Audio Precision Portable One Plus Access User Manual

To simplify connection, analog test cables are often marked with the
following color code:
.
Left in: Blue (sometimes black is used instead)
.
Left out: Yellow
.
Right in: Red
.
Right out: Green
When you connect your device-under-test, it is a good idea to select
the proper input and output impedances and the balanced/unbalanced
configuration for the generator. The input impedances are controlled
by the Main Panel in Level function. Follow this diagram to get there:
The lower center soft key controls the termination of the channel A
input. The lower right soft key controls the termination of the channel
B input. Each input can be selected as ‘HiZ’ or ‘LoZ’. The HiZ
selection provides input terminations near 100 kΩ. The LoZ selection
provides input terminations of 600 Ω.
In most cases, you will want to use HiZ terminations. The main
exception is when you are working with equipment that requires
600 Ω terminations. Check your device’s output specifications to see if
a termination of 600 Ω is required.
1
2
Press the 'LEVEL' button.
This will select the LEVE
L
measurement function.
If you do not see this
screen, press 'PANELS'
until it appears.
FREQUENCYFREQUENCY
FUNCTION
ANALOG
dBr ZERO
350 Vpk MAX
PRINT
INSTRUMENT MODE
PANELS BARGRAPH SWEEP
MONITOR
CONTRAST
RECALL
SAVE
CAT II
FUNCTION
dBr ZERO
LEVEL
PHASE
RATIO
XTALK
GEN
LOAD
THD+N
SINAD
IMD
W+F
AC MAINS
CHECK
AMPL
NOISE
ANALYZER INPUTS
GENERATOR OUTPUTS
OUTPUT
A
MUTE
B
GEN
AB
INPUT
AMPLITUDE
DEC
+10dB
INC
-10dB
FREQUENCY
-10
INC
10
x
.
.
DEC
BA
AB
!!
CAT II
PRINT
INSTRUMENT MODE
PANELS BARGRAPH SWEEP
MONITOR
CONTRAST
RECALL
SAVE
CAT II
FUNCTION
dBr ZERO
LEVEL
PHASE
RATIO
XTALK
GEN
LOAD
THD+N
SINAD
IMD
W+F
AC MAINS
CHECK
AMPL
NOISE
ANALYZER INPUTS
GENERATOR OUTPUTS
OUTPUT
A
MUTE
B
GEN
AB
INPUT
AMPLITUDE
DEC
+10dB
INC
-10dB
FREQUENCY
-10
INC
10
x
.
.
DEC
BA
AB
!!
CAT II
!
PORTABLE ONE PLUSPORTABLE ONE PLUSPORTABLE ONE PLUS
PORT ABLE ONE PLUS
Figure 3-2. Selecting input impedance
3
Connecting
Analyzer Inputs and Generator Outputs External Connections
Portable One Plus Access User's Manual 3-3
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Audio Precision Portable One Plus Access Specifications

General

Brand	Audio Precision
Model	Portable One Plus Access
Category	Test Equipment
Language	English