Instrument Outputs - Ametek 7280 Instruction Manual

Chapter 6, COMPUTER OPERATION

6.4.05 Instrument Outputs

X[.]
XER
Y[.]
YER
6-18
is in single or virtual reference mode, the selection is according to the following
tables:
n = 1 (i.e. CH1 output)
1
n Signal
2
0 X % (2.5 V FS)
n 2 (i.e. CH2output)
1
n Signal
2
1 Y % (2.5 V FS)
2 Magnitude % (2.5 V FS)
When the fast analog output mode is turned on (FASTMODE 1) and the instrument
is in dual harmonic or dual reference mode, the selection is fixed according to the
following tables:
n = 1 (i.e. CH1 output)
1
n Signal
2
0 X1 % (2.5 V FS)
n 2 (i.e. CH2output)
1
n Signal
2
10 X2 % (2.5 V FS)
X channel output
In fixed point mode causes the lock-in amplifier to respond with the X demodulator
output in the range ±30000, full-scale being ±10000.
In floating point mode causes the lock-in amplifier to respond with the X
demodulator output in volts or amps.
X channel output - enhanced resolution
This command, which is only active when the X channel × 10 output expansion is
turned ON, causes the lock-in amplifier to respond with the X demodulator output in
the range ±300000, full-scale being ±100000. No floating-point version of the
command is available.
Y channel output
In fixed point mode causes the lock-in amplifier to respond with the Y demodulator
output in the range ±30000, full-scale being ±10000.
In floating point mode causes the lock-in amplifier to respond with the Y
demodulator output in volts or amps.
Y channel output - enhanced resolution
This command, which is only active when the Y channel × 10 output expansion is
turned ON, causes the lock-in amplifier to respond with the Y demodulator output in
the range ±300000, full-scale being ±100000. No floating-point version of the
command is available.