Figure 3-6. Remote Voltage Sensing

Because the sensing leads carry only a few milliamperes, the wires used for sensing can be much lighter than the load leads. Each sense lead should have no more than 0.2 ohms resistance. Use the resistivity columns in Table 3-2 to determine the minimum wire size for the length of sense leads being used. The sense leads should be a shielded, twisted pair to minimize the pickup of external noise. Any noise picked up on the sensing leads will appear at the supply’s output, and CV load regulation may be adversely affected. The shield should be grounded at the power supply end only, and should not be used as one of the sensing conductors. The sensing leads should be connected as close to the load as possible.

If slightly degraded CV load regulation can be tolerated, the power supply will provide remote voltage sensing with up to 2 Vdc drop in each load lead and with more than 0.2 ohms resistance in each sense lead. As the voltage drop in the load leads increases, the load voltage error due to sense-lead resistance increases according to the formula:

(2Rs + 0.5)V1

1000

where Rs is the resistance in ohms of each sense lead and Vl is the voltage drop in each load lead. For example, if the resistance in each sense lead is 1 ohm and the voltage drop in each load lead is 2 Vdc, the load voltage might differ by [2(1) + 0.5] 2/1000 = 5 mVdc from that with no sense-lead.

The sensing leads are part of the supply’s programming circuits, so they should be connected in such a way as to make it unlikely that they might inadvertently become open circuited. If the sense leads open during operation, the voltage at the load will rise slightly above its’ programmed value.

Note: The power supply includes protection resistors that reduce the effect of open sense leads during remote- sensing operation. If a sense lead opens there will be a change in the output voltage. See Table 3-4 for the approximate voltage change.

Table 3-4. Voltage change due to open sense lead

Model

6010A

6011A

6012B

6015A

6023A

6028A

+S

1.6%

4%

1.6%

1.6%

4%

4%

-S

-0.1%

1%

-0.1%

-0.1%

1%

1%

Both

1.5%

4.8%

1.5%

1.5%

4.8%

4.8%

Operating Instructions 35

Page 34 Page 36
Page 35
Image 35
Agilent Technologies 6010a, 6011A, 6012B, 6023A, 6028A, 6015A manual Voltage change due to open sense lead, Both
Page 34 Page 36

6015A, 6023A, 6028A, 6012B, 6011A, 6010a specifications

Agilent Technologies, a leader in the field of measurement and analysis, offers a suite of instruments within its 6010 and 6011 series, specifically the 6010A, 6011A, 6012B, and 6015A models. These devices are designed to meet the needs of various industries, including healthcare, environmental monitoring, and materials testing.

The Agilent 6010A is a high-performance spectrometer known for its precision and versatility. It utilizes advanced optical technologies to provide exceptional wavelength accuracy and resolution. This model is particularly useful in laboratories where reliable data is critical, offering a wide spectral range and effective noise reduction features. Its user-friendly interface simplifies complex analyses, making it suitable for both seasoned professionals and newcomers.

Following closely, the Agilent 6011A is recognized for its robust capabilities in laboratory environments. This device incorporates advanced signal processing techniques, enabling high-throughput measurements without compromising on quality. The 6011A is ideal for real-time monitoring applications, ensuring that users can make informed decisions based on accurate, timely data. Its comprehensive software suite is designed to enhance data analysis, allowing for seamless integration with existing laboratory workflows.

The 6012B variant enhances the functionality further by introducing additional features tailored for specific applications. With a focus on flexibility, the 6012B supports multiple measurement modes, including direct and differential detection. This model excels in complex measurements, allowing for greater analytical depth and insights. The built-in calibration options ensure consistent performance, making it a reliable choice for various research and development tasks.

Lastly, the Agilent 6015A model stands out with its leading-edge technology, designed for the most demanding applications. It boasts enhanced sensitivity and an improved dynamic range, making it perfect for trace analysis in challenging environmental samples. The 6015A’s advanced reporting tools provide detailed analytics, helping scientists and researchers interpret results efficiently. Its compact design also makes it suitable for laboratory spaces with limited room, without sacrificing performance.

Together, these models showcase Agilent Technologies' commitment to delivering high-quality, innovative solutions that empower users to achieve their analytical goals effectively and efficiently. Whether in a research, clinical, or industrial setting, the 6010A, 6011A, 6012B, and 6015A continue to set standards in precision instrumentation.
Top Page Image Contents