ABB V18345-1020521001 TZIDC Digital Positioner | Advanced Fail-Freeze Control

Product Overview

• The ABB V18345-1020521001 is a high-performance TZIDC Electro-Pneumatic Positioner.
• It provides precise control for both linear and rotary actuators.
• This smart device uses a two-wire 4…20 mA signal with HART communication.
• Its fail-freeze function ensures the valve stays in position during power loss.
• The rugged aluminum case offers IP 65 protection for harsh industrial sites.

Product Model Structure

• V18345 (Series): TZIDC Intelligent Positioner
• 1 (Case): Aluminum, IP 65 protection
• 0 (Reserved): Standard
• 2 (Input): 4…20 mA with HART module
• 0 (Protection): Without explosion protection
• 5 (Safe Position): Double acting, Fail-Freeze
• 2 (Connections): 1/2-14 NPT (Cable) / 1/4-18 NPT (Air)
• 1 (Option Module): Analog position feedback (4…20 mA)
• 0 (Mechanical Kit): Without kit
• 1 (Design): Standard varnish

Technical Specifications

• Brand: ABB
• Model: V18345-1020521001
• Series: TZIDC
• Linearity: Characteristic deviation ≤ 0.5 %
• Resolution: High-precision A/D conversion > 4000 steps
• Response Speed: Fast 20 msec sample rate
• Sensitivity: Adjustable dead band 0.1…10 %
• Temperature Range: Stable with ≤ 0.5 % shift per 10 °C
• Vibration Resistance: Up to 10 g and 80 Hz
• Seismic Rating: Meets DIN/IEC 68-3-3 Class III
• Mounting Influence: No effect in any orientation

Installation and Compatibility

• Linear Actuators: Fits DIN/IEC 534 and NAMUR standards.
• Rotary Actuators: Fits VDI/VDE 3845 standards.
• Pneumatic Ports: Standard 1/4-18 NPT threads.
• Wiring: Easy 1/2-14 NPT cable entry.

Maintenance and Diagnostics

• Simple Tuning: Autostart feature allows easy setup via local keys.
• Smart Monitoring: HART communication enables remote health checks.
• Custom Curves: Configurable with 20 reference points.
• Position Feedback: Built-in 4…20 mA module for real-time tracking.

Shipping and Warranty

• Condition: 100% Brand New and Original.
• Warranty: 12-month quality guarantee.
• Package List: V18345-1020521001 unit and manual.
• Express Delivery: Fast shipping via FedEx, UPS, or DHL.

Typical Applications

• Oil and gas refineries.
• Chemical processing plants.
• Water and wastewater management.
• Power generation and steam systems.

FAQ

• What is Fail-Freeze? It locks the valve position if electrical power fails.
• Is feedback included? Yes, this model includes the 4…20 mA feedback module.
• Is it rugged? Yes, the IP 65 case is built for industrial environments.