Tektronix KEITHLEY SourceMeter 2606B Reference Manual page 812

Model 2606B System SourceMeter® Instrument Reference Manual
24. Select the DMM dc volts function.
25. Repeat the above steps for the 3 A range. Compute the current reading from the DMM voltage
reading and characterized 0.5 Ω resistance value: I = V/R.
26. Select automatic polarity mode:
smua.cal.polarity = smua.CAL_AUTO
Contact check calibration adjustment
1. As illustrated in the following figure:
▪
Short the 2606B SENSE LO and LO terminals together.
▪
Short the SENSE HI and HI terminals together.
2. Allow the readings to settle, then get the 2606B readings:
r0_hi, r0_lo = smua.contact.r()
3. Characterize both 50 Ω resistors using the resistance function of the digital multimeter.
4. As illustrated in the following figure:
▪ Characterize both 50 Ω resistors using the resistance function of the digital multimeter.
▪ Connect a 50 Ω resistor between the SENSE LO and LO terminals.
▪ Connect the second 50 Ω resistor between the SENSE HI and HI terminals.
2606B-901-01 Rev. C November 2021
Figure 155: Connections for contact check 0 ohm calibration
Section 17: Calibration
17-27