I-V Curve Measurement; I-V Curve Measurement By Use Of Instrument - HT SOLAR I-Ww User Manual

6.2. I-V CURVE MEASUREMENT

The meter can perform I-V curve tests in automatic or manual activation mode by using
one of the herewith modes:
 I-V curve test with Irr/Temp measurement directly performed by the instrument
 I-V curve test with Irr/Temp measurement performed by use of remote unit SOLAR-02
For theoretical information on measurement see the § 11.1

6.2.1. I-V curve measurement by use of instrument

 The maximum voltage among P1, P2, C1, and C2 inputs is 1000V DC (for I-
V400w and SOLAR I-Vw) or 1500VDC (for I-V500w and SOLAR I-Ve). Do
not measure voltages exceeding the limits prescribed by this manual
 The maximum current measured by the meter is 15A. Do not perform test
on strings of PV modules in parallel with them
 Do not perform test on PV modules or strings connected to DC/AC
converter
1. Turn on the meter by pressing ON/OFF key
2. Check that option NO relative to the selection of remote unit SOLAR-02 should be set
on the instrument (see § 5.1.4)
3. Check that the values set on the "Remote unit" section (see § 5.1.4) should be
consistent with the reference cell depending on the kind of module/string on test
4. Check that the value set on "Irradiance" section (see § 5.1.5) should be consistent with
the measurement to perform. It is suggested to perform the measurement with a
threshold  700 W/m
5. Back to the main menu and select the "I-V" option
6. Press ENTER, by means of arrow keys (,) select
item "Meas. Type "
7. Using the  key, select item "I-V Test" and confirm by
pressing ENTER
8. The instrument displays a screen similar to the one
reported here to the side, where:
 Vdc = DC output voltage from module measured
between C1 and C2 inputs of meter
 Irr = irradiance measured by supplied reference cell
 Tc = temperature of module cell. The herewith options
are available for this field:
 AUTO  automatic mode of temperature measurement
 Number  MAN or AUX mode of temp. measurement
 " - - - "  AUX mode with no connected probe
 Module = type of selected module
 Temp = measurement mode of module temperature
 Start = measurement activation mode
I-V400w - I-V500w - SOLAR I-Vw - SOLAR I-Ve
2
in compliance to the IEC/EN60891 guideline
EN - 33
CAUTION
15/05/10 15:34:26
V d c =
I r r
T c
Module: SUNPOWER 210
S e t
M e a
Select
15/05/10
V d c =
I r r
T c
M o d u l e : P A N E L 0 1
Temp: Auto
Start: Manual
Select
0 . 0 V
= 0 W / m 2
= - - - ° C
I - V T e s t
I V F a s t C h e c k
I - V
15:34:26
0 . 0 V
= - - - W / m 2
= A u t o
I - V