3410 Build Instruction

The 3410 PCB assembly contains components that are sensitive to electrostatic discharge (ESD) – please make sure you are wearing your wrist strap when handling.

Programming

Connect PCB and set voltage to 12.30 then Select Atmel studio, see pics below

Select device programming and apply see pic below

Select required fuses (see pics below)

Ensure LOW.CKDIV8 is unticked see pic below.

Ensure HIGH.BOOTRST is ticked see pic below

Select the last option on the list see pic below

Select Memories and program, see pic below

To ensure the PCB is programmed correctly, select monex and get Prodinfo, see pic below

Test procedure

Test equipment required

500 Amp shunt/ 3410 test fixture, DC current transformer, Monex

You Will require 2 NMEA connections

With the power off, Fit 3410 in place, wire unit as per order below, Plug in NMEA connector, Plug in power wires black (1) and red (2). (This is power from the NMEA, not the Power Supply, use grey cable) Please see pics below.

Connect red (8) and black (7) shunt wires see pics below.

Power up Try Setting Power Supply to 8.6v. The voltage will fluctuate slightly

Check Voltage of NMEA power supply and record. (Right hand terminals of the power supply on the test bench (eg. 12.15V see pics below below))

Set rotary switch to “B” Hold button down for 5 seconds until the blue LED lights for 2 seconds Set rotary switch to “C” Hold button down for 5 seconds until the blue LED lights for 2 seconds Set rotary switch to “0” Push lever forward all the way see pic below.

Now, we need to match up values from the DC Monitor tab in Monex Check the voltage is the same as recorded in the previous procedure, see pic below.

For this, the current should MATCH what's on the power supply. If the screen shows 50, PSU should also say 50 +/-3

For the 3412 test, Disconnect the red (8) and black(7), shunt wires Wire up to 3412, passing blue cable through transformer 3 times. Black (3) White (5) Green (4) Red (6) see pic below

Toggle power of PSU in front of you. (Turn off and on again). see pic below

For this, the Current on screen should be about 3.2 times the current on the PSU, +/-5 . For example 160 on screen - 50 on PSU, 130 on screen - 40 on PSU etc.

End of test

Warning

Add x6 pcs 203017 slim washers to connector PL1 before placing it inside black plastic housing.

Fit PCB to case – remove plastic grommet from PL1

Fit 203017 shim washer between PL1 nut and case.

Fit base plate – ensure all holes line up for fixings

The base plate is to be glued in place add pics here

Packaging add pics