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New! Microprocessor-based LC Detector for Ionic Species
- Turns any HPLC into an Ion Chromatograph
- High Sensitivity Detection of all Charged Species
- Temperature-Controlled Cell for Stable Baselines
- Suitable for Suppressor-Based and Single-Column IC
The Best Detector for Ion Analysis
Turn your HPLC System into a High-Sensitivity Ion Chromatograph!
The Conductivity Detector provides universal, reproducible, high-sensitivity detection of all charged species. Use your HPLC system with the Conductivity Detector for simple, reliable, and inexpensive quantification of anions, cations, metals, organic acids, and surfactants down to ppb level.
| Microprocessor-Based
for High Sensitivity and Extended Linearity The new advanced microprocessor-based circuit improves detection sensitivity by reducing baseline noise and drift. Linear response extends over a wide range of analyte concentrations. |
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| Temperature-Controlled
Cell for Stable, Drift-Free Baselines Temperature fluctuations cause baseline noise and drift with other conductivity detectors. The temperature-controlled cell and heat exchanger are isolated from external temperature changes for stable baselines. Adjust or monitor cell temperature (ambient - 80º C) easily from the detector's front panel. |
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| Works
with any IC Method The digital autozero in the Conductivity Detector offsets high conductivity eluants (up to 10,000 µS/cm) within 5 seconds, for detection with single-column or suppressor-based methods. Other detectors designed for suppressor-based IC systems are unable to offset the high conductivity eluants used in SCIC. |
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Easy to Use, Troubleshoot, and Maintain
The Conductivity Detector makes IC analysis easier and more reliable. An intuitive membrane key-panel controls all detector functions. Three working modes (CALIBRATE, BACKGROUND, and MEASURE) let you check detector electronics, red the eluant's absolute conductivity, or perform analyses, respectively. Use the CALIBRATE mode to check the detector's calibration and gain for compliance with ISO-9000, GLP, or GMP programs. Use the BACKGROUND mode to check the quality and accuracy of the eluant. The large LED display shows detector signal, background conductance, cell temperature, or cell temperature set point. Two keys allow you to set range from 0.1 to 5000 µS/cm or cell temperature from ambient to 80º C. An RS-232 serial port provides digital communication and control via an external computer.
CONDUCTIVITY DETECTOR SPECIFICATIONS |
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| Type: | Alternating current, Synchronous Detection, 10 kHz Frequency |
| Range: | 0.1-5000 m S/cm (DI water, 1 mL/min., 35° C) |
| Noise: | < 0.0025 m S/cm (DI water, 1 mL/min., 35° C) |
| Drift: | < 0.03 m S/cm/hr (DI water, 1 mL/min., 35° C) |
| Digital autozero: | Offsets up to 10,000 m S/cm |
| Cell Type: | 2 electrode, 0.5 m L volume, gold-plated stainless-steel electrodes |
| Display: | 4-digit
LED in 6 modes Working
Modes: Display Modes: |
| Analog Signal Output: | 10 mV and 1V FS, switch-selectable |
| Digital Communications: | RS-232 output of detector signal, external set of detector functions |
| Time Constant: | Fast or Slow, switch-selectable |
CELL COMPARTMENT |
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| Insulation: | Minimum 1 inch all sides |
| Heater: | 45W DC heating element vulcanized to aluminum block |
| Size: | 2.7" W x 2.45" H x 6.2" L |
| Temperature: | Factory-set at 35° C; User-adjustable ambient to 80° C |
| Overtemp Protection: | Factory-set at 60° C; User-adjustable |
| Precision: | ± 0.05° C |
| Heat Exchanger: | TFE tubing knitted and encased in high thermal-mass housing |
ELECTRICAL/ELECTRONIC |
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| Power: | 110/120 Vac, 50/60 Hz (field-selectable) |
| Data: | Analog output, 0-1 Vdc or 0-10 mVdc (selectable) |
| Computer Interface: | RS-232 serial communications |
FLUID PATH |
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| Construction: | All wetted parts are inert polymers: PEEK (polyetherether ketone), and TeflonÒ |
FRONT PANEL FUNCTIONS
| COND | Displays conductivity in m S/cm |
| MEASURE | Displays conductivity with background subtracted |
| BACKGROUND | Displays absolute conductivity with no offset |
| CALIBRATE | Checks gain and calibration of detector electronics |
| TEMP | Displays actual cell temperature |
| TEMP SET | Displays cell temperature set point. Adjust by using the UP and DOWN arrow keys. |
| AUTOZERO | Digitally offsets the background conductivity while in the MEASURE mode |
| UP and DOWN arrows | Select the range in the COND mode or the cell temperature set point while in the TEMP SET mode |
CONDUCTIVITY DETECTOR
Features and Benefits
| Feature | Benefit |
| Convenience and Reliability | |
| Tactile membrane front panel | Simple, intuitive control of all detector functions |
| Internal calibration | Verifies electronic calibration and gain for ISO-9000, GLP, and GMP compliance |
| Background mode | Measures eluant's absolute conductivity for quick troubleshooting |
| Read and set cell temperature from the front panel | Fast, easy adjustment and verification of cell temperature |
| Remote operation of detector functions or digital transmission of detector signal via RS-232 | Operate the detector of collect data with an external computer |
| Performance | |
| Microprocessor-based | Low noise and drift for higher sensitivity, wide dynamic range, and fast, digital autozero |
| Temperature-controlled cell housing with built-in heat exchanger | Stable baselines, even at high sensitivity ranges |
| Digital autozero | Offsets high-conductivity eluants for compatibility with single-column or suppressor-based methods |
| Synchronous AC detection | Simple two-electrode cell for high reliability and low maintenance |
| Versatility | |
| Compact modular design | Adds IC capability to any existing HPLC system |
| Electronic offset of high-conductivity or low-conductivity eluants | Works with both single-column and suppressor-based methods |
Ordering information
| Part No. | Description |
| AL5500 | Conductivity Detector |
| AL3351 | Chemical suppressor module for Conductivity Detector |
| AL-535100 | Eris 1000™ Autosuppressor |
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