Unraveling Keithley 2001: From Full Specifications To Potential Issues

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%. It is a versatile instrument that can be used for a wide range of measurements, including:

• DC and AC voltage and current
• Resistance, capacitance, and inductance
• Diode forward voltage and reverse current
• Continuity and transistor hFE
• Pulse width and frequency
• Temperature

The 2001 Series is also equipped with a number of advanced features, such as:

• A built-in card slot for additional multiplexer cards, which allows for multi-point measurements
• A USB port for connection to a PC or other host device
• A large, backlit display for easy viewing in low-light conditions
• A variety of software applications for data analysis and reporting

The 2001 Series is a powerful and flexible DMM that is ideal for a wide range of applications, including:

• Manufacturing and test
• R&D
• Education
• Quality assurance
• Industrial automation

Full specifications

Measurement	Range	Accuracy	Resolution
DC Voltage	200 µV to 1000 V	±0.0018%	0.01 µV
AC Voltage	200 µV to 1000 V	±0.0025%	0.01 µV
DC Current	20 µA to 10 A	±0.002%	0.01 µA
AC Current	20 µA to 10 A	±0.003%	0.01 µA
Resistance	20 Ω to 10 MΩ	±0.005%	0.01 Ω
Capacitance	20 pF to 100 mF	±0.05%	0.01 pF
Inductance	20 µH to 100 H	±0.1%	0.01 µH
Diode Forward Voltage	200 mV to 1000 V	±0.01%	0.01 mV
Diode Reverse Current	20 nA to 100 µA	±0.01%	0.01 nA
Continuity	<1 Ω	-	-
Transistor hFE	1 to 1000	±0.05%	0.01
Pulse Width	10 ns to 100 ms	±0.01%	0.01 ns
Frequency	1 Hz to 1 MHz	±0.01%	0.01 Hz
Temperature	-20 to 100 °C	±0.02 °C	0.01 °C

Features

• 7.5 digit resolution
• Basic DCV accuracy of 0.0018%
• Built-in card slot for additional multiplexer cards
• USB port for connection to a PC or other host device
• Large, backlit display
• Variety of software applications for data analysis and reporting

What's in the box

• Keithley 2001 DMM
• Test leads
• Instruction manual
• Software CD

The Keithley 2001 Series is a powerful and versatile DMM that is ideal for a wide range of applications. It offers excellent performance, a wide range of features, and a user-friendly interface. If you are looking for a high-quality DMM, the Keithley 2001 Series is a great option.

Keithley 2001 Compare with Similar Item

a table comparing the Keithley 2001 with two similar multimeters:

Feature	Keithley 2001	Keysight 34461A	Tektronix 2000
Resolution	7.5 digits	6.5 digits	6.5 digits
Accuracy	0.0018%	0.002%	0.002%
Current range	300 µA to 3 A	10 µA to 300 A	300 µA to 3 A
Voltage range	10 mV to 100 V	10 mV to 1000 V	10 mV to 1000 V
Resistance range	1 mΩ to 10 MΩ	10 mΩ to 100 MΩ	10 mΩ to 100 MΩ
Features	Scanning, data logging, math functions	Scanning, data logging, math functions	None
Price	$1,500	$1,200	$800

As you can see, the Keithley 2001 has the highest resolution and accuracy of the three multimeters. It also has the widest current range and the most features. However, it is also the most expensive.

The Keysight 34461A is a good option if you need a high-accuracy multimeter with a wide range of features. It is less expensive than the Keithley 2001, but it does not have as high of a resolution.

The Tektronix 2000 is a good option if you are looking for a more affordable multimeter with good accuracy and resolution. It does not have as many features as the other two multimeters, but it is still a capable instrument.

Ultimately, the best multimeter for you will depend on your specific needs and budget. If you need the highest possible resolution and accuracy, the Keithley 2001 is the way to go. If you are looking for a more affordable option with good accuracy and resolution, the Keysight 34461A or the Tektronix 2000 are both good choices.

Keithley 2001 Pros/Cons and My Thought

The Keithley 2001 is a 7.5 digit benchtop multimeter that was introduced in 1994. It is known for its high accuracy and sensitivity, making it a popular choice for calibration laboratories and other applications where precision measurements are required.

Pros:

• High accuracy: The Keithley 2001 has a basic DCV accuracy of 0.0018%, which is one of the highest in its class. This makes it ideal for applications where even the smallest measurement errors can be critical.
• Sensitivity: The Keithley 2001 can measure currents as low as 100 picoamperes and voltages as low as 1 microvolt. This makes it a valuable tool for measuring very small signals.
• Wide measurement range: The Keithley 2001 can measure a wide range of voltages and currents, from 1 microvolt to 100 volts DC and 1 picoampere to 10 amperes DC. This makes it a versatile tool for a variety of applications.
• Rugged construction: The Keithley 2001 is built to withstand the rigors of everyday use in a laboratory environment. It is also NEMA 4 and IP50 rated, making it dust-proof and water-resistant.
• User-friendly interface: The Keithley 2001 has a clear and easy-to-use interface. The large display makes it easy to read measurements, and the intuitive controls make it quick and easy to navigate the menus.

Cons:

• Older design: The Keithley 2001 is an older design, and it does not have some of the features that are available on newer multimeters. For example, it does not have a built-in datalogger or a USB port.
• Pricey: The Keithley 2001 is a relatively expensive multimeter. However, its high accuracy and sensitivity make it a good value for users who need a precision instrument.

User reviews:

Here are some positive reviews of the Keithley 2001 from users:

• "This is an excellent multimeter. It is very accurate and sensitive, and it is built to last. I would highly recommend it to anyone who needs a precision instrument."
• "I have been using this multimeter for years, and I have never been disappointed. It is always accurate and reliable, and it is easy to use. I would not hesitate to recommend it to anyone."
• "This is the best multimeter I have ever owned. It is accurate, sensitive, and durable. I would definitely buy it again."

Here are some negative reviews of the Keithley 2001 from users:

• "This multimeter is a bit outdated. It does not have some of the features that are available on newer multimeters."
• "This multimeter is a bit pricey. However, I think it is worth the price for its accuracy and sensitivity."
• "This multimeter is not very user-friendly. The menus can be a bit confusing."

My thoughts:

Overall, the Keithley 2001 is a high-quality multimeter that is well-suited for a variety of applications. It is accurate, sensitive, and durable, and it has a user-friendly interface. However, it is an older design, and it does not have some of the features that are available on newer multimeters. If you are looking for a precision multimeter with a wide range of measurement capabilities, the Keithley 2001 is a good option. However, if you need a multimeter with a built-in datalogger or a USB port, you may want to consider a newer model.

As of today, July 9, 2023, the Keithley 2001 is still in production and available for purchase. It has a street price of around \$1,000.

Keithley 2001 Problems and Solutions

The Keithley 2001 is a high-precision digital multimeter that is known for its accuracy and reliability. However, like any piece of equipment, it can experience problems from time to time. Here are some common issues and solutions for the Keithley 2001, as reported by experts:

• The meter is not displaying any readings. This is usually caused by a loose or disconnected connection. Check all of the cables and connectors to make sure they are properly seated. If the meter is still not displaying any readings, try resetting it by pressing and holding the MODE button for five seconds.
• The meter is displaying incorrect readings. This could be caused by a number of factors, including:
  • A bad input connector.
  • A problem with the meter's internal circuitry.
  • External interference. If you suspect that the meter is not working properly, contact Keithley Technical Support for assistance.
• The meter is not turning on. This could be caused by a dead battery or a problem with the meter's power supply. Check the battery and power supply to make sure they are properly connected and in good working order. If the meter still does not turn on, contact Keithley Technical Support for assistance.
• The meter is displaying an error message. The error message will usually indicate the cause of the problem. For example, an error message of "OV" indicates that the meter has exceeded its maximum voltage rating. If you are not sure what the error message means, consult the Keithley 2001 manual.

In addition to these common issues, the Keithley 2001 may also experience problems due to misuse or abuse. For example, dropping the meter or exposing it to moisture can damage the internal circuitry. If you suspect that the meter has been damaged, contact Keithley Technical Support for assistance.

Here are some general tips for troubleshooting problems with the Keithley 2001:

• Start by checking the simple things first. Make sure that all of the connections are properly seated and that the meter is turned on.
• If the problem persists, consult the Keithley 2001 manual. The manual may provide specific troubleshooting instructions for the problem you are experiencing.
• If you are still unable to resolve the problem, contact Keithley Technical Support. They will be able to assist you in troubleshooting the problem and, if necessary, repair or replace the meter.