KR-A5 diesel cetane number tester meets the relevant requirements of American Society for Testing Materials Standards and the relevant national standards, and is used for the quantitative determination of the cetane number of compression ignition engine diesel. The cetane number measurement range is 0~100 and the typical cetane number measurement range is 30 ~65.

The test results of this cetane rating unit can be displayed and saved automatically and the test report can be printed. The product is designed, manufactured and tested according to the following standards:
GB/T 386-2010 “Determination of Diesel Cetane Number”
ASTM D613-08 “Determination of Diesel Cetane Number”

Main Features:
– Fuel ow is adjusted and controlled by the
photoelectric automatic measuring system and
computer to avoid articial error.
– With the real-time display work curve, to timely
display the instrument ring time point.
– The injection advanced angle is controlled by the
computer automatically; with the oil injection
amount accurately controlled by the imported
electric pump; the imported nozzle is used.
– Through the computer touch screen, the test results
can be obtained directly without manual table
lookup.
– Intake conguration: high-capacity air purier.
– Exhaust conguration: the instrument is equipped
with a muer, to eectively eliminate the noise
generated in the operation process.
– Lubrication system: with two-stage ltration and
circulation cooling function and with the auxiliary
lubricant preheat function.
– Oil inlet system: with three parallel oil storage tanks
and one ow detection pipe.
– Safety system: with the emergency stop function, to
achieve the emergency protection at the abnormal
state.
– With data collection, auto calculation, auto control,
auto table look-up, print and prompt functions.
– Real-time monitoring of the cooling water
temperature, intake temperature, nozzle temperature, oil temperature, fuel temperature and motor
power.
– With engine running pressure negative pressure
sensor, for real-time display.
– With engine power indicator and digital screen
display.
– Auto recording of the cumulative time of startup
and test.

Main Technical Parameters:

– Test range: 0~100 cetane number (Typical test range: 30~65)
– Cast iron cylinder bore: 82.55mm (3.250in)
– Cast iron piston stroke: 114.3mm (4.5in)
– Cylinder capacity: 0.61L (37.33in3)
– CFR standard crankcase; ve gears with dual balance module;
right-mounted engine; front turning system
– The main machinery components such as cylinder cover, cylinder
body, piston, compression ratio plug and nozzle components are
interchanged with the components of the imported instrument.
– Compression ratio adjustment range: 8:1~36:1; with the compression ratio adjusted by an external handwheel
– Engine speed: 900±9 r/min
– Injection advanced angle: BTDC 13º
– Injector open pressure is 10.30±0.34Mpa
– Injector ow: 13.0±0.2ml/min
– Injector cooling temperature: 38±3℃
– Intake and exhaust valve clearance (at cold state):
intake valve: 0.075mm;
Exhaust valve: 0.33mm
– Intake and exhaust valve clearance (at hot state):
intake valve: 0.2±0.025mm;
Exhaust valve: 0.2±0.025mm
– Lubricating oil pressure: 172kPa ~ 207kPa under the standard
operating conditions
– Lubricating oil temperature: 57±8℃
– Cylinder jacket coolant temperature: 100±2℃
– Inhale air temperature: 66±0.5℃
– Basic compression pressure: 3275±138kPa
– Crankcase negative pressure: 0.25~1.5Kpa
– The fuel tank and the ow measuring tube are above 635±25m
than the center line of the inlet of the fuel injection pump
– High-power cooling water circulating machine, with the water
tank capacity of ≥60L; water pressure: 0.2~0.4Mpa; working
water temperature: 15~25℃
– Available environment temperature: 15~35℃
– Available environment humidity: 20-80% (Non-condensation)
– Power supply: 380V, 50Hz; with the power supply grounded to
the base and with good grounding
– Power supply uses three-phase and ve-wire system; that is,
three live wires + zero wire + ground wire
– Machine power: 12KW; accessories power: 7KW
– Instrument size: 1550W x 900D x 1720H (mm)
– Machine weight: 1200kg

Model: KR-A

This diesel gasoline MON RON analyzer is in line with American Society for Testing Materials Standards: ASTM D 2700 (Motor Method) and ASTM D 2699 (Research Method). In line with the national “Determination of Gasoline Octane Number”: GB/T 503-2016 (Motor Method) and GB/T 5487-2015 (Research Method) Used for determining the octane number of vehicle gasoline and ignition aviation engine gasoline. The instrument host uses a CRF standard single-cylinder four-stroke motor with the continuous variable compression ratio, with an industrial control computer, a Windows operating system, high-precision measurement and control components and other many peripheral devices to accurately and effectively perform testing. The tester has many auxiliary functions such as auto display, saving and printing of test report.

Instrument Features

-CFR standard engine with the professionally mechanical processing.

-CFR standard integral cylinder; integral cooling jacket; inblock casted cylinder body and cylinder cover; they can be interchanged with the imported instrument components.

– CFR standard piston stroke is 114.3mm, with high resolution to guarantee stable high compression ratio test.

– CFR standard large linage mechanism, to ensure high compression ratio stroke to effectively ensure the service life of more than ten years of the mechanical parts.

– With the standard CFR crankcase design; five gears with dual balance module and high-capacity oil lubrication system; good thermal stability to guarantee a long-term smooth operation.

– With one machine for two purposes; the combined pulley is used to quickly switch over the Research. Method and the Motor Method

– A new sized mixing heater; switching between Research Method and Motor Method without dismantlement.

– With the accurate compression ratio method test; built-in work curve to get the test results conveniently and quickly.

– High-precision sensor and integrated control module to monitor the working conditions of the instrument in real time, with the abnormity alarm function.

– The operating software is based on WIN7 system; with the screen to display the knock meter and knock signal.

– Built-in atmosphere pressure automatic compensation module.

– With the compression ratio auto adjustment and limit safety protection.

– With a simple linkage mechanism and with an auto display of the ignition angle in real time.

– The vertical nozzle and fourth oil cup carburetor have refrigeration function to guarantee the light component oil test.

– The carburetor has four independent horizontal spray pipes and one-way vertical spray pipes to accurately control the air-fuel ratio.

– With the auto level search function, simply the maximum knock signal adjustment.

– With a high-power dual-cycle air constant-temperature dryer, to effective support the intake air amount required by the engine with a large cylinder bore

– A professional high-power cooling water circulation machine, with the water tank capacity ≥60L for environmental protection and test.

– A laser displacement sensor, without delay for adjustment; with the limit safety protection function.

– A high-precision knock sensor, with millisecond response.

– With two-stage oil filtering and cooling function, to effectively cool down oil and to ensure a long-time smooth operation.

– With an oil preheat function as the standard configuration, shortening the warmup time.

– With the stainless steel cooling water tower, to avoid corrosion to the internal circulation water channel and to improve the cylinder liner cooling effect.

– With the phase protection device and emergency stop button, to achieve emergency protection in case of emergency.

– Large-capacity data memory and remote failure diagnosis.

– With safety alarm and maintenance prompt – Cumulative time recording of startup and test.

Technical Parameters of octane and cetane tester:

– Octane number test range: 40~120

– CFR standard cast iron integral cooling jacket; inblock casted cylinder body and cylinder cover.

– Cast iron cylinder bore: 82.55mm (3.250in)

– Cast iron piston stroke: 114.3mm (4.5in)

– Cylinder capacity: 0.61L (37.33in3)

– CFR standard crankcase; five gears with dual balance module; right-mounted engine; front turning system – The main machinery components such as integral cylinder, holder, piston and carburetor parts are interchanged with the components of the imported instrument.

– Compression ratio adjustment range: 4:1~8:1

– Engine speed: Motor Method (900±8) r/min

Research Method (600±6) r/min

– Valve clearance: intake valve: 0.20mm;

exhaust valve: 0.20±0.025mm

– Spark plug clearance: 0.51±0.13mm

– Lubricant pressure: 172~207Kpa

– Lubricant temperature: 57±8℃

– Cylinder jacket coolant temperature: 100±1.5℃

– Mixed gas temperature (Motor Method): 149±1℃

– Intake temperature (Motor Method): 38±2.8℃

– Intake temperature (Research Method): 52±1℃ (under the standard atmospheric pressure), corrected with the atmospheric pressure

– Ignition advanced angle: Motor Method: ε5.0 (26±1.5℃); adjusted by the computer automatically Research Method: (13º), fixed

– High-power dual-cycle refrigeration ice tower with the temperature controlled 2 to 4℃, to effectively support air intake

– High-power cooling water circulator, with the water tank capacity ≥60L; water pressure: 0.2~0.4Mpa; Working water temperature: 15~25℃

– Power supply: AC380V±10%, 50Hz, AC200V±10%, 50Hz

– Machine power: 12kW Accessories power: 7kW

– Instrument size: 1700Wx900Dx1400H (mm)

– Machine weight: 1200kg

Model: KR-A+

The new generation gasoline octane number tester adopts a new appearance design, with “One-Key” used to perform the test automatically and with the maximum knock liquid level searched automatically and accurately without manual operation. The instrument host uses a standard CFR single-cylinder four-stroke engine with a continuous variable compression ratio, to perform the test accurately and eectively by the combination of the industrial control computer, Windows operating system, high-precision measurement and control elements and enrich peripheraldevices, having the auto display, saving and printing test report functions. The product is designed, manufactured and tested according to the
following standards:
ASTM D2700 (Motor Method) GB/T 503-2016 “Determination of Gasoline Octane Number (Motor Method)”
ASTM D2699-08 (Research Method) GB/T 5487-2015 “Determination of Gasoline Octane Number (Research Method)”

Instrument Features of Octane Tester