v3.3_u010262 mainboard home-assembled
Second Wbo2 not worked.
Installed Resistors:
- R28 -100k
- R29 -510ohm
- R137 -10k
- R140 -10k
and Q14 FET
Pin out:
- EC18/1 WBO2_2 Nerst
- EC18/7 WBO2_1-2 Pump-
- EC18/8 WBO2_2 Pump+
- EC18/9 WBO2_1 Pump+
- EC18/13 WBO2_1 Nerst
- EC18/17 WBO2_2 Heater
- EC18/18 WBO2_1 Heater
Procedure to calibrate or recalibrate your WBO2 controller built-in to VEMS V3
- Connect pump(-) and nernst with 100 Ohm
- connect nernst and pump(+) with 100Ohm
- Connect a LED
Verify Pump-
My board measure 4.05V
Measure Pump+ and Adjust Pump-pw-zero
- Measure the voltage between pump(-) and pump(+)
Verify Heater
LED lighting.
Nernst-DC target
Adjustable 450mV
config and log
http://fileposta.hu/richlet/fd?id=42D0F6F7895c5a7f2aEaDb994c92B773001e801d969f2442