wideband fluctuations

[mads b (dk)]

Hi im nearly finished getting my old vems 3.1 up and running, but i have a problem with wideband fluctuations  (i think?)

when i use wideband freeair calibration it fluctuat from 20.7 to 21.1 is this ok ??

Firmware 1.2.11
pump zero PW 102 = 0.030volt between wideband connector pin 5 and 6
pump PID nernst DC target 136 = 0.453volt between wideband connetor pin 5 and 1 (sensor started and hot in calibration mode)
RI target 180

short video
https://www.dropbox.com/s/8ea8u5ec8uyppsk/2014-06-05%2011.13.14.mp4

Thanks Mads

[VEMS]

Hello Mads b (dk),

If you have applied the default wideband settings in "Base Setup->Wideband settings" then applied default heater-pid, pump-pid and warmup.
And you get slightly wavering wbo2 o2 reading during calibration that is no problem, it helps to wave the sensor around a bit to make sure its gets fresh air stream in the sensor element.

Best regards, Dave

[mads b (dk)]

Thanks :-)