HT instruments SOLAR I-V - Manual (Page 16)

I-V400 - SOLAR I-V
EN - 14
5.2.1.2. PV plant parameters
1. Press MENU key, move the cursor onto EFF by using the
arrow keys (
,) and confirm with ENTER. The display
shows the values of the output electrical parameters of
the photovoltaic generator (DC side).
15/05/10 15:34:26
P R p - - -
I r r - - - W / m 2
P n o m 0 . 0 0 0 k W
T c - - - ° C
T e - - - ° C
P d c 0 . 0 k W
V d c 0 . 0 0 0 V
I d c 0 . 0 A
n d c - - -

G O – s t a r t r e c
Select E F F
2. Press the ENTER key. The instrument shows the
following options: “Set PV plant“ and “Set Instrum“.
3. Use the arrow keys (
,) to select “Set PV plant” and
confirm with ENTER. The instrument shows the following
screen:
15/05/10 15:34:26
P r p - - - W / m 2
I r r - - - W / m 2
P n o m 0 . 0 0 0 k W
T c - - - ° C
T e - - - ° C
P d c 0 . 0 k W
V d c 0 . 0 0 0 V
I d c 0 . 0 A
n d c - - -
Set PV plant
S e t I n s t r u m e n t
Select E F F
4. By means arrow keys (
 , ) the herewith parameters
are set:
 Pmax  maximum nominal power of the PV
installation expressed in kW
 Gamma  coefficient of variation of power with the
temperature, standard parameter of PV module
(range: -0.3
 -0.5%/°C typical)
 Noct  nominal working temperature of a PV cell,
standard parameter of PV module (range: 42
 48°C
typical)
 Te, Tc  set of default values of environmental
temperature and PV module temperature. These
values are considered by the meter only without the
auxiliary probe connected to emote unit SOLAR-02
 Corr. Type  set the corrective term Ptpv for DC
efficiency calculation and for maximum DC efficiency
visualization (see § 5.2.3)
15/05/10 15:34:26
P m a x :  3 . 5 0 0  k W
G a m m a : 0 . 4 5 % / ° C
N o c t : 4 5 ° C
T e :
4 0 ° C
T c : 4 5 ° C
C o r r . T y p e : T . E n v
SAVE to store data
E F F