V18345-1020121001 ABB Electro-Pneumatic Positioner

ABB V18345-1020121001 Electro-Pneumatic Positioner for Precise Valve Control

Key Technical Specifications

• Brand: ABB
• Model: V18345-1020121001
• Product Type: Electro-Pneumatic Positioner
• Input Signal: Two-wire technology, nominal range 4...20 mA
• Split Range: Configurable between 20% and 100% of nominal range
• Maximum Input: 25 mA / 30 V
• Minimum Input: 3.4 mA without analog position feedback, 3.5 mA with analog position feedback
• Start Point: 3.8 mA
• Load Voltage at 20 mA: 8.7 V DC without explosion protection, 9.7 V DC for intrinsically safe device
• Impedance at 20 mA: 435 ohms without explosion protection, 485 ohms for intrinsically safe device
• Digital Input: Control voltage 24 V DC (12...30 V DC), logical "0" at 0...10 V DC, logical "1" at 12...30 V DC, max current 4 mA
• Digital Output: Control circuit to DIN 19234/NAMUR, supply voltage 5...11 V DC, current < 1.0 mA for logical "0", current > 2.0 mA for logical "1"
• Output Range: 0...6 bar (0...90 psi)
• Air Capacity at 1.4 bar: 5.0 kg/h = 3.9 Nm3/h = 2.3 scfm
• Air Capacity at 6 bar: 13 kg/h = 10 Nm3/h = 6.0 scfm
• Output Function: Single or double acting actuators, air vented or blocked on electrical power failure
• Shut-off Values: End position 0% = 0...45%, end position 100% = 55...100%
• Angle of Rotation: 25...120° for rotary actuators, optional 270°; 25...60° for linear actuators
• Travel Limit: Freely configurable within 0...100% of total travel, minimum range > 20%
• Travel Time Prolongation: 0...200 seconds, separately for each direction
• Positioning Time Limit: 0...200 seconds monitoring parameter
• Supply Pressure: 1.4...6 bar (20...90 psi)
• Air Consumption: < 0.03 kg/h / 0.015 scfm, independent of supply pressure
• Characteristic Curve: Linear, equal percentage 1:25 or 1:50 or 25:1 or 50:1, freely configurable with 20 reference points
• Characteristic Deviation: ≤ 0.5%
• Tolerance Band: 0.3...10%, adjustable
• Dead Band: 0.1...10%, adjustable
• Resolution: > 4000 steps (A/D conversion)
• Sample Rate: 20 msec
• Ambient Temperature Influence: ≤ 0.5% for every 10 °C change
• Vibration Influence: ≤ ± 1% up to 10 g and 80 Hz
• Seismic Requirements: Meets DIN/IEC 68-3-3 Class III for strong and strongest earthquakes
• Mounting Orientation Influence: No effect
• Operating Temperature Range: -40...+85 °C
• Communication: HART Protocol 5.1, local connector for LKS adapter, HART communication via 20 mA signal line with optional FSK modem
• Housing: Aluminium, varnished, IP 65 (NEMA 4X)
• Mounting: Linear actuators per DIN/IEC 534 / NAMUR, rotary actuators per VDI/VDE 3845, integral mounting ready
• Connections: Cable thread 1/2-14 NPT, air pipe thread 1/4-18 NPT
• Option Module: Plug-in analog position feedback, signal range 4...20 mA
• Mechanical Kit: Without digital position feedback
• Design: Standard varnish and coding
• Weight: 1.7 Kg
• Approvals: ATEX, FM, CSA, IECEx, suitable for SIL2 safety loops
• Directives: EMC Directive 89/336/EEC, CE conformity marking

Performance and Environmental Resistance

• The positioner delivers high resolution above 4000 steps for accurate valve positioning.
• It maintains a characteristic deviation of ≤ 0.5% across the operating range.
• The device tolerates vibration up to 10 g and 80 Hz with minimal influence.
• It meets DIN/IEC 68-3-3 Class III seismic requirements for strong earthquakes.
• The wide -40...+85 °C operating temperature range supports harsh climates.
• Mounting orientation causes no effect on performance.
• The IP 65 aluminium housing resists dust, water, and corrosion.

Installation Guide

• Mount the positioner to linear actuators according to DIN/IEC 534 / NAMUR standards.
• Mount the positioner to rotary actuators according to VDI/VDE 3845 standards.
• Use the integral mounting option when the actuator design allows direct attachment.
• Connect the cable using 1/2-14 NPT thread and the air pipe using 1/4-18 NPT thread.
• Supply instrument air free of oil, water, and dust per DIN/ISO 8573-1 Class 3.
• Keep supply pressure between 1.4...6 bar (20...90 psi) and never exceed the actuator maximum.
• Verify the air dew point stays at least 10 K below the operating temperature.
• Configure the input signal, split range, and characteristic curve through the local interface or HART.
• Use the single push-button operating philosophy for quick commissioning.

Package List

• 1 x ABB V18345-1020121001 Electro-Pneumatic Positioner
• 1 x Analog position feedback plug-in module, 4...20 mA
• 1 x Mounting kit for linear or rotary actuator
• 1 x Cable connector, 1/2-14 NPT
• 1 x Air pipe connector, 1/4-18 NPT
• 1 x Product documentation

Shipping and Support

• We ship worldwide through FedEx, UPS, and DHL.
• We keep this model in stock and dispatch orders within 5 days.
• We accept returns within 30 days of delivery.
• We supply brand new original units only.

FAQ

• Q: What is the input signal range of the V18345-1020121001?
  A: It uses a two-wire 4...20 mA nominal range with split range configuration from 20% to 100%.
• Q: Does this positioner support HART communication?
  A: Yes, it includes an FSK module for HART communication and supports HART Protocol 5.1.
• Q: What is the operating temperature range?
  A: The positioner works from -40...+85 °C.
• Q: What air supply pressure does it require?
  A: It needs 1.4...6 bar (20...90 psi) and must not exceed the actuator maximum pressure.
• Q: What is the resolution of the A/D conversion?
  A: The resolution exceeds 4000 steps with a 20 msec sample rate.
• Q: Is this unit suitable for SIL2 safety loops?
  A: Yes, it meets SIL2 requirements and holds ATEX, FM, CSA, and IECEx approvals.
• Q: What is the air consumption?
  A: Air consumption stays below 0.03 kg/h or 0.015 scfm, independent of supply pressure.
• Q: What is the weight of the positioner?
  A: The unit weighs 1.7 Kg.
• Q: What is the characteristic deviation?
  A: The characteristic deviation is ≤ 0.5%.
• Q: How do you ship this product?
  A: We ship by FedEx, UPS, and DHL, and we dispatch within 5 days.

Contact Information

• Inquiries: sales@nex-auto.com
• Phone / WhatsApp: +86 153 9242 9628
• Partner NexAuto Technology Limited: https://www.nex-auto.com/