Contents
1 INTRODUCTION ........................................................................................................ 3
2 GENERAL REQUIREMENTS ......................................................................................... 4
3 MODEL NUMBER DESCRIPTION OF SVI FF POSITIONER .............................................. 5
4 FLAMEPROOF AND DUST IGNITION PROOF REQUIREMENTS ...................................... 6
General .............................................................................................................. 6
4.1
Cable Glands ..................................................................................................... 6
4.2
Natural gas ......................................................................................................... 6
4.3
Bolting ................................................................................................................ 6
4.4
Carbon Disulphide Exclusion ............................................................................. 6
4.5
Label Cleaning ................................................................................................... 6
4.6
Dust Environment ............................................................................................... 6
4.7
5 INTRINSICALLY SAFE REQUIREMENTS ........................................................................ 7
Div 2 ................................................................................................................... 7
5.1
Category II 1 (Zone 0) ........................................................................................ 7
5.2
Category II 1 (Zone 0) ........................................................................................ 7
5.3
Internal pollution degree 2 and overvoltage category III ..................................... 7
5.4
6 DESCRIPTION OF FLAMEPROOF AND INTRINSICALLY SAFE MARKINGS ....................... 8
7 INTRINSICALLY SAFE INSTALLATION WIRING REQUIREMENTS ................................. 10
8 NOTES FOR INTRINSICALLY SAFE INSTALLATION ..................................................... 11
HAZARDOUS LOCATION ............................................................................... 11
8.1
FIELD WIRING ................................................................................................. 11
8.2
Foundation Fieldbus IN (+) and (-) Terminals .................................................. 11
8.3
PV 1-5VDC (+) and (-) Terminals ..................................................................... 12
8.4
SW (+) and (-) Terminals .................................................................................. 12
8.5
REMOTE (1) and (2) and (3) Terminals ........................................................... 12
8.6
Digital In Terminals .......................................................................................... 12
8.7
Entity Requirement ........................................................................................... 13
8.8
Use in dust atmosphere ................................................................................... 13
8.9
9 REPAIR .................................................................................................................... 13
Main Cover ....................................................................................................... 14
9.1
I/P ..................................................................................................................... 14
9.2
Relay ................................................................................................................ 14
9.3
Electronics........................................................................................................ 14
9.4
Pneumatic Cover .............................................................................................. 14
9.5