Table of Contents
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7108
User's Guide
6
7
8
Parts and Controls .............................................................................. 6-1
6.1
Front Control Panel .................................................................... 6-1
6.2 Back Panel .................................................................................... 6-2
General Operation ............................................................................... 7-1
7.1
Switching to 230 V Operation .................................................... 7-1
7.2
Bath Fluid................................................................................... 7-1
7.2.1
Temperature Range ............................................................... 7-1
7.2.2
Viscosity ................................................................................. 7-2
7.2.3
Specific Heat .......................................................................... 7-2
7.2.4
Thermal Conductivity ............................................................. 7-2
7.2.5
Thermal Expansion ................................................................ 7-2
7.2.6
Electrical Resistivity ............................................................... 7-2
7.2.7
Fluid Lifetime ......................................................................... 7-2
7.2.8
Safety ..................................................................................... 7-3
7.2.9
Cost ....................................................................................... 7-3
7.2.10
Commonly Used Fluids .......................................................... 7-3
7.2.10.1
Water ................................................................................. 7-3
7.2.10.2
Ethylene Glycol .................................................................. 7-4
7.2.10.3
Methanol ............................................................................ 7-4
7.2.10.4
Mineral Oil .......................................................................... 7-4
7.2.10.5
Silicone Oils ....................................................................... 7-4
7.2.11
Fluid Characteristics Charts ............................................... 7-4
7.2.11.2
About the Graph ................................................................ 7-5
7.3
Stirring ....................................................................................... 7-7
7.4
Power ........................................................................................ 7-8
7.5
Heater/Cooling ........................................................................... 7-8
7.6
Fluid Drain ................................................................................. 7-8
7.7
Temperature Controller.............................................................. 7-8
Controller Operation ........................................................................... 8-1
8.1
Bath Temperature ...................................................................... 8-1
8.2
Temperature Set-point ............................................................... 8-1
8.2.1
Programmable Set-points ...................................................... 8-1
8.2.2
Set-point Value ...................................................................... 8-3
8.2.3
Set-point Vernier .................................................................... 8-3
8.3
Temperature Scale Units ........................................................... 8-4
8.4
Secondary Menu........................................................................ 8-5
8.5
Thermal Electric Devices (TEDs) ............................................... 8-5
8.6
Proportional Band ...................................................................... 8-6
8.7
Controller Configuration ............................................................. 8-7
8.8
Probe Parameters ...................................................................... 8-8
8.8.1
D0 .......................................................................................... 8-8
8.8.2
Dg .......................................................................................... 8-8
8.9
Serial Interface Parameters ....................................................... 8-8
8.9.1
Baud Rate .............................................................................. 8-8
8.9.2
Sample Period ....................................................................... 8-9
8.9.3
Duplex Mode .......................................................................... 8-9
8.9.4
Linefeed ................................................................................. 8-10
8.10
IEEE-488 Parameters ................................................................ 8-10
8.10.1
IEEE-488 Address ................................................................. 8-10
ii
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