-->
LC-100 S-HPLCTM
Introduction
LC-100 series S-HPLC is under fully automatic digital computer control. Its electronic circuit design, internal mechanical structure design, processing technology of work pieces, functions of chromatograph workstation and the technical criteria make it a leading products with excellent stability and reliability.

Features

Main features

  • Fully automated digital intelligent computer control
  • In-parallel connected pumps with reciprocating double plungers improves the stability, reliability and the service life.
  • Noval appearance, convenient and simple operation and Ergonomic design
  • Precise postioning structure in the optical path system
  • Heat insulation installation technology guarantees high precision, small excursion, and shorter period for stablization
  • All components are made by leading digital processing centers of the world

Features of pump and pump control

  • Microprocessor controlled reciprocating pump with a parallel connection of double plungers has higher operating pressure, smaller pulsation stable performance convenient operation, etc. Through alternating the double plungers to perfuse the service life of the piston rod and that of the leather packing collar are twice longer than those of common pumps with connection in series.
  • All the mechanical components of the pumps adopt the computer aided design Every key spare part is made in advanced digital control machining centers of the world. So, on the basis of such extraordinary machining accuracy and every set of pump after strict pressure tests we can guarantee that our pumps will never have any possibility of leakages! Please use it free from care.
  • The product has process monitoring function. The microprocessor furnished has the flow of the pump under a real-time control and provides an actual monitoring of the perfusion pressure. Once the pressure exceeds the limit the pump will give an alarm and automatically stop operating.
  • When perform the equality analysis of mono pump we can shift between various operating modes by pressing four function keys in accordance with the prompts on the LCD display of the instrument and can conveniently set the settings of the flow maximal/minimal pressure limit, working hours, pressure unit and some other parameters related.
  • Advanced Structural design is applied to the whole structure design. Both the mechanical and circuit parts can be independently assembled/disassembled. Therefore so it is very conveniently for troubleshooting and replacement.
  • The microprecessor controlled micro drive circuit makes the stepper motor that drives the pump runs steadily, reduces its noise and enlarges the allowable range of speed regulation. So the product can easily satisfy the requirements of both the routine analysts and the microanalysis of flow.
  • The microprocessor performs a real-time control of flow and monitors the actual perfusion pressure constantly. In case of the pressure limit is exceeded it will give an alarm and stopping the pump's operation automatically

Features of UV detectors

  • With digital switch system the detector directly outputs digital signal to the WS100 workstation to avoid the signal distortion and interference that common UV detectors may bring about during their multiple analog-to-digital conversion of chromatograph signal.
  • The flow cell design improves the detector's every technical parameter.
  • A precise positioning structure with high accuracy and small deviation is applied in the optical path system
  • Heat insulation is used in deuterium lamp and the optical path system to shortens stabilizing procedure and minimizes the negative effect that the deuterium lamp brings to the optical path system.
  • The preamplifier adopts an instrument amplifier with high impedance but low excursion and an A/D switch with high definition. Under common analysis circumstances its dynamic range can amount to 106 which ensures the precision of logarithmic calculation.
Specifications - Pumps
Flow Control Range 0.001 ~ 9.999 mL/min, regulate the flow by the step length of 0.001 mL/min
Error of Set value SS ±2%
Flow Stability Error SR <0.3%
Peak Operating Pressure 42 MPa(0.001-9.999mL/min)
Pressure Linearity and Accuracy The pressure error displayed is less than ±0.5MPa(0~42MPa)
Pressure Pulsation less than 0.1 MPa(Flow: 1 mL/min, Pressure: 5~10MPa)
Leak Tightness of Pump pressure (42 MPa), working hours (10mins), pressure fall(less than 0.5 Mpa)
Overall Dimension 450mm(L) × 300mm(W) × 160mm(H)
Specifications - UV detector
Wavelength Range 190 ~ 600nm
Baseline Noise £ 5 × 10-5 AU Peak-to-peak Value (Methanol, 1mL/min, 254nm, 20°C)
£ ± 0.25 × 10-5 AU(empty cell, response time: 1 second, 20°C
Baseline Drift £ 5 × 10-4AU/hr (Methanol, 1mL/min, 254nm, 20°C)
£ 0.4 × 10-4 AU (empty cell, response time: 1 second, 20°C)
Minimum detection Quantity £ 2 × 10-8 g/ml (Naphthalene/Methanol solvent)
Wavelength Value Error £ ± 2nm
Wavelength Repeatability £ 0.2nm
spectrum Band width 8nm
Linearity Range  ³ 104