Table A-1. Calibration Commands

 

Command

Header

Channel*

Data

Syntax

 

 

Range

 

(see Figure 5-2)

Calibration Mode

CMODE

 

0,1 (off,on)

C2

 

Set High Voltage

VHI

1,2,3,4

-

C3

Set Low Voltage

VLO

1,2,3,4

-

C3

Set High Current

IHI

1,2,3,4

-

C3

Set Low Current

ILO

1,2,3,4

-

C3

Calibrate Overvoltage

OVCAL

1,2,3,4

-

C3

Voltage Data

VDATA

1,2,3,4

see Table A-2

C5

Current Data

IDATA

1,2,3,4

see Table A-2

C5

*Channels 3 and 4 are not used in all models.

 

 

 

 

 

 

 

 

Table A-2. Voltage and Current Data Ranges

 

 

 

 

Voltage Range in Volts

Current Range in Amps

 

 

Vlo

 

Vhi

 

llo

 

Ihi

Output

Min

 

Max

Min

 

Max

Min

 

Max

Min

 

Max

40 W Low Voltage

0

0.1

18.5

20.5

0

0.15

 

4.5

5.3

40 W High Voltage

0.04

0.20

44

48

0

0.1

 

1.5

2.1

 

80 W Low Voltage

0

0.1

18.5

20.5

0.05

0.25

 

9

10.5

 

80 W High Voltage

0.04

0.20

44

48

0

0.1

 

3.5

4.2

 

General Calibration Procedure

This procedure causes the voltage of the specified output to go to full scale value. Take appropriate precautions.

The following general procedure applies to any computer that you are using to control your power supply. This procedure must be repeated for each output on your power supply. The calibration commands shown are the actual string commands that must be sent to the power supply. Because the power supply will attempt to calibrate itself even when incorrect or invalid readings are sent to it, it is recommended that you perform some type of error checking after steps 4, 5, and 8 to ensure that the values sent to the supply are legitimate. Use the ranges in Table A-2 as a guide. If an error is detected while in calibration mode, send CLR or turn the supply off to maintain the previous calibration constants. This will prevent incorrect constants from being stored. See Table 5-8 for a list of errors.

Before you continue with this procedure, disconnect all loads from the supply, strap the supply for local sensing, and connect the voltmeter to the + S and - S terminals as shown in the voltage calibration setup of Figure A-1.

Calibration Procedures 91

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Agilent Technologies 6627A General Calibration Procedure, Table A-1. Calibrat ion Commands Header Channel Data Syntax
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6627A, 6621A, 6624A, 6623A, 6622A specifications

Agilent Technologies is renowned for its high-quality electronic test and measurement equipment, and the Agilent 6600 series is no exception. This series includes models like the Agilent 6621A, 6622A, 6623A, 6624A, and 6627A, each designed to meet the needs of various application requirements, making them an essential part of modern laboratories.

The Agilent 6621A is a single-output DC power supply that provides a stable output voltage and current, making it ideal for testing and powering electronic devices. It features a low noise specification, which is crucial for sensitive applications. With a maximum output voltage of 30V and a current of 3A, it offers flexibility for a range of projects, from powering prototypes to performing benchmark tests.

The Agilent 6622A, a dual-output model, enhances versatility by allowing users to power two devices concurrently. It delivers output voltages of up to 20V and a total output current of 5A, which is perfect for powering circuit boards with multiple components. The built-in voltage and current limiting functions protect the equipment under test, preventing any potential damage.

On the other hand, the Agilent 6623A provides additional capabilities with its three outputs, making it particularly suitable for complex testing procedures. With a maximum voltage of 20V and output current reaching 6A across all channels, it ensures that multiple loads can be powered simultaneously without compromising performance.

The Agilent 6624A further pushes these capabilities with its higher output power. This model boasts two outputs with a combined maximum output of up to 6A, supporting devices that require more demanding power levels. Its advanced control features allow for precise voltage and current adjustments, enhancing reliability during experiments.

Lastly, the Agilent 6627A stands out as a highly scalable power supply, capable of delivering up to 40V and 7.5A across its multiple outputs. This model is particularly beneficial for applications requiring higher voltages, enabling engineers and technicians to work with a broader array of components and systems.

All models in the Agilent 6600 series incorporate built-in protection features to guarantee safety during testing. They are equipped with memory functions, allowing users to save and recall settings quickly. Additionally, the intuitive interface and various connectivity options make these power supplies user-friendly, ensuring efficient workflow in any laboratory setting. In summary, the Agilent 6600 series offers a compelling combination of versatility, precision, and advanced features, catering to diverse electronic testing applications.
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