ALM-Inline Manual V1.0
7
Copy rights ECOTRONS LLC http://www.ecotrons.com
Chapter 5 ALM-Inline operating instructions
5.1
ALM-Inline with 0-5v analog output
The aftermarket version of ALM-Inline comes with a 0-5v analog output (ANOUT) for the
main controller to read. 0-5v analog output is linear to the Lambda
、
O
2
% or AFR that ALM
measures from the exhaust gas.
Connector
Pin#
Name
Description
Min
Max
A
1
RH
wideband oxygen sensor input
—
—
2
UN
—
—
3
IA
—
—
4
IP
—
—
5
VM
—
—
6
VS
—
—
B
Red wire
+12V
+12V Power supply
—
—
Black thick wire GND-H
Ground (Heater circuit ground)
0V
0V
Black thin wire GND-R
Ground (Reference ground)
0V
0V
Blue wire
ANOUT Lambda linear analog output
0V
5V
5.1.1
Connect ALM-Inline to the main board with ANOUT
This analog output from ALM-Inline is linear to the actual Lambda/AFR/O2% measured.
By setting the lower point and upper points of voltage vs Lambda/AFR/O2% linear relation,
the scaling between the voltage and Lambda/AFR/O2% is determined.
The default setting is
0V~ Lambda 0.50
5V~ Lambda 2.00
Lambda = Volt * (2.00-0.50)/ (5-0) + 0.50, which is: Lambda = Volt * 0.30 + 0.50;
Volt ~ ANOUT voltage.
User can change this setting by using ALM GUI. The max setting is:
