120 Programming
Chapter
4
SR865A DSP Lock-in Amplifier
Strip Chart Commands
GSPD(?) { i }
The
GSPD i
command sets the horizontal time/div according to the table below.
i time/div
i time/div
0 0.5
s
9 10
min
1
1 s
10
30 min
2
2 s
11
1 hour
3
5 s
12
2 hour
4
10 s
13
6 hour
5
30 s
14
12 hour
6
1 min
15
1 day
7
2 min
16
2 day
8 5
min
Example
GSPD 6
Set the strip chart to 1 min/div horizontal scale
GSPD?
Returns the horizontal scale i
GSCL(?) [ DAT1 | DAT2 | DAT3 | DAT4 | j ] { , x }
The
GSCL j, x
command sets the vertical scale of data channel j to x/div. The scale will
be set to the nearest allowed scale in a 1-2-5 sequence.
The value of j (0
–
3) corresponds to the
DAT1
(green),
DAT2
(blue),
DAT3
(yellow) and
DAT4
(orange) data channels.
Example
GSCL DAT2, 0.1
Set the vertical scale for data channel 2 (blue) to 0.1/div
GSCL 1, 0.09
GSCL 1, 0.12
GSCL? 1
Returns the vertical scale for data channel 2 (blue)
GSCL? DAT2
GOFF(?) [ DAT1 | DAT2 | DAT3 | DAT4 | j ] { , x }
The
GOFF j, x
command sets the vertical offset of data channel j to x.
The value of j (0
–
3) corresponds to the
DAT1
(green),
DAT2
(blue),
DAT3
(yellow) and
DAT4
(orange) data channels.
Example
GOFF DAT3, 0.1
Set the vertical offset for data channel 3 (yellow) to 0.1
GOFF 2, 0.1
GOFF? 2
Returns the vertical offset for data channel 3 (yellow)
GOFF? DAT3
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...
Page 118: ......
Page 172: ......
Page 186: ...168 The FFT Display Appendix B SR865A DSP Lock in Amplifier...
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