Product Description
The SX Series Portable Octane and Cetane Meters are advanced handheld analyzers designed for fuel and oil quality testing. These instruments provide fast, accurate, and non-destructive analysis of gasoline, diesel, biodiesel, and lubricants.
Built on high-precision microprocessor technology, the SX series allows real-time quality evaluation in the field or laboratory. Each model supports octane (ASTM D 2699/2700) and cetane (ASTM D 4737/D 613/EN ISO 5165) measurement, with additional capabilities depending on the model.
Compact, durable, and PC-connectable via USB, the SX series is trusted worldwide by oil companies, refineries, laboratories, and quality control teams.
Key Features (All Models)
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Measures octane number (ON) of gasoline and cetane number (CN) of diesel fuels
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Compliance with international standards (ASTM, EN ISO)
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Quick measurement time: 1–5 seconds
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Built-in memory and USB export (.xlsx / .txt)
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8-key anti-glare keyboard, wear-resistant and chemical-proof
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Portable and field-ready, with ≥6 years useful life
Model-Specific Highlights
SX-150 (Essential)
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Tests: Octane (ON), Cetane (CN), Cold Filter Plugging Point (CFPP), Gasoline breakdown time, Kerosene in diesel
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Compact entry-level model for standard fuel quality checks
SX-250 (Professional)
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Includes all SX-150 functions
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Adds: Motor oil purity, dielectric permeability (Eps), water in diesel
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Ideal for broader oil & diesel quality analysis
SX-300 (Advanced)
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Includes all SX-250 functions
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Adds: Antiknock additive detection, engine oil base number, mechanical impurities, transformer oil breakdown voltage, dielectric dissipation, fuel oil conductivity, oil resistivity
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Best choice for laboratories and advanced testing requirements
SX Series Capability Comparison
| Capability | SX-150 | SX-250 | SX-300 |
|---|---|---|---|
| Determining octane numbers for gasoline (ASTM D 2699/2700) | ✔ | ✔ | ✔ |
| Determining cetane numbers for diesel fuel (ASTM D 4737/D 613/EN ISO 5165) | ✔ | ✔ | ✔ |
| Cold filter plugging point and diesel type | ✔ | ✔ | ✔ |
| Content of kerosene in diesel fuel | ✔ | ✔ | ✔ |
| Petrol breakdown time (oxidative stability, ASTM D 525) | ✔ | ✔ | ✔ |
| Content of water in diesel fuel | – | ✔ | ✔ |
| Level of engine & machine oil clarity | – | ✔ | ✔ |
| Dielectric permeability of oil products (Eps) | – | ✔ | ✔ |
| Determining cetane numbers for biodiesel | – | – | ✔ |
| Content of oil in gasoline | – | – | ✔ |
| Content of antiknock compounds in petrol | – | – | ✔ |
| Transformer oil dielectric dissipation | – | – | ✔ |
| Transformer oil breakdown voltage | – | – | ✔ |
| Fuel oil conductivity | – | – | ✔ |
| Engine oil grade | – | – | ✔ |
| Engine oil base number | – | – | ✔ |
| Oil products volume resistivity | – | – | ✔ |
| Mechanical impurities in oil products | – | – | ✔ |
Measurement & Accuracy
| Parameter | SX-150 | SX-250 | SX-300 |
|---|---|---|---|
| Octane number range | 40–135 ON | 40–135 ON | 40–135 ON |
| Octane accuracy | ±0.5 ON | ±0.5 ON | ±0.5 ON |
| Cetane number range | 20–100 CN | 20–100 CN | 20–100 CN |
| Cetane accuracy | ±1.0 CN | ±1.0 CN | ±1.0 CN |
| Cetane parallel difference limit | ±0.5 CN | ±0.5 CN | ±0.5 CN |
| Petrol oxidation breakdown time | 50–2400 min | 50–2400 min | 50–2400 min |
| Breakdown time error limit | 10 min | 10 min | 10 min |
| Diesel pour point error | ±5°C | ±5°C | ±5°C |
| Kerosene detection range in diesel | 0–95% | 0–95% | 0–95% |
| Kerosene detection error | 3% | 3% | 3% |
| Measurement time | 1–5 sec | 1–5 sec | 1–5 sec |
Additional Specs
| Parameter | SX-150 | SX-250 | SX-300 |
|---|---|---|---|
| Instrument useful life | ≥6 years | ≥6 years | ≥6 years |
| Power supply threshold | 5.4V | 5.4V | 5.4V |
| Motor oils clarity measurement | 95–100% | 95–100% | 95–100% |
| Circuit-breaker oil breakdown voltage range | – | – | 5–100 kV |
| Breakdown voltage error limit | – | – | 1 kV |
| Breakdown time difference limit | – | – | 0.2 kV |
| Circuit-breaker oil loss angle tangent range | – | – | 0.01–5% |
| Loss angle error limit | – | – | 0.01% |
| Loss angle parallel difference | – | – | 0.001 Units |
| Mechanical impurities measurement range | – | – | 97–100% |
| Mechanical impurities error limit | – | – | 0.01% |
Downloads
Data Sheet SX-150 Link
Data Sheet SX-250 Link
Data Sheet SX-300 Link
Product title
Vendor
R 19.99 | R 24.99
Product title
Vendor
R 19.99 | R 24.99
Product title
Vendor
R 19.99 | R 24.99
Product title
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