Figure 1 To start, first plug in power (white connector), then plug in power for control boards (black)

The Jungfrau startup procedure is as follows:

  1. Power on the large thermotek water chiller.  This chiller cools the detector cold-plate.   This chiller is connected to the network, and its controls can be accessed via the CXI home screen under Hutch Cameras ⇒ Jungfrau Chiller.  Set status from “Standby” to “Run” in order to start the chiller.  Typical flow is ~2.3L/min.  Temperature setpoint should be 15C.
    Check water chiller level occasionally (~every 2 weeks).
  2. Power on small thermotek water chiller.  This chiller cools the power supply.  This is locally controlled.  Hit the start button on the control touch panel on the front of the chiller.  Temperature setpoint should be 15C.  Check water chiller level occasionally (~every 2 weeks).
  3. Make sure the dry compressed air is flowing.  Set the flowmeter (next to the red power supply) to >20SCFH and <50SCFH.
  4. Disconnect the 19-pin circular connector coming out of the red power supply box from the patch panel.
  5. The red box is the power supply for the Jungfrau4M.  It contains a TDK-Lambda power supply as well as a PSI-designed control board.  The Lambda power supply needs to be turned on first, after which the control board needs to be powered.  The power cable with the white 3-pin plug at the red box is the Lambda power supply cable.  The other standard 120VAC power cable is the control board power cable.  
  6. You may need to reboot the JF4M Detector IOC in order for the Arduino and the power supply.
  7. On the CXI home screen, goto the JF4M Detector screen. 
    1. Make sure that the humidity is below 10%.
    2. Make sure that all interlocks are showing OK.  If not, try hitting the Clear button to clear any latched interlocks.  
    3. Make sure all channels are OFF, and that the voltage and current draw are both reading zero.  
  8. Re-connect the 19-pin circular connector back to the patch panel.
  9. Turn ON detector.  The voltage should read ~12V.  The initial current draw should be ~6.8A (this will fluctuate as the board FPGA boots up).  Wait ~20sec for the FPGA to boot up. 
    Once the detector is configured in the DAQ, the current draw will rise to >20A.  


Some things to note:

  • The lakeshore has just 2 thermocouple connected to it.  So the Lakeshore screen Inputs C and D are the only relevant values.  There is no PID temp control, there is no heater physically attached to any part of the Jungfrau 4M system.  


Troubleshooting:

  • If turning on the power correctly shows ~12V, but shows a small current draw (~0.4A), or if the detector screen shows "ERROR":

Power down the power supply.  There are two power cables connected to the red power supply.  Unplug both of them at the outlet (not at the power supply).
Plug back in the power supply chord first.   This is the one with the white 3-pronged connector on the power supply side.  Then plug in the controller power chord.  Once an orange light turns on on the controller, flip the controller switch up.  You should now see a green LED light up under the orange light.  

  • If the temperature/humidity stops updating and/or reads very bad values:

Restart the JF4M Detector IOC.  This usually reconnects the IOC to the Arduino (and therefore the environmental sensors). If this doesn't work, try power cycling the Arduino by disconnecting the USB cable from the hub on detector rack 50. <attach picture>







Figure 2 dry air for Jungfrau - 40psi

Figure 3 dry air for Jungfrau - on detector breadboard

Figure 4 Jungfrau patch panel

Figure 5 chiller for power supply – manual

Figure 6 Lakeshore for Jungfrau - remotely operated




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