Schambeck SDS 9414I Operation Manual
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Schambeck SDS 9414I Operation Manual

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SDS 9414I HPLC Pump

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  • Page 1 SDS 9414I HPLC Pump...

  • Page 2: Table Of Contents

    SDS 9414i HPLC Pump TABLE OF CONTENTS 1. Standard Accessories......................5 1.1 Stainless Steel Version............................ 5 1.2 PEEK Version ..............................5 2. Safety Instructions ......................6 2.1 General Electrical Hazards..........................6 2.2 General Precautions ............................6 3. Technical Specifications ....................7 4.
  • Page 3 SDS 9414i HPLC Pump 9.2 Exchange of Pump Head..........................31 9.3 Pump Head Assembly ........................... 32 9.3.1 Piston Back Flushing ..........................33 9.3.2 Change of Piston Ring..........................33 9.3.3 Replacing the Check Valves ........................33 9.3.4 Cleaning the Valve Cartridges ........................ 33 9.4 Software Initialization.............................
  • Page 4 SDS 9414i HPLC Pump PICTURE INDEX Picture 1: Working Principle ............................8 Picture 2: Front Side View............................10 Picture 3: Pump Components ..........................11 Picture 4: Rear Panel .............................. 12 Picture 5: Status Display - Constant Flow Mode..................... 24 Picture 6: Status Display - Constant Pressure Mode....................25 Picture 7: Pump Head Assembly ..........................

  • Page 5: Standard Accessories

    SDS 9414i HPLC Pump 1. STANDARD ACCESSORIES 1.1 STAINLESS STEEL VERSION § 1 piece HPLC Pump SDS 9414I § 1 piece Operation Manual § 1 piece Power Cord § 2 pieces Fuses 0.5 A for 220 V; 1.0 A for 110 V §...

  • Page 6: Safety Instructions

    SDS 9414i HPLC Pump 2. SAFETY INSTRUCTIONS The manufacturer, does not warrant for any defects or damage resulting from incorrect operation and maintenance, non-observance of the manual's instructions and negligence during installation. Before putting the instrument into operation, read the manual carefully and should there be any further questions, please get in contact with your supplier.

  • Page 7: Technical Specifications

    SDS 9414i HPLC Pump 3. TECHNICAL SPECIFICATIONS Flow Rate Micro: 0.02 – 4.00 ml/min Analytical: 0.05 – 9.95 ml/min Semi-Preparative: 0.20 – 40.0 ml/min Pump Head Material: Stainless Steel, PEEK, or Titanium Pulsation: less than 1.0 % Flow Accuracy: less than 0.1 % Flow Precision: less than 1.0 %...

  • Page 8: General Description

    4. GENERAL DESCRIPTION 4.1 WORKING PRINCIPLE The HPLC Pump SDS 9414I is a dual piston solvent delivery system. The mechanism is designed with short piston stroke technology and only two check valves. This results in the low pulsation of a dual piston pump combined with the reliability of a single piston pump.
  • Page 9 SDS 9414i HPLC Pump While the delivery piston pushed the solvent volume out, the compensation piston, located on the pressure side, collects half of the volume. During return movement of the delivery piston, the collected volume is pumped from the compensation. The microprocessor controlled speed regulation leads to a highly stable speed of the D.C.

  • Page 10: Front Side View

    SDS 9414i HPLC Pump 4.2 FRONT SIDE VIEW All parts necessary for the operation are positioned on the front side of the instrument. Picture 2: Front Side View 1 2x20 Character LCD 2 Keyboard 3 Status Indicator Lights 4 Relief Valve 5 Pump Head Version: 2.2 (July 2007)

  • Page 11: Pump Components

    SDS 9414i HPLC Pump 4.2.1 PUMP COMPONENTS Picture 3: Pump Components 1 Suction valve housing (connect from eluent reservoir) 2 Pump head (letter on pump head denotes type: a = analytical; m = micro; p = preparative) 3 Mounting screws (4) 4 Pressure valve housing 5 Connecting capillary –...

  • Page 12: Rear Panel View

    SDS 9414i HPLC Pump 4.3 REAR PANEL VIEW Picture 4: Rear Panel 1 Main Switch 2 Power Cord Plug 3 Fuse Carrier w. Voltage Selector 4 REMOTE CONTROL connector (15 pins) 5 RS-232 Connector 6 PRESSURE OUT Connector Version: 2.2 (July 2007)

  • Page 13: Function Connectors

    SDS 9414i HPLC Pump 4.4 FUNCTION CONNECTORS 4.4.1 REMOTE CONTROL (4) FUNCTION EXTERN - ERROR N.C. Internal use Internal use START /STOP RUN RELAY COM ERROR COM EXTERN + RUN RELAY N.C. INSTALLED-J HIGH PRESSURE J. REMOTE J. RUN RELAY N.O.

  • Page 14: Pressure Connector (6)

    SDS 9414i HPLC Pump 4.4.3 PRESSURE CONNECTOR (6) FUNCTION Pressure - Pressure + (10 mV / 1 MPa) Version: 2.2 (July 2007) Page: 14 / 45...

  • Page 15: Menu Description

    SDS 9414i HPLC Pump 5. MENU DESCRIPTION 5.1 OVERVIEW The menu dialog can be activated if the pump is in the standby mode; indicated by the STOP LED. To activate, push the [PROG] key. The program menu can be stepped through by using the [PROG] key.

  • Page 16: Maximum Flow

    SDS 9414i HPLC Pump By pushing the [PROG] key this value will be fixed into the memory and the next program step is called up. 5.2.2 MAXIMUM FLOW By pushing the [PROG] key the programming dialog is switched to the next menu. The display...

  • Page 17: Compressibility

    SDS 9414i HPLC Pump These 40 MPa (400 bar or 6000 PSI) are indicating the pressure of the pump. The maximum pressure level should be set to a level which ensures to avoid any damage of the whole HPLC-system if a blockage of any part may occur. Always the weakest part has to be used for selecting the correct level.

  • Page 18: Analyses Time

    SDS 9414i HPLC Pump 5.6 ANALYSES TIME By pushing the [PROG] key the programming dialog is switched to the next menu. The display shows: As the pump is able to count times, the requested run time can be selected in this step. If the time is set to 0:0 the pump will start to run after pushing the [START] key and will stay under this condition until the [STOP] key will be pushed.

  • Page 19: Stop Delay Time

    SDS 9414i HPLC Pump The HPLC pump SDS 9414I has a built-in start delay time function which protects and therefore prolongs column's durability as a careful increase of pressure onto the column is possible. During the start delay time operation, the display shows the symbol “^” right before the RT.

  • Page 20: Instrument Setup

    SDS 9414i HPLC Pump 6. INSTRUMENT SETUP 6.1 CHECK VOLTAGE Before connecting the pump to the mains, check the voltage shown on the type plate on the rear of the instrument. This voltage should be identical with the voltage of the existing power source.
  • Page 21 SDS 9414i HPLC Pump function (pressing the up and down key at the same time) with approx. 20 ml solvent. Close the relief valve (clockwise) and the pump is ready for operation. The priming of the pump with the help of a syringe as described above will only work as long as the whole system is closed, e.g.

  • Page 22: Instrument Operation

    The SDS 9414I is in STANDBY when its STOP LED is on. The pump is set to STANDBY when the [STOP] key is pressed. When the instrument is in RUN, the START LED is on. The SDS 9414I is set to RUN when the [START] key is pressed.
  • Page 23 SDS 9414i HPLC Pump MINIMUM PRESSURE ERROR The MINIMUM PRESSURE ERROR indicates that the pressure dropped below the preselected minimum pressure level for more than 1 minute. If there is no increase above the preset level during this time, the pump will stop to run and the display will show: Beside this optical signal an error message is activated through the interface to the controller, if this one is connected.

  • Page 24: Operation Modes

    SDS 9414i HPLC Pump 7.2 OPERATION MODES The SDS 9414I can be operated in 2 different modes: Constant Flow and Constant Pressure. In Constant Pressure mode the pump keeps the pressure constant by adjusting the flow. 7.2.1 CONSTANT FLOW MODE In Constant Flow mode, the pump delivers with a constant flow rate.

  • Page 25: Constant Pressure Mode

    SDS 9414i HPLC Pump 7.2.2 CONSTANT PRESSURE MODE If this mode is selected the pump delivers the volume at a constant pressure during a set period of time. The constant pressure mode can be selected by setting the value for constant flow during programming to 0.0 ml/min.

  • Page 26: Power Down Feature

    SDS 9414i HPLC Pump 7.3 POWER DOWN FEATURE In case of power failure, the pump software can react differently. If the power failure lasts less than one minute, the pump will start automatically again, as soon as the power is reconnected.

  • Page 27: Compressibility

    SDS 9414i HPLC Pump 8. COMPRESSIBILITY A general problem for constant flow delivery with piston pumps is the compressibility of the solvents under pressure. Any liquid shows a specific volume elasticity. If the liquid is influenced by pressure changes ∆p, the volume will change by ∆V. The volume V will become the same as before, if the pressure will be reduced to the original value again.
  • Page 28 SDS 9414i HPLC Pump A to B: suction of liquid during pressure p1 B to C: compressing the liquid from p1 to p2 C to D: delivery against pressure p2 D to A: changing from delivery to suction The compressibility will effect the constant of the liquid delivery depending on the pressure. To overcome this problem, the S 2100 is using a calculation program to correct the pressure depending change of the flow rate.
  • Page 29 SDS 9414i HPLC Pump For solvent mixtures of different organic solvents, the constant can be calculated by adding the constants of the different solvents in relation to their percentage in the mixture. For example: 50% H O, 20% Methanol, 30% Acetonitril F = 0.5 F(H...

  • Page 30: Service & Maintenance

    SDS 9414i HPLC Pump 9. SERVICE & MAINTENANCE The need of maintenance is limited to the mechanic of the pump. It is recommended to oil all moving parts, as bearing and slide plates with sewing machine oil. 9.1 TROUBLESHOOTING Problem...

  • Page 31: Exchange Of Pump Head

    SDS 9414i HPLC Pump 9.2 EXCHANGE OF PUMP HEAD § disconnect the capillary tube (6) between the pump head (2) and the relief valve (7) § remove the solvent suction tubing (connected to 1) loosen the four mounting screws (3) and remove the pump head §...

  • Page 32: Pump Head Assembly

    SDS 9414i HPLC Pump 9.3 PUMP HEAD ASSEMBLY The following diagram shows all the components of the dismantled pump head: Picture 7: Pump Head Assembly Pump head body Ferrule 1/8" Piston sealing ring Thrust bolt Piston guide with piston back flushing...

  • Page 33: Piston Back Flushing

    SDS 9414i HPLC Pump 9.3.1 PISTON BACK FLUSHING When using saliferous eluents, a growth of salt crystals is possible behind the piston ring on the sapphire piston. Under unfavorable working conditions, these salt crystals can lead to a higher wearing of the piston ring.

  • Page 34: Picture 8: Check Valve Assembly

    SDS 9414i HPLC Pump the fully assembled cartridge. The more dependable method is to dismantle the valve for cleaning. ATTENTION: In order to avoid any loss of valve parts, it is recommended to use a small container for the process is dismantling.

  • Page 35: Picture 9: Check Valve Cross-Cut

    SDS 9414i HPLC Pump Picture 9: Check Valve Cross-Cut 1 PEEK sealing ring 2 Valve bearing with ring marker 3 Sapphire seat 4 Ruby ball 5 Check guide made of ceramic Version: 2.2 (July 2007) Page: 35 / 45...

  • Page 36: Software Initialization

    SDS 9414i HPLC Pump 9.4 SOFTWARE INITIALIZATION § Turn off the main switch § push the [STOP] key and turn the main switch on again. Keep the [STOP] key pressed until the display indicates that the power is on again. The display shows: Normally, keep the Network Address at “1”.
  • Page 37 SDS 9414i HPLC Pump § The Head Constant is Press the [PROG] key to switch to the next menu screen. § § The Head Parameter is § Press the [PROG] key to switch to the next menu screen. § The Head Span is §...
  • Page 38 SDS 9414i HPLC Pump § The Head Parameter is Press the [PROG] key to switch to the next menu screen. § § The Head Span is § Press the [PROG] key to switch to the next menu screen. § This display marks the end of the instrument parameters.

  • Page 39: Serial Control Interface

    SDS 9414i HPLC Pump 10. SERIAL CONTROL INTERFACE The RS 232 Serial Control Interface allows the remote control of the HPLC pump by a PC. 10.1 HARDWARE The Interface (RS-232C) only requires the following 3 wires: § Common Ground (COM / GND) §...

  • Page 40: Picture 10: Checksum Formula

    SDS 9414i HPLC Pump After the “*” answer, the actual command is sent. The complete structure is outlined below: Byte 1 Length This states the total length of the command, including the checksum byte and its own length. Normally, all commands have a length of 6 bytes.
  • Page 41 SDS 9414i HPLC Pump In case of a wrong checksum, the pump will answer with a “?”. Otherwise, when the command is correct and understood by the pump it answers with a string: Byte 1 Length This states the total length of the answer, including the checksum byte and its own length.

  • Page 42: Command Synchronization

    SDS 9414i HPLC Pump 10.2.2 COMMAND SYNCHRONIZATION The command synchronization is used for actually using the transferred flow rate setting. The command is similar to the one described above, but only has a length of 3 bytes: The structure of the command is similar to the one described above, where the first byte is the length (“03”), the second byte the command code (“10”) and the last one a checksum (“ED”),...

  • Page 43: Spare Parts & Accessories

    SDS 9414i HPLC Pump 11. SPARE PARTS & ACCESSORIES 11.1 GENERAL SPARE PARTS Catalog No. Part 30 49 001 Li-Battery TEL/P 30 61 007 Power-Line Filter 31 02 001 Transformer 00 00 000 Pressure Sensor (electronic) 31 01 016 Motor w. Optic Decoder...

  • Page 44: Analytical, Peek

    SDS 9414i HPLC Pump Catalog No. Part 20 20 038 Pump Head, Analytical, Stainless Steel (Complete) 25 01 068 Pump Head, Analytical, Stainless Steel (Body) 25 01 048 Suction Valve Housing (Stainless Steel) 25 01 050 Pressure Valve Housing (Stainless Steel)

  • Page 45: Micro, General

    SDS 9414i HPLC Pump 11.2.7 MICRO, GENERAL Catalog No. Part 24 10 020 Sealing Ring (Gray) (Micro) 24 10 030 Sealing Ring (Yellow) (Micro) 26 01 047 Piston Guide (Micro) 24 10 021 Secondary Sealing (Micro) 26 01 048 Centering Disc (Micro)

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