Features of 331/332 HPLC Pumps

General Specifications

There are no General Specifications available.

Additional Specifications

Composition and Mixing:    
Increment: 0.1%   
Dwell Volume: 372–2,372 µL, pressure independent   
Gradient Linearity Range: 1–98% B for 10 mL/min and higher   
Environmental Conditions:    
Indoor use   
Altitude: up to 2000 m   
Temperature range: 5–40°C   
Air pressure: 75–105 kPa   
Pollution degree: 1 or 2, in accordance with IEC 66   
Humidity: Maximum relative humidity 80% for temperatures up to 31°C, decreasing linearly to 50% relative humidity at 40°C   
Front Panel (331 Pump):   
40-character, eight-line display, adjustable contrast and screen saver; 25 functional keys, including six soft keys   
Flow Rate:    
0.5–50 mL/min (8,700 psi)   
Selectable units: µL/min and mL/min (default: mL/min)   
Adjustment increment: 1 µL/min   
Accuracy: bias <±1% or 1.3 µL/min (331), bias <±2% or 13 µL/min (331/332)   
Repeatability: RSD <0.5% or 1 µL/min (331), RSD <0.7% or 7 µL/min (331/332)   
Liquid-Contact Materials:    
316L stainless steel, titanium, FEP, PTFE, PCTFE, ETFE, PEEK, UHMWPE, ruby, sapphire, and ceramics   
Power Requirements:    
Frequency: 50–60 Hz   
Voltage: 90–120 or 220–260V; mains voltage fluctuations not to exceed ±10% of the nominal voltage   
Pressure:    
Nominal range: from 0.5 MPa (5 bar, 70 psi) up to 60 MPa (600 bar, 8,700 psi)   
Pump Options:    
331: single-solvent master pump (w/control panel), 0.05–50 mL/min, 60 MPa (8,700 psi)   
331/332: two-solvent pumping system, 0.5–50 mL/min, 60 MPa (8,700 psi)   
332: third-solvent, remote controlled pump (w/o control panel), 0.5–50 mL/min, 60 MPa (8,700 psi)   
Software:    
Controlled by TRILUTION® LC Software or by the front panel display on the 331   
Dimensions (w x d x h):    
331: 26 x 41 x 50.7 cm (10.2 x 16.1 x 20 in.)   
332: 26 x 41 x 38.7 cm (10.2 x 16.1 x 15.2 in.)   
Weight:    
35 kg (77 lbs.)