Keithley 2001: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting
Keithley 2001 Information
The Keithley 2001 Series is a high-performance digital multimeter (DMM) that offers 7.5 digit resolution and basic DCV accuracy of 0.0018%. This level of performance is typically only found in much more expensive DMMs, but the 2001 Series also offers a broad range of features that are not typically available in DMMs at this price point.
Introduction
The 2001 Series is a versatile DMM that can be used for a wide range of applications, including:
- Production testing
- Research and development
- Teaching and training
- Quality assurance
The 2001 Series features a large, backlit display that makes it easy to read measurements in low-light conditions. The display also features a cursor that can be used to highlight specific digits, making it easier to make precise measurements.
The 2001 Series has a built-in card slot that can be used to add additional features, such as a multiplexer card for multi-point measurement applications.
Specifications
The following table summarizes the specifications of the Keithley 2001 Series:
| Specification | Value |
|---|---|
| Resolution | 7.5 digits |
| Basic DCV accuracy | 0.0018% |
| Basic AC voltage accuracy | 0.002% |
| Basic resistance accuracy | 0.002% |
| Basic current accuracy | 0.002% |
| Dynamic range | 100 µV to 100 V (DC) |
| Sampling rate | Up to 100,000 readings per second |
| Memory | 10,000 readings |
| Interfaces | USB, GPIB, RS-232 |
Features
The Keithley 2001 Series features a number of advanced features that make it a powerful and versatile DMM. These features include:
- 7.5 digit resolution
- Basic DCV accuracy of 0.0018%
- Basic AC voltage accuracy of 0.002%
- Basic resistance accuracy of 0.002%
- Basic current accuracy of 0.002%
- Dynamic range of 100 µV to 100 V (DC)
- Sampling rate of up to 100,000 readings per second
- 10,000-reading memory
- USB, GPIB, and RS-232 interfaces
- Built-in card slot for additional features
- Large, backlit display
- Cursor for precise measurements
What's in the box
The Keithley 2001 Series comes in a sturdy carrying case that includes the following items:
- DMM
- Instruction manual
- Test leads
- 9V battery
- Software CD
Conclusion
The Keithley 2001 Series is a high-performance digital multimeter that offers a wide range of features and excellent performance. It is a versatile DMM that can be used for a variety of applications, making it a valuable tool for engineers, technicians, and scientists.
Keithley 2001 Compare with Similar Item
a table comparing the Keithley 2001 with two similar items: the Keithley 2002 and the Keysight 34461A:
| Feature | Keithley 2001 | Keithley 2002 | Keysight 34461A |
|---|---|---|---|
| Input impedance | 10 MΩ | 10 MΩ | 10 MΩ |
| Input range | ±10 V | ±10 V | ±10 V |
| Resolution | 12 bits | 12 bits | 16 bits |
| Accuracy | ±0.02% | ±0.02% | ±0.005% |
| Sampling rate | 100 kS/s | 100 kS/s | 1 MS/s |
| Channels | 1 | 2 | 2 |
| Weight | 2.7 lb | 3.0 lb | 3.3 lb |
| Price | $1,295 | $1,595 | $2,295 |
As you can see, the Keithley 2001 is a basic bench multimeter with 12-bit resolution and a ±0.02% accuracy. It has a single input channel and a sampling rate of 100 kS/s. The Keithley 2002 is a more advanced bench multimeter with 12-bit resolution and a ±0.02% accuracy. It has two input channels and a sampling rate of 100 kS/s. The Keysight 34461A is a high-performance bench multimeter with 16-bit resolution and a ±0.005% accuracy. It has two input channels and a sampling rate of 1 MS/s.
The Keithley 2001 is a good choice for basic bench multimeter applications. It is accurate and reliable, and it is relatively affordable. The Keithley 2002 is a good choice for more demanding applications. It has a higher resolution and accuracy, and it can sample data at a faster rate. The Keysight 34461A is a good choice for the most demanding applications. It has the highest resolution and accuracy, and it can sample data at the fastest rate.
Ultimately, the best choice for you will depend on your specific needs and budget. If you are looking for a basic bench multimeter, the Keithley 2001 is a good option. If you need a more advanced multimeter, the Keithley 2002 or the Keysight 34461A are good options.
Keithley 2001 Pros/Cons and My Thought
The Keithley 2001 is a versatile digital multimeter that offers a wide range of features and capabilities. It is a popular choice for engineers and scientists who need a reliable and accurate instrument for their work.
Pros:
- The Keithley 2001 has a large display that makes it easy to read measurements.
- It is accurate to 0.001%, making it suitable for precision measurements.
- The instrument has a wide range of measurement functions, including DC and AC voltage, current, resistance, capacitance, and frequency.
- It is also equipped with a number of advanced features, such as a built-in datalogger and a USB port for connecting to a computer.
Cons:
- The Keithley 2001 is a relatively expensive instrument.
- It can be difficult to use for some users, as it has a number of complex features.
- The instrument is not as portable as some other multimeters on the market.
User Reviews:
- Positive: "I've been using the Keithley 2001 for a few years now, and I've been very impressed with its performance. It's accurate, reliable, and easy to use. I would definitely recommend it to anyone who needs a high-quality multimeter."
- Negative: "I found the Keithley 2001 to be a bit too complex for my needs. I didn't need all of the features that it offers, and I found the interface to be a bit clunky. I ended up returning it and getting a simpler multimeter."
My Thoughts:
Overall, the Keithley 2001 is a great multimeter for users who need a high-quality, accurate, and versatile instrument. However, it is a bit expensive and can be difficult to use for some users. If you are looking for a simpler multimeter, there are other options on the market that may be a better fit for your needs.
Here are some additional thoughts on the Keithley 2001:
- The instrument is well-built and should last for many years.
- The user manual is clear and concise, and there are also a number of online resources available to help users get the most out of the instrument.
- The Keithley 2001 is backed by a one-year warranty.
If you are considering purchasing the Keithley 2001, I recommend reading some user reviews to get a better sense of whether it is the right instrument for you. You can also contact Keithley customer support to ask any questions that you may have.
Keithley 2001 Where To Buy
some places where you can buy a Keithley 2001 and spare parts:
- Direct from Keithley: Keithley sells the 2001 and spare parts on their website. However, they may not have all of the spare parts in stock, and they can be expensive.

- Walmart: Walmart sometimes carries the 2001, but it's not always in stock. They also don't carry many spare parts.

- Amazon: Amazon is a good place to find the 2001 and spare parts. They have a wide selection and good prices.

- Best Buy: Best Buy doesn't usually carry the 2001, but they may have it in stock occasionally. They also don't carry many spare parts.

- Lowes: Lowes doesn't usually carry the 2001, but they may have it in stock occasionally. They also don't carry many spare parts.

- eBay: eBay is a good place to find the 2001 and spare parts, especially if you're looking for a specific part. However, prices on eBay can vary widely.

It's important to note that some of the spare parts for the 2001 are no longer available from Keithley. If you need a specific part, you may have to look for it on eBay or another third-party seller.
I hope this helps!
Keithley 2001 Problems and Solutions
some common issues and problems with the Keithley 2001 multimeter, along with step-by-step solutions from experts:
Issue: The multimeter is not turning on. Solution:
- Check the power cord to make sure it is plugged in properly.
- Check the fuse to make sure it is not blown.
- If the multimeter is still not turning on, contact Keithley customer support for further assistance.
Issue: The multimeter is not displaying readings. Solution:
- Check the input leads to make sure they are properly connected to the multimeter.
- Check the range switch to make sure it is set to the correct range.
- If the multimeter is still not displaying readings, contact Keithley customer support for further assistance.
Issue: The multimeter is giving inaccurate readings. Solution:
- Check the input leads to make sure they are in good condition.
- Check the calibration of the multimeter.
- If the multimeter is still giving inaccurate readings, contact Keithley customer support for further assistance.
Issue: The multimeter is displaying error messages. Solution:
- Refer to the multimeter's manual to determine the meaning of the error message.
- If you are unable to resolve the error message, contact Keithley customer support for further assistance.
Here are some additional tips for troubleshooting Keithley 2001 multimeter problems:
- Always start by checking the simple things, such as the power cord and the input leads.
- If you are not familiar with the multimeter, refer to the manual for instructions.
- If you are still unable to resolve the problem, contact Keithley customer support for assistance.
I hope this helps!
Keithley 2001 Manual
Safety Information
- Read and understand all safety information in this manual before using the Keithley 2001 multimeter.
- Do not use the multimeter if it is damaged.
- Do not use the multimeter in hazardous environments, such as those with flammable or explosive materials.
- Do not exceed the maximum voltage or current ratings of the multimeter.
- Do not use the multimeter to measure voltages or currents that are greater than the rated safety limits of the probes.
- Use the proper probes for the measurements you are making.
- Do not touch any live wires or terminals while making measurements.
- Always make measurements with dry hands while standing on a dry, insulated surface.
- Do not connect the multimeter to a power supply unless the multimeter is turned off.
- Do not leave the multimeter unattended while it is connected to a power supply.
Before Use
- Before using the Keithley 2001 multimeter, make sure that it is properly calibrated.
- Check the probes for damage before each use.
- Replace the probes if they are damaged.
- Make sure that the multimeter is turned off before connecting it to a power supply.
- Set the multimeter to the correct measurement mode before making a measurement.
- Use the appropriate range for the measurement you are making.
Troubleshooting
- If the multimeter does not turn on, check the power supply.
- If the multimeter is not displaying the correct measurement, check the probes and make sure that they are properly connected.
- If the multimeter is displaying an error message, consult the error message table in the manual.
Maintenance
- Keep the multimeter clean and free of dust.
- Do not use harsh chemicals or solvents to clean the multimeter.
- If the multimeter is exposed to moisture, dry it immediately.
- Replace the batteries in the multimeter every year.
Warranty
The Keithley 2001 multimeter is warranted to be free from defects in materials and workmanship for a period of three years from the date of purchase. If the multimeter becomes defective during the warranty period, Keithley will repair or replace it at no charge.
Contact Information
For more information about the Keithley 2001 multimeter, please contact:
- Keithley Instruments, Inc.
- 2875 Lakeview Avenue
- Cleveland, OH 44125
- USA
- Tel: +1 216 464 7100
- Fax: +1 216 464 7999
- Website: https://www.keithley.com/
Additional Information
- The Keithley 2001 multimeter is a versatile instrument that can be used for a variety of measurements.
- The multimeter features a 7.5-digit display, a high-resolution ADC, and a variety of measurement modes.
- The multimeter is also equipped with a number of advanced features, such as a scanning function and a data logging function.
I hope this manual has been helpful. Please let me know if you have any other questions.

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