- Aplisens SA
Contents
1. 6 2 CONSTRUCTION 6 3 CASING ELECTRICAL 7 INSTALLATION LOCATION OF TRANSMITTERS 7 1 GENERAL RECOMMENDATIONS cene 7 2 MECHANICAL VIBRATION CORROSIVE MEDIA 8 INSTALLATION AND MECHANICAL CONNECTIONS 9 ELECTRICAL 9 1 GENERAL 2 5 6 A Md lll Ll ld u dud 9 2 CONNECTIONS FOR TRANSMITTERS WITH PD TYPE 1 tnter nttnttent 9 3 PROTECTION FROM OVER VOLTAGE cene 9 4 EARTHING LIA HOHER HH BCLLO H0 10 SETTING OF ZERO POSITION AND MEASUREMENT RANGE 11 INSPECTIONS AND SPARE PARTS 11 1 PERIODIC 11 2 ADDITIONAL SERVICES 11 3 OVERLOADING DAMAGE MuoooO00o0o0ouU P gt E P P G O G w o G GQ G N N 114 SPARE PARTS an L o da uo Eu 12 PACKING STORAGE AND TRANSPORTT 13 M 7 14 ADDITIONAL INFORMATION T 14 1 RELATED STANDARDS ST 15 FIGURES 5 acere recente 7 FiG 1 EL2. in which the input pressure is converted into a electrical signal The sensing modules are fitted with pressure transmitting connectors The second element of the transmitter is an electronic unit which amplifies and standardizes the output signal This is fitted with potentiometers which can be used to set the zero and the range positions The transmitters input point is fitted with a noise filter and elements protecting against excess voltage see p 9 3 The sensing module is placed inside the case The PRE 50G are designed to the low pressures measurement of gases with a permitted overpressure of 35kPa or 100kPa The economy version of this transmitter has terminals fitting 6x1 elastic tubes while the industrial version has adapters as shown in figure 2 and 3 4 DTR PRE 50G ENG 6 3 Casing Electrical connections PD connector is placed in the upper case part made of a pipe with a diameter 051 Access to the potentiometer zero is possible after removing the rubber stopper located next to base of the connector Access to the potentiometer span are obtained by removing the casing By unscrewing and removing the connector can be gained access to the potentiometers used to the zero and range setting 7 Installation Location Of Transmitters 7 1 General recommendations 7 1 1 The transmitters can be installed both indoors and outdoors 7 1 2 The place of installation should be chosen in such a way as to allow access to the devi
3. manifold or steel pulse lines 1 4 NPT connector to weld an impulse line material 15HM N Valve manifold Fig 2 PRE 50G differential pressure transmitter for low ranges max 124 DTR PRE 50G ENG Figure b PD electrical connector DIN 43650 Degree of protection IP 65 Cable 26 29 ul Morelowa 7 APLISENS SA DIFFERENTIAL PRESSURE TRANSMITTER Serial number Pressure range a PRE 50G transmitter industrial version with C type process connector to mount together with a valve manifold or weldable impulse line connectors b PRE 50G transmitter economical version with PCV type process connector PD electrical connector DIN 43650 Degree of protection IP 65 FW Cabl max 134 max 124 Serial number Pressure range Output signal Supply voltage Static pressure max 7 APLISENS S A DIFFERENTIAL PRESSURE TRANSMITTER PRE 50G tel 48 22 814 07 77 26 029 DTR PRE 50G ENG Fig 3 PRE 50G differential pressure transmitter for low ranges economic version with GP adapter Designed to measure relative pressure
4. power supply line of the transmitter a fault in the line may be indicated by the message No response or Check connection If the circuit is in order check the operation of the transmitter 11 3 Overloading Damage A transmitter malfunction can also be caused on occasion by overloading e g in instances of Over pressure Usually in such cases this is indicated by the transmitter output current falling below 4mA or rising above 20mA and failing to respond to the input pressure 7 DTR PRE 50G ENG 11 4 Spare parts The following transmitter parts may need replacing due to damage or normal wear PD connector terminal block with angular cover and seal connector base with seal rating plate case Other parts due to their special characteristics and anti explosive requirements may be replaced only by the manufacturer or an authorized firm 12 Packing Storage and Transport The transmitters should be packed in such a way as to protect them from damage during transportation and Secured so as to prevent them from moving The transmitters should be stored in multiple packs under cover in a place free of vapours and reactive substances with temperature and humidity not exceed the limits specified in p 5 4 Any means of transport may be used provided direct atmospheric effects are eliminated 13 Guarantee The manufacturer guarantees the proper operation of the transmitters for a period of 24 months fr
5. range and make the output signal equal to 4mA OMA OV by turning the zero potentiometer Turn the knob to the right to increase the output signal After the zero position has been set supply a pressure equal to the upper limit of the range and use the range potentiometer to make the output current voltage equal to 20mA 10V Recheck the zero position and repeat the procedure if necessary Potentiometers can be used to shift the zero position and the range by up to 10 without altering the setting 11 Inspections and Spare Parts 11 1 Periodic service Periodic inspections should be made in accordance with the identified site requirements and local regulations applicable to the particular installation As part of these procedures the pressure connectors should be checked to ensure tightness and for leaks The electrical connectors should be also be checked for tightness and the state of the gaskets packing glands The calibration and output should also be checked 11 2 Additional services If the transmitters are installed in a location where they may be exposed to mechanical damage over pressure over voltage inspections should be carried out as required Where it is discovered that there is no output signal or is reading incorrectly a check of the electrical li connections and wiring should be made Check whether the values of the supply voltage and load resistance are correct If a communicator is connected to the
6. ECTRICAL CONNECTIONS FOR PRE 50G TRANSMITTER 27 FiG 2 PRE 50G DIFFERENTIAL PRESSURE TRANSMITTER FOR LOW RANGES 8 Fic 3 PRE 50G DIFFERENTIAL PRESSURE TRANSMITTER FOR LOW RANGES ECONOMIC VERSION WITH GP ADAPTER 9 2 DTR PRE 50G ENG 1 Introduction 1 1 This user s manual is intended for PRE 50G electronic differential pressure transmitters Containing the data and guidelines necessary to understand the functioning of the transmitters and how to operate them It includes essential recommendations concerning installation and use as well as emergency procedures 1 2 The transmitters comply with the requirements of EU directives as shown on the plate and with the relevant Declaration of Conformity 2 User Information Together with the ordered transmitters the following is can be provided Declaration of conformity Copy of hazardous area certification on request Test calibration certificate when ordered User s Manual numbered DTR PRE 50G ENG These can be downloaded from www aplisens pl 3 Applications and main features 3 1 PRE 50G transmitters are designed to measure absolute gauge and differential pressure of non reactive gases Typical applications are low pressure measurement include the measurement of air blasts chimney draughts or pressure and overpressure in combustion chambers The transmitters are constructed up to 35kPa or 100kPa overpressures 3 2 The t
7. ce and to protect it from mechanical damage In planning the installation of the transmitter and configuration of the impulse lines attention should be paid to the following requirements The impulse lines should be as short as possible with a sufficiently large cross section and free of sharp bends in order to prevent blockages The transmitters should be installed above the measuring point so that condensation flows down n towards the site of the pressure measurement 1 The impulse lines should be inclined at a gradient of at least 10cm M The levels of filling liquid in the impulse lines should be equal or kept at a constant difference The configuration of the impulse lines should be considered taking into account the access requirements to the transmitters any manifold valves when fitted and their associated impulse lines for water or gas removal and flushing i 7 1 3 Attention should also be paid to possible installation faults which may lead to measurement errors such as connections which are not tigh sediment blockage in lines which are too narrow 7 2 Mechanical Vibration Corrosive Media 7 2 1 Transmitters will withstand and continue to function correctly in applications having vibrations with amplitudes of up to 1 6 mm and shock acceleration of up to 4g If excessive vibrations are relayed to the transmitter via the pressure process line and interfere with the measuring system PVC or similar material i
8. connectors are to be connected as shown in figure 1 To make the connections remove the terminal block from the contact pins together with its cover Then remove the block from its cover levering it off with the end of a screwdriver inserted into the slot provided for this purpose Connect the wires to the block Where the isolation of the wires in the packing gland is ineffective for example when single wires are used the opening of the gland should be carefully sealed with an elastic sealing compound to obtain IP54 ingress protection It is useful to form the segment of the signal wire leading to the PG 11 packing gland into a protective loop to prevent condensation from running down in the direction of the gland 9 3 Protection from over voltage 9 3 1 The transmitters may be at risk of over voltage caused by connection faults or atmospheric electrical discharge Protection from over voltage between the wires of the transmission line is provided by TVS diodes installed in all types of transmitter see the table column 2 9 3 2 In order to protect against over voltage between the transmission line and the casing or earth not prevented by the diodes connected between the transmission wires additional protection is provided in the form of plasma surge arresters see the table column 3 Also external protective devices may be used When the transmission lines are long it is advantageous to use one protective device near the trans
9. dPLISEN 5 DTR PRE 50G ENG APLISENS MANUFACTURE OF PRESSURE TRANSMITTERS AND CONTROL INSTRUMENTS USER S MANUAL DIFFERENTIAL PRESSURE TRANSMITTER for low ranges TYP PRE 50G WARSAW JULY 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 Symbols used Symbol Warning to proceed strictly in accordance with the information contained in the documentation in order to ensure the safety and full functionality of the device Information particularly useful during installation and operation of the device F Information on disposal of used equipment PODSTAWOWE WYMAGANIA I BEZPIECZE STWO U YTKOWANIA The manufacturer will not be liable for damage resulting from incorrect installation failure to maintain the device in a suitably functional condition or use of the device other than for its intended purpose Installation should be carried out by qualified personnel having the necessary authorisation to install electrical and pressure measuring devices The installer is responsible for performing the installation in accordance with these instructions and with the electromagnetic compatibility and safety regulations and standards applicable to the type of installation In systems with pressure transmitters there exists in case of leakage a risk to personnel on the sid where the medium is under pressure All safety and protectio
10. mitter or inside it and another near entry points to other devices used in conjunction with it Internal protection of transmitters Table 2 1 2 3 Protection between wires and earth and or casing type of protection permitted voltage Protection between wires TVS Type of transmitter diodes permitted voltage PRE 50G Output 4 20 39V DC Plasma surge arresters 230VDC two wire transmission PRE 50G Output 0 10V 0 20mA three wire transmission between power supply 39V DC between sup and output 12V DC Plasma surge arresters 230VDC 6 DTR PRE 50G ENG 9 3 3 The voltage in the protective elements must not exceed the maximum permitted values given in columns 2 and 3 of the table 9 4 Earthing The methods of earthing the transmitters are shown in figure 1 If the transmitter has via a connector a reliable galvanic connection with a properly earthed metal pipe or tank additional earthing is not necessary 10 Setting of Zero Position and Measurement Range The transmitter is factory regulated for the measurement range stated in the order After it has been installed it may become necessary for the zero position to be changed The way of gaining access to the control knob is described in 6 3 To perform the regulation connect and power the transmitter in accordance with its technical parameters Supply a pressure equal to the lower limit of the measurement
11. mpulse lines N 7 2 2 Transmitters fitted with 316L ss diaphragms should not be used where the medium is aggressive to that material 8 Installation and Mechanical Connections 8 1 The economy version of the PRE 50G transmitter can be mounted on a wall panel or other stable construction using a clamp with 29 holes The transmitter is fitted with stubs which fits an 6x1 elastic impulse tube When the measured impulse is transmitted via a metal terminal with M20 x 1 5 opening an adapter is used between the M20 x 1 5 thread and the 6x1 terminal Install the transmitter in a vertical position Where there is a significant difference between the height at which the transmitter is mounted and the height of the impulse source particularly if the measurement range is small the reading may fluctuate depending on the temperature difference between the impulse lines This effect can be reduced by ensuring that the lines run side by side 8 2 The PRE 50G transmitter can also be fitted with an adapter Figure 2 creating a C type connector designed for installation on a 3 valve or 5 valve manifold Aplisens can also supply transmitters ready mounted on valves 5 DTR PRE 50G ENG 8 3 General Note Pressure may be transmitted to the installed device only after checking that it has a measurement range which properly corresponds to the value of the measured pressure that gaskets have been properly selected and fitted and the connec
12. n requirements must be observed during installation operation and inspections If a device is not functioning correctly disconnect it and send it for repair to the manufacturer or to a firm authorised by the manufacturer In order to minimise the risk of malfunction and associated risks to personnel the device is not to be installed or used in particularly hostile conditions where the following risks occur possibility of mechanical impacts excessive shocks and vibration excessive temperature fluctuation condensation of water vapour dust icing The manufacturer reserves the right to make changes not having a negative impact on the operational parameters of the products without updating the contents of the technical manual 1 DTR PRE 50G ENG CONTENTS IM niea 2 USER INFORMATION ven 3 APPLICATIONS AND MAIN FEATURES I u u uu uuu uu uuu uuu 2 4 IDENTIFYING MARKS ORDERING PROCEDURE u uu 2 5 TECHNICAL DATA 5 1 MEASUREMENT RANGES 5 2 OPERATIONAL PARAMETERS 5 3 ELECTRICAL PARAMETERS 5 4 PERMITTED ENVIRONMENTAL CONDITIONS 5 5 CONSTRUCTION MATERIALS 5 6 PRESSURE CONNECTORS 5 7 ENCLOSURE INGRESS PROTECTION 6 CONSTRUCTION Peer 6 1
13. nal 4 20mA R Q 0 02A Load resistance for output signal 0 10V R2 5kQ Error due to supply voltage changes 0 005 V Voltage for insulation strength testing 75V AC lub 110V DC see page 5 point 9 3 Excess voltage protection see page 5 point 9 3 5 4 Permitted environmental conditions Operating temperature range 25 C 80 C Thermal compensation range 5 C 50 C or by arrangement Relative humidity 0 98 Vibration during operation max 4g Exposure to direct sunlight not recommended causing strong transmitter warming 5 5 Construction materials Casing for electronic parts Stainless steel 304 Angular connector DIN 43650 PD type Itamide Adapter 20 1 5 06 1 brass C GP Adapters Stainless steel 316Ti Valve manifold Stainless steel 316 1 NPT Connector Stainless steel 316L 5 6 Pressure Connectors PCV type process connection with terminal connecting 26 pipe GP type process connection G1 2 thread Ctype process connection to be mounted along wiyh valve manifold 5 7 Enclosure ingress protection EN 60529 IP 54 6 Construction 6 1 Principle of measurement The transmitters operate by converting changes in the piezoresistive bridge which are proportional to the measured pressure into a standard current or voltage output signal The active sensing device is a silicon diaphragm with diffused piezoresistors 6 2 Construction The basic component of the transmitter is the sensing module
14. om the date of purchase and servicing provided under the guarantee and following the guarantee period In the case of special versions the guarantee period shall be agreed by the manufacturer and the user but shall not be less than 12 months 14 Additional Information The manufacturer reserves the right to make constructional and technological changes which do not lower the quality of the transmitters 14 1 Related standards PN EN 60529 2003 Degrees of protection provided by enclosures IP Code PN EN 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use General requirements PN 82 M 42306 Screwed connectors of pressure gauges PN 81 M 42009 Automatics and industrial measurements The packing the storage and transport of devices General requirements 15 FIGURES 4OUT 2 0 10V R ae Supply Supply Supply 0 10V 0 20mA 4 20mA 3 wire system 3 wire system 2 wire system Functional earth terminal Not to be used as a protective terminal Fig 1 Electrical connections for PRE 50G transmitter Figure a PD electrical connector DIN 43650 Degree of protection IP 65 Cable 6 9 u Morelowa 7 ta 48 228140777 APLISENS S A DIFFERENTIAL PRESSURE TRANSMITTER PRE 50G max 154 Seria number Pressure range Output signat Supply voltage Static pressure max Adapter for valve
15. ransmitters generate a 4 20mA signal using two wire transmission or 0 20mA or 0 10V signal using three wire transmission 4 Identifying marks Ordering procedure 4 1 Every transmitter carries a label containing at least the following information CE mark manufacturer name transmitter type serial number pressure range output signal power supply voltage 4 2 Version types and the method of specifying the desired product are described in the relevant sales literature 5 Technical Data 5 1 Measurement ranges The PCE 50G transmitter can be produced with any desired range in the interval 250Pa do 20kPa Recommended standard ranges 0 250 Pa 0 500 Pa 0 2 kPa 0 5 kPa 0 10 kPa 150 150 Pa 250 250 Pa 0 5 0 5 kPa 1 1 kPa 2 5 2 5 5 5 kPa 10 10 5 2 Operational parameters Table 1 Measurement Range 250 Pa lt 700 gt 700 Overpressure limit Static pressure limit 35kPa 35kPa 100kPa repeatable no hysteresis Accuracy 1 6 0 6 Thermal error 10 C 1 0 2 Hysteresis and repeatability 0 05 to 0 25 depend on setting range 3 DTR PRE 50G ENG 5 3 Electrical parameters Power supply 10 39 V DC two wire transmission 12 39 V DC three wire transmission Output signal 4 20 mA two wire transmission 0 10 V three wire transmission 0 20 mA three wire transmission Load resistance Usup V UminV for output sig
16. tors have been properly screwed tight Attempts to undo the screws or fixing connector pipes on a transmitter under pressure may cause the medium to leak and create hazards for the personnel Prior to removing the transmitter the user must isolate it from the process pressure and bring any contained pressure to atmospheric level Particular care and precautions must be taken when the process medium highly reactive caustic explosive hot or otherwise hazardous to personnel If necessary rinse out this part of the system It is recommended that the user matches the screw joints material to the pressure temperature 9 Electrical Connection 9 1 General recommendations It is recommended that twisted pair cabling be used for the signal lines If the transmitter and signal line are subjected to a high level of electromagnetic interference then shielded pair cables should be used The signal wires should not run alongside network power supply cables or near to large electrically powered devices The devices used together with the transmitters should be resistant to electromagnetic interference from the transmission line in accordance with compatibility requirements It is also beneficial to use anti interference filters on the primary side of the transformers the power supplies used for the transmitters and apparatus used in conjunction with them 9 2 Connections for transmitters with PD type connector The transmitters with PD type
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