Required Hardware; Power-Up Configuration - Fluke 8506A Instruction Manual

8506A
Table
2-1. Controls,
Indicators,
and Connectors
(coni)
ITEM
[PB|^^PP8p|
DESCRIPTION
18
POWER
Switch
Push ON/push
OFF.
Calibration
mode
must be
off
before cycling power
on
or
off.
19
Scan Advance
Output TTL
compatible
control signals
to external scanner (50-ohm
output
impedance).
20
Chassis
Ground
Binding post
for
ground
connections.
21
Remote
Interface
Connector on
optional
remote
interface module.
22 Power
Connector
Three-prong connector
accepting
line
cord
with
ground
wire.
23 Line Fuse
Use 1/2A Slow Blow
for
100
or
120V
ac,
1/4A
Slow Blow
for
220
or
240V
ac.
Refer
to
Fuse Replacement
in
Section
4.
24
Calibration Switch
Activates Calibration
mode
(AVG/(CAL)
annunciator
flashes).
25
External Trigger
Enabled by
front panel
MANUAL/EXTERNAL
push
button.
26
Rear Analog
Input
Alternate connections
for
ail
front
panel inputs (enabled
when
Rear
Input
Selector on
front panel
is
pushed
in).
EXT REF
H!
and
LO
inputs are
also
included, but are not switched.
27 Rear
Input
Fuse
Use
AGC
1.5A.
input connections. Refer
to
Fuse Replacement
in Section
4 before replacing
any
fuse.
2-16.
Required Hardware
2-17.
The
multimeter must be equipped with
the
following
modules
for
standard operation
(ac volts
and
dc
volts);
1.
Controller (blank display
if
not
installed)
2.
Active
Filter
(Error 2
if
not
installed)
3.
A/
D
Converter (Error
5
if
not
installed)
4.
Isolator (Error 9
at
power-up
if
not
installed)
5.
DC
Signal Conditioner (Error
9
if
not
installed)
6.
Thermal
True-RMS
Converter
NOTE
The Thermal True-RMS
Converter
is
the
only
ac converter
that can he used
in
the
8506
A.
If
another type
of
ac converter
is
installed
in
the
8506
A,
an
Error
E
condition
will he
specified
at
power-up
or
reset.
2-18. Additional modules
are necessary
when
using
the
multimeter
in
resistance or dc current functions or
for
remote control The
resistance
and dc
current modules
(Options 02 and 03
respectively) cannot be
installed at the
same
time.
If
it is
necessary
to check,
install
or
replace
modules,
refer to
Module
Installation
and Removal
procedures
in
Section
4.
2-19.
An
"Error
9" indication
appears
in
the
multimeter
display
whenever
a
function
is
selected
and
the respective
function
module
is
faulty or
missing. Refer
to Error
Codes
later in this section for error descriptions
and
remedies.
At
power-up,
the multimeter
identifies the
hardware
configuration by
displaying "C'"and
a
series
of
alphanumerics.
The Thermal
True-RMS
Converter
is
identified as
"A". Optional modules
are
identified
by
the
respective option number.
An "8" appears
in the
exponent
display
at
power-up
or
reset
when
the Isolator
is
installed.
For
example,
a
multimeter
configured with
the
Current Shunts (Option
03),
the
IEEE Remote
Interface
(Option
05),
and
the Isolator
is
identified with a power-up
display of
"C35A
8".
2-20.
Power-Up
Configuration
2-21.
At power
initialization, or
whenever
the
RESET
button
is
pushed,
the
multimeter assumes
the
power-up
configuration.
Basically,
the
instrument
assumes
the
V
DC
function,
1000V manual
range,
filter
mode
FO,
sample
factor
7,
with
all
modes
and
values disabled. The
power-up
(or reset) configuration
is
fully defined
in
Table
2
- 2
.
2-4