Series 664xA and 665xA Supplies

Series 669xA supplies, if the Red indicator appears in the fuse window on the rear panel, then one or more of the line fuses are open. If the supply has a defective fuse, replace it only once. If it fails again, investigate the reason for the failure. Proceed as follows:

The line fuse is located on the rear panel (3, Figure 2-l). Proceed as follows:

1.Turn off the front panel power switch.

2.Using a screwdriver, remove the fuse from the fuseholder. Replace it with one of the same type (see Table 1-5 in Chapter l). Do not use a time-delaytype fuse.

3.Turn on the power supply and check the operation.

Series 667xA Supplies

Hazardous voltage can remain inside the power supply even after it has been turned off. Fuse replacement should be done only by qualified electronics personnel.

The line fuse is located inside the power supply. To change it, proceed as follows:

l. Turn off the front panel power switch and unplug the line cord from the power source.

2.Remove the power supply dustcover as follows:

a.Remove the four screws securing the carrying straps and dustcover.

b.Spread the bottom rear of the dustcover and pull it back to disengage it from the front panel.

c.Slide the dustcover back far enough to expose the line fuse (l, Figure 3-l).

3.Observe the input rail LED under the RFI shield (4, Figure C-3 in "Appendix C - Line Voltage Conversion"). If the LED is on, there is still hazardous voltage inside the supply. Wait until the LED goes out (this may take several minutes) before proceeding.

4.Connect a dc voltmeter across test points TPl and TP2 (Figure C-3). It may be necessary to remove the RFI shield in order to reach these test points. (The shield is secured by four screws on each side.) When the voltmeter indicates 60 volts or less, it is safe to work inside the power supply.

5.Replace the fuse with one of the same type (see Table 1-5 in Chapter l). Do not use a time-delaytype fuse.

6.If you removed it in step b, be sure to replace the RFI shield.

7.Replace the dustcover.

8.Connect the line cord to the power source.

9.Turn on the front panel power switch and check the operation.


Power Fuse	Line Filter	Rear of Power Supply

Figure 3-1. Series 667xA Line Fuse

56 Turn-On Checkout

668xA, 669xA, 667xA, 664xA, 665xA specifications

Agilent Technologies has long been a pioneer in the production of high-performance electronic test and measurement instruments, particularly in the field of power sources. Among its notable offerings are the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA series of power supplies. These instruments are designed to provide stable, reliable power for a variety of applications, including electronic testing, industrial processes, and research laboratories.

The Agilent 667xA series is characterized by its programmability and advanced measurement functions. These power supplies support a wide range of output voltages and currents, allowing for flexible configurations that cater to different testing needs. The built-in measurement capabilities enable users to monitor the voltage, current, and power with high precision, which is essential for ensuring optimal performance in electronic applications.

The Agilent 669xA series stands out with its high-power outputs, making it suitable for demanding applications. These power supplies deliver high voltage and current levels, making them ideal for testing high-performance devices, such as power amplifiers and motor drives. Additionally, the 669xA series includes features such as overvoltage protection and complex output sequencing to enhance the safety and reliability of the testing process.

The Agilent 665xA and 664xA series focus on delivering high accuracy and excellent regulation. These models are particularly known for their low noise operation, which is critical for sensitive applications where precision is paramount. The integrated programming capabilities allow users to automate testing sequences, thus improving efficiency in research and development settings.

The 668xA series features advanced digital signal processing that enhances the precision and stability of the output. Users benefit from features like remote sensing and monitoring, allowing feedback adjustments that maintain output accuracy despite cable losses. Furthermore, the 668xA models can integrate seamlessly with various test environments thanks to their LAN, GPIB, and USB connectivity options.

Overall, the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA power supplies provide a comprehensive range of solutions for diverse electronic testing needs. With their advanced features, superb measurement capabilities, and robust performance, these instruments empower engineers and researchers to conduct their work with confidence, precision, and efficiency.

Agilent Technologies 669xA, 668xA manual Series 664xA and 665xA Supplies, Series 667xA Supplies

Models: 668xA 669xA 667xA 664xA 665xA