HT instruments MPP300 - Manual (Page 15)

MPP300
EN - 13
21. Upon reaching the instant “00” after pressing the GO/STOP
key, the test is started and the three units are
synchronized with each other. In these conditions:
 The display of SOLAR I-V shows the message “rec.
running”
 The display of SOLAR-02 shows the message
“Recording…”
 On MPP300, the STATUS LED flashes green
15/05/10 15:35:00
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 . r u n n i n g
Select M P P
22. At any time it will be possible to analyze the current
recording status by pressing the MENU key. The following
information will be shown:
 starting date and time of recording
 the value set for the integration period
 the number of periods elapsed from the beginning of the
recording
 the remaining memory capacity for recording
Press the ESC key to exit the screen
15/05/10 15:35:00
S t a r t
1 4 / 0 2 / 0 0 1 7 : 1 8 : 0 0
P e r i o d : 5 s
I P N u m b e r 6 1
R e c . t i m e 0 d 1 h
Reg. in corso
R e c r u n n i n g
Select M P P
23. Now it is possible to bring the unit SOLAR-02 near the PV strings to measure irradiation and
temperature by means of the relevant probes. When the distance between unit SOLAR-02
and MPP300 does not allow the RF connection, on the display of SOLAR-02 the symbol
“
” flashes for approx 30s and then disappears. Unit MPP300 steadily searches for the
RF connection with unit SOLAR-02
24. Position the reference cell onto the surface of the PV modules. Please refer to the relevant
User Manual for a correct assembly
25. Put the temperature sensor in contact with the rear side of the panel and fasten it with some
tape; prevent touching it with your fingers (as this could alter the measure)
26. Wait for a few seconds to allow the probes to reach a steady measure and then connect the
irradiation probe to input PYRA/CELL and the temperature probe to input TEMP of unit
SOLAR-02
27. Wait for the message “READY” to appear on the display of SOLAR-02 to indicate that the
unit has detected the data with solar irradiation > minimum threshold set (see the User
Manual of SOLAR I-V)
28. With the message “READY” shown on the display, wait for approximately 1 minute in
order to take a certain number of samples
29. Disconnect the irradiation and temperature probes from unit SOLAR-02 and bring the unit
near unit MPP300. Bring the main unit SOLAR I-V near MPP300 too. The three units
must be near each other (max distance 1m)
30. The main unit SOLAR I-V must be in EFF mode; if no flashing symbol “ ” appears,
press key
 to activate the RF connection search again
31. Press key
 on SOLAR-02 to activate the RF connection again. Consequently, the main
unit will show the message “radio connection activated”