Table of Contents
Advertisement
CP [n]
Input coupling control
The value of n sets the input coupling mode according to the following table:
n
Coupling mode
0
AC
1
DC
SEN[.] [n] Full-scale sensitivity control
The value of n sets the full-scale sensitivity according to the following table,
depending on the setting of the IMODE control:
n
IMODE=0
4
20 nV
5
50 nV
6
100 nV
7
200 nV
8
500 nV
9
1 µV
10
2 µV
11
5 µV
12
10 µV
13
20 µV
14
50 µV
15
100 µV
16
200 µV
17
500 µV
18
1 mV
19
2 mV
20
5 mV
21
10 mV
22
20 mV
23
50 mV
24
100 mV
25
200 mV
26
500 mV
27
1 V
Floating point mode can only be used for reading the sensitivity, which is reported in
volts or amps. For example, if IMODE = 0 and the sensitivity is 1 mV the command
SEN would report 18 and the command SEN. would report +1.0E-03. If IMODE was
changed to 1, SEN would still report 18 but SEN. would report +1.0E-09.
AS
Perform an Auto-Sensitivity operation
The instrument adjusts its full-scale sensitivity so that the magnitude output lies
between 30 % and 90 % of full-scale.
Chapter 6, COMPUTER OPERATION
full-scale sensitivity
IMODE=1
20 fA
50 fA
100 fA
200 fA
500 fA
1 pA
2 pA
5 pA
10 pA
20 pA
50 pA
100 pA
200 pA
500 pA
1 nA
2 nA
5 nA
10 nA
20 nA
50 nA
100 nA
200 nA
500 nA
1 µA
IMODE=2
n/a
n/a
n/a
n/a
n/a
n/a
20 fA
50 fA
100 fA
200 fA
500 fA
1 pA
2 pA
5 pA
10 pA
20 pA
50 pA
100 pA
200 pA
500 pA
1 nA
2 nA
5 nA
10 nA
6-11
Advertisement
Table of Contents
