> For the complete documentation index, see [llms.txt](https://mit-energy-hardware-bench.gitbook.io/ehb-mit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mit-energy-hardware-bench.gitbook.io/ehb-mit/documentation/quasar-ms/system-startup-and-tuning.md).

# System Startup, and Tuning

* ENSURE THE REGULATOR IS FULLY OPEN BEFORE PRESSURIZING THE CYLINDER 
* then slowly icnrease pressure until it reads... 
* Then how to adjust the Leak valve and tune the pressure controller 

**PID Tuning Process**

**Valve Tuning Process**

* RGA-in-the-loop valve tuning (SHOW A PICTURE OF THIS!!!)

**TEMPERATURE COMPENSATION of the GM50 !!! via the MKS GUI**

**Bake-out Procedure**

* pressure monitoring

**Leak Testing**

* ROR test 

**AUTOTUNING THE TEMPERATURE CONTROLLER**

<https://www.tempco.com/Tempco/Resources/User-Manuals/PCM-Manuals/InstructionsforModelPCM10001-4.pdf>&#x20;

Temp Solution:

* <https://www.mouser.com/ProductDetail/895-USBRS2321.8BT5.0>&#x20;
* <https://www.mouser.com/ProductDetail/485-3123>

```
@253PR5?;FF
```

RX TO TX AND TX TO RX&#x20;

* so make a color pin table for this!&#x20;
* CUT ENDS OF EXTRA CABLES TO AVOID SHORTING&#x20;
* INCLUDE STRAIN RELIEF&#x20;

It's not null modem it's straight through serial???&#x20;

| FTDI Cable        | Connector       |
| ----------------- | --------------- |
| Orange (FTDI TXD) | Pin 3 (946 RXD) |
| Yellow (FTDI RXD) | Pin 2 (946 TXD) |
| Black (GND)       | Pin 5 (GND)     |

<figure><img src="/files/bRdtQYhk85VZ8TD2RtUx" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/s0IQgxarvrDclAn0QQ5j" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/AFyBrXNuizxC2Ot8GlRC" alt=""><figcaption></figcaption></figure>

{% embed url="<https://www.idealvac.com/files/manuals/946-Manual.pdf?srsltid=AfmBOooltI76Gf7h_q0QOkP-5nqST8d3AgmAkfcrdxHuU52Ut1F2B1MH>" %}

INCLUDE FDTI DRIVER

<https://www.mouser.com/datasheet/3/35/1/DS_USB_RS232_CABLES.pdf>

yes

We used TERMITE FOR TESTING <https://www.compuphase.com/software_termite.htm>&#x20;


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