GRAUPNER 6442 Instructions D'utilisation page 24

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_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i C d
a u t o m a t i c
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C : 2 . 5 A
l i m i t e d
+
-
INC
DEC
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i C d
m a n u a l
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C : 2 . 5 A
+
-
INC
DEC
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i C d
d i s c h a r g e
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
1 . 0 0 A
+
-
DEC
INC
ENTER
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
N i C d
c y c l e
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
C : 2 . 5 A
D : 1 . 0 0 A
+
-
DEC
INC
ENTER
24
Ni-Cd automatic program
In this program the charger detects the type of Ni-Cd
battery connected to it, and adjusts the charge current
accordingly to avoid overcharging the pack.
The maximum charge current can be set before you
connect the battery to be charged. This is done using the
INC / DEC buttons; the range available is 0.1 A to 10 A, or
no restriction. The charge process is terminated auto-
matically in accordance with the values already set for
„Ni-Cd Delta Peak cut-off voltage".
Ni-Cd manual program
Select this program when you simply wish to recharge a
battery using the set charge current.
You can adjust the charge current using the INC / DEC
buttons, but only before you connect the pack for
charging. The range available is 0.1 A to 10 A.
The charge process is terminated automatically in
accordance with the values already set for „Ni-Cd Delta
Peak cut-off voltage".
Ni-Cd discharge program
The typical purpose of this program is to determine the
residual capacity of a transmitter, receiver or drive
battery, or to discharge the pack to a defined level.
4 . 8 V
In this program the charger discharges the pack using the
+
-
set discharge current (0.10 ... 5.00 A, left of screen) until
INC
DEC
its voltage falls to the set final discharge voltage (0.1 ...
36.0 V, right of screen).The set final discharge voltage
should be a value of around 0.9 ... 1,1 V per cell, in order
to avoid the pack becoming deep-discharged. Deep-
discharging a pack runs the risk of reversing individual
cells, i.e. they exhibit reversed polarity.
NiCd conditioning program
This program is designed to optimise the capacity of a
ENTER
battery, and balance the state of its component cells.At
top right you can set use the INC or DEC buttons to
INC
INC
determine whether the conditioning program is to start
or
with a charge or discharge cycle. After this you set the
DEC DEC
number of cycles from 1 to 5 (e.g., if you set three cycles,
the pack will be charged and discharged three times). The
program discharges the battery using the set discharge
C > D
1
current stated on the right of the screen (0.10 ... 5.00 A),
and then recharges it using the charge current (0.1 ...
+
-
10.0 A) shown on the left of the screen. The charge
INC
DEC
process is terminated automatically in accordance with
the values already set for „Ni-Cd Delta Peak cut-off
voltage". The discharge cut-off voltage is set in the Ni-
Cd discharge program. The method of reading out the
values for the actual cycle is described in the section
„Screen displays".

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