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HP 6623A, 6624A, 6621A manual TEST? Responses, Code Explanation

Models: 6624A 6621A 6623A

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HARDWARE ERR

10

 

An output error has occurred in an unknown output. Service is required.

HDW ERR CH 1

11

 

Errors 11 through 14 refer to a specific output where there is an output error.

 

 

 

 

Service is required.

HDW ERR CH 2

12

 

Same as in Error #11

HDW ERR CH 3

13

 

Same as in Error #11

HDW ERR CH 4

14

 

Same as in Error #11

NO MODEL NUM

15

 

The interface cannot find its model number. There may be a hardware failure

 

 

 

 

or the instrument may require reprogramming. Service is required.

CAL ERROR

 

16

 

You tried to use either a calibration command with CMODE off or the

 

 

 

 

calibration failed while in CMODE. Enable CMODE and check numbers sent

 

 

 

 

during calibration. Also, there could be a hardware error.

UNCALIBRATED

17

 

There is an incorrect checksum in the EEPROM possibly as a result of

 

 

 

 

incorrect calibration procedure. Recalibrate, and if the problem persists, your

 

 

 

 

supply has a hardware failure.

 

 

 

 

 

 

 

 

Table 5-8. Error Messages (continued)

Front Panel

HP-IB

 

Explanation

Response

Code

 

 

CAL LOCKED

 

18

 

Calibration was attempted with the Calibration Jumper on the HP-IB board in

 

 

 

 

the lockout position. Reposition jumper if desired. See Service Manual.

SKIP SLF TST

 

22

 

The self test jumper on the HP-IB board is in the Skip Self Test position. No

 

 

 

 

self-test was done. This is for diagnostics only. See Service Manual.

 

 

 

 

 

 

 

 

 

Table 5-9. TEST? Responses

Code

 

 

 

Explanation

0

This is the response to the TEST? query when there are no errors.

20The timer has failed self-test. Refer to the troubleshooting section in the Service Manual.

21The RAM has failed self-test. Refer to the troubleshooting section in the Service Manual.

27

The ROM has failed the checksum test. Refer to the troubleshooting section in the Service Manual.

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HP 6623A, 6624A, 6621A manual TEST? Responses, Code Explanation
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6624A, 6621A, 6623A specifications

The HP 6623A, 6621A, and 6624A are precision DC power supplies widely recognized for their reliability and performance in various laboratory and industrial applications. These models are part of HP's 662X series, designed to cater to the needs of engineers, researchers, and technicians who require accurate power sources for their testing and development activities.

The main features of the HP 6623A, 6621A, and 6624A include their high stability, low ripple, and excellent load regulation, ensuring that the output voltage and current remain stable during testing. The power supplies provide multiple output channels, allowing users to power multiple devices simultaneously. The flexibility in setting voltage and current levels makes these models ideal for a wide range of applications, including semiconductor testing, device characterization, and system integration.

One of the standout technologies in the HP 662X series is the use of smart design techniques that minimize noise and enhance output performance. These power supplies incorporate advanced feedback mechanisms to maintain steady output, even under varying load conditions. Additionally, they feature programmable outputs, which means users can adjust the output levels through a connected computer or control system, streamlining the testing process and improving efficiency.

The HP 6623A model offers three independent outputs, with total power capabilities of 40 watts. It includes a 0-20V output, which can deliver up to 2A of current, along with two additional outputs that are adjustable. The 6621A provides a single output option, delivering a maximum of 20V and 2A, making it well-suited for simple applications where a single power source is required. In contrast, the HP 6624A stands out with its four independent output channels, providing a total of 60 watts, making it the most versatile of the three models.

Characteristics of these power supplies include user-friendly interfaces, allowing for easy configuration and monitoring of settings. LED indicators provide real-time feedback on voltage and current levels, enabling users to quickly assess the performance of their tests. Moreover, built-in protection features safeguard both the power supply and the connected devices from overvoltage and overcurrent conditions.

Overall, the HP 6623A, 6621A, and 6624A power supplies embody advanced engineering and design, making them invaluable tools for professionals looking for high-quality, reliable power sources for their electronic testing needs.