Agilent Technologies 4294A Operating Manual page 397

Table B-55 DC bias range (DC Bias Range) menu
Key operation: [Source] - BIAS MENU - MEAS RANGE [ ]
Softkey
10mA
Selects < 10 mA (less than 10 mA) as the dc bias range
|
100mA
Selects < 100 mA (less than 100 mA) as the dc bias range
return Returns to Table B-54, "DC bias (Source Bias) menu," on page 388.
1. The dc bias range is set to optimize the dc level of the current that is inputted into the HP 4294A's impedance measurement cir-
cuit. This setting affects the impedance measurement accuracy, regardless of the selection of the dc bias mode or whether appli-
cation of the dc bias is turned on or off. Usually, you can obtain the highest impedance measurement accuracy by setting the
smallest dc bias range such that the "DCBIAS OVERLOAD" (error number: 137) error does not appear. When first applying the
dc bias, set the dc bias range to 1 mA. Then, if an error occurs, increase the range as necessary to avoid this error. If you do not
apply dc bias, be sure to set the range to 1 mA.
Appendix B
Softkeys displayed by pressing the [Source] key
Function
1
.
1
.
Key Definitions
GPIB command
DCRNG M10
DCRNG M100
(N/A)
389