GenBoard/Manual/WideBandDualWboHardware (2020-04-06 09:04:30)

If a certain VEMS ECU is ordered with "Dual WBO2 requested" (option, or order comment), this should NOT be needed.

Provided for reference (during some debug/diagnostics, or if converting an old device ordered without Dual WBO2).


2nd WBO2 hardware channel on v3.x. Verification of this doc is in progress, use GenBoard/VerThree/Schematic for now.

dual_wbo2_check.png

Problem: When I bench test/calibrate:

I notice the second heater stops heating when the pump- to nernst goes positive (when it normally goes to 450mV).

Thoughts on this? I'm using 2 resistors ( pump- 100 Ohm nernst 100 Ohm pump+), as outlined in the Hardware Test page.

I'll document the process similar to GenBoard/Manual/WideBandHardwareTest once I understand what I'm missing with this dual wideband testing.

First we review your actual configuration