Ametek 7280 Instruction Manual page 156

Chapter 6, COMPUTER OPERATION
FSTART[.] [n]
FSTOP[.] [n]
FSTEP[.] [n
SRATE[.] [n]
SWEEP [n]
6-22
Oscillator frequency sweep start frequency
Sets the start frequency for a subsequent sweep of the internal oscillator frequency, in
the range 0 to 2.000 MHz.
In fixed point mode, n is in millihertz and in floating point mode n is in hertz.
Oscillator frequency sweep stop frequency
Sets the stop frequency for a subsequent sweep of the internal oscillator frequency,
in the range 0 to 2.000 MHz.
In fixed point mode, n is in millihertz and in floating point mode n is in hertz.
n ] Oscillator frequency sweep step size and type
1 2
The frequency may be swept either linearly or logarithmically, as specified by
parameter n . The step size is specified by parameter n
2
Log sweep n = 0
2
In fixed point mode, n
In floating point mode n
Linear sweep n = 1
2
In fixed point mode, n
In floating point mode n
Linear seek sweep n = 2
2
In fixed point mode, n
In floating point mode n
The seek sweep mode automatically stops when the signal magnitude exceeds
50% of full scale. This mode is most commonly used when setting up the virtual
reference mode.
Oscillator frequency and amplitude sweep step rate
Sets the sweep rate in milliseconds per step according to the following table:
Analog Outputs Mode
NORMAL
FAST
Oscillator frequency and amplitude sweep control
n Sweep status
0 Stop
1 Start/continue frequency sweep
2 Start/continue amplitude sweep
3 Start/continue frequency sweep and amplitude sweep
5 Pause frequency sweep
6 Pause amplitude sweep
7 Pause frequency sweep and amplitude sweep
9 Link frequency sweep to curve buffer acquisition
is the step size in thousandths of a percent.
1
is in percent. The range of n
1
is the step size in millihertz.
1
is in hertz. The range of n
1
is the step size in millihertz.
1
is in hertz. The range of n
1
Legal range for n
1 to 1000000 (1 ms to 1000 s)
140 to 1000000 (140 ms to 1000 s)
.
1
is 0 to 100.00%
1
is 0 to 10 kHz
1
is 0 to 10 kHz
1