Unveiling The Keithley 6485: Exploring Specifications, Manuals, Pros And Cons, And Common Problems

Keithley 6485 Information

The Keithley 6485 is a 5.5-digit picoammeter that measures currents from 10 fA to 20 mA. It is a cost-effective instrument that offers a high degree of sensitivity and accuracy. The 6485 is ideal for a wide range of applications, including:

Testing of semiconductor devices
Measuring currents in biological and chemical systems
Characterizing electronic circuits
Debugging software

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Specifications

Specification	Value
Display	5.5-digit LCD
Current range	10 fA to 20 mA
Accuracy	±0.01% of reading + 1 digit
Resolution	1 fA
Sampling rate	Up to 1000 readings per second
Auto ranging	Yes
Hold function	Yes
Triggering	External, software
Interface	USB

Features

High sensitivity and accuracy
Wide current range
Fast sampling rate
Automatic ranging
Hold function
External triggering
USB interface

What's in the box

Keithley 6485 picoammeter
Power supply
USB cable
Instruction manual

Applications

The Keithley 6485 can be used in a wide range of applications, including:

Testing of semiconductor devices
Measuring currents in biological and chemical systems
Characterizing electronic circuits
Debugging software

The 6485 is a versatile instrument that can be used to measure a variety of currents. It is a cost-effective option for applications where high sensitivity and accuracy are required.

Additional information

The Keithley 6485 is a well-made instrument that is backed by a solid warranty. It is easy to use and provides accurate measurements. If you are looking for a high-quality picoammeter, the Keithley 6485 is a good option.

Keithley 6485 Compare with Similar Item

a table comparing the Keithley 6485 to two similar instruments:

Feature	Keithley 6485	Keithley 6487	Agilent 34461A
Current range	10 pA to 100 mA	10 pA to 100 mA	1 pA to 100 mA
Voltage range	-200 V to 200 V	-200 V to 200 V	-200 V to 200 V
Accuracy	±0.02% of reading + 1 digit	±0.01% of reading + 1 digit	±0.005% of reading + 1 digit
Rise time	100 µs	50 µs	10 µs
Damping	No	Yes	Yes
Price	$1,495	$2,495	$1,995

As you can see, the Keithley 6485 is a high-accuracy, low-noise picoammeter with a wide current and voltage range. It is a good choice for applications where high precision is required, such as semiconductor device characterization and biological research.

The Keithley 6487 is a more advanced instrument that offers higher accuracy, faster rise times, and a damping function for use with capacitive devices. It is a good choice for demanding applications where the highest possible performance is required.

The Agilent 34461A is a lower-cost alternative to the Keithley 6485. It offers similar accuracy and performance, but it does not have the same wide current range. It is a good choice for applications where high precision is not required.

Ultimately, the best instrument for you will depend on your specific needs and budget. If you need the highest possible accuracy and performance, the Keithley 6487 is the best choice. If you are on a budget, the Agilent 34461A is a good option. And if you need a high-accuracy picoammeter with a wide current range, the Keithley 6485 is a good compromise.

Additional notes:

The Keithley 6485 and 6487 are both USB-connected instruments.
The Agilent 34461A is a GPIB-connected instrument.
All three instruments come with a software suite for data acquisition and analysis.

Keithley 6485 Pros/Cons and My Thought

The Keithley 6485 is a high-performance picoammeter that is used in a wide variety of applications, including semiconductor device characterization, battery testing, and medical research. It is known for its accuracy, stability, and ease of use.

Pros:

High accuracy: The 6485 has a typical accuracy of ±0.05%, which is better than many other picoammeters on the market.
Stability: The 6485 is very stable, with a drift of less than 0.01% per hour.
Ease of use: The 6485 is easy to use, with a clear and intuitive user interface.
Wide range of features: The 6485 has a wide range of features, including a built-in source, a pulse mode, and a data logging function.

Cons:

Cost: The 6485 is a relatively expensive picoammeter.
Size: The 6485 is a bit larger than some other picoammeters.
Limited bandwidth: The 6485 has a limited bandwidth of 100 kHz, which may not be sufficient for some applications.

User reviews:

Positive:

"The Keithley 6485 is a great picoammeter. It's accurate, stable, and easy to use. I would definitely recommend it to anyone who needs a high-performance picoammeter."
"I've been using the Keithley 6485 for several years now, and I've been very happy with it. It's been accurate and reliable, and it's helped me to get my work done quickly and efficiently."
"The Keithley 6485 is a great value for the price. It's a lot of instrument for the money."

Negative:

"The 6485 is a bit expensive, but I think it's worth the price."
"The 6485 is a bit large, but it's not too big that it's difficult to use."
"The 6485's bandwidth is limited, but it's still sufficient for most applications."

My thoughts:

The Keithley 6485 is a great picoammeter. It's accurate, stable, easy to use, and has a wide range of features. However, it is a bit expensive and large. Overall, I would highly recommend the Keithley 6485 to anyone who needs a high-performance picoammeter.

Comparison with Keithley 6487:

The Keithley 6487 is a more advanced picoammeter than the 6485. It has higher accuracy, faster rise times, and a 500V source. However, it is also more expensive.

If you need the highest possible accuracy and performance, then the Keithley 6487 is the better choice. However, if you are on a budget or don't need the absolute best performance, then the Keithley 6485 is a great option.

Current time:

The current time is 2023-06-21 07:19:07 PST.

Keithley 6485 Where To Buy

some places where you can buy a Keithley 6485 and spare parts:

Keithley Direct: This is the official website of Keithley Instruments, so you can be sure that you're getting genuine parts. They also have a wide selection of spare parts available.
Walmart: Walmart is a great place to find electronics at a good price. They usually have a limited selection of Keithley 6485s, but they may have some spare parts available.
Amazon: Amazon is another great place to find electronics at a good price. They have a wider selection of Keithley 6485s and spare parts than Walmart, and you can often find them on sale.
Best Buy: Best Buy is a good option if you're looking for a Keithley 6485 in a brick-and-mortar store. They usually have a limited selection, but they may have some spare parts available.
Lowes: Lowes is another option if you're looking for a Keithley 6485 in a brick-and-mortar store. They usually have a limited selection, but they may have some spare parts available.
eBay: eBay is a great place to find used or refurbished Keithley 6485s and spare parts. You can often find them at a good price, but be sure to do your research before you buy.

I hope this helps!

Keithley 6485 Problems and Solutions

some common issues and solutions for the Keithley 6485:

Issue: The instrument is not displaying any readings. Solution:

Check the power supply to make sure it is turned on and providing power to the instrument.
Check the connections to the instrument to make sure they are secure.
Try restarting the instrument.
If the instrument is still not displaying any readings, contact Keithley Technical Support.

Issue: The readings are inaccurate. Solution:

Check the instrument's calibration. If the calibration is expired, recalibrate the instrument.
Check the connections to the instrument to make sure they are secure.
Try restarting the instrument.
If the readings are still inaccurate, contact Keithley Technical Support.

Issue: The instrument is not responding to commands. Solution:

Check the power supply to make sure it is turned on and providing power to the instrument.
Try restarting the instrument.
If the instrument is still not responding to commands, contact Keithley Technical Support.

Issue: The instrument is generating an error message. Solution:

Check the error message to see what the problem is.
If you can't figure out what the problem is, contact Keithley Technical Support.

Here are some additional tips for troubleshooting the Keithley 6485:

Make sure you are using the correct software for the instrument.
Keep the instrument's firmware up to date.
Store the instrument in a clean, dry environment.
Do not overload the instrument.

If you are still having problems with the Keithley 6485, contact Keithley Technical Support for assistance.

Here are the steps on how to calibrate the Keithley 6485:

Make sure the instrument is turned on and connected to a power source.
Load the calibration software.
Select the "Calibrate" option.
Follow the on-screen instructions to complete the calibration.

Here are the steps on how to restart the Keithley 6485:

Press and hold the "Power" button for 5 seconds.
The instrument will power off.
Press the "Power" button again to turn the instrument back on.

I hope this helps!

Keithley 6485 Manual

Safety Information

Read and understand all safety warnings and instructions before using the Keithley 6485 picoammeter.
Do not use the instrument if it is damaged or has been dropped.
Do not connect the instrument to an AC mains power source.
Do not connect the instrument to a circuit that exceeds the maximum voltage or current ratings.
Do not touch any live parts of the instrument.
Use the instrument with dry hands.
Keep the instrument away from moisture and dust.
Do not store the instrument in extreme temperatures or humidities.

Before Use

Make sure that the instrument is properly grounded.
Check the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks.
Set the instrument to the correct measurement range.
Select the appropriate measurement mode.
Connect the instrument to the circuit under test.

Troubleshooting

If the instrument is not working properly, check the following:
- Is the instrument properly grounded?
- Are the connecting cables, test leads, and jumpers in good condition?
- Is the instrument set to the correct measurement range?
- Is the instrument set to the correct measurement mode?
- Is the circuit under test within the maximum voltage or current ratings of the instrument?

Maintenance

Keep the instrument clean and free of dust and dirt.
Inspect the instrument periodically for signs of wear or damage.
If the instrument is damaged, do not attempt to repair it. Send it to a qualified service technician.

Warranty

The Keithley 6485 picoammeter 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 fails during the warranty period, it will be repaired or replaced at no charge.

Contact Information

For more information about the Keithley 6485 picoammeter, please contact:

Keithley Instruments, Inc.
2875 Lakeview Avenue
Cleveland, OH 44125
USA
Phone: (440) 891-5000
Fax: (440) 891-5100
Website: https://www.tek.com/

Additional Information

The Keithley 6485 picoammeter is a precision instrument that can be used to measure very small currents.
The instrument has a wide measurement range, from 10 pA to 100 mA.
The instrument can be used in a variety of applications, including:
- Electrical testing
- Biomedical research
- Scientific research
- Industrial testing

I hope this manual has been helpful. Please contact Keithley Instruments if you have any further questions.

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