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