0.01M

6 4 V 6 s
Not correct
MAN 500V 0.50M
Func VNom Lim
2. If the measured insulation
value is lower than the set
limit, the instrument displays
a screen similar to the one
reported here to the side and
gives a long acoustic signal
M 
0.19M

5 2 6 V 2 s
Not correct
MAN 500V 0.50M
Func VNom Lim