ASI 546 Star Pilot Pump: high-pressure metering pump for 24/7 process environments
The ASI 546 Star Pilot Pump is optimised for production and engineering applications that require high-pressure metering and accurate liquid flows under continuous operating conditions. Where the 545 Star Prep Pump offers the lowest pulsation for the most sensitive applications, the 546 is optimised for maximum robustness and availability in 24/7-productieomgevingen, with a pulsation below 5% ΔP/P. The four available flow ranges (250, 500, 1.000 and 1.500 mL/min) cover the most common process-scale applications.
Applications
The 546 is used for high-pressure liquid metering in the chemical and pharmaceutical industries, continuous process monitoring, pilot-scale chromatography, supercritical fluid chromatography and other process instrumentation where robustness and availability take priority over minimal pulsation. For applications with absolute minimal pulsation requirements, the 545 Star Prep Pump is the preferred choice.
Self-priming pump head and maintenance
The pump head is self-priming with an integrated priming/purge function for quick solvent changes. A wash option is available for applications with buffers. All user-serviceable parts are accessible via the front panel.
Solvent compressibility compensation
The user can choose from a library of 15 standard solvents for automatic compressibility compensation, supplemented by 14 user-defined solvents.
Method programming
Up to 1.000 method steps can be programmed via the USB serial computer connection with Modbus protocol. A constant-pressure mode is available as an option.
OEM options
The 546 is fully available for OEM integration, as a stand-alone pump or as a complete assembly including hydraulic module, wash pump, damper and servo controller on a base plate. For wetted materials in titanium or PEEK, please contact Inacom.
Properties
- Optimised durability for 24/7 production conditions
- Pulsation: less than 5% ΔP/P
- Flow precision: 0,50% at 100 to 500 mL/min
- Flow accuracy: ±200 µL/min or ±1% (whichever is higher)
- Flow ranges: 250, 500, 1.000 and 1.500 mL/min (depending on model)
- Wetted materials: 316 stainless steel, PEEK, titanium, PTFE or UHMW, YSZ ceramic, sapphire and ruby
- Intuitive touchscreen display
- USB serial connection, Modbus RTU via USB
- Method programming up to 1.000 steps via Modbus
- Constant-pressure mode available
- Self-priming pump head with priming/purge
- Solvent compressibility compensation (15 standard + 14 user settings)
- Wash option for buffer applications
- OEM private label available
- Power supply: 220/240 VAC, 50/60 Hz, single phase
Technical specifications
| Item number | Flow range | Max. pressure |
|---|
| 546-0250HP | 2–250 mL/min | 10.000 psi |
| 546-0500 | 2–500 mL/min | 6.500 psi |
| 546-1000 | 2–1.000 mL/min | 4.500 psi |
| 546-1500 | 5–1.500 mL/min | 3.000 psi |
| Feature | Value |
|---|
| Dimensions | 29,2 cm B × 52,7 cm D × 28,6 cm H |
| Weight | 34 kg |
| Power supply | 220/240 VAC, 50/60 Hz, single phase |
| Operating temperature | 10–40 °C, ≤80% RH non-condensing |
