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Metso NE727 User Manual

Metso NE727
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2 7 NE 72 en
READ THESE INSTRUCTIONS FIRST!
These instructions provide information about safe handling and operation of the positioner.
If you require additional assistance, please contact the manufacturer or manufacturer's representative.
Addresses and phone numbers are printed on the back cover.
SAVE THESE INSTRUCTIONS!
Subject to change without notice.
All trademarks are property of their respective owners.
Table of Contents
1 INTRODUCTION ...................................................3
1.1 General view........................................................... 3
1.2 Principle of operation .........................................3
1.3 Marking of positioner ..........................................3
1.4 Technical specifications ..................................... 4
1.5 Recycling and disposal of a rejected
positioner ................................................................ 4
1.6 Safety precautions ............................................... 4
2 MOUNTING ON THE METSO ACTUATOR ............5
2.1 General ..................................................................... 5
2.2 Installing positioner NE700/S1 on
Metso actuators with VDI/VDE 3845
mounting face .......................................................5
2.3 NE_700/700 positioner/limit switch
combination (Obsolete since 2013) ...............5
2.4 Piping of supply air ..............................................5
2.5 Instrument air supply ..........................................8
2.6 Electric connections ............................................8
3 INPUT SIGNAL AND DIRECTIONS OF
OPERATION ..........................................................8
3.1 Changeover piece ................................................8
3.2 Cam plate ................................................................8
4 PRELIMINARY ACTIONS FOR
THE ADJUSTMENT ...............................................9
4.1 Position of the changeover piece ...................9
4.2 Pilot valve ................................................................9
4.3 Setting the internal feed-back spring ...........9
4.4 Position of the cam plate ...................................9
5 BASIC ADJUSTMENT ......................................... 10
6a
0
ADJUSTMENT ................................................10
7 SPLIT-RANGE ADJUSTMENT .............................11
8 MAINTENANCE ..................................................11
8.1 Supply air filter ................................................... 11
8.2 Pilot valve ............................................................. 11
8.3 Replacement of the diaphragms .................. 12
8.4 Force coil-nozzle assembly ............................ 12
8.5 Changing the restriction assembly ............. 12
9 TROUBLESHOOTING .........................................12
9.1 Electrical defects ................................................ 12
9.2 Mechanical defects ........................................... 13
10 OPTIONS ............................................................ 13
10.1 NE700/R dust-proof construction (IP65).... 13
10.2 NE700/A with pressure gauges .....................13
11 TOOLS ................................................................ 13
12 ORDERING SPARE PARTS ................................. 13
13 DRAWINGS AND PARTS LISTS .......................... 14
13.1 Exploded view and parts list ..........................14
13.2 Mounting parts for B1C6-502 and
B1J8-322 actuators (S1) ....................................16
13.3 Mounting parts for Quadra-Powr®
actuators (S1) .......................................................17
13.4 Mounting parts for B1C6-20 and
B1J8-20 actuators (S2) ......................................18
13.5 Mounting parts for B1C25-502 and
B1J25-322 actuators (S2) ..................................19
14 TYPE CODE ........................................................ 20

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Metso NE727 Specifications

General IconGeneral
BrandMetso
ModelNE727
CategoryValve Positioners
LanguageEnglish

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