Lake Shore 321-02 Manuals

Manuals and User Guides for Lake Shore 321-02. We have 1 Lake Shore 321-02 manual available for free PDF download: User Manual

Lake Shore 321-02 User Manual

Lake Shore 321-02 User Manual (130 pages)

Autotuning

Brand: Lake Shore | Category: Temperature Controller | Size: 1 MB

Table of Contents

Table of Contents
3
Introduction
9
- General
  9
- Options and Accessories
  9
- Description
  10
Model 321 Temperature Controller Front Panel
10
Model 321 Block Diagram
14
Installation
17
- General
  17
- Inspection and Unpacking
  17
- Repackaging for Shipment
  17
- Definition of Rear Panel Connections
  18
Typical Model 321 Rear Panel
18
Model 2002 RJ-11 to DB-25 Adapter
18
- Environmental Requirements
  19
- Grounding and Shielding
  19
- Sensor Input Settings
  19
- Sensor Installation
  20
- Diode (Model 321-01) and Platinum (Model 321-02) Connections
  20
- Two-Lead Versus Four-Lead Measurements
  20
- Connecting Leads to the Sensor
  21
- Sensor Mounting
  21
- Measurement Errors Due to AC Noise
  22
- Thermocouple (Model 321-04) Connections
  23
- Thermocouple Compensation
  23
- Thermocouple Wire Types at Cryogenic Temperatures
  23
- Sensor Input Error Messages
  24
- Sensor Curve Selection
  24
- Sensor Curves
  25
- Precision Calibration Option
  26
- 2.10 Heater Setup
  26
- 2.11 Rack Mounting
  27
- 2.12 Power up
  27
- 2.12.1 Power up Sequence
  27
- 2.12.2 Power up (PUP) Configuration
  28
- 2.12.3 Power up Errors
  28
Model 321 Front Panel
29
Operation
29
- General
  29
- Definition of Front Panel Controls
  29
- Front Panel Keypad Definitions
  29
Definition of 2 by 16 Display
30
- Thermometry Functions
  31
- Input Type
  31
- Units
  31
- Units for Silicon Diode Input (Model 321-01)
  32
- Units for Platinum Resistor Input (Model 321-02)
  32
- Units for Thermocouple Input (Model 321-04)
  32
- Thermocouple Temperature Compensation (Model 321-04 Only)
  33
- Display Filter
  33
- Curve
  33
- Softcal
  34
- Sensor Curves
  34
- Softcal Errors
  35
- Customer-Performed Softcal
  35
- Entering Voltage Values from a Lake Shore Softcal Report
  37
- Erasing Softcal Curve
  38
Sensor Calibrations and Precision Options
39
- Control Functions
  40
- Heater High, Low, and off
  40
- Setpoint
  41
- Voltage Resolution (Models 321-01 & -04 Only)
  41
- Resistance Resolution (Model 321-02 Only)
  41
- Ramp
  41
- Autotune
  42
- Initial Values of PID Parameters in Autotuning Mode
  43
- Minimum Overshoot
  43
- Minimum Time to Setpoint
  43
- Gain Only
  43
- Manual Control Settings (PID)
  43
- Setting Gain (Proportional)
  43
- Setting Reset (Integral)
  44
- Setting Rate (Derivative)
  44
- Effect of Temperature on Tuning Parameters
  45
- Zone Setting
  45
Record of Zone Settings
47
- Interface and Miscellaneous Functions
  48
- Baud
  48
- Analog out
  48
- Factory Default Settings
  49
- Power up (PUP) Configuration
  50
- Thermocouple Controller Operation (Model 321-04)
  50
- Sensor Attachment
  50
- Thermocouple Curve Selection
  50
- Thermocouple Compensation from Front Panel
  50
- Thermocouple Compensation from Remote Interface
  50
- Internal Offset Adjustment
  51
- Curve Format
  51
Optional Serial Interface Connections
53
- Hardware Support
  54
- Character Format
  54
- Message Strings
  54
- Message Flow Control
  55
- Changing Baud Rate
  55
- Serial Interface Basic Programs
  56
- Visual Basic Serial Interface Program Setup
  56
- Quick Basic Serial Interface Program Setup
  59
- Program Operation
  60
- Troubleshooting
  60
- Serial Interface Commands
  61
- Display Commands
  62
- Control Process Commands
  64
- Curve Commands
  68
- Analog Output Commands
  72
- User Curve 11 Loading Program
  73
Remote Operation
53
- General
  53
- Serial Interface Overview
  53
- Physical Connection
  53
Options and Accessories
75
- General
  75
- Models
  75
- Options
  75
- Accessories
  75
Model 2001 RJ-11 Cable Assembly
77
Model 2003 RJ-11 to DE-9 Adapter
77
Model 3026 Dual Rack-Mount Shelf
79
Service and Calibration
81
- General
  81
- General Maintenance
  81
- Changing Power Setting and Fuse Rating
  81
- Rear Panel Connector Definitions
  82
Power Fuse Access
82
SERIAL I/O RJ-11 Connector Details
82
ANALOG OUTPUT Connector Details
83
Diode and Platinum SENSOR Connector Details
83
HEATER Connector Details
83
- Optional Serial Interface Cable and Adapters
  84
Model 2001 RJ-11 Cable Assembly Wiring Details
84
Model 2002 RJ-11 to DB-25 Adapter Wiring Details
84
Model 2003 RJ-11 to DE-9 Adapter Wiring Details
84
- Operating Software EPROM Replacement
  85
Location of Operating Software Eproms
85
- Error Messages
  86
- Changing Sensor Input Type
  87
- Model 321-01 (Silicon Diode) Calibration
  87
- Model 321-01 Calibration (with Precision Resistor)
  87
- Test Equipment
  87
- Test Setup
  87
- Input Calibration
  88
- Analog Output Calibration
  88
Typical Model 321 PCB Layout
89
Appendix A - Glossary of Terminology
99
Appendix B - Handling Liquid Helium and Nitrogen
107
- B2.0 Properties
  107
- B3.0 Handling Cryogenic Storage Dewars
  107
Typical Cryogenic Storage Dewar
107
- B4.0 Liquid Helium and Nitrogen Safety Precautions
  108
- B5.0 Recommended First Aid
  108
Appendix C - Curve Tables
109
- C1.0 General
  109
Appendix Dapplication Notes
113
- D1.0 General
  113

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