Product Highlights
The PA440 Indicator is a versatile device that offers a wide functional range. It features a free scalable display, allowing users to adjust the display to their specific requirements. The indicator supports switch mode, hysteresis, and parameterisable deceleration of the contacts, providing flexibility in contact operations. One of its notable features is that it does not require an external power supply.
Designed as a field display for pressure transmitters, it is compatible with output signals of 4-20 mA / 2-wire or 0-10 V / 3-wire. The indicator boasts a clear 4-digit LCD display and comes in a durable plastic housing. It also includes a pressure compensation element with a PTFE filter. Optional versions of the PA440 Indicator include the IS-version, a variant with 2 contacts, and a version with a 4-digit LED display for enhanced visibility and functionality.
Key Features
- Free scalable display for clear and customisable readings.
- Switch mode, hysteresis, and parameterisable deceleration of the contacts for precise control.
- No external power supply is required, ensuring hassle-free operation.
Product Characteristics
- Field display compatible with pressure transmitters with output signals: 4 … 20 mA / 2-wire or 0 … 10 V / 3-wire.
- 4-digit LCD display for easy visibility and readability.
- Durable plastic housing for long-lasting reliability.
Optional Versions
- IS-version for intrinsically safe environments.
- 2 contacts for expanded functionality.
- 4-digit LED display for alternative display preferences.
Applications
The in situ display at tank batteries is one of the primary applications for the PA 440 Field Display. In environments where multiple tanks are used to store liquids such as oil, chemicals, or water, it is crucial to have real-time, local readouts of process variables like level, pressure, or temperature. The PA 440 can be mounted directly at the tank site, providing operators with immediate and accurate information without the need to access a central control room. This enhances operational efficiency and safety, as any abnormal readings can be quickly identified and addressed.
Another important use is the in situ display at pumping stations. Pumping stations, which are often located in remote or hard-to-access areas, require reliable monitoring of flow rates, pressures, or other process parameters. By installing the PA 440 Field Display at these locations, maintenance personnel and operators can easily check system status and performance on-site. This reduces downtime and allows for faster troubleshooting, as the display provides clear and direct feedback from the process loop.
Beyond these specific examples, the PA 440 Field Display is suitable for many more industrial applications where local indication of process values is needed. Whether it’s in water treatment plants, chemical processing facilities, or manufacturing lines, the display’s robust design and compatibility with standard 4-20 mA current loops make it a versatile solution. Its ability to operate in harsh environments and provide contact outputs for alarms or control further extends its usefulness across a wide range of field instrumentation scenarios.
