020901_swan ami sodium p

AMI Sodium P Version 3.00 and later

A-96.250.211 / 050913

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SWAN sets the standard

Customer SupportSWAN and its representatives maintain a fully trained staff of technical specialists around the world. For any technical question, contact your nearest SWAN representative, or the manufacturer:

SWAN ANALYTISCHE INSTRUMENTE AGTuricaphonstrasse 298616 RiedikonSwitzerland

Internet: www.swan.ch

E-mail: [email protected]

Document Status

Title: Monitor AMI Sodium P Operator’s Manual

ID: A.96.250.211

Revision Issue

03 September 2005

© 2005, SWAN ANALYTISCHE INSTRUMENTE AG, Switzerland, all rights reserved

subject to change without notice

Table of Contents

Table of Contents

1. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Instrument Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52.1 Description of the system. . . . . . . . . . . . . . . . . . . . . . . 62.2 Display, Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72.3 Software Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92.4 Changing parameters and values . . . . . . . . . . . . . . . . 10

3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113.2 Packing list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133.4 Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . 143.5 Connecting samples and waste . . . . . . . . . . . . . . . . . . 153.6 Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.6.1 Connection scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.6.2 Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.7 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173.8 Alarm Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.9 Relay Contacts 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . 183.10 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.11 Signal Outputs 1 and 2 (current outputs) . . . . . . . . . . . 183.12 Signal Output 3 (optional) . . . . . . . . . . . . . . . . . . . . . . 193.13 Profibus DP (optional) . . . . . . . . . . . . . . . . . . . . . . . . . 19

4. Installation of electrodes . . . . . . . . . . . . . . . . . . . . . . . . . 204.1 Installation of sodium electrode . . . . . . . . . . . . . . . . . . 214.2 Installation of reference electrode . . . . . . . . . . . . . . . . 224.3 Installation of pH electrode . . . . . . . . . . . . . . . . . . . . . 234.4 Installation of reagent bottle and air filter . . . . . . . . . . . 24

5. Power up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6. Program overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

A-96.250.211 / 050913 1

Table of Contents

7. Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297.1 1-Point-Calibration: Electrode Offset . . . . . . . . . . . . . . 297.2 2-Point-Calibration: Electrode Slope . . . . . . . . . . . . . . 307.3 pH process calibration . . . . . . . . . . . . . . . . . . . . . . . . . 30

8. Grab Sample . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329.1 Maintenance Schedule. . . . . . . . . . . . . . . . . . . . . . . . . 329.2 Maintenance of sodium electrode . . . . . . . . . . . . . . . . 339.3 Maintenance of reference electrode. . . . . . . . . . . . . . . 339.4 Maintenance of pH electrode . . . . . . . . . . . . . . . . . . . . 349.5 Maintenance of flow cell and constant head . . . . . . . . 34

10. Replacement Parts for Flow Cell . . . . . . . . . . . . . . . . . . . 35

11. Error List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

12. Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

A. Profibus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

A.2 Cyclic Data Telegram. . . . . . . . . . . . . . . . . . . . . . . . . . 42

A.3 Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

A.4 DP Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45A.4.1 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46A.4.2 Diagnosis Extension. . . . . . . . . . . . . . . . . . . . . . . . . . . 47

A.5 Acyclic Data Communication . . . . . . . . . . . . . . . . . . . . 48

A.6 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

2 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualSafety Instructions

AMI Sodium P - Operator’s Manual

This document describes the main steps for instrument setup, operation and maintenance.

1. Safety InstructionsWarning NoticesThe symbols used for safety-related notices have the following significance:

WARNINGSymbols

Warning

Generally, the triangular warning symbol indicates the possibility of personal injury or even loss of life if instructions are not followed, e.g.

electrical shock hazard

harmful to health

flammable

Attention

The attention symbol indicates the possibility of equipment damage, malfunctions or incorrect process results if instructions are not followed.

A-96.250.211 / 050913 3

AMI Sodium P - Operator’s ManualSafety Instructions

WarningFor safe instrument installation and operation you must read and understand the instructions in this manual, as well as the Material Safety Data Sheets (MSDS)

Etching kit for sodium electrode (powder + liquid),Sodium calibration solution,Electrolyte for reference electrode Alcalizing reagent (e. g. Diisopropylamine)

Only SWAN trained and authorized personnel shall perform the tasks described in this document.

Attention:To prevent formation of reagent vapours close reagent bottle firmly. Check EPDM seal regularly!

4 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualInstrument Overview

2. Instrument Overview

Dual stream version monitor

Transmitter

Referenceelectrolyte bottle

Stream selectionvalve

Flow regulatingvalves

Reaction tube

Sample inlets

Waste 1

Temperature sensor

Bubble detector

Flow cell

Air filter

Constant headcover

Constant head

Reagent addition

Standard bottleholder

pH electrode(behind sodiumelectrode)

Reference electrode

Sodium electrode

Reagent bottle

Waste nozzlefor Waste 2

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2.1 Description of the system

Application Sodium measurement is used for quality control in high purity water applications and to monitor break through of mixed bed ion exchangers, condenser leaks and the prevention of caustic corrosion of turbines.

Measuringprinciple

The sodium measurement as used in this instrument is based on a proven glass ion sensitive electrode.Sodium measurements below 1 ppb require a special glass formulation for the sensing electrode response.Ammonium and pH interferences from the unconditioned sample are eliminated by a suitable reagent. The measuring limit of 0.1 ppb sodium requires the conditioning of the sample to a minimum of pH 10.5 while sample integrity has to be maintained. The best results are obtained with Diisopropylamine (DIPA).However, Ammonia is also possible.

On-lineoperation

The sample enters at the sample inlet, passes the stream selection valve and flows into the constant head. Sample flow is adjusted with the flow regulating valve(s) to guarantee overflow into waste 1.If the standard bottle holder is completely turned down, the sample is flowing from the constant head into the reaction tube.Due to different level of the constant head and the flow cell, a negative pressure is produced in the reaction tube. As a result, reagent saturated air is aspirated into the reaction tube, raising the pH of the sample to a value of 10.5, and forming a regular stream of air bubbles.The bubble stream is used to monitor the correct sample flow with the bubble detector. An inconsistant sample flow causes an interruption of the bubble formation and produces a system error.

Calibration The standard bottle is screwed in the bottle holder and turned upwards in vertical position, thus switching the sample flow from the constant head to the standard bottle. Constant pressure within the standard bottle is maintained by the pressure-equalizing tube inside the bottle.1 liter standard is consumed in approx. 10 min. The sodium electrode must reach constant readings within this time to obtain an exact calibration.For details, see Calibration, p. 29.

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2.2 Display, Keys

MeasuredValues

Display

27.5 °C

RUN

10.84 pH

14:10:27R1 1.3 ppb

2.1 ppbR2

HOLD The Input is activated. The Signal Outputs are frozen.

OFF The Input is activated, the Signal Outputs are set to 0 (0/4 mA).

GRAB manual grab sample

upper / lower limit reachedupper / lower limit not yet reached

Status Relay Contacts

Sampletemperature

blinking: fatal ErrorError

RUN normal operation

Timer

Arrows appears on two stream instrument only, indicating active stream:

measuring

on hold

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Keys

ProgramAccess, Exit

to exit a menu or command (without accepting)to move back to the previous menu level

to move DOWN in a menu list and to decrease digits

to move UP in a menu list and to increase digits

to open a selected sub-menuto accept an entry

Exit

Enter

25.4°C

RUN

10.84 pH

14:10:45R1

1.3 ppbR2

1

InstallationOperation

DiagnosticsMessages

Maintenance

Main MenuEnter

Exit

8 A-96.250.211 / 050913


2.3 Software Structure

1

Messages

OperationMaintenanceDiagnostics

Main Menu

Menu 4: OperationSubset of menu 5 - installation, but process-related. User relevant parameters that might need to be modified during daily routine. Normally password protected and used by the process-operator.

Menu 1: MessagesReveals pending errors as well as an event history (time and state of events that have occurred at an earlier point of time). It contains user relevant data.

Menu 2: DiagnosticsProvides user relevant instrument and sample data.

Menu 5: InstallationFor initial instrument set up by SWAN authorized persons, to set all instrument parameters. Can be protected by means of a password.

Menu 3: MaintenanceFor instrument calibration, relay and signal output simulation, to set the instrument time. It is used by the service personnel.

Installation

1.1

Pending ErrorsMessage List

Messages

2.1

InterfaceI/O StateSample

IdentificationSensors

Diagnostics

3.1

CalibrationSimulation

Maintenance

Set Time 01.01.05 16:30:00

4.1

LoggerRelay Contacts

SensorsSignal Outputs

Operation

5.1

InterfaceMiscellaneousRelay Contacts

SensorsSignal Outputs

Installation

A-96.250.211 / 050913 9


2.4 Changing parameters and values

Changingparameters

The following example shows how to change the channel selection interval from 30 min to 45 min (Operation mode):

Changingparameter

values

Highlight the menu item indicating the parameter you want to change.

Press .

Press or to highlight the required parameter.

Press to confirm the selection (or [Exit] to keep the previous parameter).

The selected parameter is indicated (but not saved yet).

Press .

Yes highlighted, press to save the new parameter. The system reboots, the new parameter is set.

Enter

Enter

Exit

Enter

4.1.3Sensors

Hold after Cal. x SecFilter Time Const. x Sec

Interval 1 MinCiso. Free chlorine30 min

Interval.15 min

60 min

4.1.3Sensors

Hold after Cal. 300 SecFilter Time Const. 30 Sec

Interval 45 MinCiso 45900No

Save ?Yes

4.1.3Sensors


Ciso 45900Interval 30 min

45 min

4.1.3Sensors


Interval 45 minCiso 45900

5.3.1.1.1

Alarm High 20.00 ppmAlarm Sodium

Alarm Low 0.00 ppbHysteresis 10.0 ppbDelay 5 Sec

Select parameter and press .

to set required value.

to confirm new value.

to exit the menu.

Enter

Enter

Exit

5.3.1.1.1Alarm Sodium

Alarm Low 0.00 ppbHysteresis 10.0 ppbDelay 5 Sec

Alarm High 10.0 ppb

10 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualInstallation

3. Installation

3.1 UnpackingThe box and its content must be checked for shipping damage. Check the content with the packing list. See Packing list, p. 12

To avoid potential shock and/or damage to the instrument do not connect the AC power until instructed to do so.

AttentionAll optionally connected devices (e.g. recorder) must conform to the minimum system specifications of in/outputs described on the data sheet.Power supply must conform to the instrument’s specifications.

Sample re-quirements:

Min. flow rate: 6 l/hSample pressure inlet: 0.3 - 3 bar (4 - 43 PSI)Temperature: 5 - 45 °C (41 - 113 °F)Suspended solids: < 10 ppm, no oil, no greaseSample pH: ≥ pH 7.0Ammonium content: < 10 ppmAcidity: < 10 meq/l

On-site re-quirements:

The analyzer site must permit connections to:

Sample inlet: SERTO fitting for FEP tube, outer diameter 6 mm. Drain: 1/2” hose nozzle which must end in convenient atmospheric waste of sufficient capacity.

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3.2 Packing listInstrument mounted on panel with flow cell and constant headSodium electrode, reference electrode, temperature sensor, bubble detector, pH sensor2 empty standard bottles, each 1 lEPDM seals and FEP tubesAir filter100 ml filling solution for reference electrode100 ml sodium standard 1000 ppm100 ml etching solutionGL45 cap with reagent headSample tube LD-PE 6x4 mm, 3 m and waste tube PVC 20x15 mm, 2 m.

Reagent Diisopropylamine is not included in delivery. Please buy from your local chemical supplier. E.g. Merck (6 x 1l: 803646.1000) or Fluka (1 x 1l: 38300) or Riedel-de Haen (1 x 1l: 62580). Adapter for Merck bottle is available.

12 A-96.250.211 / 050913


3.3 Dimensions

Mounting: Large panel: Distance between mounting holes: 374x824 mmSmall panel: Distance between mounting holes: 254x824 mmScrews: 6 mm diameterFor ease of operation mount the instrument by positioning the display at eye level.

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3.4 Installation Checklist

Check Instrument’s specification must conform to your AC power ratings. Do not turn on power until instructed to do so.

On site requirements

AC power outlet with ground connection and 20 VA.Sample line with 100 ml/min and 0.3 - 3 bar (4 - 43 psi).Waste line(s) with atmospheric drain.See Connecting samples and waste, p. 15 and Electrical Wiring, p. 15

Installation Mount the instrument in vertical position. Display should be at eye level.Insert the constant head cover. Connect the waste nozzle with the flow cell. Connect the sample and waste line(s).

Electrical Wiring

Connect all external devices like limit switches, current loops and printer.Connect power cord; do NOT switch on power yet!

Electrodes Sodium electrode: Etch, rinse well and check for air bubbles inside the electrode. Install. Connect to cable S.Reference electrode: Install KCl bottle, check the grounded glass sleeve and install. Puncture the KCl bottle. Connect to cable R.pH electrode: Remove protective cap. Install. Cable: pH.

Reagent and filter connec-tions

We recommend to use DIPA to operate the instrument. Use a reagent bottle with either G45 thread (Schott) or a bottle from Merck with a thread adapter. Close the bottle well to prevent the formation of reagent vapours. Install air filter.

Power-up Turn on the sample flow and wait until the measuring cell is com-pletely filled.Adjust the sample flow until the bubble stream is regular.Switch on power.

Instrument set-up

Program all parameters for external devices (interface, recorders, etc.). Program all parameters for instrument operation (limits, alarms).

Standard and calibration

Rinse the standard bottle well with deionized water. Prepare the sodium standard according to your needs, best using a laboratory volumetric flask and a pipettor. Make sure the standards are programmed correctly. Perform a two point calibration.

14 A-96.250.211 / 050913


3.5 Connecting samples and waste

Sample inlet:Use plastic tubes (FEP, PA, or PE 4x6 mm) to connect the sample lines.Attention! Never use steel tubings or fittings directly on the acrylic glass constant head.Mounting of SERTO fittings:

Waste:Connect the waste nozzle to the sample outlet of the flow cell. Then connect the 1/2” tube to the waste nozzle and place it into the atmospheric drain. If you have a 2-channel instrument you need 2 drain tubes.

3.6 Electrical WiringWarning: Always turn off AC power before manipulating electric parts.Grounding requirements: Only operate the instrument from an power outlet which has a ground connection.Make sure the power specification of the instrument correspond to the power on site.

Installation ofoptional

cables

Unless noted otherwise use stranded wire of max. 1.5 mm2 (AWG14) with end sleeves.

cable

conduit

washer

sealing

nut

compression knurled nut

ferrule

A-96.250.211 / 050913 15


3.6.1 Connection scheme

16 A-96.250.211 / 050913


3.6.2 Power Supply

Terminal 1 Phase LTerminal 2 Neutral N

3.7 Sensors

Connection of sensors:

Temperature

pH

reference

sodium

on front-end board.

power supply connector

Neutral

Power

The protective earth cable (ground) MUST be connected to the provided grounding screw.

A-96.250.211 / 050913 17

1


3.8 Alarm RelayNote: Max. load 1 A / 250 VACAlarm output for system errors. Error codes see Error List, p. 37.Open during normal operation. Closed on error and loss of power.Terminals 10/11.

3.9 Relay Contacts 1 and 2

Note: Max. load 1 A / 250 VACRelay 1: Terminals 6/7Relay 2: Terminals 8/9For programming see Program overview, p. 26, Menu Installation

3.10 Input

Note: Use only potential-free (dry) contacts.Terminals 16/42For programming see (Program overview, p. 26) Menu Installation

3.11 Signal Outputs 1 and 2 (current outputs)

Note: Max. burden 510 Ω.If signals are sent to two different receivers, use signal isolator (loop isolator).

Signal output 1: Terminals 14 (+) and 13 (-)Signal output 2: Terminals 15 (+) and 13 (-)For programming see Program overview, p. 26, Menu Installation

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3.12 Signal Output 3 (optional)

Requires the additional board for the third signal output 0/4 - 20 mA PCB

Note: Max. burden 510 Ω.The third signal output is installed in the holder on the main board. You can operate either 3. signal output OR communication interface, not both!Terminal 38 (+) and 37 (-).For programming see Installation Signal output 3 in Program overview, p. 26.

3.13 Profibus DP (optional)

Terminal 37 PBBTerminal 38 PBAFor programming see Program overview, p. 26, Installation InterfaceTo connect several instruments by means of a network or to configure a PROFIBUS DP connection, see section Profibus, p. 41 at the end of this manual.Use appropriate Profibus cable.

Note: Terminate bus by means of ON/OFF switch on the RS485 PCB only. Please place protection cap on unused connection.

Third signal output 0/4 - 20 mA PCBinstalled on main board

A-96.250.211 / 050913 19

2

AMI Sodium P - Operator’s ManualInstallation of electrodes

4. Installation of electrodes

Position ofsensors in

the flow cell

The temperature sensor is installed next to the pH electrode.

pH electrode cable marked pH

Bubble detector

Referenceelectrodecablemarked R

Sodiumelectrodecablemarked S

0 A-96.250.211 / 050913


4.1 Installation of sodium electrode

General Sodium electrodes are sensitive, electrochemical devices with a very high internal impedance. To maintain correct operation make sure that:- the sensing glass bulb stays clean- no air bubbles are trapped in the glass bulb of the electrode- the electrical connectors stay clean and dry.

Unpacking The electrode arrives with protective caps on the sensing bulb as well as on the electrical connector. Remove the cap from the sensing bulb with a careful turning and pulling movement. Remove the cap from the connector only when the electrode is mounted in the measuring cell.

Cleaning andetching

Only use the original etching solution from SWAN. The etching solution is delivered in two bottles, one containing the acidic solvent, the other containing the fluoride salt. Dissolve the salt in the solvent before use and mark the date of mixing.Warning:Diluted acidic fluoride solutions are harmful and irritating. Harmful if ingested, irritates skin and eyes. Contains less than 0.5% hydrofluoric acid. Contains less than 1% acetic acid. For laboratory use only.Short contact with skin is harmless, nevertheless wash with lots of water.Attention:Once the fluoride salt is dissolved, the life time of the solution is limited to 6 months!Rinse the electrode with distilled water. If etching the electrode for the first time, insert the electrode for 2 minutes into the etching solution.Rinse the electrode with distilled water. Do not dry the sensing glass bulb!

Mounting First slip the black nut and then the washer on the electrode. Wet the O-ring and slip carefully on the electrode. Make sure no air bubbles are trapped between glass bulb and glass tube by swinging the electrode with sensing bulb downwards, like a clinical thermometer. Insert the electrode into the measuring cell and push down completely. Screw the nut finger-tight. Remove the protective cap from the connector and fasten the cable marked S.

Xi

A-96.250.211 / 050913 21

2


Make certain the sleeve only is rotated. Avoid twisting the cable. Store the protective caps for later use. See Installation of electrodes, p. 20.

4.2 Installation of reference electrode

General Reference electrodes are sensitive, electrochemical devices with a high internal impedance. The SWAN reference electrode is a double junction Calomel / KCl type electrode. The outer liquid junction is a liquid glass sleeve, guaranteeing easy maintenance and long life time.To maintain correct operation make sure that:- the grounded glass sleeve stays clean and a KCl flow of about 1ml/day is maintained.- no air bubbles are trapped in the electrode and in the tube to the KCl reservoir.- the electrical connectors stay clean and dry.

Unpacking The electrode arrives with protective caps on the grounded glass sleeve as well as on the electrical connector. The KCl reservoir has a sealed nozzle.Remove the stopper from the electrode tubing and cut off 1 cm of the nozzle of the electrolyte reservoir. Connect the reservoir to the electrode tubing.Fix the reservoir upside down in the holder under the transmitter. Puncture the top of the bottle to allow pressure equilibration!Remove the protection cap from the grounded glass sleeve with a turning and pulling movement.Hold the electrode horizontally at or above the level of the reference fill solution (see drawing below). Take a tissue and move, with a slight twist, the grounded glass sleeve carefully backwards. After that, push the grounded glass sleeve back to the original position and place the electrode in the measuring cell.See Installation of electrodes, p. 20.

Attention: Do not let electrolyte drop on the measuring cell!Clean it carefully because concentrated KCl is corrosive.

To keep the connector clean and dry, remove the protective cap only when the electrode is mounted in the measuring cell!

2 A-96.250.211 / 050913


Reference-Electrode body

Grounded glass sleeve opened

Electrolyte will flow out through this hole

Push to close (slightly turning movement)

Pull back to open

Grounded glass sleeve closed

Mounting Slip first the black nut and then the washer on the electrode. Wet theO-ring and slip carefully on the electrode. Make sure that thegrounded glass sleeve stays in place.Insert the electrode into the measuring cell and push down completely. Screw the nut finger-tight.Remove the protective cap from the electrical connector and fasten the cable marked R. Make certain the sleeve only is rotated. Avoid twisting the cable. Store the protective caps for later use.

4.3 Installation of pH electrode

Mounting Take of the protective cap from the electrode tip by a careful turning and pulling movement. First slip the black nut and then the washer on the electrode. Wet the O-ring and slip carefully on the electrode. Insert the electrode into the measuring cell (see Installation of electrodes, p. 20) and push down completely. Fasten black nut finger-tight.Remove the protective cap from the electrical connector and fasten the cable marked pH. Make certain the sleeve only is rotated. Avoid twisting the cable.

A-96.250.211 / 050913 23

2


4.4 Installation of reagent bottle and air filterPlease note:We recommend to operate the instrument withdiisopropylamine as reagent for the pH correction.

If ammonia is used as reagent, analysis below 1 ppb NA is NOT possible! Residual water in the bottle must be disposed as chemical waste.

Attention:To prevent formation of reagent vapors:- close reagent bottle firmly- check EPDM seal regularly- install air tubes and filter

properly

Attention:The tube inside the reagent bottle must connect to the tube from the air filter.

Insert the air filter in the holder on the right of the transmitter.

air filter

holder

from airfilter to constanthead

nut

EPDM seal

reagent bottle

2 1

4 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualPower up

5. Power upAfter the analyzer is installed according to the previous instructions, connect the power cord.

Do not switch on power, yet!

Open sampleflow

Open the flow regulating valve to allow sample flow into the constant head and into the waste.Observe the formation of air bubbles in the reaction tube and let the cell fill up.Only then turn on power.First, the analyzer performs a self test, displays the firmware version and then starts normal operation.

Programming Program all parameters for external devices (interface, recorders, etc.). Program all parameters for instrument operation (limits, alarms). See chapter Program overview on the next page.

Calibration ofsodium

electrode

Rinse the standard bottle well with deionized water. Prepare the sodium standard according to your needs, best using a one liter plastic volumetric flask and pipettor. Make sure the standards are programmed correctly. Perform a two point calibration. See Calibration, p. 29

A-96.250.211 / 050913 25

2

AMI Sodium P - Operator’s ManualProgram overview

Pending Errors 1.1*Messages(Main Menu 1) Message List 1.2*

Designation AMI Sodium P Version V3.00-07/05

Instrument 2.1.3.1*Identification Factory Test Motherboard

Front End

Years 2.1.4.1*Operating Time Days

Hours:

Current Value Raw Value

Sodium Sensor Cal. History 2.2.1.5*

Current ValueSensors pH electrode Raw Value

Cal. History 2.2.2.5*

Miscellaneous Case Temp. 2.2.3.1*Diagnostics(Main Menu 2)

Sample ID 2.3.1*Temperature

Sample Nt5kSample flow Raw value

Alarm Relay 2.4.1*Relay 1/2

I/O State InputSignal Output 1/2

Interface Protocol (only with optional additional board for the

Baud rate 3rd signal output)

* Menu numbers

6. Program overview

6 A-96.250.211 / 050913


Calibration Standard Sodium 3.1.1*Process pH 3.1.2*

Alarm Relay 3.2.1*Maintenance Simulation Relay 1/2(Main Menu 3) Signal Output 1/2

Magnetic Valve 3.2.6*

Set Time 3.3*

Filter Time Const. 4.1.1*Sensors Hold after Cal. 4.1.2*

Range Low 4.2.1.100*Signal Output 1 Range High 4.2.1.200*

Signal Outputs Range High 4.2.2.103*

Signal Output 2 Range Low 4.2.2.203*

Operation(Main Menu 4)

Alarm Sodium 1 4.3.1.1*Alarm Relay Alarm Sodium 2 4.3.1.2* acc.

Alarm pH 4.3.1.3* Install.

Relay ContactsRelay 1/2Input

Logger Log Interval 4.4.1* Clear Logger 4.4.2*

* Menu numbers

A-96.250.211 / 050913 27


Sensor Type

Temperature

Sensors Flow

None (choosing “none” = 1 channel)

Channels switch AutoInputFieldbus 5.1.4*

Standards Standard 1 5.1.5.1* Standard 2 5.1.5.2*

ParameterSignal Outputs Signal Output 1/2 Current Loop

Function Scaling (depends on Function)

Alarm Sodium 1 5.3.1.1* Alarm Sodium 2 5.3.1.2*

Alarm pH 5.3.1.3*Alarm Relay Sample Flow 5.3.1.4*

Sample Temp. 5.3.1.5*Case Temp. high 5.3.1.6*

Installation Case Temp. low 5.3.1.7*(Main Menu 5)

Relay Contacts Function Relay 1/2 Parameter

Limit/settings (dep. on Function)

Active 5.3.4.1*Input Signal Outputs 5.3.4.2*

Output/Control 5.3.4.3*Fault 5.3.4.4*Delay 5.3.4.5*(this menu is not active if menu 5.1.4 is set on Input)

Language 5.4.1* Set defaults 5.4.2*

Miscellaneous Load Firmware 5.4.3*Password 5.4.4* (for all menus) Sample ID 5.4.5*

Interface Protocol (only with optional additional board for

Baud Rate the 3rd signal output)

* Menu numbers

28 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualCalibration

7. CalibrationBefore each calibration etch the sodium electrode for only half a minute. Only use SWAN’s etching kit .Prepare two standards: one for each marked bottle using the 1000 ppm stock solution. The final concentration must correspond to the concentrations programmed in the instrument.

Mixing stand-ard correctly

The standard stock solution has a concentration of 1000 ppm:

7.1 1-Point-Calibration: Electrode OffsetGo to Menu 3.1.1. The instrument guides you through the complete calibration process. If you have completed the required action press <Enter> to proceed.• Unmount electrode and rinse in deionized water• Etch sodium electrode for 30 seconds and rinse well• Mount electrode and wait 2-3 minutes• Screw standard bottle 1 onto the holder and swing bottle

upwards• Wait until the process has finished• First, press <Enter> to save. Then remove bottle. • Press <Enter> for 2-point-calibration or <Exit> if you only want to

make a one-point calibration.

Amount of standard

filled up to 1 l(with high purity water!)

Result

0.2 ml (=200 µl) 200 ppb

1 ml 1000 ppb

2 ml 2000 ppb

A-96.250.211 / 050913 29

AMI Sodium P - Operator’s ManualCalibration

7.2 2-Point-Calibration: Electrode Slope• Screw standard bottle 2 onto holder and swing bottle upwards• Wait until the process has finished• First, press <Enter> to save and then <Exit> to leave calibration• Calibration successful• Swing bottle down and remove it from holder

Important: If no stable value is reached before the bottle is empty (approx. 10 min) take the following actions:• Clean and etch the sodium electrode • Clean the reference electrode (see Maintenance, p. 32).• Check for proper flow.By pressing <Exit>, an on-going calibration can be aborted at any time.During calibration procedure plus programmed delay time the signal outputs are frozen. If the delay time is 0 the outputs show the measured value. During calibration delay, HOLD is displayed.

7.3 pH process calibrationYou need a high quality pH meter to do the correction. We recommend to use the SWAN Chematest 25. The hand held pH meter must be calibrated correctly!

Go to Menu 3.1.2. The signal outputs and alarms are on hold.

Take the sodium electrode out of the flow cell and insert the pH electrode of your instrument instead. Wait until the value of your instrument is stable.Press <Enter>. The following screen appears (example).

Process pH

Offset 0.33 mV

Save <Enter>Process Value 10.78 pH

3.1.2.4EnterCurrent Value 10.78 pH

30 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualGrab Sample

Use and

to set required value.

press <Enter>

Remove pH electrode from the measuring cell.Remount the sodium electrode.

Press <Exit> to leave programming mode.If you get an error message, clean electrode, replace electrode.

8. Grab SampleRinse a standard bottle well and collect the grab sample. Do not use closed bottles!

Press arrow down key in normal display mode. GRAB appears in upper left corner of display

Screw the grab sample bottle into the standard bottle holder and swing upwards.

The instrument is measuring the grab sample now. Wait until the value is stable and note the result! The value will not be saved in the transmitter!

Swing down the grab sample bottle and screw off.

Press arrow down key again. Hold appears in the display (= cal delay).

Enter Process pHCurrent Value 10.78 pHOffset 0.33 mV

Save <Enter>Process Value 10.70 pH

3.1.2.4

3.1.2.5Process pHCurrent Value 10.70 pHOffset -3.80 mV

Calibration successfulpress Enter

3.1.2.4Process pHCurrent Value 10.78 pHOffset 0.33 mV

Process Value 10.70 pHSave <Enter>

Enter

A-96.250.211 / 050913 31

AMI Sodium P - Operator’s ManualMaintenance

9. Maintenance

9.1 Maintenance Schedule

Weekly or every 2 weeks

Check for regular bubble formation.Check level of reagent bottle.Check level of KCl reservoir.If necessary refill bottles.Etch sodium electrode with SWAN’s etching solution.Make a one-point calibration.

MonthlyCheck sealing of reagent bottle, replace if necessary.Etch sodium electrode in SWAN’s etching solution.Make a two-point calibration.Make a pH measurement and correct value if necessary.

YearlyReplace sodium electrode.Replace reference electrode.Replace pH sensor.If necessary, remove deposited iron in the system by washing in soft detergent and by using rust remover.If covered heavily with iron, replace reaction tube.

After long time operation

Check if reagent (DIPA) is emptyCheck if reaction tube is clean. Clean it with mild deter-gent and rinse it afterwards with high purity water. If there are still problems, replace the tube.Use only teflon paste or spray to grease parts. Silicone contaminates the whole system!

32 A-96.250.211 / 050913


9.2 Maintenance of sodium electrode

Cleaning andetching

For cleaning and etching see respective part in Installation of electrodes, p. 20

Unmounting Unscrew cable and replace the connector with the protective cap. Loose the black nut completely and take the electrode together with nut, washer and O-ring out of the measuring cell. Slip O-ring carefully over the glass sleeve and remove nut and washer.If necessary, remove any iron deposits by wiping the electrode body firmly with a soft paper tissue. Rinse the electrode with distilled water. Insert the electrode for half a minute into the etching solution.Rinse the electrode with distilled water.

Do not dry the sensing glass. Mount the electrode. See Installation of sodium electrode, p. 21

9.3 Maintenance of reference electrode

Unmounting See Unmounting, p. 33Unmount KCl reservoir. Remember that the bottle was punctured - do not spill KCl !

Cleaning Unmount the electrode. Remove any iron deposits with a soft paper tissue.Slip the grounded glass sleeve upwards with a turning and pushing movement, let about 1 ml KCl flow out, and fix sleeve finger tight with a gentle turning and pulling movement.Replace or refill KCl reservoir. Use only original SWAN KCl. Mount the electrode. See Installation of reference electrode, p. 22

A-96.250.211 / 050913 33


9.4 Maintenance of pH electrode

Cleaning Unmount the electrode as described above. Unmounting, p. 33Remove any iron deposits with a soft paper tissue.Rinse the electrode with distilled water. Insert the electrode into the etching solution for 2 minutes.Rinse it again with distilled water.

9.5 Maintenance of flow cell and constant headAttention!Never use organic solvents or scrubbing materials to clean acrylic glass parts.Use soft detergent and rinse well.

Never use silicone oil or grease to seal standard bottle holder and o-rings.Use teflon paste or spray to grease moving parts.Remove iron deposits with a rust remover (i. e. iron x).

34 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualReplacement Parts for Flow Cell

10. Replacement Parts for Flow Cell3 x Black nut3 x washer3 x O-ring (11 x 3.5 mm)

4 x screws (M4 x 25 mm)

Screw M5 x 80 mm

O-ring 20 x 2 mm

1/2” hooze nozzle

Reactiontube

Bubble Detector

ScrewM5 x 80

SERTOFitting

A-96.250.211 / 050913 35

AMI Sodium P - Operator’s ManualReplacement Parts for Flow Cell

1: Constant head cover2: Constant head tube;

O-ring 55x4mm3: Tube 2 to reagent bottle; fitting;

M6 washer4: White flow restriction tube5: Regulating valve

O-ring 3.1x1.6 mmO-ring 4.9x1.9 mm

6: SERTO fitting reaction tube7: Screw M68: SERTO fitting sample inlet

9: Overflow tube; O-ring 10x4 mm10: 3 x O-ring 4.9x1.9 mm11: 2 x O-ring 27x3 mm12: Standard bottle holder13: M3 setscrew 14: Screw M6 x 10015: O-ring 34x3.5 mm in holder

Unmounting Bottle holder:- loose M3 setscrew (13)- loose screw M6 (14)- grease O-rings only with teflon paste

1

3

4

5

6 7 8

2

9 11 12

13

14

15

10

36 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualError List

11. Error ListE0xx (bold) are fatal errors.

Error Error text Corrective action

E001 Sodium Alarm high check process

E002 Sodium Alarm low check process

E003 pH Alarm high check process

E004 Reagent empty refill reagent

E007 Sample Temp.high

check sample temperature

E008 Sample Temp. low check sample temperature

E009 Sample Flow high check sample inlet pressure, check sample flow

E010 Sample Flow low establish sample flowclean instrument

E011 Temp. shorted check wiring of temperature sensor, check temp. sensor

E012 Temp. dis-connected

check wiring of temperature sensor, check temp. sensor

E013 Case Temp. high check case temperature

E014 Case Temp. low check case temperature

E017 Control time-out check control device or pro-gramming in Installation, Relay contact, Relay 1/2

E024 Input active Information that the Input is active (see programming Installation, Input, Fault “Yes”)

E025 IC MK41T56 call service

E026 IC LM75 call service

A-96.250.211 / 050913 37

3

AMI Sodium P - Operator’s ManualError List

E027 IC PCF8574 call service

E028 EEProm Microcon call service

E029 EEProm Motherboard call service

E030 EEprom Front-End call service

E031 Calibration RecOut call service

E032 Wrong Front-End call service

E033 Power-on none, status message

E034 Power-down none, status message

Error Error text Corrective action

8 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualTrouble shooting

12. Trouble shootingThis chapter provides some hints to make trouble shooting easier. For any detailed information how to handle/clean parts please see chapter Maintenance, p. 32.For any detailed information how to program the instrument please see chapter Display, Keys, p. 7.

FAQ’s

Event Possible Reasons

Flow in the reaction tube is irregular:(Number of bubbles changes a lot or < 5)

• can be checked in Menu 2.3.1 (Sample Flow in B/s)

• Dirt and/or grease in the system. Wait 24 h, the dirt will be washed away. Otherwise Flow cell may have to be disassembled and cleaned.

• Air filter plugged or wet• Check if inlet pressure is sufficient. Adjust

with regulating valve.• Use only teflon paste or spray to grease

parts. Silicone contaminates the whole system!

A-96.250.211 / 050913 39

AMI Sodium P - Operator’s ManualTrouble shooting

Signal not stable • Check if flow is regular and sufficient.• Check electrodes, especially reference

electrode.• Electrolyte bottle must be punctured

(consumption ≈ 1ml / d)• Consumption too high: check if sleeve is

loose• Consumption too little: sleeve plugged -

clean• Check if sodium electrode has been

etched correctly. - Check if etching solution is not too old (max. 6 months from date of mixing)

• Unstable signal during calibration: - Standard is not mixed well. First, fill the bottle with the concentrated standard, using a good source of DI water for solution. Start with the low standard and prepare high standard afterwards.- Filter time constant 180 s

Electrode has a low gainCorrect Values: 55 - 62 mV/dec

• Check if the standard has been mixed correctly (see above)

• use a new standard to be sure that there is no contamination (high offset)

• Etch sodium electrode and rinse it well with high purity water afterwards

• Check sodium electrode. If there is a hair crack, replace it.

Offset out of rangeCorrect Values:100 - 140 mV

• Reagent (DIPA) empty?• Check if standard is contaminated• Check electrodes, especially reference

electrode• Electrolyte bottle must be punctured

- check electrolyte consumption (see Consumption too high: check if sleeve is loose, p. 40

• Check if tubes are mounted correctly. Compare Instrument Overview, p. 5

• Check if air filter is plugged or wet.

40 A-96.250.211 / 050913

AMI Sodium P - Operator’s ManualProfibus

A. Profibus

A.1 IntroductionThe AMI family of transmitters provides a common base for a number of analytical instruments with application specific sensor interfaces. Each instrument has a basic structure with identical functionality.

AMI instruments can (optionally) be equipped with a PROFIBUS DP-V1 interface. The interface supports the PROFIBUS-PA Profile 3.0. This part of the manual describes the functionality of the interface and the integration of the AMI family of transmitters into an automation system.

Hardware Wiring, bus terminals and connectors are not part of this manual. It should, however, be noted that the observation of the corresponding standards is of paramount importance to proper operation. Setting the transmission rate to reasonable values will help avoid communication errors.

GSD file for AMI Sodium

The PROFIBUS system requires a description of the device parameters, e. g. output data, input data, data format, data volume and supported transmission rate, so that it can integrate the field devices into the bus system. These data are contained in a Device Master File (GSD file) which is placed at the disposal of the PROFIBUS master while communication system is being commissioned.

Device bitmaps can also be integrated. These appear as icons in the network tree.The manufacturer-specific GSD file SW17C3.gsd is available for download from http://www.swan.ch

A-96.250.211 / 050913 41

http://www.swan.ch

http://www.swan.ch


A.2 Cyclic Data Telegram AMI instruments for measuring Sodium make the following modules available as input data for the cyclic data exchange:

1 Main Process Value (Sodium Channel 1 in ppb)2 Main Temperature3 Sample Monitoring4 2nd Process Value (pH)5 3rd Process Value (Sodium Channel 2 in ppb)6 Control AMI7 Diagnostic Values

Table 1: Input data structure of AMI Sodium

Index input data

Data Access

Data format / comments Configuration data

0 ... 4

Analog Input block 1 Main Process Value

read

Measured value (32-bit floating point number) Status byte

0x42, 0x84, 0x08, 0x05 or 0x42, 0x84, 0x81, 0x81 or 0x94

5 ... 9

Analog Input block 2 Main Temperature

read


0x42, 0x84, 0x08, 0x05 or 0x42, 0x84, 0x81, 0x81 or 0x94

10 ... 14

Analog Input block 3 Sample Monitoring

read


0x42, 0x84, 0x08, 0x05 or 0x42, 0x84, 0x81, 0x81 or 0x94

15 ... 19

Analog Input block 42nd process value

read


0x42, 0x84, 0x08, 0x05 or 0x42, 0x84, 0x81, 0x81 or 0x94

20 ... 24

Analog Input block 53rd process value

read


0x42, 0x84, 0x08, 0x05 or 0x42, 0x84, 0x81, 0x81 or 0x94

25 ... 44

Diagnostic Values

read 5 Measured values (32-bit

floating point numbers)

0x45, 0x93, 0x08, 0x08, 0x08, 0x08, 0x08 0xE9

42 A-96.250.211 / 050913


Table 2: Output data structure of AMI Sodium

A.3 Data FormatsEach measured value has the same format: one four-byte (32-bit) floating-point value in IEEE 754 Short Real Number format and a status code byte referring to the measured value. There are four quality states, 16 sub-status values (not all defined) for each quality state, and four limit states for the measured value indicated in its associated status byte (see table 3 - 6)

Table 3: Out Value and Status

Index output data

Data Access

Data format / comments Configuration data

0 ... 1

Control AMI (SP_D)

write

Byte 0

Bit Description 0 Relay 1

0 = open 1 = close

1 Relay 2 0 = open 1 = close

2..7 Not used Byte 1

Bit Description 0 Hold 1 Control Off 2 .. 7 Not used

0x82, 0x81, 0x05, 0x05 or 0x82, 0x81, 0x84, 0x82 or 0xA1

Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Analog values in IEEE 754 Format

Status

A-96.250.211 / 050913 43


Table 4: Status Code Byte

Table 5: Status Code of the Measured Value

7 6 5 4 3 2 1 0 Quality Sub-status Limits Meaning

0 0 bad 0 1 uncertain 1 0 good

0 0 ok 0 1 low limited 1 0 high limited

The sub-status has a different quality

depending on the coding

1 1 constant

S tatu s co d e

D evice s ta tus M ean in g L im its

0x08

B A D

Tem p . sensor no t connec ted

0x0C

B A D

device fa ilu re

0x10

B A D

Tem p . sensor short c ircu it

0x47

U N C E R TA IN

las t usab le va lue (H O LD )

C O N S T

0x4B

U N C E R TA IN

S ubstitu te S e t

(M a in Tem pera tu re )

0x50

U N C E R TA IN

S ensor convers ion no t accu ra te

(N o F low )

O K

0x64 0x67

U N C E R TA IN

sensor ca lib ra tion

senso r ca lib ra tion , ho ld

O K

C O N S T

0x80

G O O D

O K O K

0x89 0x8A

G O O D

W arn ing Low

W arn ing H igh

LO W _LIM H IG H _LIM

0x8D 0x8E

G O O D

A la rm Low A la rm H igh

LO W _LIM H IG H _LIM

44 A-96.250.211 / 050913


A.4 DP Diagnostics

Table 6: DP Diagnostics

Byte Description 0 Status 1 1 Status 2 2 Status 3 3 Master address 4 Ident number (high byte) 5 Ident number (low byte)

Standard DP Diagnostics

6 Header (block length incl. Headerbyte) = 14 7 Status Type (0x81) 8 Slot Number (0x00) 9 Status Specifier

Status coding according to DP/V1

10 ..13 Diagnosis 14 ..19 Diagnosis Extension

A-96.250.211 / 050913 45


A.4.1 Diagnosis

The diagnosis object consists of 4 Bytes

Byte Bit Meaning when “1” Abbreviation 0 0 Hardware failure electronics DIA_HW_ELECTR 1 Hardware failure mechanics DIA_HW_MECH 2 - 3 Electronic temperature too high DIA_TEMP_ELECTR 4 - 5 Measurement failure DIA_MEASUREMENT 6 - 7 -

1 0 - 1 - 2 - 3 - 4 - 5 Maintenance required DIA_MAINTENANCE 6 - 7 -

2 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 -

3 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 Extension Available EXTENSION_AVAILABLE

46 A-96.250.211 / 050913


A.4.2 Diagnosis ExtensionThe AMI Sodium has many integrated quality assurance features. The values are available for performance monitoring of the analytical process in the Diagnosis Extension.

The diagnosis extension object consists of 6 Byte

Bytes 4 and 5 are reserved for future extensions.

B yte B it M ean ing w hen “1 ” D ia gnos is B it S e t 0 0 S od ium 1 A la rm h igh - 1 S od ium 1 A la rm low - 2 pH A la rm h igh - 3 pH A la rm low - 4 S od ium 2 A la rm h igh - 5 S od ium 2 A la rm low - 6 S am p le T em p . h igh D IA _M E A S U R E M E N T 7 S am p le T em p . low D IA _M E A S U R E M E N T

1 0 S am p le F low h igh D IA _M E A S U R E M E N T 1 S am p le F low low D IA _M E A S U R E M E N T 2 T em p . sho rted D IA _T E M P _E LE C T R 3 T em p . d isconn ec ted D IA _T E M P _E LE C T R 4 C ase T em p . h igh D IA _T E M P _E LE C T R 5 C ase T em p . lo w D IA _T E M P _E LE C T R 6 - - 7 - -

2 0 C on tro l T im eo u t - 1 R eagen t em p ty D IA _M A IN T E N A N C E 2 N o sam p le D IA _M E A S U R E M E N T 3 - - 4 - - 5 - - 6 C lean ing R eag en t D IA _M A IN T E N A N C E 7 Inpu t A c tive D IA _H W _E LE C T R

3 0 IC M K 41T 56 D IA _H W _E LE C T R 1 IC LM 75 D IA _H W _E LE C T R 2 IC P C F 8574 D IA _H W _E LE C T R 3 E E p rom M ic ro con D IA _H W _E LE C T R 4 E E P rom M o th e rboa rd D IA _H W _E LE C T R 5 E E P rom F ron tend D IA _H W _E LE C T R 6 C a l. R ecou t D IA _H W _E LE C T R 7 W rong F ron te nd D IA _H W _E LE C T R

A-96.250.211 / 050913 47


A.5 Acyclic Data CommunicationThe AMI Series of analytical instruments is available for a wide range of parameters. Instrument configuration depends on connected sensors and application. Therefore, configuration must be performed by trained personnel with a background in analytical methods.

It should be noted that there is a clear distinction between instruments that are configured and calibrated in an application (flow, level, pressure) and instruments that are calibrated with a known standard (pH, chlorine). AMI instruments are of the second type.

To ensure reliability and consistency of the measurement, remote configuration has not been enabled at this time.

48 A-96.250.211 / 050913


A.6 Notes

A-96.250.211 / 050913 49

AMI Sodium P - Operator’s Manual

SWANis represented worldwide by subsidiary companies and distributors.

cooperates with independent representatives all over the world.

SWAN Products

Analytical Instruments for:

High Purity Water

Feedwater, Steam and Condensate

Potable Water

Pool and Sanitary Water

Cooling Water

Waster Water and Effluents

Made in Switzerland.

50 A-96.250.211 / 050913

020901_swan ami sodium p

Documents

installation of ph electrode

maintenance of ph electrode

sodium calibration solution

electrode slope307

electrode offset297

ami sodium p version

installation checklist143

installation of electrodes