Key Benefits and Advantages
Native FOUNDATION Fieldbus Integration: The TZIDC-120 is designed to operate as a full-function fieldbus device. It supports the decentralized control philosophy by hosting function blocks (such as AO and PID) locally, allowing for faster loop response times and reduced overhead on the central host system.
Unmatched Vibration Resistance: A hallmark of the TZIDC series is its mechanical robustness, capable of withstanding vibration up to 10g at frequencies as high as 80 Hz. This makes the TZIDC-120 the premier choice for valves mounted near high-speed compressors, turbines, or on pipelines subject to intense fluid-induced turbulence.
Automated Commissioning and Calibration: To minimize installation time, the TZIDC-120 features an integrated autostroke routine. The instrument automatically detects the actuator’s travel limits and optimizes its internal PID control parameters to match the mechanical dynamics of the specific valve assembly.
Modular Options for Enhanced Safety: The positioner can be customized with optional plug-in modules. These include a shutdown module for independent fail-safe operation and various feedback modules to provide redundant position confirmation back to the control system.
Efficient Air Management: The device uses a high-capacity pneumatic relay designed for ultra-low steady-state air consumption. This efficiency reduces the operational costs associated with instrument air and helps maintain system pressure during high-demand events.
Local User Interface: For field-level management, the device includes a high-contrast LCD and local push-buttons. Technicians can perform configuration, view FF alerts, or check the device status directly at the valve without needing a specialized fieldbus configurator.
Technical Properties
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Operation: Digital-to-pneumatic valve positioner.
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Communication: FOUNDATION Fieldbus (H1).
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Vibration Immunity: 10g up to 80 Hz.
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Actuator Compatibility: Linear (sliding-stem) and Rotary (quarter-turn).
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Power Supply: Bus-powered (9 to 32 V DC).
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Housing: IP65 / NEMA 4X (Aluminum standard; Stainless Steel optional).
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Operating Temperature: -40 to 85°C.
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Safety: FM/CSA and ATEX certified for hazardous areas; SIL capable versions available.
Field of Application
The TZIDC-120 is the ideal choice for plants utilizing a digital Fieldbus architecture where reliability in harsh conditions is mandatory.
Primary Industries and Uses:
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Refining and Petrochemical: Reliable control of high-stakes process loops in vibrating environments.
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Power Generation: Accurate positioning for dampers and steam regulation valves.
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Oil and Gas: Integrated control for offshore platforms and modular processing skids.
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Chemical Manufacturing: Precise valve modulation in corrosive and hazardous areas.
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Water and Wastewater: Managing large-scale automated valve networks across digital segments.
