Fluke 8021B - Page 31

8021
B
2-27. INITIAL
CHECK-OUT
PROCEDURE
2-28. Now
that
you have
installed
the battery,
and
know where
everything is,
and how it
works, let’s make
sure that
the unit is
working properly.
We’U run
through
a
simple
check-
out procedure
starting
with turn-on. No
equipment other
than test leads
will be required.
If
a
problem is
encountered,
please check
the
battery, fuse,
switch settings,
and test
lead
connections before
contacting
your
nearest
John Fluke
Service Center.
NOTE
This
procedure is
intended to
verify
overall
instrument
operation, andis
not
meant as a
substitute
for
the formal
Performance Test
given in
Section 4.
Limits shown
exceed the
specifications
because the
procedure uses one
measurement function to
check
another.
1 .
Set the
powerswitch to
OFF
and all
range and
function switches to
the released
(out)
position.
2. Set
the
power switch to
ON and
observe
the display, it
should read
00.0
±0. 1
.
3.
Connect the
red test
lead to the
V/ft input
terminal.
4. Touch
the red
probe tip to
the
COMMON
input terminal, and
sequentially
depress each
of the six
range
switches
starting at the top
(20
Mft).
The display
should read
zero ±1 digit
and the
decimal
point should
be positioned as
follows:
a.
20 M
-0.00
b.
2000 k
-
000
e.
200 k
-
00.0
d. 20 k
-
0.00
e. 2k
-
.000
f. 200 n
-
00.0
5.
Remove the
probe from
the
COMMON
input terminal.
6.
Depress
the lower
function
button (ft) and
sequentially
depress each of the
six
ranges switches.
The
display should
read 1 as
the most significant
digit with no
other numbers
shown. This
is the
standard
overrange indication.
Notice that the
decimal
point changes
poistion
with the
range switch
settings just as it did
in step4
of this
procedure.
7.
Touch the red
probe tip
to the
COMMON
input terminal, and
sequentially
press each
of the range
buttons.
The display
should read
zero
at
each range
setting.
Lead resistance
may be
sufficient
to cause a
one or two
tenths (G.l or 0.2ft)
indication
on
the 200ft
range.
8.
Touch
the
red
probe tip to
the mA
input connector
and
press
the 200ft
switch.
The display
should read
99.0 to
101.0.
9. Select the 2 kft
range. The
display
should read .099 to
.101.
Remove the probe
from
the mA input
connector.
2-15