octane meter

Octane Meter – An octane analyzer is a laboratory equipment used to measure octane in gasoline. The octane analyzer complies with ASTM D2699 and ASTM D2700 standards. Octane Analyzer is available as a portable laboratory method.

How is Octane Number Determined?

The octane number of liquid fuels is measured by the comparative method of the fuel’s resistance to knocking, based on the mixture of Iso-octane and n-Heptane fuels, which are called reference fuels.

Since the engine design is shaped according to the characteristics of the fuel, the octane number measurements of the fuel to be used are carried out under conditions determined by international standards.

Reference fuels to be used in this context were accepted as “n-Heptane” and “Iso-octane” and their octane numbers were specified as 0 and 100, respectively (ASTM D2699, D2700). Octane measurement experiments are carried out with variable volumetric mixtures of these fuels. For example, the knock resistance of gasoline called 97 octane corresponds to a mixture of 97% Iso-octane and 3% n-Heptane by volume (Yozgatlıgil, A., 2018).

The determination of the octane number is standardized by the Deutsches Institut für Normung (DIN) 51756 norm.

Only specially designed engines such as Cooperative Fuel Research (CFR) and Badische Aniline und Soda Fabrik (BASF) have been found suitable for the application of these methods. These engines are single-cylinder, four-stroke, spark-ignition engines with variable compression ratio and cooled by the thermosiphon principle.

In the ASTM D2699 standard, two types of octane measurements are defined as RON (Research Octane Number) and MON (Engine Octane Number).

While the softer operating conditions of the engine are simulated in the RON method, the harsher operating conditions are analyzed in the MON method.

In other words, while RON octane number measurement fits the fuel’s knocking condition during acceleration, the octane number calculated by the MON method is based on the knock under overload, and thus finds a more realistic and practical octane value (Yozgatlıgil, A. , 2018).

In the MON method, the fuel-air mixture is heated behind the carburetor, and in RON, the air is heated before the carburetor. The octane number found by the MON method for the same fuel is lower than the value obtained by the RON method.

For this reason, in some countries such as the USA, Brazil and Canada, the octane number indicated at the fuel stations is given as the average of the MON and RON numbers. This average figure is also known as the Anti-Knock Index (AKI). In Turkey and in other European countries in general, the octane number is expressed in RON.

type of Octane Meter

• Gasoline Octane Number / Diesel Cetane Number Analyzer : Portable Octane Number / Cetane Number Analyzer can be widely used for aviation gasoline, vehicle gasoline, mixed (blended) gasoline, ethanol gasoline and other octane determination and vehicle diesel cetane number determination….

Octane meter / Cetane Analyzer Part:

The principle of determining the octane number of vehicle gasoline is based on internationally accepted ASTM-CFR test machine results. It is tested under harsh test conditions using a standard engine with variable compression ratio and is measured against a standard reference fuel. Octane (or Cetane) Numbers determine the total dielectric constant of the oil sample.

It is based on a theoretical and rigorous mathematical model for regression, advanced electronic measurement techniques as tools, and CFR test machine measurement results as standard.

The targeted regression method makes a breakthrough in the measurement of non-physical variables, ensuring the accuracy of the measurement; this is equivalent to passing the CFR testing machine measurement results to our instrument in accordance with the international standard. The instrument consists of microcomputer, sensor, RGB touch screen and printer.

Parameters:

1st of December

(1) Aviation gasoline: 86.0 ～ 109.0 / MON

(2) Vehicle gasoline:

GB (Chinese Standardized): 65.0 ～ 110.0 / RON

GB (D): 70.0 ～ 115.0 / RON

Mixed gasoline: 75.0 ～ 120.0 / RON

Heterogeneous gasoline: 85.0 ~ 120.0 / RON

Light gasoline: 50.0 ～ 85.0 / MON

Aromatic gasoline: 90.0 ～ 120.0 / RON

Ethanol gasoline: E93: 92.0 ～ 95.0 / RON; E97: 95.0 ～ 99.0 / RON

Evaluation (Any

uniform list above and use optimal): 60.0 ～ 120.0 / RON

(3) Vehicle Diesel:

25 ～ 75 / CN (Cetane Number)

20 ～ 80 / CI (Cetane Index)

2. Accuracy

Aviation gasoline: ≤ ± 1.5 / MON

Vehicle gasoline: ≤ ± 1.5 / RON; ≤ ± 1.5 / MONTH

Vehicle diesel: ≤ ± 2.5 / CN; ≤ ± 2.5 / CI

Retest of Regression Sample: ≤ ± 0.5 / RON; ≤ ± 0.5 / MONTH

Test Sample Retest: ≤ ± 1.5 / RON; ≤ ± 1.5 / MONTH

Calibration Accuracy: ≤ ± 0.2 / RON

3. Certainty (95% confidence level)

Reappearance: ≤ ± 0.5 / RON

Repeatability: ≤ ± 0.2 / RON

4. Division value

0.1/RON; 0.1/MON; 0.1/CN

5. Response time: 1s

6. Result display: Touch screen display; Storage; Oppression

7. Power supply: AC 220V ± 10% ； 50Hz

8. Working environment: Ambient temperature: 10℃～35℃; Relative humidity: ≤ 85%

9. Portable Gasoline Octane Number / Diesel Cetane Number Analyzer Size: 250mm * 200mm * 140mm

• Handheld Octane / Cetane Analyzer for Engine Gasoline and Diesel Fuels

Handheld Octane / Cetane Analyzer can measure both gasoline octane value and diesel cetane value, realizes fast and precise measurement, user-friendly operation….

Property:

1. Handheld Octane / Cetane Analyzer can measure both gasoline octane value and diesel cetane value.

2. Fast and precise measurement, user-friendly operation, large screen with English language, EL backlight make it easier in dark environment, English menu operation on the main panel.

3. Tree year quality guarantee for circuit board: we promise for free replacement within three years for any non-artificial quality problems. The sensors adopt a fully enclosed design with alloy metal. The outer cover has high strength, impact resistance and water/dust/moisture proof performance. As in the sponge.

4. Upper and lower limits are preset, displayed when the monitor is over the limit, which is convenient for users.

5. The automatic shutdown function can realize energy saving and low power consumption. There are 4 reliable batteries for recycling charging.

Working Principle:

The octane and cetane detector theory is based on the measurement of insulator-magnetic permeability and electron-magnetic induction property. By detecting the dielectric oil environment and comparing it with the data model, the detector can measure the value of octane and sanan. Sensitive sensors can measure the parameters of small environments, then you can get the octane and sans result.

Parameters:

No.	Parameters Description	Value
1	Octane measurement unit is ON (users can be adjusted as needed)	40-120
2	Octane allowable error per unit (max)	±0.5
3	Octane octane range, per unit (max)	±0.2
4	Cetane unit of measurement is CN (can be set as user if necessary)	20-100
5	cetane permissible error per CN unit (max)	±1
6	Fluctuation range setane, CN Per unit (max)	±0.5
7	Measuring time (second)	<>
8	The critical value for the battery when the voltage is too low, V	2.5
9	Monitor, mm(L×W×H)	224x106x40
10	Sensor, mm	60х100
11	Weight, Kg (max)	5
12	Working time (unit: hour)	15
13	Image	LED display, printable result
14	Power consumption	30ma

Fuel Octane Analyzer

The octane number is the percentage of the volume of iso-octane in the iso-octane-heptane mixture matched to the fuel tested in a standard test engine. The Fuel Octane Analyzer is a measure of gasoline’s hitting resistance to produce pinging or clicking noises in a car’s engine when you press the accelerator pedal.

one	reference standard	ASTM D2699, ASTM D2700
2nd	Sample test	Gasoline
3	Operating temperature	-5 ° C ~ 30 ℃
4	Octane measuring range (ON)	40-120
5	Do not allow measurement error	± 0.5
6	Floating measurement result range	±0.2
7	Measurement time (sec)	<>
8	Normal cooldown (s)	200
9	Output mode	LCD screen, printer output
10	Weight	15kg

 

1) Multiple operating modes installed in it, which can adapt to the detection of various gasoline.

2) Fast and accurate detection, simple operation, large screen English display.

3) The upper and lower limits of the mode can be preset, and the screen will automatically display out of range, which is convenient for user detection needs.

4) Fuel Octane Analyzer has result printing function.

5) It has automatic calibration function, correction feature, which can use standard oil to calibrate one point, two points, three points, and can automatically revise the system error.

Cetane Tester

The cetane tester GD-QX-G is suitable for determining the cetane number of automobile diesel fuels. With high precision digital sensor, strong anti-interference ability, less deviation, high precision, good repeatability and repeatability.

mein tecnical

1.The setane tester adopts color LCD touch screen with simple and convenient man-machine speech display, ensuring user’s accurate operation according to on-screen cues.

2. The calibration procedure is simple, the method is scientific, and the calibration result is accurate and reliable.

3. The diesel fuel test can display the cetane number. It can take input standard density and medium boiling point cetane index auto.

 

 

Main technical specifications

 

1. Measuring range
aviation gasoline	86.0 ~ 105.0 / MON
National standard for gasoline for motor vehicles	65.0 ~ 110.0 / RON
National V standard	70 ~ 115.0 / RON
mixed gasoline	75.0 ~ 120.0 / RON
light gasoline	50.0 ～ 85.0 / MON
Isomerized gasoline	85.0 ~ 120.0 / RON
Aren benzin	90.0 ~ 120.0 / RON
Ethanol	E93: 92.0 ～ 95.0 / RON E97: 95.0 ～ 99.0 / RON
judgment	60.0 ~ 120.0 / RON
2. Accuracy
aviation gasoline	≤ ± 1.5 / MON
Gasoline for motor vehicles	≤ ± 1.5 / RON ≤ ± 1.5 / MON
Regression sample measurement	≤ ± 1.5 / RON ≤ ± 1.5 / MON
Calibration precision	≤ ± 0.2 / RON ≤ ± 0.2 / MON
3. Sensitivity (confidence level 95%)
reproducibility	≤ ± 0.5 / RON
Repeatability	≤ ± 0.2 / RON
4. Minimum scale	0.1 / RON 0.1 / MON 0.1 / CI
5. Response time	1s
6. Test result	LCD screen, can store and print
7. Power supply	Ac (220 ±% 10) V, (50 ± 1) Hz
8. Working environment	℃ ~ 35 10 ℃
9. relative humidity	≤85%
10. Size	330 mm × 240 mm × 170 mm