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Envent Engineering Ltd.

Page 17

Revision 1

Figure 6. Space Requirements for 330S-Ex with Standard Backpan (Size may vary)

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Содержание 330S-Ex

Страница 1: ...Envent Engineering Ltd Hydrogen Sulfide Analyzer Model 330S Ex Model 330SDS Ex User s Manual Revision 1 21 Jan 2022...

Страница 2: ......

Страница 3: ...SDS 10 INSTALLATION 11 Receiving the Analyzer 11 Unpacking the Analyzer 11 Standard spare parts for 330S Ex H2S analyzers 11 Installation procedure Start up 12 Installation Requirements 13 Electrical...

Страница 4: ...g Tape Change Procedure 35 Sample Conditioning System Cleaning Procedure 36 Material List 36 Procedure 36 TROUBLESHOOTING 38 APPENDICES 48 Recommended Spare Parts List 48 Sealing Compound For sealing...

Страница 5: ...igure 9 Space Requirements for 330SDS Ex with Total Sulfur Option Backpan size may vary 20 Figure 10 Recommended Venting for 330S Ex Same as the 330SDS Ex H2S Analyzer 22 Figure 11 AO 4 20 mA Output W...

Страница 6: ...n furnace for total sulfur measurements Throughout this document will be referring to the models 330S Ex However the information applies equally to the 330SDS Ex Dual sensor unless otherwise stated To...

Страница 7: ...arranty The foregoing warranty shall not apply to defects arising from Improper or inadequate maintenance by the user Improper or inadequate unpacking or site preparation installation Unauthorized mod...

Страница 8: ...of hazards that could result in major injury or death Description of hazards that could result in minor injury or property damage Description of important information regarding safety of personal and...

Страница 9: ...ct selection safety and warning requirements for the application If the equipment is used in a manner not specified by Envent Engineering Ltd the protection provided by the equipment may be impaired D...

Страница 10: ...flow from this cover can indicate the possibility that a failed primary seal condition could exist in the pressure switch If the 330S Ex or the 330SDS Ex has a total sulfur enclosure ensure its caps a...

Страница 11: ...outputs loop power required optional 4 20mA powered output boards are available Serial Communication 1 RS 232 Modbus protocol 3 RS 485 Modbus protocol One RS 485 for remote display option Ethernet por...

Страница 12: ...ulfur compound is present in the sample stream The H2S reaction is visibly evident by a brown stain directly on the H2S sensing tape COOH CH PbS COO CH Pb S H O H 3 2 3 2 2 2 The electronics built int...

Страница 13: ...ly Pressure should be kept at a constant 15 psig The lowest pressure found to be tolerable for proper H2S measurement is 0 5 psig Flow must be kept at a constant flow of 2 cm between 100 200 cc min A...

Страница 14: ...r the H2S reading for that cycle From stage 2 to 4 the H2S value starts increasing as the millivolt value drops from exposure to H2S This stage is called RRA Analysis The RRA stands for Rapid Response...

Страница 15: ...ame time e g Sensor 1 0 20 ppm H2S Sensor 2 0 200 ppm H2S The analysis cycle process is the same per sensor as explained earlier in this section however some extra algorithms have been implementing to...

Страница 16: ...330SDS Ex H2S analyzer with a standard Sample conditioning system weights approximately 105 lb 48 kg Unpacking and transporting requires a minimum of two persons 3 Make sure the start up kit is compl...

Страница 17: ...l 7 Wire the power analog outputs and discrete outputs from the analyzer 8 Tube the Sample inlet sample sweep and sample vent lines from the analyzer 9 Ensure there is enough H2S Sensing tape 10 Insta...

Страница 18: ...rating shall be used e g 120 VAC rated solenoid the analyzer shall be powered with only 120 VAC and not 240 VAC The power consumption for a VDC analyzer is 3 Watts and for a VAC is 5 Watts For the to...

Страница 19: ...Envent Engineering Ltd Page 14 Revision 1 Earth Connections Entry Specifications Space Requirements Figure 3 Enclosure Entries Earth Connections...

Страница 20: ...Envent Engineering Ltd Page 15 Revision 1 Figure 4 Space Requirements Entry Specifications for Model 330S Ex No Backpan...

Страница 21: ...Envent Engineering Ltd Page 16 Revision 1 Figure 5 Space Requirements Entry Specifications for Model 330SDS Ex No Backpan...

Страница 22: ...Envent Engineering Ltd Page 17 Revision 1 Figure 6 Space Requirements for 330S Ex with Standard Backpan Size may vary...

Страница 23: ...Envent Engineering Ltd Page 18 Revision 1 Figure 7 Space Requirements for 330SDS Ex with Standard Backpan Size may vary...

Страница 24: ...Envent Engineering Ltd Page 19 Revision 1 Figure 8 Space Requirements for 330S Ex with Total Sulfur Option Backpan size may vary...

Страница 25: ...Envent Engineering Ltd Page 20 Revision 1 Figure 9 Space Requirements for 330SDS Ex with Total Sulfur Option Backpan size may vary...

Страница 26: ...d to reduce the pressure of the sample The lower pressure will improve the response time of the analyzer Refer to Figure 10 It is advisable that the probe not be installed on a vertical pipe Sample in...

Страница 27: ...ep The standard sample tubing material is 1 4 316 stainless steel however 1 8 0 3175 cm stainless steel tubing can be used if the response time is critical refer to Table 2 Tube Size Tube Gauge ID ID...

Страница 28: ...is section Please refer to the total sulfur and dilution manuals Analog Outputs The H2S controller board has two isolated loop power 4 20mA outputs which can be set up for different variable outputs L...

Страница 29: ...AO 4 20 mA Output Wiring Options Sample Chamber The sample chamber is the component that allows the H2S sample to come in contact to the H2S sensing tape which in turn is read by the sensor block The...

Страница 30: ...refer to Figure 12 The window keeps a clear view for the LED and the photodiode to work properly and isolates them from the sample gas The rubber gasket seals the Sample Chamber compartment preventin...

Страница 31: ...nvent Engineering Ltd to purchase an aperture strip Remember gain and span values on analog outputs will have to change based on new range application Please re calibrate analyzer Refer to H2S Gas Cal...

Страница 32: ...to create mold and fungus overtime Moreover the freezing point for water is 0 C and for 5 Acetic Acid is 2 C making it more reliable under freezing temperatures For the SDS models the humidifier has...

Страница 33: ...alyzer 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...

Страница 34: ...ocity and drying effect of the sweep gas The eductor vent can be retrofitted to existing analyzers In normal conditions the eductor makes a noise similar to a gas leak This noise is normal and it is d...

Страница 35: ...the display buttons and LED s are described in table Table 4 Table 5 Button Description Function Bypass Used to inhibit all analyzer alarms to a non alarm state and sets the analog 4 40 mA output to...

Страница 36: ...spare Fault Illuminates when there is a fault in the Analyzer Fault is used for Board temperature Sensor High Low Low H2S sensing tape sensor Pressure switch etc LED 1 to 4 Green LEDs that can be use...

Страница 37: ...s the Menu Set button until Mtr Run is displayed Press the right arrow the H2S sensing tape will advance for approximately 10 seconds 5 Press the Menu Set button until mV is displayed mV If the mV rea...

Страница 38: ...minutes confirm the analyzer reads below the H2S alarm set points Remove the analyzer from bypass mode by pressing the bypass button Verify the Bypass LED turns off Alarms are armed after removing th...

Страница 39: ...e 34 Revision 1 11 Confirm the analyzer reads below the H2S alarm set points 12 Remove the analyzer from bypass mode by pressing the bypass button Verify the Bypass LED turns off Alarms are armed afte...

Страница 40: ...s are tight Ensure that the flow meters humidifier tubing and sample chamber tubing are free of liquid or particulate contamination If the sample conditioning system is flooded with liquid refer to Sa...

Страница 41: ...fittings x2 MIP 4 Humidifier replacement plug 06349 40 Black 1 8 male female elbow LT 2 4 1 4 x 11 0 635 x 27 94 cm Tubing for sample chamber to humidifier LT 2 4 1 4 x 10 0 635 x 25 4 cm Tubing for f...

Страница 42: ...ced if it appears contaminated Disassembly of the pressure regulator and solenoids in the field is not advised Consult the factory if the regulator or solenoid appears contaminated 4 Re assemble Stain...

Страница 43: ...be 316 stainless steel 3 8 0 9525 cm or larger on a downward slope Possible heat trace required Analog input 2 jumper removed Re install jumper in Analog Input across 4 20 4 20 on the controller board...

Страница 44: ...analyzer Refer to H2S Gas Calibration on page 36 Contaminants or liquid carry over in sample conditioning system If contaminants or liquid has carried over the sample system refer to page 36 Higher t...

Страница 45: ...trations and re connect the tubing to the fittings on canister lid Contact Envent engineering Ltd for replacement if required Total Sulfur s Hydrogen flow was decreased at the flow meter Total Sulfur...

Страница 46: ...Leaking it needs to either be repaired or replaced Consult Envent Engineering Ltd Sensor sensor wire failure Re zero the sensor block Refer to Re zero Sensor Procedure on page 33 If procedure fails s...

Страница 47: ...ted in groove of sample chamber Overlapping Stains This is normal in the 1st 1 4 of a new H2S sensing tape It should not cause any reading problems If it is causing reading problems the stop threshold...

Страница 48: ...o do a motor run Display Press Menu Button until MTR Run Press right button This will activate the motor and move the H2S Sensing tape for a few seconds The alarm should clear Faulty Sensor Sensor nee...

Страница 49: ...ng Ltd to order a replacement Low H2S sensing Tape Sensor Part 330046A Fault LED Low Pressure Pressure of sample gas is lower than setpoint of pressure switch factory set to 10 psi descending Inspect...

Страница 50: ...age rating Make sure to use the appropriate voltage to power the analyzer DC controller boards can be powered with 12 24 VDC and AC controller boards can be powered with 110 to 240 VAC Keep in mind th...

Страница 51: ...that the analyzer is below or above like temperature setpoint those setpoint values Sample Conditioning System Issues Problems Possible Reasons Possible Solutions Liquid Carried over in SCS Sample to...

Страница 52: ...C if 5 acetic acid is used Do not expose analyzer to temperatures below 0 degress C or 2 degress C Humidifier leaking liquid The humidifier body cracked Could be due to extreme temperature changes A...

Страница 53: ...110 1 or 2 for SDS Aperture Strip Associated to measurement range 330130 1 4 liter Containers of Acetic Acid 330133XS 12 300 91 44 m Lead Acetate Tape H2S Sensing Tape 330406 1 Box of 10 Micro Filter...

Страница 54: ...Envent Engineering Ltd Page 49 Revision 1 Sealing Compound For sealing fittings in Hazardous Locations...

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Страница 66: ...Envent Engineering Ltd Page 61 Revision 1 Safety Data Sheet for H2S Sensing Tape...

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Страница 71: ...o Rev 1 1 on this user manual means that content changes will not affect or contradict ATEX IEC certification documentation thus the notified body does not need to be informed of the changes for insta...

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