Specification :

Model: Four GAS Description
Autochek Model 4/ 5 is a portable automobile exhaust gas analyzer that uses single beam, non dispersive infrared( NDIR) determine CO, CO2 and HC concentration, O2 and NOx are detected by electro-chemical sensors.
Autocheck 4/ 5 also calculates LAMBDA and AFR ( Air Fuel Ratio) and exceeds the performance requirements of ASM/ BAR 97 and OIML Class 1& 0.
The Korean government Approved No.OEC-Lamda-2000-2, Patent pending

Specifications
Autocheck 4/ 5 meet BAR97 and OIML Class 1& 0 performance requirement.
Heavy duty and high accuracy analyzer.
Read continuous measurement either in service garage or in vehicle under load.
Complete stand alone unit, no additional equipment required for operation.
Large LCD display with backlight and touch-keypad operation.
Automatic zero calibration and semi automatic span calibration.
Rugged aluminum case.
Self -diagnostic.
Data management ( save, edit, delete) .
Maximum accuracy, high performance and operational stability promoted by microprocessor control and automatic programs.
Communication with personal computer ( RS-232) .
Internal thermal printer( option) .
Engine temperature & RPM check kit( option) .
NOx sensor( option) , PC software( option) .
Sample gas cooler for long lasting & high RPM testing( option) .

Range
HC: 0~ 30, 000ppm( hexane)
0~ 60, 000ppm( propane)
CO: 0~ 15%
CO2: 0~ 20.00%
O2: 0~ 25%
CO2 : 0~ 20.00%
NOx: 0~ 5, 000ppm
Lambda: 0.5~ 3.0
AFR: 5~ 25

Accuracy
HC, CO, CO2, O2 : 3% rel
Nox : 4% rel

Response time
HC, CO, CO2: less than 8 seconds
O2, NOx: less than 12 seconds

Warm-up time
Less than 20 seconds

Operating environment
Temperature: 0~ 50° C
Humidity: Up to 95% ( non-condensing) Altitude : -300~ 2, 500m( -1, 000~ 8, 000ft)
Power: 90~ 264VAC, 43~ 63Hz or 12VDC
Warranty: 1 year