Today David & Darryl came in and we tested the modifications David made on Friday to stub out the broken DAC #2. All works fine.
We were seeing too many events at a 250 mV (1st) threshold, causing the system to hang, so we upped the 1st threshold to 300 mV.
There is a weird problem where the third comparator output isn't transitioning on the scope display, but it seems to be working fine in the actual code, so we are not worried about it too much at the moment. (The 2nd one also isn't transitioning, but that is expected due to the bad DAC.)
We manually checked all the DAC levels to be sure they are still good, and they are all fine except for DAC #2 which is (still) stuck at about +70 mV. But that doesn't matter now that we are skipping it.
Started a new data-collection run in the perpendicular hodoscope configuration (finally!). We are running with the cooling fan only (thermoelectric plate disconnected) to prevent condensation/drips. TO DO: Hook up plate terminals to a resistor, measure voltage across resistor; this then gives a measurement of heat flow through the plate. :)
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