ABB V18345-1010521001 TZIDC Positioner Electro-Pneumatic 4-20mA

Description

Brief Introduction

The ABB V18345-1010521001 is an electro-pneumatic positioner from the TZIDC series. It controls valve position with high precision. This unit includes a built-in indicator and operator panel. The device is intelligent and fully configurable. It works well in harsh industrial environments.

Technical Specifications

• Brand: ABB
• Model Number: V18345-1010521001
• Series: TZIDC
• Product Type: Electro-Pneumatic Positioner
• Case Material: Aluminum, IP65 (NEMA 4X)
• Input Signal: 4-20 mA with LKS adapter
• Action: Double acting, fail freeze
• Electrical Connection: 1/2-14 NPT
• Air Connection: 1/4-18 NPT
• Analog Feedback: Plug-in module, 4-20 mA two-wire
• Weight: 1.7 kg
• Characteristic Deviation: ≤0.5%
• Tolerance Band: 0.3 to 10% (adjustable)
• Dead Band: 0.1 to 10% (adjustable)
• Resolution (A/D): >4000 steps
• Sample Rate: 20 msec
• Temperature Influence: ≤0.5% per 10°C change
• Vibration Influence: ≤±1% up to 10g at 80 Hz
• Seismic Standard: DIN/IEC 68-3-3 Class III
• Mounting Orientation Effect: None

Ordering Code Breakdown (Tree View)

• V18345 = TZIDC intelligent positioner with display and keypad
  • 10 = Aluminum case IP65, no mechanical indicator
  • 1 = 4-20mA input with LKS adapter
  • 0 = No protection (standard)
  • 5 = Double acting, fail freeze
  • 2 = Electrical 1/2-14 NPT, Air 1/4-18 NPT
  • 1 = Analog feedback module 4-20mA two-wire
  • 00 = No mechanical feedback
  • 1 = Standard design

Output & Signal Behavior

• Output 1 (increasing signal 0-100%): Increases output pressure OUT1
• Output 1 (decreasing signal 0-100%): Decreases output pressure OUT1
• Direct action: 4-20 mA signal = 0-100% position
• Reverse action: 20-4 mA signal = 0-100% position

Characteristic Curves

• Linear
• Equal percentage 1:25 or 1:50
• Equal percentage 25:1 or 50:1
• Freely configurable with 20 reference points

Installation Guide

• Mount the positioner on the valve assembly.
• Connect air supply to 1/4-18 NPT ports.
• Wire electrical signal to 1/2-14 NPT connection.
• Use 4-20 mA input with LKS adapter.
• No special mounting orientation needed. Any angle works.
• Ensure case is sealed properly for IP65 protection.

Calibration & Maintenance

• Use the built-in indicator and operator panel.
• Adjust dead band from 0.1% to 10%.
• Set tolerance band between 0.3% and 10%.
• Configure any characteristic curve with 20 points.
• No special tools required for daily checks.

Environmental Tolerance

• Temperature change of 10°C affects output by ≤0.5%.
• Vibration up to 10g at 80 Hz causes ≤±1% error.
• Meets strong earthquake requirements per DIN/IEC 68-3-3 Class III.
• IP65 case keeps dust and water jets out.
• Mounting orientation does not affect performance.

Compatibility

• Works with any pneumatic valve actuator.
• Accepts standard 4-20 mA control signals.
• Double acting output suits spring-return or double-acting actuators.
• Analog feedback provides 4-20 mA position signal to your DCS or PLC.

Packing List

• 1 x ABB V18345 TZIDC positioner
• 1 x LKS adapter for 4-20 mA input
• 1 x Plug-in analog feedback module (4-20 mA two-wire)
• Original factory packing

Warranty & Shipping

• 12-month warranty covers manufacturing defects.
• We ship worldwide with FedEx, UPS, or DHL.
• Tracking number provided for every order.

Typical Applications

• Valve position control in chemical plants
• Pneumatic actuator positioning for oil and gas
• Power plant steam valve regulation
• Water treatment flow control valves

Diagnostic Capabilities

• Monitor actual valve position via 4-20 mA feedback.
• Check deviation between setpoint and position.
• Adjust dead band to prevent valve hunting.
• Use indicator panel for local diagnostics.

Professional FAQ

• Q: What does fail freeze mean on this positioner?
• A: Fail freeze locks the valve in its last position if air or power fails.
• Q: Can I use this positioner with a single acting actuator?
• A: No. This is double acting version. Look for V18345 with action code 4 for single acting.
• Q: How do I set a custom characteristic curve?
• A: Use the operator panel. Enter up to 20 reference points to define any curve shape.
• Practical tip from engineers:
• Always check the air supply quality. Dirty or wet air will damage the internal parts over time.
• Selection guide for buyers:
• Choose V18345-1010521001 for double acting actuators needing fail freeze.
• Need a different action? Change the 5th digit (4 = single acting fail close, 5 = double acting fail freeze).
• For outdoor use, the IP65 aluminum case works well in rain and dust.
• Need analog feedback? This model includes it (digit 7 = 1). Pick 0 if you do not need feedback.
• Confirm your air and electrical thread types. This model uses NPT threads.

Contact Us

• For inquiries: +86 158 8020 0923 (WhatsApp)

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