Xylem wtw Alyza IQ NH4 HR Operating Manual
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Xylem wtw Alyza IQ NH4 HR Operating Manual

Xylem wtw Alyza IQ NH4 HR Operating Manual

1-channel measuring system for online determination of ammonia in aqueous samples
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OPERATING MANUAL
ba77276e02 03/2025
Alyza IQ NH4 HR
1-CHANNEL MEASURING SYSTEM FOR ONLINE DETERMINATION
OF AMMONIA IN AQUEOUS SAMPLES

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Summary of Contents for Xylem wtw Alyza IQ NH4 HR

  • Page 1 OPERATING MANUAL ba77276e02 03/2025 Alyza IQ NH4 HR 1-CHANNEL MEASURING SYSTEM FOR ONLINE DETERMINATION OF AMMONIA IN AQUEOUS SAMPLES...
  • Page 2 Alyza IQ NH4 HR © 2025 Xylem Analytics Germany GmbH Copyright Printed in Germany. ba77276e02 03/2025...

  • Page 3: Table Of Contents

    Alyza IQ NH4 HR List of contents List of contents Overview ........7 How to use this component operating manual .
  • Page 4 List of contents Alyza IQ NH4 HR 3.3.7 Installation on a wall ....... 41 3.3.8 Removing the transport protection of the measuring unit .
  • Page 5 Alyza IQ NH4 HR List of contents 4.5.3 Information on maintenance activities and calibration procedures (tab History) ......96 4.5.4 More information on the Alyza IQ (tab Info) .
  • Page 6 List of contents Alyza IQ NH4 HR Maintenance and cleaning (complex activities) ..151 Decommissioning ........151 6.1.1 Preparing the decommissioning .

  • Page 7: Overview

    Alyza IQ NH4 HR Overview Overview How to use this component operating manual Structure of the IQ S ENSOR operating manual IQ S System operating manual (ring binder) ENSOR Operating manuals for components and options (e.g. field bus) figure 1-1 Structure of the IQ S operating manual ENSOR...

  • Page 8: Metrological Basics Nh4-N, Nh3-N, Nh4

    Overview Alyza IQ NH4 HR Metrological basics NH4-N, NH3-N, NH4 In aqueous solutions, ammonia (NH ) and ammonium (NH ) are at equilibrium Ammonium O → NH + OH In acidic solutions (pH value < 7) there are more ammonium ions, in alkaline solutions (pH value >...
  • Page 9 Alyza IQ NH4 HR Overview The following components are required for operation of the Alyza IQ: Component / Explanation function Sensor The Alyza IQ analyzer is an IQ S sen- ENSOR sor with special functions. Controller, For controlling, and to display the measured val- terminal ues, the Alyza IQ requires a functioning connection module...
  • Page 10 Overview Alyza IQ NH4 HR fig. 1-2,  10 shows the mains components of the Alyza IQ. Instrument design figure 1-2 Main components of the Alyza IQ Cover for the control unit ACM Mounting plate Switch for internal 24 VDC supply Power supply box, behind the mounting plate (120 V / 240 V AC) Filtration pump (installed or free) Sample feed tube, blue (to the overflow vessel)
  • Page 11 Alyza IQ NH4 HR Overview The measuring unit ready for operation (9) includes the following components – Front cover with light duct for the status LED of the measuring unit – Control unit (ACS) – Locking device of the MultiPort valve (MPV) –...

  • Page 12: Ensor Net

    Overview Alyza IQ NH4 HR Power supply and fig. 1-3,  12 shows the power supply and communication interfaces of the communication Alyza IQ. Alyza IQ Control unit ACM Switch box IQ Sensor Net interface 24 V DC e.g. SN 18110258 On/Off Power supply box Data + power...
  • Page 13 Alyza IQ NH4 HR Overview fig. 1-4,  13 shows the liquid circle of the Alyza IQ. Liquid circle Alyza IQ figure 1-4 Liquid circle Intake line Filtration pump Overflow vessel Collection funnel for the sample overflow from the overflow vessel Return line for the sample overflow from the overflow vessel Syringe pump ChemBags (reagents, standard solutions, cleaning solutions)

  • Page 14: Measuring Unit

    Overview Alyza IQ NH4 HR 1.3.2 Measuring unit fig. 1-5,  14 shows the open measuring unit (without front cover). figure 1-5 Open measuring unit (without front cover) Tube fastening Control unit ACS Locking device of the MultiPort valve (MPV) Receptacle for the MultiPort Valve (MPV) with tubes Contact that detects whether the measuring unit is closed with the front cover.

  • Page 15: Chembags

    Alyza IQ NH4 HR Overview are required. The dosing of the reagents to the sample takes place in the mixing chamber in the MultiPort valve. The sample mixed with reagents is then moved to the cell in the photometer unit (9) to be measured.

  • Page 16: Status Leds

    Overview Alyza IQ NH4 HR Fill the system Other procedures that consume liquids are not counted (e.g. The current counter reading for the ChemBags can be viewed in the Remaining Alyza menu (tab Days In the overview, the remaining time is displayed in days ( You can display more details for each ChemBag with <OK>.

  • Page 17: Instrument Variants

    Alyza IQ NH4 HR Overview Status LED at the Meaning front cover of the measuring unit No power supply Error The Alyza IQ is stopped, details see log book Red, flashes Close the front cover of the measuring unit immedi- quickly ately.
  • Page 18 Overview Alyza IQ NH4 HR Structure of the name plate Alyza IQ NH4-XYZ figure 1-7 Structure of the type designation : Measurement procedure : Measuring range : Number of channels Type designation Identifier Values Variant (details) Photometric measurement (Variant: measuring pro- cedure) 2 permanent measuring ranges (Variant:...

  • Page 19: Sample Filtration

    Alyza IQ NH4 HR Overview fig. 1-8,  19 shows a filtration pump in the Alyza IQ. figure 1-8 Filtration pump Filtration pump (control panel, rotary knob, LEDs) Sample feed tube (to the overflow vessel) Overflow vessel Sample overflow tube (sample overflow from the overflow vessel) Intake line Manometer (filtration pump) The filtration pump quasi continuously draws sample through the intake line (5)

  • Page 20: Name Plates

    Overview Alyza IQ NH4 HR lengths and with auxiliary heating to protect against frost (depending on the line voltage). fig. 1-9,  20 shows an application example in a sedimentation tank. figure 1-9 Sample filtration device (installed) Chain (scope of delivery: Basin holder for filtration M 1.5) Guide rail (scope of delivery: Attachment for filtration M 1.5) Height adjustable slide (scope of delivery: Suction line) Intake line (scope of delivery: Suction line)
  • Page 21 Alyza IQ NH4 HR Overview Component Place of the name plate MultiPort valve (MPV) on the side of the MPV Mounting plate on the right-hand side of the switch box Sleeve tubes of the at the end of the lines (toward the Alyza IQ ) intake line and return lines Keep the series numbers on the name plates ready for any service...

  • Page 22: Safety Instructions

    Safety instructions Alyza IQ NH4 HR Safety instructions Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the product. Read this operating manual thoroughly and make yourself familiar with the product before putting it into operation or working with it. The operating manual must be kept in the vicinity of the product so you can always find the in- formation you need.

  • Page 23: Safe Operation

    Alyza IQ NH4 HR Safety instructions Safe operation 2.2.1 Authorized use The authorized use of the Alyza IQ is its use as a sensor in the IQ S ENSOR Only the operation and running of the Alyza IQ according to the instructions and technical specifications given in this operating manual is authorized (see chapter 8 Technical data, ...

  • Page 24: Personal Protective Equipment (Ppe)

    Safety instructions Alyza IQ NH4 HR miliar with the necessary precautions to take when dealing with chemicals as a result of their professional training and experience. The following installation activities may only be performed by a qualified electri- Special user cian: qualifications ...
  • Page 25 Alyza IQ NH4 HR Safety instructions It is the duty of the operator to provide all users with the required PPE. The PPE must fulfill the national standards and laws. ba77276d02 03/2025...

  • Page 26: Commissioning

    Commissioning Alyza IQ NH4 HR Commissioning system requirements IQ S ENSOR For operation of the Alyza IQ, the current software for Alyza IQ and the control- ler in the IQ S is recommended. ENSOR The IQ S Update Pack with the current instrument software for all ac- ENSOR tive IQ S components as well as the instructions for execution are...

  • Page 27: Basic Principles Of Installation

    Alyza IQ NH4 HR Commissioning  Stand mount SM  Mount TM for fastening and operation of an MIQ module, e.g. MIQ/JB and Mount for a terminal/controller MIQ/TC 2020 3G or DIQ/S 28X terminal Depending on the type, variant and configuration of your Alyza IQ, you need one ChemBags or several ChemBags for each of the following options: ...

  • Page 28: Safety Requirements Of The Electrical Installation

    Commissioning Alyza IQ NH4 HR must be adapted to the ambient temperature prior to opening the measuring unit. The temperature adaptation is done with the function Prepare to open mea- suring unit. As soon as the measuring unit is ready to be opened, this is dis- Status tab.

  • Page 29: General Installation Instructions

    Alyza IQ NH4 HR Commissioning  Flame resistant (cable and lines), compliant with the following regulations – UL 2556 VW-1 (for USA, Canada) – IEC 60332-1-2 (outside of USA, Canada) Details on the conditions at the installation site: See chapter 8 Technical data,  171. 3.3.3 General installation instructions This section describes the installation of the Alyza IQ with various, especially designed accessories.

  • Page 30: Installing The Housing

    Commissioning Alyza IQ NH4 HR Installing the housing (see section 3.3.4 Installing the housing,  30). Removing the transport protection of the measuring unit (see section 3.3.8 Removing the transport protection of the measuring unit,  43). Connecting the cables to the control unit ACM (see section 3.3.9 Con- necting the cables to the control unit ACM, ...

  • Page 31: Installation On The Sm Stand Mount

    Alyza IQ NH4 HR Commissioning 3.3.5 Installation on the SM stand mount Proceed as follows to install the housing on the stand mount: Assembling the stand mount (2 x) figure 3-1 Mounting the ground pipes Protective plug Square ground pipe Stand foot Press the plastic protective plugs (1) into both ends of the square ground pipes (2).
  • Page 32 Commissioning Alyza IQ NH4 HR figure 3-2 Connecting the supporting pipes with the ground pipes Protective plug Square ground pipe Square supporting pipe Stabilizing sheet Press the plastic protective plugs (1) into the upper ends of both square supporting pipes (3). ba77276d02 03/2025...
  • Page 33 Alyza IQ NH4 HR Commissioning Using the triangular stabilizing sheets (4), connect both square support- ing pipes (3) with the preassembled ground pipes (2). For each side, use six hexagon head screws with large plain washers, spring washers and locknuts as shown in fig. 3-2,  32. Make sure the two sides mirror each other after being mounted.
  • Page 34 Commissioning Alyza IQ NH4 HR Make sure that both triangular stabilizing sheets (5) are on the in- side. figure 3-4 Mounting the retaining hooks Retaining hook Mount the four retaining hooks (1) on the supporting pipes. For each hook, use two hexagon head screws, large plain washers, spring wash- ers and locknuts.
  • Page 35 Alyza IQ NH4 HR Commissioning Adjust the four vertically adjustable stand feet in such a way that the mounting stand is in a straight position (check, for example, with a water level) to ensure that the liquids can drain off optimally. NOTE Always screw the four stand feet to the ground.

  • Page 36: Installation On A Rail

    Commissioning Alyza IQ NH4 HR figure 3-6 Fixing the housing Angle bracket Fix the housing on both sides with four brackets (1) so it cannot shift sideways. For each bracket, use two hexagon head screws, small plain washers, spring washers and locknuts. 3.3.6 Installation on a rail For installation on a rail, the RM rail mount bracket is required.
  • Page 37 Alyza IQ NH4 HR Commissioning Proceed as follows to install the housing on the rail: Assembling the bracket figure 3-7 Connecting the supporting pipes with the cross pipes Protective plug Square supporting pipe Square cross pipe Angle bracket Press the plastic protective plugs (1) into the upper ends of both square supporting pipes (2).
  • Page 38 Commissioning Alyza IQ NH4 HR figure 3-8 Mounting the retaining hooks Retaining hook Mount the four retaining hooks (1) on the supporting pipes. For each hook, use two short hexagon head screws, spring washers and lock- nuts. There are three pairs of holes each for the upper and lower retaining hooks.
  • Page 39 Alyza IQ NH4 HR Commissioning Bracket up- right! Rail If necessary, insert fur- ther clamping strips and washers figure 3-9 Mounting the rail mount bracket on the rail Groove bar Clamping strip Long hexagon head screw Spring washer ba77276d02 03/2025...
  • Page 40 Commissioning Alyza IQ NH4 HR Attach the rail mount bracket to two suitable horizontal rail pipes with the aid of the four clamping devices. Each clamping device consists of a groove bar (1), a terminal strip (2), two long hexagon head screws (3), two nuts (4) and two spring washers (5).

  • Page 41: Installation On A Wall

    Alyza IQ NH4 HR Commissioning figure 3-11 Fixing the housing (on the right: Detailed view) Angle bracket Fix the housing on both sides with four brackets (1) so it cannot shift sideways. For each bracket, use two short hexagon head screws, small plain washers, spring washers and locknuts.
  • Page 42 Commissioning Alyza IQ NH4 HR figure 3-12 Drilling dimensions for mounting the WM wall mounting assembly Screw tight the four retaining hooks of the wall mounting set. Mount the housing by hooking the C-rails fixed on its rear side into the four retaining hooks.

  • Page 43: Removing The Transport Protection Of The Measuring Unit

    Alyza IQ NH4 HR Commissioning figure 3-13 Housing of the Alyza IQ in the WM wall mounting assembly Retaining hook Fixing screws of the C-rail 3.3.8 Removing the transport protection of the measuring unit The transport protection in the housing of the Alyza IQ fixes the measuring unit in its position with the aid of 3 spacers made of foam.

  • Page 44: Connecting The Cables To The Control Unit Acm

    Commissioning Alyza IQ NH4 HR figure 3-14 Transportation safety devices Control unit with connectors Transport protector 1 in the front Transport protector 2 in the front Transport protector 3 in the background Measuring unit Pull the two transport protectors (2, 3) out to the front. Carefully move the transport protector (4) of the measuring unit (5) upward and then pull it out to the front.

  • Page 45: Mounting The Cover Plate For The Control Unit Acm

    Alyza IQ NH4 HR Commissioning figure 3-15 Cable of the control unit ACM 3-pole connection (mains) 4-pole connection (data) USB connection RJ45 connection 3.3.10 Mounting the cover plate for the control unit ACM The cover plate for the control unit ACM covers the control unit ACM and the ca- bles connected to it.

  • Page 46: Installing The Bug Screen And Condensate Drain Adapter

    Commissioning Alyza IQ NH4 HR figure 3-16 Cover plate for the control unit ACM Knurled-head screws to mount the cover plate Cover plate for the control unit ACM Cables for power supply Measuring unit 3.3.11 Installing the bug screen and condensate drain adapter The bug screen protects the interior of the Alyza IQ against insects coming in Bug screen through the air intake opening in the bottom of the housing.
  • Page 47 Alyza IQ NH4 HR Commissioning figure 3-17 Mounting the bug screen and condensate drain adapter Condensate drain tube (black) at the housing bottom Bug screen Frame with seal Condensate drain adapter with 2 screws Condensate drain tube (transparent) 4 knurled-head screws Screw the condensate drain adapter (4) with 2 screws to the frame (3) Installation so that the tube nozzle of the adapter is on the outside of the frame.

  • Page 48: Mounting The Terminal Holder (Tm)

    Commissioning Alyza IQ NH4 HR figure 3-18 Mounted bug screen and condensate drain adapter Frame Bug screen Condensate drain adapter One of the 4 knurled-head screws 3.3.12 Mounting the terminal holder (TM) Operating the Alyza IQ, especially while maintenance activities are being exe- cuted at the open measuring unit, requires a terminal mounted in the vicinity (e.g.
  • Page 49 Alyza IQ NH4 HR Commissioning figure 3-19 Installed terminal holder TM (view of the rear side) Example: Installation on an SM stand mount Upper bracket Upper angle bracket Bore holes for the canopy Mounting sheet Lower bracket Lower angle bracket The terminal holder is installed at the left-hand side of the Alyza IQ.

  • Page 50: Ensor Net

    Commissioning Alyza IQ NH4 HR Position the second bracket (5) on the mounting stand and insert the ends of the bracket in the bore holes of the angle bracket. Fix the angle bracket (6) to the bracket loosely with 2 nuts. Installation on a Screw the mounting sheet (4) to both brackets (2, 6) with 4 hexagon mounting stand or...

  • Page 51: Connecting The Power Cable And Heat Tracing Lines

    Alyza IQ NH4 HR Commissioning figure 3-20 Mounted terminal holder TM with canopy, MIQ/JB and MIQ/TC 2020 3G 3.3.13 Connecting the power cable and heat tracing lines For all work done with the housing open:  If the Alyza IQ was already in operation: Before opening the measuring unit, start the maintenance routine at the terminal.
  • Page 52 Commissioning Alyza IQ NH4 HR figure 3-21 Cable glands for intake line and return lines (view from inside and from below) Cable gland (front) for return line 2 (in the example, sealed with yellow plug) Cable gland (2nd from the front) for return line 1 (in the example: waste from the measuring unit and sample overflow from the overflow vessel) Cable gland (3rd from the front) for the intake line...
  • Page 53 Alyza IQ NH4 HR Commissioning ing bottom of the Alyza IQ. The power cable is delivered without plug. It is designed to be directly connected to the power supply. Note the safety requirements (see section 3.3.2 Safety re- quirements of the electrical installation,  28). If necessary, you can install a longer power cable in the power sup- ply box (see section 3.3.13 Connecting the power cable and heat tracing lines, ...
  • Page 54 Commissioning Alyza IQ NH4 HR Remove the cable connections and the connections of the tubes and liq- uid lines from the mounting plate:  Unplug the 2 cables from the switch box.  Unscrew the sample tube from the overflow vessel. ...
  • Page 55 Alyza IQ NH4 HR Commissioning Remove the mounting plate:  Lift the mounting plate upward over the threaded pins.  Tilt the upper edge of the mounting plate somewhat backwards and remove the mounting plate from the housing downwards.  Place the mounting plate with the rear side down on a protected sur- face (e.g.
  • Page 56 Commissioning Alyza IQ NH4 HR Unscrew the nuts of the cable glands for the cables of the heat tracing at the underside of the power supply box. On the underside of the power supply box, remove the protective plugs from those cable glands you need to connect the cables. Unused cable glands have to be closed with the supplied black plugs.
  • Page 57 Alyza IQ NH4 HR Commissioning figure 3-24 Connections at the housing bottom (from below) Example: 1 sample channel, 1 drain, 1 trigger cable IQ S cable ENSOR Power line Gland for the trigger cable Gland for sleeve tube of the intake line Gland for sleeve tube of return line 1 Gland for sleeve tube of return line 2 (in the example it is unused and sealed with a yellow protective plug)
  • Page 58 Commissioning Alyza IQ NH4 HR Insert all heat tracing cables into the power supply box. Insert the heat tracing wires into the respective terminals so that each terminal catches. Green/yellow cable: any green/yellow terminal 1st black cable: any blue terminal 2nd black cable: any gray terminal The heating bands of the heat tracing must start within the housing of the Alyza IQ to keep the lines frost free.

  • Page 59: Mounting The Collection Funnel

    Alyza IQ NH4 HR Commissioning Re-establish the cable connections and the connection of the tubes and liquid lines.  Connect the 2 cables to the switch box.  Mount the collection funnel: – the collection funnel for the chemical waste and, if necessary, –...
  • Page 60 Commissioning Alyza IQ NH4 HR  Collection funnel Scope of delivery of the collection  Rubber cover for collection funnel funnel of the  3 plugs for the openings of the rubber cover Alyza IQ  2 sample overflow tubes (from the overflow vessel to the collection funnel) ...

  • Page 61: Mounting The Wf Set (Collection Funnel For Sample Overflow)

    Alyza IQ NH4 HR Commissioning Insert the return line into the housing from the outside through the cable gland (8). Inside, the end of the waste tube should be flush with the cable gland (8). Details on how to install the return lines and heat tracing lines: see section 3.3.13 Connecting the power cable and heat tracing lines, ...
  • Page 62 Commissioning Alyza IQ NH4 HR the overflow vessel is transported out of the housing. To collect and dispose separately of the chemical waste from the measuring unit, a suitable (chemical resistant, winterproof) collecting container is required additionally.  Collection funnel Scope of delivery of the WF Set ...
  • Page 63 Alyza IQ NH4 HR Commissioning Close any unused openings of the rubber cover with the plugs provided so that the housing is protected from humidity. figure 3-26 Collection funnel for the separate discharge of all liquids Heating line of the heat tracing (attached to the fixing bracket with a cable tie) Waste tube of the measuring unit Sample overflow tube from the overflow vessel...

  • Page 64: Installing The Fm/Pc Filter Module And M 1.5 Basin Holder For Filtration

    Commissioning Alyza IQ NH4 HR 3.3.16 Installing the FM/PC filter module and M 1.5 basin holder for filtra- tion Heed the following notes when installing the filter module: Installation instructions  Mount the filter module so that the plate is in a position vertical to the flow direction.

  • Page 65: Connecting The Tubes And Liquid Lines

    Alyza IQ NH4 HR Commissioning figure 3-27 Sample filtration device (installed) Chain (scope of delivery: basin holder for filtration M 1.5) Guide rail (scope of delivery: basin holder for filtration M 1.5) Height adjustable slide (scope of delivery: Suction line) Intake line (scope of delivery: Suction line) Sleeve tube (scope of delivery: Suction line) Filter module (FM/PC) with filter plate (Filter/PC)
  • Page 66 Commissioning Alyza IQ NH4 HR For all work done with the housing open:  If the Alyza IQ was already in operation: Before opening the doors, start the maintenance routine at the terminal.  Note the environmental conditions (see fig. 3.3.1,  27). ...
  • Page 67 Alyza IQ NH4 HR Commissioning figure 3-28 Completely connected lines Filtration pump Sample feed tube (filtration pump - overflow vessel) Intake line Overflow vessel Sample overflow tube (overflow vessel - collection funnel) Sample tube (overflow vessel - measuring unit) Proceed as follows to connect each line: Connect the intake line to the filtration pump.
  • Page 68 Commissioning Alyza IQ NH4 HR figure 3-29 Hole for the sample tube Groove for the hole of the sample tube through the insulation of the measuring unit Connector for the connection of the sample tube to the overflow vessel Carefully press the sample tubes into the grooves (1) on the left side of the measuring unit so that the sample tubes are not bent even when the front cover is closed.

  • Page 69: Routing The Trigger Cable Out Of The Housing Of The Alyza Iq

    Alyza IQ NH4 HR Commissioning The liquids in the return lines have to be able to drain off freely (steady slope). Do not immerse the end of the line in water. Check the pre-installed sample feed tube for correct connection to the filtration pump and the overflow vessel.

  • Page 70: Connecting The Trigger Cable With A Signal Transmitter

    Commissioning Alyza IQ NH4 HR figure 3-30 Trigger cable with contact protection Screw on a free cable gland on the underside of the Alyza IQ (recom- mendation: the rearmost cable gland). Feed the trigger cable through the free cable gland. Replace the yellow seal of the cable gland with the blue seal for the cable outlet.

  • Page 71: Setting Up A Connection With The Iq Sensor Net System

    Alyza IQ NH4 HR Commissioning – Stop the Alyza IQ Maintenance STOP Alyza IQ (Alyza menu, tab , function – Switch off the Alyza IQ ( Switch for 24 V power supply on the switch box). Disconnect the contact protection from both wire ends. Connect the wires of the trigger cable to an external signal transmitter (e.g.

  • Page 72: Taking The Filtration Pumps Into Operation

    Commissioning Alyza IQ NH4 HR 3.3.21 Taking the filtration pumps into operation Make sure that all lines (intake line, return lines) and tubes (sample feed tube, sample overflow tube, sample tube, waste tube) in the Alyza IQ are connected correctly. Set the 24 VDC switch on the mounting plate to ON (I pressed upward).

  • Page 73: Ensor Net

    Alyza IQ NH4 HR Commissioning  Open and then close again the ventilation valve (1).  Fill the intake line with water manually: – Switch off the filtration pump. – Pull the intake line off the filtration pump. – Fill the intake line with water (e.g. using a wash bottle). –...

  • Page 74: Initial Commissioning

    Commissioning Alyza IQ NH4 HR Initial commissioning For all work done with the housing open:  If the Alyza IQ was already in operation: Before opening the measuring unit, start the maintenance routine at the terminal.  Note the environmental conditions (see fig. 3.3.1,  27). ...

  • Page 75: Stick The Label (National Language) Onto The Locking Device Of The Multiport Valve

    Alyza IQ NH4 HR Commissioning section 8.2 Application conditions,  172)?  Is the Alyza IQ connected to the IQ S ENSOR (MIQ/JB + Terminal/Controller, is the Alyza IQ displayed as a sensor on the IQ S terminal, ENSOR see section 3.3.20 Setting up a connection with the IQ S system, ENSOR ...

  • Page 76: Carrying Out The Install Wizard

    Commissioning Alyza IQ NH4 HR The label is supplied in several languages. figure 3-34 Stick the "Status LED" label in the local language on the inside of the door of the Alyza IQ 3.4.4 Carrying out the install wizard When all requirements for the commissioning are met, start the install wizard to install the replacement parts required.
  • Page 77 Alyza IQ NH4 HR Commissioning figure 3-35 Measured value display of the Alyza IQ Highlight the measured value display of the Alyza IQ. Open the Alyza menu with <C>. On initial commissioning, the install wizard of the Alyza IQ opens auto- matically.
  • Page 78 Commissioning Alyza IQ NH4 HR Follow the instructions of the install wizard.  Step 1: Configure all settings requiring the installation of replacement parts (ChemBags, tubes). From these settings, the install wizard makes a list of the replacement parts required. ...

  • Page 79: Measurement / Operation

    Alyza IQ NH4 HR Measurement / Operation Measurement / Operation General operating principles The Alyza IQ is operated via a separate menu (Alyza menu) on the IQ S terminal. ENSOR In the measured value display, use < > to select the Alyza IQ. Using the <C>...

  • Page 80: Measurement Operation

    Measurement / Operation Alyza IQ NH4 HR In the Alyza menu, Settings  configure the Alyza IQ (Tab  you have access to information on the current operating condition (tabs Status, Remaining, History, Info) Maintenance  you can start the calibrating and service functions (tab e.g.: –...
  • Page 81 Alyza IQ NH4 HR Measurement / Operation nal. figure 4-2 Measured value display of the Alyza IQ The current Alyza IQ measured values are also displayed in the Alyza menu, tab Status . More detailed information on the current status is available here, (e.g. next measurement, next cleaning, next calibration).

  • Page 82: Measuring With Trigger Signal

    Measurement / Operation Alyza IQ NH4 HR 4.2.4 Measuring with trigger signal If function Trigger is active, a measurement can be started event-controlled by an external signal.  The trigger cable is routed out of the housing of the Alyza IQ (see section Requirements for 3.3.18 R IQ).
  • Page 83 Alyza IQ NH4 HR Measurement / Operation Alternatively, the settings can also be accessed in the sensor set- tings (see IQ S system operating manual). ENSOR The order of the menu items may differ from the order in the sensor settings.
  • Page 84 Measurement / Operation Alyza IQ NH4 HR Setting menu Possible values Description Offset correction With the setting Measuring - 0.150… … For other measuring modes and mea- 0.000 NH4-N , MR1 mode: + 0.150 mg/L suring ranges, the value ranges are adjusted.
  • Page 85 Alyza IQ NH4 HR Measurement / Operation Setting menu Possible values Description (general settings) Switches the automatic cleaning function on or Autom.cleaning  Interval 6, 12, 24, 48, 72, 96, Interval in h 168, Off  Ref.time hours 0… …23 Defines the start time from which the auto- matic cleaning procedures will take place at ...

  • Page 86: Priority

    Measurement / Operation Alyza IQ NH4 HR Setting menu Possible values Description (general settings) continuous The filtration pump continuously feeds sample Filtration pump into the overflow vessel. The filtration pump only delivers sample in the stand by set time interval before a measurement (see processing time menu item The filtration pump is switched off at all other...

  • Page 87: Damping

    Alyza IQ NH4 HR Measurement / Operation 4.3.2 Damping The Alyza IQ determines the measured values not continuously but at defined intervals. Two consecutive measured values can be quite different due to various rea- sons. Possible reasons are:  actual concentration changes in the sample ...

  • Page 88: Calibration

    Measurement / Operation Alyza IQ NH4 HR An AutoCheck is successful if the measured value for the AutoCheck standard does not deviate from the nominal value by more than 10%. The measured val- AutoCheck history ue, nominal value and deviation are documented in the Calibration 4.4.1 Overview During operation, individual components of the Alyza IQ can age or become...

  • Page 89: Calibration

    Alyza IQ NH4 HR Measurement / Operation 4.4.2 Calibration Automatic calibration is carried out in the measuring operation at regular inter- Automatic vals. calibration The setting of the calibration interval and calibration time is done in the menu Einstellungen Sensoren/Differenzsensoren (see section 4.3 Settings for the Alyza IQ, ...
  • Page 90 Measurement / Operation Alyza IQ NH4 HR figure 4-6 Tab Maintenance STOP Alyza IQ Carry out the function to stop the running operation. Confirm the function to stop the running operation. The maintenance condition is automatically activated in the IQ S for the Alyza IQ.

  • Page 91: Calibration History

    Alyza IQ NH4 HR Measurement / Operation have the following results: Display after Meaning/actions calibrating Measured value Successful calibration "----" Calibration unsuccessful (see log book). The Alyza IQ is blocked for measurement.  Carry out maintenance activities immediately (see sensor operating manual). ...

  • Page 92: Information On The Alyza Iq

    Measurement / Operation Alyza IQ NH4 HR Reactivating old calibration data is a temporary measure. Take into consideration that the sensor may provide wrong measured values. Ensure the correct functioning of the Alyza IQ by checking and/or recalibrating. In the measured value display, use < > to select the Alyza IQ. Using the <C>...

  • Page 93: Information On The Current Operating Condition

    Alyza IQ NH4 HR Measurement / Operation – Current measured values of sensors (e.g. temperature, etc.) – Current statuses (e.g. heating, ventilator, cooling, etc.) – Software versions of individual components of the Alyza IQ – Serial numbers of individual assembly groups In the measured value display, use <...

  • Page 94: Information On The Expected Lifetimes Of Replacement Parts

    Measurement / Operation Alyza IQ NH4 HR figure 4-7 Operating condition (tab Status) In the Status tab, the following information on the current operating condition is available:  Current operating condition (e.g. measuring, calibration, etc.)  Measured value of the last measurement with date and time ...
  • Page 95 Alyza IQ NH4 HR Measurement / Operation figure 4-8 Overview Remaining (tab Remaining) The estimated times remaining until the next exchange are shown in days in the overview. If the times remaining are short, this is also indicated in the display. Remaining time Signal <...

  • Page 96: Information On Maintenance Activities And Calibration Procedures

    Measurement / Operation Alyza IQ NH4 HR More details on the lifetime of a replacement part can be opened with <OK>. figure 4-9 Information on Remaining, detailed view (Tab Remaining) 4.5.3 Information on maintenance activities and calibration procedures (tab History) The Alyza IQ histories provide an overview of the replacement parts installed, the maintenance activities carried out, and the calibration procedures per- formed.
  • Page 97 Alyza IQ NH4 HR Measurement / Operation Installed replacement parts figure 4-10 Installed replacement parts (tab History / Installed replacement parts) The list Installed replacement parts shows a list of all components that have to be replaced regularly, i.e.when the use-by period has expired. The installation date and expiry date of a component are recorded when the component is installed.
  • Page 98 Measurement / Operation Alyza IQ NH4 HR Calibration history The Calibration history list shows the last calibration results (see section 4.4.3 Calibration history,  91). To display more information, use < >< > Current calibration data Chronological list of the last calibration procedures To display explana- tions and additional...

  • Page 99: More Information On The Alyza Iq (Tab Info)

    Alyza IQ NH4 HR Measurement / Operation In the list Cycle history (Service info), partial steps (cycles) are recorded during Cycle history the operation of the Alyza IQ. The details of the cycles are used by the service (Service info) department to diagnose the causes of errors.

  • Page 100: Transferring Information To A Usb Memory Device Via The Alyza Iq

    Measurement / Operation Alyza IQ NH4 HR Transferring information to a USB memory device via the Alyza IQ You can save the measurement data of the Alyza IQ via the USB interface of your IQ S controller as usual (see system operating manual). ENSOR Moreover, other operating data can also be transferred to a USB memory device via the Alyza IQ:...

  • Page 101: Transferring Detailed Operating Data To A Usb Memory Device For Evaluation By The Service Department

    Alyza IQ NH4 HR Measurement / Operation 4.6.2 Transferring detailed operating data to a USB memory device for evaluation by the service department The service department can make use of the detailed operating data to analyze and eliminate errors. Unscrew the 2 fixing screws of the cover lid of the control unit ACM and remove the cover lid of the ACM.

  • Page 102: Software Update For The Alyza Iq

    Measurement / Operation Alyza IQ NH4 HR Software update for the Alyza IQ With a Software-Update you can alway update your Alyza IQ to the latest status of the instrument software. For the update packet with the current instrument software for the Alyza IQ as well as a comprehensive manual on how to carry out the update, go to www.xy- lemanalytics.com.
  • Page 103 Alyza IQ NH4 HR Measurement / Operation A sequence of beeps indicates the status of the software update. The sequence of beeps is repeated until the status is finished automatically or manually: Sequence of beeps Explanation STATUS / Next step UPDATE ACTIVE 1 short beep (0.2 secs.) Software update acti-...

  • Page 104: Maintenance And Cleaning

    Maintenance and cleaning Alyza IQ NH4 HR Maintenance and cleaning Hazard warnings Read the chapter 2 Safety instructions,  22 before doing any maintenance work. This is important for your personal safety. NOTE The interior of the measuring unit is temperature-controlled to 20 °C (68 °F). With ambient temperatures over 25 °C (77 °F) and high air humidity, condensa- tion water may develop on the cool surfaces and cause damage when the mea- suring unit is opened.

  • Page 105: Opening The Locking Device Of The Multiport Valve ("Before Opening: Drain The System")

    Alyza IQ NH4 HR Maintenance and cleaning  If a ChemBag was damaged in the transport packaging, e.g. visibly leaked Notes on safely liquid, do not use this ChemBag in the Alyza IQ. handling the ChemBags  Make sure you don't damage the ChemBags when unpacking them from the transport packaging.
  • Page 106 Maintenance and cleaning Alyza IQ NH4 HR Prior to opening the locking device always check whether the mea- suring unit was prepared for the opening and whether the system was emptied (e.g. tab Status in the Alyza menu). How to prepare the maintenance of the measuring unit is described in detail with the maintenance of the measuring unit (see section 5.5 Installing / exchanging the ChemBags, MPV, tubes, ...
  • Page 107 Alyza IQ NH4 HR Maintenance and cleaning figure 5-1 Tubes in the tube fasteners Make sure that the connected ChemBags are safely suspended from the supporting rod, and that they are not pressed or moved while the locking device is open. Make sure that the sample tubes (from the overflow vessel to the mea- suring unit) are fixed in the recesses at the left-hand side of the measur- ing unit.
  • Page 108 Maintenance and cleaning Alyza IQ NH4 HR Gently fold down the fluidic interface above the MultiPort valve by hand so that it contacts the paper, and liquid remains are absorbed. The locking device is now safely opened. Make sure that the seals of the fluidic interface remain within the inter- face.

  • Page 109: Replacement Parts, Accessories

    Alyza IQ NH4 HR Maintenance and cleaning Replacement parts, accessories Only use original replacement parts and accessories. ChemBags are available as sets optimally combined for your application. The combination as sets takes into account the following factors for your appli- cation: ...

  • Page 110: Overview Of The Maintenance And Cleaning Activities

    Maintenance and cleaning Alyza IQ NH4 HR  Available in shops selling household goods, household departments of big shops and hardware stores etc. Trade name: 9062 Sodium hypochlorite solution  Order no.: 90620.3  Carl Roth, Schoemperlenstraße 3, 76185 Karlsruhe Trade name: Techn.
  • Page 111 Alyza IQ NH4 HR Maintenance and cleaning Regular maintenance Interval Installing/replacing the 12 - 24 months tubes on the MultiPort valve (MPV) (see section 5.5,  113) Measuring unit Installing/replacing the 2 years (complex main- syringe body (see mounting tenance activi- instructions for the syringe ties in the labora- body)
  • Page 112 Maintenance and cleaning Alyza IQ NH4 HR Regular maintenance Interval Housing Exchange the filter mats on Depending on contami- the housing (see section nation 5.8.2,  138) Clean the housing (see As necessary section 5.8.1,  138) Clean the bug screen As necessary Maintenance activities at the power supply box are only required for work at the Maintenance...

  • Page 113: Installing / Exchanging The Chembags, Mpv, Tubes

    Alyza IQ NH4 HR Maintenance and cleaning Installing / exchanging the ChemBags, MPV, tubes The routine maintenance activities on the measuring unit are included in one procedure (MPV, tubes, ChemBags). WARNING Dangerous chemicals. Improper use of chemicals can cause damage to your health.

  • Page 114: Starting The Maintenance Routine Of The Alyza Iq

    Maintenance and cleaning Alyza IQ NH4 HR If required: Installing the MultiPort valve (MPV) and tubes (see section 5.5.4,  117) If required: Installing the ChemBags (see section 5.5.7,  123) Terminating the maintenance routine (see section 5.5.8,  126) 5.5.1 Starting the maintenance routine of the Alyza IQ In the measured value display, use <...

  • Page 115: Preparing The Maintenance Activities

    Alyza IQ NH4 HR Maintenance and cleaning The list of replacement parts does not include exchanging the tubes. 5.5.2 Preparing the maintenance activities WARNING Dangerous chemicals. Improper use of chemicals can cause damage to your health. Heed the following rules: ...
  • Page 116 Maintenance and cleaning Alyza IQ NH4 HR Open the Alyza IQ. Remove the front cover of the measuring unit. The measuring unit is ready to be opened when the LED of the measur- ing unit lights up white. Using one hand, grip the handle at the upper edge of the front cover of the measuring unit.

  • Page 117: Installing The Multiport Valve (Mpv) And Tubes

    Alyza IQ NH4 HR Maintenance and cleaning 5.5.4 Installing the MultiPort valve (MPV) and tubes WARNING Dangerous chemicals. Do not open the locking device of the MultiPort valve if the maintenance activities at the measuring unit have not been completed. Leaking chemicals can cause health problems and damage the measuring unit.
  • Page 118 Maintenance and cleaning Alyza IQ NH4 HR When the status LED flashes white: Open the locking device of the MultiPort valve (MPV) Beeps and a red flashing status LED signal that not all require- ments for a safe opening of the locking device were met. When the locking device is open, there is the risk of leaking chem- icals.
  • Page 119 Alyza IQ NH4 HR Maintenance and cleaning NOTE To avoid damage to the measuring unit caused by leaking chemicals, make sure that the following requirements are met while you are work- ing with the locking device open:  The connected ChemBags are safely suspended from the supporting rod.

  • Page 120: Remove The Chembags For Maintenance Activities

    Maintenance and cleaning Alyza IQ NH4 HR Color coding Connection of Green (reagent) MPV - ChemBag R Orange (calibration stan- MPV - ChemBag S dard) Blue (cleaning solution) MPV - ChemBag C Screw the new tubes onto the fluidic interface of the MultiPort valve. Use the special tool for this.

  • Page 121: Check The Collection Tray Under The Chembags For Liquids

    Alyza IQ NH4 HR Maintenance and cleaning figure 5-6 ChemBags removed to be exchanged Check the collection tray under the ChemBags for moisture (see section 5.5.6,  121). 5.5.6 Check the collection tray under the ChemBags for liquids Starting the maintenance routine of the Alyza IQ (see section 5.5.1, ...
  • Page 122 Maintenance and cleaning Alyza IQ NH4 HR figure 5-7 Position of the collection tray in the measuring unit (under the Chem- Bags) Collection tray If there is liquid in the collection tray:  Check the ChemBags for moisture and damage. ...

  • Page 123: Installing The Chembags

    Alyza IQ NH4 HR Maintenance and cleaning 5.5.7 Installing the ChemBags NOTE To avoid damage to the measuring unit caused by leaking chemicals, make sure that the following requirements are met while you are working with the Chem- Bags:  The MultiPort valve is inserted.
  • Page 124 Maintenance and cleaning Alyza IQ NH4 HR figure 5-8 Recommended order of the ChemBags on the supporting rod Screw the coupling of the tube tightly onto the connector of the new ChemBag. Make sure that the codings of the ChemBag and tube agree (symbol, color, number).
  • Page 125 Alyza IQ NH4 HR Maintenance and cleaning figure 5-9 Connecting the ChemBag Color coding of the tube Color coding of the ChemBag Carefully turn the ChemBag upside down. The connector points downward. If necessary, slightly knock on the connector of the ChemBag to remove any small bubbles from the connector.

  • Page 126: Terminating The Maintenance Routine

    Maintenance and cleaning Alyza IQ NH4 HR 5.5.8 Terminating the maintenance routine After maintenance activities at the measuring unit:  Hang the ChemBags back onto the supporting rod (see section 5.5.7,  123).  Close the front cover of the measuring unit and the doors of the Alyza IQ.

  • Page 127: Cleaning The Sample Filtration And Sample Feed

    Alyza IQ NH4 HR Maintenance and cleaning Cleaning the sample filtration and sample feed Cleaning of the filter module, see the following documents:  Mounting instructions for the filter module (FM/PC)  Alyza IQ - short instructions for cleaning the filter membrane module (included in the scope of delivery of the Alyza IQ ) 5.7.1 Mechanical cleaning of the filter plate The time when to clean the filter plate can be determined empirically based on...

  • Page 128: Iq Sensor Net

    Maintenance and cleaning Alyza IQ NH4 HR Pull the filtration unit out of the basin or channel.  The filter module does not have to be separated from the guide slide.  Do not unplug the sample line.  Do not dismount the filter plate from the frame. Rinse any gross contamination off of the filtration unit with low water pressure (e.g.

  • Page 129: Section 5.3 Replacement Parts, Accessories

    Alyza IQ NH4 HR Maintenance and cleaning The chemical cleaning is carried out with the aid of a suitable container (Filter- CL) for the cleaning bath. The amount of cleaning solution required depends on the shape and size of the cleaning container. In most cases, organic blockages can easily be removed with an aqueous sodi- Cleaning solution um hypochlorite solution (chlorine bleaching agent, NaClO, 1 % active chlorine).

  • Page 130: Storing A Used And Cleaned Filter Plate

    Maintenance and cleaning Alyza IQ NH4 HR Protect the filter plate against any contamination coming in (e.g. by clos- ing the connection adapter for the intake line). Dismount the filter plate (see section 5.7.4 Replacing the filter plate of the sample filtration,  131). Close the connector of the filter unit and the open intake line with blind plugs to that no contamination can get into the filter.

  • Page 131: Replacing The Filter Plate Of The Sample Filtration

    Alyza IQ NH4 HR Maintenance and cleaning To protect it against drying out, store the filter plate in the Filter-CL cleaning container or in a sealed plastic bag. Prior to each use, soak the filter plate in tap water. If the filter plate has dried out, soak it in tap water for several hours.

  • Page 132: Cleaning The Sample Feed, Overflow Vessel And Outlet

    Maintenance and cleaning Alyza IQ NH4 HR Insert the V4A countersunk screws and tighten them by hand. The fixing ring and lower part of the housing must be pressed together and flush (without gap). Remount and secure the cleaned filter module on the slide. Submerse the filtration unit in the basin or channel.
  • Page 133 Alyza IQ NH4 HR Maintenance and cleaning figure 5-11 Sample filtration device (installed) Chain (scope of delivery: basin holder for filtration M 1.5) Guide rail (scope of delivery: basin holder for filtration M 1.5) Height adjustable slide (scope of delivery: Suction line) Intake line (scope of delivery: Suction line) Sleeve tube (scope of delivery: Suction line) Filter module (FM/PC) with filter plate (Filter/PC)
  • Page 134 Maintenance and cleaning Alyza IQ NH4 HR figure 5-12 Measured value display of the Alyza IQ Using the <C> key, switch to the Alyza menu. Maintenance tab. Using < >, switch to the figure 5-13 Tab Maintenance STOP Alyza IQ Carry out the function to stop the running operation.
  • Page 135 Alyza IQ NH4 HR Maintenance and cleaning Carrying out WARNING maintenance Dangerous chemicals. activities Improper use of chemicals can cause damage to your health. Heed the following rules:  Read the labels of the ChemBags and follow the safety instructions ...
  • Page 136 Maintenance and cleaning Alyza IQ NH4 HR NOTE Detergents containing alcohol will damage the overflow vessel. If necessary: exchange or clean the filter plate (see section 5.7.1 Mechanical cleaning of the filter plate,  127). Provide a container of cleaning solution for the intake line and sample feed tube.
  • Page 137 Alyza IQ NH4 HR Maintenance and cleaning Switch on the filtration pump with the Start key. Cleaning solution is drawn in through the intake line until it flows into the bottle at the open line end. Leave the filtration pump switched on until the minimum quantity (see ...

  • Page 138: Maintenance Activities At The Housing

    Maintenance and cleaning Alyza IQ NH4 HR Leave the filtration pump to work for some time to completely remove the detergents. Maintenance Manual maintenance / Fill the sys- Fill the sample tube ( tem / Sample %d) Restarting the Restart the Alyza IQ and switch off the maintenance condition at the measuring IQ S ENSOR...
  • Page 139 Alyza IQ NH4 HR Maintenance and cleaning figure 5-14 Opening the housing lid Housing lid Bearer Boring for the fixing screw Filter mat holder Open the upper filter mat holder with the aid of a screwdriver by levering it off and exchange the upper filter mat (see fig. 5-15,  139). figure 5-15 Exchanging the upper filter mat Upper filter mat holder Upper filter mat...

  • Page 140: Checking The Temperature Control

    Maintenance and cleaning Alyza IQ NH4 HR Lower filter mat Position yourself under the Alyza IQ housing. Open the lower filter mat holder and exchange the filter mat as done with the upper filter mat holder. figure 5-16 Exchanging the lower filter mat Lower filter mat Lower filter mat holder Close the lower filter mat holder again.

  • Page 141: Maintenance Activities At The Power Supply Box

    Alyza IQ NH4 HR Maintenance and cleaning Info control in the Alyza menu / tab . All temperatures (temperature inside the housing, temperature within the measuring unit) and the operating condition of the ventilators, heating and cooling unit are documented. Maintenance activities at the power supply box WARNING If the power supply is connected incorrectly, there may be...
  • Page 142 Maintenance and cleaning Alyza IQ NH4 HR Switching off the Switch off all filtration pumps (STOP). power supply Switch off the 24 V power supply. Switch the power line potential free. Removing the Unscrew the 2 fixing screws of the cover (on the top right side in the mounting plate housing) and remove the cover of the ACM.
  • Page 143 Alyza IQ NH4 HR Maintenance and cleaning figure 5-17 Mounting plate Mounting plate Fixing screw at the upper edge Fixing nuts at the lower edge Switch box with 24 VDC switch Remove the mounting plate:  Lift the mounting plate upward over the threaded pins. ...
  • Page 144 Maintenance and cleaning Alyza IQ NH4 HR figure 5-18 Connections of the power supply box Power supply module Ventilator Power supply filter Connecting terminals for the heat tracing lines 4 - 7: yellow/green (protective earth conductor) 8 - 11: gray 12 - 15: blue Cable glands for the power supply of the heat tracing lines: intake line and...

  • Page 145: Emptying The System Manually

    Alyza IQ NH4 HR Maintenance and cleaning Make sure that no cable touches the power supply filter. Closing the power Remount the lid of the power supply box and screw tight all nuts with supply box safety disks as far as they will go (0.4 Nm). The power supply box is closed and protected against dust and mois- ture.
  • Page 146 Maintenance and cleaning Alyza IQ NH4 HR Emptying the For all activities at the open measuring unit: system manually  Note the environmental conditions (see fig. 3.3.1,  27).  With low ambient temperatures, make sure that the liquids do not freeze while the maintenance activities are carried out.
  • Page 147 Alyza IQ NH4 HR Maintenance and cleaning NOTE Damaged ChemBags may leak. To avoid damage, the ChemBags must not be folded near the connector. Hold the ChemBags at the connector, with the liquid downward. To suspend the ChemBags from the supporting rod: Carefully turn the ChemBags upside down, without folding the ChemBags or tubes.
  • Page 148 Maintenance and cleaning Alyza IQ NH4 HR Unscrew the sample tube from the overflow vessel. Protect the sample tube against loss of liquids and against the penetra- tion of dust and dirt (e.g. with rubber plugs or absorbent paper). Keep some absorbent paper ready to absorb small quantities of leaked liquids at the MultiPort valve.

  • Page 149: Systemcheck

    Alyza IQ NH4 HR Maintenance and cleaning Now carry out further actions, e.g.  Cleaning  Troubleshooting  Exchanging components (see section 5.5 Installing / exchanging the ChemBags, MPV, tubes,  113)  Transport, storage (see section 6.3 Transport, storage,  161) 5.11 SystemCheck The SystemCheck function automatically checks whether the Alyza IQ is oper- able.
  • Page 150 Maintenance and cleaning Alyza IQ NH4 HR If an error occurs during the check of a component, the System- Check function is canceled and an error message is created. No following checks will be performed. Eliminate the error and then start the SystemCheck function manu- Main ally to check the success of the maintenance (Alyza menu, tab tenance...

  • Page 151: Maintenance And Cleaning (Complex Activities)

    Alyza IQ NH4 HR Maintenance and cleaning (complex activities) Maintenance and cleaning (complex activi- ties) Decommission the Alyza IQ prior to carrying out one of the following activities:  Dismounting the measuring unit (e.g. for complex maintenance activities in the measuring unit) ...
  • Page 152 Maintenance and cleaning (complex activities) Alyza IQ NH4 HR figure 6-1 Measured value display of the Alyza IQ (example Alyza IQ) Using the <C> key, switch to the Alyza menu. Maintenance tab. Using < >, switch to the figure 6-2 Tab Maintenance (example Alyza IQ) STOP Alyza IQ Carry out the...

  • Page 153: Decommissioning The Measuring Unit

    Alyza IQ NH4 HR Maintenance and cleaning (complex activities) 6.1.2 Decommissioning the measuring unit Open the Manual maintenance menu. Prepare to open measuring unit Select the function, Follow the instructions on the display. The procedure starts the temperature adjustment of the measuring unit. Maintenance Drain the tubes ( /Manual maintenance / Drain the system...
  • Page 154 Maintenance and cleaning (complex activities) Alyza IQ NH4 HR Alyza IQ , housing open Switch box 24V switch (at the switch box) 3 plugs at the switch box Sample tube Connection sample tube to overflow vessel Connection sample feed tube to overflow vessel (quick fastener) Waste tube of the measuring unit Fixation of the measuring unit to the cooling unit...

  • Page 155: Decommissioning For Transport Or Storage

    Alyza IQ NH4 HR Maintenance and cleaning (complex activities) WARNING Dangerous chemicals. Improper use of chemicals can cause damage to your health. Heed the following rules:  Read the labels of the ChemBags and follow the safety instructions  Wear protective equipment (protective goggles, chemical resistant gloves) If the filtration pumps have already been in operation, sample liquid may escape when the tubes and liquid lines are un-...

  • Page 156: Complex Maintenance- And Cleaning Activities In The Measuring Unit

    Maintenance and cleaning (complex activities) Alyza IQ NH4 HR Remove the remaining sample (approx. 3 ml) from the overflow vessel:  Open the lid of the overflow vessel.  Remove any remaining sample from the overflow vessel (e.g. using a plastic pipette). ...
  • Page 157 Alyza IQ NH4 HR Maintenance and cleaning (complex activities) Check the collection tray for moisture. In case of larger amounts of moisture: Dry the collection tray before removing it (see section 5.5.6 Check the collection tray under the ChemBags for liquids,  121). Unscrew the 2 fixing screws of the cover lid of the control unit ACM and remove the cover lid of the ACM.

  • Page 158: Carrying Out Complex Maintenance Activities

    Maintenance and cleaning (complex activities) Alyza IQ NH4 HR Protect the cables, tubes, and measuring unit against loss of liquids and against the penetration of dust and dirt (e.g. with rubber plugs or absor- bent paper). Remove the cables hanging to the front of the measuring unit from the grooves at the back cover and lay them down.
  • Page 159 Alyza IQ NH4 HR Maintenance and cleaning (complex activities) figure 6-4 Measuring unit, dismantled and open 1 Two screws to fasten the rear cover 2 Locking device of the MultiPort valve (MPV) 3 Waste tube Tilt the rear cover of the measuring unit away to the rear. figure 6-5 Lid of the waste collector with screw 1 Photometer...
  • Page 160 Maintenance and cleaning (complex activities) Alyza IQ NH4 HR Loosen the screw on the lid (3) of the waste collector. Pull the lid (3) of the waste collector with the two tubes upwards until the bottom of the opened waste collector is visible. If there is standing liquid in the waste collector, remove possible block- ages in the waste tube: ...

  • Page 161: Installing The Measuring Unit

    Alyza IQ NH4 HR Maintenance and cleaning (complex activities) 6.2.4 Installing the measuring unit Position the rear cover of the measuring unit at the measuring unit. Fix it to the measuring unit by tightening the 2 screws. Close the measuring unit with the front cover. Press the cables of the measuring units into the grooves of the back cover from the rear and let the plugs hang to the front.

  • Page 162: Preparing The Alyza Iq For Transport Or Storage

    Maintenance and cleaning (complex activities) Alyza IQ NH4 HR Even minor damage to tubes or ChemBags due to mechanical stress (e.g. pressure, shock etc.) or thermal impact (e.g. frozen liq- uids) can cause consequential damage due to spilled liquids. 6.3.2 Preparing the Alyza IQ for transport or storage Decommission the Alyza IQ (see section 6.1 Decommissioning, ...
  • Page 163 Alyza IQ NH4 HR Maintenance and cleaning (complex activities) WARNING When the power supply box is open, there is a danger to life from electric shock. Observe the following points:  The power supply box may only be opened when it is de-energized.

  • Page 164: Recommissioning The Alyza Iq

    Maintenance and cleaning (complex activities) Alyza IQ NH4 HR Preparing the For transport, pack the ChemBags leakproof and protected against any ChemBags for mechanical stress (e.g. shock, folding) and thermal impact (e.g. tem- transport or peratures too high or too low). storage Checklist ...

  • Page 165: What To Do If

    Alyza IQ NH4 HR What to do if ... What to do if ... Display “----” Information on the cause of the indication is in the log book and in Status the Alyza menu / tab Cause Remedy No (valid) measured value Start measurement and wait for the mea- available surement to be finished (02 min)
  • Page 166 What to do if ... Alyza IQ NH4 HR Cause Remedy  View the log book message Status ERROR The liquids from one or sev-  Check the filling level of the ChemBags eral ChemBags are not trans-  Check the connection of the tubes ported to the MultiPort valve ...
  • Page 167 Alyza IQ NH4 HR What to do if ... Cause Remedy Maintenance Power failure  In the Alyza menu (tab start the Alyza IQ.  If necessary, activate the function "Auto- matic start after power failure“ Unknown See log book or Alyza menu / tab Status (display details with <OK>) Display of OFL Cause...
  • Page 168 What to do if ... Alyza IQ NH4 HR Implausible Cause Remedy measured values Erroneous measurement Wait for another measurement Calibration error  Repeat calibration  Check the calibration standards  Check the connection of the calibra- tion standards  Refill the tubes for the ChemBags with standard solutions Maintenance Alyza menu / tab...
  • Page 169 Alyza IQ NH4 HR What to do if ... Measuring mode Cause Remedy cannot be set Alyza IQ is not stopped Stop the Alyza IQ Red signal LED at Cause Remedy the measuring unit LED lights up red. Check and, if necessary, eliminate the Error causing the STOP of the error message in the log book Alyza IQ...
  • Page 170 What to do if ... Alyza IQ NH4 HR Storing the Cause Remedy detailed operating data of the e.g. request by service depart- Transmit the detailed operating data of Alyza IQ ment your Alyza IQ to a USB memory device (see section 4.6.2, ...

  • Page 171: Technical Data

    Alyza IQ NH4 HR Technical data Technical data Measuring characteristics NH4-N, NH3-N, NH4 Berthelot method in conjunction with an LED photometer Measuring method Measuring ranges Measur- Measuring Measuring ranges Reso- Accuracy and resolution ing range mode (cita- lution tion form) Measuring NH4-N and 0.001...

  • Page 172: Application Conditions

    Technical data Alyza IQ NH4 HR Measuring range Detection limit 0,01 mg/L NH4-N / NH3-N 0.1 mg/L NH4-N / NH3-N Application conditions The Alyza IQ analyzer is designed for online measurements of the ammonium Suitability and concentration (NH4) in aqueous samples (e.g. in the effluents of waste water areas of treatment plants), and to control and regulate the elimination of ammonium in application...

  • Page 173: General Data

    Alyza IQ NH4 HR Technical data General data Dimensions and Component Height x width x depth Weight (without chemicals) weight Housing with 825 x 675 x 445 mm up to approx. 50 kg components (depending on equipment) Front view: Lateral view: Required space Space to open the lid approx.
  • Page 174 Technical data Alyza IQ NH4 HR 1050 ~ 20-50 figure 8-2 Dimension drawing of Alyza IQ, installation on a mounting stand (dimensions in mm) 1050 ~ 500 Height is variable Rail pipe diameter max. 50 mm figure 8-3 Dimension drawing of Alyza IQ, rail mounting (dimensions in mm) Connection to the IQ S with the IQ S cable...
  • Page 175 Alyza IQ NH4 HR Technical data Ambient Temperature range conditions  Mounting/installation/ + 5 ... + 40 °C (+ 41 ... +104 °F) maintenance  Operation - 20 … + 40 °C ( - 4 … + 104 °F)  Storage - 20 …+ 50 °C (- 4 …...

  • Page 176: Electrical Data

    Technical data Alyza IQ NH4 HR Accessories Mounting stand, wall Rails: Stainless steel V2A, mount and rail mount Screws etc.: stainless steel V2A, V4A Filtration unit Membrane surface of the filter plate: 1300 cm Cut-off limit: < 0.45 µm Max. operating temperature: 45 °C (113 °F) Max.

  • Page 177: Consumption Data

    Alyza IQ NH4 HR Technical data Cable (requirements) Europe: IEC 60332-1-2 USA, Canada: UL 2556 VW-1 Details:  Temperature resistant in the range -20 °C…+80 °C (-68 °C…+176 °F),  Weather-resistant (year-round)  Watertight (cable sheath)  Copper wire Power consumption 300 - 1600 W Alyza IQ (depending on the length of the heat tracing)

  • Page 178: Lists

    Lists Alyza IQ NH4 HR Lists Explanation of the messages This chapter contains a list of all message codes and the related message texts that can occur in the log book of the IQ S system for the Alyza IQ an- ENSOR alyzer.
  • Page 179 Alyza IQ NH4 HR Lists Message code Message text EI2552 Operational voltage too low, no operation possible * Check installation and cable lengths, Follow installation instruc- tions * Power supply module(s) overloaded, add power supply module(s) * Check terminal and module connections * Defective components, replace components Operational voltage too low...
  • Page 180 Lists Alyza IQ NH4 HR Message code Message text ES5552 Communication failure with ACS * Check ACS connection ES6552 Pressure on port xxx too high. * Check the liquid circle for erros and replace maintenance parts if necessary. Dosing of xxx failed several times ES7552 * Make sure that tubes, ChemBags and couplings are free from air bubbles.
  • Page 181 Alyza IQ NH4 HR Lists Message code Message text New ACS board, missing backup! ESK552 * Contact service ACS software too old, no restore to ACS board! ESL552 * Update software ACS backup error %ld ESM552 Power output into IQ SensorNet too high ESO552 * Check installation and length, see installation instruction * Power supply overloaded, add power supply...

  • Page 182: Informative Messages

    Lists Alyza IQ NH4 HR Message code Message text Error MPV blocking: Alyza IQ was stopped. System was drained. ESX552 * Check MPV and piping to syringe pump * Contact service Error MPV blocking: Alyza IQ was stopped. ESY552 * Drain the system manually (see operating manual) * Check MPV and piping to syringe pump * Contact service The drain of waste from the measuring unit blocked.
  • Page 183 Alyza IQ NH4 HR Lists Message code Message text Calibration error: dosing or pressure error xxx. IC8552 Calibration is rejected. Measurement will be continued with active valid calibration! * Make sure that tubes, ChemBags and couplings are free from air bubbles.
  • Page 184 Lists Alyza IQ NH4 HR Message code Message text Temperature control not working properly! ISE552 * Caution: frost danger if ambient temperature falls below 0°C * Power interruption of housing heating * Contact service Temperature control not working properly! ISF552 * Heating of the basic instrument * Caution: frost danger if ambient temperature falls below 0°C * Contact service...
  • Page 185 Alyza IQ NH4 HR Lists Message code Message text Temperature control not working properly! ISQ552 * Housing fan turned off * Contact service Temperature control not working properly! ISR552 * Heating of the basic instrument turned off * Caution: frost danger if ambient temperature falls below 0°C * Contact service ISS552 Temperature control not working properly!

  • Page 186: Status Info

    Lists Alyza IQ NH4 HR Status info The status info is a coded piece of information on the current status of a sensor. Each sensor sends this status info to the controller. The status info of sensors consists of 32 bits, each of which can have the value 0 or 1. Status info, 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...

  • Page 187: Disposal

    IQ S Disposal ENSOR Disposal Handle and dispose of all waste in compliance with local laws and regulations. EU only: Correct disposal of this product — WEEE Directive on waste elec- trical and electronic equipment This marking on the product, accessories or literature indicates that the product should not be disposed of with other waste at the end of its working life.

  • Page 188: Appendix

    Appendix Alyza IQ NH4 HR Appendix 11.1 Glossary Logarithmic measure for the absorption of the sample; negative Absorbance decadic logarithm of the transmission. To manipulate a measuring system so that the relevant value (e. g. the Adjusting displayed value) differs as little as possible from the correct value or a value that is regarded as correct, or that the difference remains within the tolerance.
  • Page 189 Alyza IQ NH4 HR Appendix Safety datasheets (Material Safety Data Sheets). Usually, the chemi- MSDS cals manufacturers provide safety datasheet with the chemicals deliv- ered. The safety datasheets provide security relevant information on the substances delivered. MSDS can also be found on the Internet. Legal designation for the owner of the system.
  • Page 190 Appendix Alyza IQ NH4 HR ba77276d02 03/2025...
  • Page 192 Xylem also provides a leading portfolio of smart metering, network technologies and advanced analytics solutions for water, electric and gas utilities. In more than 150 countries, we have strong, long-standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise with a strong focus on developing comprehensive, sustainable solutions.

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