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The Pharmacia Biotech P-500 Pump is a very accurate and reproducible solvent delivery system, suitable for both analytical and preparative chromatography, and other applications where precision and constant flow at pressures from 0-4 MPa (600 psi) is required.

Specifications:
- Flow rate range: 1-499 ml/h variable in steps of 1 ml/h
- Flow accuracy: +/- 1.5% of setting or +/- 0.5% mL/h (whichever is greater) independent of back pressure
- Reproducibility: Better than 0.5% of set flow rate
- Flow rate adjustment: Thumb wheel: 0.1 ml/min increments. Remotely: 0.01 ml/min with UNICORN or LCC-501 Plus
- Flow rate precision: Better than 1% over 8 hours at 160 ml/h with the same solvent and temperature
- Pressure readout 0-5.0 MPa (0-50 bar, 0-700 psi)
- Step volume: 2.2 ìl
- Operating pressure: 4.0 MPa, (40 bar, 580 psi) up to 200 ml/h. 2.5 MPa (25 bar, 360 psi) in the range 200-499 ml/h
- Pressure limit: Protective shutdown, adjustable in the range 0-5.0 MPa (0-50 bar, 0-700 psi)
- Pressure output signal: 0.5 MPa (5 bar, 70 psi)/mV