Keithley 2601 Reference Manual

2600S-901-01 Rev. C / January 2008 Return to Section Topics 16-15
Series 2600 System SourceMeter® Instruments Reference Manual Section 16: Calibration
k. Send the source calibration command using the range, zero and +FS multimeter read-
ings, and zero and +FS source values for the parameters:
smua.source.calibratei(range,src_Z,DMM_Z_rdg, src_FS,DMM_FS_rdg)
Where: range present calibration range
src_Z +zero 2600 source output value
DMM_Z_rdg +zero DMM measurement
src_FS +FS 2600 source output value
DMM_FS_rdg +FS DMM measurement
Typical values for the 1A range:
smua.source.calibratei(1,1e-10,1e-4,0.9,0.88)
l. If this step is not on the CALA sense mode, send the measure calibration command
using the multimeter and Series 2600 readings, and range setting for the parameters:
smua.measure.calibratei(range,Z_rdg,DMM_Z_rdg,
FS_rdg,DMM_FS_rdg)
Where: range present calibration range
Z_rdg +zero 2600 measurement
DMM_Z_rdg +zero DMM measurement
FS_rdg +FS 2600 measurement
DMM_FS_rdg +FS DMM measurement
Typical 1A range values:
smua.measure.calibratei(1,1e-5,1e-4,0.89,0.88)
m. Select negative polarity, then set the source output to the negative zero value, for exam-
ple:
smua.cal.polarity = smua.CAL_NEGATIVE
smua.source.leveli = -1e-10
n. Turn on the output:
smua.source.output = smua.OUTPUT_ON
o. Allow the readings to settle, then get both the multimeter and Series 2600 current read-
ings at the negative zero full-scale value (the Series 2600 measurement is not necessary
if this calibration step is being done on the CALA sense mode). The two measurements
should be made as close as possible in time. Use this command for the Series 2600:
Z_rdg = smua.measure.i()
p. Turn off the output:
smua.source.output = smua.OUTPUT_OFF
q. Set the source output to the negative full scale value, for example:
smua.source.leveli = -0.9
r. Turn on the output:
smua.source.output = smua.OUTPUT_ON
s. Allow the readings to settle, then get both the multimeter and Series 2600 current read-
ings at the negative full-scale output value (the Series 2600 measurement is not neces-
sary if this calibration step is being done on the CALA sense mode). The two
measurements should be made as close as possible in time. Use this command for the
Series 2600:
FS_rdg = smua.measure.v()
t. Turn off the output:
smua.source.output = smua.OUTPUT_OFF
u. Send the source calibration command using the -range, -zero and -FS multimeter read-
ings, and -zero and -FS source values for the parameters:
smua.source.calibratei(-range,src_Z,DMM_Z_rdg,
src_FS,DMM_FS_rdg)
Where: -range negative of the present calibration range

Keithley 2601 Specifications

General

Brand	Keithley
Model	2601
Category	Measuring Instruments
Language	English