Metso NE Series User Manual

7 NE 72 en • 2/2020
Positioners
Series NE
Installation, Maintenance and
Operating Instructions

Metso NE Series Specifications

General

Brand	Metso
Model	NE Series
Category	Valve Positioners
Language	English

Summary

1 Introduction

1.2 Principle of Operation

Explains the internal mechanism and torque balance.

1.4 Technical Specifications

1.6 Safety Precautions

2.5 Instrument Air Supply

3 Input Signal and Operation

4 Preliminary Actions for Adjustment

4.3 Feed-back Spring Setting

Adjusting the feedback spring based on actuator size for optimal performance.

5 Basic Adjustment

6 α₀ Adjustment

7 Split-Range Adjustment

8.3 Diaphragm Replacement

8.4 Force Coil-Nozzle Assembly Service

9 Troubleshooting

9.1 Electrical Defects

Methods for diagnosing electrical issues using measurements.

9.2 Mechanical Defects

Common mechanical problems and their potential causes.

10 Options

13 Drawings and Parts Lists

13.1 Exploded View and Parts List

13.2 Mounting Parts for B1C6-502/B1J8-322

13.3 Mounting Parts for Quadra-Powr®

13.4 Mounting Parts for B1C6-20/B1J8-20

13.5 Mounting Parts for B1C25-502/B1J25-322

14 Type Code