METSO ND9-102HX Programmable controller

Metso (Neles) ND9-102HX Intelligent Valve Positioner Overview

The Metso (now Neles) ND9-102HX is a high-performance, intelligent valve positioner designed to control linear or rotary control valves actuated by pneumatic actuators. It achieves precise flow, pressure, temperature, or level control in industrial processes by accurately controlling the valve position.

Product Detailed Description

• Function:

• Receives control signals from the control system (typically 4-20 mA) and precisely controls the output pressure to the pneumatic actuator based on this signal.

• Achieves closed-loop control by feeding back the actual valve position via an integrated position sensor and comparing it with the setpoint.

• Features automatic calibration for simplified installation and commissioning.

• Provides various diagnostic functions to monitor the performance of the valve and actuator and predict potential failures.

• Supports multiple communication protocols such as HART, FOUNDATION Fieldbus, or PROFIBUS PA for easy integration into various control systems.

• Configurable with various control characteristics to suit different application requirements.

• Features:

• Robust and durable housing suitable for harsh industrial environments.

• Non-contact position sensor for increased reliability and durability.

• Low air consumption design to reduce operating costs.

• Multilingual user interface for convenient local operation and configuration.

• Optional explosion-proof certifications for use in hazardous areas.

Product Parameters

As the ND9 series has different configurations and options, the following are typical parameters for the ND9-102HX model. Always refer to the official datasheet for the specific model:

• Input Signal:

• 4-20 mA DC

• Output Signal:

• Pneumatic output for single-acting or double-acting actuators.

• Output pressure range varies by model.

• Supply Air Pressure:

• Varies by model, typically 1.4 to 7 bar (20 to 100 psi).

• Ambient Temperature:

• Varies by model and certification, typically -40 °C to +85 °C (-40 °F to +185 °F).

• Protection Class:

• Typically IP66 or IP67.

• Electrical Connections:

• Varies by model, typically M20 x 1.5 or 1/2" NPT.

• Communication Protocol:

• HART (Standard)

• Optional: FOUNDATION Fieldbus, PROFIBUS PA

• Position Sensor:

• Non-contact

• Linearity:

• Typically better than ±0.5% F.S. (Full Scale)

• Hysteresis:

• Typically less than 0.5% F.S.

• Repeatability:

• Typically less than 0.2% F.S.

• Certifications:

• Varies by model, may include ATEX, IECEx, FM, CSA, etc. for explosion-proof applications.

Product Advantages

• High Precision Control:

• Accurate valve position control ensures the accuracy of process control.

• High Reliability:

• Robust design and non-contact sensor ensure reliable operation in harsh environments.

• Easy Commissioning and Maintenance:

• Automatic calibration and user-friendly interface simplify installation and maintenance.

• Advanced Diagnostics:

• Provides rich diagnostic information on valve and actuator performance, facilitating predictive maintenance.

• Reduced Operating Costs:

• Low air consumption design helps reduce energy consumption.

• Flexible Communication Options:

• Supports various mainstream communication protocols for easy integration into different control systems.

Precautions

• Correct Model Selection:

• Choose the appropriate model based on valve type, actuator type, control requirements, environmental conditions, and communication protocol.

• Correct Installation:

• Follow the manufacturer's installation manual to ensure the positioner is securely mounted, air supply is correctly connected, and electrical wiring meets requirements.

• Supply Air Quality:

• Use clean, dry compressed air to avoid damage to internal components of the positioner.

• Environmental Conditions:

• Ensure the operating environment temperature is within the permissible range and avoid strong vibrations and corrosive gases.

• Regular Maintenance:

• Regular inspection of the positioner's connections, air lines, and electrical components is recommended, and maintenance or replacement should be performed as needed.

• Safe Operation:

• Always follow relevant safety regulations during installation, commissioning, or maintenance.

Product Applications

• Oil and Gas:

• Control of various process valves such as ball valves, butterfly valves, gate valves, globe valves, etc.

• Chemical:

• Precise control of valves in reactors, mixers, separators, etc.

• Power Generation:

• Control of various process valves in power plants.

• Pulp and Paper:

• Control of fluids in the pulp and paper making process.

• Water and Wastewater Treatment:

• Control of various valves in water treatment plants.

• Other Industrial Process Control:

• Suitable for various industrial fields requiring precise fluid control.

Shipping Port: Xiamen, China