Using the Computer Interface

4

Computer Interface Command Set

Table 4-8. Command and Query Reference (cont)

LOCK

LOCK?

LOCS

LOG?

Lock the instrument front panel so that only use of the arrow keys and the simultaneous use of Fand Bare recognized. The following LOCK commands are recognized:

Unlock

Lock and begin review. If the instrument is not in review, a review is begun (even if there are no defined channels.)

Monitor lock. If the instrument is not already in monitor, an Execution Error is generated.

The three LOCK states are non-volatile. If power is interrupted, the instrument retains the last LOCK setting.

Retrieve instrument front panel lock status.

0, 1, or 2 is returned, identifying the state set with the LOCK command.

Local without Lockout (RS-232 only)

Enter the IEEE-488.1 local without front panel lockout (LOCS) state. All front panel buttons are enabled, and the REM annunciator is not lit. This is the state assumed by the instrument at power-up reset.

If this command is used with the IEEE-488 interface, an Execution Error is generated.

Retrieve Logged Data Query (RS-232 only)

Return the oldest logged scan values for all configured channels and remove them from storage. This query is valid during scanning. The remaining count of stored scans (LOG_COUNT?) is decremented by 1. Channels defined as OFF are not included. If there are no (more) logged scans or if the instrument is a Hydra Data Acquisition Unit, an Execution Error is generated.

The response includes the following information:

Date and time at the start of the logged scan.

Date and time are returned as integer values. For example, returned values of "20,32,44,5,18,90" signify May 18, 1990 20:32:44.

Values for the channels measured.

The measurement data is returned as a list of scientific notation values, separated by commas. For example, "+3.4567E-3,-4.9876E+6" are valid measurement values. If the fast measurement rate is used, the values have one less digit of resolution ("+3.457E-3, -4.988E+6").

If you are using the RS-232 interface format 2, valid data responses would include: +894.45E+3 OHM,-9.1234E-3 C.

State of the Digital I/O lines and totalize count at the end of the scan.

Two values are returned. The first is an integer in the range 0 through 15, identifying the four alarm output states. The second is an integer in the range 0 through 255, identifying digital I/O line states.

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Fluke 2620A, 2625A user manual Lock LOCK? Locs LOG?
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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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