Main Display, Navigation Keys, Secondary Values

Instruction Manual	Clarity II T56
PN-51-T56	May 2012

The ENTER/MENU key is also used to enter selections or enable programming and calibration steps.

The EXIT key returns to the previous menu level.

The INFO key provides detailed instructions and explanations during programming and calibrating procedures. It also provides troubleshooting tips for all faults and warnings that may occur during calibration or continuous operation in process.

Navigation Keys

The four Navigation keys arranged around the ENTER/MENU key operate in an intuitive manner similar to the navigation keys on a computer keyboard. During menu operation, these keys are used to move the highlighted screen selection to another adjacent screen item. During tag entry, the left key is used to delete entries during active alpha-numeric character entry.

Alpha-numeric Keypad

The alpha-numeric keypad has 12 keys as outlined below.

•Nine keys are alpha-numeric

•One key is a dedicated “1” key

•One key is a dedicated “0” key

•One key is a dedicated “.” (decimal point) key

The alpha-numeric keypad operates the same as entries on a mobile phone. The nine alpha- numeric keys have multiple characters that can be entered for tag entries or during programming and calibration steps. Character selections are made by pressing the key multiple times to toggle to characters that are available on each key.

4.3Main Display

The T56 displays one or two primary measurement values, up to six secondary measurement values, fault and warning banner, alarm relay flags, and a digital communications icon.

Process Measurements:

Two process variables are displayed if two signal boards are installed. One process variable and process temperature is displayed if one signal board is installed with one sensor. The Upper display area shows the Sensor 1 process reading. The Center display area shows the Sensor 2 process reading. For dual conductivity, the Upper and Center display areas can be assigned to different process variables as follows:

For single input configurations, the Upper display area shows the live process variable and the Center display area can be assigned to Temperature or blank.

Secondary Values:

Up to six secondary values are shown in six display quadrants at the bottom half of the screen. All six secondary value positions can be programmed by the user to any display parameter available.

16	Display and Operation

PN-51-T56 specifications

The Emerson PN-51-T56 is a sophisticated and versatile process control valve designed to meet the demands of various industrial applications. This model is known for its robust performance, reliability, and advanced features that enhance its functionality and efficiency in process control.

One of the main features of the PN-51-T56 is its globe valve design, which allows for excellent flow regulation and precise control over fluid dynamics. The valve’s construction is designed to minimize pressure drop while ensuring high flow capacity, making it ideal for both liquid and gas applications in industries such as oil and gas, chemical processing, and water treatment.

The PN-51-T56 incorporates Emerson's latest technologies, including digital valve control systems. These systems enable seamless integration with existing control networks, allowing for real-time performance monitoring and diagnostics. With smart technologies, operators can optimize valve performance, reduce downtime, and improve overall process efficiency.

In terms of characteristics, the PN-51-T56 features a wide range of sizing options, providing versatility in various applications. It is available in different materials, allowing users to select the most appropriate material for their specific media and environmental conditions. The valve is built to withstand extreme temperatures and pressures, ensuring durability and longevity even in the most demanding situations.

Additionally, the valve's design considers maintenance ease, featuring accessible components that simplify repairs and periodic maintenance. This design philosophy minimizes operational interruptions and contributes to lower lifecycle costs.

Another key characteristic of the PN-51-T56 is its compliance with international standards and regulations, ensuring that users can rely on its safety and performance in critical applications.

In summary, the Emerson PN-51-T56 combines innovative technology with a robust design to deliver precise control in process applications. Its superior performance, durability, and ease of integration make it a preferred choice for industries requiring reliable process control solutions. With ongoing advancements in automation and digitalization, the PN-51-T56 positions itself as an essential tool for optimizing process efficiency and effectiveness in modern industrial settings.

Clarity II T56