2640A/2645A NetDAQ

Users Manual

Table 2-5. Ethernet Indicators

Indicator

Instrument (10Base2 Ethernet)

Description

XMT (red)

RCV (red)

LK (amber)

Instrument (10BaseT Ethernet)

Transmit Blinks when the instrument is transmitting data on the network.

Receive Blinks when there is any network activity. Steady off means there is no network activity.

Collision Remains off under normal conditions. The LED blinks when collisions are detected. Steady blinking usually indicates an improperly configured network (no 50-Ohm termination, wrong type of coaxial cable, etc.).

XMT (red)

Transmit Normal indication blinks when the instrument is transmitting data on the network.

RCV (red)

Receive Normal indication blinks when there is any network activity. Steady off means there is no network activity.

LK (amber)

 

Link Remains on when the instrument connects to a hub or

 

 

host computer. If off, check the hub connection.

Ethernet Parallel-to LAN Adapter

 

Red

 

Power Lit when power is applied to the adapter. If not lit,

 

 

check the power connections. This indicator must be on.

Green

Activity Blinks when there is network activity, transmitting and receiving. No blinking when the network is active indicates no connection to the network. Cycle the computer power to activate automatic port selection.

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Fluke 2645A, 2640A user manual Ethernet Indicators Instrument 10Base2 Ethernet Description, Instrument 10BaseT Ethernet

2645A, 2640A specifications

The Fluke 2640A and 2645A are advanced bench multimeters that represent a significant leap in measurement technology, designed primarily for electrical engineers and technicians who require precision and reliability in their readings. These multimeters are built to cater to complex applications in manufacturing, research, and development.

One of the standout features of the Fluke 2640A and 2645A is their high accuracy. With specifications that can reach up to 0.0035% DC Voltage accuracy, users can trust that their measurements will be consistent and precise. This is especially critical in fields like automated test equipment (ATE) where exact measurements can be crucial for product quality and safety.

Both models incorporate a large, easy-to-read display, making it convenient for users to view measurement results clearly from a distance. They also feature a wide measurement range, capable of handling a variety of tasks, from basic voltage and current measurements to more complex tasks such as resistance and temperature measurements with appropriate sensors.

The multimeters also stand out with their advanced data logging capabilities. The Fluke 2645A, for instance, can store up to 10,000 readings, allowing for extensive data collection and analysis without the need for constant monitoring. This is beneficial for long-term studies or processes that require continual oversight.

Connectivity is another key characteristic. Both the 2640A and 2645A support USB and RS-232 interfaces, which enable easy integration with computers and other devices for seamless data transfer. This feature is important for engineers who rely on software for data analysis and visualization.

Another notable technology included in these models is the Fluke Connect app compatibility, which allows users to remotely monitor measurements from their smartphones or tablets. This capability provides added flexibility, enabling technicians to work hands-free while still keeping an eye on process measurements.

Additionally, the Fluke 2645A comes with a graphical display option, allowing users to visualize measurement trends over time. This graphical representation can be invaluable for diagnosing issues or observing patterns in data.

In conclusion, the Fluke 2640A and 2645A multimeters offer exceptional performance with their high accuracy, extensive data logging, connectivity options, and advanced visualization capabilities. These features make them indispensable tools for professionals in a variety of fields, ensuring that they can achieve reliable results in their measurement endeavors.