Totalizing, Review Array, General, Connections

2620A, 2625A

Users Manual

Totalizing

General

Event counting (totalizing) is commonly used on production lines for counting items. The instrument counts events by detecting low-to-high voltage transitions; each low-to- high transition increments the totalizer value by one. The maximum count is 65535; "OL" (for "overload") is displayed when the count exceeds this limit.

Connections

The totalizing input is made at the input labeled \Z (sigma) on the rear panel Digital I/O Connector (see Figure 3-4). This input accepts a minimum input of 2.0V pk, which translates to 1.4V rms for a sinewave or 1V rms for a square wave. If the input is a contact-closure type, input debouncing of 300 Hz (1.67 ms) is available. A maximum rate of 5 kHz can be accommodated through the totalizing input, but only if the input debouncing is disabled. Input debounce settings are available only through the computer interface (see Chapter 4.)

ALARM OUTPUTS		DIGITAL I/O

+ – 0 1 2 3 TR		0 1 2 3 4 5 6 7 Σ
9-16 V	+30V	!
9-16 V
DC PWR

oo10f.eps

Figure 3-4. Totalizing Connection

Review Array

Readings from every scan are checked for minimum and maximum values. These values, along with the last value measured, are stored in the Review array and can be recalled by pressing N. To cycle through the three values for the displayed channel, press Hor J. If no value has been stored, or if the value has just been cleared, the display shows dashes ("-----").

These values are updated by all scans (scan intervals, continuous scans, single scans, or scans initiated with an external trigger input.) Measurements taken with the Monitor function do not update these values.

Note that either the Review array or the Totalizer count can be displayed at one time; you must deactivate one before activating the other. Press Na second time (or press C) to remove Review data from the display.

Table 3-15 illustrates how to examine the Review array contents.

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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.

Fluke 2625A, 2620A user manual Totalizing, Review Array, General, Connections

Models: 2625A 2620A