Keithley SourceMeter 2600 Series Reference Manual page 499

Series 2600 System SourceMeters Reference Manual
Step 4. Contact check calibration
1.
2.
3.
4.
5.
6.
Short the Series 2600 sense low and output low terminals, as shown in
ure 16-4. Also short the sense high and output high terminals together, as
shown in the figure.
Allow the readings to settle, then get the Series 2600 readings:
r0_hi, r0_lo = smua.contact.r()
Connect a 50Ω resistor between the sense low and output low terminals, as
shown in Figure 16-5. Also connect a second 50Ω resistor between the
sense high and output high terminals as shown in the figure.
Allow the readings to settle, then get the Series 2600 readings:
r50_hi, r50_lo = smua.contact.r()
Send the contact check low calibration command:
smua.contact.calibratelo(r0_lo,
Z_actual,r50_lo,50_ohm_actual)
Where: r0_lo = Series 2600 0Ω low measurement
Z_actual = actual zero value
r50_lo = Series 2600 50Ω low measurement
50_ohm_actual = actual 50Ω resistor value
Typical values:
smua.contact.calibratelo(r0_lo,0,r50_lo,50.15)
(Where r0_lo and r50_lo are measurements taken in steps 2 and 4
above.)
Send the contact check high calibration command:
smua.contact.calibratehi(r0_hi,
Z_actual,r50_hi,50_ohm_actual)
Where: r0_hi = Series 2600 0Ω high measurement
Z_actual = actual zero value
r50_hi = Series 2600 50Ω high measurement
50_ohm_actual = actual 50Ω resistor value
Typical values:
smua.contact.calibratehi(r0_hi,0,r50_hi,50.15)
(Where r0_hi and r50_hi are measurements taken in steps 2 and 4
above.)
Return to Section 16 topics 2600S-901-01 Rev. A / May 2006
Calibration 16-19
Fig-