History of MembersPage/PhatBob/DamosWidebandProblem
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2007-04-12 14:57:15 . . . . MembersPage/PhatBob [deleted old page]
2007-04-07 08:26:57 . . . . MembersPage/MarcellGal [RCal question. dump of WBO2 related LCD page]
2007-03-23 15:42:57 . . . . MembersPage/PhatBob [description of calibration problem]
2007-03-23 15:40:48 . . . . MembersPage/PhatBob [description of calibration problem]


Changes by last author:

Deleted:
Damo has an issue with his v3.3 (serial number 612)

When he checked the O2 reading to check that the calibration constant that I had given him from my test bench calibration of his sensor was correct, he found that the calibration value of D7 gave a O2% reading of 14.4 E7 gave a calibration value of 15.x and FF gives 16.x

He is using the suggested wbo2 settings, and has the correct wbo2_nernstdc_target and wbo2_pump_pw_zero values as defined from the Webshop delivery sheet.

The wiring appears to be correct and the battery voltage is good.

Does anyone have any suggestions for further tests or possible causes?

What is the resistance of WBO2 rcal resistor ? (measure the disconnected LSU4 sensor, between WBO2pin2 and WBO2pin6, usually 80..200 Ohm)

Snapshot of WBO2 related LCD page

* in terminal say mll, after mlp07 or so, the page that has Ri=.. near left top

** instead of mll, mdk01mdf01 enables continuous (1/sec) dump of LCD page

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wbo2_warmup_ramp=A0

wbo2_abs_limit=E4

wbo2_limit_maxt=A0

wbo2_fallback=B0

wbo2_retry_t=06

wbo2_ri_target=96

wbo2_nernstdc_target=85

wbo2_pump_pw_zero=67

wbo2_calibration=FF

wbo2_heater_pid_kp=46

wbo2_heater_pid_ki=10

wbo2_heater_pid_kd=1A

wbo2_heater_pid_ilimit=80

wbo2_pump_pid_kp=15

wbo2_pump_pid_ki=4E

wbo2_pump_pid_kd=00

wbo2_pump_pid_ilimit=84

wbo2_ri_confidence_scale=80