Keithley 6487 Reference Manual

F-4 Remote Calibration Model 6487 Reference Manual
Table F-2
Current calibration commands by range
Range Commands*
2nA :SENS:CURR:RANG 2e-9
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-9
:CAL:PROT:SENS –2e-9
20nA :SENS:CURR:RANG 2e-8
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-8
:CAL:PROT:SENS –2e-8
200nA :SENS:CURR:RANG 2e-7
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-7
:CAL:PROT:SENS –2e-7
2μA :SENS:CURR:RANG 2e-6
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-6
:CAL:PROT:SENS –2e-6
20μA :SENS:CURR:RANG 2e-5
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-5
:CAL:PROT:SENS –2e-5
200μA :SENS:CURR:RANG 2e-4
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-4
:CAL:PROT:SENS –2e-4
2mA :SENS:CURR:RANG 2e-3
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-3
:CAL:PROT:SENS –2e-3
20mA :SENS:CURR:RANG 2e-2
:CAL:PROT:SENS 0
:CAL:PROT:SENS 2e-2
:CAL:PROT:SENS –2e-2
* Full-scale calibration values for 2nA to 2μA ranges should be calcu-
lated from calibrator voltages and standard resistance values. (See
Section 16.) Values for 20μA to 20mA ranges can be used as shown.

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%