Connecting to Keithley 6430 by Keithley in Python

Instrument Card

he 6½-digit Model 6430 Sub-Femtoamp Remote SourceMeter SMU Instrument can measure current with 1aA sensitivity. Its low noise and drift performance make it ideal for research on single electron devices, highly resistive nanowires and nanotubes, polymers, and electrochemical applications.

Device Specification: here

Manufacturer card: KEITHLEY

Keithley Instruments is a measurement and instrument company headquartered in Solon, Ohio, that develops, manufactures, markets, and sells data acquisition products, as well as complete systems for high-volume production and assembly testing.

• Headquarters: Cleveland, Ohio, United States
• Yearly Revenue (millions, USD): 110.6
• Vendor Website: here

Demo: Measure a solar panel IV curve with a Keithley 2400

Connect to the Keithley 6430 in Python

Read our guide for turning Python scripts into Flojoy nodes.

Flojoy

PROTOCOLS > SCPI

📄 IDN

Query a device's identity through the universal *IDN? SCPI command.

📄 MEASURE VOLTAGE

Query an instrument's measured output voltage, such as a DMM or power supply.

📄 SCPI WRITE

Write a SCPI command to a connected bench-top instrument and return the result.

QCodes Community

To connect to a Keithley 6430 Multimeter using Qcodes Community, you can use the following Python script:

from qcodes.instrument.visa import VisaInstrument

# Create a class for the Keithley 6430 Multimeter
class Keithley6430(VisaInstrument):
    def __init__(self, name, address, **kwargs):
        super().__init__(name, address, terminator="\n", **kwargs)

        # Add parameters for the instrument
        self.add_parameter('source_current_compliance',
                           unit='A',
                           get_parser=float,
                           set_cmd='SENS:CURR:PROT {}',
                           get_cmd='SENS:CURR:PROT?',
                           vals=Numbers(1e-9, 105e-3)
                           )
        # Add more parameters here...

        self.connect_message()

# Connect to the Keithley 6430 Multimeter
keithley = Keithley6430('keithley', 'TCPIP0::192.168.1.1::INSTR')

# Set the source current compliance
keithley.source_current_compliance(0.1)

# Get the source current compliance
compliance = keithley.source_current_compliance()
print(f"Source current compliance: {compliance} A")

# Close the connection
keithley.close()

Note: Replace 'TCPIP0::192.168.1.1::INSTR' with the actual address of your Keithley 6430 Multimeter.