Agilent Technologies 4294A Instruction Manual Page 397

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Appendix B 389
Key Definitions
Softkeys displayed by pressing the [Source] key
B. Key Definitions
10mA
|
Selects < 10 mA (less than 10 mA) as the dc bias range
1
.
DCRNG M10
100mA
Selects < 100 mA (less than 100 mA) as the dc bias range
1
.
DCRNG M100
return Returns to Table B-54, “DC bias (Source Bias) menu,” on page 388. (N/A)
1. The dc bias range is set to optimize the dc level of the current that is inputted into the HP 4294As 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.
Table B-55 DC bias range (DC Bias Range) menu
Key operation: [Source] - BIAS MENU - MEAS RANGE [ ]
Softkey Function GPIB command
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