MKS Baratron 631D, Instruction Manual, Page: 6 / 64

Table of Contents
iv
Sensor ................................................................................................................ 26
Piping Considerations and Port Connections .................................................................. 27
General ............................................................................................................... 27
Sensor Fittings ................................................................................................... 27
Chapter Three: Overview ............................................................................................................ 29
Sensor .............................................................................................................................. 29
Signal Conditioner .......................................................................................................... 29
Instrument Components and Dimensions ....................................................................... 29
Interface Connector ......................................................................................................... 33
Pressure Output ............................................................................................................... 34
Overpressure Considerations .......................................................................................... 34
Labels .............................................................................................................................. 34
Wiring Diagram Label ....................................................................................... 34
“Caution Hot” Label .......................................................................................... 35
Serial Number Label .......................................................................................... 35
Chapter Four: Operation ............................................................................................................. 37
How To Zero the Type 631 Transducer .......................................................................... 37
How To Adjust the Zero Potentiometer ............................................................. 38
How To Adjust the Coarse Zero Switch ............................................................ 39
Heater Status LEDs and Heater Alarm Relay ................................................................. 40
Over-Temperature Protection ............................................................................ 40
Chapter Five: Optional Relay System ......................................................................................... 43
General Information ........................................................................................................ 43
Trip Point Parameters ..................................................................................................... 43
Trip Point Values ............................................................................................... 43
Trip Point Direction ........................................................................................... 44
Chapter Six: Maintenance and Troubleshooting ......................................................................... 47
General Maintenance ...................................................................................................... 47
Troubleshooting .............................................................................................................. 48
High, Low, or Erratic Output, or No Output at All ............................................ 48
Appendix A: Product Specifications ........................................................................................... 49
Physical Specifications ................................................................................................... 49
Performance Specifications ............................................................................................ 49