PV-ISOTEST
EN - 13
6.1.2. Carrying out continuity measurements in Standard (STD) mode
1. Position the cursor onto
RPE
by using the arrow keys
(
,
) and confirm with
ENTER
. The display shows the
following screen. The symbol “STD” is shown on the
display.
RPE
15/10 – 18:04
R
- - -
I t e s t
- - -
m A
STD 2.00
- - -
MODE
Lim.
>
<
2. Use the arrow keys
or
and select the position
““
Lim.
”. The display shows the screen to the side.
3. Use the arrow keys (
,
) to set the limit reference
threshold for continuity measurement, which can be
selected in a range between
0.01
9.99
in steps of
0.01
(please remember that guidelines does not
establish a limit value or resistance and typical values are
approx. 1
or 2
).
RPE
15/10 – 18:04
R
- - -
I t e s t
- - -
m A
STD 2.00
- - -
MODE
Lim.
>
<
4. Carry out the initial calibration of the measuring cables (see § 6.1.1).
5. Connect the instrument to the PV module/string being tested and to the main earth
node of the system as shown in Fig. 5.
CAPTION:
E: Green
cable
C: Blue
cable
1. PV module/string
2. Main system earthing
3. Earthed metal structure
in the system
Fig. 5: Connection of meter for continuity measurement on structures of the PV installation
CAUTION
Upon pressing the
GO/STOP
key, different error messages can be displayed
by the instrument (see § 6.1.4) and, therefore, the test cannot be started.
Check and eliminate, if possible, the problem causing the error message
before going on with the test.