User Manual - Envent Engineering
Contents
1. Figure 20 Controller board schematic 33 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual 22 May 15 Chico A Sealing Compound For Sealing Fittings in Hazardous Locations Installation amp Maintenance Information INSTALLATION DAM Using Chico X Fiber make a dam in each conduit hub except the one extending upward so that the Chico A sealing compound while fluid cannot leak out of the sealing chamber metal di Geen a5 follows 1 Force the conductors forward 2 Pack fiber into each conduit hub behind the conductors 3 Push the conductors backward and force them apart 4 Pack fiber between and around the conductors in each conduit hub It is important that the conductors be permanently separated from each other so that the sealing compound will surround each conductor 5 Pack fiber into each conduit hub in front of the conductors NCAUTION Do not leave shreds of fiber clinging to side walls of sealing chamber or to the conductors Such shreds when imbedded nd may form leakage channels The in the completed dam should be even with the conduit stop 6 If the Condulet is of a type or size that has a separate work opening this should be closed by its cover before pouring the seal COMPOUND Follow these instructions carefully Use a CLEAN mixing vessel for every batch Particles of previous Last Updated batches or dirt may spoil the seal The recommended proportions are b2. through his own analysis and testing is solely responsible for AN the product selection and ensuring all responsibility safety and warning requirements of the application are met If the equipment is used in a manner not specified by Envent Engineering Ltd the protection provided by the equipment may be impaired Step 13 Allow twenty minutes for the analyzer to stabilize The analyzer calibration can be verified if calibration gas is available refer to the calibration section If no 13 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 calibration gas is available the analyzer may be operated using the factory calibration settings until calibration gas 1s available E Customer Connections protected by a circuit breaker rated 24 VDC and 5 A max and is to be installed in accordance with local electrical codes CAUTION This unit requires a disconnect device rated 24 VDC and 5 Amax must be CAUTION Turn off power before servicing Ensure breakers are off before connecting or disconnecting supply power All customer connections are indicated on the circuit board For a larger view and detailed information on the controller board please see Appendix Controller Board Schematic Note if you have unreliable power consider using a backup battery or an uninterrupted power source FURNACE LE Lid C sail e a ue Lil un e Le F3 Figure 6 Controller Board Layout amp Power Inpu
3. 1 403 253 4016 CAN Toll Free 1 877 936 8368 info envent eng com USA Office T 1 713 568 4421 USA Toll Free 1 877 936 8368 usasales envent eng com China Office Beijing China T 86 138 0119 1148 chinasales envent eng com K Envent Engineering Ltd 36
4. Receptable communication connection 28 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 Standard System Drawing 32 SAMPLE INLET 1 j 3000 PSIG MAX 1 4 SWAGELOK TUBE CS jt SAMPLE INLET 2 1 4 SWAGELOK TUBE SAMPLE VENT NE EWAGELOK GAL IBRATION INLET 1 1 SWAGELOK TUBE GALIBRATION INLET 27 1 SWAGELOK TUBE lt SAMPLE SWEEF 1 KELIENMTET 1 4 SWAGELOK TUBE SS vu SAMPLE SWEEP 2 114 SWAGELOK TUBE Figure 16 330 Standard system drawing Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 Hecommended Venting 3 o a z cl CI 5 ti D o D Lu s t x ZE nG zu H zu ug amp ug KE az ne S E o SE iz Th EL Zt S Lu 2 58 E 28 wo d lt EE o EA O PH o Sar TE f GER GB o a23 o zZ 3 gt Il D THA ls EN g j ci e ANN 353v 13 OL LO3NNOO LON OC Jens S3Hd32v8a ON Aldd Figure 17 3308DS Recommended venting 30 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 BUILDING WALL 8 gd 1 8 SWAGELOCK TUBE CALIBRATION INLET m II es om II y S a E Fa TI AMP H SAMPLE EDUCTOR i ma d d 3 g e P 235 g H H d XT 8 EN a E aT g f 4 NG E Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 Figure 18 331 Recommended venting Calibration Gas Humi
5. inlet regulator A three way valve allows the user to switch from sample gas to calibration gas The sample sweep valve on the filter is left slightly open to drain any liquids that may collect and to provide a sample sweep to reduce lag time in the sample piping There are labels on the sample system to indicate which sensor is monitoring which sample of gas The 1 label indicates the Primary sensor The 2 indicates the Secondary sensor 12 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 D 4 Installation Procedure Step 1 Unpack the analyzer and check for damage Step 2 Ensure that the analyzer power supply and range are suitable for the application Step 3 Check that the hazardous location rating is suitable for the installation location Step 4 Select an installation location that is close to the sample point e Ensure that the selected installation site provides adequate room for maintenance and repair Step 5 Bolt the analyzer to the wall with the tape drive at approximately eye level Step 6 Wire power analog outputs and discrete outputs to the analyzer See section D CAUTION Turn off power before servicing Ensure breakers are off before connecting or AN disconnecting supply power CAUTION 330SDS Seals Not Poured Pour seals before energizing the circuit see APPENDIX Step 7 Tube the sample inlet sample sweep and sample vent lines to the analyzer 1 4 316 stainless steel
6. nennen nnns 14 E2 Anaoa QUMI S eenas r AGA AA AA 15 Eads POTTS CET NAA HEN 16 PME WC Lae RE AA 17 F 1 Ga AA PA 17 A eat OME ROC Se AA AA AA npe inet ian cdO iiM 17 Faad REZO Senor TOC CO eiectus r depu Lees tM UD MEN ER dU CER MU IUE nest 18 P2 App an eT EE 19 G Maintenance amp TrouDIesHoOOUllp i deers ote baee be Y XIYEEIQD EIS EEE PNOEN PIRE e bE FEX IY E EXRE e SER POE 20 G 1 Monthly CHECKUP m E 20 G 2 brell 20 G 3 Sample Conditioning System Cleaning Procedure ccccccccccccecceceeeeessseeeseeseceeceeeeeeeeeaeeees 22 APPENDICE E 23 Modbus E e 23 Recommended pate Paris LASi AN NANA AA LANA AA AA GANA 24 H25 Concentration Conversion PAGONG BANANA NANANA 24 EE 25 a AA 26 Standard System AN 2 Recommended NENG soietioa dd GAANO APAN don qoa cd idu ina diua PUn DUO UU dU MMC tuu M00 PUN DU OH EN UNE E UNO 28 Calibration Gas ee TE 30 Controller Board a EE 31 Chico A Sealing Gana 32 Optional Low Pressure 5 Wie Wits E 33 Envent Engineering Ltd 330SDS amp 331SDS Operators Manual Last Updated 22 May 15 Figures and Tables A 1 Figures Figure 1 3308 amp 3315 Analyzer principle of operation duagram nnne 6 Fisite 2 Sample chamber ANO ANG ANA KA AA Ia Pet RUE ANNI MAE AAO 7 Figure 3 Eductor block information diagram eeeeeessssssssseseseeeseeeee nennen nnne LES ASEAN NANANA 8 Figure 4 330 standard operator interface similar to 231 9 Peares 3318330 FLOW Di
7. 0 ppm 25 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 Sub Assemblies 1 1 550008 TAKEUPWHEEL 2 Tase FEED WHEEL SHAFT E A COUPLING AM O 380082 T EXPLOSION PROOF SHAFT ASSEMBLY EIE N 12 V STEPPER NOTOR Figure 11 330SDS Motor box assembly exploded 26 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 Description Part number 1 Trigger Slide E 330075 8 Senosr block clips 330074 BE 33023 Figure 12 Sensor chamber assembly exploded Computer Software The software for the 330SDS amp 33ISDS allows the user to change the factory configuration The software is available on the Envent website at www envent eng com Contact our technical support department for assistance A separate instruction manual is included with the software In order to communicate with a H2S analyzer plug into the RS 232 port located just above the mainboard 2 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 SERIAL PORTS ALOG INPUTS AN D5 495 RS_292 I2C STEPPER MOTOR 258555 8885 EPPR Z L bzz3 ng mg mag RS 232 communications connection Figure 13 331 RS 232 Communication connection In order to communicate with a 330SDS plug into the DIN receptacle located just behind the window Figure 14 330 DIN
8. Model 330SDS amp 331SDS Hydrogen Sulfide Analyzers Operator s Manual Last Updated Friday May 22 2015 Revision 3 Envent Engineering Ltd Envent Engineering Ltd 7060 Bay E Farrell Road S E Calgary Alberta Canada T2H 0T2 Tel 403 253 4012 Fax 403 253 4016 Email info envent eng com Web www envent eno com For further information or a copy of our most recent operating manual please visit us at www envent eng com Envent Engineering Ltd reserves the right to change product design and specifications at any time without prior notice All products carry a one year limited warranty from the date of start up or 18 months from date of shipment whichever occurs first F O B the factory against defective parts or workmanship Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 TABLE OF CONTENTS m UU CSN E TEE 2 A 1 PONG a AA AA AA AA 2 A 2 BUD aaa Aa 2 Do NG NA AA AA AA AA AA 3 RI Nan e a a AA a paka 4 B 2 Technical Eeer 5 Ce EEGEN AA PAPA Eris Eri ANA AA PARA tees 6 CL Eductor Vent ASSEMDl 8 C2 Operator a IO MR 9 IX dnstallation and Siart BANGAG BKA AINA AAKALA 10 D 1 sample Point EE ee 10 D2 Sample Volume and Hoy EE 10 Dig Sample Lag Time RE 10 D 3 GEIER 11 D 4 Installation ee orsi co mic tuu GA MANDO a a NANO N sna 12 E LUSLOMer EI VIDIT Em 13 E 1 Relay Outputs and Solenoid Drtver eene eene nnn nnn nnn
9. N All connections must be LEAKTIGHT to insure the effectiveness of the analyzer as well as SAFETY The user through his own analysis and testing is solely responsible for the product selection and ensuring all responsibility safety and warning requirements of the application are met If the equipment is used in a manner not specified by Envent Engineering Ltd the protection provided by the equipment may be impaired CAUTION Do not use solvents brake cleaner soaps or detergents CAUTION Turn off power before servicing Ensure breakers are off before connecting or disconnecting supply power CAUTION This unit may require a disconnect device rated 24 VDC and 5A max must be protected by a circuit breaker rated 24 VDC and 5A max and is to be installed in accordance with local electrical codes CAUTION This unit may require a disconnect device rated 240 VAC and 5A max must be protected by a circuit breaker rated 240 VAC and 5A max and is to be installed in accordance with local electrical codes CAUTION The eductor is required with model 331SDS in order to maintain electrical safety and certification in Division 2 Areas CAUTION The glass window on the model 3308DS must remain installed in order to ensure area classification is maintained Envent Engineering Ltd 330SDS amp 331SDS Operators Manual Last Updated 22 May 15 B 2 Technical Specifications Table 1 Technical Specifications A method sulfide in Gaseous Fuels Lea
10. S Operator s Manual Last Updated 22 May l5 C 2 Operator Interface d CAUTION The glass window on the model 330SDS must remain installed in order to ensure area classification is maintained To configure the 330SDS use the magnetic wand from outside the enclosure window If the area is non hazardous the window can be removed if preferred in order to press the internal buttons directly The 331SDS is configured by using the push buttons in the same manner as shown below Figure 4 330SDS standard operator interface similar to 331SDS Table 3 Analyzer display button functions Button Description Function Bypass Used to inhibit all analyzer alarms to a non alarm state and sets the analog 4 20 mA output to 2 mA The Bypass LED illuminates when Bypass mode is enabled Used to move the cursor to the right Also used to SAVE configuration adjustments configuration adjustments Menu Set Used to cycle through the menu options Also used to increase numerical values when making configuration adjustments 10 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 p Installation and Start up Your analyzer was configured functionally tested and calibrated at the factory All test and calibration data is documented in the factory calibration report See the end of this manual AN CAUTION The analyzer should be mounted in an area in which it is not exposed to vibration and excessive pre
11. a tain NAGA saeedeatinnetsaavnbebabeneaadaadnneidacsnmatsanbuntadadenaesss 11 Figure 6 Controller Board Layout amp Power Input eese nnns 13 Figure 7 Relay outputs and solenoid divers 14 Figure 8 4 20 mA Output Wiring Ctons 0 aasa 15 Figure 9 Powered 4 20 mA OD OEL orare tede ioo uota a ioi nen REPOS zu OR oce hon E Aena iden MEAS CoU oC Ue eO cU EEEE d USO UPS d Lust sR es 16 Figure 10 331 Tape change procedure similar to 2201 19 Figure 11 330 Motor box assembly exploded een 29 Figure 12 Sensor chamber assembly exploded ener 25 Figure 13 331 RS 232 Communication connection E 26 Figure 14 330 DIN Receptable communication Conpechon eeeesseesessssesssssssssssssssssssssssseee 26 Figure 15 331 Standard system dra WIBP eegene gedet dee 24 Figure 16 330 Standard system drawung eene nennen nennen esse snen nn rrr nnn nenne nennen 27 Proure 17 330 Recommended VUNG 15 sncasasanesansagnesshetensaaatgamensnasanesansatecsbeseneaaadaamensausanesansatneceantensdeocdenas 28 Proure 15 331 Recommended venn E 29 en e Calibration gas UM TE 30 Figure 20 Controller board schemanc eene 31 A 2 Tables Table 1 Ka IR Ea 3 Table 2 Range amp Aperture OHIO 7 Table 3 Analyzer display button fFUNCtHIONS 1111 11 9 Table 4 Sample Lag Time vs Tubing Suze en nnne nnne nennen ss ssn nnn nnn nnn nnne 10 Table 5 Customer connection summary see Figure above 11111777777777
12. alyzer and its functions Take note of all the caution symbols and notes as they will alert you of potential hazards and important information GP E GPP PPP SEPP Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 B 1 Warnings and Cautions CAUTION The analyzer should be mounted in an area in which it is not exposed to vibration and excessive pressure temperature and environmental variations CAUTION Ensure that the analyzer received is suitable for the installation location electrical classification of the installation site e The 330SDS is designed for Class I Division I Groups B CD e The 331SDS is designed for Class I Division 2 Groups A B C amp D CAUTION Analyzer may utilize an optional CCS Model 646 Series pressure switch located on the side of the electrical enclosure e Dual Seal MWP 500PSI e Annunciation is Visible Leakage from the pressure adjustment cover Flow from this cover can indicate the possibility that a failed primary seal condition could exist in the pressure switch CAUTION 330SDS Seals Not Poured Pour seals before energizing the circuit see APPENDIX CAUTION Dis assembly of the pressure regulator and solenoids in the field is not advised Consult the factory if the regulator or solenoid appears contaminated CAUTION Before resuming line pressure be sure that all port connections sample sweep and sample conditioning system are securely installed CAUTIO
13. ample Conditioning System Cleaning Procedure AN CAUTION Do not use solvents brake clearner soaps or detergents During startup or plant upset situations the hydrogen sulfide analyzer may become contaminated with amine or hydrogen sulfide scavenger solution This may cause the analyzer to read low this can be determined at calibration If the analyzer reads low it will require incremental increases in the gain to maintain calibration Please refer to factory calibration sheet for factory set gain factor The scavenger solution is water soluble and therefore is relatively easy to clean Material List Cleaning kit part number 330900 e Alconox Laboratory cleaner or equivalent residue free cleaning agent Do not use solvents detergents or soaps e Fresh water e 100 Isopropyl Alcohol Do not use rubbing alcohol Do not use brake cleaner product e Large bucket to mix cleaning solution e Rinse bottle Procedure 1 Mix a 196 2 1 2 tbsp per gallon of Alconox in warm water 2 Sample line tubing a Shut off flow at the sample point prior to sample conditioning system b Flush the sample line and components with cleaning solution c Rinse with fresh water d Flush with isopropyl alcohol e Dry with clean dry instrument air or gas 3 Sample conditioning system CAUTION Disassembly of the pressure regulator and solenoids in the field is not advised AN Consult the factory if the regulator or solenoid appears contaminated Remove fil
14. ample inlet valve Press the Menu Set button until Mtr Run is displayed Push the right arrow to move the H2S sensing tape forward e Ensure there is white tape at the sensor block window Remove the sensor cover Press the small pushbutton on the sensor block located on the lower left side next to the wire connector e The sensor block will implement a re zero procedure indicated by a lit red LED e When the re zero procedure is complete the LED light will turn green Initiate another motor run Step 3 amp 4 Press the Menu Set button until mV is displayed e Value should be between 900 amp 1100 mV Step 8 Put on sensor cover Turn on sample gas flow using sample inlet valve Set the gas pressure to 15 psig and the flowmeter to 2 0 Remove the analyzer from bypass 19 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 F 2 2 Tape Change Procedure STEP 4 Install new tape Tape must be hanging under and mot over the acetate tape roll Figure 10 331 Tape change procedure similar to 330 20 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 c Maintenance amp Troubleshooting G 1 Monthly Checkup Your analyzer will provide reliable service with very little attention If the analyzer is kept clean there should be no requirement to recalibrate from factory gain settings However regular check up will ensure that the anal
15. apply to analyzers with standard sample systems however the basic principles still apply Step 1 Press the bypass button and verify that the Bypass LED illuminates Step 2 Turn off calibration gas flow using the 3 way Calibration In valve e Note that there should always be suction in the eductor sample vent Step 3 Ensure there is enough H2S sensing tape See E 2 2 if tape requires changing Step 4 Ensure there is enough 5 acetic acid if the analyzer has a humidifier Step 5 Push the Menu Set button until Mtr Run is displayed Step 6 Push the right arrow to move the H2S sensing tape forward e Ensure there is white tape at the sensor block window Step 7 Press the Menu Set button until the mV reading is displayed mV Step 8 If the mV reading is 1000 100 mV proceed to the next step otherwise a Ensure there is no brown stain on the sensing tape at the sensor block window b Ensure the sample chamber is clean c Re zero the sensor block See section E 2 1 Start at Step 4 d Re check that the mV reading is 1000 100 mV Step 9 Connect calibration gas bottle to the Calibration In valve a Ifthe analyzer does NOT use a humidifier See Appendix Calibration Gas Humidifier for further instructions Step 10 Set the calibration gas pressure to 15 psig and the flowmeter to 2 0 Step 11 Allow the analyzer reading to stabilize 10 to 15 minutes Step 12 Press the Menu Set button until the gai
16. d 330SDS amp 331SDS Operators Manual Last Updated 22 May l5 Figure 8 4 20 mA Output Wiring Options Alarm Set Points Note Optional 4 wire 4 20 ma option The Model 330SDS amp 331SDS comes standard with 2 wire 4 20 ma output An optional 4 wired powered 4 20 ma output is sometimes included It is a small board located just below the analog output terminal on the main processor board 4 20 mA Figure 9 Powered 4 20 mA option 17 Envent Engineering Ltd 330SDS amp 331SDS Operators Manual Last Updated 22 May l5 F Calibration F 1 Calibration amp Alarms Analyzer configuration and calibration was set at the factory The factory gain and alarm settings can be found in the factory calibration sheet found at the end of this manual Analyzer settings can be read and adjusted using the operator interface F 2 Calibration Procedure Ensure a suitable calibration gas and a clean stainless steel regulator with the correct CGA fitting is available Check that the regulator is rated for calibration cylinder pressure e The recommended calibration gas is hydrogen sulfide in a balance of nitrogen certified and analyzed e Calibration gas concentration should be approximately 2 3 of the full scale range of the analyzer or at the alarm point of the facility to be monitored e Check the expiry date on the calibration gas bottle before using e The recommended calibration gas supplier is AirGas Note that the following instructions
17. d Acetate Reaction Rate Method Ambient 0 50 C standard consult factory for other requirements O to 90 Temperature humidity non condensing 12 24 VDC less than 3W 300W when total sulfur option is included Electrical Certification 1 5 of reading on channel 1 2 0 of reading on channel 2 Display Multi character LCD with back lighting menu 1s scrolled by internal button or magnetic wand 330SDS Serial 1 RS 232 Modbus protocol 2 RS 485 Modbus protocol Two additional serial ports plus Ethernet as an option 4 SPDT relays 120 VAC 5A maximum 4 solid state solenoid drivers Optional Equipment Total sulfur reaction furnace converts all sulfur compounds to hydrogen Option sulfide which allows the analyzer to measure total sulfur Calibration Stream Switches between multiple sample streams or between hydrogen sulfide and total sulfur measurement ranges above 100 ppm Liquid sample conditioning system to measure hydrogen sulfide in sampling liquids Outputs Two 4 20mA outputs loop power required optional 4 20mA powered output boards are available Envent Engineering Ltd 330SDS amp 331SDS Operators Manual Last Updated 22 May l5 c Principle of Operation Envent Engineering Ltd models 330SDS amp 331SDS uses ASTM D4084 07 Standard Test Method for Analysis of Hydrogen Sulfide in Gaseous Fuels Lead Acetate Reaction Rate Method This method uses lead acetate impregnated paper referred to by Envent Engin
18. difier The Calibration Gas Humidifier 1s used for calibration of Sulfur Sentries and H2S analyzers that do not use humidifiers To use this humidifier follow these steps 1 Connect the short end into the calibration port of the analyzer ensure arrow 1s pointing towards the analyzer 2 Connect the long end into the calibration gas bottle Figure 19 Calibration gas humidifier 32 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 Controller Board Schematic The controller board mainboard is used in both the 331SDS and 330SDS models Note that the power supply shown here is for DC applications but directly applies to AC STEPPER MOTOR STEPPER MOTOR DRIVER Pouer Input POWER SUPPLY de sinu ve3dWa3l NJAO y QION3 IOS QION3 IOS J c rm Ma DIGITAL EXPANSION PORT 12 VOLT ip 5 VOLT POWER SUPPLY S1 S1 52 52 S3 83 84 S4F1 F1 Solenoid amp Furnace Outputs F EH Y RS 485 RS 232 Sag IIIT P T Microcontroller RLY 2 RLY 3 RLY 4 SERIAL PORTS NOCOMNC NOCOMNC NOCOMNC NOCOMNC n Soa qs Relay Dutputs RLY 1 T Ll Tt HL ads ANALOG INPUTS 2883 VENERE ML 1i m DIG CC eg KA sefsor fo vie MS H WU bp M DI 4 o j eg Analog Outputs l i p DI 1 ge DI 2 u gea 01 34k 01 3 f DI 4 Display Board ENVENT ENGINEERING Digital Inputs H2S ANALYZER CONTROLLER REV 1c
19. eene enne 13 Table 6 Troubleshooting recommendatons lessen eene enne n nennen nennen senes 20 Table 7 Default Modbus Registry DISC echas estero EI NGANGA DEAN NAAAGNAS 23 Table 8 Recommended spare parts list for 2 wears 24 Table 9 H2S Concentration conversion TIoactorg rre een nnns 24 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 B Introduction The Envent Engineering Ltd model 330SDS amp 331SDS hydrogen sulfide analyzers can be configured via software and hardware to measure a wide range of hydrogen sulfide concentrations in gases as well as in liquids With the addition of a hydrogen reaction furnace the analyzer is also capable of total sulfur measurement This manual describes the operation of the hydrogen sulfide analyzer Additional sections will describe the operation of any optional equipment This manual contains a comprehensive overview of Envent Engineering s 330SDS a 331SDS H2S analyzer and step by step instructions on Installation and Startup Operation Maintenance Troubleshooting This manual should be read and referenced by the person who will install operate or have contact with the 330SDS and or 331SDS Take time to familiarize yourself with the content of this Operator s Manual reading each section carefully so you can quickly and easily install and operate the analyzer The manual includes images tables and charts that provide a visual understanding of the an
20. eering Ltd as H2S sensing tape The H2S sensing tape reacts when in contact with hydrogen sulfide by the relationship shown below This reaction is visibly evident by a brown stain directly on the H2S sensing tape Considering this reaction the electronics built into the Models 330SDS a 331SDS have been programmed to measure the rate of darkening over time which in turn gives the hydrogen sulfide concentration H S Pb CH COO gt PbS 2CH COOH SAMPLE CHAMBER __ SAMPLE IN P SENSOR BLOCK H ini SAMPLE VENT Figure 1 3308DS amp 331SDS Analyzer principle of operation diagram The figure above shows a flow regulated pressure regulated and filtered process sample gas passing through a membrane humidifier and into the sample chamber See the following figure A window in the sample chamber allows the gas to come in contact with the sensing tape creating the brown stain The SDS series uniquely measures rate of change on both sides of the sensing tape Allowing for simultaneous readings of two samples Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 Gas Flow Window Sample Inlet Aperture Strip lt P Sensor block e clips T From humidifier gt lt P Trigge
21. f Analog Input 2 jumper removed Re install jumper in Analog Input across 4 20 amp 4 20 g Sensor block fault Re zero Sensor block Refer to Sensor Re zero procedure check for green status led on sensor block h Contaminants in sample Clean sample chamber Replace aperture and window if chamber required Clear grease from window Envent no longer uses grease on the chamber window Applies to earlier H S analyzers i Contaminants in sample Sample conditioning system requires cleaning Refer to conditioning system Cleaning procedures Tape does not a No tension on take up reel Check setscrew in take up reel collars Check to see if advance manual advance is possible on tape Continued on next page 21 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual 22 May 15 Problem Possible reasons Last Updated Possible Solution Tape breaking a High liquid content in sample gas Genie probe and additional filtration may be required b Feed wheel not spinning freely Dust and refuse build up between feed wheel and chassis Requires removal and cleaning of chassis c Tape cover wheels pressing against tape Tape cover wheel became warped Needs to be flattened to not contact tape when on feed wheel bolt d Trigger slide not seated properly Ensure trigger slide is seated in groove of sample chamber Slow Response a Aperture in chamber not optimi
22. n setting is displayed Gain 18 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 Step 13 Adjust the gain setting such that the analyzer reads the correct concentration a Calculate gain calculation should be close to the factory calibration sheet See end of this manual CalGasConcentration x CurrentGain NewGain Current Re ading b Press the right and or left arrows until the cursor is underneath the number you wish to change c Adjust the number using the Menu Set pushbutton it will increase until 9 then cycle back through to 0 d The new gain can be saved by pressing the right arrow until Saved appears or discarded by pressing the left arrow until Cancel appears Step 14 Allow the analyzer to complete two cycles with the new gain setting e The reading should match the calibration gas concentration Step 15 Turn on sample gas flow using the 3 way Calibration In valve Step 16 Set the sample gas pressure to 15 psig and the flowmeter to 2 0 Step 17 Disconnect calibration gas bottle Step 18 Allow the analyzer to return to a no alarm condition Step 19 Remove the analyzer from bypass Step 20 Calibration is complete F 2 1 1 2 3 4 5 6 T 8 9 10 11 Re Zero Sensor Procedure Press the bypass button and verify that the Bypass LED illuminates Turn off sample gas flow using s
23. r Slide Sensor Block Sample Outlet H To 3 we Sensor Board Figure 2 Sample chamber and parts For concentration applications over 10 ppm there may be a restricting aperture behind the window Various sizes of apertures match different measurement ranges See the table below Table 2 Range amp Aperture Information Aperture Range Size PN 100 ppb 10 ppm Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 C 1 Eductor Vent Assembly AN CAUTION The eductor is required with model 331SDS in order to maintain electrical safety and certification in Division 2 Areas The analyzer reading can be affected by positive or negative pressure on the sample vent line This can be caused by strong winds blowing across or directly into the vent or by mechanical venting exhaust fan The eductor will eliminate any influence on the analyzer reading optional for 330SDS In cold climates since the analyzer is venting a moist sample freezing can occur The eductor will help prevent freezing problems in the vent line due to the increased velocity and drying effect of the sweep gas The eductor vent can also be retrofitted to existing analyzes Atmosphere Atmosphere Vacuum Suction Normal DO NOT Restrict Figure 3 Eductor block information diagram Envent Engineering Ltd 330SDS amp 331SD
24. ssure temperature and environmental variations Envent Engineering is available for installation and start up if required See Envent s pre commissioning guidelines on our website http www envent eng com documents php D 1 Sample Point Selection The sample to the analyzer must be representative of the process stream and should be taken from a point as close as possible to the analyzer to avoid lag times and sample degradation in the tubing A Ja weldelet is required for installation The probe must be installed vertically on a horizontal section of pipe ensuring that the sample is drawn from between the middle and the top third of the pipeline An optional Genie GPR probe regulator may be included The function of this probe is to ensure a clean dry sample to the analyzer and to reduce the pressure of the sample The lower pressure will improve the response time of the analyzer For installation instructions refer to associated documents Do not install the Genie probe regulator on a vertical pipe D 2 Sample Volume and Flow Rate The sample should be supplied to the analyzer at 10 15 psig and at a flow between 100 200 cc min set flowmeter at 2 0 on both flow indicators A bypass sweep is recommended to reduce sample lag time in the sample line if it 1s at high pressure or it 1s longer than 15 feet The standard sample tubing material is 1 4 316 stainless steel however 1 8 stainless steel tubing can be used if the response
25. t Note Spare fuse F3 included if total sulfur not installed Table 5 Customer connection summary see Figure above application Positive Negative Neutral Ground AC L H L N FG hot neutral DC L H L N NA 14 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 E 1 Relay Outputs and Solenoid Driver Four relays are provided as status outputs to drive external relays or solenoids Envent recommends use of the solenoid drivers for external loads DO NOT supply external power to solenoid drivers The four solenoid drivers provided to directly drive solenoids for shutdown auto calibration or stream switching LLLULELELLLELI 12345 6 7 B 9101112 123435 EY RLY 1 RLY 2 RLY 3 RLY 4 NO COMNC NOCOMNC NOCOMNC NO COMNC 51 5L 82 52 53 53 S4 54F Fl RELAY OUTPUTS SOLENOID DRIVERS Figure 7 Relay outputs and solenoid drivers 15 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 Es Analog Outputs Two isolated analog outputs are provided Both analog outputs are normally set to the full scale range of the analyzer Loop power 10 to 32 volts sourced from the end device PLC is required for the analog outputs If it is not possible to provide loop power optional powered AO boards are available y E wl ke 1 e Si VM ICT d CECELETE TETE TTlTT TITTTITTITY LA 16 Envent Engineering Lt
26. te Output 3 Solenoid 3 0002 1003 Discrete Output 4 Solenoid 4 0003 1004 Discrete Output 5 Relay 1 0004 1005 Discrete Output 6 Relay 2 0005 1006 Discrete Output 7 Relay 3 0006 1007 Discrete Output 8 Relay 4 0007 1008 Virtual Output 1 DI 1 Low Tape 0008 1009 Virtual Output 2 Sensor Low 0009 1010 Virtual Output 3 Sensor High 0010 1011 Virtual Output 4 Low Temp 0011 1012 MODICON 32 bit Enron Protocol Floating Point standard protocol Process Stream 1 H5S 40001 7001 Process Stream 2 H5S 40002 7002 Analog Input Current 1 raw mV 40003 7003 Analog Input Current 2 CO or F 40004 7004 RRA Current Value H5S 40005 7005 Board Temperature C 40006 7006 24 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 Recommended Spare Parts List Table 8 Recommended spare parts list for 2 years Part Number Qty Description humidifier rebuild kit c w elbows nafion tube ftg 330063 330079 330103 330130 330133 330406 MEN 330423 13 chubby quartz tube total sulfur option only 330431 Kalrez o rings total sulfur option only 330900 Tubing cleaner fittings maintenance kit Furnace Element total sulfur option onl 330424 H2S Concentration Conversion Factors Table 9 H2S Concentration conversion factors Original Unit Multiply By Final Unit mg m 0 698 ppm ppm 0 0626 grain 100 cf Vo 10 000 ppm Mole kMole 100
27. ter elements from filter housings and discard Remove all sample conditioning system components and soak in cleaning solution Ensure valves are fully open when cleaning Flush sample components with fresh water Rinse with isopropyl alcohol Blow dry with clean compressed air or fuel gas If the any clear Tygon tubing appears discolored replace the tubing Tubing on humidifier should be replaced if it appears contaminated 4 Re assemble Stainless Steel Tubing to analyzer according to analyzer drawing refer to back of manual 5 Once sample conditioning system has been re assembled apply calibration gas to the analyzer refer to section E 2 6 Adjust gain to indicate value from calibration certificate 7 Gains for streams should be 2 00 from factory cal sheet or last calibration e Ifthe reading is not with in range then the analyzer sample conditioning system may need further cleaning Please consult factory OO POD Oo D o 23 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 APPENDICES Modbus Registry Please note that due to differences in PLCs these registries may be shifted by one value Note that these can be modified if necessary Table 7 Default Modbus Registry list MODICON 32 bit Enron Protocol standard protocol Discrete Output 1 Solenoid 1 0000 1001 Discrete Output 2 Solenoid 2 0001 1002 Discre
28. time is critical Carbon steel sample line and or fittings are not acceptable D 2 1 Sample Lag Time vs Tubing Size Table 4 Sample Lag Time vs Tubing Size Tube Tube ID ID Flow Flow Pressure Lag Lag Size Gauge cm SCFH Std PSIA Time Time per 9 cc min per 100 100 min sec 11 Envent Engineering Ltd 330SDS amp 331SDS Operators Manual Last Updated 22 May l5 1 8 20 0 081 0205 al 2359 50 S 9 D 3 Sample Conditioning The function of the optional sample conditioning system is to regulate and filter particulates or free liquids from the sample Consideration must be taken of upset conditions as well as normal conditions when designing the sample conditioning system The figure below shows the typical sample conditioning system used for the 330SDS amp 331SDS Sample conditioning systems are available that provide sample dilution multiple stream switching auto calibration liquid measurement capability and or total sulfur measurement 330 SDS FLOW DIAGRAM FLOW DIAGRAM a rei c ED EDUCTOR PRESSURE REGULATOR FILTER ad pod NEEDLE VALVE BLOCK VALVE I ot 3 WAY VALVE I wemuvem Li N OBEN T z a G PR CALIBRATION IMLET 331 SDS FLOW DIAGRAM w AAA d Le BAG NL CALIBRATION INLET aw o amb Figure 5 331SDS amp 330SDS Flow Diagram The standard coalescing amp regulated sample conditioning system consists of a 5000 psig inlet filter and a 3000 psig
29. tubing is recommended for the sample tubing 1 8 316 stainless steel tubing can also be used 1f the response time of the analyzer is of particular concern e All fittings in the sample and vent lines must be 316 stainless steel e The vent line should be tubed in 3 8 stainless steel tubing to a maximum of o e 1 2 316 stainless steel tubing should be used for vent lines exceeding 6 e The tubing should be installed with a slight downward slope and should be as short as possible e The sample vent line must be tubed to atmospheric pressure and cannot be connected to a flare line Note For recommended venting see Appendix Recommended Venting Step 8 Ensure there is enough H2S sensing tape Step 9 Ensure there is enough 5 acetic acid if the analyzer has a humidifier Step 10 With the sample pressure turned off sample inlet valve closed a Apply power to the analyzer The display will illuminate and the sensing tape will advance b Press the menu button until mV is displayed Check that the mV reading 1s 1000 mV x 100 mV AN CAUTION Before resuming line pressure be sure that all port connections sample sweep and sample conditioning system are securely installed Step 11 Turn on sample gas flow open sample inlet valve Step 12 Open the sweep valve slightly and adjust pressure regulator to 15 psig and the flowmeter to 2 0 CAUTION All connections must be LEAKTIGHT to insure the effectiveness of the analyzer as well as SAFETY The user
30. ure switch has been set at the factory to 10psi on the descending side therefore the analyzer will go into alarm when the pressure of the gas decreases to 10psi or below The figure shown below shows how the pressure switch is wired to the analyzer Piease note that there is a fail safe when connecting the normally open wire NO rather than the normally closed wire NC the analyzer will also go into alarm if there is a problem with the wires ex one cut Pressure switch NC COMM Envent Engineering Ltd mainboard The pressure switch can be wired to any of the open discrete inputs sindi eirbrt on the mainboard Update the configuration when changing discrete inputs so that the analyzer can awcknowledge the change 35 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 This document has been continuously improved and revised over time see the table below for revision rev information o 2014 02 14 Manual Created E x 2 15 Fix Mistakes on different sections 3 2015 0522 Fix Power rating when using Total sulfur For further information or a copy of our most recent operating manual please visit us at www envent eng com Envent Engineering Ltd reserves the right to change product design and specifications at any time without prior notice Head Office 7060E Farrell Road SE Calgary AB T2H 0T2 Canada T 1 403 253 4012 F
31. y VOLUME 2 parts of Chico A compound to 1 part of clean water Do not mix more than can be poured in 15 minutes after water is added Use cold water Warm water increases speed of set ting Stir immediately and thoroughly CAUTION If a batch has started to set do not attempt to thin it by adding water or by stirring Such a procedure may spoil the seal Discard partially set material and make up fresh 34 batch After pouring immediately close the pouring opening FOR APPLICATIONS INVOLVING GROUPS C AND D NCAUTION Sealing compound to be mixed ONLY at temperatures above 35 F 2 C and ONLY poured into fittings that have been brought to a temperature above 35 F 2 C Seals must NOT be exposed to temperatures below 35 F 2 C for atleast 8 hours FOR GROUP B APPLICATIONS NCAUTION Sealing compound to be mixed ONLY at temperatures above 40 F 4 4 C and ONLY poured into fittings that have been brought to a temperature above 40 F 4 4 C Seals must NOT be exposed to temperatures below 40 F 4 47C for at least 72 hours KEEP compound dry by having container cover tightly closed when not in use NOTE For additional details see IF 287 packed with sealing fitting Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May l5 Optional Low Pressure Switch When there is low or no gas pressure entering the analyzer the pressure switch triggers the analyzer to alarm The press
32. yzer 1s operating to specifications e Ensure that the tape take up and feed reels are tight e Ensure that the flow meters humidifier tubing and sample chamber tubing are free of liquid or particulate contamination e Check that the sample conditioning filters every tape change or when sample conditioning system is saturated with liquid Replace the inlet filter as required G 2 Troubleshooting For other possible solutions please visit the Frequently Asked Questions section of our website at www envent eng com H2SFAQ php Table 6 Troubleshooting recommendations Problem Possible reasons Possible Solution Erratic H2S a Trigger slide not seated properly Ensure trigger slide is seated in the groove of the sample Readings chamber b Pressure in building moving up Eductor may be plugged or vent blocked Check that all vent and down from fan exhaust or tubing and fittings are 316 stainless steel sized 3 8 or larger wind c Sample vent either blocked or Vent should be 3 8 or larger tubing on a downward slope frozen Possible heat trace required d Liquid carry over in sample Sample conditioning system requires cleaning Refer to conditioning system Cleaning procedures e Regulator not maintaining 15 Pre regulation to 50 psig of sample at sample point Possible psig regulator requires repair or replacement of Hydrocarbon liquid carried over through the sample regulator Heated regulator may be required
33. zed for range Removal or change of aperture type required Contact Envent tech support for ideal setting b Liquid contamination in sample tubing Sample conditioning system requires cleaning Refer to Cleaning procedures c Sensor block in fault Re zero Sensor block Refer to Sensor Re zero procedure Higher or Lower than expecting reading a Liquid contamination in sample tubing Sample conditioning system requires cleaning Refer to Cleaning procedures b Sample vent either blocked or frozen Vent should be 3 8 or larger 316 stainless steel tubing on a downward slope Possible heat trace required c Contaminants in sample chamber Sample conditioning system requires cleaning Refer to cleaning procedures Fault light indicated a Sensor Low fault Re zero Sensor block Refer to Sensor Re zero procedure b Sensor High fault Re zero Sensor block Refer to sensor re zero procedure c Low Tape Sensing tape requires change Possible low tape sensor failure d Low pressure Pressure on outlet of regulator is lower then set point of pressure switch factory set to 10 psi Sensor Fault a Sensor didn t zero on white tape Re zero Sensor block Refer to Sensor Re zero procedure b Sensor Wire failure Wire or Sensor requires replacement 27 Envent Engineering Ltd 330SDS amp 331SDS Operator s Manual Last Updated 22 May 15 G 3 S
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