Oceanic Docs

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====== 3125 Build Instructions ======
<note warning>The 3125 PCB assembly contains components that are sensitive to electrostatic discharge (ESD) – please make sure you are wearing your wrist strap when handling. </note>

**Tools: required**
  *  ST-LINK V2		
  *  Tag Connect ST-LINK adaptor   	
  *  Small flat head screwdriver
  * Powered NMEA cable

====== Programming Instructions ======

  * Connect the ST-LINK to the USB port of your computer
  * Open STM32CubeProgrammer
  * Connect the 3125 PCB to the NMEA cable. Ensure power is ON.
  * Connect the Tag Connect Cable to the 3125 PCB and the ST-LINK programmer.
  * Select the green 'Connect' Button

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{{ :internal:proddocs:3125-1.png?400 |}}
  * Select the programming tab
{{ :internal:proddocs:3125-2.png?400 |}}
  * Select Browse, and open the bootloader BIN file from S:\Code\Production\3125 Tank Sender Adaptor\3125 Rev H - 2.1.0\Bootloader - Program this first
{{ :internal:proddocs:3125-3.png?400 |}<note important>
Ensure verify programming and run programming boxes are ticked before proceeding</note>
  * Press 'Start Programming'
  * Log should read as follows; If it does not, then program the device again.
{{ :internal:proddocs:3125-4.png?400 |}}
  * You can now press disconnect in the top right and remove the TAG CONNECT cable from the board.
  * Open Monex. MINIMUM MONEX VERSION is 3.10. If you are on a lower version you must update this from S:/Code/Published PC Programs/Monex3
  * Press 'Get Prod Info' it should read Model ID: OCEANIC BOOTLOADER 3125-L4
  * Go to the volumetric mode tab and press the reprogram button in the bottom right
{{ :internal:proddocs:3125-5.png?400 |}}
  * Press reprogram on the dialog that has just popped up
  * Navigate to S:\Code\Production\3125 Tank Sender Adaptor\3125 Rev H - 2.1.0\Main Program - Program this with Monex and select the 3125-2.1.0.bin software and then press Open
  * Device will program, CRC will say 'PASS' and then it will read 'Re-booting to application code' You can now close the dialog
  * Proceed to testing.
<note tip>If the blue light fails switch PSV off and back on again</note>


====== Test Procedure ======
{{:internal:proddocs:3125.1.png?600|}}
Select Monex 3.10
Include Rotary Switch testing (Right switch for all device instances 0-15 and left switch for each Fuel Type, and Position 8+ in US mode.)


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After flashing the software the unit is tested to confirm the unit functions correctly. Connect the leads as per image above. Tote – this image is currently set up for the 50% check

 Check FULL, HALF FULL and EMPTY. These readings are shown on the Bar Graph on screen. This check is also conducted after the potting procedure to ensure functionality.

QC Check before potting, check the colour of the LED is blue.

<note important>
Calibrate the device by setting left Hex switch = 0.
Then set right Hex switch to F for Full, and E for Empty calibration.
Using the resistance box set the resistance to 180 Ohms for Full Cal, and 0 Ohms for Empty Cal, each time using a magnet on the Reed switch to apply the calibration.

To test the calibration, set Resistance box top 90Ohms = 50%, 180Ohms = 100%, 0Ohms = 0%.
</note>


====== Potting Procedure ======
<note important>
Before potting ensure PCB is flat and level to the casing.</note>

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<note warning>The bags of Epoxy resin are kept in the potting room - suitable PPE should be worn when using the two-part Epoxy potting compound e.g. rubber gloves, overalls</note>.
<note>1 x bag is sufficient to fill 6 units.</note>

Warm the compound in the water bath (this should be set to 40 degrees), this takes approximately 10 minutes for the bath to come up to temperature and 5 minutes to warm a bag of compound. Do not warm above this temperature as it will greatly reduce the pot life of the compound. Once warm, work the black potting BEFORE removing the clip and rail – this will help remove any lumps caused by the fillers that have settled over time. Then, place back into the bath for 2 minutes. Remove the clip and rail, and mix thoroughly for approximately 2 minutes.

REMEMBER TO TURN THE WATER BATH OFF ONCE YOU HAVE FINISHED WITH IT !

.  Holding the bag vertically snip about 10 mm off the top corner at 45 degrees with a pair of scissors. Now drizzle the Epoxy over the circuit board to a level, taking care not to get any on the LED or Dial face. Allow to harden overnight. This will allow the mixture to settle.

<note warning> If any bubbles appear, these can be dispersed by gently, for a few seconds using a hot air gun on the lowest setting over the surface.</note> 

The Potting must now be left for 24 hours to cure and harden.

After the units have been removed from the jig, remove any over spill from the jig so it is clean for the next use.

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Once the epoxy potting has cured, the serial number label can be adhered to the top of the product as shown. Position carefully as the two 

Serial Number
Hardware and Software level.
Connect to Monex and assign serial number to the units using the set serial function.

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====== Packaging ======
Use RPT108 and bubble bag, make to to include the 3829 cable and instruction book.
<note important>one pic is for picture is for the Honda</note>
Standard will be the same label size only box label will be our standard product and sleeve.


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 --- //[[chrissy@osukl.com|Christine Walsh]] 4/11/2021 08:16// updated