Analog Programming

These instruments can obtain their output voltage and current programming information from three distinct sources: 1) locally from the front panel, 2) remotely from an external isolated, voltage source or, 3) remotely from an external isolated, resistance. Mode switches B1, B2, .through B6, located on the rear of these products, enable the user to make these selections. The remote analog programming signals are connected to rear-panel screw-on terminals.

When the power supply is configured for remote voltage or resistance programming, the front panel VOLTAGE or CURRENT controls of the parameter being controlled are disconnected and have no effect on the output.

Note: Switches B1, B2 and B3 are for selecting the programming source for the output current. Switches B4, B5 and B6 select the programming source for the output voltage. The source of the Constant Current programming information is selected independently from the source of the Constant Voltage programming information. Both can be done at the same time.

Caution: The common terminal ( P) is internally connected to the minus (-) output terminal. If either output is

grounded, the external programmer MUST be floating. Failure to float the programmer may result in significant damage to the power supply.

For resistance programming, internal CV and CC current sources supply 1.25 mA currents through the programming resistors to create programming voltages for the power supply. A resistance of 0 to 4 K ohms will program the output voltage or current from 0 to full scale. A variable resistor can control the output over its entire range. Or, a variable resistor connected in series and/or parallel with a fixed resistor can have its control restricted to a limited portion of the output range. Alternatively, a switch can be used to select fixed values of programming resistance to obtain a set of discrete voltages or currents.

Note: The switching configuration used may require make before-break contacts to avoid producing the output voltage transients caused by momentarily opening the programming terminals.

To maintain the temperature and stability specifications of the power supply, any resistors used for programming must be stable, low-noise resistors with a temperature coefficient of less than 25ppm per °C and a power rating of at least 1/2 watt.

Both voltage and current outputs can also be controlled by a voltage source. A voltage of 0 to 5 volts programs the output voltage or current from zero to full scale. Voltage sources of more than 5 volts can be scaled down to the proper range.

The following paragraphs discuss in greater detail the methods of remotely programming the output voltage or current using either a resistance or voltage input. Whichever method is used, the wires connecting the programming device must be shielded to reduce noise pickup. The outer shield of the cable should not be used as a conductor, and should be connected to ground at one end only.

Although the following setup drawings (Figure 3-7 through 3-11) show the supply strapped for local sensing, analog programming and remote voltage sensing do not interact and may be used simultaneously.

Constant Voltage Output, Resistance Control.

The setup shown in Figure 3-7 allows the output voltage to be varied by using an external resistor to program the power supply. A programming resistor variable from 0 to 4000 ohms produces a proportional output voltage from zero to full scale. Note that fixed resistors may be connected in series and/or parallel with the variable programming resistor to set lower and/or upper output voltage limits. The resultant programming resistance is the sum of the series/parallel resistor combination, and must be between 0 and 4000 ohms. For example, a 2000 ohm resistor connected in series with the variable programming resistor will set the lower limit for output voltage at one-half full scale.

36 Operating Instructions

Page 35 Page 37
Page 36
Image 36
Agilent Technologies 6011A, 6010a, 6012B, 6023A, 6028A, 6015A Analog Programming, Constant Voltage Output, Resistance Control
Page 35 Page 37

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