The Logix® 520MD digital positioner is a highly efficient instrument that combines top-notch positioning and tuning functionalities with an easy-to-set-up mechanism and diagnostic tools that are nothing short of powerful. The Logix 520MD positioner implemented an algorithm for multi-variable gain tuning, which enables it to execute large step changes with minimal overshoot while still efficiently resolving to correspond to small step alterations.
The Auto-tune procedure is a feature of the Logix 520MD positioner that automatically cycles the actuator so it can produce a measured response and pick gain values that guarantee adequate actuator performance. The Auto-tune function features a gain modifier selector that can significantly increase or decrease the calculated gain, allowing the positioner to achieve optimal performance.
The Logix 520MD digital positioner is designed to allow for easy DIP switch configuration for tuning mode and other common settings. Although the tuning sets can be tailored with ValveSight™ software or a handheld device, catering to a broad range of actuator sizes and types.
Enhanced commissioning capabilities with easy and efficient configuration make the process more streamlined. Additionally, the apparatus offers self-calibration with auto-tune features that come equipped with adjustable gain selector for precision.
The product follows the industry-standard HART communication norms for seamless communication. It promises reduced air consumption while offering a two-stage control design for faster response times and tighter control.
Furthermore, the equipment offers standard diagnostic functionality through ValveSight™ software, which enables better control mechanisms and efficient troubleshooting.
| Technical Parameter | Value |
|---|---|
| Control Positioner Actuator | Throttling Control, On/Off |
| Intrinsically Safe | Class 1, Zone 0, AEx Ia IIC；Class I Division 1 Groups A,B,C,D |
| Digital Positioner | 4 - 20 MA (HART) |
| Type | Digital Positioner |
| Humidity | 0-100% Non-condensing |
| Max Outlet Pressure | 145 Psig |
| Data Interface | Wired |
| Communication Protocol | HART |
| Valve setpoint | 4-20mA, 450 Ohms Input Resistance |
| Product | Valve Positioner, Pneumatic Valve Positioner |
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The Control Valve Positioner product offers the following technical support and services:
- On-site technical support and troubleshooting
- Remote technical support via phone or email
- Product installation and commissioning services
- Training on product operation and maintenance
- Repair and maintenance services
- Spare parts and replacement services
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