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metso automation neles NP Series

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POSITIONERS
Series NP
Installation, Maintenance and
Operating Instructions
7 NP 72 en
Issue 5/02
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metso automation neles NP Series Specifications

General IconGeneral
Brandmetso automation
Modelneles NP Series
CategoryValve Positioners
LanguageEnglish

Summary

1 INTRODUCTION

1.1 General

General description of the NP700 positioner's application.

1.2 Operating principle

Explains the force balance principle of the positioner's operation.

1.3 Marking of positioner

Details the information found on the positioner's ID plate.

1.4 Technical specifications

Lists key technical specifications like signal pressure ranges and supply pressure.

2 MOUNTING ON THE METSO AUTOMATION ACTUATOR

1.5 Approvals

Lists CENELEC, CSA, and FM approvals for NP700/B construction.

1.6 Recycling and disposal of a rejected positioner

Information on recycling and disposal of the positioner.

1.7 Safety precautions

Crucial safety warnings regarding performance limitations and pressurized parts.

2.1 General

General mounting information and ordering of mounting parts.

3 INPUT SIGNAL AND DIRECTIONS OF OPERATION

3.1 Changeover piece

Explains how to turn the changeover piece for different functions.

3.2 Cam plate

Describes signal ranges and arrow indicators on the cam plate.

4 PRELIMINARY ACTIONS FOR THE ADJUSTMENT

4.1 Position of the changeover piece

Instructions for positioning the changeover piece (D or R).

5 BASIC ADJUSTMENT

Basic Adjustment Procedure

Step-by-step guide for performing the basic adjustment of the positioner.

6 -ADJUSTMENT

-Adjustment Procedure

Details on marking and setting the cam plate for dead angle adjustment.

7 SPLIT-RANGE ADJUSTMENT

Split-Range Adjustment Procedure

How to perform split-range adjustments using the cam plate.

8 MAINTENANCE

Maintenance Procedures

Instructions for supply air filter, pilot valve, and diaphragm maintenance.

9 TROUBLE SHOOTING

10 OPTIONS

Positioner Options

Overview of available options like flameproof, natural gas, dust-proof, and pressure gauges.

11 TOOLS

12 ORDERING SPARE PARTS

13 DRAWINGS AND PARTS LISTS

13.1 Exploded view and parts list

Visual representation of components and their associated part numbers.

13.2 Mounting parts for B1 C6-502 and B1 J8-322 actuators (S1)

Lists mounting parts for specific actuator models (B1C6-502, B1J8-322).

13.3 Mounting parts for Quadra-Powr actuators (S1)

Lists mounting parts for Quadra-Powr actuators.

13.4 Mounting parts for B1 C6-20 and B1 J8-20 actuators (S2)

Lists mounting parts for specific actuator models (B1C6-20, B1J8-20).

13.5 Mounting parts for B1 C25-502 and B1 J25-322 actuators (S2)

Lists mounting parts for specific actuator models (B1C25-502, B1J25-322).

14 TYPE CODE

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