Download the ROI Sheet
The reliable LS Class consists of single-headed, positive displacement piston pumps incorporating advanced cam designs for very low pulsation. With micro-stepping motor technology and a proven single-piston pump mechanism, the LS Class exceeds the performance of more expensive units at a fraction of the cost.
The pumps are ideal for a wide variety of HPLC applications (including Bio-compatible separations), Semi-Prep LC, metering & dispensing, and general laboratory use. Standard fluid path materials are Stainless Steel and PEEK, with optional Titanium and Hastelloy also available. Other optional features include jacketed pump heads for temperature-controlled applications. With 5 mL/min, 10 mL/min and 40 mL/min versions available, and pressure capability up to 6,000 psi, these versatile pumps will meet the most demanding applications.
Features include automatic pressure compensation, Pulse Dampener, integrated Prime-Purge Valve, interactive keypad control, and complete PC control and status through RS- 232C, micro-USB, and Ethernet serial communications. The unique LS Class provides the highest performance/cost ratio in a compact package.
| Flow Rate | Pressure | Fluid Path | Control |
|---|---|---|---|
| 5 mL/min 10 mL/min 40 mL/min |
Up To 6,000 psi (5 ml/min or 10 ml/min) |
Stainless Steel PEEK, Titanium, or Hastelloy |
RS-232, Micro USB Ethernet, Run/Stop, Analog (0-10 V, 4-20 mA) |
LS Class Specifications
| 5 mL/min | 10 mL/min | 40 mL/min | |
|---|---|---|---|
| Flow Rate Range | 0.001 – 5.000 mL/min | 0.01 – 10.00 mL/min | 0.1 – 40.0 mL/min |
| Flow Rate Increment | 0.001 mL/min | 0.01 mL/min | 0.1 mL/min |
| Flow Rate Accuracy* | ±2% (0.500 – 5.000 mL/min; 80:20 Water/IPA; 1,000 psi) | ±2% (1.00 – 10.00 mL/min; 80:20 Water/IPA; 1,000 psi) | ±2% (4.0 – 40.0 mL/min; 80:20 Water/IPA; 1,000 psi) |
| Flow Reproducibility | 1% RSD (0.500 – 5.000 mL/min; 80:20 Water/IPA; 1,000 psi) | 1% RSD (1.00 – 10.00 mL/min; 80:20 Water/IPA; 1,000 psi) | 1% RSD (0.5 – 40.0 mL/min; 80:20 Water/IPA; 1,000 psi) |
| Maximum Delivery Pressure | 5,000 psi (PEEK) 6,000 psi (Stainless Steel, Titanium, and Hastelloy) |
5,000 psi (PEEK) 6,000 psi (Stainless Steel, Titanium, and Hastelloy) |
1,500 psi |
| Pressure Accuracy | ±50 psi | ||
| Pulsation | ≤2.0% @ 1 mL/min and 80:20 Water/IPA; 1,000 psi | ≤3.0% @ 1 mL/min and 80:20 Water/IPA; 1,000 psi | ≤4.0% @ 4 mL/min and 80:20 Water/IPA; 1,000 psi |
| Piston Displacement | 25.1 µL | 50.3 µL | 201 µL |
| Piston Wash | Self-flushing pump heads – continuous wash without auxiliary pump | ||
| Wetted Materials |
PEEK pumps may include: PEEK, Synthetic Ruby, Sapphire, Zirconia, UHMWPE, FFKM, PFA, ETFE Stainless Steel pumps may include: 316 Stainless Steel, PEEK, Synthetic Ruby, Sapphire, Zirconia, UHMWPE, PFA, PTFE, ETFE Hastelloy pumps may include: Hastelloy C-276, Synthetic Ruby, Sapphire, Zirconia, UHMWPE, FFKM,PFA, PTFE, ETFE |
||
| Dimensions (H x W x D) | 6.4” x 7.0” x 16.0” (16.3 x 17.8 x 40.6 cm) | ||
| Weight | 15.5 lbs (7.0 kg) | ||
| Power | 100 – 240 VAC (±10%), 50 – 60 Hz, 45 W | ||
| Front Panel | 5-digit LED to monitor flow rate, pressure, and indicate parameters and alarms. Run/Stop, Prime, and menu keys, seven status indicators, Increase/Decrease displayed parameters. | ||
| Communication | RS-232, micro-USB, LAN (serial communications) Run/Stop TTL, Analog flow control (0 –10 V, 4 –20 mA) |
||
| Viscosity** | 0.5 – 3.0 cP | 0.5 – 5.0 cP | 0.5 – 9.4 cP |
| Liquid Temperature | 0 – 82 °C | ||
| Environment | Indoor use only (Pollution degree 2) | ||
| Altitude | Up to 2000 m (6500 ft) | ||
| Ambient Temperature | 10 – 30 °C | ||
| Humidity | 20 – 90% relative humidity | ||
*Flow Rate is dependent on solvent selection and operating pressure
**Range of fluid viscosities where published flow accuracy is maintained