Ametek 7270 Instruction Manual page 52

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
Output Description
Numeric Displays only (continued):
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 changes to Unlock in red
flashing text 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

X volts or amps

Y volts or amps

R volts or amps

Noise volts/Hz or amps/Hz
keys adjacent to