Page History

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SVT chiller flow switch tested. Drained and refilled chiller in the process; level is just above 3/4, jug is empty. Chiller is running at stage 3 (we got a pressure trip at stage 4, which has not happened before - not sure why); this will be our normal setting. Estimated flow (based on pressure drop vs. flow switch trip) is 1.5 GPM. SVT chiller is connected to Wesley's EPICS stuff; work in progress.

2015-02-12

• FEB chiller setup simplified so we just have the flow meter and flow switch (no manifold). This will make it easier to swap hoses or add components if we decide to do that before installation. Flow is unchanged at ~5 GPH (bottom of the flow meter range, below the flow switch range).
• Noise performance results of first full test with all FEB's and hybrids powered on and biased.  Only a single COB was setup to run with CODA.  Overall, the noise on all FEB's that we took data with looked as expected.

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Physical FEB: 4t Serial: FebFpga: 5
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Hybrid 3: Looks fine. Noise ~51 ADC Counts, high noise on edge channels and noise rise on APV 0, hump in noise of APV 0
Hybrid 2: Looks fine. Noise ~52 ADC Counts, high noise on edge channels and noise rise on APV 0, hump in noise of APV 0
Hybrid 1: Looks fine. Noise ~52 ADC Counts, high noise on edge channels and noise rise on APV 0, hump in noise of APV 0
Hybrid 0: Looks fine. Noise ~51 ADC Counts, high noise on edge channels and noise rise on APV 0, hump in noise of APV 0
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Physical FEB: 6b Serial: FebFpga: 3
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Hybrid 3: Looks fine. Noise ~54 ADC Counts, high noise on edge channels and noise rise on APV 0
Hybrid 2: Looks fine. Noise ~50 ADC Counts, high noise on edge channels
Hybrid 1: Looks fine. Noise ~51 ADC Counts, high noise on edge channels
Hybrid 0: Looks fine. Noise ~50 ADC Counts, high noise on edge channels and noise rise on APV 0
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• Added the rest of the DPM's (dpm's 8-14)  and DTM 1 to the coda database.  Tried running but encountered several coda related problems along the way.

2015-02-13

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