Differences

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--- internal:proddocs:3271 [2022/04/12 08:31] – chrissy
+++ internal:proddocs:3271 [2025/08/29 10:54] (current) – david
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 ====== 3271 Build Instructions ======
 <note warning>**The 3271 PCB assembly contains components that are sensitive to electrostatic discharge (ESD) – please make sure you are wearing your wrist strap when handling.**</note>
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 <note>For Williams 3271-200 mm add two spacers, one at the top and one at the bottom</note>
-**Assemble the Insulator mouldings to the Probe. Check the un-threaded end of the probe for burrs and de-burr if necessary. Slide 200622 Insulators onto the Probe, spacing them approximately 200 mm apart.**
+**Assemble the Insulator mouldings to the Probe. Check the un-threaded end of the probe for burrs and de-burr if necessary. Slide 200622 Insulators onto the Probe, spacing them approximately 200 mm apart.
+**
+<note important>**The outer tube length for Williams is 198mm, the inner rod length is 214mm with CTS 081.
+**</note>
 <note important>Select tightly fitting spacers only – this is critical to prevent them sliding when fully assembled.</note>
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 **  -Turn on PSU power and plug in the sender.**
-  - **Open monex 3.12**
+  - **Open Monex 3.12**
   - **Holding the cable, do an E cal**
   -** Do an F cal, this will change on the INST**
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+{{:internal:proddocs:3271-13.png|}} {{:internal:proddocs:3271d.jpg?400|}}
 **To calibrate sender to full, turn rotary switch to the ‘F’ position as indicated in the diagram.
-The sender must be dipped into the tube of fuel to where, the fuel must reach the bottom of the threaded part of the sender body – ensure that the tube has sufficient fuel to reach this level.
+The sender must be dipped into the tube of fuel to where, the fuel must reach the bottom of the threaded part of the sender body – ensure that the tube has sufficient fuel to reach this level. Keep clicking the Get Cal button until the Current measured value stops changing. This is a few seconds on a short sender, but could be up to a minute on a 2metre sender. When the value has stopped changing, then calibrate full at the required level. Check that the reading on the big red table goes down very slightly as the sender is raised. DO NOT RESET THE EMPTY, EVEN IF IT READS 2%
 Now as for the empty calibration. With a magnet locate the re-calibration place on the top of the unit labelled MAGNET and you will see the blue led remain lit for 2.5 seconds (you can repeat this as many times as you like until you are happy that you have set the FULL position).
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 This is checked with the GET CAL box which should display the FULL values.**
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+<note important>**BEFORE PACKING MAKE SURE THERE IS NO FUEL LEFT INSIDE THE SENDER ROD, AS THIS WILL CAUSE THE PACKAGING TO BE FLOODED WITH DIESEL DURING TRANSIT**</note>