Ametek 7124 Instruction Manual page 223

table:
n Slope
0 6 dB/octave
1 12 dB/octave
2 18 dB/octave
3 24 dB/octave
When:
a) The fast output filter mode is turned on, or
b) Noise measurement mode is turned ON (NOISEMODE 1)
the selection is according to the following table:
n Slope
0 6 dB/octave
1 12 dB/octave
SRATE[.] [n] Oscillator frequency and amplitude sweep step rate
In fixed point mode, sets the sweep rate in milliseconds per step, and in floating
point mode sets the rate in seconds. The range of n is 1 to 1000000 (1 ms to 1000 s)
ST Report status byte
Causes the lock-in amplifier to respond with the status byte, an integer between 0
and 255, which is the decimal equivalent of a binary number with the following bit-
significance:
Bit 0 Command complete
Bit 1 Invalid command
Bit 2 Command parameter error
Bit 3 Reference unlock
Bit 4 Overload
Bit 5 New ADC values available after external trigger
Bit 6 Not used
Bit 7 Data available
STR [n] Storage interval control
Sets the time interval between successive points being acquired into the curve buffer.
n specifies the time interval in microseconds with a resolution of 1 µs. In fast curve
buffer mode, the shortest time that can be specified is 1 µs; in standard mode it is
1000 µs, or 1 ms
SWEEP [n] 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
n Sweep status
7 Pause frequency sweep and amplitude sweep
9 Link frequency sweep to curve buffer acquisition
Appendix F, ALPHABETICAL LISTING OF COMMANDS
F-21