LC Epsilon Features and Specifications

Features

• 1-, 2-, or 4-channel electrochemical detection (EC) available
• Pulsed amperometric detection (PAD)
• ChromGraph® control, data acquisition, and analysis software
• Provision for inputs from two external LC detectors (maximum of four total detectors)
• Optically isolated circuitry for noise reduction
• Both analog and digital filtering for maximum noise reduction
• 100 pA to 5 mA gain ranges
• 20-bit data resolution
• 1- and 2-channel instruments can be easily upgraded to 2 or 4- channels

Data Channel Configurations

• One Channel: 1 EC or 1 PAD or 1 external (e.g. UV or fluorescent)
• Two Channel: 2 EC or 1 EC & 1 external or 2 externals (e.g. UV and fluorescent) or 1 PAD
• Four Channel: 4 EC or 3 EC & 1 external or 2 EC & 2 externals (e.g. UV or fluorescent) or 1 PAD

Specifications

Data Acquisition for All Channels

• Resolution: 20 bit data
• Data acquisition speed: 75, 150, 300, 600, 1200 points per minute

Potentiostat

• Applied Potential: 0±2.55 V for EC Channels
• Potential resolution: 10 mV
• Compliance Voltage: ±12 V

Current-to-Voltage Converter

• Current Ranges Channels W1 and W2:
  24 ranges: 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, 10, 20, 50, 100, 200, 500 nA/V and 1, 2, 5, 10, 20, 50, 100, 200, 500µA/V and 1, 2, 5 mA/V
• Current Ranges Channels W3 and W4:
  13 ranges: 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, 10, 20, 50, 100, 200, 500 nA/V and 1µA/V
• Maximum Current: Channels W1 and W2: 5 mA
• Maximum Current: Channels W3 and W4: 1µA
• Filtering applied to EC Channels and External Channels
• Digital Filter, 12 settings: 0.04, 0.05, 0.06, 0.08, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.8, 1.0 Hz, none
• Analog filter: 0.1, 1, 10, 100, 1000, and 10,000 Hz
• Offset, Detector Channels W1 and W2: 0 to +/-1mA
• Offset, Detector Channels W3 and W4: 0 to +/-1uA
• AutoZero (All the EC Channels): 0-100% full scale

Input/Output of the Back Panel

• External Input Channels: 3 ranges: +/-10V, +/-1V, +/-100mV
• Autosampler
• Current Analog Output for W1, W2, W3 & W4 : +/-1V
• Potential Analog Output -Eout for W1
• External Input Connector: Ext-1 and Ext-2 (Ext-2 requires W2 Analog board)
• Control Connector: Start in, Stop in, Start out, Stop out
• Event Connectors: 4 SPDT relays with NO, NC, and COM Terminals
• USB Connector to the PC
• W1 Cell Connector: Standard LEMO Connector for W1 cell - as used with other BASi® products
• W2-4 Cell Connector: LEMO connector (size 2)

Power

• 120 or 240 VAC, 50/60 Hz, 60 VA

Dimensions and Weight

• 16.75" (43 cm) X 5.25" (13 cm) X 12.75" (32.5 cm)
• 1 channel - 20.2 lb. (9.2 kg)

Minimum PC Requirements

• Windows 2000, XP, Vista , or Windows 7
• Pentium III or higher
• 512 MB RAM
• 20 MB hard drive space available
• CD-ROM drive
• USB port

When you purchase the LC epsilon with a BASi® computer, ChromGraph will come pre-loaded and ready to run.