Retrieving Calibration Constants | Fluke 2635A, 2625A specs

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Service Manual

5-23. Retrieving Calibration Constants

If a calibration error is suspected, the stored constant can be retrieved and verified over the computer interface. Acceptable calibration constants for each function and range are listed in Table 5-9 (software version 5.4 and higher) or 5-10 (software versions lower than 5.4.) Retrieve the constant with the following command:

CAL_CONST? xx

(where xx denotes the calibration constant number)

Input

Table 5-10. Calibration Faults (for sotware versions lower than 5.4)

Range	Calibration Constant		Related Components
Range			Related Components
	Number	Acceptable Values

DC Volts

0.09000V

0.9000V

0.29000V

2.9000V

29.000V

290.00V

100mV

30mV0

30V

300V

1.0315 to 1.1565

1.0340 to 1.1540

1.0315 to 1.1565

1.0340 to 1.1640

1.0290 to 1.1590

AC Volts (1 kHz)

A3VR1, A3Z2

A3VR1, A3Z2 A3VR1, A3Z2, A3Z4 A3VR1, A3Z2, A3Z4

0.02900V

0.29000V

0.2900V

2.9000V

29.000V

290.00V

290.00Ω

2.9000 kΩ

29.000 kΩv

290.00kΩ

2.9000 MΩ

300mV

30V

300V

300Ω

3kΩ

30kΩ

300kΩ

3MΩ

10MΩ

-0.001 to 0.001 1.0040 to 1.1840 -0.01 to 0.01 1.0040 to 1.1840 1.0040 to 1.1840 1.0040 to 1.1840

Ohms

0.9965 to 1.0115

0.9975 to 1.0125

1.0015 to 1.0165

0.9965 to 1.0115

0.9990 to 1.0090

Frequency

A3U6, A3VR1, A3Z1, A3Z2, A3Z3 A3U6, A3VR1, A3Z1, A3Z2, A3Z3 A3U6, A3VR1, A3Z1, A3Z2, A3Z3 A3U6, A3VR1, A3Z1, A3Z2, A3Z3 A3U6, A3VR1, A3Z1, A3Z2, A3Z3 A3U6, A3VR1, A3Z1, A3Z2, A3Z3

A3Z2, A3Z4

10.000 kHz

2.9V rms

0.9995 to 1.0005

A3Y2

5-24. Replacing the EEPROM (A1U1)

The EEPROM provides nonvolatile storage for the instrument serial number, some of the instrument configuration, and all calibration information. If the EEPROM is replaced during repair, the new EEPROM can be programmed with the 7-digit serial number found on the rear panel of the instrument or any 7-digit identifier of your choosing. Note that the serial number is not programmed prior to shipment from the factory.

5-28

2635A, 2625A specifications

The Fluke 2625A is a sophisticated data logger designed for a wide range of industrial and laboratory applications. This versatile instrument excels in capturing and monitoring temperature and voltage measurements with precision and reliability. One of its standout features is its ability to record data from various sensors, making it ideal for environments where comprehensive data acquisition is critical.

Equipped with a large LCD display, the Fluke 2625A provides clear and user-friendly access to real-time measurement data. Its graphical interface allows users to visualize trends and monitor readings easily, which significantly enhances usability. The device supports a variety of input types and can connect to thermocouples, RTDs, and other sensors, offering great flexibility for various measurement tasks.

The Fluke 2625A employs advanced measurement technologies that ensure accuracy in data logging. With a high sampling rate, it captures fast-changing signals while maintaining data integrity. The device features a built-in memory that allows for extensive logging, accommodating long-term monitoring tasks without requiring constant oversight. Users can set it to log data at specified intervals, offering customizable solutions for different monitoring needs.

Another significant characteristic of the Fluke 2625A is its robust communication capabilities. The device supports USB and RS-232 interfaces for easy connectivity with computers and other devices, making data transfer and analysis seamless. This feature is especially beneficial for users who need to compile or analyze large sets of data quickly.

Furthermore, the Fluke 2625A is designed with durability in mind. Its rugged construction makes it suitable for challenging environments, including those with high levels of vibration, dust, or moisture. This reliability ensures that the device can withstand the rigors of fieldwork while still delivering accurate measurements.

In summary, the Fluke 2625A is a powerful data logger that combines versatility, accuracy, and reliability. Its user-friendly interface, advanced measurement technologies, and robust design make it an essential tool for professionals in various industries, from manufacturing and HVAC to research and development. Whether monitoring temperature changes in a laboratory or assessing voltage levels in an industrial setting, the Fluke 2625A stands out as a trusted solution for effective data logging and analysis.

Fluke 2635A, 2625A service manual Retrieving Calibration Constants, Replacing the Eeprom A1U1

Models: 2635A 2625A