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18. Advanced Menu (Micro-Hydro and Fuel Cell Applications)
Mpp Range Limit % (Auto Track Mode only)
The FLEXmax 80 searches for the MPP voltage by tracking the input voltage up to one half (default) of
the Voc, which is based on values appropriate for a solar array. Micro-hydro and fuel cell systems can
require a broader range, normally on the lower end. Adjusting the lower limit, expressed as 1/2 on the
display screen, for FULL allows the FLEXmax 80 to track the input voltage close to the battery voltage
instead of 1/2 (or 50%) of the Voc.
This adjustment only aects the initial tracking at the beginning of the day and any subsequent trackings
caused by Auto-Restart or any forced restart of the FLEXmax 80.
To adjust the Lower Mpp Range Limit:
From the MAIN Menu, with the arrow in front of
Advanced, press the <GO> soft key.
In the ADVANCED MENU screen, press the <NEXT> soft
key until the Mpp Range Limit % Voc screen appears. Press
the <1/2> soft key until FULL appears. When nished,
press the <NEXT> soft key until the MPPT Mode screen
appears.
To pick between Auto Track or U-Pick % MPPT Mode and
determine the FLEXmax 80’s operating Voc percentage,
press the <MODE> soft key to interchange between the
two modes. Re-entering the password might be required.
After choosing a mode, press the <NEXT> soft key in
the ADVANCED MENU to view the Park Mpp screen (only
applicable for U-Pick mode).
Press the <-VOC> or <+VOC> soft key to select one of
the percentage values; U-Pick always uses the Park Mpp
value.
Charger Aux Light
Eq Misc
gAdvanced
Logging Stats
EXIT f g GO
ADVANCED MENU
Mpp Range Limit %Voc
Min Max
EXIT NEXT 1/2 90%
ADVANCED MENU
MPPT Mode
Auto Track
EXIT NEXT nonGT MODE
ADVANCED MENU
Park Mpp
Watts 0000 77 % VOC
EXIT NEXT –% +%