KEL102
&
KEL103
Calibration
Instruction
Testing
equipment:
1.
Six
and
a
half
multimeter;
2.
One
power
supply
with
adjustable
output
voltage
0
‐
100V,
current
0
‐
12A
and
constant
current.
Calibration
Procedures
Before
the
electronic
load
is
powered
on,
press
and
hold
the
“ESC”
key
to
enter
the
calibration
mode.
At
the
same
time,
the
“ESC”
key
light
is
on,
and
00001G
is
displayed
on
the
lower
right.
1.
Verify
the
voltage
value
of
DA
when
the
low
range
is
0.1V:
Method:
set
the
power
supply
to
1V
and
the
maximum
output
to
1A,
set
the
multimeter
to
the
voltage
range,
combine
the
power
supply
and
the
multimeter
into
the
load
interface
at
the
same
time,
turn
on
the
ON/OFF
switch,
and
adjust
the
knob
to
display
the
voltmeter
voltage
as
0.1V,
which
can
be
adjusted
by
pressing
the
left
and
right
keys
to
increase
or
reduce.
Then
press
ENTER
to
enter
the
next
check,
or
press
ESC
to
return
to
the
previous
check.
2.
Check
the
voltage
value
of
DA
when
the
high
level
is
0.1V:
Method:
set
the
power
supply
to
1V
and
the
maximum
output
to
1A.
Set
the
multimeter
to
the
voltage
range.
Combine
the
power
supply
and
the
multimeter
into
the
load
interface
at
the
same
time.
Turn
on
the
ON/OFF
switch
and
adjust
the
knob
to
make
the
voltmeter
voltage
display
0.1V.
And
press
the
left
and
right
keys
to
adjust
the
increased
and
reduced
value.
Then
press
ENTER
to
enter
the
next
check,
or
press
ESC
to
return
to
the
previous
check.
3.
Verify
DA
and
AD
when
the
maximum
voltage
is
18V:
Method:
set
the
power
supply
to
20V
and
the
maximum
current
output
to
1A.
Set
the
multimeter
to
the
voltage
range.
Combine
the
power
supply
and
the
multimeter
into
the
load
interface
at
the
same
time.
Turn
on
the
ON/OFF
switch
and
adjust
the
knob
to
make
the
voltage
on
the
voltmeter
display
18V.
And
press
the
left
and
right
keys
to
adjust
the
increased
and
reduced
value.
Then
press
ENTER
to
enter
the
next
check,
or
press
ESC
to
return
to
the
previous
check.
