Audio Precision Portable One Plus Access User Manual

Gen Load
The Gen Load (Device Input Impedance) measurement function is
available by pressing the FUNCTION GEN LOAD key.
The Gen Load function is used to measure the input impedance of a
device-under-test. It does this by generating a signal through the
internal 600 Ω source impedance of the generator. Then, the voltage
at the output is measured. The input impedance of the
device-under-test can then be calculated as a voltage divider.
The upper left section of the display shows the measured input
impedance in ohms. No other units are available, and the upper left
soft key has no effect. The upper right section of the display shows the
measured frequency of the signal. The only available unit is Hz, but
the upper right soft key can be used to turn the reading off.
Figure 4-35. Main Panel in GEN LOAD Function
FREQUENCY
COUNTER
PRIMARY
READING
DETECTOR
GENERATOR
OUTPUTS
B
A
INPUT
RANGING
LCD DISPLAY
INTERNAL
JUMPER
INPUT
MONITOR
SPEAKER/
HEADPHON
E
READING
MONITOR
600
DUT'S LOAD
RESISTANCE
CHANNEL A
DUT'S LOAD
RESISTANCE
CHANNEL B
ANALOG
GENERATOR
Figure 4-36. Block Diagram of Generator Loading Measurement
4
Operation
Controlling the Analyzer : Gen Load Operation
Portable One Plus Access User's Manual 4-55
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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