V18345-1021420001 Electro-Pneumatic Positioner ABB | TZIDC Series

Description

Product Overview

• ABB part number V18345-1021420001 is a TZIDC smart positioner.
• It comes with a clear indicator and an easy-to-use operator panel.
• This model supports double acting, fail safe output.
• It includes HART communication via FSK module.
• The unit has ATEX II 2 G Ex ib IIC T6/T4 Gb explosion protection.

Technical Data (Simple & Clear)

• Brand: ABB
• Model: V18345 Electro-Pneumatic Positioner
• Input Signal: 4 to 20 mA, two-wire
• Min. Starting Current: 3.8 mA
• Max Current: 25 mA
• Load Voltage at 20 mA: 9.7 V
• Impedance at 20 mA: 485 Ω
• Digital Input Logic: 0…5 V DC = state “0”, 11…30 V DC = state “1” (max 4 mA)
• Air Output Range: 0 to 6 bar (0 to 90 psi)
• Air Capacity at 6 bar: 13 kg/h (10 Nm³/h, 6.0 scfm)
• Rotation Angle (Rotary): 25 to 120° (optional 270°)
• Rotation Angle (Linear): 25 to 60°
• Dead Band Time Limit: 0 to 200 seconds
• Supply Pressure: 1.4 to 6 bar (20 to 90 psi)

Model Suffix Breakdown (Table Style)

Installation & Compatibility

• Mount on linear actuators per DIN/IEC 534 / NAMUR.
• Mount on rotary actuators per VDI/VDE 3845.
• Use 1/2-14 NPT for cable and 1/4-18 NPT for air pipe.
• Avoid strain on screw terminals during wiring.
• Works with Versamax control systems.
• Set travel limits from 0 to 100% (minimum range >20%).
• Adjust travel time prolongation from 0 to 200 seconds per direction.

Diagnostic Features & Applications

• Diagnostics: Monitor dead band time limit up to 200 seconds.
• Check shut-off values: end position 0% = 0…45%, end position 100% = 55…100%.
• Use digital output (NAMUR) to see logical “0” or “1” states.
• Typical Use: Double acting actuators in chemical plants.
• Ideal for explosive areas with ATEX certification.
• Use in oil refineries for safe valve control.
• Suitable for power plants with HART network integration.

Maintenance & Environmental Tolerance

• Easy Maintenance: Open cover to reach screw terminals quickly.
• Change analog feedback module without special tools.
• Environment: Works from -40°C to +85°C.
• Handles 95% humidity with condensation allowed.
• Aluminum case meets IP65 (NEMA 4X).
• Air consumption stays low regardless of supply pressure changes.

Certifications & Compliance

• ATEX II 2 G Ex ib IIC T6/T4 Gb (gas explosion protection).
• Complies with DIN/IEC 534, NAMUR, VDI/VDE 3845.
• Digital output meets DIN 19234/NAMUR.
• HART communication FSK module included.

Package Contents

• 1 x ABB TZIDC positioner V18345-1021420001
• 1 x LKS adapter plug
• 1 x FSK module for HART
• 1 x Analog position feedback module (4-20 mA)
• 1 x Cable gland (1/2-14 NPT)
• Quick start manual

Warranty & Shipping

• 12-month factory warranty from delivery date.
• Covers all manufacturing defects and material issues.
• Shipping partners: FedEx, UPS, DHL.
• Fast global delivery with tracking.
• All products are new and in original factory packing.

Professional FAQ (5 Questions)

• How do I set the split range for this positioner? Configure between 20% and 100% of the nominal 4-20 mA range.
• What happens to air output during power failure? The double acting actuator vents air or stays blocked – safe position.
• Can I extend the travel time? Yes, set travel time prolongation from 0 to 200 seconds separately for each direction.
• Experience: What is a common wiring mistake? People ignore the 4 mA max current for digital input. Use a proper power supply below 30 V DC.
• Buying guide: Do I need the ATEX version (suffix 1)? Yes if your site has gas hazards (zone 1 or 2). No if you work in a safe area – choose suffix 0 to save cost.

Contact our team on WhatsApp: +86 158 8020 0923

Copyright © 2026 PLCDCS HUB Limited. All rights reserved.
Original Source: https://plcdcshub.com/
Partner: Powergear X Automation Limited | Oiltech Controls Limited