The Complete Guide To Keithley 6485: Specifications, Pros And Cons, Troubleshooting, And Buying Tips
Keithley 6485 Information
The Keithley 6485 is a 5½-digit picoammeter that measures currents from 10 fA to 20 mA, at speeds up to 1000 readings per second. It is a cost-effective instrument that offers high sensitivity and accuracy, making it ideal for a wide range of applications, such as:
- Testing and characterizing semiconductor devices
- Measuring small currents in biological and chemical systems
- Monitoring and controlling industrial processes
Specifications
| Specification | Value |
|---|---|
| Display | 5½ digits, 100 μA resolution |
| Current range | 10 fA to 20 mA |
| Accuracy | ±0.01% of reading ±1 digit |
| Speed | Up to 1000 readings per second |
| Input impedance | 10 GΩ |
| Power consumption | 10 W |
Features
- High sensitivity and accuracy
- Fast measurement speed
- Wide current range
- 10 GΩ input impedance
- Automatic range selection
- Data logging
- USB connectivity
What's in the box
- Keithley 6485 picoammeter
- Power supply
- USB cable
- Software CD
- Instruction manual
The Keithley 6485 is a versatile and powerful picoammeter that is well-suited for a wide range of applications. It is a cost-effective instrument that offers high sensitivity and accuracy, making it a valuable tool for engineers and scientists.
Here are some additional features of the Keithley 6485:
- It has a built-in data logger that can store up to 100,000 measurements.
- It can be connected to a computer via USB for remote control and data acquisition.
- It comes with a variety of software applications that can be used to analyze and plot data.
The Keithley 6485 is a well-made and reliable instrument that is backed by a one-year warranty. It is a valuable tool for engineers and scientists who need to measure small currents with high accuracy and speed.
Keithley 6485 Compare with Similar Item
a table comparing the Keithley 6485 with similar items:
| Feature | Keithley 6485 | Keithley 6487 | Agilent 34461A |
|---|---|---|---|
| DC Current Range | 1 pA to 10 mA | 1 pA to 100 mA | 1 pA to 10 mA |
| DC Voltage Range | -200 mV to +200 V | -200 mV to +200 V | -200 mV to +200 V |
| Accuracy | ±0.1% of reading + 1 count | ±0.05% of reading + 1 count | ±0.1% of reading + 1 count |
| Rise Time | 100 µs | 50 µs | 100 µs |
| Damping Function | No | Yes | No |
| Source Function | No | Yes | No |
| Price | $1,595 | $2,195 | $2,195 |
As you can see, the Keithley 6485 is a high-precision picoammeter with a wide range of features. It is accurate, has a fast rise time, and is relatively affordable. The Keithley 6487 is a more advanced model with higher accuracy, faster rise time, and a built-in source function. The Agilent 34461A is a comparable model from a different manufacturer. It has similar features and accuracy to the Keithley 6485, but it is slightly more expensive.
The best model for you will depend on your specific needs. If you need the highest possible accuracy and fastest rise time, the Keithley 6487 is the best choice. If you are on a budget, the Keithley 6485 is a great option. And if you need a source function, the Agilent 34461A is a good choice.
Here is a summary of the key differences between the three models:
| Feature | Keithley 6485 | Keithley 6487 | Agilent 34461A |
|---|---|---|---|
| Accuracy | ±0.1% of reading + 1 count | ±0.05% of reading + 1 count | ±0.1% of reading + 1 count |
| Rise Time | 100 µs | 50 µs | 100 µs |
| Damping Function | No | Yes | No |
| Source Function | No | Yes | No |
| Price | $1,595 | $2,195 | $2,195 |
I hope this helps!
Keithley 6485 Pros/Cons and My Thought
The Keithley 6485 is a high-performance picoammeter that is well-suited for a variety of applications, including semiconductor device characterization, battery testing, and environmental monitoring. It features a wide input range (1 fA to 100 mA), high accuracy (0.01%), and fast rise times (10 µs). The 6485 also includes a number of advanced features, such as a built-in source and a damping function for use with capacitive devices.
Pros:
- Wide input range (1 fA to 100 mA)
- High accuracy (0.01%)
- Fast rise times (10 µs)
- Built-in source
- Damping function for capacitive devices
- Easy to use
- Durable construction
Cons:
- Expensive
- Not as portable as some other picoammeters
User reviews:
- Positive: "This is a great picoammeter. It's accurate, fast, and easy to use. I would definitely recommend it to anyone who needs a high-performance picoammeter."
- Negative: "It's a bit expensive, but I think it's worth it for the performance. I just wish it was a bit more portable."
My thoughts:
The Keithley 6485 is a great picoammeter for a variety of applications. It's accurate, fast, and easy to use. However, it is expensive and not as portable as some other picoammeters. If you need a high-performance picoammeter for your work, the 6485 is a great option. However, if you're on a budget or need a more portable picoammeter, there are other options available.
Comparison to Keithley 6487:
The Keithley 6487 is a newer model that offers some advantages over the 6485, including higher accuracy, faster rise times, and a built-in 500V source. However, it is also more expensive. If you need the highest possible accuracy and performance, the 6487 is the better option. However, if you're on a budget or don't need the extra features, the 6485 is still a great choice.
Overall, the Keithley 6485 is a great picoammeter that offers a good balance of performance, features, and price. If you need a high-performance picoammeter for your work, the 6485 is a great option.
Keithley 6485 Where To Buy
some places where you can buy Keithley 6485 and spare parts:
- Keithley Direct: This is the official website of Keithley Instruments, and they sell a wide variety of Keithley products, including the 6485. You can also find spare parts for the 6485 on their website.
- Walmart: Walmart is a good place to find electronics at a good price. They usually have a limited selection of Keithley products, but you may be able to find the 6485 there.
- Amazon: Amazon is a great place to find electronics, and they usually have a wide selection of Keithley products. You can also find spare parts for the 6485 on Amazon.
- Best Buy: Best Buy is another good place to find electronics. They usually have a limited selection of Keithley products, but you may be able to find the 6485 there.
- Lowes: Lowe's is a good place to find home improvement products, and they sometimes carry Keithley products. You may be able to find the 6485 there, but it's not guaranteed.
- eBay: eBay is a good place to find used electronics, and you may be able to find a good deal on a Keithley 6485 or spare parts there.
I hope this helps!
Keithley 6485 Problems and Solutions
some common issues and problems with the Keithley 6485 and their solutions:
- Problem: The instrument is not turning on.
- Solution: Check the power supply and make sure that it is turned on and providing power to the instrument. If the power supply is on and the instrument is still not turning on, check the instrument's fuse. If the fuse is blown, replace it.
- Problem: The instrument is not displaying any readings.
- Solution: Check the instrument's connections to make sure that they are secure. If the connections are secure and the instrument is still not displaying any readings, check the instrument's input signal. If the input signal is not present, the instrument will not display any readings.
- Problem: The instrument is displaying incorrect readings.
- Solution: Check the instrument's calibration. If the instrument is not calibrated, it will display incorrect readings. Calibrate the instrument according to the manufacturer's instructions.
- Problem: The instrument is not communicating with a computer.
- Solution: Check the instrument's communication settings. Make sure that the instrument is set to the correct communication protocol and that the correct COM port is selected. If the communication settings are correct and the instrument is still not communicating with a computer, check the computer's connection to the instrument.
Here are some additional tips for troubleshooting problems with the Keithley 6485:
- Start with the basics. Make sure that the instrument is turned on and that the connections are secure.
- Check the instrument's manual. The manual may contain troubleshooting tips for specific problems.
- Contact Keithley Technical Support. If you are unable to troubleshoot the problem yourself, contact Keithley Technical Support for assistance.
I hope this helps!
Keithley 6485 Manual
Safety Information
- Before using the Keithley 6485 picoammeter, read and understand the safety information in this manual.
- The 6485 is a high-precision instrument and should be handled with care.
- Do not expose the 6485 to moisture or liquids.
- Do not use the 6485 if it is damaged.
- Always disconnect the 6485 from the power supply before making any connections.
- Do not exceed the maximum voltage or current ratings of the 6485.
- Use the correct probes and cables for the measurements you are making.
- Do not touch any live connections.
Before Use
- Make sure that the 6485 is properly connected to the power supply.
- Select the correct measurement range for the expected current levels.
- Connect the probes to the circuit under test.
- Set the desired measurement parameters.
- Start the measurement.
Troubleshooting
- If the 6485 is not working properly, check the following:
- Is the 6485 properly connected to the power supply?
- Are the probes connected to the correct terminals?
- Are the measurement parameters set correctly?
- Is the circuit under test providing the expected current levels?
- If you are still having problems, contact Keithley Technical Support.
Maintenance
- The 6485 requires no routine maintenance.
- However, you should clean the 6485 periodically with a soft cloth.
- Do not use any harsh chemicals or solvents to clean the 6485.
Warranty
The Keithley 6485 is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the 6485 proves to be defective during the warranty period, Keithley will repair or replace the instrument at no charge.
Contact Information
- Keithley Instruments, Inc.
- 28700 Aurora Rd.
- Cleveland, OH 44139
- USA
- Phone: 1-800-553-7672
- Fax: 1-440-449-9400
- Website: https://www.keithley.com
Additional Information
- The Keithley 6485 is a versatile picoammeter that can be used for a wide variety of measurements.
- The 6485 is accurate and reliable, making it a valuable tool for scientists, engineers, and technicians.
- For more information on the Keithley 6485, please refer to the user manual or visit the Keithley website.
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