Ametek 7124 Instruction Manual page 58

Chapter 5, FRONT PANEL OPERATION
5-4
Output Description
Numeric Displays only:
R%
Resultant (Magnitude) output as a percentage of full-scale sensitivity
N%
Noise output as a percentage of full-scale sensitivity
°
Phase output in degrees
X%
X channel output as a percentage of full-scale sensitivity
Y%
Y channel output as a percentage of full-scale sensitivity
R
Resultant (Magnitude) output in volts or amps
Numeric and Bar-Graph Displays:
X
X channel output in volts or amps
Y
Y channel output in volts or amps
N
Noise output in volts or amps per root hertz
ADC1
ADC1 input, ±10.000 V full-scale
ADC2
ADC2 input, ±10.000 V full-scale
ADC3
ADC3 input, ±10.000 V full-scale
ADC4
ADC4 input, ±10.000 V full-scale
Bar-Graph Displays only:
MAG
Resultant (Magnitude) output in volts or amps
PHA°
Phase output in degrees
Table 5-1, Output Display Choices - Single Reference Mode
The instrument provides a means of switching quickly between the following pairs of
outputs, simply by pressing simultaneously both ends of the
their description:-
X %fs
Y %fs
R %fs
Noise %fs
In the center right-hand section of the Main Display the current reference frequency,
as measured by the reference frequency meter, is shown, together with the current
levels of X and Y output offsets.
Warning Indicators
Along the top edge of the Main Display are four warning indicators. Input Overload
and Output Overload are normally shown in dimmed text, but in the event of an
overload occurring, flash on and off. Similarly, Locked appears in green text when
the instrument is locked to a suitable reference, and flashes when the reference
channel is unlocked. Remote is normally shown in dimmed text but appears in bright
text when the instrument is being operated via one of the computer interfaces.
Controls
AC GAIN
The AC Gain control is always displayed in the top left-hand corner of the
Main Display. If the automatic AC Gain control is turned off (using the Signal
Channel menu - see section 5.3.04), then this control allows the AC Gain to be
adjusted from 0 dB to 90 dB in 6 dB steps, although not all settings are available at
all full-scale sensitivity settings. If the automatic control is turned on, then the
control cannot be adjusted, but the present value of AC Gain is still displayed. In
either mode, changing the full-scale sensitivity may result in a change to the AC

X volts or amps

Y volts or amps

R volts or amps

Noise volts/Hz or amps/Hz
keys adjacent to