Agilent Technologies 668xA manual Recovering From Calibration Problems, Calibration Error Messages

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

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Table A-2. Typical Front Panel Calibration Procedure (continued)

 

Action

Display Response

 

 

 

 

Calibrating Current Monitor (IM) (Series 668xA/669xA Only)

 

If you perform this calibration, then you must recalibrate the current output.

 

1.

Make certain the appropriate shunt resistor (see Table A-1) is the only load on the power

(Meter mode)

supply.

IMON CAL

2.

Select IMN calibration by pressing

 

If the power supply is not in CC mode, an error occurs.4

WRONG MODE

3.

Wait for DVM reading to stabilize. Then read DVM and compute the current value

(Meter mode)

 

(DVM reading ⎟ shunt resistance).

(Meter mode)

4.

Use Entry keypad to enter the current value.

Note: If the entered value is not within acceptable range, an error occurs.

CAL ERROR

 

Wait for the power supply to compute the new current calibration constants, which will be

CAL COMPLETE

 

stored in RAM.

CAL ERROR

If the constant is not within acceptable range, an error occurs.

 

 

 

4. Program the output voltage to 10% of its rated output*

 

 

*See applicable Output Ratings in “Chapter 1- General Information”

 

 

 

 

Recovering From Calibration Problems

You can encounter serious calibration problems if you cannot determine a calibration password that has been changed or the power supply is severely out of calibration. There are jumpers inside the power supply that permit the calibration password to be defeated and allow the original factory calibration constants to be restored. These jumpers are explained in the Service

Manual.

Calibration Error Messages

Error messages that can occur during calibration are shown in Table A-3.

Table A-3. GPIB Calibration Error Messages

Error

Meaning

Error

Meaning

No.

 

No.

 

1

CAL jumper prevents calibration1

6

Wrong CAL command sequence

2

CAL password is incorrect

7

Incorrect state (CV/CC) for this command

3

CAL mode is not enabled

 

 

4

Incorrect computed readback constants

1 This is a hardware disable. See the power supply

5

Incorrect computed programming

 

constants

Service Manual.

 

 

 

 

Calibration 99

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Agilent Technologies 668xA, 665xA, 664xA, 667xA, 669xA manual Recovering From Calibration Problems, Calibration Error Messages

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.