Stanford Research Systems SR865A Operation Manual page 130

4 mhz dsp lock-in amplifier
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112
Programming
ICUR(?) { 1MEG | 100MEG | i }
The
ICUR i
(10 nA) (i=1).
Example
ICUR 100MEG
ICUR 1
ICUR?
ILVL?
The
ILVL?
Example
ILVL?
SCAL(?) { i }
The
SCAL i
Example
SCAL 6
SCAL?
SR865A DSP Lock-in Amplifier
command sets the current input gain to 1 MΩ (1 μA) (i=0) or 100 MΩ
Set the current input gain to 100 MΩ (10 nA)
Returns the current input gain i
query returns the signal strength indicator from lowest (0) to overload (4).
Returns the signal strength indication
command sets the sensitivity according to the table below.
i
sensitivity
0
1 V [μA]
1
500 mV [nA]
2
200 mV [nA]
3
100 mV [nA]
4
50 mV [nA]
5
20 mV [nA]
6
10 mV [nA]
7
5 mV [nA]
8
2 mV [nA]
9
1 mV [nA]
10
500 μV [pA]
11
200 μV [pA]
100 μV [pA]
12
13
50 μV [pA]
14
20 μV [pA]
Set the sensitivity to 10 mV [nA]
Returns the sensitivity i
i
sensitivity
15
10 μV [pA]
5 μV [pA]
16
17
2 μV [pA]
18
1 μV [pA]
19
500 nV [fA]
20
200 nV [fA]
21
100 nV [fA]
22
50 nV [fA]
23
20 nV [fA]
24
10 nV [fA]
25
5 nV [fA]
26
2 nV [fA]
27
1 nV [fA]
Chapter 4

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