110 Programming
Chapter
4
SR865A DSP Lock-in Amplifier
PSTF(?) [ j ] { , f { HZ | KHZ | MHZ } }
The
PSTF j, f
command sets a frequency preset to f. These preset buttons are available
whenever the internal frequency keypad is displayed. The parameter j (0
–
3) selects a
preset F1
–
F4. The value of f will be rounded to 6 digits or 0.1 mHz, whichever is greater.
The value of f is limited to 1 mHz
≤ f ≤
4 MHz.
Example
PSTF 1, 12.34 KHZ
Set frequency preset F2 to 12.34 kHz
PSTF 1, 12340
PSTF? 1
Returns the frequency preset F2 in Hz
PSTA(?) [ j ] { , v { NV | UV | MV | V } }
The
PSTA j, v
command sets a sine out amplitude preset to v. These preset buttons are
available whenever the sine out amplitude keypad is displayed. The parameter j (0
–
3)
selects a preset A1
–
A4. The value of v will be rounded to 3 digits or 1 nV, whichever is
greater. The value of v is limited to 1
nV ≤ v ≤ 2.0
V.
Example
PSTA 2, 12.3 MV
Set amplitude preset A3 to 12.3 mV
PSTA 2, 0.0123
PSTA? 2
Returns the amplitude preset A3 in Volts
PSTL(?) [ j ] { , v { NV | UV | MV | V } }
The
PSTL j, v
command sets a sine out dc level preset to v. These preset buttons are
available whenever the sine out dc level keypad is displayed. The parameter j (0
–
3)
selects a preset L1
–
L4. The value of v will be rounded to 3 digits or 0.1 mV, whichever is
greater. The levels may be programmed from
−5.00
V to +5.00 V.
Example
PSTL 0, 1.23 V
Set dc level preset L1 to 1.23 V
PSTL 0, 1230 MV
PSTL? 0
Returns the dc level preset L1 in Volts
Summary of Contents for SR865A
Page 5: ...Safety and Preparation For Use iii SR865A DSP Lock in Amplifier...
Page 6: ...iv Safety and Preparation For Use SR865A DSP Lock in Amplifier...
Page 54: ...36 Getting Started Chapter 1 SR865A DSP Lock in Amplifier...
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Page 186: ...168 The FFT Display Appendix B SR865A DSP Lock in Amplifier...
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