HT instruments MPP300 - Manual (Page 14)

MPP300
EN - 12
17. The display of SOLAR I-V will show the values of the
general electrical parameters of the system being
measured
In particular, in this screen:
Pdc = General dc power (sum of the string powers)
Pac = ac power (if single-phase) or sum of the ac powers (if
three-phase)
We recommend checking that the values of the electrical
parameters (Pnom, Pdc, Pac) and of the ac performance
(
ac) are consistent with the system being measured (e.g.:
ac > 1 is not physically acceptable)
15/05/10 15:34:26
P R p - - -
I r r - - - W / m 2
P n o m 3 . 5 0 0 k W
T c - - - ° C
T e - - - ° C
P d c 3 . 1 2 5 k W
P a c 2 . 9 6 0 k W
n d c - - -
n a c 0 . 9 5

G O – s t a r t r e c
Select M P P
18. On SOLAR I-V, press key (
) to access the second
screen which contains the values of the output DC
parameters of the strings according to the number of DC
inputs set (see the User Manual of SOLAR I-V)
In particular, in this screen:
Vdcx = dc voltage of string x.
Idcx = dc current of string x.
Pdx = dc power of string x.
We recommend checking that the values of the electrical
parameters (Vdc, Idc, Pdc) are consistent with the system
being measured
15/05/10 15:34:26

V d c 1 4 6 0 . 1 k W
V d c 2 4 6 1 . 4 V
V d c 3 4 6 2 . 5 A
I d c 1 2 . 2 5 A
I d c 2 2 . 3 1 A
I d c 3 2 . 2 1 A
P d c 1 1 . 0 3 5 k W
P d c 2 1 . 0 6 6 k W
P d c 3 1 . 0 2 4 k W

G O – s t a r t r e c
Select M P P
19. On SOLAR I-V, press key (
) to access the third screen
which contains the values of the electrical parameters on
the AC side of the inverter, consistently with the settings
made (see – SOLAR I-V user’s manual, single-phase,
three-phase 4 wires).
In particular, in this screen:
Vacxy = ac voltage between Phase and Neutral (if single-
phase) or between Phases x and y (if three-phase)
Iacx = ac current of phase x
Pacx = ac power of phase x
We recommend checking that the values of the electrical
parameters (Vac, Iac, Pac) are consistent with the system
being measured
15/05/10 15:34:26

V a c 1 2 4 0 1 . 4 V
V a c 2 3 4 0 1 . 1 V
V a c 3 1 4 0 0 . 1 V
I a c 1 4 . 2 6 A
I a c 2 4 . 2 6 A
I a c 3 4 . 2 7 A
P a c 1 9 8 7 W
P a c 2 9 8 6 W
P a c 3 9 8 5 W

G O – s t a r t r e c
Select M P P
E x a m p l e o f a s c r e e n f o r
P V s y s t e m s w i t h t h r e e -
p h a s e o u t p u t
20. Keeping the three instruments near each other (max distance
approx. 1m), press the GO/STOP key on SOLAR I-V to start
testing. Consequently:
 The display of SOLAR I-V shows the message “Rec. start
waiting”
 The display of SOLAR-02 shows the message “HOLD” and
the time, expressed in seconds, remaining before the
recording is started
 On MPP300, the STATUS LED turns on green (not flashing)
15/05/10 15:34:26
P R p - - -
I r r - - - W / m 2
P n o m 3 . 5 0 0 k W
T c - - - ° C
T e - - - ° C
P d c 3 . 1 2 5 k W
P a c 2 . 9 6 0 k W
n d c - - -
n a c 0 . 9 5

R e c . S t a r t W a i t i n g
Select M P P