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Using Source/Measure Unit as an Ammeter

Configuration Guides

Keysight Technologies

Using Source/Measure Unit as an Ammeter-

B2900A Precision Source/Measure Unit

Demo Guide 

Introduction

The Keysight B2900A Series Precision Source/Measure Unit (SMU) is a compact and cost-effective bench-top SMU with the capability to output and measure both voltage and current. The B2900A Series SMU enables you to make a wide range of current versus voltage (IV) measurements more accurately and quickly than ever before. In addition, the B2900A Series SMU comes with an intuitive graphical user interface (GUI) and free PC-based application software that make it easy for you to begin making productive measurements immediately.

This demonstration guide shows how easily you can use the Keysight B2900A Series SMU as an ammeter.

Required Instrument and Accessories

All of the accessories required to perform the demos described in this demonstration guide are provided in a demo kit that is included with Keysight B2902A/12A demo units. The kit includes items such as a banana cable, a 1.1 kΩ resistor, etc.

Setup

1. Connect the yellow banana plug of the 11059A to the Ch 1 Low Force Terminal.

2. Connect the red banana plug of the 11059A to the Ch1 High Force Terminal.

3. Clip the end of the 1.1 kΩ resistor with the black gold-plated tweezers of the 11059A.

4. Connect the black banana cable of the U8201A to the Ch2 Low Force Terminal.

5. Connect the red banana cable of the U8201A to the Ch2 High Force Terminal.

 

6. Clip the other end of the 1.1 kΩ resistor with the red alligator clip of the U8201A

7. Connect the red gold-plated tweezers of the 11059A to the black alligator clip of the U8201

Objective

This demo illustrates the current measurement function as an ammeter by sourcing 0 V voltage and measuring the current from the resistor biased by a power supply using a Source/Measure Unit.

Procedure

1. Configure the low terminal state to FLOATING

2. Measure current using the SMU (Channel 1) as an ammeter

3. Enable the DUT, the current soure circuit

4. Confirm measured current

5. (Optional) Configuring the measurement speed

6. (Optional) Configuring the measurement range operation

Demonstration

In the default setting, the low terminal of the channels in the Keysight B2900A Series SMU is grounded internally. However, the low terminal can be disconnected from the ground and kept floating. Configuring the low terminal state to FLOATING, which enables you to connect the low terminal to any potential up to ±250 V, and measuring current with sourcing 0 V from the channel, which makes it possible to use the channel as an ammeter

Conclusion

The Keysight B2900A Series Precision Source/Measure Unit (SMU) is a compact and cost-effective bench-top SMU with the capability to output and measure both voltage and current. Although it has the capability to make a wide range of current versus voltage (IV) measurements as its intrinsic function, the B2900A Series SMU can be used as an ammeter easily. 

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