ENMET PID-Guard - Manual (Page 2)

Table of Contents
1.0 INTRODUCTION........................................................................................................................................................ 1
1.1 U NPACK ....................................................................................................................................................................................1
1.2 C HECK O RDER ..........................................................................................................................................................................1
1.3 S ERIAL N UMBERS ......................................................................................................................................................................1
2.0 COMPONENTS OF THE PID-GUARD ...................................................................................................................... 2
2.1 PID-G UARD ELEMENTS .............................................................................................................................................................2
2.2 PID-G UARD O PERATIONAL F EATURES .......................................................................................................................................2
2.3 C IRCUIT B OARD F EATURES ........................................................................................................................................................4
3.0 INSTALLATION ......................................................................................................................................................... 5
3.1 M OUNTING PID-G UARD ............................................................................................................................................................5
3.2 W IRING THE PID-G UARD ..........................................................................................................................................................6
3.2.1 Air Supply..........................................................................................................................................................................6
3.2.2 Power Supply.....................................................................................................................................................................6
3.2.3 Relay Contacts...................................................................................................................................................................7
4.0 OPERATION ............................................................................................................................................................... 8
4.1 S TART U P PID-G UARD ..............................................................................................................................................................8
4.1.1 Typical Start Up.................................................................................................................................................................8
4.2 N ORMAL D ISPLAY M ODE ..........................................................................................................................................................9
4.2.1 Alarm Conditions PID-G UARD ...........................................................................................................................................9
4.3 H YDROCARBON S ENSOR R ESPONSE ...........................................................................................................................................9
5.0 MAINTENANCE ....................................................................................................................................................... 10
5.1 M AINTENANCE M ENUS ............................................................................................................................................................10
5.2 PID-G UARD M AINTENANCE A DJUSTMENTS .............................................................................................................................11
5.2.1 Advance/Exit Maintenance Menu .....................................................................................................................................11
5.2.2 Zero Adjust ......................................................................................................................................................................11
5.2.3 Gas Span Calibration.......................................................................................................................................................12
5.2.4 Alarm Set Points ..............................................................................................................................................................14
5.2.5 Span Set...........................................................................................................................................................................14
5.4 S ENSOR R EPLACEMENT ...........................................................................................................................................................16
6.0 REPLACEMENT PARTS ......................................................................................................................................... 17
7.0 TECHNICAL DATA AND SPECIFICATIONS ....................................................................................................... 17
8.0 WARRANTY ............................................................................................................................................................. 18
APPENDIX A: GAS IONIZATION POTENTIALS....................................................................................................... 19
List of Tables
T ABLE 1 : R ELAY F AILSAFE S ETTINGS ................................................................................................................................. 7
T ABLE 2: F ACTORY A LARM S ET P OINTS .............................................................................................................................. 9
T ABLE 3: PID-G UARD M AINTENANCE M ENUS S EQUENCE .....................................................................................................10
List of Illustrations
F IGURE 1: E XTERNAL PID-G UARD F EATURES ...................................................................................................................... 3
F IGURE 1 A : O PTIONAL R EGULATOR AND S AMPLE A IR H OSE .................................................................................................. 3
F IGURE 2: PID-G UARD C IRCUIT B OARD F EATURES ............................................................................................................... 4
F IGURE 3: M OUNTING PID-G UARD ...................................................................................................................................... 5
F IGURE 4: P OWER T ERMINAL C ONNECTIONS PID-G UARD ...................................................................................................... 6
F IGURE 5: R ELAY T ERMINAL C ONNECTIONS PID-G UARD ....................................................................................................... 7
F IGURE 6: C ALIBRATION A DAPTER .....................................................................................................................................12
F IGURE 7: PID-G UARD M AINTENANCE M ENU F LOW C HART ..................................................................................................15
F IGURE 8: PID-G UARD S ENSOR R EPLACEMENT ..................................................................................................................16
Reference Information:
N OTE : [important information about use of instrument]
C AUTION : [affects equipment – if not followed may cause damage to instrument, sensor etc…]
W ARNING : [affects personnel safety – if not followed may cause bodily injury or death.]
Earth Ground