ABB TZIDC V18345-1017121001 Electro-Pneumatic Positioner ATEX Ex ia

V18345-1017121001 ABB TZIDC Intelligent Electro-Pneumatic Positioner

The V18345-1017121001 is a digitally configurable electro-pneumatic positioner designed for high-precision control of linear and rotary actuators. This TZIDC series instrument features an integrated operator panel with a digital display, allowing for local parameterization and diagnostics. Built with a rugged IP65 aluminum housing and ATEX Ex ia IIC T6 explosion protection, the V18345-1017121001 ensures reliable operation in hazardous industrial environments while minimizing air consumption to near-zero levels during steady-state conditions.

Configuration Breakdown & Suffix Tree

• V18345 — Base Model: TZIDC Intelligent Positioner
  • -1 → Case/Mounting: Varnished aluminum, IP 65 / NEMA 4X protection.
  • 0 → Operation: Integrated indicator and operator panel for local config.
  • 1 → Communication: Two-wire 4…20 mA input with LKS adapter plug.
  • 7 → Explosion Protection: ATEX Ex II 2 G EEx ia II C T6.
  • 1 → Output / Safe Position: Single acting; Fail-Safe (venting) behavior.
  • 2 → Connections: 1/2-14 NPT cable thread; 1/4-18 NPT air pipe thread.
  • 1 → Analog/Digital Feedback: Integrated mechanical kit included.
  • 0 → Mechanical Kit Option: Proximity switches SJ2-SN (NC/Logical 1).
  • 0 → Design: Standard intelligent configurable architecture.
  • 1 → Proximity Sensors: Specialized mechanical kit for digital position feedback.

Oiltech Controls Limited’s Insight

• The V18345-1017121001 is particularly effective for chemical and oil/gas applications where “Fail-Safe” logic is mandatory for plant safety.
• Unlike traditional analog positioners, this TZIDC unit features an auto-stroke function that significantly reduces commissioning time for actuators.
• Diagnostic capabilities include continuous monitoring of air supply pressure and internal hardware health via the LKS adapter or local display.
• Its extremely low air consumption (< 0.03 kg/h) translates to significant energy savings in large-scale valve farms.
• The electrostatic dipping varnish with epoxy resin ensures the V18345-1017121001 resists corrosion in salt-heavy or humid climates.

Technical Specifications Matrix

• Brand: ABB
• Model Number: V18345-1017121001
• Input Signal: 4 … 20 mA (Two-wire technology)
• Supply Pressure: 1.4 … 6 bar (20 … 90 psi)
• Digital Input: 0…5 V DC (Logical 0) / 11…30 V DC (Logical 1)
• Accuracy: < 0.5% of full scale
• Air Consumption: < 0.03 kg/h (0.015 scfm) independent of pressure
• Housing: Aluminum, Protection Class IP 65 / NEMA 4X
• Weight: 1.7 Kg (3.75 lbs)
• Mounting: Linear (DIN/IEC 534) or Rotary (VDI/VDE 3845)

Equipment Compatibility & Deployment

• Linear Actuators: Compatible with all NAMUR standard pneumatic actuators for globe valves.
• Rotary Actuators: Fits VDI/VDE 3845 standard butterfly and ball valve assemblies.
• Hazardous Zones: Suitable for Zone 1 and Zone 2 gas environments (Intrinsically Safe).
• Control Systems: Interfaces seamlessly with DCS and PLC systems outputting 4-20mA loops.

Order Logistics & Service

• Warranty: This unit includes a full 12-month industrial warranty against manufacturing defects.
• Dispatch: We guarantee shipping within 24-48 hours for in-stock items.
• Global Express: Fast delivery provided via FedEx, UPS, and DHL.
• Technical Inquiries: Reach us at info@oiltechcontrols.com for data sheets.
• Direct Support: Message our team via WhatsApp: +86 158 8020 0923 for immediate assistance.

Professional FAQ & Selection Guide

• Question: What defines the “Fail-Safe” behavior in this specific V18345-1017121001 model?Answer: In the event of electrical power loss, the unit vents the actuator, allowing the valve to return to its spring-loaded safe position.
• Question: Can I perform calibration without an external communicator?Answer: Yes, the integrated operator panel and LCD allow for full “Autostroke” and zero/span adjustments directly at the valve.
• Question: Does the SJ2-SN mechanical kit require a separate power supply?Answer: The proximity switches typically operate via a 5…11 V DC supply conforming to DIN 19234/NAMUR standards.
• Question: What is the benefit of the LKS adapter port?Answer: It allows for PC-based configuration using FDT/DTM technology for advanced diagnostic data logging and health reports.
• Question: How do I choose between the NPT and G-thread versions?Answer: The V18345-1017121001 uses 1/4-18 NPT air threads; always verify your existing pneumatic fittings to avoid the need for external adapters.

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