v
List of Figures and Tables
Figures
Figure 1: Preferred Method To Connect an Overall Metal Braided Shielded Cable.................. 22
Figure 2: Alternate Method To Connect an Overall Metal Braided Shielded Cable.................. 22
Figure 3: Metal Single and Double Ferrule Compression-type Vacuum Fittings...................... 24
Figure 4: Location of the Zero Pot on Transducer Endcaps....................................................... 26
Figure 5: Location of the COARSE ZERO Adjustment Control ............................................... 27
Figure 6: Dimensions of the Types 622B, 623H, and 626D Transducers.................................. 29
Figure 7: Power, Signal, and Chassis Grounding Scheme ......................................................... 30
Figure 8: Type 623H Endcap...................................................................................................... 37
Figure 9: How Hysteresis Affects Accuracy and Relay Chatter ................................................ 38
Figure 10: How To Measure the Trip Point Voltage for Type 623H......................................... 39
Figure 11: The Relay Board ....................................................................................................... 41
Figure 12: The Alternate Relay Board........................................................................................ 42
Tables
Table 1: Definition of Symbols Found on the Unit .........................................................................2
Tabelle 2: Bedeutung der am Gerät angebrachten Symbole ...........................................................6
Tableau 3: Définition des symboles apparaissant sur l'unité.........................................................10
Tabla 4: Definición de los símbolos hallados en la unidad ............................................................14
Table 5: Interface Cables...............................................................................................................20
Table 6: Highest Pressure Suggested for Proper Zero Adjustment ...............................................26
Table 7: Required Inputs for Types 622B, 623H, and 626D Transducers ....................................30
Table 8: Post Assignments of Type 622D Transducer..................................................................31
Table 9: Pinout of Type 626D Transducer ....................................................................................32
Table 10: Post Assignments of Type 623H Transducer, TB1.......................................................33
Table 11: Post Assignments of Type 623H Transducer, TB2.......................................................33
Table 12: Suggested Pressures for Reading and Control...............................................................36
Table 13: Factory-Set Positions of the Shorting Jumpers .............................................................43
Table 14: Shorting Jumper Positions for Hysteresis......................................................................44
Table 15: Troubleshooting Chart...................................................................................................47
