ALM-BR4-4.3 Manual
2
Copyrights ECOTRONS LLC www.ecotrons.com
ALM-Board Technical Specifications
Power supply
◆
Input voltage range
DC12V (typical value), DC 10V ~15V
◆
Input current
60mA typical for the board; the heater current
directly from 12V supply
Sensors
◆
Standard configuration
LSU 4.9
◆
Also support
LSU ADV (software configuration needed)
◆
Number of Sensors
One
◆
Free air calibration
No need
Accuracy
◆
Range of measurement
λ = 0.65 ~ ∞
◆
Measurement accuracy
±0.008 @ λ=1.00
±0.01 @ λ=0.80
±0.05 @ λ=1.70
◆
Air/Fuel Ratio
Fuel dependent (see lambda range and accuracy)
◆
Range of O
2
%
-21% ~ 21%
Heater
◆
Control
Built-in PID control with CJ125
◆
Current
Typical 1A; Peak 3.5A
◆
Heater return (H-)
Separate wire from Ground
Output
◆
Analog accuracy
±0.005V error with a 10-bit DAC chip
Communications
◆
RS485 customer protocol
Main Processor
◆
CPU
Freescale MC9S12P128 16-bit micro-processor
(Automotive grade)
◆
Frequency
32MHz
◆
Memory
128k Flash, 6k RAM, 4k Data
Special features
◆
On-Board-Diagnosis and error report
◆
Self-learning of part-to-part variations, aging effect
◆
Working with different types of fuels (gasoline, diesel, E85, etc)
General
◆
Temperature range
-40
o
C ~ 85
o
C
◆
Dimensions
70.5mm*32mm*28mm