Command Summary 5
Keysight 3458A Calibration Manual 91
const_id
Specifies the identifier number for the calibration constant of interest. Each 
const_id and the associated calibration constant description is listed below.
const_id Description Constant derived from
1 40 K Reference External gain adjustment
2 7 V Reference External gain adjustment
3 dcv zero front 100 mV
4 dcv zero rear 100 mV
5 dcv zero front 1 V
6 dcv zero rear 1 V
7 dcv zero front 10 V
8 dcv zero rear 10 V
9 dcv zero front 100 V
10 dcv zero rear 100 V
11 dcv zero front 1 kV
12 dcv zero rear 1 kV -External zero adjustment
13 ohm zero front 10
14 ohm zero front 100
15 ohm zero front 1 K
16 ohm zero front 10 K
17 ohm zero front 100 K
18 ohm zero front 1 M
19 ohm zero front 10 M
20 ohm zero front 100 M
21 ohm zero front 1 G