Automatic Pour & Cloud Point Tester: RPC-401
The RPC-401 is a single-place automatic pour and cloud point tester built around a Free-Piston Stirling Cooler (FPSC). Because the FPSC cooling engine is self-contained, the instrument does not require an auxiliary cooling system based on alcohol refrigerant or fluorocarbon gas, making it compact and environmentally friendly.
Manufacturer: Rigo — Japan
Overview
The RPC-401 is a single-place automatic pour and cloud point tester built around a Free-Piston Stirling Cooler (FPSC). Because the FPSC cooling engine is self-contained, the instrument does not require an auxiliary cooling system based on alcohol refrigerant or fluorocarbon gas, making it compact and environmentally friendly. As with RIGO's larger RPC-3 series, the instrument can measure cloud point and then continue directly into a pour point measurement on the same sample. A sister CFPP (cold filter plugging point) tester is also available in the same product family for laboratories that need all three low-temperature fluidity tests.
Compact, Refrigerant-Free Cooling
The RPC-401 integrates a Free-Piston Stirling Cooler directly into the instrument, eliminating the need for a separate cooling bath filled with alcohol refrigerant or fluorocarbon gas. This design reduces the footprint of the tester and avoids the environmental and handling concerns associated with conventional refrigerants.
Common Specifications
| Specification | RPC-401 |
|---|---|
| Configuration | 1 test position, built-in refrigeration unit |
| Cooling technology | Free-Piston Stirling Cooler (FPSC) |
| Measurement sequence | Continuous cloud point measurement followed by pour point measurement on the same sample |