Calibration Constants - Tektronix Keithley 2281 Series Reference Manual

Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual

Calibration constants

You can use the following command to read all the calibration constants in order of their index
number:
:CALibration:PROTected:DATA?
For 2281S, the default calibration constants are listed in the following table.
Index Default
number constant
value
0.05 Ω
1
5.05 Ω
2
3 0.1
4 0.3 V
5 1.2946e
6 30 V
7 1.2946
8 0.003 V
9 8.571e
10 8.5714e
11 0.3 V
12 8.5714e
13 8.5714e
14 8.2142e
15 5.050e
16 1.428e
17 1.428e
18 0.505 V
19 1.4285
20 0
21 0
22 0
23 0
077114601 / March 2019
Default Calibration
constant steps
tolerance
0.2 Ω
Step 5
Step 7
Step 11
Step 12
10.1 Ω
Step 3
Step 4
Step 9
Step 10
0.02 Step 1
0.25 V Step 1
-2 -2
2.589e Step 1
2 V Step 2
0.12946 Step 2
0.0112 V Step 5
-3 -2
1.714e Step 5
-2 -1
1.714e Step 5
1.2 V Step 7
-1 -2
8.571e Step 7
-3 -2
1.714e Step 6
-1 -2
8.214e Step 8
-3 -2
V 1.010e V Step 3
-2 -2
2.857e Step 3
-1 -1
2.857e Step 3
1.01 V Step 4
-1
1.428e Step 4
N/A Step 9
N/A Step 9
N/A Step 9
N/A Step 10
Appendix C: Calibration and adjustment
Error code
123, Step5 10A shunt value out of range;
128, Step7 10A shunt value out of range
168, Step11 Sink 1A shunt value out of range
172, Step12 Sink 1A shunt value out of range
116, Step3 100mA shunt value out of range;
120, Step4 100mA shunt value out of range
161, Step9 Sink 100mA shunt value out of range
165, Step10 Sink 100mA shunt value out of range
110, Step1 Kmath error
111, Step1 V-DAC zero DMM reading out of range
112, Step1 V-ADC zero collected data error
113, Step2 V-DAC full scale DMM reading out of
range
114, Step2 V-ADC full scale collected data error
122, Step5 I-ADC 10A zero DMM reading out of
range
124, Step5 I-ADC 10A zero collected data error
125, Step5 I-ADC 1A zero collected data error
127, Step7 I-ADC 10A full scale DMM reading out
of range
129, Step7 I-ADC 10A full scale collected data
error
126, Step6 I-DAC zero collected data error
130, Step8 I-DAC full scale collected data error
115, Step3 I-ADC 100mA zero DMM reading out of
range
117, Step3 I-ADC 100mA zero collected data error
118, Step3 I-ADC 10mA zero collected data error
119, Step4 I-ADC 100mA full scale DMM reading
out of range
121, Step4 I-ADC 100mA full scale collected data
error
160, Step9 Sink I-ADC 100mA zero DMM reading out
of range
162, Step9 Sink I-ADC 100mA zero collected data
error
163, Step9 Sink I-ADC 10mA zero collected data
error
164, Step10 Sink I-ADC 100mA full scale DMM
reading out of range
C-31