Metso NE Series - User Manual

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

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 B1 C6-502;B1 J8-322

13.3 Mounting Parts for Quadra-Powr

13.4 Mounting Parts for B1 C6-20;B1 J8-20

13.5 Mounting Parts for B1 C25-502;B1 J25-322

14 Type Code

Metso NE Series Specifications