INSTRUCTION
MANUAL
-
MODEL
DLP
400-5-7
50A
14
4.3
AMMMETER
CALIBRATE
A.
Use
an
external
100V
source
and
an
external
ammeter
for
calibration.
B.
Turn
the Dynaload
adjust
to
the minimum
counter
clockwise
position
C.
Set
the
mode
selector
switch
to
the
constant
current
0-5A
position
D.
With
the
ammeter
range
selector
switch
at
0.6A,
increase
the
load
until
the
external
ammeter
reads
0.4A.
E.
Adjust
R38
so
that
the
front
panel
ammeter
also
reads
0.4A.
F.
Switch
the
ammeter
selector
switch
to
1.8A,
and
adjust
the
load
current
until
the external
ammeter
reads
1.2A.
G.
Adjust
R40
until
the
front
panel
ammeter
also
reads
1.2A.
H.
With
the
ammeter range
selector
switch set
at
6A,
increase
the
load
current
to
4A
as indicated
on
the external
ammeter,
I.
Adjust
R42
until
the
front
panel
ammeter also
reads
4A
