USER MANUAL
Contents
1. 12 Vdc pin 5 service up to 5000 ppm v pin 18 12 Vdc Pins 6 19 7 20 8 21 9 22 10 23 11 24 12 25 and 13 are not connected 7 9 RS 232 serial communication MENU With this option installed this analyzer retransmits the operating parameters and process values to a remote computer through a serial link The computer is connected to the analyzer by the mean of a shielded cable The computer must have an appropriate software to read the date transmitted by the analyzer A communication software could be supplied with the analyzer option You can use either free software supplied by cmc Instruments GmbH or any other commercially available software You need a DB 9 cable This allows direct connection to a personal computer serial port The communication parameters of the analyzer are Baud rate 9600 Baud Parity bits none Data bits 8 Stop bits 14 21 The pins at the 9 pin SUB D RS 232 socket are as follows pin 1 pin 6 pin 2 pin 7 pin 3 pin 8 pin 4 pin 9 pin 5 shortcut with 4 6 shortcut with 1 4 TXD transmission data shortcut with 8 RXD receiving data shortcut with 7 shortcut with 1 6 not connected GNDEXT ground 8 SIGNAL OUTPUTS Digital outputs Analog outputs either or with range identification 2 potentialfree relais for alarm 1 2 alternate contact 300 VA max 230 V 5 potentialfree relais for range identification closing contact max 10 W 10 V2. O Rings Sensor body 20 SI h optional 100 SI h 0 1 barg to 1 5 barg 5 C to 50 C 5 C to max 150 C lt sec lt 8 sec 1 of full scale with cmc amplifier 0 1 ppm v H2O with cmc amplifier 2 mtr other length on request shielded cable with high quality water proof connections LEMO High 120 mm Diameter 43 mm Weight 300 g 6 mm pipe fitting Swagelok for metal bodies 6 mm tube connection for glass body electrodes made in platinum optional rhodium Viton optional PTFE TMS SS stainless steel 316 SS testing pressure 10 barg TMS M monell 400 testing pressure 10 barg TMS H Hastelloy testing pressure 10 barg TMS G glass testing pressure 1 5 barg 7 21 5 DESCRIPTION The TMA trace moisture analyzer is an instrument for measuring 0 to 2500 ppm v moisture in gases It consists out of three basic modules moisture sensor power supply amplifier These modules can be mounted in 19 table top cases portable cases wall mounted cases or 19 instrument racks PLEASE READ THE ENTIRE MANUAL BEFORE OPERATING THE ANALYZER Analyzer The trace moisture analyzer TMA is fully microprocessor controlled and is designed to operate in the rough field service The amplifier is a high technology solid state unit which is available as a base and also as a portable version 2 Alarmlevels can be set 5 potentialfree relais for range identification one a
3. Handling electronic components is a relatively easy task but the following should be considered The electronic components used in this instrument might be permanently damaged by electrostatic discharge ESD These discharges can be avoid by following these precautions Electricity should be discharged prior to opening the instrument Make sure that there is no charge build up during working on the open instrument The best possible protection would be achieved if all work on the instrument is done at an ESD safe work place where you wear an antistatic wristband Should such a workplace not be available the following guidlines are to be strictly followed Any electrostatic electricity is to be discharged by touching the metal case of a protected instrument which is connected to an appropriate power receptacle Do not plug in the instrument you are working on to provide discharge capability This procedure is to be repeated several times during working on the instrument 10 21 6 INSTALLATION OF THE SENSOR The sensor can be mounted on a special mounting bracket via three M 4 screws If necessary the sensor can be mounted in various positions using the mounting bracket available as additional accessories see also drawing As a matter of principle the connector receptacle should point upward but however horizontal installation is also possible The lower gas connector has to be used as sample in The upper connector is samp
4. REGENERATION OF THE SENSOR IMPORTANT Phosphoric acid is a highly corrosive substance All safety regulations concerning storage handling and working with the substances valid in your area must under all circumstances be strictly observed Always wear protective gear and safety googles when performing this task If the displayed moisture value seems to be to high or moves sluggishly it may indicate that the sample cell has to be recovered To remove the sensor from it s housing disconnect the sensor cord and carefully unscrew the sensor head Now the glass rod with the electrodes made in platinum or rhodium can be cleaned Use great care while doing so Rinse the glas rod thoroughly with running water and carefully wipe dry If necessary remove any mechanical impurites with a soft laboratory cleaning brush and rinse thoroughly once more with water Now rinse with acetone or a hot fan to evaporate rest watertraces between the electrodes Now reconnect the sensor cord with the sensor head The display must read 0 00 in the O 10 ppm range with a max discrepancy of 0 05 ppm This action verifies that all impurities have been removed If a value greater than 0 05 ppm is displayed the cleaning process has to be repeated until the required zero value is achieved 17 21 Please choose the service range for the next step Apply a 50 phosphoric acid solution to the glass rod using a pipette while slowly turning the sensor to allo
5. can bring the unit into the SERRVICE MENU by pressing simultaneously the up T and the down J buttons more than 3 sec After switching on the SERVICE MENU displays you SERVICEMENU 0 0 ppm X this line is only for cmc Instruments service engineers ZERO electrical zero point check of amplifier ENDPOINT SPAN electrical endpoint check of amplifier OFFSET SPAN ANALOG OUT 4 20 mA MENUE 2 choose language EXIT If you are not using the SERVICE MENU after 30 sec the analyzer will be switched back automatically into the MAIN MENU If you ll check the ENDPOINT the instrument has to display 1395 ppm v After this check please press again ENTER and wait 2 sec now you can go by the cursor key downstairs and leave the service menu by EXIT 16 21 In this SERVICE MENU you can pre adjust the following parameters With the up T down button and then ENTER you can select 0 0 ppm 3 only for cmc Instruments service ingenieurs NULLPUNKT zero only for cmc Instruments service engineers ENDPUNKT end point only for cmc Instruments service engineers DELAY transmission interval for RS 232 1 sec 2 sec 3 sec 99 sec OFFSET correction of actual ppm value 1 ppm 2 ppm 3 ppm 4 ppm 5 ppm ANALOG OUTPUTS either or 0 20 mA or 4 20 mA or 0 10 V EXIT back to the MAIN MENU For SYSTEMRESET please press also the up T down J button The system will be reset back to the basic parameters 9
6. excluding consumable manufactured by Seller are warranted to be free from defects in workmanship and material under normal use and service for a period of twelve 12 months from the date of shipment by Seller Consumable glass holder O rings etc are warranted to be free from defects in workmanship and material under normal use and service for a period of ninety 90 days from date of shipment by Seller Goods part s and consumable proven by Seller to be defective in workmanship and or material shall be replaced or repaired free of charge F O B Seller s factory provided that the goods part s or consumable are returned to Seller s designated factory transportation charges prepaid within the twelve 12 months period of warranty in the case of goods and part s and in the case of consumable within the ninety 90 days period of warranty This warranty shall be in effect for replacement or repaired goods part s and the remaining portion of the ninety 90 days watranty in the case of consumable A defect in goods part s and consumable of the commercial unit shall not operate to condemn such commercial unit when such goods part s and consumable are capable of being renewed repaired or replaced The Seller shall not be liable to the Buyer or to any other person for the loss or damage directly or indirectly arising from the use of the equipment of goods from breach of any warranty or from any other cause All other warranties
7. expressed or implied are hereby excluded IN CONSIDERATION OF THE HEREIN STATED PURCHASE PRICE OF THE GOODS SELLER GRANTS ONLY THE ABOVE STATED EXPRESS WARRABTY NO OTHER WARRANTIES ARE GRANTED INCLUDING BUT NOT LIMITED EXPRESS AND IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THIS WARRANTY IS THE ONLY WARRANTY MADE BY cmc Instruments GmbH WITH RESPECT TO THE GOODS DELIVERED HEREUNDER AND NO EMPLOYEE REPRESENTATIVE OR OTHER PERSON OR ENTITY IS AUTHORIZED TO ASSUME FOR cmc Instruments GmbH ANY OBLIGATION OR LIABILITY BEYOUND OR AT VARIANCE WITH THIS WARRANTY IN CONNECTION WITH THE SALE OF cmc Instruments PRODUCTS 4 21 Limitations of Remedy SELLER SHALL NOT BE LIABLE FOR DAMAGES CAUSED BY DELAY IN PERFORMANCE THE SOLE AND EXCLUSIVE REMEDY FOR BREACH OR WARRANTY SHALL BE LIMMITED TO REPAIR OR REPLAYCEMENT UNDER THE STANDARD WARRANTY CLAUSE IN NO CASE REGARDLESS OF THE FORM OF THE CAUSE OF ACTION SHALL SELLER S LIABILITY EXCEED THE PRICE TO BUYER OF THE SPECIFIC GOODS MANUFACTURED BY SELLER GIVING RISE TO THE CAUSE OF ACTION BUYER AGREES THAT IN NO EVENT SHALL SELLER S LIABILITYEXTEND TO INCLUDE INCIDENTAL OR CONSEQUENTIAL DAMAGES CONSEQUENTIAL DAMAGES SHALL INCLUDE BUT ARE NOT LIMITED TO LOSS OF ANTICIPATED PROFITS LOSS OF USE LOSS OF REVENUE COST OF CAPITAL AND DAMAGE OR LOSS OF OTHER PROPERTY OR EQUIPMENT IN NO EVENT SHALL SELLER BE LIABLE FOR PROPERTY DAMAGE AND OR THIRD PARTY CLAIMS
8. hereunder but are licensed to buyer 5 21 Amplifier Ranges Accuracy Sensitivity Operation Digital outputs Analog outputs either or with range identification Display Serial port option Digital inputs Calibration Supply Fuse Power consumption Operating temperature Enclosure protection Dimensions Weight 4 SPECIFICATIONS TMA 202 20 Vh TMA 204 20 I h TMA 210 100 I h 0 10 ppm v 0 100 ppm v 0 1000 ppm v 0 2500 ppm v service menu to regenerate the sensor better than 1 of full scale 0 1 of full scale manually remote control auto ranging RS 232 2 potentialfree relais for alarm alternate contact 300 VA max 230 V 5 potentialfree relais for range identification closing contact max 10 W 10 VA max 100 V 0 20 mA lt 500 Ohm 4 20 mA lt 500 Ohm isolated output on 0 10 V gt 100 kOhm request LC multifunctional RS 232 Modem 24 V remote control EXT over 5 relais for range switching Auto zero Auto span calibration self check 230 VAC 50 60 Hz or 115 VAC 50 60 Hz on order 200 mA MT 8 W 10 C to 50 C IP 20 Length 257 mm Depth 316 mm Height 160 mm 3U 6 kg 6 21 Sensor Sample flow rate Recommended gas pressure Ambient temperature Sample temperature Response time Rising time Tsp Accuracy Detectability Sensor cable Dimensions Gas Connections Sensor rod made in glass
9. 110 ppm the display will show you 100 ppm plus a over range sign A 100 ppm In this case please adjust range O 1000 ppm to read the correct moisture value Over the sector 0 2500 ppm the measured accuracy is 1 of actual range f s Additionally you can read moisture levels up to 5000 ppm service range but here the accuracy will be max 5 of full scale This range shouldn t be used for correct useage only for better orientation to indicates you where is the actual moisture level 7 7 AUTO auto ranging MENU Please choose this mode if you are expecting fluctuate or discontinuous moisture values The display shows you all values over the full sector O 5000 ppm Over the sector 0 2500 ppm the measured accuracy is 1 of actual range f s 13 21 Additionally you can read moisture levels up to 5000 ppm service range but here the accuracy will be max 5 of full scale This range shouldn t be used for correct useage only for better orientation to indicates you where is the actual moisture level 7 8 EXT external remote control MENU For remote control you can switch the ranges over SIGNAL INPUT 25 pin SUB D connector on the rear of the unit The pins at the 25 pin SUB D signal in plug are as follows Remote range pin 1 0 10 ppm v pin 14 12 Vdc pin 2 0 100 ppm v pin 15 12 Vdc pin 3 0 1000 ppm v pin 16 12 Vdc p n 4 0 2500 ppm v pin 17
10. A max 100 V 0 20 mA lt 500 Ohm 4 20 mA lt 500 Ohm isolated output on 0 10 V gt 100 kOhm request The pins at the 25 pin SUB D signal output socket are as follows pint pin 14 pin 2 pin 15 pin 3 pin 16 pin 4 pin 17 pin 5 pin 18 pin 6 pin 19 pin 7 pin 20 pin 8 Analog outputs 0 10V 0 10 V 0 20mA or 4 20 mA 0 20 mA or 4 20 mA Alarm 1 Alarm 2 alarm 1 opening contact alarm 1 common alarm 1 closing contact not connected alarm 2 opening contact alarm 2 common alarm 2 clos ng contact ready for measurement ready for measurement not connected not connected 15 21 Range identification pin 21 service 0 5000 ppm v identification pin 9 service 0 5000 ppm Vv identification pin 22 0 2500 ppm identification pin 10 0 2500 ppm identification pin 23 0 1000 ppm identification pin 11 0 1000 ppm identification pin 24 0 100 ppm identification pin 12 0 100 ppm identification pin 25 0 10 ppm identification pin 13 0 10 ppm identification 8 1 SYSTEM RESET SERVICE To bring you into the SEVICE MENU please proceed as follows 2 possibilities l When you are switching on the power button simultaneous hold the ENTER button for about 3 sec Now you place the analyzer into the SERVICE MENU 2 If the analyzer is already measuring and the OPERATION MODE 1s adjusted AUTO RS 232 or EXT you
11. COVERED BY UMBRELLA INSURANCE AND OR INDEMNITY COVERAGE PROVIDED TO BUYER IST ASSIGNS AND EACH SUCCESSOR INTEREST TO THE GOODS PROVIDED HERE UNDER Major force Seller not be liable for failure to perform due to labor strikes or acts beyond Seller s direct control 3 1 SERVICE POLICY l If a product should fail during the warranty period it will be repaired free of charge For out of warranty repairs the customer will be invoiced for repair charges at current standard labor and materials rate 2 Customers who return products for repairs within the warranty period and the product is found to be free of defect may be liable for the minimum current repair charge 2 For parts replacement the original part must be returned within serial and model numbers of the analyzer No part will be shipped if theoriginal is not sent back to cmc Instrumets GmbH 3 2 PROPRIETARY RIGHTS Buyer agrees that any cmc Instruments software firmware and hardware products ordered or included in the goods ordered are proprietary to cmc Instruments GmbH No change modification defacement alteration reverse engineering software decompilatios nor reproduction of such software or hardware products or disclosures of programming content to other parties is authorized without the express written consent of cmc Instruments GmbH To maintain cmc Instrumets GmbH trade sectret and other proprietary protection of such software and firmware such items are not sold
12. cccccccccccccccscccccccccssccscess 12 5 SIGNAL OTP TS cccccaeensccoanscsccnsesecnsnesseacssssseecsnacsacasacnssessnassenccasevnncsnasessasaseawessesees 13 Oe RIV RESET 7 SERVICE ss 14 9 REGENERATION OF THE SENSOR eeseosessosessessosessessosessessssessossosessossssessoses 15 IN SHORT STEPS arpani E vessvecaeesecescvesecnsacceccssavesseseauecedenevesscesccsccceasseoees 17 10 INSTALLATION CONNECTION OF SENSOR cccsccsccsscccccscccscccsccscceecs 18 11 CERTIFICATE OF CONFORMITY ssssccsstsseassceccenstasusssccaeadssccatscsnctnesessasstessassatsane 19 2 21 1 ABOUT THIS MANUAL This analyzer was designed for simple use according to the Plug and play principle and so was this manual For the benefits of clarity all electronics sofwares and physical details not necessary for the operation of the unit are omitted It is the way we want it We understand that you want to put your new analyzer to use as soon as possible To achieve this goal take the time to read all this manual in its entirety Every section is based on the assumption that you have read and understood the preceding one and every section has important comments for the user This analyzer is very simple to install and to use also it is maintenance free No special technical knowledge is required to operate the unit We hope that you will enjoy working with the TMA Trace Moisture Analyzer In the spirit of progress and continuous improvement we would ap
13. cmc Instruments GmbH USER MANUAL TRACE MOISTURE ANALYZER 0 2500 ppm v H O MODEL TMA Hauptstra e 388 Me Regel und Analysentechnik Telefon 06173 32 00 78 Fax 06173 65050 cmcingmbh aol com www cmc instruments de 1 ABOUT THES MANDVAL unse en 1 2 WARRANTY SERVICE POLICY REPAIR SERVICE cccccsscccssccsccccescees 2 3 E SERVICE POLICY esse esse sense 3 3 2 PROPRIETARY RIGHTS ne eee 3 4 SPECIFICATIONS i Analy Ze cnn OE a E 4 VE L PEE E E A E A A A E A A A 5 S DESCRIPTION or A EAA 6 S I PRINCIPLE OF OPERA TION eu 6 5 2 SAFETY INSTRUCTHONS vrs oraoaese secre cotseccese n E Ea Eaa SE riesen 7 SI POWER SUPPLY irececcecceencsaceasacescananscsvcnestneessccvaceesenenersvaesesuusecsascseessneseessconesestnes 7 5 4 ELECTROSTATIC ELECTRICITY ae 8 6 INSTALLATION OF THE SENSOR re 9 7 PLACING THE ANALYZER INTO SERVICE 000000000000000020000002000200 000020000 9 PACS YS LEAVE CHECK MENU 2er 10 FANE SIN MENU see 10 7 3 OPERATION MODE inccnscesacsasssacnssteswansenwescsGnecssectecessundussswaatessenectnsessssSnonsseasessteents 10 TEALA eV Da E E E EA 10 FS ALARM a A E E EA E A E N 11 TOMAN mamah MENU seese 11 7 7 AUTO auto ranging MENU ccccccsssccssscccsssccsssccssssccsssccssssccsssccssssccssscosesces 11 7 8 EXT external remote control MENU cccccccccsccsccsccccccccccccccccccccccccccccccscess 12 7 9 RS 232 Serial communication MENU ccccccccscsccccssc
14. g this process please hold the sensor head glass rod downstairs see picture Now rinse with acetone or use a hot fan to evaporate the rest of watertraces Reconnect the sensor cord to the head Display must read 0 00 in the 0 10 ppm range If not some small particles are still between the electrodes and the cleaning process has to be repeated until the required zero value is achieved Otherwise you will measure offset Please choose service range 0 5000 ppm for the next step Apply the 50 phosphoric acid solution to the glass rod while slowly turning the sensor to allow even distribution of the acid around the whole circumference The glass rod has to be evently covered with foam in the area between and around the electrodes Now the sensor head is ready to be re installed into the sensor bowl Be Mi Ausgang Mefgas Soe Outlet sample Durchflu messer Flowmeter Fiu schema mit Durch flu messer und setrenntem Nadelventil Schematic flow with flow meter and separate needle valve C rent TT de Eingang Me gas A Inlet sample Mt jG lap aa Nadelventil Needle valve H 0 Sensor Flu schema mit Durchflu messer bei ee oe integriertem Nadelventil Schematic flow with flowmeter and integrated needle valve Ausgang Mehgas Outlet sample p lel H Sensor Eingang Mefigas C Coon Inlet sample Durchflu messer mit Nadelventil ie Flowmeter with in
15. le out If the sensor is mounted horizontally sample in and sample out connectors are optional But sample supply then has to occur from below Sample conditioning To ensure proper functioning of the sensor the sample gas has to be conditioned if necessary The input pressure is not to exceed 1 5 barg 22 psig Sample output has to occur against ambient pressure Sample flow has to be adjusted to 20 100 Sl h We recommend installing a precision valve to the inlet and a flow meter without needle valve to the outlet of the sensor see also drawing Other possibillity is to use a flow meter with needle valve at the inlet To prevent re diffusion of moisture into the system a tube of at least 1 m 3 ft in length has to be connected to the sample output Generally stainless steel has to be used as tubing material If used on highly corrosive sample gases PFA tubing may be used Other plastic materials must not be used as their diffusion rate for water is to large If the sample gas contains mechanical impurities a special particle filter has to be used This special filter has to feature only a very small surface area Larger filter surfaces would create a water trap and thus lead to false sample results MEMORY EFFECT For selection and design of the appropriate sample conditioning and sample handling please contact cmc Instruments GmbH Tel 49 06173 320078 7 PLACING THE ANALYZER INTO SERVICE Connect your trace moisture analyzer M
16. nalog output and one serial port RS 232 optional are integrated For remote control there are 5 isolated input contacts to switch the ranges externally The system can be set in 4 modes manual external auto range and via RS 232 optional The high quality LC display shows the measuring result in ppm v the alarm levels which are set and also the mode for example auto ranging The connections of the sensor are of special high quality water proof connectors MIL STD 1344 A After switching on the unit the instrument automatically is doing a self check To measure in explosive hazardous areas the unit can be fitted with safety barrieres Ex i Portable unit with reachargable battery and built in charger on request 5 1 PRINCIPLE OF OPERATION The P Os sensor uses the principle of dissociation of water to hydrogen and oxygen The sensor element itself consits out of a round glass body on which two electrodes are wounded at constant distance Depending on the sensor type these electrodes are either made out of platinum or rhodium wire Between these electrodes a thin film of phosphoric acid H3PQO is applied The sensor current causes the water contained in the acid to dissociate to hydrogen and oxygen The result of this process is P20 diphosphorous pentoxyde P205 is a highly hygroscopic substance which absorbs the water from the sample gas Through continuous dissociation of the water a balance between the water content of the
17. odel TMA to mains power using the include power cord Do also connect the sensor to the analyzer using the included sensor cord Please make sure that mains voltage and instrument voltage correspond The instrument is activated bey pushing the power switch at the rear of the unit On the front panel of the power supply module two green LED s will light up This indicates that the voltage for the amplifier and the power supply module is present The two red coloured LED s indicates the pre set low high alarm All analyzer functions are controlled through different menu options The following figures in this section show the overall menu structure You must become familiar with it 11 21 7 1 At power on the analyzer displays the SYSTEM CHECK MENU TMA X Version X Y Systemcheck Systemcheck ok SENSOR 20 Ni h Exi BARRIERES NO This test is checking automatically for a few second the electronic unit of the system which means the electronically zero and the electronic gain of the system 7 2 After the system check the analzer displays the MAIN MENU Range 0 10 AUTO 0 00 ppm ALARM 1 gt 500 ppm ALARM 2 lt 50 ppm Now the analyzer is ready for measurement At the beginning the analyzer displays you moisture contents of more than 5000 ppm v First all upstream pipes valves and flow meters must be purged and dry out from ambient humidity Moreover the moisture in the phosphoric acid must be dry out bef
18. ore the proper hygroscopic reaction could start on the sensor rods surface This means that after switching on the analyzer it could takes some minutes before the whole system get purged 7 3 OPERATION MODE Pressing ENTER will give you the possibility to choose the operation mode You can choose by pressing the up down T X buttons the following operation mode AUTO EXT RS 232 MAN 7 4 ALARM 1 After adjustment you can press again ENTER for setting ALARM 1 With the up down T N buttons you can select whether the ALARM 1 should release 12 21 as a high or as a low alarm lt gt Press again ENTER and you can set by the up down T X buttons the required alarm value in ppm 7 5 ALARM 2 After adjustment you can press again ENTER for setting ALARM 2 With the up down T buttons you can select whether the ALARM 2 should release as a high or low alarm lt gt Press again ENTER and you can set by the up down T X buttons the required alarm value in ppm 7 6 MAN manual MENU With the up down T X buttons you can pre adjust the following ranges 0 10 0 100 0 1000 0 2500 ppm plus service up to max 5000 ppm Exmpl 1 If your expexted moisture value will be 700 ppm please adjust range O 1000 ppm Exmpl 2 If your expexted moisture value will be 70 ppm please adjust range 0 100 ppm Over range If your selected range is 0 100 ppm and the actual moisture value in the sample gas will increase to
19. ponents are present that might damage the sample carrying parts of the analyzer Always observe all current safety regulations for handling sample and calibration gases and pressurized gas cylinders Flammable and or explosive gases are not to be measured by the instrument without the appropriate safety precautions 5 3 POWER SUPPLY Before placing the unit into service do always cross check the required voltage given on the data plate with your local mains power voltage The power plug is only to be connected to a grounded receptacle The protective measures are not to be by passed by using an ungrounded extension cord Every interruption or disconnection of the protective grounding inside or outside of the instrument can cause the instrument to become a safety hazard Deliberate disruptions are not tolerable 9 21 Before any attempt to open service or repair the analyzer the instrument is to be disconnected from any power source If working on an opend and fully connected instrument is unavoidable it is only to be done by authorized and trained personnel who are fully aware of all eventual hazards that are associated with this kind of work If any fuse is to be replaced it is the operators responsibility to ensure that only the same type of fuse with the exact same electrical specifications is used The use of repaired fuses or the short circuiting of the fuses is not admissible 5 4 ELECTROSTATIC ELECTRICITY
20. preciate any comments you may have negative or positive as long they are constructive cmc Instruments GmbH believes that the information in this manual is accurate The document has been carefully reviewed for technical accuracy If there should be any error cmc Instruments GmbH reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should contact cmc Instruments GmbH if errors are suspected In no event shall cmc Instruments GmbH be liable for any damages arising out of or related to this document or the information contained in it THANK YOU FOR BUYING CMC INSTRUMENTS Unpacking the instrument To provide appropriate protection during shipping the analyzer comes in a sturdy packaging IMPORTANT Should the packaging show visible signes of abuse or open damages the analyzer is to be unpacked immediately with extra care to check for eventual damage If any indication for a defective instrument is given it should under no circumstance be placed into service Immediately contact your sales representative or cmc Instruments GmbH directly for further advice After the instrument is unpacked make sure to check the packaging for additional parts and manuals Should the analyzer be stored again before it 1s being placed into service it has to be done so in the original shipping container 3 21 2 WARRANTY SERVICE POLICY REPAIR SERVICE Goods and part s
21. sample gas and the water which is beeing dissociated builds up The electrolysis current is proportional to the water content in 8 21 the sample gas FARADAY s LAW It is displayed on the instrument readout after it is beeing processed by the instruments signal amplifier This principle of measurement can be used on all gases except those which chemically react with phosphoric acid or do polymerisate The sensor works reliable in all corrosive gases like Ch HCI H S HBr HF or CO Also in combustible gases like H2 CH and other carbons The sensor can not work in ammonia NH3 5 2 SAFETY INSTRUCTIONS Do comply with these safety precautions under any circumstances Failure to comply with these regulations may be hazardous to the health of the operating personnel and or cause damage to the instrument This analyzer is not to be operated in an explosive environment without additional protective measures The analyzer has to be operated in a dry and frost free environment Avoid exposure to direct sun light and other sources of extensive heat The analyzer is only to be operated between 10 C and 50 C ambient temperature If the instrument is operated outside we recommend to install it in a Weather proof enclosure Gas inlet and gas outlet should under no circumstances be confound with each other Only conditioned sample gases are to be used with this analyzer If used with corrosive sample gases make sure to check that no com
22. tegrated S p a needle valve Flowscheme of the TMS sensor 20 21 5 Befestigungsschraube Fixing screw M4 Various mountings of the stainless steel sensor 21 21
23. w even distribution of the acid around the whole circumference This is indicated by a foaming action of the phosphoric acid The sensor has to be evently coverd with foam in the area between and around the two electrodes The foam disappears after min Now any excess acid can be dabbed off using a paper towel IMPORTANT Never touch the electrodes with the paper towel During the recovering process with new phosphoric acid the glass rod should show downstairs to avoid that droplets of the phosphoric acid touch the sensor head made in metal not guilty for glass sensors Now disconnect the sensor cord Before re installing the sensor head into the sensor bowl please check the O ring for impurities and damage Clean the O ring or use a new one if necessary Now the sensor is ready to be placed again into service 18 21 REGENERATION IN SHORT STEPS To select the service range please change the instruments MODE and go to MAN Menu chapter 7 6 19 21 For regular regeneration of sensor we are recommending our SERVICE KIT All parts and tools you need for easy regeneration contain in a stable suitcase made in plastic It consists off de ionized water acetone phosphoric acid 50 safety gloves safety glasses spanner and brush Unscrew carefully the sensor head and clean the glass rod under running water Use a clean brush to remove any mechanical impurities and rinse oncemore with de ionized water NOTE Durin
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