Chapter 4 Features and Functions

Scanning

Adding Channels to a Scan List

Before you can initiate a scan, you must configure the channels to be scanned and set up a scan list (these two operations occur simultaneously from the front panel). The instrument automatically scans the configured channels in ascending order from slot 100 through slot 300.

To Build a Scan List From the Front Panel:

To add the active channel to the scan list, press . Select the function, range, resolution, and other measurement parameters for this

channel. You can also press to sequentially step through the scan list and take a measurement on each channel (readings are not stored in memory). This is an easy way to verify your wiring connections and channel configuration (also valid during a scan).

•When you reconfigure a channel and add it to the scan list, it is important to note that the previous configuration on that channel is lost. For example, assume that a channel is configured for

dc voltage measurements. When you reconfigure that channel for thermocouple measurements, the previous range, resolution, and channel delay are set to their Factory Reset (*RST command) state.

•To remove the active channel from the scan list, press and select CHANNEL OFF. If you decide to add that channel back to the scan list with the same function, the original channel configuration (including scaling and alarm values) is still present.

•To initiate a scan and store all readings in memory, press (the SCAN annunciator will turn on). Each time you initiate a new scan, the instrument clears all previously stored readings.

•To stop a scan, press and hold .

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Agilent Technologies 34970A manual Adding Channels to a Scan List, To Build a Scan List From the Front Panel
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34970A specifications

Agilent Technologies 34970A is a versatile data acquisition and measurement system that has gained popularity in various industries, including research and development, manufacturing, and education. The primary purpose of the 34970A is to offer an efficient solution for data collection, monitoring, and analysis, which can significantly enhance productivity and accuracy in testing applications.

One of the main features of the 34970A is its modular design, allowing users to customize the system according to their specific measurement needs. The mainframe can accommodate up to three plug-in measurement modules, which can include various types of measurements such as analog, digital, temperature, and frequency. This modularity provides flexibility for users to tailor the system to their requirements, making it highly adaptable to different applications.

Another notable characteristic of the Agilent 34970A is its impressive channel configuration. The system can support up to 120 measurement channels when fully configured, enabling extensive data acquisition without the need for multiple devices. This capability is essential for applications requiring simultaneous monitoring of multiple parameters or locations.

The 34970A utilizes advanced signal processing technologies to ensure high-accuracy measurements. The internal 6.5-digit resolution multimeter provides precise readings, while the device also supports various input types, such as thermocouples and RTDs for temperature measurements. The ability to perform mathematical functions, such as summation and averaging, on the acquired data further enhances its usability.

For data storage and management, the Agilent 34970A features built-in memory for storing up to 20,000 readings. Users can also easily transfer data to a PC through the RS-232 interface or GPIB (IEEE 488) for further analysis and reporting. Additionally, it offers the capability to program automatic data logging and scheduling of measurements, which streamlines the testing process and reduces manual intervention.

In terms of user interface, the 34970A is equipped with a large graphical display that provides clear visualization of measurement data and easy navigation through settings and options. The menu-driven interface makes it accessible for users of all skill levels, simplifying the setup and operation of the device.

Overall, the Agilent Technologies 34970A stands out for its modularity, high channel capacity, advanced measurement technologies, and user-friendly interface. As a reliable and efficient data acquisition system, it is well-suited for a wide range of applications, making it an essential tool for engineers and technicians looking to enhance measurement precision and efficiency.
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