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--- internal:proddocs:3281 [2022/02/22 11:13] – chrissy
+++ internal:proddocs:3281 [2023/07/12 14:33] (current) – external edit 127.0.0.1
@@ Line 4: / Line 4: @@
 </note>
-  *   - Tools:
+**  *   - Tools:
   * -	5.5mm A/F open end spanner
   * -	5.5mm A/F Socket
@@ Line 11: / Line 11: @@
   * -	Soldering Iron
   * -	Wiha TorqueVario
+**
 **Method:**
@@ Line 44: / Line 44: @@
 {{:internal:proddocs:3281.5.png?600|}}
+**The probes are now connected to the PCB using an open end spanner to prevent the M3 Nut from turning on the underside of the board (2 places) whilst tightening the corresponding nut on the top of the Printed Circuit Board**.
+{{:internal:proddocs:3281.6.png?600|}}{{:internal:proddocs:3281.7.png?600|}}
+<note>**The M3 Nuts on the top of the board also require a shake proof washer 200508 underneath them prior to tightening securely to 1.0 Nm**</note>
+**The PCB can now be eased into the body and screwed in position.**
+**Using M3 x 6 pan head screw 200720 with 200508 shake proof washer, screw the Printed Circuit Board assembly securely to
+ the Body.**
+{{:internal:proddocs:3281.8.png?600|}}
+**The sender is now ready for programming.**
+<note>**Connect the Sender head to the NMEA cable and power on the device
+Connect the ST/LINK v2 to the programming header. You will need the PCB to be loose from the sender head to be able to access it, as it is on the under-side of the board.
+Open STM32CubeProgrammer
+Click the Icon on the left hand side:**** 5) Click the connect button.**</note>
+**Browse to the folder S:\Code\Production\3281 water Level Sender\Program AFTER Rev J\
+Then select 3281bootloader.bin**
+{{:internal:proddocs:3281...jpg?600|}}{{:internal:proddocs:img_20220505_150521.jpg?600|}}
+**Ensure the check boxes are as shown below and then select “Start Programming”**
+{{:internal:proddocs:img_20220506_074850.jpg?600|}}
+<note important>**Now, the blue LED should be on solid.
+Open Monex 3.12, Select the Programming tab, and then press “3281”**
+</note>
+{{:internal:proddocs:img_20220505_150709.jpg?600|}}
+**Press the re-program button**
+{{:internal:proddocs:3271..6.png?600|}}
+**Navigate to S:\Code\Production\3271 Fuel Level Sender\Program AFTER Rev J and select 3271-v5.bin, then press “open”.
+**
+**Browse to the folder S:\Code\Production\3281 water Level Sender\Program AFTER Rev J\
+Then select 3281bootloader.bin**
+**The tool will now indicate it is programming, it will then show a CRC and PASS, and finally will reboot to application code.**
+{{:internal:proddocs:3271..8.png?600|}}
+<note important>**Before potting, allow the senders to acclimatise in the potting room for a couple of hours. This will reduce the chance of any condensation on the inner sender body.**</note>
+<note warning>** Suitable PPE should be worn when using the two-part Epoxy potting compound.**</note>
+====== Potting procedure ======
+**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.**
+<note>**REMEMBER TO TURN THE WATER BATH OFF ONCE YOU HAVE FINISHED WITH IT !**</note>
+<note tip>**To avoid air gaps under the PCB and around the wiring, the sender must be at a slight angle – a cotton bud under one side is enough.
+The compound can then be slowly poured into the lower side, as this allows the potting to fill up level with the board and prevents air pockets.
+Once all air has been removed under the board, you should see a ring of potting all around the outside of the PCB**.</note>
+**At this point, the cotton buds can be removed so the sender is now flat and the sender can be topped up.**
+.{{:internal:proddocs:3281.11.png?600|}}
+The Potting must now be left overnight to
+Cure and harden.
+<note important>**No epoxy to be visible on the switch and overspill is to be wiped away. Epoxy must be flush to metal surface to avoid creating a recess for any fluid to accumulate when in use.**</note>
+{{:internal:proddocs:3281.12.png?600|}}
+**Once the Potting has set, the Serial No Label can be applied. Position symmetrically as shown in pic below.
+The label must show the:
+Part Number
+Serial Number
+Hardware and software level**
+{{:internal:proddocs:3281.13.png?600|}}
+**You are now ready to connect the unit to the Monex system and assign the unit the serial number from the sticker and to do a final test after assembly to make sure the unit is still fully functioning and has not been damaged during the build procedure.
+Click SET SERIAL – input the serial number from the label
+Click GET PRODUCT INFO to confirm Serial Number and software level**
+**Calibrate to Level Mode see instructions below**
+{{:internal:proddocs:3281.15.png?600|}}
+**Calibrating the Level Sender to empty, see information below.**
+{{:internal:proddocs:3281.16.png|}}
+====== Packaging. ======
+**The Sender is now ready for packing. The user instructions are packed into Poly Bag 200332 along with 1 off Cap
+Assy 200310 Place sender in tube with Instructions
+Add  Label  to Packaging Tube  positioned as shown
+Add product indicator label to cap – highlight boxes with product information.
+(To indicate product – Length and settings if required)
+Add 1x 30g tube of silicone sealant 203122 to the contents, even if we have pre cut the length.**
+{{:internal:proddocs:img_20220228_104608.jpg?600|}}{{:internal:proddocs:img_20220228_104708.jpg?600|}}
+**Select product label required and place in position on tube.**
+{{:internal:proddocs:img_20220228_104718.jpg?600|}}
+ --- //[[chrissy@osukl.com|Christine Walsh]] 28/02/2022 11:00//created