Overview 2

Operating Modes

Input Channels

The instrument provides one input (channel 0) on the front panel and 20 inputs (channels 1 .. 20) through a connector on the rear panel. Channels 0, 1, and 11 can measure a maximum of 300V; all other channels can measure a maximum of 150V.

Caution

The maximum input that can be applied between any terminal of channels 2..10 and 12..20 is 150V dc or ac rms. The maximum input that can be applied between any terminal of channels 0, 1, and 11 and ground is 300V dc or ac rms. The maximum common mode input that can be applied is 300V dc or ac rms.

Operating Modes

The instrument provides three modes of operation:

∙Active Mode

The instrument is in Active Mode whenever the Monitor and/or Scan functions are enabled. Scans are activated by the interval timer, an external trigger, an alarm trigger, or a single scan (SINGLE KQ) command. When in Active Mode, the MON and/or SCAN annunciators are lighted.

∙Configuration Mode

The instrument is in Configuration Mode whenever settings (channel function, alarm values, Mx+B scaling values, scan interval, trigger type, etc.) are being examined or changed. When in the Configuration Mode, the SET annunciator is on, along with other annunciators indicating the parameter(s) being set.

∙Inactive Mode

The instrument is in Inactive Mode when no measurement functions are enabled and no instrument settings are being examined or changed. This is a quiescent state; only summary channel information is displayed.

Turning the Instrument On

Turn the instrument on by pressing POWER on the lower right of the front panel. Initially, the entire display lights while the instrument conducts several internal self tests.

Note

You can familiarize yourself with the instrument by holding the display fully lit. Press and hold K, then press RON and wait a moment for the instrument to beep. Then release K. The entire display will now stay on until you press any button; the power-up sequence then resumes.

A deviation in mainframe software Version 5.5 will not allow the display to remain ON. Versions 5.4 and below will allow the display to remain ON.

Any error conditions are momentarily displayed during this test sequence. Even in the presence of an error, the instrument still attempts to complete the self-test sequence and begin normal operation. However, if you encounter an error, note the number and refer to Self Test Diagnostics and Error Codes in Chapter 6 for additional information.

Once the self tests are completed, the instrument enters Inactive or Active Mode, depending on the following circumstances:

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Fluke 2620A, 2625A user manual Operating Modes, Turning the Instrument On, Input Channels
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2625A, 2620A 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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