Preamp Modules 31028698 Operation and Maintenance Manual, 70
Contents
1. 2 2 2 Automatic or Fixed Temperature Compensator Connections ATTENTION For automatic temperature compensation a specific temperature compensator must be used with the electrode system Connect the two compensator leads to preamplifier terminals TH and TG For Meredian Combination Electrodes with integral temperature compensator these leads are the two white leads in the electrode cable For fixed temperature compensation select a resistor having a value suitable for the instrument and the solution temperature and connect it as indicated above Table 2 2 gives the resistor values at 25 C for Honeywell instruments Determine resistor values at other temperatures as follows For microprocessor based instruments see the instrument service manual for the curve Table 2 2 Temperature Compensation Resistor Values at 25 C No UDA 2182 Analyzer 31028698 31022283 TH TG 8550 ohms 2 2 3 Preamplifier to Analyzer Cable Connections Make these connections to the module and analyzer terminals in accordance with Table 2 1 and the appropriate referenced connection diagram 4 Preamplifier Modules 31028698 Operation and Maintenance October 09 Installation 38D ampon duy 344 ul pg ue uog auuog punog yupg P2907 03 saum M 5 SYym unas Iy Y Ko pune sIssbyo yan 0 parasuuoa I PAYS 066214 21909 eydi pays sagno yam aqoa winuNUK OMY ZZ Jopnpuoo g asn Y7 apop No dwsl 65286115 9Po13913 93u9Jajoy umoja 10096286115 Bposs2. figures 2 1 99 Changes were made to Figures 2 2 and 2 3 to eliminate confusion on wiring diagrams 3 10 2009 Reference to Preamplifier Modules 31026395 055908 055909 and 316529 were removed References to UDA 2182 added Figure 2 2 and 2 3 modified and Figure 1 1 and 2 4 were removed Contact address updated References Honeywell Documents The following list identifies all Honeywell documents that may be sources of reference for the material discussed in this publication Document Title ID Binder Title Binder ID Non Honeywell Documents The following list identifies select non Honeywell documents that may be sources of reference for the material discussed in this publication Title Author Publisher ID ISDN Contacts The following list identifies important contacts within Honeywell Organization Telephone Address Honeywell TAC 1 800 423 9883 Voice 512 Virginia Drive Fort Washington PA 19038 October 09 Preamplifier Modules 31028698 Operation and Maintenance iii 1 3 Contents INTRODUCTION coincidido riada dates 1 O O ON 1 127 Sped Acatl ons ir rd ION 2 Model siii sii It di a aa IA E Ea dedo Ets 2 A O ONO 2 Wele nn BAG BINAN wiee Ue IN GNG ds ad BA BINABA HAR GA an AD ven ona oe 2 Mounting A NANANA 2 Material ganienn aaa O O ADA NGINIG DANE ia 2 Electrical Classi ti Caton in na anG INA fares IDA MAG NANG IAN ALO AT Ta UB BNG 2 OPEN A 2 INSTALLATION aaa AA NGABA ANAN KNA AA 3 2l MOUNTING i a A
3. AN 3 2 2 Wiring CONMECUONS ives A NON 3 MAINTENANCE cuco pe a cade 7 3k Clean A O OOO 7 3 2 Preamplifier Parts and Installation o ooonccionnnnnnncnnonnnonanannnnnrononnonanonononncnancnn crono ieies 7 Preamplifier Modules 31028698 Operation and Maintenance October 09 Tables Table 2 1 Preamplifier Module Preamplifier Selection Guide ooonoccnccnocanononononancnncnononananaconna nono cono cnncnnccnnos 4 Table 2 2 Temperature Compensation Resistor Values at 25 C c cccccccssssessesssesseessseesesseesessesseeseesseeseeseess 4 Figures Figure 2 1 Preamplifier Module Mounting DIMENSIONS ooconocononcnoncnnncnnnonncanncnnccnnc nana nononnn oracion roca ncnncnnann nos 3 Figure 2 2 Wiring diagram for HPW7000 pH System Using 21028698 Pre Amp to UDA 2182 Analyzer with Pre A mp Input Catd iis kaa KAANAK a S aea EE nia 5 Figure 2 3 pH Electrode Connections for Mountings Using 31028698 Preamplifier Module 6 Figure 3 1 Preparing Preamplifier for Replacement in Module ooocononiconocanoncnoncnncnonananananonnccnnoranocnncnnccnnos 7 October 09 Preamplifier Modules 31028698 Operation and Maintenance v Introduction 1 Introduction 1 1 Description The Preamplifier Module 31028698 permits the use of Honeywell analyzers for pH with any Honeywell electrode mounting They constitute the preamplifier portion of the measuring system serving as an interface between the pH analyzer and conventional electrodes and mou
4. Honeywell Preamplifier Module 31028698 Operation and Maintenance Manual 70 82 25 36 Rev 3 October 2009 Copyright Notices and Trademarks Printed in U S A O Copyright 1999 by Honeywell Inc Revision 3 October 2009 While this information is presented in good faith and believed to be accurate Honeywell disclaims the implied warranties of merchantability and fitness for a particular purpose and makes no express warranties except as may be stated in its written agreement with and for its customer In no event is Honeywell liable to anyone for any indirect special or consequential damages The information and specifications in this document are subject to change without notice Honeywell Process Solutions 512 Virginia Drive Fort Washington PA 19034 www honeywell com ps 602 313 5669 Preamplifier Modules 31028698 Operation and Maintenance October 09 About This Document Abstract This document is intended to support the installation operation and maintenance of the 31028698 Preamplifier Module Revision Notes The following list provides notes concerning all revisions of this document Rev ID Date Notes 0 2 87 This document is the initial Honeywell release of the L amp N manual p n 177773 Rev J1 No significant changes the format has been changed to reflect the Honeywell layout 1 8 97 Edits were made to Figures 2 2 2 3 and 2 4 to add product model numbers to the headings in the tables found in these
5. a buunsbaw OSELLLIE NY SALON pspog purua spundi9 aM M D 4ISWYHI MOTA 0004 MAH uonssuuog II Pla 3009 40109 apeoloey buunspay apoag38 3 92491040 apoJ339 3 Jajuno osues sinzniedway punog sissbyo van 03 pjalys 3 909 29uu09 yd ra H4 4 ofl TENT wan dusy 9Jd 0 mf er LINO Y ore gt ogl uonpubisag Purua juswrsu S papa indy duny 8Jd yan ampon duy id BE9BZOLE to UDA 2182 Analyzer with Pre Amp Input Card Figure 2 2 Wiring diagram for HPW7000 pH System Using 21028698 Pre Amp Preamplifier Modules 31028698 Operation and Maintenance October 09 Preamplifier Modules 31028698 Operation and Maintenance Preamplifier UDA 2192 pH Analyzer with Module Pre Amp Input Card v Oo o 5 o w SE al Meredian Combination Instrument Terminal Designations Instrument Preamp Note 1 Terminal UDA 2182 NG Coment NOTES 1 If separate electrodes are used connect reference electrode lead to REF terminal and connect temperature compensator leads to TH and TG terminals 2 Use 22 AWG or larger 5 conductor cable Figure 2 3 pH Electrode Connections for Mountings Using 31028698 Preamplifier Module 6 Preamplifier Modules 31028698 Operation and Maintenance October 09 Maintenance 3 Maintenance 3 1 Cleaning The special terminal block is made from an extremely high resistance material Oils and salts from per
6. iagram October 09 Preamplifier Modules 31028698 Operation and Maintenance 3 Preamplifier Modules 31028698 Operation and Maintenance 2 2 1 Electrode Cable Connections Do not remove the metal cover from the special terminal block located in the upper section of the module case until ready to make connections When it is removed do not touch the terminal block and do not handle the inner insulation of the shielded electrode lead These parts are made of a special very high resistance insulating material The oils or salts from bare hands will form leakage paths on the surface of this material which may cause erroneous readings If any of this insulation material becomes contaminated by handling refer to Section 3 1 Connect the shield of a combination pH electrode to the REF terminal on the module terminal board being very careful that the cable shield is not in contact with the shield can or any other part of the terminal board compartment Connect the inside conductor of the shielded cable to the lower screw on the metal terminal strip E on the special terminal block avoid touching the plastic block with bare fingers Replace the metal cover on this block Table 2 1 Preamplifier Module Preamplifier Selection Guide Preamplifier Module Used with the Following Instruments 31028698 UDA 2182 For replacement preamplifier not including the NEMA 4 box order P N 31022283 See Installation Wiring Diagram in Figure 2 3 for pH
7. ntings The input to the preamplifier module is the low level high impedance emf from the electrode system connected to the module using shielded low loss cable The module output is a high level low impedance signal easily carried long distances over ordinary cable The module contains the Honeywell Electrode emf Preamplifier potted and sealed against humidity in a stainless steel case on which is mounted a terminal board for the output cable temperature compensator and reference electrode connections The measuring electrode lead an integral part of the preamplifier is connected to a special low loss electrode terminal block at which the shielded measuring electrode cable is terminated The preamplifier module is housed in a weatherproof corrosion resistant case fiberglass reinforced plastic It requires no line voltage supply The dc operating voltages are supplied from the receiving instrument through the output cable October 09 Preamplifier Modules 31028698 Operation and Maintenance 1 Preamplifier Modules 31028698 Operation and Maintenance 1 2 Specifications Models 31028698 for use with UDA 2182 pH Analyzer with Internal Pre Amp Input Card Dimensions Length 7 7 16 189 mm Width 5 7 16 138 mm Height 4 13 16 122 mm Weight Approx 3 lb 1 36 kg Mounting Surface Four 5 16 8 mm mounting holes Material Molded fiberglass with gasketed lid Electrical Classification NEMA 4X corrosi
8. on resistant watertight Openings Two 1 1 8 29 mm dia holes for 34 conduit one on each end 2 Preamplifier Modules 31028698 Operation and Maintenance October 09 Installation 2 Installation 2 1 Mounting Locate the module as close as possible to the electrode site The module is designed for surface mounting Dimensions required for mounting the case are given in Figure 2 1 Four 5 16 diameter holes are provided in the case flanges for mounting screws or bolts Captivate screws secure a gasketed cover plate A 1 1 8 diameter hole in opposite sides of the case permits use of 3 4 electrical conduit To maintain NEMA 4X rating use proper conduit connectors 4 312 8 mm D a 343 1 125 29 mm dia Mounting Holes 8 mm Wire Entrance Hole for 3 4 Conduit Mtg Screw Nay 7 250 184 mm Chain Retainer 64mm for Cover 4 812 at 76 mm 122mm IB 5 437 138 mm Dimensions not to scale for clarity a n 23557 Figure 2 1 Preamplifier Module Mounting Dimensions 2 2 Wiring Connections Run input leads from the electrode mounting to an opening in the module case Observe all precautions given in the directions furnished with the electrode mounting If necessary use watertight 3 4 conduit to carry the wiring between the electrode mounting and the module For electrode connections see Table 2 1 and the appropriate referenced connection d
9. spiration form leakage paths which can cause erroneous pH readings Always keep these parts clean and dry If any of this insulation material becomes contaminated by handling wipe it clean with a lint free cloth or lens tissue moistened in isopropyl or grain alcohol If this is not effective remove the block and use water and detergent Use distilled water if tap water has high mineral content Use clean forceps or clean rubber finger cots 3 2 Preamplifier Parts and Installation The following replacement parts are available for the preamplifier module e Preamplifier 31028698 When replacing the preamplifier cut off the screw cap and prepare the shielded lead as indicated in Figure 3 1 Do not touch the inner insulation Outer Insulation and Shield Inner _ Insulation A A YA 3 4 a 1 2 1 8 p 3 16 1 16 12 7 3 2mm 4 8 1 6mm Cut Off i Dotted Portion ja 3 1 2 min 88 9mm Ta J a n 23561 Figure 3 1 Preparing Preamplifier for Replacement in Module October 09 Preamplifier Modules 31028698 Operation and Maintenance 7 Honeywell Honeywell Process Solutions 512 Virginia Drive Fort Washington PA 19034 70 82 25 36 October 09 Printed in USA www honeywell com ps
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