HT instruments PVCHECK - Manual (Page 48)

PVCHECK
EN - 46
6.5. MEASUREMENT OF CONTINUITY ON PV MODULES/STRINGS/FIELDS (LOW
)
6.5.1. Foreword
The purpose of this measurement is to test the continuity of protective conductors and
equipotential ones (e.g. from rod to earth and connected foreign earth) and earth rods of
SPDs on PV installations. The test must be carried out using a test current > 200mA
according to the prescriptions of IEC/EN62446 guideline
6.5.2. Calibration of measuring cables
1. Position the cursor onto LOW
 by using the arrow keys
(
,) and confirm with ENTER. The display shows the
screen to the side.
Fig. 13: Compensation of the measuring cables’ resistance
Connect the measuring cables as shown in Fig. 13:
Compensation of the measuring cables’ resistance
2.
15/05/12 15:34:26
R p e m a x : 1 
R c a l : - - - 
R p e = - - -

I t e s t = - - - m A
Selection L O W

Fig. 13: Compensation of the measuring cables’ resistance
2. Press the ENTER key. The instrument shows the
following options: Settings and Leads calibration
3. Use the arrow keys (
,) to select “Leads calibration”
and confirm with ENTER.
15/05/12 15:34:26
R P E m a x : 1

R c a l : - - -

R p e = - - -

I t e s t = - - - m A
Leads calibration
S e t t i n g s
Selection L O W

4. Press GO/STOP to start calibration. The message
“Measuring…” is shown on the display.
5. At the end of the compensation procedure, in case the
measured value of resistance is lower than 5
, the
instrument gives out a double sound to signal the positive
result of the test. The following screen appears on the
display:
15/05/12 15:34:26
R P E m a x : 1

R c a l : - - -

R p e = - - -

I t e s t = - - - m A
M e a s u r i n g …
Selection L O W
