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Hi Don,</div>
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Here is an update on the progress of the heater controls.</div>
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<b>PSIC assembly and testing:</b></div>
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12 PSICs have been assembled and fully tested with no issues (Mindy Leffel and George Jacobs). 10 of these have been registered with the labs Non-NRTL program. At the current rate 16 should be registered by the second week in November. DSG plans to install
them in the hall at that point</div>
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<b>Controls rack:</b></div>
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Mindy has assembled and installed 3 of the 4 expansion cRIOs (48 channel controls, 48 channel safety, and 96 crystal temperatures) with the necessary terminal blocks for thermocouples and cable drain grounds. I have installed the main power supply and have
tested the thermocouple channels to ensure the inputs are correct. She is working on adding the 4th (39 light guide temperature).</div>
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I am working on the safety system relay coil power distribution and Omega process controller and watchdog relay installation.</div>
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FYI, I have taken one of your extension cables from EEL 126 to test that we will have no issues reading a thermocouple using the controls and the Omega...it looks fine.</div>
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I still have at least a week of work to wrap up the connection in the controls rack.</div>
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<b>I will request help moving it to the hall in a few weeks</b>.</div>
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<b>Controls and Monitoring Software:</b></div>
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I have written code for:</div>
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<b>Main</b> - runs all subroutine programs</div>
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<b>48 channel controls DAQ</b> - reads in temperatures, current...etc from sensors</div>
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<b>48 channel PID</b> - reads zone temp, compares to setpoint and automatically adjust channel control voltage value</div>
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<b>48 channel control voltage set point</b> - Takes output from PID or manual input and sets control voltage to power supply</div>
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<b>48 channel heater controls interlock</b> - Software over-temperature interlocks for each channel</div>
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Need to write:</div>
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96 channel crystal temperature monitor</div>
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39 channel light guide temperature monitor</div>
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EPICS PV updater</div>
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Graphical User Interface</div>
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<b>These should all be done sometime in November.</b></div>
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FYI - I will be away from the lab 10/26 to 11/1</div>
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Regards,</div>
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Marc</div>
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