USER , S MANUAL PROGRAMMABLE TRANSDUCER
Contents
1. 0 BA input resistance 10 mQ 10 lt 200 uA Resistance of conductors connecting the RTD with the transducer Thermocouple characteristics RTD characteristics lt 20 Q conductor acc EN 60584 1 acc EN 60751 A2 45 OUTPUTS E Analogue outputs galvanically insulated with a range resolution of 0 025 current programmed 0 4 20 mA load resistance lt 500 Q or voltage programmed 0 10 V load resistance 500 Q E Relay outputs two relays voltagless and make contacts maximal load voltage 250 V a c 150 V d c current 5A 30 V d c 250 V a c resistance load 1250 VA 150 W programmable alarm thresholds three types of alarms hysteresis defined by means of the lower and upper alarm threshold signalling of alarm operation on the LCD display E Digital output interface RS 485 transmission protocol MODBUS ASCII 8N1 7E1 701 RTU 8N2 8E1 801 8N1 baud rate 2400 4800 9600 bauds max response time to the query frame 300 ms Communication parameters of the programmer socket interface UART data bit 8 parity lack stop bit 1 baud rate 9600 bit s flow control lack E Storage parameters transducer storage recording 750 samples minimal recording interval 1s E Accuracy class 0 2 0 3 for Cu100 and Ni100 minimal sub range 4 times smaller than the full range 46 E Additional error from ambient t2. In transducers of the P12 series following MODBUS protocol functions are imple mented Function description 03 03 h Table 3 Meaning Read out of n registers 06 h Recording of a single register Recording of n registers 06 16 10 h 17 11 h Identification of the slave device Read out of n registers code 03 h The function is inaccessible in the publication mode Example read out of 2 registers starting from the register which the address is 1 DBDh 7613 Request Number of registers Number of registers Hi Register address Hi 1D Register address Lo Device address 01 Function 03 Response Checksum Device CRC address 01 Number of bits 08 Register value 1DBD 7613 Register value Function 1DBE 7614 03 42 8B Recording of values into the register code 06h The function is accessible in the publication mode Example recording of the register which address is 1DBDh 7613 Request Checksum CRC Register address Hi 1D Register address Lo BD Device address 01 Register value 1DBD 7613 3F 80 00 00 Function 06 85 AD Response Checksum CRC Register address Hi 1D Register address Lo BD Device address 01 Register value Function DBD 7613 06 85 AD 29 Recording into n registers code 10h The function is accessible in the publica
3. PD14 RS 485 o DO OF 0 oO o Fig 1 View of the P12U transducer a P12U 1 b P12U 2 b socket RS 485 Programmer Socket oO Oo oOo oO oO 2 SET OF THE P12U TRANSDUCER The set is composed of P12U transducer Service manual Guarantee card Plug with screw terminals or self locking terminals Hole plug of the programmer socket 1 pc 1 pc 1 pc 4 pcs 2 pcs PD14 RS 485 o oo socket RS 485 When unpacking the transducer please check whether the type and execution code on the data plate correspond to the order code 3 BASIC REGUIREMENTS OPERATIONAL SAFETY Symbols located in this service manual mean Especially important one must acquaint with this before connecting the transducer The non observance of notices marked by these symbols can occasion the damage of the transducer A N One must take note of this when the transducer is working inconsisten tly to the expectations Remarks concerning the operator safety N e P12U transducers are destined to be mounted on 35 mm DIN rails In the range of operational safety they are in conformity with the EN 61010 1 standard requirements the installation and transducer connection should be operated by a qualified personnel e one must take into consider
4. Q KQ MQ GQ turns rps rpm rph m h km h Number of points of the individual characteristic Possible settings 2 21 Parameters of input indivi dual characteristic On the base of given co ordinates of points by the user the transducer assigns from the system of equations coefficients a and b of the individual characteristic Yn LCD a XnIn b Ynt 1LCD a Xn 1In b Xn In measured value Yn LCD expected value on the display The Fig 9 shows the ope ration way of the individual characteristic Possible settings 99999 99999 One must write in the input parameters in an ascending way Xn In lt Xn 1 In The correct writing of indi vidual characteristic para meters causes the display of the inscription writing of individual cha racteristic parameters causes the display of the inscription and the switching of the in dividual characteristic off Switching off or on of the linear individual characte ristic of the user indivi dual characteristic of the input Fig 9a On characteristic switched on Off characteristic switched off When the characteristic is switched off the transducer operates with its maximal range depending on the kind of input 19 L KI g G Q N E 5 lt T E S lt 20 Symbol on the display Description of parameters Alarming lower threshold Table
5. Y15 LCD X16 In Y16 LCD X17 In Y17 LCD X18 In Y18 LCD X19 In Y19 LCD X20 In Y20 LCD X21 In Y21 LCD 99999 99999 Parameters of the ind characterisic 1 In case of registers no occurring in the given transducer series their values is 1E 20 2 Unit values 40 oO Unit Unit Table 4 Code Unit Code Unit 1 2 3 4 5 6 7 8 9 O 41 6 6 Registers only for read out P12U transducer The value is placed in two successive 16 bit registers enclosing the same data as 32 bit registers from the 7600 area The value is placed in 32 bit registers Identifier Recording Z Read out 0 Table 5 Name of the quantity Constant identifying the device 7002 7004 7006 7008 7010 7012 7014 7016 7018 7096 Status Steering Min Max Measured value No occurs Hour No occurs No occurs 0x71 P12H 0x72 P128 0x74 P12U 0x73 P120 0x79 P12P Status is the register describing the transducer current state It is the register describing the steering of the analogue output Minimal value of the currently measured value Maximal value of the currently measured value Currently measured value Current time 1 In case of registers no occurring in the
6. off LCD Maintenance of the alarm signalling on the display Relay maintenance of the alarm relay LCD Rel maintenance of the signalling on the display and the On characteristic switched on Off characteristic switched off When the characteristic is swit ched off the transducer ope rates with the maximal range Parameters of the individual characteristic of the analogue output On the base of given coordinates of two points by the user the transducer determines from the system of equations the coeffi cients a and b of the individual characteristic Y1 Out a X1 LCD b Y2 Out a X2 LCD b Where X1 LCD and X2 LCD the dis played value Y1 Out and Y2 Out expected value on the analogue output The fig 9 presents the graphical illustration explaining the idea of the individual characteristic Possibilities of settings 99999 99999 21 Output parameters continuation Servicing parameters 22 Symbol on the display Description of parameters Baude rate of the RS 485 interface Table 1 continuation Range of changes 2400 b s 4800 b s 9600 b s Kind of transmission through the RS 485 interface Off interface switched off ASCII 8N1 ASCII 7E1 ASCII 701 RTU 8N2 RTU 8E1 RTU 801 RTU 8N1 Device address Factory parameters Factory parameters are presented in the table 2 0 247 The pressure of the L 1 key cau
7. 1 continuation Range of changes 99999 99999 Alarming upper threshold Type of alarm Fig 8 presents types of alarms 99999 99999 Normal normal On switched on Off switched off Hand on Switched on manu ally up to the time of changing the alarm type the alarm output remains switched on for good Hand off Switched off manu ally up to the time of changing the alarm type the alarm output remains switched off for good Delay of alarm operation The parameter is defined in se conds ie one must give after how many seconds from its oc currence the alarm operation will follow The alarm operation occurs after the measurement averaging The alarm switching off follows without delay 0 0 9999 9 The introduction of 0 0 causes the operation at the moment of the alarm occurrence Alarm 1 and alarm 2 parameters continuation Output parameters The maintenance of the alarm signalling In the situation when the maintenance function is switched on after the withdrawal of the alarm state on the display and or the contact state does not change It signals the alarm state till the moment of its termination by means of the key and LE during ca 3 s The switching on or off of the individual linear user s characteristic the individual characteristic of the analogue output Fig 9b Table 1 continuation Off Maintenance switched
8. aBueyD eu Jo aBueyo ou jo aBueyD 66 uiod jewioap ou 40 Bulyoje Ww 4ajowesed seduauinu Julod Jewi2ap ay jo abueyo y YIM onjeA JaJaWe1ed pajaajas ay Jo abueya zo ajdwexy Ca CA CA CA uonisod Bulysely uonisod Bulysely uonisod Hulysely JO oBueu9 y Jo eaBueyD eu Jo eabueyD eu Jo buryo MJBU ou pue SO19Z PIOA JO Burue g 4ajowesed jesuawnu juiod Jewi2ap ay jo abueyo y JNOYJIM onjeA JaJawWesed pajaajas ay JO abueya jo ajdwiexy 15 5 2 Change of P12U transducer parameters through the PD14 programmer The way of connection of the P12U transducer through the PD14 programmer to the PC computer is shown on the Fig 7 The programmer is connected from one side to the USB port of the PC computer and from the second side through a plug of RJ12 type to the P12U transducer Nee En PD14 RS 485 Set of the PD14 programmer Fig 7 Connection way of the P12U transducer through the PD14 programmer to the PC computer Programmable transducer parameters are presented in the table 1 The programming of parameters is possible after the previous introducing of the password 16 Programmable parameters of the P12U transducer 2 2 E G Q kad 2 Input type Table 1 Symbol Description of parameters Range of changes on the display Resistance thermometers Pt100 Pt500 Pt1000 Cu100 Ni100 Thermocouples Therm J Fe CuNi Therm K N
9. 2 parameters 11 In spite of the relay swit ching off the alarm occurrence is still signalled on the display In spite of the retract of the alarm signalling on the display the relay is still switched on Check whether the support of the alarm sig nalling or the relay is switched on Hold All Hold Al2 parameters In case of necessity switch it off 12 Lack of possibility to erase the signalling from the display or switch the relay off by means of the combination of keys when the parameter of the alarm signalling support is switched on The alarm is still operating The erased alarm signalling from the display is imme diately displayed again The erased relay is switched on again at once 13 In spite of the fact that the alarm still lasts the erased alarm signalling from the display is not displayed again or and the relay remains switched off Check whether a delay in the relay operation was not introduced Delay Al1 Delay Al2 parameters 14 Instead to display the measuring result the transducer displays the parameter symbol and its value 15 A delay of the alarm opera tion was introduced e g 30 s but the alarm after this time did not operate The transducer works in the review mode or the programming matrix Press the erase key The persisting alarm state was shorter than the programmed one i e a state of the alarm retract occurs during the alarm operation In that case the transd
10. L METERS DIN INSTRUMENTS RECORDING m DIGITAL CLAMP ON METERS m INDUSTRIAL PROCESS and POWER CONTROLLERS m CHART and PAPERLESS RECORDERS m POWER CONTROL UNITS AND SOLIDE STATE RELAYS E 1 PHASE and 3 PHASE WATT HOUR METERS m ELEMENTS OF INTEGRATION SYSTEMS E ACCESSORIES for MEASURING INSTRUMENTS SHUNTS MEASURING SYSTEMS ENERGY HEAT CONTROL m CUSTOM MADE PRODUCTS ACCORDING CUSTOMER S REQUIREMENTS WE ALSO OFFER OUR SERVICES IN THE PRODUCTION OF m ALUMINIUM ALLOY PRESSURE CASTINGS m PRECISION ENGINEERING and THERMOPLASTICS PARTS E SUBCONTRACTING of ELECTRONIC DEVICES SMT E PREASSURE CASTINGS and OTHER TOOLS QUALITY PROCEDURES According to ISO 9001 and ISO 14001 international requirements All our instruments have CE mark For more information please write to or phone our Export Department LUMEL Lubuskie Zaktady Aparatow Elektrycznych LUMEL S A ul Sulechowska 1 65 022 Zielona Gora Poland Tel 48 68 32 95 100 exchange Fax 48 68 32 95 101 www lumel com pl e mail lumel lumel com pl Export Department Tel 48 68 329 53 02 or 53 04 Fax 48 68 325 40 91 e mail export lumel com pl P12U 09A
11. Lower value of display 7274 7637 Y1 Out w 99999 99999 Lower value of analogue output Ir l Ir 7276 7638 X2LCD w 99999 99999 Upper value of displa 7278 7639 Y2 Out w r 99999 99999 Upper value of analogue output 7280 7640 Time w r 0 99999 Current time This parameter occurs with four places after the decimal point in the format gg mmss where gg means hours mm means minutes ss means seconds In case of a wrong time introduction the transducer will correct it automatically Choice of unit Recording of measured quantity Value 0 Charact switched off 1 Charact switched on r 0 99 5959 Time interval of the recording w t 1970 2038 Year of the recording start 1 12 Month of the recording start 1 31 Day of the recording start Parameters Year Month Day are infor mation parametrers They do not serve to define the data from which the recording is to begin but only to inform when the recording started 7294 7647 Startmem w r 0 23 5959 Time of recording start This parameter occurs with four places after the decimal point in the format gg mmss where gg means hours mm means minutes ss means seconds In case of a wrong time introduction the transducer will correct it automatically Interval W 36 Del Min Erasing of the minimal value Value 0 No operation 1 Erasing of the min va
12. PROGRAMMABLE TRANSDUCER WITH RS 485 INTERFACE temperature standard signals d c voltage d c current P12U 45 x 120 x 100 mm USER S MANUAL CE CONTENTS PAGE 1 APPLICATION ennemie boue de ou 3 2 SET OF THE P12U TRANSDUCER ou 4 3 BASIC REQUIREMENTS OPERATIONAL SAFETY 5 4 INSTALEATIONS ns nement uen 5 4 1 Fitting of thie P12U transducer 2 eaaa eaaa eee eee 5 4 2 External connection diagrams nasa a eee n een eaaa aee nenen a anaa anae 6 D SERVICING issart tesa naga aa aa aaa ga aa na En a rana an ajeg ga saa na E ang aa Tan kaa ENG apah 9 6 RS 485 INTERFACE nine cena entiere 27 Te TECHNICAL DATA nee ng aee aa ga a sapa a a eag aa a a a Ga aaa anadak a SE 45 8 BEFORE A DAMAGE WILL BE SUBMITTED ecean ea nene nenen anae 48 9 EXAMPLES OF P12U TRANSDUCER PROGRAMMINGS 51 10 EXECUTION CODES AND ORDERING eran nene nenen anana nane rarene 53 11 MAINTENANCE AND GUARANTEE ss 56 1 APPLICATION The P12U programmable transducer is intended to the conversion of temperature resistance voltage from the shunt standard signals d c voltage and d c current into a d c standard signal or d c voltage standard signal The output signal is galvanically isolated from the input signal and the supply The read out field can be an LCD 2 x 8 display only in the P12U 2 execution The P12U transducer is programmed by the producer according the ordered exe cutio
13. RAMMABLE TRANSDUCER Kind of transducer without a display with a display Input signal Write the input signal code from the table 7 Output signal voltage 0 current 0 20 mA current 4 20 mA current 0 5 mA on order Supply 852593 VACA nnn AA e BE 1 20 50 V a C d C w w wanwanamamamawamawawzamumamawamawawa 2 Kind of terminals socked screw plug on order Version standard custom made Acceptance tests without an extra quality inspection certificate with an extra quality inspection certificate acc user s agreement The transducer has an universal input One must give in order the code of the input signal which will be programmed After agreeing by the producer ae Possible execution with self locking sockets 53 The transducer maintains its class to the fourfold decrease of the basic range of the input signal In the PU12 1 transducer besides the basic range one must give the required sub range in remarks In case when the given sub range is smaller than the basic range divided by four one must precise the input signal on the XX order Table 7 Code of the input signal Resistance thermometer Pt100 200 850 C Resistance thermometer Pt500 Resistance thermometer Pt1000 200 850 C 200 850 C Resistance thermometer Cu100 50 180 C Resistance thermome
14. Security requirements acc IEC 61010 1 installation category II pollution degree 2 phase to earth maximal working voltage 600 V a c 8 BEFORE A DAMAGE WILL BE SUBMITTED A In case of incorrect symptoms please to acquaint with the below table SYMPTOMS PROCEDURE 1 The transducer diode does Check the connection of the mains cable not light Lack of any indications 2 The time eg 12 34 43 and The number of measurements Cnt 0 has been the TIME inscriptions are alter introduced The transducer is working in the nately displayed with the P12U SLEEP mode inscription on the display 3 Inscriptions Over Hi or Over Check the correctness of the input signal Lo are displayed on the display connection See the service manual Check also the setting of D_P and Char In para meters 48 4 A signal inconsistent with our expectations occurs on the transducer output One must check whether the load resistance of the analogue output is compatible with the technical data Check whether the individual characteristic is not switched on In case of necessity make the change of the individual characteristic parameters or introduce factory parameters Par fact 5 Lack of possibility to enter into the programming mode The inscription Security error is displayed The programming mode is secured by the password In case when the user will forgot which password had been introduced he s
15. and sub range 0 400 C range means The execution of a P12U transducer with following requirements 1 without a display 05 programmed by the manufacturer to co operate with a J Fe CuNi thermocouple in the sub range 0 400 C 1 output signal 0 10 V 1 supply voltage 85 253 V a c d c 0 socket screw plug terminals 00 standard execution 8 without an extra quality inspection certificate 55 11 MAINTENANCE AND GUARANTEE The P12U transducer does not require any periodical maintenance In case of some incorrect unit operations 1 In the period defined in the guarantee card from the date of purchase In case of any damage or incorrect operation one should take the transducer down from the installation and return it to the Producer s Quality Control Dept If the unit has been used in compliance with the instructions the producer guarantees to repair it free of charge The disassembling of the housing can cause the cancellation of the granted guarantee 2 After the guarantee period One should turn over the transducer to repair in a certified service workshop Spare parts are available for the period of five years from the date of purcha se The producer reserves the right to make changes in design and specifications of any products as engineering advances or necessity 56 oF SALES PROGRAM m DIGITAL and BARGRAPH PANEL METERS MEASUREMENT m MEASURING TRANSDUCERS CONTROL m ANALOG PANE
16. ation all accessible protection requirements before switching the instrument on one must check the correctness of the network lead connection e incase of the protection terminal connection with a separate lead one must remember to connect it before the connection of network leads e do not connect the instrument to the network through an auto transformer before taking the transducer housing out one must turn the supply off e the removal of the transducer housing during the warranty contract period may cause its cancellation e the programmer socket serves only to connect the PD14 or PD11 programmer e the RS 485 socket serves only to connect devices working with the MODBUS protocol e place hole plugs into the unused transducer sockets of the programmer and RS 485 4 INSTALLATION 4 1 Fitting of the P12U transducer P12U transducers are designed to be installed on a 35 mm DIN rail acc DIN EN 50 022 On the external side of the transducer there are screw or self locking terminal strips enabling the connection of 2 5 mm cross section conductors The housing is made of a self extinguishing thermoplastics Overall dimensions of the 5 housing 45 x 120 x 100 mm Overall dimensions and the fixing way are shown on the fig 2 41 120 YA ME 35 120 7 o o 0 0 0 o 100 Fig 2 Overall dimensions an
17. bytes in case of work in the RTU mode 1 byte in case of work in the ASCII mode 31 Example Work in the RTU mode eg Mode TRU 8N2 value 0x02 in read out recording case through the interface P12U transducer Execution with a voltage analogue output 00 Nr of the software version 1 00 Device address set on Address 0x01 For such a type of transducer the frame has the following form Checksum CRC Device Function Number Device Device Field depending of the address of bits identifier state device type 01 11 08 74 FF 55 00 3F 800000 3DA9 6 4 Map of P12 transducer registers Map of P12 transducer registers Table 4 Address Typ of value Description range 7000 7200 Float 32 bits The value is placed in two successive 16 bit registers Registers enclose the same data as 32 bit registers from the 7500 area Registers are only for read out 7200 7400 Float 32 bits The value is placed in two successive 16 bit registers Registers enclose the same data as 32 bit registers from the 7600 area Registers can be read out and recorded 7500 7600 Float 32 bits 7500 7600 float 32 bit The value is placed in a 32 bit register Registers are only for read out 7600 7700 float 32 bits The value is placed in a 32 bit register Registers can be read out and recorded 32 6 5 Registers for recording and read out P12U transducer Table 3 Description The value is
18. d fixing way of P12U transducers 4 2 External connection diagrams N Electrical connections must be executed according Fig 3 Taking into consideration electromagnetic interference it is recommended to use screened conductors to connect input or output signals The supply must be connected through a two wire conductor of appropriate diameter ensuring its safety by means of an installation fuse Alarm Analogue Supply outputs output DS ie oO A1 A2 Q Resistance thermometer Resistance thermometer Thermocouple or voltage in two wire system in three wire system 10 70 mV 7 GND 5 MA 20 MA Voltage input Current input Current input 5 mA and 20 mA 1Aand5A b Conection way of the RS 485 interface P12 transducer A B GND RS 485 socket IBM PC computer ie A E i eel 3i 1 l ie fee Wai 4 a E T mg AH 1617 IBM PC computer Eo ee with RS 485 card 617 EE ee ee ee Fig 3 External connections of the P12U transducer 5 SERVICING After connecting external signals and turning the supply on what is signalled by a lighted diode the transducer displays the type and the current version of the program After ca 3s the transducer automatically transits into the working mode in which it executes the measurement and conversion into an analogue output signal It displays the measured value the unit of the measured or set value by the user and marks of connect
19. d press the 2 key choose the no point parameter and introduce the value 6 choose the X1 IN parameter and introduce the value 1 choose the Y1 LCD parameter and introduce the value 10 choose the X2 IN parameter and introduce the value 2 00 choose the Y2 LCD parameter and introduce the value 50 choose the X3 IN parameter and introduce the value 3 choose the Y3 LCD parameter and introduce the value 200 choose the X4 IN parameter and introduce the value 10 00 choose the Y4 LCD parameter and introduce the value 200 choose the X5 IN parameter and introduce the value 12 00 choose the Y5 LCD parameter and introduce the value 170 choose the X6 IN parameter and introduce the value 20 00 SI e choose the Y6 LCD parameter and introduce the value 80 e choose the Char In parameter and switch the individual characteristic On Example 2 Alarm programming with hysteresis If we want to program the alarm 1 operation in order that at the 850 C value the alarm was switched on whereas it was switched off at the 100 C value and the alarm 2 operation in order that at the 1000 C it was switched off and switched on at the 199 C value one must e enter into the programming mode choose the Low All parameter and introduce the 100 value e transit on the High Al1 parameter and introduce the 850 value e transit on the type Al1 parameter and choose the function marked as Normal e choose the Low AI2 parameter and introduce the 1000 valu
20. e e transit on the High Al2 parameter and introduce the 199 value e transit on the type Al2 parameter and choose the Normal function Example 3 Alarm programming in the set interval with delay If we want that the alarm 1 was switched on in the interval from 100 V to 300 V and operated only after 10 s one must e enter into the programming mode choose the Low All parameter and introduce the 100 value e transit on the High All parameter and introduce the 300 value e transit on the type All parameter and choose the On function e transit on the parameter Delay All parameter and introduce the 10 0 value In case of continuation of the alarm state more than 10 0 seconds the transducer will switch the alarm relay on or and signal this on the display Example 4 Programming of the analogue output If we want to program in order that the 4 00 mA value will correspond to the displayed 0 00 mA value on the analogue output whereas the 20 mA value will correspond to the 20 mA value one must e enter into the programming mode choose the Char out parameter and switch on the On individual characteristic choose the X1 LCD parameter and introduce the 0 00 value transit on the Y1 OUT parameter and introduce the 4 00 value transit on the X2 LCD parameter and introduce the 20 00 value transit on the Y2 OUT parameter and introduce the 20 00 value 52 10 EKECUTION CODES Execution codes of the P12U transducer Table 6 P12U PROG
21. e in the memory Stored Stored value number into the memory 1332 7666 value r 0 750 placed in the first buffer register number Value 0 The memory is empty 1 750 Nr of the stored value Number of 7334 7667 recorded r 0 750 Number of the recorded buffer registers register Value 0 The buffer is empty 1 750 Number of recorded registers 7336 7668 Year 1970 2038 Year for the value in the first register 7338 7669 Month r 1 12 Month for the value in the first register 7340 7670 Day r hi Day for the value in the first register 38 Table 3 continuation 7342 7671 Time 0 23 5959 Time for the value in the first register This parameter occurs with four places after the decimal point in the format gg mmss where gg means hours mm means minutes ss Means seconds 7344 7382 7691 1612 Buffer r Stored values read out from the memory 20 registers including 20 stored values No point Number of points of the individual characteristic Char in Individual characteristic Value 0 Charac switched off 1 Charac switched on 99999 99999 Parameters of the ind characterisic 39 X10 In Y10 LCD X11 In Y11 LCD X12 In Y12 LCD X13 In Y13 LCD X14 In Y14 LCD X15 In
22. ed alarms The transducer automatically blanks void zeros The recording switching on is signalled on the display the mark M means the recording switching on the mark E means an empty blank memory however the mark F means a full memory After filling the memory the transducer automatically switches the recording off o O 6 6 Recording mark KUKAA KA M recording switched on E blank memory F full memory LED diode Result Alarm signalling 1 alarm1 switched on 2 alarm 2 switched on 1 2 alarm 1 and 2 switched on Resignation key Key to increase the value Acceptation Key to decrease key the value Programmer PD14 RS 485 RS 485 connector 2 interface o o o a O 9 Fig 4 Description of the P12U transducer frontal plate Key functions acceptation key entry into the programming mode hold down ca 3 s entry into the change of the parameter value mode acceptation of the modified parameter value amp key to increase the value display of the maximal value moving along the preview menu or on the programming matrix modification of the chosen parameter value value increasing Cv key to decrease the value display of the minimal value moving along the preview menu o
23. emperature changes E Conversion time P12U 1 P12U 2 E Rated operating conditions supply voltage depending on the execution code supply voltage frequency ambient temperature storage temperature air relative humidity preheating time of the transducer working position E Sustained overload thermocouples resistance thermometers measurement of voltage current and resistance E Short duration overload 3 sec inputs of sensors and voltage 60 mV voltage input gt 3 V current input E Display field w P12U 2 E Servicing in P12U 2 E Ensured protection degree through the case 0 1 of the range 10K 0 2 of the range 10K for R S or T thermocouples ar az lt 200 ms min 200 ms averaging time min 100 ms output response time 100 ms 85 230 253 V a c d c 20 24 50 V a c d c 40 50 60 440 Hz 25 23 55 C 25 85 C lt 95 inadmissible condensation 10 min any on a 35 mm DIN rail 1 Yo 20 Yo 30 V 10 Un lt 1000 V 3 In LCD 2x8 display indication range 99999 99999 four keys Le CE F a IP 40 47 E Dimensions 45 x 120 x 100 mm E Mass lt 300 9 E Fixing on a 35 mm DIN rail E Power consumption lt 4VA E Resistance against current decay acc EN 50082 2 E Electromagnetic compatibility immunity acc EN 61000 6 2 emissions acc EN 61000 6 4 E
24. ff 1 Reasing to a power 2 Extraction of roots 3 No occurs No occurs No occurs No occurs No occurs Lower threshold of alarm 1 Upper threshold of alarm 1 Alarm 1 type w r_ 99999 99999 34 Normal Switched on Switched off Manually switched on Manually switched off Table 3 continuation 7248 7624 Delay ALI 0 9999 9 Delay of alarm 1 7250 7625 Delay ALI of the alarm 1 signalling Holding switched off Signalling on LCD Relay holding Signalling on LCD and relay holding To erase the alarm holding one must switch the holding off 0 value and then return to the previously set value Low AL2 wr High AL2 wit Type AL wr Vawe O Normal Switched on Switched off Manually switched on Manually switched off 7260 7630 Delay AL2 0 9999 9 Delay of the alarm 2 Hold AL2 Holding of the alarm 2 signalling Value 0 Holding switched off Signalling on LCD 1 2 Relay holding 3 Signalling on LCD and relay holding To erase the alarm holding one must switch the holding off 0 value and then return to the previously set value z264 7632 No occurs AA z266 7688 3 AA 7268 7634 Noos 35 7210 7635 Char Out wr 0 1 Characteristic of analogue output Charact switched off Charact switched on 7272 7636 X1LCD w r 99999 99999
25. given transducer series their values is 1E 20 Caution e while exceeding the upper or the lower parameter range displayed value minimum maximum are set on the 1E 20 value 42 For the Cnt 0 parameter measurement switching off or display blanking the Maximum minimum or displayed value parameters are set on the 1E 20 value Description of the status register Recording of measuring results in the memory Error of the conductor resistance compensation Kind of output voltage current Signalling of the upper range exceeding Signalling of the lower range exceeding Individual characteristic or lack of it State of the relay alarm 2 State of the relay alarm 1 Working mode and Position of information Baud the decimal unit rate point bits 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 MSB LSB Bit 15 Recording of measurement results in the memory 0 recording switched off into the memory 1 recording switched on into the memory Bit 14 Error of the conductor resistance compensation 0 lack of error 1 signalling of the compensation error 43 Bit 13 Kind of output voltage current 0 voltage 1 current Bit 12 10 Working mode and information unit 000 interface switched off 001 8N1 ASCII 010 7E1 ASCII 011 701 ASCII 100 8N2 RTU 101 8E1 RTU 110 801 RTU 111 8N1 RTU Bit 8 9 Baud rate 00 2400 bit s 01 4800 bit s 10 9600 bit s Bi
26. hould phone the nearest service workshop 6 Lack of certainty if all cha racter fields of the display are efficient Enter into the programming matrix and switch the display test on The character fields are successively lighted in the first line till the lighting of the last field Then the whole line is lighted This operation is repea ted for the second line If otherwise submit the fault to the nearest service workshop 7 During the moving along the programming mode values not conform to the range of changes given in the table 1 occur on the display Check whether the individual characteristic is not switched on In case of needs enter into the programming matrix and accept the Par fact parameter 8 A result inconsistent with our expectations appears on the display Check whether the individual characteristic is not switched on In case of needs enter into the programming matrix and accept the Par fact parameter The transducer will introduce parameters acc the table 2 9 Symbols of X1In X2In Y1 LCD Y2 LCD and successi ve parameters are not displayed in the programming mode In case of the switched individual characteristic off the mentioned symbols are avoided 49 10 In spite of the alarm threshold overrunning the alarm does not switch on and lack of signalling on the display Check the introduced delay into the alarm operation If possible correct Delay All Delay Al
27. iCr NiAl Therm N NiCrSi NiSi Therm E NiCr CuNi Therm R PtRh13 Pt Therm S PtRh10 Pt Therm T Cu CuNi 400 Q 4kQ 70 mV Standard signals 3V 10V 5 mA 20 mA High signals 200 V 600 V 1A 5A Mathematical functions The conversion of the result through mathematical functions follows before the individual characteristic Off mathematical functions switched off Saqr raising to a power result Sart extraction of roots result Exp result inverse result 17 Programmable parameters of the P12U transducer gt lt 2 amp gt wy lt 2 v bad x pas Q kad gt Q 18 Symbol on the display Description of parameters Kind of compensation of sensor working conditions changes 1 in case of a resistance thermometer and resistance measurement concerns the compensation of the resi stance change of conductors connecting the sensor with the transducer in case of a thermocouple concerns the compensation of reference cold junction temperature changes The automatic compensation does not operate in case of the resistance measurement up to 4 kQ Pt1000 and Pt500 Table 1 Range of changes Auto The automatic compen sation in case of resistance thermometers and resistance measurements requires a three wire line 0 60 C value of the reference cold junction temperature for thermoc
28. lay switched off State of contacts upper lower Measured value alarm threshold 1 Relay switched on 0 Relay switched off N es oO C Q oO wu O D 0 lower Measured value alarm threshold 1 Relay switched on 0 Relay switched off State of contacts lower Measured value alarm threshold Fig 8 Alarm types a b normal c switched off d switched on 24 a Displayed guantity Y3 LCD and Y4 LCD Measured quantity Kino X2In Kin X41n X5 In X1 In value on the transducer input gt Y1 LCD value on the display X5 In value on the transducer input gt Y5 LCD value on the display The other points of the characteristic are calculated b Quantity on the nalogue output isti analog p Any characteristic inclination ND Out aa ana asha Y1 Out Any displacement of the characteristic X1 LCD X2 LCD Displayed value X1 LCD value on the display gt warto Y1 value on analogue output X2 LCD value on the display gt warto Y2 value on analogue output The other points of the characteristic are calculated Fig 9 Individual characteristic a individual characteristic of the input b individual characteristic of the analogue output 25 Caution A 1 In case of the transducer work with a resistance thermometer in the two wire system the choice of the option with an automatic compensation of conductor resistance change will ca
29. lue Del Max Erasing of the maximal value 7800 7310 7650 7655 Year of the stored value No occurs 1970 2038 Value 0 No operation 1 Erasing of the max value Year of the stored value in the memory Month of the stored value Month of the stored value in the memory Day of the stored value Day of the stored value in the memory Time of the stored value 0 23 5959 Time of the stored value in the memory This parameter occurs with four places after the decimal point in the format gg mmss where gg means hours mm means minutes ss Means seconds In case of a wrong time introduction the transducer will correct it automatically Number of the stored value Number of the stored value in the memory 3 Table 3 continuation 7330 7665 Status w t 0 7 Status of the operation in the buffer Value 0 No operation 1 Search acc the date and time registers 7660 7663 and 7320 7326 2 Search acc the time registers 7663 and 7326 3 Search acc the index registers 7664 and 7328 4 Load next values in to the buffer registers 7672 7691 and 7344 7382 5 Load previous values in to the buffer registers 7672 7691 and 7344 7382 6 Go to the first stored value in the memory 7 Go to the last stored valu
30. n code but it is possible to change the parameters by means of the keyboard in the P12U 2 execution through RS 485 or through the PD14 programmer The PD14 programmer is a universal device serving to program all the P11 and P12 transducer family FEATURES P12U transducers realize following functions conversion of the measured value into any optional output signal on the base of the individual linear characteristic re count of the input signal into the indication on the base of the multi segment individual characteristic maximum 20 segments signalling of the set up alarm value overrunnings recording of the input signal in programmed time periods arithmetical raising to a power extraction of roots or result inverse programming of the indication resolution only in P12U 2 preview of set up parameter values switching the automatic compensation on or off Possible introduction of a manual correction storage of maximal and minimal values programming of the measurement averaging time display of the unit according the table 1 servicing of the RS 485 interface in the MODBUS protocol both in ASCII either in RTU mode deadlock of the parameter introduction by means of a password 1 Note One must ordered the PD14 programmer separately 6 Programmer Socket
31. ouples 0 40 Q resistance of two wi res for resistance thermometers and resistance measurement The accuracy of data intro duction 0 1 The written in values beyond the interval of the manual com pensation range will cause the switching of the automatic com pensation on Setting of the decimal point The setting operates either when the individual characteristic is switched off or on The introduction of the decimal point which makes impossible the display of 7 characters or 5 characters for the result the decimal character on the display will cause the display of the low or upper exceeding Possibility of settings 00000 0000 0 000 00 00 000 0 0000 Auto automatic choice of the decimal point Averaging time of the mea surement 0 9999 9 s The writing of the 0 causes the measurement switching off and the stoppage of the trans ducer work The current time is displayed on the display Selection of the unit Possibility of settings V A LV mV kV MV LA mA kA MA mW W kW MW var kvar Mvar VA kVA MVA C F K Hz KHz MHz mAh Ah kAh Wh kWh MWh m s um mm cm m km m2 m m2 s S gt S 8 2 D kad S Q Q Table 1 continuation m2 min m2 h m s m min m3 h 1 Vs min Ih l m2 1 m3 kg s kg min kg h ms s h mN N KN Pa hPa kPa MPa mmHg bar rad mQ
32. own on a lower line The moving on the recorded values follows after pressing the _ and _ amp keys The holding down of one of these keys for a laps of time longer than 2 s will cause the acceleration of the reviewing The pressure of the _ key causes the Pos Size display inscription and the appearance of the sample number and the full quantity of the occupied memory The exit from the review of recorded values is carried out by means of the key The algorythm of the transducer servicing is shown on the Fig 5 p 11 BbuisiMes ABINPSUCI NZLd 24 JO WUYJAIOBHIY G Bi anjea anyjea JEWIKRU y JEWIUILW ou jo Aejdsig jo Ae dsig Cv CA 10119 Ay1n99S UOI CIIDSUI 1991109UI y jo Aejdsiq uol onpoljui nuaw Honponu juaoweainseayy Maod ou piomssed MelIA8ld uo BuIAON Ta e gt Cv A Jo944092 CAD me E De xew eu Buiruwe1iBoid gt uo BuAo JO xuyew s E onjeA sjndjno wueye anjea A EAN OUT OA sl CES jewxew au 10 pue jEWIUIW 3y abueyo Jejowejed 10 Aud C jo Buiselz Buljjeubis jo Buiselz jo Buiselz 12 The appearance of mentioned below symbols and inscriptions means Incorrectly introduced security code Overrunning of the lower measuring range or lack of sensor Overrunning of the lower measuring range or sensor short circuited E
33. placed in two successive 16 bit registers enclosing the same data as 32 bit registers from the 7600 area The value is placed in 32 bit registers Recording w Read out r Identifier Device identifier Identifier 7601 Type of input Pt100 RTD Pt500 RTD Pt1000 RTD Cu100 RTD Ni100 RTD J thermocouple K thermocouple N thermocouple E thermocouple R thermocouple S thermocouple T thermocouple R meas up to 400 Q R meas up to 4 kQ Volt meas 10 70 mV Volt meas 0 3V Volt meas 0 10 V Current meas 0 5 mA Current meas 0 20 mA Volt meas 0 200 V Volt meas 0 600 V Current meas 0 1 A Current meas 0 5 A 0 1 2 3 4 5 6 7 8 Table 3 continuation 7204 7602 No occurs i it 210 7605 212 7606 No occurs No occurs No occurs No occurs 7914 7607 No occurs 7 m if M m 7 216 7608 218 220 222 224 226 7609 7610 7614 7612 7613 Compens sensor working conditions No occurs No occurs No occurs No occurs w r Decimal point 00000 0000 0 000 00 00 000 0 0000 Automatic decimal point 7228 7614 Cnt wr 0 9999 9 Measurement time Function Arithmetical functions iE 7 TA ih 7242 7621 LowALI w r__ 99999 99999 7 7617 7618 7619 7620 234 236 238 240 244 7622 High AL1 Type ALI Value 0 Switched o
34. r on the programming matrix modification of the chosen parameter value value decreasing Ce key for the value resignation entry into the menu of parameter preview hold down ca 3 s exit from the preview menu or programming matrix resignation of the parameter change The pressure of LE and __ keys and holding down within ca 3 s causes the erasing of the alarm signalling and or alarm outputs This operation works exclusively when the support function is switched on The pressure of and _ _ keys causes the erasing of the minimal value The pressure of LE and __ keys causes the erasing of the maximal value The pressure and holding down of the L key within ca 3 s causes the entry into the programming mode The programming mode is secured by a security code 10 The pressure and holding down of the key within ca 3 s cause the sik into the preview menu One must move on the preview menu by means of _ land a keys In this menu all transducer programmable parameters are accessible only for readout with the exception of servicing parameters The exit from the preview menu is carried out by means of the LE key It is possible to review recorded values in the preview menu The pressure of key causes the entry into the review menu of recorded value The upper line informs about the sample recording time However the value of the recorded sample is sh
35. rror of the conductor resistance compensation No connected or damaged conductor Incorrect introduction of individual characteristic pa LACE iti rameters In this case the switching of the individual frm pepe gang pn characteristic off follows One must introduce input _ _ parameters in an ascending way Xn In lt Xn 1 In The change of transducer parameters is possible from the transducer keyboard in P12U 2 p 5 1 through the PD14 programmer and a PC computer p 5 2 through RS 485 p 6 5 5 1 Change of P12U transducer parameters from the keyboard The pressure of the _ key within ca 3 s causes the display of the inscription saman MISES SIEA SIEI MESIE 13 The writing of the correct code in causes the entry into the programming mode The designs below present the way of programming Exemplary view of the display in the measurement mode Entry into the programming mode If the code is wrong If the code is correct Input Ca moving on the View Interval programming matrix of the display with the Cv first t chosen parameter Examples of value changing of the chosen parameter parameter symbol Value change of the selected parameter 14 epou buruuwebosd ay ul Xijew UONnISUPIL 9 Bi CD CA Ca Ca Ca uonisod Bulyseyy uonisod Buiyse uonisod Buiyse juiod jewloap Buiyse 10 aBueyo y jo eBueyo y jo
36. se of long connections One must connect it to the protective terminal this is not necessary for a correct interface operation To obtain the connection with a computer of IBM PC class a converter USB into RS 485 of PD10 type of LUMEL S A production or an RS 483 interface card is indispensable The way of P12U transducers connection through a PD10 converter is presented on Fig 3 The denotation of transmission lines for the card in the PC computer depends on the card producer 6 2 Description of the MODBUS protocol implementation The implemented protocol is in compliance with the specification PI MBUS 300 Rev G of the Modicon Company Set of parameters of the transducer serial link in the MODBUS protocol transducer address 1 247 baud rate 2400 4800 9600 bit s working mode ASCII RTU information unit ASCII 8N1 7E1 701 RTU 8N2 8E1 801 8N1 maximal response time 300 ms The parameter configuration of the serial link is described in the further part of the Service Manual This configuration consists on the settlement of the baud rate Baud parameter device address Address parameter and the type of the information unit Mode parameter Note Each transducer connected to the communication network must have a unique address different from other devices connected to the network the same baud rate and type of the information unit 28 6 3 Description of the MODBUS protocol functions
37. ses the registration of factory parameters Introduction of a new pas sword 99999 99999 Display test The display test consists on a successive lighting of the first line of LCD display segments and next the whole line The same test is carried out for the second line The pressure of the __ key causes the test switching on The pressure of the G key ends the test Setting of the current time Time format hh mm ss 00 00 00 23 59 00 2 6 kad S g S Q D g 6 X Switching the recording on or off At the moment of the recording switching on the transducer erases the previous memorised values Table 1 continuation On recording switched on Off recording switched off Time of the recording start Time format hh mm ss 00 00 00 23 59 59 Date of the recording start Date format dd mm yy This is an information parameter It does not serve to define the date from which the recording is to begin but only to inform when the recording was started 00 00 00 99 99 99 Time interval of the recording Define the time segment and how often the result is to be memorised 00 00 00 99 59 59 23 a Normal High Al gt Low Al 1 Relay switched on 0 Relay switched off State of contacts lower upper Measured value alarm threshold b Normal High Al lt Low Al 1 Relay switched on 0 Re
38. t 5 7 Position of the decimal point 000 lack 001 0 0 010 0 00 011 0 000 100 0 0000 101 automatic decimal point Bit 4 Signalling of the upper overrunning of the range 0 normal work 1 range overrunning Bit 3 Signalling of the lower overrunning of the range 0 normal work 1 range overrunning Bit 2 Relay alarm 2 state 0 switched off 1 switched on 44 Bit 1 Relay alarm 1 state 0 switched off 1 switched on Bit 0 Individual characteristic 0 individual characteristic switched off 1 individual characteristic switched on 7 TECHNICAL DATA INPUTS Pt100 Pt500 Pt1000 Cu100 Ni100 Thermocouple J Fe CuNi Thermocouple K NiCr NiAl Thermocouple N NiCrSi NiSi Thermocouple E NiCr CuNi Thermocouple R PtRh13 Pt Thermocouple S PtRh10 Pt Thermocouple T Cu CuNi Resistance measurement Resistance measurement Voltage measurement Voltage measurement Current measurement Current measurement Current flowing through the RTD 200 850 C 200 850 C 200 850 C 50 180 C 60 180 C 100 1200 C 100 1370 C 100 1300 C 100 900 C 0 1760 C 0 1760 C 100 400 C 0 400 Q 0 40000 10 70 mV input resistance gt 9 MQ 0 3 V 0 10 V 0 200 V 0 600 V input resistance gt 4 2 MQ 0 5 mA 0 20 mA input resistance lt 4 Q 0 1 A
39. tandard value no point KI In Y LCD Xo4 In Yo LCD 0 Low All Low Al2 High Al1 High Al2 Type Al1 Type Al2 DelayAl1 DelayAl2 Hold All Hold Al2 X1 LCD Y1 Out X2 LCD Y2 Out Baud 9600 Mode RTU 8N2 Address 1 Security 0 Time 00 00 00 Memory Off StartMem 00 00 00 DateMem 70 01 01 Interval 00 15 00 6 RS 485 INTERFACE PU12 digital programmable transducers have a serial link in the RS 485 standard for the communication in computer systems and with other devices fulfilling the Master function An asynchronous character MODBUS communication protocol has been implemented on the serial link The transmission protocol describes the manners of information change between devices through the serial link 6 1 Manners of the serial interface connection The RS 485 standard allows the direct connection up to 32 devices on a 1200 m long single serial link 27 In order to connect a greater number of devices it is necessary to use additional intermediary separating systems The leading out of the interface line is given in the transducer service manual To obtain a correct transmission it is necessary to connect the lines A and B in parallel to their equivalents in other devices The connection must be carried out by means of screened conductors The screen must be connected to the protective terminal in a single point The GDN line serves to the extra protection of the interface line in ca
40. ter Ni100 60 180 C Thermocouple J Fe CuNi 100 1200 C Thermocouple K NiCr NiAl 100 1370 C Thermocouple N NiCrSi NiSi 100 1300 C Thermocouple E NiCr CuNi Thermocouple R PtRh13 Pt 100 900 0 1760 C Thermocouple S PtRh10 Pt 0 1760 C Thermocouple T Cu CuNi 100 400 C Resistance measurement up to 400 Q 0 400 Q Resistance measurement up to 4 kQ 0 4000 Q Voltage measurement 10 70 mV 10 70 mV Voltage measurement 0 3 V Ae V Voltage measurement 0 10 V 10 V Current measurement 0 5 mA 5 MA Current measurement 0 20 mA 20 mA Voltage measurement 0 200 V 200 V Voltage measurement 0 600 V 600 V Current measurement 0 1A AYA Current measurement 0 5A 5 A on order CODING EXAMPLES Transducer with a basic range P12U 2 16 3 1 0 00 8 code means The execution of a P12U transducer with following requirements 2 with a display 16 programmed by the manufacturer to the input signal 0 10 V 3 analogue current output 4 20 mA 1 supply voltage 85 253 V a c d c 0 socket screw plug terminals 00 standard execution 8 without an extra quality inspection certificate Transducer with a measuring sub range P12U 1 05 1 1 0 00 8 code
41. tion mode Example recording of 2 registers starting from the register which address is 1DBDh 7613 Request Register Number of ee registers Number Value for the register Value for the register Checksum Hi Lo Lo of bits 1DBD 7613 1DBE 7614 2 LL Oo Response Register Register Number of Number of Checksum Function address address registers registers Hi Lo Hi Lo 01 10 1D BD 00 02 Device address Report identifying devices code 11h Request Device Checksum address Funolian CRC 01 11 CO 2C Response Device Function Number Device Field depending the Checksum address of bits identifier type of device X 11 08 X XXXXXX 30 Device address depending on the set value Function Number of function 0x11 Number of bits 0x08 Device identifier 0x71 P12H 0x72 P12S 0x74 P12U 0x73 P120 0x79 P12P Device state OxFF Field depend on the device type XXXXXX Device name transmitted as an ASCII character and defines the type of transducer H 0x48 48 XXXXX S 0x53 53 XXXXX U 0x55 55 XXXXX O 0x4F 4FXXXXX P 0x50 50 XXXXX Analogue output field depending on the type of the analogue output 0x00 voltage analogue output X 00 X X X X 0x01 current analogue output X 01 X X X X Nr of the software version software version implemented into the transducer XX____ 4 byte variable of the floating type Checksum 2
42. ucer begins to deduct the time from the beginning 16 The transducer does not communicate with the computer through the RS 485 interface 90 Check if the interface conductors were cor rectly connected A B GND Then check the setting of the interface in the program ming matrix Mode Baud Address These parameters must be the same as in the used software 17 The transducer does not Check whether the PD14 programmer was communicate with the computer correctly connected Check if in the used through the PD14 programmer software the proper communication port was chosen The programmer works only with one transducer socket 9 EXAMPLES OF P12U TRANSDUCER PROGRAMMINGS Example 1 Programming of the individual characteristic We want to program such that to the value 1 00 mA will correspond the value 1 00 on the display to the value 2 00 mA will correspond the value 50 00 on the display to the value 3 00 mA will correspond the value 200 00 on the display to the value 10 00 mA will corresp ond the value 200 00 on the display to the value 12 00 mA will correspond the value 170 00 on the display to the value 20 00 mA will correspond the value 80 00 on the display 6 points of the individual characteristic one must e enter into the programming mode and choose the D_P parameter responsible for the decimal point Set the decimal point on 00000 choose the Char in parameter an
43. use a defective transducer work The automatic compensation is switched off at the choice of Pt1000 and Pt500 sensors and resistance measurement up to 4 KO Connect the signal only in a two wire system In case of the display individual characteristic connection the result on the display is converted linearly according the introduced Xn In and Yn LCD parameters In case of the analogue output individual characteristic connection the mea surement result is linearly converted according the introduced X1 2 LCD and Y1 2 Out parameters The transducer currently controls the value of the presently introduced parameter In case when the introduced value overruns the upper or lower change range given on the table 1 the transducer will not carry out the parameter recording In case of the Input type change a simultaneous change of the unit and decimal point follows optimally for the given input The recording switching off follows in following cases switching off the recording from the programming matrix change of the input type setting Cnt 0 and at the renewed connection of the transducer to the mains Standard parameters of the P12U transducer Table 2 Parameter description Standard value Input Pt100 Function Off Compens Manual 0 DP 0000 0 Cnt Unit Char In n number of points of the individual characteristic 26 Standard parameters of the P12U transducer Table 2 continuation Parameter description S
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