- Aplisens SA
Contents
1. SZ 3dAL AlddNS H3MOd 31V3d3H 82 Z0 t18 ZZO 20 8 19 dsuasijde ww 14110918 2 14 gt N3SI ld SuvMze co 5975 n Before sliding off a part of housing press the snaps located on the sideway surfaces Fuse LEEK tol ico TTL TCL aa rm Em Kho lt 30 1 repeater power supply assembled in a strip enclosure Fig 5 ZS2. 4 7 PLACE FOR REPEATER POWER SUPPLY 5 5 8 ASSEMBLY AND CONNECTIONS eee nine etnies ne enne nene enne 5 9 SETTING AND ADJUSTMENT eene eem enne nee nennen eee enne enne 6 10 INSPECTIONS REPAIRS AND SPARE 6 11 PACKING STORAGE AND TRANSPORT sese I eene eene 7 12 GUARANTEE o ee io oa Gs Gifted e iot ais ip eei es 7 13 ADDITIONAL INFORMATION iiti eo MERE 7 paille 7 A 2 10 ZS 30 31Ex 02 ENG 1 INTRODUCTION This manual is a document for the users of ZS 30Ex1 and ZS 31Ex1 repeater power supply including basic technical data and instructions necessary to become familiar with their operation principle and the ways of operating This manual includes also necessary instructions concerning the installation and operation as well as the proceeding in case of failures This manual regards the repeater power supply in anti explosive intrinsically safe version 2 LIST OF USER SET Power supplies are delivered in single and or multiple packs Every supply is delivered together with a Product Certificate which also is a guarantee card A batch of transmitters is supplied together with the User s Manual IO ZS 30 31Ex 02 ENG On a customer s request a Decla
3. polyurethane resin b Input system The input system can provide the voltage with on of the five nominal values from 15V to 25V in order to supply the transducer installed in explosion hazard zone through a two wire line The 4 20mA signal which is forced on the line by the transducer is introduced to the amplifier of separator input system and then it is sent through an optoisolator to the output circuit The input circuit is equipped with a protective system limiting the short circuit current and input voltage to the hazard zone This system consists of a serial current limiter containing durable resistors and 3 Zener diodes connected in parallel for voltage limiting Nominal voltage can be 15V 18V 20V 22V and 25V The elements of this system are encapsulated with epoxide or epoxide polyuethane resin they are placed in enclosure made of insulating material and they form a kind of barrier designated as c Output circuit The output circuit converts the signal from the input circuit into one of a standard output signals From the output circuit side the repeater power supply can cooperate with devices supplied by network transformers from the network with nominal voltage of 230V 50Hz The output circuit is protected with TVS or Zener diodes and PTC thermistor 6 2 Construction The electronic system of ZS 30Ex1 is mounted on the boards placed in a strip enclosure fig 5 and in case of ZS 31Ex1 in the enclosure sh
4. signals characteristics error can indicate that the converting system is damaged A 7 10 ZS 30 31Ex 02 ENG case when any abnormalities in device functioning are detected The assessment of damage and repairs can be conducted only by the manufacturer or entity authorized by the manufacturer It is prohibited doing any repairs or interfere into the electronic system of the supplier 10 4 Data for circuit status checking Table 1 1 Supply voltage to the hazard zone Te yalues at output current 44 7 45 75V 17 6 18 4V 19 5 21V 21 5 23 1V 24 5 25 5V Input circuit shorting current lt P gt 3 and P gt terminals 24 28 mA for ZS 30Ex1 and ZS 31Ex1 Values of short circuit current given in line 3 of the Table 1 regard the situation when the internal current limiter works properly Limit values of current resulting from intrinsical safety conditions are specified in 5 1 11 PACKING STORAGE AND TRANSPORT 11 1 Repeater power supply should be packed in unit or collective packages in a way protecting them against damages during transport 11 2 Repeater power supply should be stored in unit or collective packages in rooms free from vapours and aggressive substances at the air temperature from 5 C to 40 C and relative humidity not exceeding 8596 11 3 The devices should be transported in collective or unit packages protected against displacement during the transport Land sea or a
5. with a transmitter with signal 4 20 mA Uwe V x 0 75 Parameters Intrinsic safety ZS 30Ex Terminals P P 25 31 lo 100 mA Characteristic of linear circuit Option 1 25V Uo 25 5V Po 0 63W Lo 2 2 mH Co 0 09 uF Option 2 22V Uo 23 1V Po 0 56W Lo 2 2 mH Co 0 13 uF Option 3 20V Uo 7 21 0V Po 0 5W Lo 2 2 mH Co 0 175 uF Option 4 18V Uo 18 4V Po 0 41 Lo 2 2 mH Co 0 27 uF Option 5 15V Uo 15 75V Po 0 4W Lo 2 2 mH Co 0 45uF Sign Lo Co Inductance and capacity of input circuit Li Ci Inductance and internal capacity of load in outputs circuit without cable Lc Cc Inductance and capacity of cable Note The above load parameters apply where 1 The external circuit contains no combined lumped inductance Li and lumped capacitance Ci greater than 1 of the above values or 2 The dinuctance and capacitance are distributed as in a cable or 3 The external circuit contains either only lumped inductance or lumped capacitance in combination with a cable In all other situations up to 50 of each of the L and C values is allowed but no more than Co 1 uF for gas groups IIA IIB and 600 nF for group IIC A 4 10 ZS 30 31Ex 02 ENG 6 PRINCIPLE OF OPERATION CONSTRUCTION 6 1 Electronic system The electronic system of ZS 30Ex1 and ZS 31Ex1 repeater power supply consists of 3 following circuits separated from each other block diagram of the electron
6. CIPLISEN gt IO ZS 30 3 Ex 02 ENG APLISENS MANUFACTURE OF PRESSURE TRANSMITTERS AND CONTROL INSTRUMENTS USER S MANUAL REPEATER POWER SUPPLY POWER SUPPLY ISOLATOR ZS 30Ex1 with 24V DC supply ZS 31Ex1 with 230V AC supply Ex version Edition A WARSAW OCTOBER 2012 APLISENS S A 03 192 Warszawa ul Morelowa 7 tel 48 22 814 07 77 fax 48 22 814 07 78 www aplisens pl e mail aplisens aplisens pl A 1 10 ZS 30 31Ex 02 ENG Applied symbols EN Warning that the instructions included in the documentation must be strictly observed in order to ensure the safety and full functionality of the device P Information Information particularly useful for installation and operation of equipment useful for installation Information particularly useful for installation and operation of equipment operation of equipment Information particularly useful for installation and operation of Ex equipment Information regarding the proceeding with used up equipment BASIC REQUIREMENTS AND OPERATIONAL SAFETY The manufacturer does not bear responsibility for any damages resulting from improper installation not maintaining a proper technical condition and using for the purposes inconsistent with intended use of the device Installation should be conducted by a qualified personnel having the authorizations required for the installation of electrical intrinsically safe equipment Personnel performing the ins
7. cables 8 3 The cooperating devices located in the safe zone and supplied with maximal voltage of 250 VAC through a network transformer can be connected to 04 and lt 0 gt terminals of 25 30 1 and ZS 31Ex1 output circuits 8 4 In case when ZS 30Ex1 and ZS 31Ex1 devices are mounted on strips both in cabinets and wall enclosures a distance of minimum 50 mm between the terminals of intrinsically safe and non intrinsically safe circuits must be kept If such a distance is not kept then an insulating or metal grounded barrier should be applied An additional fixing of installation conductors in the vicinity of terminals is recommended 8 5 Adjacent installations and devices should be mounted in a way not violating the conditions of separation between intrinsically safe and non intrinsically safe circuits appropriate distances barriers additional cable fixings insulation status etc The inscriptions informing about the contents and place when the cables are led out should be placed on cabinets and enclosures 8 6 In case of ZS 30Ex1 if the influence of electric surges is expected from the side of 24V supply e g in case of big distance from 24 V power supply to the separator then it is recommended to equip the 24V supply line with overvoltage protection p p ED 25 19 8 7 From 230 V power supply side the cabling of ZS 31Ex1 device must be in accordance with applicable standards regarding the safety and elect
8. ia Ga KDB 05 5 5 I MD ExiaMa l 77 M 1 G Ex ia Ga Zero KDB 05 082 li Repeater power supply 1P20 75 31 1 span Serial number zero Fig 2 Distances of ZS 30Ex1 ZS 31Ex1 repeater power supplies installation in cabinet Intrinsically safe transmitter Explosion hazard Safe zone zone Output signals acc to point 5 2 Marked with blue colour 0 lt V gt V 24V DC for ZS 30Ex1 lt L 230V AC for ZS 31Ex1 Fig 3 Block diagram of ZS 30Ex1 and ZS 31Ex1 repeater power supply 10 ZS 30 31Ex 02 ENG a Input 4 20mA L1 EJ LI UJ E S N 5 a EE EEE Supply 230V AC Z80X31VS0 80 oles o b 5 1 ew LW 1 oquinu eios inding ddns 0 Id suesij de ww 8410 v18 220 8 LL 10918 ZZO 80 il ESE 43 NISMA MWZSUVM 261 80 8 Fig 4 25 31 1 repeater power supply in a strip enclosure Holder for TS 35 and TS 32 strips wig Tea e z od Ajddns 1omod sayvaday TROXHLIVSO oni Hi imd 3 2 SNaSTId oooooQ zis S 22090909 10 ZS 30 31Ex 02 ENG 10 3 cm LLL E A SSS LNNOW LX30
9. ic system is shown on fig 3 a Supply circuit ZS 30Ex1 the main functional units of the supply circuit include a protective system stabilizer and converter This circuit is supplied with the nominal voltage 24V DC and it provides galvanically separated voltages for supply of input and output circuits Supply circuit is protected against the exceeding of permissible voltage 24V 10 and polarity changes by protective circuit This system consists of 3 tyristors connected in parallel which are initiated from two points power supply input and output of the stabilizer supplying the converter when the values of allowed voltage are exceeded Moreover the system is equipped with a fuse which disconnects the supply system ZS 31Ex1 the supply circuit is adapted to network supply 230V 50Hz Two network transformers are applied which supply separately the part of repeater power supply system including the input to the hazard zone and the circuit of output signals to the safe zone The system of input to the hazard zone and the output system are supplied by specially designed and manufactured transformers The coil forms are equipped with appropriately selected insulating barriers The transformers are resistant to shorting in secondary circuit and they are equipped with thermic fuses 100 C protecting against excessive heating in case of intra coil shorting Transformers and the thermic fuses are encapsulated with hardenable epoxide or epoxide
10. idth of the range There are 2 openings on the enclosure front panel allowing to access the potentiometers knobs marked as zero and range The corrections of zero range settings can be make e g as it is shown on fig 1 10 INSPECTIONS REPAIRS AND SPARE PARTS 10 1 Periodic inspections 10 1 1 During normal operation ZS 30Ex1 and ZS 31Ex1 repeater power supply do not require any maintenance operations and the inspections should be conducted periodically in accordance with the requirements specified in control standards applicable for users of anti explosive equipment 5 External condition of device should be checked during an inspection The following should be checked if there are no traces of mechanical damages the fixings of cable connections and terminals have not been loosen rating and other plates are not damaged and legible 10 1 2 Check the value of short circuit current of input circuit connecting a milliammeter to lt gt lt P gt terminals and reading the indication The value of short circuit current should not exceed the values given in table 1 Checking and correction of characteristics settings should be conducted e g as it is shown on fig 1 Check the value of voltage supplying the converter in hazard zone connecting the voltmeter to lt P gt and lt P gt terminals The indications should be in accordance with the values given in Table 1 10 2 Non periodical inspections Non periodical inspec
11. ir means of transport can be used provided that they ensure the elimination of direct influence of atmospheric factors 12 GUARANTEE The manufacturer guarantees a correct functioning of ZS 30Ex1 and ZS 31Ex1 repeater power supply for a period of 12 months from purchase date as well as a guarantee and post guarantee service 13 ADDITIONAL INFORMATION 13 1 The manufacturer reserves the right to make constructional and technological changes provided that they do not violate the conditions of intrinsical safety certificate and not impair the quality of repeater power supply 13 2 Related documents Certificate KDB O5ATEX082 Supplement n 1 2 3 13 3 Reference standards EN 60079 0 2009 EN 60079 11 2012 EN 60529 as per fig of VC2 0 5mA Ue SES 0 20mA 0 10V 4 20mA M ZS 30Ex1 2 10V Input ZS 31Ex1 circuit RW1 14 FIGURES RD125900 max Supply 24V DC for ZS 30Ex1 V V Supply 230V AC for ZS 31Ex1 L N RD1 Decade resistors RW1 RW2 Standard resistors 100 VC1 VC2 Digital voltmeters PS System simulating the transducers or settle resistor Fig 1 Example of measuring system for assignment of ZS 30Ex1 and ZS 31Ex1 repeater power supply characteristics min 50 i E 8 10 ZS 30 31Ex 02 ENG min 5 OUTPUT 4 20mA PLISENS Ex ia Ma I x 2 Hl 1 G Ex
12. oop with cooperating intrinsically safe transducer coming from lt P gt and lt P gt terminals marked with a blue plate to the explosion hazard zone Input circuit parameters Input signal from the transmitter 4 20mA 5 2 Output signals and output load resistances 4 20mA 0 20mA Ro lt 0 5000 0 5mA Ro x 2kQ 0 5V 1 5V 0 10V 2 10V Ro gt 10kQ 5 3 Metrological parameters Accuracy lt 0 1 Non linearity lt 0 05 Effect of load resistance fluctuations lt 0 05 Effect of temperature fluctuations lt 0 01 C Time constant ok 0 05 s by arrangement 0 1 1s 5 4 Separation of circuits Power supply Separation of circuits all the circuits are galvanically separated from each other Test voltage between circuits 1 5kV 50Hz or equivalent DC as per EN 61010 1 Power supply of ZS 30Ex1 nominal voltage 24V DC allowed 24V 10 DC ripple lt 1 current 100mA Power supply of ZS 31Ex1 network voltage 230V 50Hz 10 5 5 Ambient temperature 5 C 55 C special version 25 C 55 C 5 6 Ingress protection rating according to EN 60529 2003 For ZS 30Ex1 ZS 31Ex1 IP20 and see p 7 2 5 7 Principles of the explosion proof safety The principles of the explosion proof safety were realized through use of standards EN60079 0 2009 EN60079 11 2012 Input circuit supply voltage with one of 15V 18V 20V 22 25V the nominal values Input voltage after loading
13. own on fig 4 A rating plate as well as information plates are placed on each enclosure On the front panel there is a LED signaling that supply voltage is connected and inside of 2 openings there are the knobs for zero and range corrections The knobs are accessible from outside The enclosures are adapted to be installed on T 35 or 32 strips The terminals for connection of intrinsically safe input circuit are marked with a blue plate A 5 10 ZS 30 31Ex 02 ENG 7 PLACE FOR REPEATER POWER SUPPLY INSTALLATION 7 1 ZS 30Ex1 and ZS 31Ex1 repeater power supply in strip enclosures must be installed in explosive safe dry free from dusts and aggressive gases places and they should be protected from mechanical hazards They are designed for installation on strips 35 32 and they require the cabinets or enclosures with locks preventing the access of unauthorized persons 7 2 If the place of installation does not meet the environment conditions specified in point 7 1 then the enclosure or installation cabinet must have the protection class of at least IP54 or higher depending on specific conditions Similarly it is recommended to use additional enclosures or cabinets with increased protection class in case when it is predicted that the devices will operate at minus ambient temperatures 98 7 3 In case when wall enclosures are used then the enclosure containing one several isolators installed on 35 or 32 stri
14. p has the same status as installation cabinet i e it is a place of intrinsically safe devices installation repeater power supply in this case 8 ASSEMBLY AND CONNECTIONS 8 1 25 30 1 and ZS 31Ex1 repeater power supply should be installed in vertical position in accordance with front panel position ventilating openings should be at the top and the bottom of power supplies There should be a free space left over under and between the power supplies allowing them to be cooled by circulating air see fig 2 8 2 ZS 30Ex1 and 25 31 1 repeater power supply should be connected in accordance with fig 3 Only the circuits of intrinsically safe devices e g converters of ia and ib categories not having internal sources of power supply can be connected to lt P gt and input terminals which are marked with a blue plate Supply and measuring line to the hazard zone input circuit is made of A or B conductor in accordance with EN 50039 see point 8 5 Maximal values of circuit inductance and capacity which are specified in the certificate see point 5 1 cannot be exceeded It is recommended to lead the signal lines with twisted pair cable and in case of big electromagnetic interferences the twisted pair cables should be shielded additionally It should be avoided putting the signal cables along to other interfering cables e g in the vicinity of big energy receivers or along with feeding and inductive load
15. ration of Compliance and or appropriate certificate will be supplied Two last documents can be found at www aplisens pl 3 APPLICATION OF ZS 30Ex1 AND ZS 31Ex1 REPEATER POWER SUPPLY 3 1 ZS 30Ex1 and ZS 31Ex1 repeater power supply are the accompanying devices intended for the cooperation with two wire transducers installed in explosion hazard zones supplied from one of above mentioned supplier and forming 4 20 mA transmission signal on the line They supply the measuring circuit of transducers called the input circuit with the voltage of nominal value from 15 to 25V they receive the transmission signal 4 20 mA from transducers and they convert it into one of unified output signals Input output and supply circuits are galvanically separated It ensures a galvanic separation of the transducer installed on the object in explosion hazard zone from devices operating in the safe zone such as controllers indicators data collecting systems etc The application of isolator reduces the influence of interferences on operation of these devices and facilitates the configuration of measuring systems 3 2 ZS 30Ex1 and ZS 31Ex1 repeater power supply are mounted in strip enclosures ZS 30Ex1 is supplied by 24V DC and ZS 31Ex1 is supplied by 230V 50Hz The supplies should be installed in closed cabinets or enclosures in dry environments free from dusts and aggressive gases Repeater power supply are intended for installation exclusivel
16. romagnetic compatibility as well as with local rules and regulations In case of interferences from 230V supply it is recommended to apply anti interference filters The cables connected to the filter output cannot be placed nearest to the interfered cables e g relays or contactors controlling circuits 8 8 Basic requirements specified in EN 50039 standard for A and B type cables applied in supply and measuring circuits in hazard zone A 6 10 ZS 30 31Ex 02 ENG 8 8 1 Insulation thickness of the cables should be adapted to the material type but not smaller than 0 2mm Strength of cable insulation 2UN but not less than 500V per conductor 500V AC between cable shield and connected strands 1000VAC between two group of strands each containing half of connected strands 8 8 2 No non intrinsically safe circuit can be run in a multi strands cable The strands from circuits in maximal voltage exceeding 60 V should not be run in the one cable 8 8 3 Cables should be protected against damages by placing them for example in cable trays protective tubes cable racks or by application of solid fixings etc 9 SETTING AND ADJUSTMENT The following parameters of ZS 30Ex1 and ZS 31Ex1 repeater power supply are factory setting according to customer s requirements supply voltage of input circuit time constant and one of output signals specified in technical data The user can only make correction of the beginning and w
17. tallation is obliged to conduct it in accordance with this manual and with the regulations and standards regarding the intrinsical safety and electromagnetic compatibility applicable for the type of conducted installation In case when the device is out of order it should be disconnected and returned to the manufacturer or an entity authorized by it for repair In order to minimize the possibility of failures and hazards resulting for the personnel the devices should be installed and used in environments safe in explosion respect dry and free from dusts and aggressive gases protect from mechanical strokes excessive shocks and vibrations protect from excessive temperature variations ZS 30Ex1 and ZS 31Ex1 repeater power supply should be installed only in safe zones The lines to the hazardous zone should be made with particular care observing the standards and regulations regarding such installations and observing the conditions of using gt Table of contents T INTRODUCTION cineca D ER QE EE RED SU Clos CEP Ma ROR 2 2 LIST OF USER SET icones cote oin QU det cor etn On en Ee tf Gaeta ee elvan Vati Gap cg daa ein eR UR ede Ee RR Us 2 3 APPLICATION OF ZS 30EX1 AND ZS 31EX1 REPEATER POWER SUPPLY 2 A DESIGNATIONS Daun On t eI 2 5 TECHNICAL reor a duit d en eadein ue on tae iet uaa etu one ette cs 3 6 PRINCIPLE OF OPERATION CONSTRUCTION see
18. tions are conducted when the isolators could be subjected to harmful mechanical or electrical hazards or in cases when any abnormalities in device operation are detected 10 2 1 Some typical symptoms of inefficiency a It applies to ZS 30Ex1 Signal LED on the front panel is not lit no signal input terminals P and output terminals 0 0 and the terminal voltage V V voltage 24VDC 10 Such failures usually means damage to the power circuit fuse fuse pipe glass or ceramic 25x20 In 250mA Un 250V fast compatible with IEC60127 or equivalent standard Fuse exchange is permissible by the service user Access to the fuse is after the sliding of the part housing and removing of the fuse cover These activities can be made after switched off a supply voltage If the LED is lit and the lack of input and output signals the assessment of disability and its repair can do the manufacturer or an entity authorized by him only b It applies to ZS 31Ex1 In case of inefficacy with symptoms as in p a the assessment of damage and repairs can be doing only by the manufacturer or entity authorized by the manufacturer 10 3 If any abnormalities are detected in the functioning of the measuring system containing the repeater power supply then also the other elements of the circuit such as transducer signal lines and eventually the characteristics of repeater power supply should be checked Improper relations between the input and output
19. y in safe zones If the power supplier is installed in a hazard zone it can result in explosion or fire transmitter installed in explosion hazard zone in accordance with the their conditions of using Output circuit and the circuit supplying ZS 30Ex1 repeater power supply can cooperate with supply and measuring devices supplied by transformers from network with rated voltage of 230VAC 4 DESIGNATIONS 4 1 Designations for anti explosive versions Each ZS 30Ex1 and ZS 31Ex1 repeater power supply is equipped with a rating plates which i must include at least the following data manufacturers name CE mark designation of type 1 ZS 30Ex1 or ZS 31Ex1 product name factory number value of input and output signals mark of anti explosive construction designation of certificate 3 3 Intrinsically safe input circuit can cooperate with intrinsically safe circuit of the device 1 Ex ia Ga IIC M1 Ex ia Ma KDB 082 value of voltage current and power of matching of intrinsically safe input circuit supply and allowed capacity and inductance of the input circuit Input of intrinsically safe circuit is marked with blue color 4 2 Marking method at ordering and manufacturing versions The way of marking at ordering and the producer versions in accordance with the current catalogue or Information Cards A 3 10 ZS 30 31Ex 02 ENG 5 TECHNICAL DATA 5 1 Input circuit Input circuit consists of a current l
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