Table of Contents
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Chapter/Paragraph
1
INTRODUCTION ............................................................................................................................
1.1
GENERAL ...................................................................................................................
1.2
DESCRIPTION ............................................................................................................
2
INSTALLATION ..............................................................................................................................
2.1
GENERAL ...................................................................................................................
2.2
INSPECTION AND UNPACKING................................................................................
2.3
REPACKAGING FOR SHIPMENT ..............................................................................
2.4
POWER AND GROUNDING REQUIREMENTS.........................................................
2.4.1
Power Requirements................................................................................................
2.4.2
Power Cord and Grounding Requirements ..............................................................
2.5
SENSOR AND INTERFACE CONNECTIONS............................................................
2.5.1
J1 Sensor Input Connections ...................................................................................
2.5.2
J2 Serial I/O..............................................................................................................
2.5.3
J3 Alarms .................................................................................................................
2.5.4
J4 Monitors...............................................................................................................
3
OPERATING INSTRUCTIONS.......................................................................................................
3.1
GENERAL ...................................................................................................................
3.2
CONTROLS AND INDICATORS.................................................................................
3.3
VOLTAGE AND TEMPERATURE DISPLAY...............................................................
3.4
STANDARD CURVES.................................................................................................
3.4.1
Curve and Alarm Action Selection............................................................................
3.5
ALARM OPERATION ..................................................................................................
3.5.1
Observing the Alarm Setpoint ..................................................................................
3.5.2
Alarm Action .............................................................................................................
3.5.3
Latching or Non-Latching HI and LO Alarms ...........................................................
3.5.4
Setting the HI and LO Alarms...................................................................................
3.6
CHANNEL SELECTION FOR THE MODEL 819 ........................................................
3.6.1
Channel Scan...........................................................................................................
3.6.2
Setting the Dwell Time for a Given Channel ............................................................
4
REMOTE OPERATION ..................................................................................................................
4.1
RS-232C SERIAL INTERFACE...................................................................................
4.2
INTERFACE COMMANDS..........................................................................................
4.2.1
Display and Alarm Parameter Commands...............................................................
4.2.2
Output Request Commands.....................................................................................
4.2.3
Model 819 Scan Parameter Commands ..................................................................
5
5.1
FUSE REPLACEMENT ...............................................................................................
5.2
LINE VOLTAGE SELECTION .....................................................................................
5.3
CALIBRATION.............................................................................................................
5.4.1
Current Source Calibration ..........................................................................................
5.4.2
A/D Converter Calibration............................................................................................
Table of Contents
Lake Shore Model 818 / 819 Cryopump Monitor User's Manual
TABLE OF CONTENTS
Title
Page
1-1
1-1
1-1
2-1
2-1
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
3-1
3-1
3-1
3-2
3-2
3-2
3-2
3-2
3-3
3-3
3-4
3-4
3-4
3-4
4-1
4-1
4-1
4-1
4-2
4-3
5-1
5-1
5-1
5-1
5-2
i
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Table of Contents
