The Benchmark S Heated Laboratory Centrifuge was created by L-K Industries as an economical alternative to the Benchmark C unit and offers features distinct from the Melton unit. It meets or exceeds the various requirements for ASTM D4007, ASTM D1796, ASTM D2709, ASTM D2273, ASTM D91, ASTM D96, and ASTM D893 and API standards. It is designed for determining basic sediment and water (BS&W) content at indoor locations without Class I, Division 2 requirements. It is optimal for laboratory settings or refineries using 100-mL capacity tube configurations. The crude oil test centrifuge is preferably installed on benchtops and used to test crude oil or refined petroleum products.
The fully insulated crude oil centrifuge prevents heat loss and allows for more accurate temperature control. Its sturdy outer case is finished with a solvent-resistant powder coating. The crude oil test centrifuge's variable speed motor with LCD display ideally operates at speeds of up to 2000 rpm. The integrated countdown timer, which shuts down the motor when a test is complete, reduces variation in testing. The Benchmark S centrifuge has specially designed collars, cushions and shields that help prevent/reduce tube breakage at higher G-forces.
The Benchmark S features a latching emergency stop button and automatic locking lid (motor will not operate when lid is open; lid will not open while motor is running). It comes with a standard 4-place trunnion arm configuration (compatible with B, C, D or E style centrifuge tubes) and is available in 120VAC or 240VAC.
Features
The Benchmark S meets the requirements for ASTM D4007, ASTM D1796, ASTM D2709, ASTM D2273, ASTM D91, ASTM D96 and ASTM D893. It is designed for determining BS&W content in crude oil or refined petroleum at locations without class I, Division 2 requirements.
The Benchmark S has a variable speed motor with LCD Display and electronic braking. Temperature Display to provide temp accuracy. 
The Benchmark S reaches speeds up to 2000 rpms: controlled stops.
The Benchmark S Series temperature is monitored during titration and titrant addition is interrupted when the temperature exceeds the specified upper limit. This ensures safe measurements even when titrating strong acids with strongbases during which the temperature tends to rise.
The design of the Benchmark Series sensors guarantees the highest accuracy, resolution and best statistical information. Users can set time to the instrumentation needs. Pressurised sensor avoids formation of gas bubbles.
The Benchmark S series Reduces variation in testing.
Benchmark S comes built with a Variable speed motor including LCD Display and electronic braking.
Benchmark S has a Latching emergency stop button with motor lockout circuits and locking lid.
Benchmark S Reaches speeds up to 2000 rpm with controlled stops.
This Benchmark S has Less tube breakage at higher G-forces.Accessories
The following accessories are recommended for purchase in sequential order (see eStore):
| 1st Year: | No spare parts are required |
| 2nd Year: | No spare parts are required |
| Remaining Parts: |
Specs
| Test standards | ASTM D91, ASTM D96, ASTM D893, ASTM D1796, ASTM D2273, ASTM D2709, ASTM D4007 | |
| Variable speed motor with LCD Display and electronic braking | Reach speeds up to 2000 rpm; controlled stops | |
| Manual temperature control (Ambient to 200⁰F) | Real-time adjustment; better process control | |
| Integrated timer | Reduces variation in testing | |
| Specifically designed collars, shields and cushions | Less tube breakage at higher G-forces | |
| Latching emergency stop button and locking lid | Prevents unsafe operation | |
| Fully insulated; outer solvent-resistant, powder coating | Better temperature control (prevents heat loss); sturdy and resilient | |
| Tube Style Compatibility | B, C, D, E | |
| Max RPM | 2200 | |
| Voltage | 120VAC or 240VAC (50-60 Hz, single phase) | |
| Available Configurations | B, C, D or E tube styles | |
| Dimensions / Weight | 110 lbs 28″ x 33″ x 18″ |
