Firma:                Dionex

Modell:              IC-System

Kommentar:      Dokumente engl. (für Id. 14628)

GP40 Gardient Pump

The GP40 Gradient Pump is an integral part of a DX 500 chromatography system. It is a microprocessor-based, dual-piston, variable-Speed, gradient delivery system designed to blend and pump mixtures of up to four different mobile phases at precisely controlled flow rates. The pump can deliver the selected mobile Phase composition isocratically, or as a multistep linear or curved gradient, A Digital Signal Processor (DSP) provides high Speed control of pump flow and Pressure.

The GP40 can operate as a stand-alone product or with other Dionex modules as part of a complete chromatography system. It can also be used with non-Dionex modules that meet Interface requirements for software, TTL, or relay control.

The GP40 can be controlled locally, using the front panel keypad and display, or from a remote host computer with a Dionex

DX LANTM interface installed and PeakNet software installed an the host computer. Limited remote control is also available from any device capable of providing compatible TTL signals to control the pump.

The pump's two basic modes of control, Direct control and Method control, enable it to operate with or without reference to time-based events.

Specifications

Electrical

  Main Power Requiremtns           85 to 270 Vac, 47163 Hz, 2.5 amps. The GP40 power supply is main voltalte auto-sensing and requires no manual adjustment.

  Fuse Requirements                   Two 3.15 amp fast-blow 1EC 127 fuses (P/N 954745)

Environmental

  Operating Temperature              10 °C to 50 °C (50 °F to 104 °F)

  Operating Humidity                    5 to 95% relative humidity (non-condensing) Humidity

Physical

  Dimensions                              33.5 cm high x 22.5 cm wide x 42 cm deep
(13.1 inx8.9inx 16.8 in)

                                    6 cm clearance required in back of the module

  Weight                                     19 kg (42 Ibs)

Display and Keypad

  Display                                     Liquid crystal with .adjustable backlighting.

  Keypad                                    26-button pad for entering commands and numerical values for

            screen parameters.

Hydraulics

  Eluent Selection                        Four different mobile phase components; each can be

                                               proportioned from 0-100%

  Pump                                                  Dual-piston, variable speed, 100 iaL (standard bore), 25 µL (microbore) stroke, user-selectable constant pressure or constant flow feedback control

  Flow Rate                                 Standard bore pump head: 0.04 to 10.0 mL/min, linearly variable in increments of 0.01 mL/min

Microbore pump head: 0.01 to 2.50 mL/min, linearly variable in increments of 0.01 mL/min

  Operating Pressure                   35 MPa (5000 psi) maximum

  Pressure Resolution                  0.07 MPa (10 psi)

  High Pressure Limit                   0 to 35 MPa (0-5000 psi) in increments of

                                               0.05 MPa (7.25 psi); trips instantaneously

  Low Pressure Limit                   0. to 35 MPa (0 to 5000 psi) in increments of

                                      0.05 MPa (7.25 psi); trips after a time-out of 0.4 mL for the standard bore GP40 or 0.1 mL for the microbore GP40

  Delay Volume                           Approximately 0.92 mL for standard bore pump heads or 0.72 mL for microbore pump heads, measured from the proportioning valve up to, and including, the 61-cm (24-in) pressure transducer outlet line.

Gradient Control

  Methods                                   Stores up to 100 separate gradient methods (00 through 99), each of which may contain up to 50 separate steps. The actual number of stored methods depends an available memory.

  Control                                     The keypad is used to select the pump's operating parameters and to program methods.

  Storage                                    Non-volatile memory protects against the loss of programs during Power-down or in the event of a Power failure.

  Remote                                    Limited remote operation via TTL-input logic level, and TTL-output and relay contact closures, or full remote programming and control through DX LAN interface.

Vacuum Degas Pump Assembly

  Channels                                  4-channel membrane vacuum degas

  Materials                                  wetted materials, PEEK, PTFE

  Performance                             >69% degas ratio @ 1 or 3 mL/min with 8.5 ppm 02 at input
0.200 Kg F/cm2 flow resistance @ 10 mL/min

LC 20 Chromatography Enclosure

The LC20 Chromatography Enclosure is an integral part of the Dionex DX 500 Chromatography Systems. It can house the following system components, which must be ordered separately or as part of another module: Separator columns, optional guard columns, SRSTM (Self-Regenerating Suppressor), DS3 Detection Stabilizer, and detector cell(s) for the ED40 Electrochemical Detector and CD20 Conductivity Detector.

The LC20 is available in two configurations, depending an the type of injection valve installed:

•     LC30, PEEK automated injection valve (P/N 044088)

•     LC30, stainless steel automated injection valve (P/N 044171)

Eluent from the gradient pump enters the Rheodyne injection valve port inside the enclosure. From the injection valve, eluent and sample flow through the guard column (if used), the separator column, the suppressor or other post-column device, and finally through the detector cells.

The LC20 may be configured for optional dual-channel operation. It will then include a second Rheodyne injection valve and component panel. There is enough tubing in the LC20 Ship Kit (P/N 046300) to plumb two systems.

The LC20 does not require Power. Internal components are operated by the GP40/IP20 pump.

Specifications

Environmental

  Ambient                          4 °C to 75 °C

  Temperature:                   (40 °F to 167 °F)

  Humidity:                        5-95% relative (non-condensing)

  Air Pressure:                   400 to 800 KPa (60 to 120) psi for the Rheodyne injection valve and column select valve;

Use laboratory-quality air or regulated compressed air, nitrogen, or helium.

  Operating Pressure          35 MPa (5000 psi) maximum liquid path (tubing, valves,            columns, etc.)

Physical

  Dimensions:                    50 cm high x 22.5 cm wide x 49 cm deep
(20.8 in x 8.9 in x 20.4 in)

6 cm clearance required in back of the module

  Weight:                           12 kg (25lbs)

Hydraulics

  Rheodyne Injection          35 MPa (5000 psi) metal-free or stainless steel rotary valve

  Valve                              for low-volume injections.

  Column Select Valve        28 MPa (4000 psi) metal-free column select valve to direct

                                      eluent and sample to one of two columns. The column select valve option is installed at the factory but is not plumbed into the system. Tubing to plumb the LC20 for column select applications is included in the LC20 Ship Kit (P/N 046300).

Insulation

Dampening                       Dampens outside temperature variations by a factor of

                                      - 5 to 10 over minutes

              - 2 to 4 over 60 minutes

CD 20 Conductivity Detector

The CD20 is a sensitive, accurate, and versatile conductivity detector for detecting and quantifying ionic analytes in liquid and ion chromatography. It is especially useful for those analytes which lack UV chromophores and cannot be determined with adequate sensitivity by UV absorbance. This includes a wide variety of both organic and inorganic molecules; cations as well as anions. The major organic analytes are carboxylic, sulfonic, and phosphonic acids; and primary, secondary, tertiary, and quaternary amines. Inorganic analytes include strong acid anions such as the halides, sulfate, nitrate, and phosphate; alkali metal and alkaline earth cations. Conductivity detection, especially when combined with chemical eluent suppression, provides excellent sensitivity and selectivity for numerous ionic species, both organic and inorganic.

The CD20 Conductivity Detector is housed in a Dionex DX500 enclosure. The detector is designed to be stacked on top of other DX500 units to a recommended maximum height of four units.

Specifications

Electrical

Main Power                              85 to 270 Vac, 47/63 Hz; 40 W Max, 25 W typical. The CD20 power supply is auto-sensing and no voltage adjustment is required.

Fuse                                        Two 3.15 amp slow-blow IEC 127 fuses (P/N 954745).

Analog Output                           User-selectable full-scale Output of 10, 100, or 1000 mV.

Environmental

Operating Temperature               4 °C to 40 °C (40 °F to 104 °F)

Operating Humidity                     5 to 95% relative humidity (non-condensing)

Physical

Dimensions                              22.5 cm W x 17.0 cm H x 42.0 cm D

                                               (8.8 in W x 6.6 in H x 16.4 in D)

                                               6 cm (2.4 in) clearance required behind detector.

Weight                                     8.2 kg (18 lb)

Display and Keypad

Display                                     A Power-Up screen and seven basic User-Interface screens for method generation and controlo The CD20 Diagnostics Program adds eight diagnostic screens. The display is liquid crystal with adjustable backlighting

Keypad                                    26-key keypad for entering commands and numerical values for screen parameters.

Detector

Range                                       0.01 µS to 3000 µS, full scale

Temperature Compensation         0.0 to 3.0% per °C

Cell Drive                                  Variable 8 kHz square wave

Local Operation                         Front panel controls and display status of all functions

Remote Operation                     All functions controlled by PeakNet software an a Computer. Connection is via the DX LAN. Control of 4 of 7 functions is possible via TTL or Relay contacts.

Conductivity Cell

Cell Body                                 PEEK

Active Volume                           1.0 µL

Maximum Pressure                   2.0 mPa (300 psi)

Electrodes                                 316 stainless steel

SRS Power Supply

Suppiy Current                          0, 100, 300, 500 mA @ 1.5 to 7.5 V.

Over-Voltage Alarm                    8.5 V

Over-Temperature Alarm             40 °C

DS3 Detection Stabilizer

Operating Temperature               25 °C to 40 °C (50 °F to 104 °F)

Warm-up Time                          10 minutes (typical)

Under/Over Temperature             Not Ready message displayed when not at set temperature

Alarms

AD20 Absorbance Detector

The AD20 Absorbance Detector is a dual-beam, variable wavelength photometer. Full spectral capability is provided by two light sources: a deuterium lamp for ultraviolet detection and a tungsten lamp for visible wavelength operation. The AD20 features programmable wavelength selection and automatic calibration for precision, reproducibility, and ease-of use. The AD20 is designed for use with a variety of standard bore and microbore flow cells.

The AD20 can be controlled locally from the front panel, or from a remote host computer via the optional Dionex DX LAN interface and PeakNet Software.

Specifications

Electrical

Main Power                               90 to 265 Vac, 47/63 Hz; 150 W Max, 100 W typical. The power supply is auto-sensing and requires no voltage adjustment.

Fuse                                         Two 3.15 amp fast-blow IEC127 fuses (1)/N 954745)

Analog Output                            User-selectable full-scale output of 10, 100, or 1000 mV

Environmental

Operating Temperature               10 °C to 40 °C (50 °F to 104 °F)

Operating Humidity                     5 to 95% relative humidity (non-condensing)

Physical

Dimensions                               22.5 cm W x 33.5 cm H x 42.0 cm D

                                               (8.8 in W x 13.1 in H x 16.4 in D)

                                               6 cm (2.4 in) clearance required behind the detector

Weight                                      13.6 kg (30 lbs)

Display and Keypad

Display                                      Liquid crystal display with adjustable backlighting

Keypad                                     26 buttons for entering commands and numerical values for screen parameters

Detector

Optical System                          Dual-beam, fiber-optic beamsplitter and concave holographic diffraction grating

Light Sources                            Deuterium lamp (30 W) for ultraviolet spectrum analysis; tungsten lamp (10 W) for visible spectrum analysis

Wavelength Range                     190 to 800 nm variable; continuous in 1 nm steps

Wavelength Accuracy                 ± 1 nm

Bandwidth                                8 nm

Absorbance                               Discrete settings of 0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1,

Range                                       0.2, 0.5, 1.0, and 2.0 AU

Autozero Capability                    2 AU

Autozero Accuracy                    ± 100 µAU

Noise                                                    < 10 µAU peak-to-peak at 254 nm, 2-second rise time, flowing deionized water

Drift                                           < 100 µAU/hour (after warm-up)

                                               < 100 µAUPC (alter warm-up)

Filter Rise Time                          Discrete settings of 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, or 10.0        seconds

Analog Output Range                 Discrete settings of 0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1,     0.2, 0.5, 1.0, and 2.0 AUFS

Local Operation                          Front panel controls and display status of all functions

Remote Operation                      Four of the seven AD20 functions can be controlled via TTL         or Relay contacts

DX LAN Operation                      All functions controlled by PeakNet Software an a PC, when

(Optional)                                  connected to the AD20 via the Dionex DX LAN interface.

Flow Cell

Cell Body                                 PEEK

Volume and Optical Path            Standard bore Gell, used with 4 mm (0.016 in) columns: 9 µL

Length                                       volume, 10 mm (0.002 in) optical path length

            Narrow bore cell, used with 4 mm (0.016 in) and 2 mm (0.008 in) columns: 7.5 µL volume, 6 mm (0.002 in) optical path length

            Microbore cell, used with 2 mm (0.008 in) columns: 2.5 µL volume, 3 mm (0.01 in) optical path length

Maximum Operating                   1.38 mPa (200 psi) with a heat exchanger; 3.45 mPa (500 psi)

Pressure                                   without a heat exchanger

Chemical Compatibility               The use of a base stronger than 0.1 M is not recommended, as

                                               it will etch the silica windows.

Heat Exchanger

Coil for 2 mm Columns              Volume of 20 µL; dispersion of 2.2 µL at 1.0 mL/min

Coil for 4 mm Columns               Volume of 60 µL; dispersion of 5.3 µL at 1.0 mL/min