INORGANIC CARBON REMOVAL UNIT

Transcription

1 INORGANIC CARBON REMOVAL UNIT MODEL ICR OPERATION MANUAL Copyright 1998 Sievers Instruments, Inc. All rights reserved. (303) (phone) Sievers Instruments, Inc. (303) (fax) 6060 Spine Road (toll free) Boulder, CO USA DLM Rev. A

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3 IDENTIFICATION RECORDS Record the following information for future reference: Unit serial number: Warranty start date: date of receipt/installation (if installed option purchased) i

4 PRINTING HISTORY New editions are complete revisions of the manual and incorporate all previous update pages and write-in instructions. This manual will be revised as necessary. Revisions can be in the form of new editions, update pages, or write-in instructions. Revision A...July 1996 Revision B (CE mark requirements)... July 1997 Revision C (Redesign)...November 1997 Revision D (Compliance Requirements)... March, Revision A (CE mark updates)... August, 1998 TRADEMARKS & PATENTS Sievers is a trademark of Sievers Instruments Inc., and ICR is a trademark of Sievers Instruments, Inc. The instrument described in this manual is covered by one or more patents issued to and owned or pending by Sievers Instruments, Inc. CONFIDENTIALITY The information contained in this manual may be confidential and proprietary, and is the property of Sievers Instruments, Inc. Information disclosed herein shall not be used to manufacture, construct, or otherwise reproduce the goods disclosed herein. The information disclosed herein shall not be disclosed to others or made public in any manner without the expressed written consent of Sievers Instruments, Inc. Copyright 1998 Sievers Instruments, Inc. All rights reserved. ii

5 WARRANTY STATEMENT Sievers Instruments, Inc. warrants its products against defects in materials and workmanship. Sievers will, at its option, repair or replace products which prove to be defective. The warranty set forth is exclusive and no other warranty, whether written or oral, is expressed or implied. Sievers specifically disclaims the implied warranties of merchantability and fitness for a particular purpose. Warranty Periods The warranty period is one (1) year from date of installation, but in no event more than thirteen (13) months from original invoice date from Sievers. Warranty Service Warranty Service is provided to customers through phone support, Monday - Friday, from 8:00 a.m. to 5:00 p.m. Mountain Time USA. Phone support is for troubleshooting and determination of parts to be shipped from Sievers to the customer in order to return the product to operation within stated specifications. If phone support is not efficient and effective, the product may be returned to Sievers for repair or replacement. Prior to returning the product, a Repair Authorization Number (RA) must be obtained from Sievers Service Department. Shipping Sievers will pay freight charges for replacement or repaired products shipped to the customer site. Customers shall pay freight charges for all products returning to Sievers. Conditions The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance, adjustment, calibration or operation by customer. Maintenance adjustment, calibration or operation must be performed in accordance to instructions stated in the ICR s manual. Usage of maintenance materials purchased from suppliers other than Sievers will void this warranty. Limitation of Remedies and Liability The remedies provided herein are the Customer's sole and exclusive remedies. In no event shall Sievers be liable for direct, indirect, special, incidental, or consequential damages (including loss of profits) whether based on contract, tort or any other legal theory. The ICR s manual is believed to be accurate at the time of publication and no responsibility is taken for any errors that may be present. In no event shall Sievers be liable for incidental or consequential damages in connection with or arising from the use of the ICR s manual and its accompanying related materials. Warranty is valid only for the country designated on the Sievers quote or invoice. iii

6 WARNINGS WARNING: This is a safety Class I product (provided with a protective earthing ground incorporated in the power cord). The mains plug shall only be inserted in a socket outlet provided with a protective earth contact. Any interruption of the protective conductor, inside or outside the instrument, is likely to make the instrument dangerous. Intentional interruption is prohibited. WARNING: If this instrument is used in a manner not specified by Sievers Instruments Inc., the protection provided by the instrument may be impaired. WARNING: For continued protection against fire hazard replace fuses with same type and rating. NOTE: This ICR is not compatible with Sievers Docking Stations PRD 32100, PRD and PRD iv

7 ENGLISH ESPAÑOL ATENCION: WARNING: Any operation requiring access to the inside of the equipment, could result in injury. To avoid potentially dangerous shock, disconnect from power supply before opening the equipment. Cualquier operación que requiera acceso al interior del equipo, puede causar una lesión. Para evitar peligros potenciales, desconectarlo de la alimentación a red antes de abrir el equipo. ATENCION: WARNING: For continued protection against fire hazard replace fuses with same type and rating. Para protección contínua contra el peligro de fuego, sustituir el fusible por uno del mismo tipo y características. This symbol, WARNING: on the instrument indicates that the user should refer to the manual for operating instructions. ATENCION: Este símbolo, en el instrumento indica que el usuario debería referirse al manual para instrucciones de funcionamiento. WARNING: This is a safety Class I product. It must be wired to a mains supply with a protective earthing ground incorporated into the power cord. Any interruption of the protective conductor, inside or outside the equipment, is likely to make the instrument dangerous. Intentional interruption is prohibited. WARNING: If this instrument is used in a manner not specified by Sievers Instruments Inc. USA, the protection provided by the instrument may be impaired. ATENCION: Esto es un producto con clase I de seguridad. Debe conectarse a una red que disponga de tierra protectora en el cable de red. Cualquier interrupción del conductor protector, dentro o fuera del equipo, puede ser peligroso. Se prohibe la interrupción intencionada. ATENCION: Si este instrumento se usa de una forma no especificada por Sievers Instruments, Inc., USA, puede desactivarse la protección suministrada por el instrumento. FRANÇAIS DEUTSCH ATTENTION: Chaque opération à l intérieur de l appareil, peut causer du préjudice. Afin d éviter un shock qui pourrait être dangereux, disconnectez l appareil du réseau avant de l ouvrir. ATTENTION: Afin de protéger l appareil continuellement contre l incendie, échangez le fusible par un fusible du même type et valeur. WARNHINWEIS: Vor dem Öffnen des Gerätes Netzstecker ziehen! WARNHINWEIS: Für kontinuierlichen Schutz gegen Brandgefahr dürfen bei Sicherungswechsel nur Sicherungen der gleichen Stärke verwendet werden! Le symbol, ATTENTION: indique que l utilisateur doit consulter le manuel d instructions. WARNHINWEIS: Dieses, auf dem Gerät weist darauf hin, dab der Anwender zuerst das entsprechende Kapitel in der Bedienungsanleitung lesen sollte. ATTENTION: Ceci est un produit de Classe de sécurité I. L instrument doit être branché sur l alimentation secteur par un fil de secteur prévu d une prise de masse. Chaque interruption du conducteur protégeant, à l intérieur ou á l extérieur de l appareil peut rendre l instrument dangereux. Interruption intentionnelle est interdite. ATTENTION: Si l instrument n est pas utilisé suivant les instructions de Sievers Instruments, Inc., USA, les dispositions de sécurité de l appareil ne sont plus valables. WARNHINWEIS: Dies ist ein Gerät der Sicherheitsklasse I und darf nur mit einem Netzkabel mit Schutzleiter betrieben werden. Jede Unterbrechung des Schutzleiters auβerhalb oder innerhalb des Gerätes kann das Gerät elektrisch gefährlich machen. Absichtliches Unterbrechen des Schutzleiters ist ausdrücklich verboten. WARNHINWEIS: Wenn das Gerät nicht wie durch die Firma Sievers Instruments, Inc., USA, vorgeschrieben und im Handbuch beschrieben betrieben wird, können die im Gerät eingebauten Schutzvorrichtungen beeinträchtigt werden. v

8 ITALIANO ATTENZIONE: Qualsiasi intervento debba essere effettuato sullo strumento può essere potenzialmente pericoloso a causa della corrente elettrica. Il cavo di alimentazione deve essere staccato dallo strumento prima della sua apertura. DUTCH OPGELET: Iedere handeling binnenin het toestel kan beschadiging veroorzaken. Om iedere mogelijk gevaarlijke shock te vermijden moet de aansluiting met het net verbroken worden, vóór het openen van het toestel. ATTENZIONE: Per la protezione da rischi da incendio in seguito a corto circuito, sostituire I fusibili di protezione con quelli dello stesso tipo e caratteristiche. Il simbolo, ATTENZIONE: sullo strumento avverte l utilizzatore di consultare il Manuale di Istruzioni alla sezione specifica. ATTENZIONE: Questo strumento è conforme alle specifiche per I prodotti in Classe I - Il cavo di alimentazione dalla rete deve essere munito di terra. Qualsiasi interruzione del cavo di terra all interno ed all esterno dello strumento potrebbe risultare pericolòsa. Sono proibite interruzioni intenzionali. ATTENZIONE: Se questo strumento viene utilizzato in maniera non conforme alle specifiche di Sievers Instruments, Inc. USA, le protezioni di cui esso è dotato potrebbero essere alterate. OPGELET: Voor een continue bescherming tegen brandgevaar, vervang de zekering door een zekering van hetzelfde type en waarde. OPGELET: Het symbool, geeft aan dat de gebruiker de instructies in de handleiding moet raadplegen. OPGELET: Dit is een produkt van veiligheidsklasse I. Het toestel moet aangesloten worden op het net via een geaard netsnoer. Bij onderbreking van de beschermende geleider, aan de binnenzijde of aan de buitenzijde van het toestel, kan gebruik het toestel gevaarlijk maken. Opzettelijke onderbreking is verboden. OPGELET: Indien het toestel niet gebruikt wordt volgens de richtlijnen van Sievers Instruments, Inc., USA gelden de veiligheidsvoorzieningen niet meer. vi

9 Declaration of Conformity vii

10 TABLE OF CONTENTS IDENTIFICATION RECORDS PRINTING HISTORY WARRANTY STATEMENT WARNINGS DECLARATION OF CONFORMITY i ii iii iv vii 1. ANALYZER INFORMATION INSTALLATION OPERATION MAINTENANCE/TROUBLESHOOTING SCHEMATICS/PARTS LISTS 5-1 viii

11 1. ANALYZER INFORMATION The Sievers ICR Inorganic Carbon Removal Unit is designed to enable measurement of low level organic contamination in water in the presence of large amounts of dissolved inorganic carbon. This situation is typically found in the effluent of reverse osmosis (RO) membrane units, as well as in some municipal waters. The Sievers TOC analyzer determines the total organic carbon in water as the difference between measurements of total carbon and inorganic carbon in the water: TOC = TC - IC IC is defined to be carbon from CO 2, HCO 3 -, and CO 3-2. Sources of inorganic carbon include limestone and absorption of CO 2 from air. When the ratio of TOC to TC is less than 0.1, the accuracy and precision of the TOC result may become unacceptable. The Sievers analyzers automatically detect this condition and will report a warning message. In order to accurately measure the organic carbon (TOC) in this case, it is necessary to remove the IC before performing the measurement. Since the ratio of the non-ionic dissolved form (CO 2 ) to the ionic forms (HCO 3 -, and CO 3-2 ) depends on ph, addition of acid causes all the inorganic carbon to be present in the non-ionic dissolved CO 2 form: 2H + + CO 3-2 H + + HCO 3 _ H2 O + CO 2 ph < 4 Once the IC is in the CO 2 form, it can be removed by separating the CO 2 from the sample through a gas permeable membrane using vacuum on one side. The Sievers ICR uses this principle to remove nearly all the IC from a continuously flowing sample. The unit consists of a membrane module, a vacuum pump, an activated carbon and soda lime trap, a switching valve, and associated electrical, hardware, and plumbing components. 1-1

12 Figure 1-1 is a schematic of the Sievers ICR. The sample flows into the analyzer and is acidified using the acid reagent in the analyzer, then exits the analyzer and flows through the membrane module. The vacuum pump draws air at reduced pressure through the activated carbon/soda lime trap and through the membrane module. Carbon dioxide produced from the acidified sample passes through the membrane into the air stream and leaves the ICR through the pump exhaust. The activated carbon/soda lime trap prevents contamination of the sample stream from organic compounds and CO 2 in the atmosphere. The switching valve is used to bypass the membrane module, allowing normal TOC measurements even when the ICR is connected to the instrument. air inlet chemical trap hollow fiber module vacuum sensor vacuum pump sample inlet 4-way valve FIGURE 1-1: Flow schematic of Inorganic Carbon Removal Unit. 1-2

13 Figure 1-2 shows the appearance of the unit after it has been prepared and is ready to install. FIGURE 1-2: Inorganic Carbon Removal Unit (ICR) with analyzer s Pressure Regulator and Sampling Block attached. 1-3

14 SYSTEM SPECIFICATIONS Power Requirements... ( ) ± 10% VAC, 50/60 Hz, 9 Watts Fuses... T 0.25 Amp, 250 Volt, (Time-lag), 5 X 20mm Ambient Temperature F (10-40 C) Relative Humidity... 80% at 87.5 F (31 C) 50% at 104 F (40 C) Maximum Altitude... 13,124 Ft. (4,000m) Installation/Overvoltage Category... II Pollution Degree... 2 Dimensions in L x 7 in W x 8 in H (37 cm x 18cm x 18 cm) Weight lbs (2.6 kg) 1-4

15 2. INSTALLATION Please read all the following information before attempting to install the ICR. Call Sievers Instruments, or for assistance. NOTE: Save the shipping carton and packing materials that came with the ICR. If the ICR must be returned to the factory, pack it in the original carton. Any repairs as a result of damage incurred during shipping will be charged. Shipping Box Contents Open the shipping box and verify that it contains the following: 1. IC Removal Unit (complete) 2. Manual 3. Accessory kit 4. Power cord Additional Equipment 1/4" open end or adjustable wrench. Phillips Screwdriver Installing the IC Removal Unit The ICR will require a space of 14 X 7 on the right hand side of the analyzer, the Pressure Regulator/Sample Block side. 2-1

16 Step One: Prepare the TOC Ensure that the TOC is in STANDBY mode and power OFF. Remove the power cord from the input socket on the left-hand side of the analyzer. If connected to a pressurized source, adjust all valves to turn off any flow to the TOC. Using the 1/4 wrench, remove the U -shaped stainless steel tube jumper from the right side panel of the TOC. (Two fittings: FROM and TO, see Figure 2-1.) Do not place the ICR near any heat source or hot exhaust. Step Two: Remove Pressure Regulator and Sampling Block from Analyzer (reference Figure 2-1 and 2-2) remove 1/16" SS tubing loop to install ICR TO ICR FROM ICR FIGURE 2-1: Removal of the 1/16 stainless steel tubing loop from the TOC prior to installation of the ICR. 2-2

17 Detach the Pressure Regulator by removing two screws that are positioned on the underside of the bracket. Carefully lay the regulator on the bench top, leaving the tubing attached. Be careful to retain insulators that are between the Pressure Regulator and the bracket. Detach the bracket which held the Pressure Regulator by removing the two screws. The screws that have been removed will be used in the next step. Disconnect the tubing that attaches the Sample Block to the analyzer. Use an adjustable or ¼ wrench to loosen the fitting. Retain tubing for use if ICR is not being used with the analyzer. Replacement tubing is supplied which will connect the Sampling Block to the analyzer after installation. Detach the Sample Block by removing two screws that are positioned on either side of the Sample Block. Carefully pull the Sample Block straight out, watching to capture the insulators that are positioned between the Sample Block and the analyzer. Lay the Sample Block on the bench top leaving the tubing attached that connects the Sample Block to the Pressure Regulator. FIGURE 2-2: Pressure Regulator and Sample Block Removed 2-3

18 Step Three: Attach the Sample Block and the Pressure Regulator to the ICR. (Reference Figure 2-3) Attach the Pressure Regulator bracket to the ICR using the same screws in similar positions as on the analyzer. Secure the Pressure Regulator to the bracket using the same screws. Be sure to replace the insulators between the Pressure Regulator and the bracket. Attach the Sampling Block to the ICR using the same screws in similar positions as on the analyzer. Be sure to place the insulators between the ICR and the Sampling Block. FIGURE 2-3: Pressure Regulator and Sampling Block attached to ICR 2-4

19 Step Four: Attach Mounting Plate to TOC (Reference Figure 2-4) Using screws provided attach Mounting Plate to side of analyzer. Use the holes that previously secured the Pressure Regulator and the Sampling Block to the analyzer. FIGURE 2-4: Analyzer with mounting plate attached Step Five: Secure ICR to Mounting Plate ( Reference Figure 2-4) Place ICR on Mounting Plate with pressure regulator and sampling block away from analyzer. The ICR will be attached to the mounting plate by three captive Phillips head screws in a later step. Thread the two tubes from the ICR to the analyzer. Using the ¼ wrench fasten the tubes to the analyzer s bulkhead fittings labeled IC Remover To From. These bulkhead fittings were used for the U-shaped stainless steel tubing removed in Step One. The tubing from the ICR is labeled FROM and TO, attach the ICR tubes to the analyzer s bulkheads labeled FROM and TO. See Figure 2-5 for reference. DO NOT OVER-TIGHTEN. TURN ONLY 1/8 TURN PAST FINGER TIGHT. Align holes in ICR bottom plate with the three captive screws in the Mounting Plate. Secure screws from underneath. 2-5

20 Step Six: Connecting the Sample Block Tubing to the analyzer. Attach supplied tubing to Sampling Block. Use the ¼ wrench to fasten the two tubes to the bulkhead fittings labeled analyzer inlet/outlet. Attach one tube from the outlet fitting on the Sample Block to the outlet fitting on the analyzer. Attach one tube from the inlet fitting on the Sample Block to the inlet fitting on the analyzer. See Figure 2-5 for reference. Sample Block Tubing Inlet and Outlet FIGURE 2-5: Top View of analyzer and ICR Step Seven: Preparing the black chemical trap Remove the 1/8 nut from the AIR INLET of the black chemical trap. Step Eight: Setting the Valve and connecting power Place the valve on the ICR front panel in the BYPASS position. VALVE HANDLE MUST TOUCH THE STOP IN EITHER POSITION. Step Nine: Reconfigure Auxiliary AC outlet on the Analyzer The ICR has been designed to plug into the auxiliary outlet of the analyzer. It is necessary to stop the ICR when the TOC is not making measurements. This can be accomplished by configuring the auxiliary outlet of the analyzer as a switched outlet under control of the TOC firmware. Once the outlet is properly 2-6

21 configured, connect the power cord for the ICR to the analyzer s auxiliary outlet. The power switch on the ICR should be turned on, and the valve placed in the ON-LINE position. WARNING: Prior to reconfiguring the TOC analyzer it is crucial to turn OFF the TOC Main Power and unplug the analyzer. WARNING: Configuring the TOC analyzer s auxiliary outlet requires access to the power distribution board inside the analyzer, this board is carrying line voltage. To avoid potentially dangerous shock, disconnect the analyzer s main power cord before opening the top panel. Reconfigure the Auxiliary Outlet of the analyzer - The auxiliary outlet MUST be rewired for switched operation under control of the analyzer s firmware. The white, three wire plug from the analyzer s auxiliary outlet should be moved to the position on the power distribution board labeled SMPL PUMP. The power distribution board is located in the front, left hand side of the analyzer with the cover open. See Figure 2-6. The connector position labeled SMPL PUMP may be the first or second position from the front of the analyzer, depending upon analyzer vintage. Remove the protective plug from this position, install the plug from the auxiliary outlet, and then install the protective plug in the position vacated by the auxiliary plug. WARNING: Once this change is made, the auxiliary outlet should be used only for the ICR. Attempting to use the auxiliary outlet for the autosampler or other equipment can result in damage to the equipment. 2-7

22 Auxiliary power outlet (3 prong female) ICR power cord Male 3 prong connector TOC Analyzer To main power ICR Unit TOC power entry module with 3 pin male socket and switch Auxiliary outlet wired to SMPL PMP connector on Power Distribution Board for an expanded view see Figure 2-7 FIGURE 2-6: Power cable configuration for TOC with ICR controlled by TOC. to auxiliary outlet connector labeled SMPL PMP FIGURE 2-7: Power Distribution Board with Auxiliary Outlet connected to SMPL PMP position. Connect the ICR power cord to the auxiliary outlet of the analyzer, see Figure

23 Step Ten: Making measurements (More information is available in the next chapter Operation) Using the ICR If the analyzer is connected to a pressurized source, turn on flow to the analyzer. Change the acid flow rate setting to double the normal flow rate for the water to be analyzed. (DI water, change from 0.2 to 0.4; Raw Water, change from 0.75 to 1.5, etc.) Start measurements. If the analyzer is off, then power up and start measurements. Turn on the ICR. THE GREEN LIGHT SHOULD COME ON AFTER A FEW SECONDS. Place the valve on the ICR front panel in the ON-LINE position. VALVE HANDLE MUST TOUCH THE STOP IN EITHER POSITION. Bypassing the ICR Place the ON-LINE/BYPASS valve on the ICR front panel in the BYPASS position. VALVE HANDLE MUST TOUCH THE STOP IN EITHER POSITION. THE ICR SHOULD BE BYPASSED FOR INORGANIC CARBON CALIBRATION OF THE TOC. Step Eleven: Stopping the ICR Place the valve on the ICR front panel to the BYPASS position. VALVE HANDLE MUST TOUCH THE STOP IN EITHER POSITION. Turn off the ICR power switch. The lights on the front panel should go off. IT IS PERMISSIBLE TO MAKE TOC MEASUREMENTS WITH THE ICR OFF ONLY WITH THE VALVE IN THE BYPASS POSITION. IF THE ICR WILL BE OFF FOR EXTENDED PERIODS OF TIME, IT SHOULD BE FLUSHED WITH CLEAN WATER IN THE ON-LINE SETTING AND THEN PLACED IN THE BYPASS SETTING. Step Twelve: Reconnect the analyzer s main power cord. The ICR is now installed for normal operations. 2-9

24 Installing the IC Removal Unit with an Autosampler For operation with an autosampler system, it is desirable to stop the ICR when the analyzer is not making measurements. This can be accomplished by configuring the auxiliary outlet as a switched outlet under control of the analyzer s firmware. If the ICR was not provided as part of the autosampler system, or the ICR was not installed with the autosampler by Sievers, refer to the instructions at the end of this chapter or contact Sievers for more information on how to properly configure the auxiliary outlet as switched. Once the outlet is properly configured, connect the power cord for the ICR to the analyzer s auxiliary outlet. The power switch on the ICR should be turned on, and the valve placed in the ON-LINE position (see Figure 2-3) before starting an autosampler protocol. WARNING: Prior to reconfiguring the analyzer it is crucial to turn OFF the Main Power and unplug the analyzer. WARNING: Configuring the auxiliary outlet requires access to the power distribution board which is carrying the line voltage. The power distribution board is located inside the analyzer. To avoid potentially dangerous shock, disconnect the analyzer s main power cord before opening the top panel. Reconfigure the Auxiliary Connector The auxiliary outlet MUST be rewired for switched operation under software control of the TOC. The white, three wire plug from the analyzer s auxiliary outlet should be moved to the position on the power distribution board labeled SMPL PUMP. The power distribution board is located in the front, left hand side of the analyzer with the cover open. See Figure 2-6. The connector position labeled SMPL PUMP may be the first or second position from the front of the analyzer, depending upon analyzer vintage. Remove the protective plug from this position, install the plug from the auxiliary outlet, and then install the protective plug in the position vacated by the auxiliary plug. WARNING: Once this change is made, the auxiliary outlet should be used only for the ICR. Attempting to use the auxiliary outlet for the autosampler or other equipment can result in damage to the equipment. 2-10

25 Reconfigure the Power Cables The ICR has a power cable that must be connected to the analyzer s auxiliary outlet when used with an autosampler. This allows the ICR to be controlled by the TOC. In this configuration, the Autosampler or other accessories are connected directly to the main power, not to the TOC. See Figure 2-6. NOTE: Some power distribution boards only have five connectors, some power distribution boards have six. The connector used for the ICR is the connector labeled SMPL PMP. 2-11

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27 3. OPERATION Making TOC measurements using the ICR requires properly configuring the TOC and the ICR. Measurements are then made by the TOC in the normal fashion. The performance of the ICR can be determined by comparing the IC channel reading during measurements with the ICR on-line and bypassed. This is described below. Selecting Reagent Flow Rates The ICR requires the addition of more acid than the recommended flow rates for operation without an ICR. For most water samples, an acid flow rate of 1.5 µl/min will be satisfactory when using the ICR. The actual required acid flow rate depends on the level of IC in the sample. The recommended acid flow rates for various IC concentrations are shown in Table I. Table I. Recommended Acid Flow Rates when using the ICR. IC Concentration Acid flow with ICR Acid flow without ICR ppm 3.0 µl/min. 1.5 µl/min ppm 1.5 µl/min µl/min. Deionized water Not applicable 0.2 µl/min. Changing the Acid Flow Rate To change the flow rates for on-line or grab sampling from the Setup Menu: Press the DOWN Arrow button to scroll to REAGENTS. Press ENTER. The REAGENTS Menu is displayed. 3-1

28 GRAB FLOW RATES ONLINE FLOW RATE REAGENT FLUSH ENT = SELECT, CLR = EXIT FIGURE 3-1: Reagents Menu. Enter Clear Use the UP or DOWN Arrow Buttons to select ON-LINE FLOW RATES or GRAB FLOW RATES and press ENTER. The flow rates menu for that sampling mode will be displayed. ACID FLOW RATE Enter OXID FLOW RATE Clear FIGURE 3-2: Flow Rate Menu. Press ENTER to display the Acid Flow Rate Menu. 3-2

29 ACID FLOW RATE IN MICROLITERS/MINUTE ENT = SAVE CHAR/NUM CLR = RESTART/EXIT ARROWS = CHANGE CHAR FIGURE 3-3: Acid Flow Rate Menu. Enter Clear The current flow rate setting is shown in the upper right-hand corner and the new flow rate will be entered at the cursor position. If a mistake is made when entering the new values, press CLEAR to delete the entry. To exit the Flow Rate Menu without changing the setting, press CLEAR twice. Use the UP or DOWN Arrow buttons to scroll to the first digit of the new flow rate. Press ENTER. Use the UP or DOWN Arrow buttons to select the next digit, decimal point, or exponent. Press ENTER Enter the remaining digits using the UP or DOWN Arrow and ENTER buttons. To save the new acid flow rate, press ENTER. The menu changes and asks if the number is correct. 3-3

30 ACID FLOW RATE IN MICROLITERS/MINUTE ARE YOU SURE? ENT = SELECT,CLR = ABORT FIGURE 3-4: Enter Clear Acid Flow Rate Menu after new value is entered. Press ENTER to save the new value. The Acid Flow Rate Menu with the new flow rate is then displayed. Double check that the value is correct. Press CLEAR to return to the Flow Rate Menu. This completes configuration of the TOC. Before making measurements, verify that the ICR switching valve is in the ON-LINE position. To change the flow rates for autosampler use, enter the appropriate flow rates into the autosampler protocol. Refer to the Autosampler Operation Manual for more details about entering protocols. Making measurements Place the ICR valve in the bypass position. Start the TOC by pressing CLEAR until the run-time display appears. The counter in the upper right hand corner of the TOC display will begin counting down, indicating the TOC is running. Place the power switch on the ICR in the on position and wait for the green light to illuminate, indicating sufficient vacuum is available. Move the valve on the ICR to the ON-LINE position. To make measurements with the ICR bypassed, simply switch the ICR valve to the bypass position. If the valve is moved in one motion to the stop, it is not necessary to stop the TOC. NOTE: 3-4

31 Operation of the TOC with the ICR valve in an intermediate position will stop sample flow to the TOC and damage the instrument. Always ensure the ICR valve is fully against a stop in either position. If the ICR will be bypassed for an extended period of time, it should be turned off. NOTE: It is permissible to make TOC measurements with the ICR off ONLY if the ICR valve is in the bypass position. NOTE: If the ICR will be off for a prolonged period, it should be flushed with clean water before placing the valve in the bypass position and turing off the power. Trapping high level samples in the ICR will lead to high background for several hours when the ICR is placed back in service. 3-5

32 Operation Information To check the performance of the ICR, run a 25 ppm (25,000ppb) IC standard with the ICR valve in the ON-LINE and then repeat in the BYPASS positions Compare the IC channel readings. With the ICR on-line, the 25,000 ppb IC should be reduced to 200 ppb or less. Ensure that the acid flow rate is set at 1.5 µl/min for this measurement. Table II shows some typical performance data for several units. Table II. Typical performance data for various ICR units. IC level with µg/l input TOC background IC background If the organic sample contains volatile organics, it is possible to remove organic from the sample in the ICR. This effect can be quantified for a given compound by preparation of a standard and measuring the TOC value with the ICR on-line and bypassed, and comparing the TOC results. The ICR contributes both organic and inorganic background that is measurable when running on ultra-pure water. Units are factory-tested and shown to contribute less than 10 ppb TOC before shipment. Table II shows the background levels measured for various units. To determine the background, operate the TOC on-line to a low TOC and low IC water source, and compare the TOC and IC channel readings with the ICR on-line and bypassed. The difference is the background reported in the table. 3-6

33 4. MAINTENANCE/TROUBLESHOOTING The ICR is designed to be serviced annually. The maintenance items are the pump diaphragm and the membrane degasser. Pump diaphragm Under continuous use, the vacuum pump diaphragm has a one-year service life. The actual lifetime of a particular pump diaphragm is difficult to predict, as it is a function of duty cycle, temperature, humidity, etc. Membrane degasser It is recommended to replace the degasser module each year of operation. Note that exposure of the unit to excessive sample pressure or high temperatures may damage the degasser or shorten the lifetime. Field service The ICR is field serviceable by factory trained personnel and can be serviced by customers with proper instruction. In some cases, repairs to the ICR will require shipment of the unit to Sievers Instruments for service. Prior to removing the unit from service, use Table III to identify common problems and take corrective action to see if proper operation can be restored. If it is then determined that the unit must be returned for service, follow the instructions at the end of this chapter. 4-1

34 Table III. Troubleshooting ICR performance problems. Problem/symptom Likely cause Corrective action Randomly erratic TOC readings, otherwise normal operation Low recovery of organic from known sample or standard using ICR Generally stable TOC readings with periodic high or low readings Green (vacuum indicator) light not illuminated, fault light not illuminated and motor is running. Yellow (no vacuum) light illuminated Motor does not run, no lights illuminated Motor does not run, yellow light illuminated Insufficient acid flow rate Insufficient acid flow rate Leak in hollow fiber module LED failure in indicator light Blown fuse Loss of vacuum Blown fuse, check power source. Motor failure Increase acid flow rate. Minimum flow is 2 times normal flow for sample Increase acid flow rate. Minimum flow is 2 times normal flow for sample Return to Sievers for replacement of hollow fiber module or replace module (requires instructions or training from Sievers) Performance test to determine if unit has acceptable removal efficiency (see chapter 3) Check fuse, replace if necessary Return to Sievers for repair or replace pump diaphragm or pump head (requires instructions or training from Sievers) Check fuse, replace if necessary Return to Sievers for replacement of pump motor 4-2

35 Table III (continued). Troubleshooting ICR performance problems. Problem/symptom Likely cause Corrective action Poor removal efficiency but no other problems Excessive water leaking from unit, green light illuminated Checking the fuse Insufficient acid flow rate Internal leak Damaged hollow fiber module Damaged hollow fiber module Internal fitting leak Increase acid flow rate. Minimum flow is 2 times normal flow for sample Return to Sievers or repair fittings Return to Sievers for replacement of hollow fiber module or replace module (requires instructions or training from Sievers) Return to Sievers for replacement of hollow fiber module, or replace module (requires instructions or training from Sievers) Return to Sievers for inspection and repair of fittings or repair fittings Place the power switch on the ICR in the off position. Unplug the AC power cord from the source. Use a screwdriver to open the fuse holder on the back of the ICR Power Entry Module. Remove the fuses from the holder and replace, if necessary, with the replacement fuses that came with the unit or an exact replacement fuse. Fuse Value T 0.25 Amp, 250 Volt, (time-lag), 5x20mm Repackaging the ICR for return 4-3

36 In some instances, it will be necessary to return the unit the factory for repairs. There are several precautions that you must follow to ensure that the unit is not damaged during shipment. If you have not saved the original shipping container, please call Sievers Instruments at or and order a new shipping container. You must also obtain a Return Authorization Number from Sievers Instruments Service before shipping the unit. NOTE: Shipping the unit in anything other than the Sievers Instruments shipping container, can result in charges for any repairs as a result of damage incurred during shipping. Only use the Sievers shipping container and packing materials when shipping the unit. Place the ICR unit into the shipping container and place the lid, with foam block, on top of the ICR. Secure the box with packing tape. Include the return authorization number on the shipping label. Ship to: Sievers Instruments, Inc Arapahoe Ave. Boulder, CO (303)

37 5. SCHEMATICS/PARTS LISTS Electrical Schematics GREEN FUSE AC/BLUE FUSE AC/BROWN AC/GND YELLOW IN/SWITCH OPEN EX/SWITCH MOTOR FIGURE 5-1: Electrical Schematic ICR unit. 5-1

38 Flow Schematics air inlet chemical trap hollow fiber module vacuum sensor vacuum pump sample inlet 4-way valve FIGURE 5-2: Flow Schematic for ICR in Bypass Mode. air inlet chemical trap hollow fiber module vacuum sensor vacuum pump sample inlet 4-way valve FIGURE 5-3: Flow Schematic for ICR in On-line Mode. 5-2

39 Exploded Views Chemical Trap FIGURE 5-4: Vacuum Pump Motor Vacuum Pump Degassing Module Side Exploded View of ICR Unit. Table IV - Terminal Block Definition Terminal Block Wire Color From Component Description Number 1 Red Power Supply +15 Volts DC 2 Black Power Supply -15 Volts DC Not Used Not Used 5 Red Motor Common Input 6 Blue Motor Ground 7 Black (Middle) Vacuum Switch Normally Open Output 8 Red Vacuum Switch Common Input 9 Black Vacuum Switch Normally Closed Output 5-3

40 Parts Lists Not all parts in the ICR unit are user serviceable. Properly trained service technicians can field replace the major assemblies during service, but in many instances the units will be returned to the factory for service. The following lists do not include all parts, but include the major system assemblies and parts that might be used in field service. Parts list for: IC REMOVAL MODULE - PRD 34000) Part Number ACT AQC ASW EFU HPM APC Description CHEMICAL TRAP - IC REMOVER DEGASSING MODULE, TESTED VACUUM SWITCH ASSEMBLY FUSE, 0.25 Amp, 250 Volt, Time-lag VACUUM PUMP 15V POWER SUPPLY 5-4