Keithley 6485: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources

Keithley 6485 Information

The Keithley 6485 is a cost-effective 5½-digit picoammeter that can measure currents from 10 fA to 20 mA, at speeds up to 1000 readings per second. It is a popular choice for a variety of applications, including:

• Semiconductor testing
• Battery testing
• Medical device testing
• Research and development
• Quality assurance

The 6485 features a high input impedance of 10 TΩ, which minimizes loading effects on the circuit being measured. It also has a wide dynamic range, which allows it to measure a wide variety of currents with high accuracy.

Specifications

Feature	Specification
Input current range	10 fA to 20 mA
Input impedance	10 TΩ
Accuracy	±0.1% of reading plus 1 digit
Resolution	10 fA
Sampling rate	Up to 1000 readings per second
Display	5½-digit LCD
Dimensions	192 x 125 x 81 mm (7.5 x 5 x 3.2 in)
Weight	1.2 kg (2.6 lb)

Features

• High input impedance (10 TΩ) minimizes loading effects on the circuit being measured.
• Wide dynamic range (10 fA to 20 mA) allows it to measure a wide variety of currents with high accuracy.
• High sampling rate (up to 1000 readings per second) allows it to capture fast-changing currents.
• 5½-digit LCD display provides clear and accurate readings.
• Autoranging simplifies operation by automatically selecting the correct current range for the measurement.
• Hold function allows you to freeze a measurement for viewing or analysis.
• Datalogging function allows you to record a series of measurements for later analysis.
• USB interface allows you to connect the 6485 to a computer for data transfer and analysis.

What's in the box

• Keithley 6485 picoammeter
• Power supply
• Instruction manual
• Test leads
• Carry case

The Keithley 6485 is a versatile and reliable picoammeter that is well-suited for a variety of applications. It offers high accuracy, a wide dynamic range, and a fast sampling rate. It is also easy to use and features a variety of convenient features, such as autoranging, hold, and datalogging. If you are looking for a high-performance picoammeter, the Keithley 6485 is a great option.

Keithley 6485 Compare with Similar Item

a table comparing the Keithley 6485 picoammeter with similar items:

Feature	Keithley 6485	Keithley 6487	Keysight 34461A
Current range	10 pA to 10 nA	10 pA to 10 uA	10 pA to 100 uA
Voltage range	-250 to 250 mV	-250 to 250 mV	-250 to 250 mV
Accuracy	±0.05% of reading	±0.02% of reading	±0.01% of reading
Rise time	100 ms	50 ms	20 ms
Damping function	No	Yes	Yes
Price	$2,500	$3,500	$4,000

As you can see, the Keithley 6485 is a lower-cost option than the Keithley 6487 and Keysight 34461A. However, it also has lower accuracy and rise time. If you need the highest accuracy and fastest rise time, then the Keithley 6487 or Keysight 34461A are better choices. However, if you are on a budget, the Keithley 6485 is a good option.

Here are some additional details about the three instruments:

• The Keithley 6485 is a single-channel instrument, while the Keithley 6487 and Keysight 34461A are both multi-channel instruments. This means that the Keithley 6485 can only measure current from one channel at a time, while the Keithley 6487 and Keysight 34461A can measure current from multiple channels simultaneously.
• The Keithley 6485 does not have a damping function, while the Keithley 6487 and Keysight 34461A do. A damping function is used to reduce the effects of noise on measurements.
• The Keithley 6485 is a benchtop instrument, while the Keithley 6487 and Keysight 34461A are both portable instruments. This means that the Keithley 6485 is not designed to be moved around, while the Keithley 6487 and Keysight 34461A can be taken to different locations for testing.

Ultimately, the best picoammeter for you will depend on your specific needs and budget. If you need the highest accuracy and fastest rise time, then the Keithley 6487 or Keysight 34461A are the best options. However, if you are on a budget, the Keithley 6485 is a good choice.

Keithley 6485 Pros/Cons and My Thought

the pros and cons of the Keithley 6485 picoammeter, along with some user reviews and my own thoughts:

Pros:

• High accuracy: The 6485 has a typical accuracy of ±0.005%, which is excellent for a picoammeter in this price range.
• Wide measurement range: The 6485 can measure currents from 10 pA to 100 mA, which makes it suitable for a wide range of applications.
• Fast response time: The 6485 has a response time of 100 µs, which is fast enough to measure fast-changing currents.
• Built-in source: The 6485 has a built-in source that can be used to apply a voltage to the device under test. This can be useful for measuring leakage currents.
• USB connectivity: The 6485 can be connected to a computer via USB for remote control and data logging.

Cons:

• Price: The 6485 is relatively expensive for a picoammeter.
• Size: The 6485 is a bit bulky, which may make it inconvenient to use in some applications.
• No autoranging: The 6485 does not have autoranging, which means that you have to manually set the measurement range for each measurement.
• No 500V source: The 6485 only has a 200V source, which may not be enough for some applications.

User reviews:

Overall, the Keithley 6485 picoammeter has received positive reviews from users. Many users praise the instrument's accuracy, wide measurement range, and fast response time. Some users have also commented on the instrument's ease of use and build quality.

My thoughts:

The Keithley 6485 is a high-quality picoammeter that is well-suited for a wide range of applications. It is accurate, has a wide measurement range, and a fast response time. However, it is relatively expensive and bulky. If you are looking for a high-accuracy picoammeter with a wide measurement range, the 6485 is a good option. However, if you are on a budget or need a more compact instrument, you may want to consider other options.

Here are some additional thoughts on the Keithley 6485:

• The built-in source is a nice feature that can be useful for measuring leakage currents.
• The USB connectivity is also a nice feature that allows you to control the instrument and save data from a computer.
• The lack of autoranging can be a bit inconvenient, but it is not a major problem.
• The 200V source may not be enough for some applications, so you may want to consider the Keithley 6487 if you need a higher voltage source.

Overall, the Keithley 6485 is a good choice for a high-accuracy picoammeter with a wide measurement range. It is well-built and easy to use, but it is relatively expensive and bulky.

Keithley 6485 Where To Buy

Here are the places where you can buy Keithley 6485 and spare parts:

• Keithley Instruments You can buy directly from the manufacturer's website. They have a wide variety of spare parts available, and you can also purchase the Keithley 6485 as a kit with all the necessary accessories.
• Amazon Amazon is another good option for buying the Keithley 6485. They have a good selection of spare parts available, and you can often find the meter at a discounted price.
• Mouser Electronics Mouser is a major electronic components distributor. They have a good selection of Keithley 6485 meters and spare parts in stock.
• Newark Newark is another major electronic components distributor. They have a good selection of Keithley 6485 meters and spare parts in stock.
• Digi-Key Digi-Key is another major electronic components distributor. They have a good selection of Keithley 6485 meters and spare parts in stock.
• Ebay Ebay is a good place to find used or refurbished Keithley 6485 meters and spare parts. You can often find good deals on these items on Ebay.

I hope this helps!

Keithley 6485 Problems and Solutions

some common issues and problems with the Keithley 6485 and their solutions:

• The meter displays "0" even when a voltage or current is applied. This is usually caused by a loose or disconnected input cable. Check all of the input cables and connections to make sure they are secure.
• The meter displays incorrect readings. This can be caused by a number of factors, including:
  • A faulty input cable.
  • A loose or dirty connection.
  • A problem with the meter's internal circuitry. If you have checked all of the connections and the meter is still displaying incorrect readings, you may need to contact Keithley for further assistance.
• The meter powers on but does not display anything. This is usually caused by a problem with the meter's power supply. Check the power cord and make sure that it is properly plugged into the meter and an AC outlet. If the meter still does not power on, you may need to contact Keithley for further assistance.
• The meter's software is not working properly. This can be caused by a number of factors, including:
  • A corrupted software file.
  • A problem with the meter's operating system. If you have tried reinstalling the software and the meter is still not working properly, you may need to contact Keithley for further assistance.

Here are some additional tips for troubleshooting common Keithley 6485 problems:

• Check the meter's manual. The manual often contains troubleshooting tips for common problems.
• Search online forums and communities. There are often online forums and communities where users can share tips and troubleshooting advice for the Keithley 6485.
• Contact Keithley technical support. If you are unable to troubleshoot the problem yourself, you can contact Keithley technical support for assistance.

I hope this helps!

Keithley 6485 Manual

Safety Information

• Read and understand all safety information in this manual before using the Keithley 6485 picoammeter.
• Do not use the instrument if it is damaged or has missing or broken parts.
• Do not use the instrument in an explosive or flammable atmosphere.
• Do not connect the instrument to a voltage source that exceeds its maximum rating.
• Do not touch any exposed electrical connections.
• Always make measurements with dry hands while standing on a dry, insulated surface.
• Keep the instrument away from children and pets.

Before Use

• Before using the Keithley 6485, make sure that the instrument is properly connected to a power source and that the probes are properly connected to the instrument and the circuit under test.
• Set the instrument to the correct measurement range and resolution.
• If you are using the instrument in a noisy environment, you may need to use a noise filter.
• If you are using the instrument to measure currents in the milliamp or microamp range, you may need to use a shunt resistor.

Troubleshooting

• If the instrument is not working properly, check the following:
  • Is the instrument properly connected to a power source?
  • Are the probes properly connected to the instrument and the circuit under test?
  • Is the instrument set to the correct measurement range and resolution?
  • Is there any noise in the environment that could be affecting the measurements?
  • If you have checked all of these things and the instrument is still not working properly, contact Keithley Technical Support.

Maintenance

• The Keithley 6485 requires little maintenance. However, you should periodically clean the instrument with a soft, dry cloth.
• If the instrument becomes dirty or dusty, you can use a mild detergent solution to clean it. Be sure to rinse the instrument thoroughly with water and dry it with a soft, dry cloth.
• Do not use harsh chemicals or solvents to clean the instrument.
• Do not use compressed air to clean the instrument.

Warranty

The Keithley 6485 is warranted to be free from defects in material and workmanship for a period of one year from the date of purchase. If the instrument proves to be defective during the warranty period, Keithley will repair or replace it at no charge.

Contact Information

• Keithley Instruments, Inc.
• 28770 Aurora Rd.
• Cleveland, OH 44139
• USA
• Phone: 1-800-553-1724
• Fax: 1-440-485-3181
• Website: https://www.keithley.com

Additional Information

• For more information about the Keithley 6485, please refer to the user manual, which can be downloaded from the Keithley website.
• You can also contact Keithley Technical Support for assistance with using the instrument.

Current Time

The current time is 2023-07-02 12:28:11 PST.