Lakeshore 331S - Page 6

Lake Shore Model 331 Temperature Controller User’s Manual
TABLE OF CONTENTS (Continued)
Chapter/Paragraph Title Page
3 INSTALLATION ...................................................................................................................................................... 3-1
3.0 GENERAL ......................................................................................................................................... 3-1
3.1 INSPECTION AND UNPACKING ...................................................................................................... 3-1
3.2 REPACKAGING FOR SHIPMENT .................................................................................................... 3-1
3.3 REAR PANEL DEFINITION ............................................................................................................... 3-2
3.4 LINE INPUT ASSEMBLY ................................................................................................................... 3-3
3.4.1 Line Voltage ................................................................................................................................... 3-3
3.4.2 Line Fuse and Fuse Holder ............................................................................................................ 3-3
3.4.3 Power Cord .................................................................................................................................... 3-3
3.4.4 Power Switch ................................................................................................................................. 3-4
3.5 DIODE/RESISTOR SENSOR INPUTS .............................................................................................. 3-4
3.5.1 Sensor Input Connector and Pinout ............................................................................................... 3-4
3.5.2 Sensor Lead Cable ........................................................................................................................ 3-5
3.5.3 Grounding and Shielding Sensor Leads ......................................................................................... 3-5
3.5.4 Sensor Polarity ............................................................................................................................... 3-5
3.5.5 Four-Lead Sensor Measurement ................................................................................................... 3-6
3.5.6 Two-Lead Sensor Measurement .................................................................................................... 3-6
3.5.7 Lowering Measurement Noise........................................................................................................ 3-6
3.6 THERMOCOUPLE SENSOR INPUTS .............................................................................................. 3-7
3.6.1 Sensor Input Terminals .................................................................................................................. 3-7
3.6.2 Thermocouple Installation .............................................................................................................. 3-7
3.6.3 Grounding and Shielding ................................................................................................................ 3-7
3.7 HEATER OUTPUT SETUP ............................................................................................................... 3-8
3.7.1 Loop 1 Output ................................................................................................................................ 3-8
3.7.2 Loop 1 Heater Output Connector ................................................................................................... 3-8
3.7.3 Loop 1 Heater Output Wiring ......................................................................................................... 3-8
3.7.4 Loop 1 Heater Output Noise .......................................................................................................... 3-9
3.7.5 Loop 2 Output ................................................................................................................................ 3-9
3.7.6 Loop 2 Output Resistance .............................................................................................................. 3-9
3.7.7 Loop 2 Output Connector ............................................................................................................... 3-9
3.7.8 Loop 2 Heater Protection ............................................................................................................... 3-9
3.7.9 Boosting the Output Power ............................................................................................................ 3-9
3.8 ANALOG OUTPUT .......................................................................................................................... 3-10
3.9 RELAYS .......................................................................................................................................... 3-10
3.10 INITIAL SETUP AND SYSTEM CHECKOUT PROCEDURE .......................................................... 3-11
4 OPERATION ........................................................................................................................................................... 4-1
4.0 GENERAL ......................................................................................................................................... 4-1
4.1 FRONT PANEL DESCRIPTION ........................................................................................................ 4-1
4.1.1 Keypad Definitions ......................................................................................................................... 4-1
4.1.2 Annunciators .................................................................................................................................. 4-3
4.1.3 General Keypad Operation ............................................................................................................ 4-3
4.1.4 Display Definition ........................................................................................................................... 4-4
4.2 TURNING POWER ON ..................................................................................................................... 4-4
4.3 DISPLAY FORMAT AND SOURCE (UNITS) SELECTION ............................................................... 4-5
4.4 INPUT SETUP ................................................................................................................................... 4-7
4.4.1 Diode Sensor Input Setup - 10 µA Excitation Current .................................................................... 4-7
4.4.2 Diode Sensor Input Setup - 1 mA Excitation Current ..................................................................... 4-8
4.4.3 Resistor Sensor Input Setup .......................................................................................................... 4-9
4.4.3.1 Thermal EMF Compensation ...................................................................................................... 4-9
4.4.4 Thermocouple Sensor Input Setup ............................................................................................... 4-10
4.4.4.1 Room-Temperature Compensation .......................................................................................... 4-10
4.4.4.2 Room-Temperature Calibration Procedure ............................................................................... 4-11
4.5 CURVE SELECTION ....................................................................................................................... 4-12
4.5.1 Diode Sensor Curve Selection ..................................................................................................... 4-13
ii Table of Contents