SMT8_4 TECHNICAL MANUAL

Perfect Power Online Manuals.

 

Support for your SMT8 V4 Unit.

WIDE BAND AFR DISPLAY

The SMT8_4 has ONE wide band display channel. Thus the actual engine operating AFR of the engine can be monitored. This can be done while the same channel is modified (see above). One extra wire must be connected.

 

 

ASSOCIATED PINS

 

WAFR1IN Pin 7 of 16
WRCAL Pin 6 of 16

 

 

WIDE BAND DISPLAY CALIBRATION

 

The purpose of the calibration is to remove the electronic offset error. This can be performed in two ways:

Comparison with OBD reader. Adjust Wide band display zero until reading confirms with OBD display
Short both wires, and adjust wide band display zero until reading is 14.7