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| Brand | CFR |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | CFR F-5 |
| Configuration | Benchtop |
| Measurement Parameter | Diesel Cetane Number |
| Compliance Standard | ASTM D613, GB/T 386–1991, ASTM D975 (Arbitration Method) |
| Key | Brand: CFR |
|---|---|
| Origin | USA |
| Model | F1/F2 |
| Application | Gasoline Octane Number (RON/MON) Determination |
| Configuration | Benchtop |
| Standards Compliance | ASTM D2699, ASTM D2700, ISO 5164, ISO 5163, GB/T 5487, GB/T 503 |
| Compression Ratio Range | 4:1 to 18:1 (continuously adjustable) |
| Ignition Timing | 13° BTDC (capacitor discharge system) |
| Knock Detection | Factory-calibrated analog knock meter (0–100 scale), magnetic reluctance sensor mounted in combustion chamber |
| Lubrication | Pressure-fed, external oil pump with filtration, cooling, and flow monitoring |
| Cooling System | Thermosiphon jacketed cylinder with boiling/condensation recirculation |
| Air Intake Humidity Control | 25–50 g H₂O per lb dry air (ASTM-compliant) |
| Safety Interlocks | Low oil pressure, low coolant pressure, low voltage, motor overload |
| Drive Motor | Three-phase synchronous/reluctance motor (constant-speed operation) |
| Carburetor | Single-venturi, level-viewable fuel bowl |
| Cylinder Head | Monolithic, integrated design for thermal stability and measurement repeatability |
| Crankcase | CFR 48D cast iron box-type, service-accessible side and gear covers |