HYDRA

Service Manual

3-24. Install the Main PCA

1.Fit the Main PCA (H) so that the chassis guides pass through notches on both sides of the pca. Then slide the pca back until it is snug against the Rear Panel.

2.Replace the RS-232 connector screws (T) on the rear of the chassis. Use a 3/16-inch nut driver to tighten the connector hardware.

3.Fasten the Main PCA to the chassis with two 6-32, 1/4-inch panhead screws (U).

4.Connect the transformer cable at connector J3 on the Main PCA. Verify that the connector is aligned correctly (all three pins connected.)

5.Plug the Front Panel cable onto its connector (J2) on the Main PCA.

6.From the Rear Panel, push the ALARM OUTPUTS and DIGITAL I/O terminal strips onto their appropriate connectors.

3-25. Install the IEEE-488 Option (2620A Only)

Both the instruction sheet provided with the IEEE-488 Option and Section 7 of this manual fully describe installation. The following instructions provide installation procedure essentials. If necessary, refer to Section 7, paying particular attention to Figures 7-2 and 7-3.

1.Place the IEEE-488 PCA (N) into position so that the edge of the pca fits into the chassis guide. Then line up connecting pins with the matching connector on the Main PCA, and slide the pca into position.

2.Install the single 6-32, 1/4-inch panhead Phillips screw in the corner of the IEEE-488 PCA.

3.If necessary, attach the rear panel connector using a 7-mm nut driver.

4.At the pca, attach the ribbon cable leading from the rear panel connector.

3-26. Install the Memory PCA (2625A Only)

Note

The Memory PCA and the IEEE-488 PCA occupy the same position and use the same connection to the Main PCA. The Memory PCA is a standard part of the Hydra Data Logger (Model 2625A). The IEEE-488 PCA is not available with the 2625A but is optional with the Hydra Data Acquisition Unit (Model 2620A).

1.Place the Memory PCA into position so that the edge of the pca fits in the chassis guide. Then line up connecting pins with the matching connector on the Main PCA, and slide the pca into position.

2.Install the single 6-32, 1/4-inch panhead Phillips screw in the corner of the Memory PCA.

3-14

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Fluke 2635A service manual Install the Main PCA, Install the IEEE-488 Option 2620A Only, Install the Memory PCA 2625A Only
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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.
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