DC Audiovisuel Junior User Manual

JUNIOR

USER MANUAL

Junior is a light and compact power station for small sound trolleys

DC Audiovisuel © Feb. 2019

www.dcaudiovisuel.com

A) Inputs

Junior can be powered from 90-250V AC line voltage through an IEC
connector, or different battery types through a XLR4M connector. When
both sources are connected to Junior, the AC line voltage is given
priority and charges the battery.

Junior accepts three battery chemistries:

 Li-Ion, capacity ranging from 10Wh to 300Wh,

 LiFe, capacity ranging from 10Wh to 300Wh,

 Sealed Lead Acid (SLA), capacity ranging from 6Ah to 25Ah.

1) Regular Battery (not SBS)

When Junior is connected to a non-Smart Battery System battery, it
asks for the battery chemistry and capacity via its color OLED screen.
A summary screen then appears, indicating charging voltage and
current. If this data is correct, the user validates it by pressing "Yes /
Enter". If it is incorrect, the user presses "Previous/Back" (<) to
correct the input parameters.

Validated parameters are stored in non-volatile memory and held even
when Junior is turned off.

 When Junior is turned back on, it checks if the battery has been

disconnected. If the same battery is still connected, the settings
are automatically reloaded from the non-volatile memory.

 If a battery has been disconnected and then reconnected, Junior

asks "Same Batt?" to know if the newly connected battery has
the same parameters as the previous one. If the user answers
"Yes", Junior will reload the settings from the non-volatile
memory, as well as the battery’s stored state of charge before
being disconnected.

2) SBS Battery (Smart Battery System)

When an SBS is connected, Junior recognizes it as such, and retrieves
chemistry and nominal capacity information from the battery. This data
is displayed on the OLED screen with the related charging voltage and
current. If the chemistry data and nominal capacity are correct, the
user validates them by pressing "Yes/Enter".

If there is any inconsistency between retreived data and label on the
pack, the user can change the battery’s nominal capacity (therefore
the charging current), but not its chemistry (i.e. the charging voltage).
Once the capacity is changed, the user presses "Forward/Next" (>)
and then "Yes/Enter" to validate the corrected parameters.

3) AC Line

Junior can accept line voltage between 90 and 260 Vac, and between
48 to 63 Hz. Input is protected by a 250V/2AT fuse (5mm x 20mm
glass cartridge type). The line voltage connector is 3-pole IEC with
earth.