2420-326B

METER, Keithley

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2420-326B KEITHLEY Keithly Meter Lens

The Keithley 2420-326B and 2420-C are interchangeable lens options for the Keithley Model 2420 SourceMeter TM Universal Meter. These lenses expand the measurement capabilities of the SourceMeter instrument, providing users with additional functionality and versatility.

The 2420-326B is a High Current Lens, designed to measure high currents up to 20A with an accuracy of 0.1%. This lens features a high current input range of 0.1 mA to 20A, with a current measurement resolution of 10 A. It also includes a current shunt with a 0.1 Ohm resistance, ensuring accurate and precise measurements for various applications. The lens is constructed with a rugged design, making it suitable for use in harsh environments.

On the other hand, the 2420-C is a Low Current Lens, optimized for measuring low currents with an accuracy of 0.01%. This lens offers a wide input range of 0.1 nA to 20A, with a current measurement resolution of 1 nA. It is particularly useful for applications that require high-precision current measurements, such as semiconductor testing, battery characterization, or calibration work. The 2420-C lens also features a low noise floor, ensuring that even the smallest current signals can be accurately measured.

Both lenses are designed to provide a high level of accuracy and versatility, making them valuable additions to the Keithley Model 2420 SourceMeter Universal Meter. They are easy to install and can be switched between measurements with just a few clicks, allowing users to quickly adapt to different measurement requirements. With their robust construction and advanced measurement capabilities, the Keithley 2420-326B and 2420-C lenses are ideal for applications in various industries, including research and development, semiconductor manufacturing, energy, and education.

The Keithley Model 2420 SourceMeter is a versatile and widely used multimeter and source measurement unit. It is available with different probe options, including the Model 2420-326B and Model 2420-C meters. Here, we will discuss the pros and cons of purchasing a Model 2420-326B and Model 2420-C probes for the Keithley 2420 SourceMeter.

Model 2420-326B Probe: Pros:

1. High measurement accuracy and resolution

2. Wide measurement range, including current up to 1A and voltage up to 100V

3. Automatic calibration with the SourceMeter

4. Built-in short-circuit protection

5. Flexible design with a detachable connector that allows for easy probe interchange

Cons:

1. Higher cost compared to other probe options

2. Not suitable for high current measurements above 1A

3. May require additional accessories for specific measurements, such as temperature probes

Model 2420-C Probe: Pros:

1. Lower cost compared to other probe options

2. Suitable for general purpose measurements, including voltage, current, resistance, and capacitance

3. Can be used with the Keithley 2410 and 2401 SourceMeters as well

Cons:

1. Lower measurement accuracy and resolution compared to the Model 2420-326B probe

2. Limited measurement range, including current up to 100mA and voltage up to 50V

3. Manual calibration required

4. No short-circuit protection

Conclusion:

Both the Model 2420-326B and Model 2420-C probes have their unique advantages and disadvantages. If you require high measurement accuracy, a wide measurement range, and automatic calibration, the Model 2420-326B probe is the better choice, despite its higher cost. On the other hand, if you have a lower budget and only require general-purpose measurements, the Model 2420-C probe is a more affordable option.

Recommendation:

Based on the given information, I would recommend the Model 2420-326B probe if you require high measurement accuracy, a wide measurement range, and automatic calibration. If your budget is limited, or if you only need to perform general-purpose measurements, the Model 2420-C probe is a more cost-effective solution.

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