Fluke 8505A - Page 11

8505A
Table 2-1. Controls, Indicators, and
Connectors (cont)
B
DESCRIPTION
5
FUNCTION Push
Buttons
Used to select any
of six measurement
functions: voltage (V DC, V AC,
or V DC and V AC), current
(A DC or A AC), or resistance
(OHMS).
6
RANGE
Push Buttons
AUTO
toggles into/out of
Autoranging mode, changing range only
when
necessary. The up/down
buttons exit Autoranging and
increase/
decrease one range with
first use, step up/down one
range with each
additional
use.
7
ZERO Push
Button
Used to
toggle into/out
of the Zero mode (V DC or OHMS only).
A new
zero value is
stored each time
the mode is entered. This
value is applied
to the
selected range
and to all higher ranges within the same function.
Also used to
recall zero values.
Refer
to
text for
use with Calibration
Memory.
8 MEMORY Push
Buttons
STORE is used to initiate memory
entry
for
displayed values or numeric
entries. RECALL commands display of a
memory value. HI and LO
are used when storing or
recalling limits, or when recalling peak values.
Average
Push Button
AVG
toggles into/out of
Averaging
mode.
9 Input
Terminals Measurement connection
terminals.
10 Guard Selector
GUARD
is
connected to SENSE LO when
disengaged (out); GUARD
is floated to allow external connection when engaged (in).
11
Ohms
Selector Push
in for 4-wire ohms measurement using
OHMS SENSE
(HI,
LO) and
OHMS
SOURCE
(HI,
LO)
terminals. Push again to disengage
for 2-wire ohms measurements using OHMS
SENSE (HI,
LO)
terminals.
12
Rear Input Selector Push in to
connect rear
analog
input
terminals and disconnect front
terminals.
Push
again
to
disengage, reconnecting
front
terminals and
disconnecting
rear terminals.
Position of the switch can
be
sensed
remotely.
13
Current/Ohms Fuse Use AGC 1.5A.
14 MODIFIERS
Push
Buttons
SAMPLE and FILTER modify the
manner
in
which a reading is taken
(measurement
parameters). EXT REF, OFFSET, and SCALING
modify the reading value
(mathematic operations). LIMITS and
PEAK
modify
the usage
of
the
measurement value (special operations).
15 Numeric Entry Push Buttons
When enabled
by
initially pushing the STORE button, these push
buttons can
be
used to enter numerics, exponents and
related polarity
signs.
16 CONTROL Push Buttons
RESET
initiates
a
power-up reset.
LCL/RMT usage depends
on the remote interface in
use:
a. If the
IEEE Interface
(-05)
is used, LCL/RMT toggles from remote
to
local, but not from
local to remote.
b.
If the Bit
Serial
(-06)
or Parallel
(-07)
Interface is used, LCL/RMT
toggles
between local and remote.
2-3