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Pressurized enclosure system

1. Pressure threshold caused by passive mechanical outlet valve 0 5 10 15 20 25 Internal cabinet pressure P mbar hPa Figure 3 Range of operation Fixed curves by control devices with flow meas urement with plate orifice The input and output sided PID control loops allow the FS870S to perform in the whole range of operation see figure 2 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 8 2 3 3 Lowered cabinet stressing due to smaller pressure and pressure gradients During the purging phase a high flow rate should be achieved to shorten the purge time Based on their construction conventional Ex p systems show only a smooth rising of the flow rate while increasing the cabinet pressure FS870S 10 FS850S with plate orifice 18mm oO 3 Oo LL 5 14 mm 10 mm 0 0 5 10 15 20 25 Internal housing pressure P mbar hPa In this aspect the FS870S with its reduced flow restriction and back pressure is superior to any conventional Ex p system Within midrange flow rates the load to the Ex p cabinet walls is up to four times lower in comparison to conventional systems 2 4 Components of pressurized enclosure system F870S The pressurized enclosure system F870S contains at least the control unit FS870S and a solenoid valve Ea
2. O Atmosphere D mm E 5 ripe HE e N Air outlet i l l B Air inlet P I er i 34m Lo wc Em Eno j EE AER NN 120 58 5 Figure 8 106 33 Dimensions BT871 4 N D ir O Elekironie GmbH BT871 PER O d e DO e 2 S suey Heese A Ole we o O L JL Mt6x 1 5 5 10 BT871 5 150 BT851 i BT871 0 a a s Installation 9g height 20 mm LLY Template for ee Ss S panel mounting 7 0 i 60 3 130 All dimensions in mm 120 0 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 28 Figure 9 Dimensions SVP 3 5 Drill diameter 16 5 mm Maximum pressure SVP 5 3 5 bar SVP 3 6 bar 32 mm Figure 10 Dimensions SVD L x L I Adjustable choke for leakage compensation L 3m wire Drill diameter Maximum pressure 6 bar 56 mm 75mm e Figure 11 L 45 mm Dimensions BT855 Dimensions BT85x x n SN OO Oo E d E 1O SE E Kai eo C 4 5 mm Bereit EIN E E 7 5 mm keins N ees Bypass EIN AUS 16 mm Do not drill for BT8540 OQ Em OO DE EM mensen Template BT854 G nnheimer Elektronic GmbH Tel 49 6321 49919 0
3. 3 2 6 Ex works parameter Reset nn 18 SSC Maintenance eier dr atc pa Aone ia tutela coder totu ie 18 34 Repalsern elei ene EE 18 4 Operation irs ceret ttt vitate udine tudo uude ct tis Lee 19 4 1 Humana nterface 236 th nennen eden utinam el eis d 19 4 1 1 RENE 19 41 2 JOoystl ck iei REED Eod etd Reed i pi tedden 19 4 1 3 Log file Show LOG ne een eo deed abe etos 19 4 1 4 How to enter and leave the bypass mode sss emen eene 20 42 Parameter input and parameter query sssssssssssssssssese eene eene nennen emen nnne 21 4 2 1 Operation menlis Hotei dice ide ctim ater pdt dtes ed ec hati 21 4 2 2 Parameter Input menu 2a 21 4 2 3 Menu exposition ce 2 LE RU RI n e pete 22 4 3 X Alarm and malfunction indications eene ener nnne nnns 23 4 392 Alerts nS ee at es ten bacio fe n M ot orc unt bete 23 4 3 5 Eror messages nun einer oia bu tabe ooa ibat dos ttr t eec 23 NEN DI epe LEE 24 5 1 Technical Details isnan e Ehre toe e i e p uer d d dee tat ee 24 5 1 6 Rneumatie datas err eq ee D been eser ihnen 24 5 2 TYPO Codes iios ten ette cea ee ben ta ee ik ee m e e Chong cn 25 E WEN El A e tbe eost ee t estre cis rita eet cA en aint 26 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S Inhalt Page 3 5 4 Dimensions HH 3 nl rer Sil ek Lb LL 27 9 9 Mounting examiples eet eee er ee te er Deae tee eher ie 29 9 6 Flow diagram exei oe Perd be etna RE ARR HERR UI 29 54
4. G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 3 Mounting and connection Page 16 3 2 3 Intrinsically safe Ex i connection of FS870S Clamps Description Limits 1 2 Digital input Bypass UO IO PO CO LO DAN 6 2mA 8 3mW 100nF 0 5mH 3 4 Digital input On Off UO 10 PO CO LO DAN 6 2mA 8 3mW 100nF 0 5mH 5 6 Digital input External alarm UO 10 PO CO LO DAN 6 2mA 8 3mW 100nF 0 5mH 7 LED output System On UO IO PO CO LO 8 DAN 9 7mA 13mW 100nF 0 5mH 9 LED output System Ready UO IO PO CO LO 10 DAN 9 7mA 13mW 100nF 0 5mH 11 14 Port BT871 11 FS870S 1 BT871 12 2 13 3 14 4 15 18 External 15 FS870S 1 ext device Pressure temperature sensor ES872 Ext configuration module CM873 16 7 2 17 3 18 4 3 2 4 Connections FS870S of protection class Ex e Clamps Description 19 20 N Line voltage either neutral conductor at AC or minus pole at DC 21 22 L Line voltage either outer conductor at AC or plus pole at DC 23 upto 27 Potential earth PE 28 29 Working current circuit 1 Relays 1 Um 253V Im 5A cos o 0 7 30 31 Working current circuit 2 Relays 2 Um 253V Im 5A cos o 0 7 32 33 signal pressure alarm Alarm Um 253V Im 5A 34 35 Terminals for solenoid valve fuse inside device 36 Output solenoid valve 24V DC connect the valve here 37 38 PE 39 TX E
5. Menu code Code word to activate bypass function Bypass code Code word to switch on or off the ignition On Off code capable apparatus inside the Ex p cabinet IP Address Network IP Address 192 168 0 48 Subnet mask Description Structure English SVP3 Leakage compen sation Bypass is active 0001 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 3 Mounting and connection Page 18 3 2 6 Ex works parameter Reset O Do RESET 1 Press the joystick while powering up the device until D RESET appears on the display 2 Enter RESET Code 1111 3 Press the joystick The ex works parameter are now active Note only on the control unit not on the BT871 3 3 Maintenance Depending upon purity of the assigned purging air the inlet and outlet opening of the FS870S must regularly be examined on impurities e g oil dust etc or corrosion In case of serious impurities the operator should weigh the possibility of a punctual appropriate cleaning by G nnheimer Elektronic GmbH in relation to a spontaneous loss of the control ler 3 4 Repairs Repairs of the controller as well as the accessories may be made only by the G nnheimer Elektronic GmbH G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 4 Operation Page 19 4 Operation The user has total control of the pur
6. leck gleef telen eebe ege Dee anui etant 30 5 8 Transport Storing Disposal and Repnairs nenene renna 31 5 9 Sequence of operation dagram sss eene nennen nere 32 5 10 List f Paramelters 4 ed a Serge Seegen Geen ee ADR d ID HERES 33 The symbols WARNING CAUTION NOTE This symbol warns of a serious hazard Failure to observe this warning may result in death or the destruction of property Warning This symbol warns of a possible failure Failure to observe this caution may result in the total failure of the device or the system or plant to which it is connected Caution O Note This symbol highlights important information Safety Measures to read and to comply Warning hazardous locations with the exception of intrinsically safe circuits In special cases Warning Extreme Caution is advised when handling this device High electrical discharge is possible and can be fatal Work on electrical installations and apparatus in operation is generally forbidden in work can be done on non intrinsically safe circuits on the condition that during the duration of such work no explosive atmosphere exists Only explosion protected certified measuring instruments may be used to ensure that the apparatus is voltage free Grounding and short circuiting may only be car ried out if there is no explosion hazard at the grounding or short circuit connection Warning Do not open when
7. Fax 49 6321 49919 41 F870S 5 Annex Page 29 5 5 Mounting examples Figure 12 Mounting examples Ex p Geh use 5 6 Flow diagram FS8708 FS850S with plate orifice 18 mm Flow Vs a 14 mm 10 mm 0 5 10 15 20 25 Internal housing pressure P mbar hPa The diagram shows the relationship between pressure inside of enclosure and the output flow The diagram is only valid without reducing input or output diameters as well as flow reducing pipes G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 30 5 7 Block diagram KEE Il Je A EAS BT871 Ext Sen Figure 13 Electrical block diagram 12 3 4 55 16 57 8 9 10 11712137147 15 16417 18 ON ext OK Alarm LED Bypass FS870S ext Druck pressure Ventilsicherung Fuse solenoid valve Relayl Relay2 Alarm O O O O O O O O 1920 2122 23 24 25 26 27 Magnetventil Solenoid valve tr Ethernet Netz Mains Kontakte fur Spannungsfreischaltung Cut off contacts Active a FQC Figure 14 DLL Ober Pneumatical block dia i proportional gram mi solenoid inlet valve 9 s
8. Sp l z E h i Terminals at amp Msn X p housing FS870S Spark barrier Nozzle i 137 C ee 36 ANB EDU c i Flow rate control Pressure control Terminals Figure 15 codes CPC Bcc Mm at FS870S Pressure and flow i Je PID loop back r A controls in i i E FS870S de Spark barrier E s Active A d outlet valve D q prop 7 Control unit FS870S Ex p housing Nozzle Operation with prop valve Terminals at FS870S 37 36 A P Nozzle Bypass throttle Operation with digital valve 4 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 31 5 8 Transport Storing Disposal and Repairs Transport Vibration free in origin package do not drop handle carefully Storing Store the device dry inside of the origin package Disposal When the explosion proof multipurpose distribution switching and control units are eventually disposed of the national regulations governing the dis posal of waste materials in the country concerned must be rigorously ob served Repairs Defective parts may only be replaced by the Manufacturer or by personnel specially trained and supervised by the Manufacturer Only genuine spare parts from the Manufacturer may be fitted G nnheimer Elektronic GmbH Tel 49 632
9. age caused by e g ageing of the enclosure will be balanced and sudden failure is pre vented 3 Almost no flow noise and only a small protective gas consumption using a solid enclosure A1 A2 considered flow by integrating purging method Flow rate 4 A2 ignored flow dissipation A1 utilized flow flow rate by traditional purging method P supply pressure max on valve site Figure 4 Consumption of protective gas Another advantage using a proportional solenoid valve is that pressure control is also used during purging A set point pressure will be achieved in the enclosure while the flow vol ume that leaves the enclosure will be recorded and integrated over time until the required purge volume is achieved The advantages are 1 A defined pressure while purging pressure sensitive parts of the enclosure like mem brane switch panels or windows will not be overloaded 2 Purge volume accuracy is achieved by integration of the purge medium flow volume at the outlet Wasting purge medium is no more a topic of today The use of the F870S system leads to a considerable stress relief of the Ex p cabinet and sensitive parts like foil keyboards windows etc In comparison to conventional Ex p sys tems the FS870S requires a much lower cabinet pressure to achieve a comparable flow rate Example A reduction of the cabinet pressure by 5 mbar leads to 50 kg m de creased load at the cabinet walls G nnheimer Elekt
10. an explosive dust atmosphere is present Danger of static charge Clean only with humid cloth G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 1 Operation instruction for explosion protected device Page 4 1 Operation instruction for Explosion protected device Application and Standards This instruction manual applies to explosion protected devices of types below This apparatus is only to be used as defined and meets requirements of EN 60 079 particularly EN60 079 14 electrical apparatus for potentiality explosive atmospheres Use this manual in hazardous locations which are hazardous due to gases and vapors accord ing to the explosion group and temperature class as stipulated on the type label When installing and operating the explosion protected distribution and control panels you should observe the respective nationally valid regulations and requirements General Instructions Work on electrical installations and apparatus in operation is generally forbidden in hazardous locations with the exception of intrinsically safe circuits In special cases work can be done on non intrinsically safe circuits on the condition that during the duration of such work no explosive atmosphere exists Only explosion protected certified measuring instruments may be used to ensure that the appa ratus is voltage free Grounding and short circuiting may only be carried out if there is no ex plos
11. the bypass mode Utilize bypass only if it is sure that no explosive atmosphere is inside the cabinet Fire certificate required Caution The bypass mode is denied if it is possible that an explosive at mosphere can arise inside the Ex p housing Caution The bypass can be activated with the joystick and the menu in the display as follows 1 Press joystick 2 x times 2 Move joystick down one time Select Bypass 3 Enter bypass code with the joystick 0002 4 Change Bypass mode to active Bypass ON 5 Confirm the setting by pressing by pressing the joystick The bypass is active immediately O Leave the bypass mode in the same way as enter Note G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 4 Operation Page 21 4 2 Parameter input and parameter query The control unit has two types of menus e operation menu e Parameter input menu 4 2 1 Operation menu Within the operation menu the user gets more information ofthe Ex p system The menu is active by pressing the joystick The structure of the menu is a Actions e Contacts with this function the relays contacts could be shut off e Bypass with this function the bypass mode could be activated or deactivated e Menu Parameter input menu Start of the parameter input menu see below b Infos e Show log see log file e Clear log erase log file e Serial number see the serial number of the device e I
12. working while the menu is active That means the solenoid valves and the ignition capa ll ble device inside the cabinet are switched off Note Find more details of the input parameter in List of parameters in the end of this manual 4 2 3 Menu exposition superior menu item selected parameter parameter name next Parameter des ras parameter content value and unit Parameter query If the operator wants only to take a look on the parameters don t want to change them he should choose the parameter query instead of entering the parameter input menu To do this enter the parameter input menu using the code word 1000 The user steps through the menu as usual the parameter can not be changed for sure Master code word for parameter query 1000 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 4 Operation Page 23 4 3 Alarm and malfunction indications 4 3 4 Alert Alert Reason Procedure Ext Alert The external alarm occurred If the ext alert loop is not needed switch off the monitoring of the external loop in the parameter input menu 4 3 5 Error messages The error messages are shown on the display of the control unit and they are listed in the internal log file with time stamp Error BT871 not connected Cause The BT871 was not recognized Remedy Check the wires this is no direct error the FS870S works wi
13. 0 42 Bai Ethernet Netz Mains Kontakte f r Spannungsfreischaltung Cut off contacts Figure 6 electrical block diagram G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 3 Mounting and connection Page 15 3 2 1 Connection hints Conditions for the Ex e clamps Min and max clamping torque min 0 3 Nm max 0 4 Nm Min und Max wire cross section steep 0 2 2 5 mm flexible 0 2 2 5 mm Consider the following items while connecting und starting LINE VOLTAGE Extreme caution is advised when handling this de vice High electrical discharge is possible and can be fatal Please note the following Standard of Compliance BVS 10 ATEX E 112 and the regulative DIN EN 60079 14 Do not exceed terminal safety limits of each termi nal See limits in technical details or declarations of conformity The breaking current of the built in valve fuse must correspond to the used solenoid valve Warning 3 2 2 Switching power off ability The maximum current limits 5 A on the clamps 28 29 and 30 31 should not be exceeded at any time E G By an application of switched power supply a multiple higher cur Warning rent as the nominal max current may occur In this case a switching on current limitation e g NTC must be added to avoid the off limits high current If this is missed the risk of welded relay contacts and within the loss of the explosion protection exists
14. 1 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 32 5 9 Sequence of operation diagram Y P gt Pmax E el Alarm P lt PHIN P gt Pmin Y P gt Pmax P Pmin ext Alarm UU ni Q lt Qmin Q gt Qmin Y P gt Pmax P lt Pmin E ext Alarm PURGING d Purging volume is reached P lt Pmin Y P gt Pmax Y Q lt Qmin ext Alarm RERDS UN Failue status 1 All failure reasons also hardware failures 2 Only in operation mode continuous flow Figure 16 Flow chart operation diagram G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 33 5 10 List of Parameters System identification nstaiation no Dae er SEN Description Display Settings options Structure Language setting of FS870S German English French Language Do you use a proportional SVP or SVP SVD digital SVD working valve Valve Operation mode Leakage compensation Leakage compensation Operation mode Continuous flow Continuous flow Function of the free programmable alarm gt No function P lower P contac Outp ut function Alarm Bypass is active Contacts are active Cabinet Purged Fault Contact order Normally closed NC Normally closed NC NC NO Normally open NO Normally open NO The external alarm loop is programmable Inactive Pre purge During to work in special situation only Ext Alert
15. 70S I I 137 I 136 A P I 4 1 71 I I Nozzle I l Operation with prop valve Terminals at FS870S 1 37 1136 ES i Nozzle Bypass throttle Ex p housing Active 7 outlet valve F q prop Operation with digital valve P Control unit FS870S Figure 2 block diagram simultaneous pressure and flow control This concept permits simultaneous PID regulation of cabinet pressure and flow rate and generates new solutions and possibilities for pressurized enclosure systems and attach ments G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 7 2 3 2 Enlarged free programmable range of operation In comparison to common Ex p control systems the FS870S offers an increased and free programmable range of operation characteristic pressure flow curve The conventional systems are characterized by a fixed pressure flow curve see e g FS850S with an offset caused by the opening pressure of the passive mechanical outlet valve This typical opening pressure 2 4 mbar at standard systems is required to mini mize the system leakage rate during normal operation FS870S Comparison FS850S orifice plate 18mm Flow Del 14mm Seal 10mm oe
16. Control unit FS870S The control unit can be placed inside a hazardous area The location inside or outside the enclosure as well as the position is almost arbitrary The control unit has 4 holes on the rear plate for mounting although fixing only with the screw connection of intake or outlet is sufficient While mounting observe local safety guidelines and the regulative DIN EN 60079 14 Caution The reference input of the device M5 thread on the left side should be in the ex area If the device is mounted inside the Ex p housing the reference input must be connect to the ambient by a pipe connection Caution O The solenoid valve s and the control unit respec tively pressure monitor should be mounted on the l enclosure as far away from each other as possible Not E g space diagonal arrangement to achieve a total purging 3 1 4 Particle barrier The control device contains a particle barrier according to EN 60079 2 Therefore it is al lowed to exhaust the purge medium direct onto the ex area 3 1 5 Proportional solenoid valve The proportional working solenoid valve SVP should be mounted outside of the Ex p cabinet The mounting direction is arbitrary 3 1 6 Operator panels BT8xx x Operator panel BT871 0 The operating tableau BT871 0 without rear becomes directly mounted outside on the Ex p cabinet Therefore 5 drillings must be made into the cabinet Please refer the drilling scheme in the appendix O
17. THERNET 10 100Mbit Um 63V AC DC 40 TX 41 RX 42 RX 43 nb The claps 43 44 serve for the connection the not used ETHERNET wires 44 nb G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 3 Mounting and connection Page 17 3 2 5 Default parameter Parameter defaults ex works Settings Display Language setting of FS870S Language Do you use a proportional SVP or digital S VD working valve Valve Operation mode Leakage compensation Operation mode Continuous flow Function of the free programmable alarm contac Outp ut function Contact order Normally closed NC NC NO Normally open NO The external alarm loop is programmable to work in special situation only Ext Alert mode External sensor ES872 is connected to the system or not ES872 connected Parameter Purge volume 500 Purge volume Set point of pressure controller while pre gt purging phase Setpoint Pres Purge Monitored minimum flow while pre e purging phase Min Flow Purg e Set point of flow controller while pre purging phase Setpoint Flow Purge Set point of pressure controller while 20 normal operation after pre purging Setpo int Pres O per phase Monitored minimum pressure inside Ex p housing atall times Min Pressure Monitored maximum pressure inside Ex p 15 0 p housing at all times Max Pressure Code word main menu
18. The BT871 has three colored signal lights LED These report system states and warnings 2 5 6 Disconnector unit SR852 and power relay SR853 According to EN 60079 2 all non intrinsically safe connections of the ignition capable appa ratus must be disconnect if the protection gas pressure falls below the safety limit In many applications more than the two connector terminals on the control unit FS870S are needed In these cases the disconnector unit SR852 with 8 respectively 16 galvanically separated connectors is considerable helpful The power relay S853 provides 4 lines with switching power of 250V 16 A G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 12 2 6 Features in operation zone 21 Dust 2 6 1 Purging period gt cleaning period cleaning the housing inside In zone 21 the housing must not be purged in comparison to the operation in gas zone 1 The operator has to insert the purging volume zero 0 I into the parameter menu Purging in the presence of combustible dust would generate a dangerous explosive atmos phere inside the cabinet In the zone 21 the purging period is replaced by a cleaning period viz the operator has to remove thoroughly the combustible dust inside before he is energizing the electrical parts inside the cabinet After cleaning the pressure inside of the cabinet prevent an infiltration of dust 2 6 2 Additio
19. User s manual Pressurized enclosure system F870S 48 62Hz Sep LN xenon Caution High voltage Manual F870S v1 0 0 2011 doc G ee h D ER Dr Julius Leber Stra e a 67433 Neustadt Weinstra e onn ieimer Qualit ts Postfach 10 05 07 Elektronic GmbH Vs 67405 Neustadt phone 49 6321 49919 0 49 6321 49919 41 http www goennheimer de Email info goennheimer de fax F870S Inhalt Page 2 Content 1 Operation instruction for Explosion protected device nennen 4 2 Introduction Pressurized enclosure system POOS 5 2 1 Explosion protection pressurized encosure e 5 2 2 Pressurized enclosure according to EN GOU 0 eene meer 5 2 3 Pressurized enclosure system POOS 6 2 3 1 Simultaneous PID control of cabinet pressure and flow rate sssssssssssss 6 2 3 2 Enlarged free programmable range of operatton 7 2 3 3 Lowered cabinet stressing due to smaller pressure and pressure gradients 8 2 4 Components of pressurized enclosure system FROU 8 2 44 Leakage comiperisatloh Musa nl ed rs sed ne re 9 2 4 5 C ntinlous OW Aeee P 10 2 4 6 F870S Application using Containment Systems A 10 2 5 epuer eege nenn ka eenegen Seeche E 11 2 5 1 Ex4 external Sensory ES872 eni e err eem ESA AAAA NAROAN RETA EA AATA 11 2 5 2 Configuration module CMBF 3 nn 11 2 5 3 Operating panels sie ioe eI ete D EP SER SINCERE re EHRE Tee Ener 11 2 5 4 Common operating
20. ch can be mounted in or outside the enclosure Furthermore several re mote controls operation panels are available to improve ease of operation It is also pos sible to connect intrinsically safe sensors to the control unit FS870S The pressurized enclosure system F870S has two basic operation modes e Pressurization using leakage compensation e Pressurization using continuous flow of protective gas G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 9 2 4 4 Leakage compensation Within this operation mode the unit generate and hold a pressure level of at lest 0 8 mbar 80 Pa inside the Ex p cabinet The use of a proportional solenoid valve prevents wasting of the purge medium while the pre purging procedure as well later in basic operation mode In tradition to the control unit G NNHEIMER FS850S the first Ex p control unit using pro portionally working pressure and flow control the FS870S works as well as an input sided pressure regulator The proportional solenoid valve is the actuator of a PID control and regulates the incoming purge medium accordingly to the leakage of the cabinet The benefits of pressure feedback control are 1 Considerable less consumption of protective gas additional costs for proportional valve will be amortized soon 2 Increased service reliability achieved by constant pressure inside enclosure increasing leak
21. e classified as security related devices At that time the notified bodies PTB EXAM TUEV NORD etc declared that an ex p control device must fulfill the category 3 of EN 954 1 This concept was taken over also in the standards EN 60079 ff After the replacement of EN 954 1 by the standards IEC EN 61508 1 and 2 respectively EN ISO DIN 13849 1 and 2 and DIN EN 50495 a security level of at least SIL 2 is required for a pressurized enclosure control unit according to EN 60079 2 This is a valid arrange ment between the German notified bodies PFH ih P Kat B Kat 1 Kat 2 Kat 2 Kat 3 Kat 3 Kat 4 DC Dc DC DC DC BE er DC x avg avg avg avg kein kein niedrig mittel niedrig mittel hoch Figure 1 Performance levels The pressurized enclosure system F870S reaches performance level d according to EN 13849 and therefore it reaches SIL Level 2 according to IEC EN 61508 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 6 2 3 Pressurized enclosure system F870S 2 3 1 Simultaneous PID control of cabinet pressure and flow rate Based on the first introduction of proportional valve technology within pressurized enclosure systems patented system G nnheimer F850 an additional active proportional valve was integrated to the F870S in the outlet Flow rate control Pressure control Terminals bone Po DOM at FS8
22. ging system F870S by the use the joystick on the con trol unit FS870S respectively by using the external operating panel BT871 Operation on control unit FS870S panel BT871 is equal Using the other operating panels only a re stricted operation is possible 4 1 Human interface 4 1 1 Display The built in graphical display indicates operation modes actual data of pressure or flow rate as well as malfunctions Beside the status side the user can switch to the info side using the joysticks right move Status side Info side 1 P 2 0 mbar Purging Q 351 s T 20 C P 0 8 mbar Fl 4 I s foe v 162 mA Throttle 0 00 Description to Info side Row Description U 65V I 162 mA Voltage and current at input valve SVP Throttle 0 00 Opening rate of the output valve Positive values Throttle opens Negative values Throttle gets tighter 4 1 2 Joystick See process information to your Ex p system using the joystick inside of the FS870S Con firm settings by pressing this joystick 4 1 3 Logfile show Log The FS870S logs every important information of the Ex p system into an internal log file The logs get a time stamp With this information the user gets useful information if some thing works unexpected The log file is located in the operation menu G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 4 Operation Page 20 4 1 4 How to enter and leave
23. ion hazard at the grounding or short circuit connection To achieve an impeccable and safety device operation please take care for adept transporta tion storage and mounting as well as accurate service and maintenance Operation of this de vice should only be implemented by authorized persons and in strict accordance with local safety standards The electrical data on the type label and if applicable the special conditions of the test certifi cate BVS 10 ATEX E 112are to be observed For outdoor installation it is recommended to protect the explosion protected distribution and control panel against direct climatic influence e g with a protective roof The maximum ambient temperature is 40 C if not stipulated otherwise Terminal compartment in Increased Safety When closing it is to be ensured that the gaskets of the terminal compartment remain effective thus maintaining degree of protection IP 54 according to EN 60529 Close unused entries by impact proof stopping plugs which are secured against self loosening and turning Do not open the device in Ex area as long the device is energized Inside area with explosive dust do clean the inner of the housing of the dust before closing the housing Maintenance Work The gaskets of Ex e enclosures are to be checked for damages and replaced if required Ter minals especially in the Ex e chamber are to be tightened Possible changes in color point to increased temperature Cable g
24. lands stopping plugs and flanges are to be tested for tightness and secure fitting Intrinsically Safe Circuits Erection instructions in the testing certificates of intrinsically safe apparatus are to be observed The electrical safety values stipulated on the type label must not be exceeded in the intrinsically safe circuit When interconnecting intrinsically safe circuits it is to be tested whether a voltage and or current addition occurs The intrinsic safety of interconnected circuits is to be ensured EN 60079 14 section 12 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 5 2 2 1 2 2 Introduction Pressurized enclosure system F870S Explosion protection pressurized enclosure The use of pressurized enclosures allows the operation of non explosion protected devices in hazardous areas inside zone 1 and zone 2 The protection type pressurization is based on the principle of maintaining a constant pressure using air or a protective gas to prevent an explosive mixture forming near the device inside the pressurized enclosure Before start up the pressurized enclosure must be purged with air or protective gas to re move any explosive mixture that may be inside the enclosure Pressurized enclosure according to EN 60079 Since the second issue of the standard EN 50016 May 1996 control devices for the pro tection type pressurized enclosure ar
25. meter input menu b The solenoid valve is defect Replace the fuse check the wires a Change the solenoid valve or the settings in the parameter input menu b Replace the solenoid valve G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 24 5 Annex 5 1 Technical Details Control unit FS870S General Mounting Inside Hazardous Area Zone 1 21 Group 2 Il G D Ex protection Il 2 G Ex e d mb ib px IIC T4 Il 2 D Ex tD ibD pD A21 IP65 T 100 C Certificates ATEX BVS 10 ATEX E 112 IECEx IECEx BVS 10 0095 Safety standards SIL 2 acc to IEC 61508 Performance level d acc to DIN EN ISO 13849 Housing Dimensions H x W x D 220 mm x 120 mm x 90 mm Purging gas in and outlets G1 inside thread Protection class IP65 except purging gas in and outlet Material Aluminum coated RAL 7035 Electrical Power supply 24 V DC 110 230 V AC Specifications Potential free 250 VAC 5A cos 0 7 relay contacts U lt 30 VDC I lt 5A P lt 150 W Pneumatics Pressure range 0 18 mbar Optional 0 350 mbar Flow range 0 10 Itr sec 0 36 m h at cabinet pressure lt 10 mbar hPa Extended measurement ranges on demand Ambient temperature 10 C 60 C T4 Humidity 5 95 non condensing Configuration Parameter input Guided menus at graphic LC display Selectable language Single but
26. mode purge pre during purge After purge Pre after purge During after purge Always External sensor ES872 is connected to Yes No the system or not ES872 connected Parameter Purge volume Ltr Purge volume Set point of pressure controller while pre z mbar purging phase Setpoint Pres Purge aM Monitored minimum flow while pre Ltr s purging phase Min Flow Purg e EN Set point of flow controller while pre z Ltr s purging phase Setpoint Flow Purge Set point of pressure controller while mbar normal operation after pre purging Setpoint PresOper phase Monitored minimum pressure inside Ex p mbar housing at all times Min Pressure Monitored maximum pressure inside Ex mbar p housing at all times Max Pressure Codes Code word main menu Menu code Code word to activate bypass function Bypasscode Code word to switch on or off the ignition capable apparatus inside the Ex p On Off code cabinet IP Address ugs IP Address Subnet mask Subnet Mask Gateway Gateway G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41
27. nal marking The cabinet must contain a well viewable sign with the following content WARNING REMOVE ALL DUST FROM THE INSIDE OF THE ENCLOSURE BEFORE CONNECTING OR RESTORING THE ELECTRICAL SUPPLY On Ex p cabinets suitable for zone 21 which can be opened without tools has to be placed the following mark WARNING DO NOT OPEN WHILE ENERGIZED UNLESS IT IS OBVIOUS THAT NO COMBUSTIBLE DUST IS PRESENT 2 7 Additional information EC type certificate F850 SYST G nnheimer features as manufacturer of Ex p Systems a comprehensive ATEX Ex p SYSTEM Certification of a notified body Provides a economical solution for small quantities certified for Ex Zone 1 enhanced for Dust Ex Zone 21 category 2D the first ATEX certification of this type in Europe matches gt 80 of all individual customer systems e enhanced pressure ranges 27mbar 350mbar and 1 bar Costumer advantages usual delivery time usual quality usual costs no additional efforts 2 8 Conformity with standards The explosion proof control unit FS870S meets requirements of listed standards in the at tachment Declaration of conformity They were developed manufactured and tested in accordance with state of the art engineering practice and ISO9001 2008 G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 3 Mounting and connection Page 13 3 Installation and Connection 3 1 Mounting 3 1 3
28. nputs see actual status of the Ex i inputs c Exit menu 4 2 2 Parameter input menu Program the operation modes introduced above paragraph 2 within the setup menu of the FS870S Read in this paragraph how to navigate and find the structure data and parame ters Master code M Code ex work is 0001 Menu The menu is structured in 4 divisions e Structure e Parameter e Codes e Network Structure The structure of the Ex p system consists of Language menu language of the FS870S Valve type use of proportional valve or digital valve Operation operation mode Leakage compensation or continuous flow Output function function of the free programmable relay output NC NO Contact order Normally closed NC or Normally open NO Ext Alert mode The external alarm loop is working in special situations only ES872 connection of an external sensor to the FS870S Parameter Parameter list e Purge volume e Set point pressure Purge G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 4 Operation Page 22 Min FlowPurge Set point Flow Purge Set point pressure operation Min Flow operation Set point Flow operation Min Pressure Max Pressure Alarm Pressure Codes This sub menu contains the 3 code words e Menu Code to enter he parameter input menu e Bypass Code to protect the bypass function e E A Code to switch the relay contacts off on O The FS850S does not
29. ntainment Systems are defined as parts of a device within a pressurized enclosure which could emit combustible gas or occasionally an explosive environment zone 1 ex plosive mixture from within the enclosure In order to receive an Ex p System including a Containment System which is failsafe ac cording EN 60079 2 with the attribute no emission the following conditions must be met 1 The flammable substance inside the containment system is in the gas or vapor phase when operating between the specified temperature limits 2 The minimum pressure specified for pressurized enclosure is at least 50 Pa higher than the maximum pressure specified for the containment system 3 An automatic safety device initiates if the pressure difference falls below 50 Pa This automatic safety device can be activated by a difference pressure switch looped into the external alarm loop terminal 5 6 on FS870S If an alarm occurs on this loop the con trol device FS870S will turn off the ignition capable device immediately After alarm cancel ing the control device FS870S starts operation automatically with the purging procedure The external alarm loop is made by a normaly closed connection method G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 11 2 5 Peripherals 2 5 1 Ex i external sensory ES872 The intrinsically safe bus interface is used to transmi
30. on module M Configuration module G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 26 Operator panel Intelligent Operator panel Panel mounting type Type with separate IP65 housing Operator panel Operator panel for panel mounting Without key operated switch With key operated switch Bypass B Operator panel in separate IP65 housing Without key operated switch With key operated switch Bypass Ex solenoid valve fuse 5 3 Marking Marking of FS870S Ex Il 2 G Ex e d mb ib px IIC T4 II2D ExtD ibD pD A21 IP 65 T100 C Marking of BT871 I2 G Ex ib IIC T4 Il 2 D_Ex ibD T135 C of ES872 I2 G Ex ib IIC T4 II2D ExibD T135 C CR D z 2 KQ Marking of CM873 I 2G ExibIIC T4 II2D ExibD T135 C G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 27 5 4 Dimensions 90 mm Figure 7 dan jo m Dimensions FS870S 32 i amm 10 mm O O Eu
31. panels BT 854 1 and BT 855 1 11 2 5 5 Intelligent operating panel type BIO 11 2 5 6 Disconnector unit SR852 and power relay SR853 sssssssssesseeeeee ene 11 2 6 Features in operation zone 21 Duett 12 2 6 1 Purging period gt cleaning period cleaning the housing inside een 12 2 6 2 Additional markimg eene eren nne n nene rrnrn nnn nn enne TEA rnis 12 2 7 Additional information EC type certificate F850 SYST ssssssseeeeeeen 12 2 8 Conformity with standards ioi kn TENERE ANAA ANE EEEN RNEER AONAR ARRA ERA 12 3 Installation and Connection ener n enn n nn nenemrnn nr nnne n en nnern nnn nnn 13 Sato Mo ntlng soia eem eite eee ide etd iit ade ise Ed tels 13 3 1 3 Control unit FS870S 4 ecran te e tede en 13 3 1 4 Particle DalTIer io enr ueteres er Re aka 13 3 1 5 Proportional solenoid vahye eene ener eren nennen 13 3 1 6 Operator pariels BTGO 06X eebe d er u e Eee beer e Peeve ace dead 13 3 1 7 Disconnector unit SR852 and power relay GRO 14 3 2 Connecting and Commissioning ssssesseeeneeeneeeenen nennen menn nnn en ennrnn rn 14 3 2 1 Connection NINS aserre o erede Eee dete Lee 15 3 2 2 Switching power off ability ssssssssssseeeneeneene nennen nennen ens 15 3 2 3 Intrinsically safe Ex i connection of FS870S sssssssssee eee eme 16 3 24 Connections FS870S of protection class Exei nenn 16 3 2 5 Default Parameter cetero bei en reine ea 17
32. perator panel BT871 5 The operator panel BT871 5 contents a complete housing in protection class IP65 It could be mounted arbitrary in hazardous area Zone 1 Please refer the dimension scheme in the appendix for the position and diameter of drillings Operator panel BT854 x The BT854 0 consists of 2 signal lamps and an On Off switch which are directly attached to the Ex p cabinet For the BT 854 1 a key switch to active bypass mode is added Please refer the dimension scheme in the appendix for the position and diameter of drillings Operator panel BT855 x G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 3 Mounting and connection Page 14 The operating tableau BT855 x has got a complete housing protection class IP65 It can be mounted in the ex area of Zone 1 at any place Please refer the dimension scheme in the appendix for the position and diameter of drillings 3 1 7 Disconnector unit SR852 and power relay SR853 The disconnector unit SR852 and power relay SR853 could be placed in hazardous area Zone 1 These are certified on its own in protection type Ex e 3 2 Connecting and Commissioning 7 E BT871 Ext Sen IT 10 11 12 13 14 15 16 17 18 O O O O O O O O ext Druck Alarm LED pressure Ventilsicherung Fuse solenoid valve bas FS870S aH Magnetventil Solenoid valve Relay1 Relay2 Alarm RX 041 RX
33. ronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 2 Pressurized enclosure system F870S Page 10 2 4 5 Continuous flow The control unit FS 850S incorporates the operation mode continuous flow This operation mode is necessary for example if an analyzer produces an explosive atmosphere inside the enclosure containment system The operation mode continuous flow flushes the en closure permanently After the pre purging procedure purging process a set point flow rate is adjusted during normal operation A flow rate minimum will be monitored also This system design allows a simultaneous PID control of cabinet pressure and flow rate and opens new possibilities within the construction of pressurized enclosure systems and applications In operation mode continuous flow the FS870S is capable to lower the flow rate from a high value during purging to a low value during normal operation at a constant low cabinet pressure level Example 3 liters sec to 0 3 liters sec decrease without pressure variation A Internal cabinet pressure High purge pressure at conventional systems If required a higher purge pressure _7 can be programmed to shorten the purge time Aes T ENNER NR pressure level normal operation FS870S Start Tine Pre purging phase Normal operation phase Figure 5 time diagram 2 4 6 F870S Application using Containment Systems Co
34. t measurement values from the exter nal proportional sensor module ES872 to the control unit This allows the integration of ad ditional safety control features into the purge control system This interface is also suitable for e g temperature or other sensors 2 5 2 Configuration module CM873 Using the same Ex i bus the customer can connect the optional configuration module CMB873 to load application specific configuration data and parameters into the control unit without further manual programming The handling is quite simple plug this CM873 into the intended port and restart the control device 2 5 3 Operating panels For the control unit FS870S several operating and visualizing panels are available These panels consist of the explosion protection class intrinsically safe and are considerably ad vantageous particularly when the control unit is mounted inside the enclosure 2 5 4 Common operating panels BT 854 1 and BT 855 1 e On Off Switch e Key operated switch for bypass e LED indicator for READY and ON The connection to the control unit consists of 6 wires 2 5 5 Intelligent operating panel type BT871 This operation panel indicates operation and malfunction reports as plain text The 5 mem brane switches offer total command of the control unit Status actual pressure flow rate as well as remaining purge time are always available The connection to the control unit consists of only 4 wires Signal lamps on BT871
35. thout BT871 or refit a BT871 Valve missing Configuration error There is no solenoid valve con nected to the control unit A READ error with the internal EEPROM or the CM872 has oc curred the system data is cor rupted Connect a solenoid valve to the appropriate claps Switch the unit off and on if the error remains send the unit back for maintenance Stepper motor failure Internal error on the output valve Send the unit back for maintenance Stepper motor wire break Internal error on the output valve Send the unit back for maintenance Stepper motor over current Internal error on the output valve Send the unit back for maintenance Stepper motor over tempera ture Internal error on the output valve Send the unit back for maintenance Stepper motor under voltage Internal error on the output valve Send the unit back for maintenance Sensor error The pressure und flow sensors work not correct and send cor rupted data Send the unit back for maintenance Memory error RAM ROM error occurred Switch the unit off and on if the error remains send the unit back for maintenance Task error Program task error Switch the unit off and on if the error remains send the unit back for maintenance Valve Fuse blown Valve over current The valve fuse is blown or a wire is broken a the connected valve do not match to the programmed valve in the para
36. ton programming and operation Visualization Simultaneous clear text indication of multiple system information and measurement values Shut off delay Programmable 0 10 sec default 2 sec System diagnosis Integrated log file memory Ethernet Option Ethernet interface and web server for remote system monitoring See EC type certificate for more information 5 1 6 Pneumatic data Tolerance 5 of value Maximum pressure P max adjustable 0 0 mbar 20 mbar Minimum pressure P min operation adjustable 0 8 mbar 20 mbar Alert pressure P alert adjustable 0 0 mbar 20 mbar Minimum flow adjustable 0 1 l s 10 I s G nnheimer Elektronic GmbH Tel 49 6321 49919 0 Fax 49 6321 49919 41 F870S 5 Annex Page 25 5 2 Type codes Control unit Nominal width Standard 22 2 2 er Meca Dx electa Edd ainsi 0 ME x Ethernet Interface Not installed EE D Ethernet Interface 1 Hardware Software version Standard EE 0 ie RR M X Solenoid valve Effective diameter PE 2 3 if SVP up to 300 Itr Ex p cabinet nen 3 5 if SVP more than 300 Itr Ex p cabinet 5 n mm if SVD size of installed nozzle n External Pressure sensor External Pressure sensor Configurati

Pressurized enclosure system

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