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
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