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8505A
Table
2-4,
Error
Codes
MOMENTARY ERROR
CONDITIONS
(The reading
in
progress
is
aborted, but
multimeter operation
is
automatically restored with the next
trigger.
The
function
annunciator remains on during
a
momentary
error condition.)
CODE
FAULT
SOLUTION
Error
0
V
DC/Ohm
Zero, zero
attempted
in
wrong
function
(not
V
DC
or
OHMS)
or
an overrange has
been
entered.
Check
function.
Only V
DC
and
OHMS
are
permissible.
Error
1
Store attempted during overload
condition.
Change
to
higher range
or
(if
storing
cal
correction
factors)
use
lower value source.
Error
6
Display overflow
error.
Check
offset
and
scaling values.
Error
7
External
Reference
error
-
voltage
on one
input
exceeds 20
V
dc.
Revise
external
reference
input.
Error 8
Controller
module
is
faulty.
Power
off;
replace
controller
module.
Error
b
Illegal
push
button
sequence
in
Calibration
mode.
Wait
till
display
clears.
Use
correct
sequence.
Error
C
invalid
push-button sequence,
or
illegal
value
entered.
Wait
till
display
clears.
Use
correct
sequence
or value within
limits.
Error
d
Calibration
Memory
faulty
or not
installed.
Occurs
when
storing
into,
or recalling
from, Calibration
Memory,
or
at
power-up.
Replace
or
install
Calibration
Memory
chip.
Error
F
Cai
Memory
check-sum
problem.
Try
new
power-up.
If
necessary,
reprogram
Cal
Memory. Replacement
of
Calibration
Memory
may
be
required.
Error
H
Ohms
connection problem.
Verify that
all
connections
are proper.
Check
input fuses.
Check
input lead
polarity
in
four-
terminal
connections.
LATCHING ERROR CONDITIONS
(A
valid
function
must be
selected
to
restore
multimeter operation
error condition.)
All
function
annunciators
areoff during
a
latching
Error
System
error,
usually
appears
at
power-up
or
reset.
Repeat power-up
or
reset.
Error
2
Filter
module
faulty or
not
installed.
Power
off;
replace or
install
filter
module.
Error
3
DC
Signal Conditioner
module
faulty
or not
installed.
Power
off;
replace
or
install
DC
Signal
Conditioner module.
Error
4
OHMS,
A
DC,
or
A
AC
error.
Check
for
improper
input
level.
Check
function
causing
error indication.
Applicable
module
may
need
replacement
or
installation.
Error
5
Analog
to Digital
Converter
Module
error.
Power
off;
replace or
install
Analog
to Digital
Converter module.
Error
9
Function
selection
error.
The
function
module
selected
is
faulty
or not
installed.
V
DC
problem
causes
Error
3.
Select
valid
function
to clear error condition.
Power
off;
replace or
install
appropriate
module.
Error
E
More
than
one
ac
converter,
or the
wrong
ac
converter,
is
installed.
Also
appears
when
Calibration
Memory
module
is
installed.
Power
off,
remove one ac
converter, or
install
correct converter,
or
remove
the Calibration
Memory
module
(the
multimeter uses
a
separate
Calibration
Memory
as part of the
Controller).
2-7
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