Chapter 3. Programming Site Data

3.2Entering Transducer Parameters (cont.)

Note: The choices made early in the Transducer and Pipe options determine the prompts available later. If the PT878 does not scroll to a particular parameter, it is not necessary for that transducer or pipe type. For example, the Lining window is not available if you select a wetted transducer.

2.The next prompt asks you to enter the transducer number (printed on the transducer itself), or to specify that you are using a special application transducer.

a.From the Type prompt, press the [T] key to reach the Transducer prompt, and press [ENTER].

b.A drop-down list of transducer numbers opens as in Figure 11 on page 25. (The list varies, depending on whether you have selected wetted or clamp-on in the previous prompt. See Table 4 on page 25.) Press the [T] or [S] keys to scroll to the appropriate number, or scroll to “Special” for a special application transducer. To speed scrolling, you can press the [X] key to scroll down by a page, or the [W] key to scroll up by a page.

c.Press [ENTER] to confirm your selection.

The program now varies, depending on whether you have selected standard or special transducers.

•If you have selected a standard wetted or clamp-on transducer, the PT878 comes programmed with the needed parameters. Proceed to Confirming Entries on page 30.

•However, if you have selected a special application transducer, go to page 26.

24

Transport® Model PT878 Portable Liquid Flowmeter User’s Manual

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GE PT878 user manual Entering Transducer Parameters
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PT878 specifications

The GE PT878 is a state-of-the-art portable ultrasonic flow meter designed for the precise measurement of liquid flow in various applications. As part of General Electric’s renowned instrumentation lineup, the PT878 combines innovative technology with user-friendly features, making it an invaluable tool for engineers, technicians, and plant operators.

One of the standout characteristics of the PT878 is its non-invasive measurement capability. The meter utilizes clamp-on transducer technology, allowing it to be installed on the exterior of the pipe, eliminating the need for invasive procedures which can disrupt the system or require pipe cutting. This non-contact approach not only simplifies installation but also enhances the device’s versatility, as it can be applied to a wide range of pipe sizes and materials.

The PT878 leverages advanced digital signal processing and sophisticated algorithms to provide accurate and reliable flow measurements. It operates using the time-of-flight method, whereby ultrasonic signals are sent and received through the fluid in the pipeline to determine the flow rate. This technology allows for remarkable precision, ensuring that operational efficiency can be maintained.

Moreover, the PT878 is equipped with features such as a bright, easy-to-read display, intuitive navigation, and robustness against harsh environmental conditions. Its compact and lightweight design enhances portability, making it suitable for field applications. The meter operates on battery power, providing a long-lasting solution for remote monitoring and temporary installations.

Another impressive aspect of the PT878 is its ability to measure not only water but also a variety of liquids, from hydrocarbons to chemicals. It supports multiple measurement modes, including volumetric flow and velocity, offering a level of flexibility that caters to diverse industrial needs.

In addition to flow measurement, the PT878 offers data logging capabilities, allowing users to store and analyze flow data over time. This function is vital for understanding trends, diagnosing issues, and optimizing system performance. Users can easily transfer data to computers for comprehensive analysis, enhancing operational insights.

With its combination of innovative technology, user-friendliness, and robust measurements, the GE PT878 ultrasonic flow meter stands out as a comprehensive solution for industries requiring reliable liquid flow measurement. Whether in a manufacturing plant, a water treatment facility, or any application requiring fluid monitoring, the PT878 delivers exceptional performance and accuracy.
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