Lakeshore 340 - Page 8

Lake Shore Model 340 Temperature Controller User’s Manual
iv Table of Contents
TABLE OF CONTENTS (Continued)
Chapter/Paragraph Title Page
6.13 CONTROL OUTPUT LIMITS........................................................................................................... 6-11
6.13.1 Setpoint Limit ............................................................................................................................... 6-11
6.13.2 Control Output Slope Limit ........................................................................................................... 6-11
6.13.3 Heater Range Limit ...................................................................................................................... 6-11
7 ANALOG OUTPUT, DIGITAL I/O. ALARMS, AND RELAY OPERATION ............................................................ 7-1
7.0 GENERAL ......................................................................................................................................... 7-1
7.1 ANALOG OUTPUTS.......................................................................................................................... 7-1
7.1.1 Input Mode for Analog Output ........................................................................................................ 7-2
7.1.2 Example of Low and High Parameter Setting ................................................................................ 7-2
7.1.3 Loop 2 Mode for Analog Output 2 .................................................................................................. 7-2
7.1.4 Manual Mode Operation of the Analog Outputs ............................................................................. 7-3
7.2 DIGITAL INPUTS AND OUTPUTS (I/O)............................................................................................7-3
7.2.1 Digital Output Modes...................................................................................................................... 7-3
7.2.2 Digital Outputs in Alarm Mode ....................................................................................................... 7-3
7.2.3 Digital Outputs in Scanner Mode.................................................................................................... 7-3
7.2.4 Digital Outputs in Manual Mode ..................................................................................................... 7-4
7.2.5 Digital Input Modes ........................................................................................................................ 7-4
7.3 INPUT ALARMS ................................................................................................................................ 7-4
7.3.1 Enabling an Input Alarm................................................................................................................. 7-4
7.3.2 Selecting an Input Alarm Source.................................................................................................... 7-5
7.3.3 Input Alarm High and Low Settings ................................................................................................ 7-5
7.3.4 Input Alarm Latching ...................................................................................................................... 7-5
7.3.5 Input Alarm Relay Setup ................................................................................................................ 7-5
7.3.6 Input Alarm Reset .......................................................................................................................... 7-6
7.3.7 Audible Beeper............................................................................................................................... 7-6
7.4 HIGH AND LOW RELAYS................................................................................................................. 7-6
7.4.1 Selecting a Relay Mode ................................................................................................................. 7-6
7.4.2 Manually Setting a Relay ............................................................................................................... 7-6
8 INSTRUMENT PROGRAMMING............................................................................................................................ 8-1
8.0 GENERAL ......................................................................................................................................... 8-1
8.1 CURVE ENTRY FROM THE FRONT PANEL ................................................................................... 8-1
8.1.1 Curve Numbers and Storage ......................................................................................................... 8-1
8.1.2 Front Panel Curve Entry Operations .............................................................................................. 8-1
8.1.3 Front Panel Curve Edit................................................................................................................... 8-2
8.1.4 Front Panel Curve Copy................................................................................................................. 8-3
8.1.5 Front Panel Curve Erase................................................................................................................ 8-3
8.2 SOFTCAL™ ...................................................................................................................................... 8-4
8.2.1 SoftCal and Silicon Diode Sensors ................................................................................................ 8-4
8.2.2 SoftCal Accuracy with Silicon Diode Sensors ................................................................................ 8-5
8.2.3 SoftCal and Platinum Sensors ....................................................................................................... 8-5
8.2.4 SoftCal Accuracy with Platinum Sensors ....................................................................................... 8-5
8.2.5 Creating a SoftCal Calibration Curve ............................................................................................. 8-6
8.3 INTERNAL PROGRAMMING ............................................................................................................ 8-6
8.3.1 Program Instructions ...................................................................................................................... 8-6
8.3.2 Internal Programming Operations ................................................................................................ 8-10
8.3.3 Enter or Edit an Internal Program................................................................................................. 8-10
8.3.4 Saving a Program ........................................................................................................................ 8-11
8.3.5 Summary of Key Operation.......................................................................................................... 8-11
8.3.6 Example of an Internal Program (Example 1) .............................................................................. 8-11
8.3.7 Example of Using Subprograms (Example 2) .............................................................................. 8-12
8.3.8 Run an Internal Program.............................................................................................................. 8-12
8.3.9 Stop a Running Program.............................................................................................................. 8-12
8.3.10 Clear Internal Program Memory................................................................................................... 8-13
8.4 DATA CARD OPERATION.............................................................................................................. 8-13
8.4.1 Data Logging To A Data Card...................................................................................................... 8-13
8.4.2 Reading From A Data Card.......................................................................................................... 8-16
8.4.3 Writing To A Data Card ................................................................................................................ 8-16
8.4.4 Erasing A Data Card .................................................................................................................... 8-16