Connecting to Keithley 2634B by Keithley in Python

Instrument Card

The 2634B SourceMeter SMU instrument is a new dual-channel SMU instrument with best-in-class value and performance. Its tightly-integrated, four-quadrant design allows it to simultaneously source and measure both voltage and current to boost productivity in R&D and bench-top applications. The wide range of 1.5A DC, 10A pulse, 200V output and 1fA measurement resolution makes it suitable to test a wide range of lower current devices and materials. The Model 2634B is equipped with Keithley’s high speed TSP technology, which is over 190% faster than traditional PC-to-instrument communication techniques. The Model 2634B is designed for bench-top applications and, therefore, does not have the high-end, system-level automation features of the Model 2636B SourceMeter SMU Instrument that includes digital I/O, TSP-Link technology, and contact check function.

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 2634B 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

Here’s an example Python script that uses Qcodes to connect to a Keithley 2634B Power Supply:

import qcodes as qc
from qcodes.instrument_drivers.tektronix.Keithley_2600_channels import Keithley2600

# Create an instance of the Keithley 2634B instrument
keithley = Keithley2600('keithley', 'TCPIP::192.168.1.1::INSTR')

# Connect to the instrument
keithley.connect()

# Print the instrument ID
print(keithley.get_idn())

# Set the voltage source range to 1V
keithley.smuA.sourcerange_v(1)

# Set the current limit to 100mA
keithley.smuA.limiti(0.1)

# Enable the output
keithley.smuA.output(1)

# Set the voltage to 0.5V
keithley.smuA.volt(0.5)

# Set the current to 50mA
keithley.smuA.curr(0.05)

# Disable the output
keithley.smuA.output(0)

# Disconnect from the instrument
keithley.disconnect()

Note: Replace 'TCPIP::192.168.1.1::INSTR' with the actual IP address or VISA resource address of your Keithley 2634B Power Supply.