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Waters 2432 Overview And Maintenance Manual

Conductivity detector
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2432 Conductivity Detector
Overview and Maintenance Guide
715004730
Copyright © Waters Corporation 2023
Version 02 (previously released as Revision B)
All rights reserved

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Summary of Contents for Waters 2432

  • Page 1 2432 Conductivity Detector Overview and Maintenance Guide 715004730 Copyright © Waters Corporation 2023 Version 02 (previously released as Revision B) All rights reserved...
  • Page 2 This document is believed to be complete and accurate at the time of publication. In no event shall Waters Corporation be liable for incidental or consequential damages in connection with, or arising from, its use. For the most recent revision of this document, consult the Waters website (www.waters.com).
  • Page 3 For compliance with Waste Electrical and Electronic Equipment legislation, contact Waters Corporation for the correct disposal and recycling instructions For indoor use only August 11, 2023, 715004730 Ver. 02 (previously released as Revision B)
  • Page 4 Conductivity Detector. Instrument intended use The 2432 Conductivity Detector is intended to measure the ionic strength of a solution with a pair of inert electrodes. The resulting chromatograms measure concentrations of anions and cations. Typical applications for this instrument are in water chemistry and analysis for pollution, and the sugar and salt content in food.
  • Page 5 Do not report these data until you are certain that the instrument performs satisfactorily. Safety considerations Some reagents and samples used with Waters instruments and devices can pose chemical, biological, or radiological hazards (or any combination thereof). You must know the potentially hazardous effects of all substances you work with.
  • Page 6 interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Electrical power safety notice Do not position the device so that it is difficult to disconnect the power cord. Equipment misuse notice If equipment is used in a manner not specified by its manufacturer, the protection provided by the equipment may be impaired.
  • Page 7 Contacting Waters Contact Waters with technical questions regarding the use, transportation, removal, or disposal of any Waters product. You can reach us through the Internet, telephone, fax, or conventional mail. Contact method Information www.waters.com The Waters website includes contact information for Waters locations worldwide.
  • Page 8 Contact method Information From the USA or Canada, phone 800-252-4752 or fax 508-872-1990. August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page viii...
  • Page 9 EMC considerations..........................vi Canada spectrum management emissions notice................vi ISM classification: ISM group 1 class B..................vi Updated information..........................vii Customer comments..........................vii Contacting Waters..........................vii 1 Overview........................12 1.1 System configurations........................12 1.2 Major components..........................15 1.3 Theory of operation........................17 1.3.1 Flow cell design........................17 1.3.2 Conductance.........................17...
  • Page 10 2 Preparation and operation..................19 2.1 Stacking system modules with interlocking features..............19 2.2 Connecting the tubing........................20 2.3 Installing the multi-detector drip tray....................22 2.4 Making the USB connection......................22 2.5 Connecting signal cables....................... 22 2.6 Input/output signal connectors....................... 24 2.7 Connecting to the electricity source....................
  • Page 11 A.5 Warnings that apply to all Waters instruments and devices............36 A.6 Warnings that address the replacement of fuses................40 A.7 Electrical symbols.......................... 42 A.8 Handling symbols...........................43 B Specifications......................45 B.1 Physical specifications........................45 B.2 Environmental specifications......................45 B.3 Electrical specifications........................45 B.4 Operational specifications......................46 B.5 Flow cell specifications........................
  • Page 12 1 Overview The 2432 Conductivity Detector (2432) detects and measures anions and cations present in column eluent. Review the following subjects for general instrument information: • System configurations (Page 12) • Major components (Page 15) • Theory of operation (Page 17) 1.1 System configurations...
  • Page 13 Figure 1–1: ACQUITY Arc or Arc HPLC System configuration, example Detector Column compartment Solvent manager Sample manager Solvent bottle tray August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 13...
  • Page 14 Figure 1–2: ACQUITY UPLC H-Class System configuration, example Detector Column compartment Solvent manager Sample manager Column compartment Solvent bottle tray August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 14...
  • Page 15 Figure 1–3: Alliance HPLC System configuration, example Detector Column compartment Separations module Solvent bottle tray 1.2 Major components When you open the detector's door, the only visible components are two fittings where tubing is attached and routed in and out of the detector. The rear of the detector has a USB port, an I/O signal connector, and an inlet for ac power.
  • Page 16 Figure 1–4: Detector with door open Eluent flow out Eluent flow in Figure 1–5: Detector rear Signal cable USB port August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 16...
  • Page 17 Power inlet 1.3 Theory of operation Review the following subjects for detailed information: • Flow cell design (Page 17) • Conductance (Page 17) • Temperature (Page 17) • Autozero (Page 18) 1.3.1 Flow cell design The flow cell has an internal volume of 0.8 µL, and the microprocessor controls conductivity measurement.
  • Page 18 See: For instructions on setting cell temperature and the temperature coefficient, see the online Help. 1.3.4 Autozero You can eliminate the eluent’s contribution to conductivity using the Autozero function. When you select Autozero, the detector measures the eluent conductivity and assigns it a value of zero. Thus, any sample ions appear as positive or negative measurements, relative to a zero baseline.
  • Page 19 2 Preparation and operation Review the procedures necessary to prepare, set up, and safely operate the instrument. 2.1 Stacking system modules with interlocking features This procedure applies to system modules equipped with interlocking features. Important: For the order in which to stack modules, contact your field service engineer. Notice: To avoid overheating the module, do not block the air vent.
  • Page 20 Figure 2–1: Aligning pins with slots Alignment pins Alignment slots 2. Lower the front of the module you are adding so that its front alignment pin rests in the front alignment slot on the previously added module. 3. Repeat steps 1 and 2 for the remaining system modules. 2.2 Connecting the tubing To connect the tubing to the detector: 1.
  • Page 21 Tubing from the column manager 2. Direct the tubing from the fixture labeled "OUT" to a waste container. Requirement: Connect the longer tube with the larger ID to "OUT". Requirement: Ensure that the waste container is placed lower than, or at the same level as, the detector.
  • Page 22 Tubing directed to waste 2.3 Installing the multi-detector drip tray Requirement: If your system has more than one detector, you must install the multi-detector drip tray. See also: For information on how to install the multi-detector drip tray, refer to the instructions included in the multi-detector drip tray kit.
  • Page 23 Required tools and materials • 9/32-inch nut driver • Flat-blade screwdriver To connect the cables: 1. Insert the connector into the connector port on the module's rear panel, if it is not already installed. Figure 2–2: Inserting the connector into the connector port Connector port Connector 2.
  • Page 24 Signal cable 3. Fit the grounding cable's fork terminal on the rear-panel grounding stud and secure the terminal using the locking nut. Note: Use the 9/32-inch nut driver to tighten the locking nut until the terminal does not move. Figure 2–4: Grounding cable fork terminal on the grounding stud Fork terminal Locking nut Grounding stud...
  • Page 25 2.8 Adding the detector to the system The 2432 Conductivity Detector is controlled through a USB cable. Because other modules use an Ethernet connection, when you add a 2432 Conductivity Detector to a system, you must reconfigure the system in Empower software.
  • Page 26 Properties. Result: The Chromatographic System dialog box appears. 11. On the Configuration tab, drag the 2432 conductivity detector name from the Available Components pane to the System Configuration pane. Tip: The devices in the System Configuration pane can appear in any order.
  • Page 27 See also: Console online Help 2.10 Installation recommendations for fittings Warning: To avoid personal contamination with biologically hazardous or toxic compounds, wear clean, chemical-resistant, powder-free gloves when performing this procedure. Follow these general recommendations when installing fittings. • To prevent band spreading, ensure that the tubing bottoms in its fitting before you tighten the compression screw.
  • Page 28 The maintenance frequencies specified apply to modules that normally receive moderate use. Note: For applicable system cleaning protocols, see Controlling Contamination in LC/MS Systems (715001307) on the Waters website (www.waters.com). Table 3–1: Detector maintenance schedules Procedure Frequency Measuring the cell constant (Page 26)
  • Page 29 Contact Waters Technical Service for assistance. Note: The module contains two fuses, one you can replace using the procedure below and one you cannot access. If changing the accessible fuse does not restore power, contact Waters Technical Service. Warning:...
  • Page 30 To avoid damaging system modules, before replacing an opened fuse, determine the cause of the fuse's failure. It is possible that a serious underlying problem requires attention. Contact Waters Technical Service for assistance. Required tools and materials Properly rated replacement fuses The module requires two 100 to 240 Vac, 50 to 60-Hz, F 3.15-A, 250-V (fast-blow), 5 ×...
  • Page 31 3.5 Spare parts To ensure that your system operates as designed, use only Waters Quality Parts. Visit www.waters.com/wqp for information about Waters Quality Parts, including how to order them. 3.6 Cleaning the exterior of the equipment Warning: To avoid electric shock: •...
  • Page 32 Figure 3–2: Air exhaust vent on rear of module Air exhaust vent August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 32...
  • Page 33 Heed all warnings when you install, repair, or operate any Waters instrument or device. Waters accepts no liability in cases of injury or property damage resulting from the failure of individuals to comply with any safety precaution when installing, repairing, or operating any of its instruments or devices.
  • Page 34 (Risk of high-pressure gas release.) A.1.1 Specific warnings A.1.1.1 Burst warning This warning applies to Waters instruments and devices fitted with nonmetallic tubing. Warning: To avoid injury from bursting, nonmetallic tubing, heed these precautions when working in the vicinity of such tubing when it is pressurized: •...
  • Page 35 A.1.1.2 Biohazard warning The following warning applies to Waters instruments and devices that can process biologically hazardous materials. Biologically hazardous materials are substances that contain biological agents capable of producing harmful effects in humans. Warning: To avoid infection from blood-borne pathogens, inactivated microorganisms, and other biological materials, assume that all biological fluids that you handle are infectious.
  • Page 36 Use eye protection when performing this procedure. Requirement: Wear clean, chemical-resistant, powder-free gloves when performing this procedure. A.5 Warnings that apply to all Waters instruments and devices When operating this device, follow standard quality-control procedures and the equipment guidelines in this section.
  • Page 37 Advertencia: Cualquier cambio o modificación efectuado en esta unidad que no haya sido expresamente aprobado por la parte responsable del cumplimiento puede anular la autorización del usuario para utilizar el equipo. 警告： 未经有关法规认证部门明确允许对本设备进行的改变或改装，可能会使使用者 丧失操作该设备的合法性。 警告： 未經有關法規認證部門允許對本設備進行的改變或修改,可能會使使用者喪失操 作該設備的權利。 경고 규정 준수를 책임지는 당사자의 명백한 승인 없이 이 장치를 개조 또는 변경할 경우, 이...
  • Page 38 Warnung: Bei der Arbeit mit Polymerschläuchen unter Druck ist besondere Vorsicht angebracht: • In der Nähe von unter Druck stehenden Polymerschläuchen stets eine Schutzbrille tragen. • Alle offenen Flammen in der Nähe löschen. • Keine Schläuche verwenden, die stark geknickt oder überbeansprucht sind. •...
  • Page 39 • 近くにある火を消してください。 • 著しく変形した、または折れ曲がったチューブは使用しないでください。 • 非金属チューブには、テトラヒドロフラン (THF) や高濃度の硝酸または硫酸など を流さないでください。 • 塩化メチレンやジメチルスルホキシドは、非金属チューブの膨張を引き起こす場合 があり、その場合、チューブは極めて低い圧力で破裂します。 This warning applies to Waters instruments fitted with nonmetallic tubing or operated with flammable solvents. August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 39...
  • Page 40 Warning: The user shall be made aware that if the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Avertissement : L’utilisateur doit être informé que si le matériel est utilisé d’une façon non spécifiée par le fabricant, la protection assurée par le matériel risque d’être défectueuse.
  • Page 41 Avertissement : Pour éviter tout risque d’incendie, remplacez toujours les fusibles par d’autres du type et de la puissance indiqués sur le panneau à proximité du couvercle de la boîte à fusible de l’instrument. Warnung: Zum Schutz gegen Feuer die Sicherungen nur mit Sicherungen ersetzen, deren Typ und Nennwert auf den Tafeln neben den Sicherungsabdeckungen des Geräts gedruckt sind.
  • Page 42 Advertencia: Para evitar incendios, sustituir los fusibles por otros del tipo y características indicados en la sección "Sustituir fusibles" del capítulo Procedimientos de mantenimiento. 警告： 为了避免火灾，应更换“维护步骤”一章的“更换保险丝”一节中介绍的相同类型和 规格的保险丝。 警告： 為了避免火災，更換保險絲時，應使用「維護步驟」章節中「更換保險絲」所 指定之相同類型與規格的保險絲。 화재의 위험을 막으려면 유지관리 절차 단원의 “퓨즈 교체” 절에 설명된 것과 동일 경고...
  • Page 43 Symbol Description Indicates that the device or assembly is susceptible to damage from electrostatic discharge (ESD) A.8 Handling symbols The following handling symbols and their associated statements can appear on labels affixed to the packaging in which instruments, devices, and component parts are shipped. Symbol Description Keep upright!
  • Page 44 Symbol Description Temperature limitation August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 44...
  • Page 45 B Specifications This appendix lists individual operating specifications for the detector. Note: All 2432 Conductivity Detector performance specifications are measured following a warm-up period of 30 min. B.1 Physical specifications The following table lists the physical specifications for the detector.
  • Page 46 Attribute Specification Protection class Class I Overvoltage category Pollution degree Moisture protection Normal (IPXO) Line voltages, nominal Grounded ac Power requirements 100 to 240 Vac Line frequency 50 to 60 Hz Power consumption 160 VA (nominal) Fuse ratings Two fuses: 100 to 240 Vac, 50 to 60-Hz, F 3.15-A, 250-V (fast-blow), 5 ×...
  • Page 47 Table B–3: Operational specifications: (continued) Attribute Specification Temperature control 20.0 to 50.0 °C in steps of 5 °C and Off Temperature stability ±0.1 °C Sampling rate 10 points/s Maximum backpressure 5000 kPa (50 mbar, 725 psi) a. The percent drift is relative to the base conductivity of the mobile phase in a system running non-suppressed chromatography.
  • Page 48 B.7 Wetted materials of construction The wetted path in the detector is constructed from 316 stainless steel, polychlorotrifluoroethylene (PCTFE), and PEEK. August 11, 2023, 715004730 Ver. 02 (previously released as Revision B) Page 48...