Section
4
Maintenance
WARNING
THESE
SERVICE INSTRUCTIONS
ARE
FOR USE BY QUALIFIED
PERSONNEL ONLY.
TO
AVOID
ELECTRIC
SHOCK, DO NOT PERFORM ANY
SERVICING OTHER THAN
THAT
CONTAINED IN
THE OPERATING INSTRUCTIONS UNLESS YOU ARE
QUALIFIED
TO
DO
SO.
4-1.
INTRODUCTION
4-2. This section of
the
manual contains maintenance
information
for both
the Model
8010A and the
Model
8012A
Digital
Multimeters.
This maintenance
information
is divided
into
service information,
general
maintenance,
a performance test, a calibration
procedure, and a
troubleshooting procedure. The
Performance
Test is
recommended as an
acceptance
test
when
the instrument is
first
received, and later
as a
preventive
maintenance tool to
verify proper instrument
operation. A
1-year calibration cycle is
recommended
to
maintain
the specifications
given in Section
1.
The
test
equipment
required
for both the performance test and
calibration
procedure is listed in
Table
4-1.
If the
recommended
equipment
is
not available, instruments
having
equivalent
specifications may
be
used.
4-3.
SERVICE
INFORMATION
4-4,
The
8010A and 8012A
are both warranted for a
period
of
1-year
upon delivery to
the
original purchaser.
Conditions of
the warranty are
given at the front of this
manual.
4-5.
Malfunctions which
occur
within the limits
of
the
warranty
will be corrected
at
no
charge.
Mail
the
instrument
(post paid)
to your nearest authorized Fluke
Technical
Service
Center. A list of
Fluke
Technical
Service
Centers is
given
in
Section 5. Dated proof
of
purchase is
required
for all in-warranty repairs.
4-6,
Factory
authorized service
centers
are also
available for
calibration and/or
repair of instruments
that are beyond
their warranty period. Contact your
nearest
authorized
Fluke
Technical
Service Center for a
cost quotation.
Ship
the
instrument
and
your remittance
according to
the
instructions given by the Service Center.
4-7.
GENERAL
INFORMATION
4-8.
Interior Access
NOTE
To
avoid contaminating
the pcb with
oil
from
the
fingers,
handle
it by the
edges
or wear
gloves.
If
the pcb does become
contaminated,
refer
to
the cleaning
procedures
given
later in
this section.
4-9.
CALIBRATION ACCESS
4-10.
Use
the following procedure to gain access
to
the
calibration
adjustments of your instrument:
1.
Set
the POWER switch to
OFF.
2.
Disconnect
the power cord from rear of the
instrument.
3
.
Remove
screw
located directly
below the
power
receptacle.
4.
Grasp
the front panel and
slide the instrument
out of the
case.
5.
Turn the
instrument upside down.
6.
All
calibration adjustments are
now
accessible.
NOTE
With the
power cord replaced, the instrument
is
operational
for
troubleshooting.
WARNING
DANGEROUS
VOLTAGES
EXIST
ON
THE
PCB
ASSEMBLIES WHEN ENERGIZED.
EXERCISE EXTREME
CARE
WHEN
WORKING ON
AN ENERGIZED CIRCUIT.
7.
To reassemble,
reverse the
previous
procedures
in a logical order.
4-1
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