Home

English - BD|SENSORS

Contents

1. Register Write Range Register description mbtO parameter in rS menu maximum delay between 27h Yes 0 99 received frames 0 no delay checking 1 99 maximum delay expressed in seconds 28h Yes 0 1 AL parameter in DEEP menu 0 off 1 on 29h Yes 0 1 R1 parameter in DEEP menu 0 off 1 on 2Ah Yes 0 1 R2 parameter in bEEP menu 0 off 1 on 2Bh Yes 0 1 R3 parameter in bEEP menu 0 off 1 on 2Ch Yes 0 1 R4 parameter in bEEP menu 0 off 1 on ud us Loses bsp esi sen Bot M M brightness Ma sa su oe ilies 30h Yes 999 9999 SEtP parameter in rEL1 menu no decimal point included 31h Yes 999 999 HySt parameter in rEL1 menu no decimal point included modE parameter in rEL1 menu 32h Yes 0 3 0 noAC mode 1 on mode 2 oFF mode 3 in mode 4 out mode 5 modb mode oh Yes 0 999 orth of minutes depend on unit parameter register no 35h LA DNE MM a ee ee 35h Yes 0 4 unit parameter in rEL1 menu 0 seconds 1 minutes 36h Yes 0 2 AL parameter in rEL1 menu 0 no changes 1 on 2 off 37h Yes 999 9999 SEt2 parameter in rEL2 menu no decimal point included 38h Yes 999 9999 SEtP parameter in rEL2 menu no decimal point included 39h Yes 999 999 HySt parameter in rEL2
2. 50 0 X2 10 0 Y2 830 0 X6 30 0 Y6 30 0 X7 40 0 Y7 80 0 X10 90 0 Y10 900 0 X11 100 0 Y11 820 0 Additionally all other points must to be defined and stored in the device memory a lin 10 mA and In 0 375 The segment defined by X6 30 0 and X7 40 0 for this In will be selected Accordingly to expressions given for user defined characteristic see page 37 X6 PL 30 Y6 PL 30 X7 PH 40 Y7 PH 80 and lp 0 3 the displayed value b J W I 1 X JEVPRO E PE rr x 100 Y PL X PH X PL 80 30 0 375 0 3 X 80 30 x 100 30 67 40 30 b lin 2 5 mA and In 0 0938 because of the normalized In value is lower than 0 the segment defined by X1 and X2 will be selected X1 PL 0 Y1 PL 50 X2 PH 10 Y2 PH 30 and lp O For these values the displayed value W 69 C lin 20 5 mA and In 1 0313 because of the normalized In value is higher than 1 the segment defined by X10 and X11 will be selected and X10 PL 90 Y10 PL 900 X11 PH 100 Y11 PH 820 and lp 0 9 for these values the displayed value W 795 Example 7 Current output value calculation Let the current output parameters be modE on OUtL 100 OUtH 200 Lo r 5 0 Hi r 5 0 Parameters Lo r and Hi r define working range of current output to 3 8 21 mA Ou
3. 7 3 Menu description password checking If some password different from 0000 is set then every enter to main menu follows the entering of password If entered password is correct then first menu position will be displayed else warning Err and unit returns to measurement mode I Due to problem with direct displaying of m and K letters they are exchanged with special signs m for m and i for K respectively However in user manual letters m and K are used to make it more readable example modE tc K SENSORS pressure measurem ent CIT 350 7 3 1 rEL1 menu This menu allows to configure the operation mode of relays and LEDs marked R e g R1 If there are few relay outputs available then every output has its own configuration menu e g menu rEL2 for relay LED R2 Principle of the relays operation is described in paragraph CONTROL OF THE RELAY OUTPUTS Isp e SEP SEU HYSt The relay outputs and LEDs named HR can be controlled depend on both the current value and the peak value when peak detection is active of the input signal If device is not equipped with one or more relay outputs menus refer to this relays are available but apply to LED indicators only In such case LEDs indicates exceeding of particular thresholds first threshold of the relay range 999 9999 Negative values can be input by selecting a sign on f
4. NS Fig 4 1 Mounting hole dimensions 16 mm rre co A 12 10 mm i N LN Fig 4 2 Installing of brackets and dimensions of connectors BDISSENSOHS pressure measuremen CIT 350 115 mm Fig 4 3 Minimum distances when assembly of a number of units 4 3 Connection method Caution N Installation should be conducted by qualified personnel During installation all available safety requirements should be considered The fitter is responsible for executing the installation according to this manual local safety and EMC regulations N he unit is not equipped with an internal fuse or power supply circuit breaker Because of this an external time delay cut out fuse with minimal possible nominal current value must be used recommended bipolar max 2 A and a power supply circuit breaker located near the unit In the case of using a monopolar fuse it must be mounted on the phase cable L The power supply network cable diameter must be selected in such a way that in the case of a short circuit of the cable from the side of the unit the cable shall be protected against destruction with an electrical installation fuse Wiring must meet appropriate standards and local regulations and laws n order to secure against accidental short circuit the connection cables must be terminated with appropriate insulated cable tips Tighten the clamping screws The recommended tightening torque is 0 5 Nm
5. menu no decimal point included modE parameter in rEL2 menu 3Ah Yes 0 3 0 hoAC mode 1 on mode 2 oFF mode 3 in mode 4 out mode 5 modb mode en Des Bacay eae Suec eiie uni it se ee E ICE o Kk v dee O ee a aa 3Dh Yes 0 4 unit parameter in rEL2 menu 0 seconds 1 minutes 3Eh Yes 0 v2 AL parameter in rEL2 menu 0 no changes 1 on 2 off 3Fh Yes 999 9999 SEt2 parameter in rEL2 menu no decimal point included 40h Yes 999 9999 SEtP parameter in rEL3 menu no decimal point included 2ssure measurement 2 gt pem jj j h 2 N 1 i E i m Cc O if D Ems eJ IN Ti e gt CIT 350 Register Write Range Register description 41h Yes 999 999 HySt parameter in rEL3 menu no decimal point included modE parameter in rEL3 menu 42h Yes 0 3 0 noAC mode 1 on mode 2 oF F mode 3 in mode 4 out mode 5 modb mode t on parameter in rEL3 menu expressed in tenth of seconds or Ten Ves Sanaa tenth of minutes depend on unit parameter register no 45h toFF parameter in rEL3 menu expressed in tenth of seconds Ten ve Mia or tenth of minutes depend on unit parameter register no 45h 45h Yes 0 4 unit parameter in rEL3 menu a 0 seconds 1 minutes
6. BO SENSORS pressure measurement Operating manual Process Display with Bargraph Contacts and Analogue Output U I Input CIT 350 Read the user s manual carefully before starting to use the unit Producer reserves the right to implement changes without prior notice BD SENSORS GmbH BD Sensors Strake 1 Telefon 49 0 92 35 98 11 0 www bdsensors com D 95199 Thierstein Telefax 49 0 92 35 98 11 11 info bdsensors de CIT 350 Table of Contents 1 Basic requirements and user Safety 2 cccceccceecceeeeeeeeeeceeeceeseeeeeeeseeeseeseesseeeeeeseeeseeeseeeges 4 2 DEC ET WAO ie I MINIM IU T ANAON E E t T AE FRG S SONY E A E A E E E E E E TT T 4 9 CODBeclon THOITIOGQ aee a a e a E E E E EE EE 9 zs MR IRSE UU TT 15 OF PONE Dalle OES CDU ases tctbepbet REIR KERERONNDE RUMPIT REPRE REITIRUNRPRON TUI RUN TREE TEEER MR 15 SM I HIFIGIOIC OL OC ia ON create eee E Omm 16 6 1 Measurement MOE oscar DREPEINVISUIN I TII INVETU UNI DTI D UP IM MUR UI IECUR UP DOVER CMM UPC OCHNIUE 16 6 2 Detection of the peak values ccccccccecceeceeceeteceeseceeeeeeeaeseeceueteeeeeeseesaeeeeeeeteeseeeeaes 17 6 3 Control of the relay outputs leeesesssessesssesseeeeeen enne nnne nnne nnn nnn nnn nnn 18 5 93 One Mreshold MOQG uaesaneonttams b ptt EPREPIAREUNN PUE PREPUR C PREDPINERREBURNTEREOURUPPSKEEERIR ANN UR TE CERED 20 6 3 2 Two thresholds MOCEC ccccceccecceeceeceeceeceececeeeeeeaesaeeeeeseeseeseeseeseeseece
7. LIST type owitch parameters can be described as a sets of values a lists out of which only one of the options available on the list can be selected for the given parameter Options of switching parameter are selected using v keys Short pressing of ENTER causes in displaying of the acknowledge question SEt If key ENTER is pressed again the changes are accepted stored in EEPROM end the edition process finished Pressing the key ESC after SEt causes in cancelling of made changes and returning to menu Functions of buttons when editing numeric and switching parameters While editing numeric parameter NI e change of current flashing digit e Slide change of value acceleration deceleration direction change While editing switch parameter selection of switch parameter If numerical parameter is being edited a short press of ENTER button ENTER change edited position A long press of ENTER button at lest 2 sec causes of display a SEt ask which allow user to make sure if change of the parameter value is correct If switch parameter is being edited a short press of ENTER button causes of display a SEt ask When ENTER button is pressed again while SEt is displayed the new value of the parameter is stored in EEPROM memory Pressing this button operator can cancel the changes done up to now if they MENU were not approved by ENTER button after the SEt ask and come back to menu
8. X Y coordinates may be defined for any free point The pair is free it means that particular point is not defined if X coordinate of this point is equal 8000h After writing both X and Y coordinate the point is defined and used in calculation of result The coordinates of any point can be changed at any time www bdsensors com CIT 350 12 2 Transmission errors description lf an error occurs while write or read of single register then the device sends an error code according to Modbus RTU specifications example message no 1 Error codes 01h illegal function only functions O3h O6h and 10h are available 02h illegal register address O3h illegal data value 08h no write permission see mbAc parameter AOh exceed of upper border of input range 60h exceed of lower border of input range AOh and 60h codes can appear only during reg 01h is reading by O3h function read of a single register 12 3 Examples of query answer frames Examples apply for device with address 1 All values are represent hexadecimal Field description ADDR FUNC REG H L COUNT H L BYTEC DATA H L CRC LH Device address on modbus network Function code Starting address address of first register to read write Hi and Lo byte No of registers to read write Hi and Lo byte Data byte count in answer frame Data byte Hi and Lo byte CRC error check Hi and Lo byte 1 Read of the displayed value measurement CIT
9. 10V Fig 4 5 Terminals description relay outputs no current output version A Bons 24V 5 10 RS 485 supply optional ACTIVE 1mex 100m SND DATA Pepe one on version pum 2 Uo 7 oana GA DTI R1 R2 optional optional 0A bns 0 2 10V Fig 4 6 Terminals description relay outputs device with current output version 11 www bdsensors com CIT 350 24V 5 10 RS 485 optional Imax 100MA SND DATA Power supply depending on version 4 Uo M d I2 GA 10 11 12 13 14 15 P nb rd uas 32 n c 44 4 n c OC1 OC2 OC3 optional optional optional 0 4 20m OC1 OC4 Umax 30v 0c Imax 30mA Pmax 100mW 0 4 5V 0 2 10V Fig 4 7 Terminals description OC type outputs Fig 4 9 Connection of S wire current converters BD SENSORS pressure measurement 13 CIT 350 internally connected Depending on version 85 230 260V AC DC or 19 24 50V DC 16 24 35V AC L N Fig 4 11 Connection of power supply and relays Contacts of relay outputs are not equipped with spark suppressors While use the relay outputs for switching of inductive loads coils contactors power relays electromagnets motors etc it is required to use additional suppression circuit typically capacitor 47 nF min 250 Vac in series with 100R 5 W resistor connected in parallel to relay terminals or better directly on the load In consequence of u
10. 46h Yes 0 2 AL parameter in rEL3 menu O no changes 1 on 2 off 47h Yes 999 9999 SEt2 parameter in rEL3 menu no decimal point included 48h Yes 999 9999 SEtP parameter in rEL4 menu no decimal point included 49h Yes 999 999 HySt parameter in rEL4 menu no decimal point included modE parameter in rEL4 menu 4Ah Yes 0 3 0 hoAC mode 1 on mode 2 oFF mode 3 in mode 4 out mode 5 modb mode t on parameter in rEL4 menu expressed in tenth of seconds or SER ue Eee tenth of minutes depend on unit parameter register no 4Dh toFF parameter in rEL4 menu expressed in tenth of seconds or il ue epee tenth of minutes depend on unit parameter register no 4Dh ADh Yes 0 4 unit parameter in rEL4 menu u O seconds 1 minutes 4Eh Yes 0 2 AL parameter in rEL4 menu O no changes 1 on 2 off 4Fh Yes 999 9999 SEt2 parameter in rEL4 menu no decimal point included 50h Yes 0 4 modE parameter in HOLd menu type of detected changes 0 peaks 1 drops 51h Yes 0 9999 PEA parameter in HOLd menu minimum detectable change no decimal point included 52h Yes 1 199 imE parameter in HOLd menu maximum peaks or drops display time expressed in seconds HdiS parameter in HOLd menu Sen oes eed 0 EAL mode 1 HOLd mode H r1 parameter i
11. Table 8 2 shows possible combinations Value of FCoL Bargraph colours measurement oLAc The bargraph off rEE green black red rEd red black green gr green red orange Jg red green orange Jg black green red Jor black red green Fig 8 2 Possible combinations of the bargraph colours Pr1P these parameters allows to define which one of the thresholds of the PrAP relay will be showed on the bargraph 31 www bdsensors com CIT 350 OFF noone thresholds will be marked 1St threshold refer to SEtP will be marked only 2nd threshold refer to SEt2 will be marked only botH both thresholds will be marked P1AL these parameters allows to define the critical situation of the bargraph PAAL depend on state of particular relays IJ noC particular relay do not causes by critical situation on the bargraph morE critical situation will occur when measurement value will be greater than threshold value SEtP of this relay LESS critical situation will occur when measurement value will be lower than threshold value SEtP of this relay on critical situation will occur when particular relay will be closed OFF critical situation will occur when particular relay will be opened ts The critical situation of the bargraph will occur in case when any of defined situation occur The critical situation of the bargraph is signalized by inverting of colours red to gre
12. 0 DATA L 4 new baud rate 19200 baud I Device do not reply to BROADCAST type messages 51 www bdsensors com CIT 350 5 Read of the registers 1 2 and 3 in one message example of reading a number of registries in one frame ADDR FUNC REG H L COUNT H L CRC L H 01 03 00 01 00 03 54 OB COUNT L the count of being read registers max 16 The answer ADDR FUNC BYTE C DATA H1 L1 DATA H2 L2 DATA H3 L3 CRCL H 01 03 06 00 OA 00 00 00 01 78 B4 DATA H1 L1 reg 01h 10 displayed value 1 0 DATA H2 L2 reg 02h 0 no errors DATA H3 L3 reg O3h 1 decimal point position 0 0 There is no full implementation of the Modbus Protocol in the device The functions presented above are available only JISENSORS pressure measurem ent 12 Default and user s settings list CIT 350 Parameter Description Default value User s value pion Parameters of relay R1 operation rEL1 menu SEtP Relay R1 threshold 20 0 24 SEC Relay R1 second threshold 30 0 24 HYSt Hysteresis of relay R1 0 0 24 modE Operation mode of relay R1 in 24 t on Turn on delay of relay R1 0 0 25 toFF Turn off delay of relay R1 0 0 25 unit Unit of t on toFF parameters of relay R1 SEC 25 AL Reaction for cr
13. 350 device address 01h ADDR FUNC REG H L COUNT H L CRC L H 01 03 00 01 00 01 D5 CA a The answer we assume that the measure result is not out of range ADDR FUNC BYTEC DATA H L CRC L H 01 03 02 00 m F8 04 DATA H L displayed value 255 no decimal point Decimal point position can be read from reg O3h Emi T LE LJ TELS mi ISOR CIT 350 b The answer if an error occur ADDR 01 FUNC 83 ERROR 60 CRC L H 41 18 ERROR error code 60h bottom border of the measurement range is exceeded 2 Read of device ID code ADDR FUNC REG H L COUNT H L CRC L H 01 03 00 21 00 01 D4 00 The answer ADDR FUNC BYTEC DATA H L CRC L H 01 03 02 20 A1 60 3C DATA identification code 20A1h 3 Change of the device address from 1 to 2 write to reg 20h ADDR FUNC REG H L DATA H L CRC L H 01 06 00 20 00 02 09 C1 DATAH 0 DATA L new device address 2 The answer the same as the message ADDR FUNC REG H L DATA H L CRC L H 01 06 00 20 00 02 09 C1 4 Change of baud rate of all devices connected to the net BROADCAST message ADDR FUNC REG H L COUNT H L CRC L H 00 06 00 22 00 04 29 D2 DATAH
14. Units in which a defect was stated must be disconnected and submitted for repairs at an authorized service centre In order to minimize fire or electric shock hazard the unit must be protected against atmospheric precipitation and excessive humidity Do not use the unit in areas threatened with excessive shocks vibrations dust humidity corrosive gasses and oils pem 2g ISE NSO Ji HO sure me U Ki hits 239 CIT 350 Do not use the unit in explosion hazard areas Do not use the unit in areas with significant temperature variations exposed to condensation or icing Do not use the unit in areas exposed to direct sunlight Make sure that the ambient temperature e g inside the control box does not exceed the recommended values In such cases forced cooling of the unit must be considered e g by using a ventilator 2 General characteristics The CIT 350 meter is equipped with one current input 0 20 4 20 mA and one voltage input 0 5 1 5 0 10 2 10 V Current input has additionally overcurrent protection circuit which protects standard resistor The selection of active input is realised by software and selected input can be changed at any time Additionally the CIT 350 allows user to select a conversion characteristic of several kinds linear square square root and user defined max 20 points length The measured value is displayed simultaneously on 4 digit LED display and 20 point
15. V sub menu or parameter is displayed Operation of ENTER button depend on present menu position ENTER e if the name of some sub menu is displayed enter this sub menu name of the first parameter or next level sub menu is displayed e if the name of some parameter is displayed enter the edition of this parameter present value of the parameter is displayed ESC MENU button allow user to exit present menu level and goes to upper MENU level menu or measurement mode 3 After about 1 min since last use of the buttons device exits the menu mode and returns to the measurement mode only if no parameters are in editing mode 71 2 Parameters edition To start edition of any parameter user should select name of desired one using v buttons and then press ENTER 7 2 1 Numeric parameters digit change mode Numerical parameters are displayed as decimal numbers The mode of its new value entering depends on chosen edit method see parameter Edit In mode by digit Edit dig pressing one of the keys or v causes change of current position flashing digit or the sign Short pressing of the ENTER button causes change of the position digit Press ENTER at least 2 seconds to accept the changes after that question SEt is displayed and user must to confirm or cancel the changes To conform changes and story it in EEPROM press ENTER button shortly after SEt is displayed To cancel the
16. Yes 999 9999 OUtH parameter in OUtP menu no decimal point included A3h1 Yes 0 499 Lo r parameter in OUtP menu expressed in 0 1 A4h1 Yes 0 99 Hi r parameter in DUtP menu expressed in 0 1 ABh Yes 0 3 AL parameter in OUtP menu current output value on critical E exception 0 no change 1 22 1 mA 2 3 4 mA 3 0 mA BOh Yes 0 14 Parameter tyPE of sub menu bAr display mode of the bargraph O line 1 point Parameter FCol of sub menu bAr colours of the bargraph O B1h Yes 0 6 bargraph off 1 option grEE 2 option rEd 3 option g r 4 option r g 5 option b g 6 option b r B2h Yes 999 9999 Parameter Lo C of sub menu bAr no decimal point B3h Yes 999 9999 Parameter Hi C of sub menu bAr no decimal point Parameter Pr1P of sub menu bAr relay s R1 thresholds B4h Yes 0 3 markers 0 not showed 1 option 1St 2 option 2nd 3 option botH Parameter Pr2P of sub menu bAr relay s R2 thresholds markers B5h Yes 0 3 0 not showed 1 option 1St 2 option 2nd 3 option botH Parameter Pr3P of sub menu bAr relays R3 thresholds markers B6h Yes 0 3 0 not showed 1 option 1St 2 option 2nd 3 option botH Parameter PrAP of sub menu bAr relays R4 thresholds markers B h Yes 0 3 0 not showed 1 option 1St 2 optio
17. consideration 4 1 Unpacking After removing the unit from the protective packaging check for transportation damage Any transportation damage must be immediately reported to the carrier Also write down the unit serial number on the housing and report the damage to the manufacturer Attached with the unit please find user s manual assembly brackets 2 pieces 4 2 Assembly he unit is designed for mounting indoor inside housings control panel switchboard assuring appropriate protection against electric impulse waves Metal housing must be connected to the grounding in a way complying with the governing regulations Disconnect the power supply prior to starting assembly Check the correctness of the performed connections prior to switching the unit on In order to assembly the unit a 43 x 93 mm mounting hole Figure 4 1 must be prepared The thickness of the material of which the panel is made must not exceed 5 mm When preparing the mounting hole take the grooves for catches located on both sides of the housing into consideration Figure 4 1 Place the unit in the mounting hole inserting it from the front side of the panel and then fix it using the brackets Figure 4 2 The minimum distances between assembly holes axes due to the thermal and mechanical conditions of operation are 115 x 67mm Figure 4 3 7 www bdsensors com CIT 350 ee FP 1A f P U c SS CH HOD MXM
18. especially important characteristics of the unit Read any information regarding this symbol carefully 1 Basic requirements and user safety The manufacturer is not responsible for any damages caused by inappropriate installation not maintaining the proper technical condition and using the unit against its destination Installation should be conducted by qualified personnel During installation all available safety requirements should be considered The fitter is responsible for executing the installation according to this manual local safety and EMC regulations The unit must be properly set up according to the application Incorrect configuration can cause defective operation which can lead to unit damage or an accident If in the case of a defect of unit operation there is a risk of a serious threat to the safety of people or property additional independent systems and solutions to prevent such a threat must be used The unit uses dangerous voltage that can cause a lethal accident The unit must be switched off and disconnected from the power supply prior to starting installation of troubleshooting in the case of malfunction Neighbouring and mating equipment must meet the requirements of appropriate standards and regulations concerning safety and be equipped with adequate anti overvoltage and anti interference filters Do not attempt to disassemble repair or modify the unit yourself The unit has no user serviceable parts
19. for critical situation of relay R4 oFF 25 Activation of acoustic signal menu bEEP AL Activation of acoustic signal by critical situation OFF 26 r1 Activation of acoustic signal by relay R1 oFF 26 r2 Activation of acoustic signal by relay R2 oFF 26 r3 Activation of acoustic signal by relay R3 oFF 26 r4 Activation of acoustic signal by relay R4 oFF 26 Configuration of measurement input inPt menu tYPE Input type Pt 1 26 CHAr Conversion characteristic mode Lin 26 FiLt Filtering ratio 0 26 Pnt Decimal point position 0 0 26 LoC Minimum displayed value for nominal range 000 0 2f Hi C Maximum displayed value for nominal range 100 0 2f Lor Extension of the bottom of the nominal input range 5 0 96 28 Hir Extension of the top of the nominal input range 5 0 96 28 Active current output configuration OUtP menu Omod Current output mode 0 20 mA 29 OUIL e oo 0 mA or 4 mA depend Omod 0 0 29 OUtH Display value for 20 mA current output 100 0 29 Lor oo of the bottom of the nominal output 5 0 29 Hir Extension of the top of the nominal output range 5 0 96 29 AL Current output value on critical exception 22 1 mA 30 Options connected with the bargraph bAr menu tYPE Display mode of the bargraph LinE 30 FCoL Colours of the bargraphs gr 30 PrP Markers of the thresholds of relays R1 ISP 30 Pr2P Markers of the thresholds of relays R2 ISP 30 Pr3P Critical situation definition for relay R3 OFF 30 Pr4P Critical situation def
20. input current in mA and In normalized result 3 lf measured value exceeds the nominal input range 0 20 mA or 4 20 mA and do not exceed the permissible input range then received normalized In result will exceed 0 1 range e g input range 4 20 mA input current 3 mA the normalized result is equal 0 0625 and for input current 22 mA the normalized result is equal 1 125 In such cases presented expressions are still correct 11 1 Additional calculations used conversion characteristic The manner of the additional computation of the displayed result depends on selected conversion characteristic All presented charts are connected with the input range 4 20 mA SENSORS pressure measurem ent CIT 350 11 1 1 Linear characteristic The normalized result is converted by fixed coefficients determined by Lo C and Hi C parameters when the normalized results is equal 0 then value Lo C is displayed and when the normalized results is equal 1 then value Hi C is displayed Expression presented below shows the manner of result calculation W In x H iC Lo C Lo C where W means the displayed value I The value of the Lo C parameter can be higher than the value of Hi C parameter In such a case for an increasing value of input current the displayed value decreases Hi C Loc Loc Hi C 0 i 8 12 16 20 0 8 12 16 20 Input current mA Displayed value Displayed value
21. manual ESC MENU Functions e enter to main menu press and hold by at least 2 sec e exit the current level and enter to previous menu or measure mode e cancel the changes made in parameter being edited Symbol used in the manual ENTER Functions e Start to edit the parameter e enter to the sub menu e confirmation of changes made in parameter being edited Symbol used in the manual 4 v Functions change of the present menu ESC MENU e modification of the parameter value e change of the display mode 6 Principle of operation After turning the power supply on device ID and software version are showed on the display next the controller goes to the measurement mode 6 1 Measurement mode In the measure mode the measurement results converted over selected characteristic are displayed on the LED display The measurement range equal to the nominal range is called nominal measurement range and the measurement range equal to the extended nominal range is called permissible measurement range Figure 6 1 6 2 Lo r parameter Hi r parameter ua nominal measurement range d gt 9 a 4 4 mA 20mA permissible measurement range Fig 6 1 Definitions of measurements ranges in mode 4 20 mA If the result of measurement exceeds the permissible measurement range warning Hi or Lo is disp
22. menus refer to this relays are available but apply to LED indicators only In such case LEDs indicates exceeding of particular thresholds Modes of the control can be changed depend on the values of parameters SEtP SEt2 HYST modE ton toFF unit and AL Depend on modE parameter relays can be not used or controlled over one or two thresholds values If one threshold is used Figure 6 4 the relay can be turned on modE on or off modE oFF when the input signal value is contained in zone A If two thresholds are used Figure 6 5 the relay will be turned on when value of input signal is contained in zone A modE in or zone B modE out and turned off if the signal is contained in the second one BO SENSORS pressure measu rement IS 19 CIT 350 state of relay LED p SEtP parameter measure HYSt parameter Fig 6 4 One threshold control of the relay LED outputs state of relay LED Y or SEt2 measure S i suni Fig 6 5 Two threshold control of the relay LED outputs The relay outputs and LEDs named R can be controlled depend on both the current value and the peak value when peak detection is active of the input signal www bdsensors com CIT 350 6 3 1 One threshold mode Figure 6 6 presents the principle of relay outputs operation for one threshold mode and an example values of other parameters measured dis
23. set to values from 0 to 99 seconds The value 0 means that the time will be not controlled this parameter defines minimal additional delay between the Modbus message and the answer of the device received and sent via RS 485 interface This additional delay allows the device to work with poor RS converters which do not works properly on baud rates higher than 19200 This parameter can be set to one of values Std answer as quick as possible no additional delay 10c 20c answer delayed of 10 20 50 100 of 200 chars respectively boll where one character time depends on selected baud rate 200c 3 Inthe most cases parameter rESP should be set to Std no additional delay Unfortunately for some third party RS converters rESP should be adjusted experimentally Table 8 3 contains most frequently used values 57 6 115 2 50c bAud parameter 38 4 rESP parameter 10c 20c Fig 8 3 Settings of rESP parameter BO SENSORS pressure measu rement 35 CIT 350 8 0 8 Edit parameter This parameter allows to change the edition mode of numerical parameters dig the change to by digit mode Slid slide change mode 8 0 9 dEFS parameter This setting allows to restore the factory settings of the device To get the access to this option special password is required 5465 next the device displays acknowledge question OEt Press ENT
24. the critical situations even if his parameter modE noAC 8 DEEP menu This menu contains options connected with acoustic signal AL ifthis parameter is set to on any critical situation causes by acoustic signal T1 ifthis parameter is set to on activation of relay R1 causes by acoustic signal r2 if this parameter is set to on activation of relay R2 causes by acoustic signal r3 if this parameter is set to on activation of relay R3 causes by acoustic signal r4 if this parameter is set to on activation of relay R4 causes by acoustic signal 3 Acustic signal turned on by e g relay can be turned off by pressing of any button 8 0 1 inPt menu This menu presents the measurement input tYPE CHAr type of the input sensor This parameter can be set to values 0 20 4 20 current inputs O 10 2 10 0 5 1 5 voltage inputs Displayed values are defined by parameters Lo C Hi C or by user defined characteristic points and parameter Pnt this option presents type of the conversion characteristic and can be set to kyl linear When one of those characteristics is chosen ios ee display range is defined by Lo C and Hi C Sqrt square root USEr user defined characteristic Maximal length 20 points Every point is defined by user Adding editing and deleting of points is done by options AddP Ed
25. this option permits user on or prohibits OFF to modify the thresholds of the relays LEDs R1 R4 without knowledge about user password 8 0 7 rS menu This menu is connected with RS 485 interface and sets his properties Addr this parameter defines the address of the device accordingly to Modbus protocol It can be set in range from O to 199 If the value O is set then device responds to frames with address 255 FFh 33 www bdsensors com CIT 350 bAud mbAc this parameter determines RS 485 interface baud rate It can be set to one of 8 possible values 1 2 2 4 4 8 9 6 19 2 38 47 57 6 115 2 which respond to the baud rates of 1200 2400 4800 9600 19200 38400 57600 and 115200 bit sec respectively this parameter sets the access to the configuration registers of the device Possible values on configuration registers can be set via RS 485 interface OFF configuration registers can not be set via RS 485 interface I The access to registers no 04 h i 05 h cannot be denied by mbAc parameter see mbtO rESP LIST OF REGISTERS this parameter defines maximal time sec between following frames received by the device If the delay will be greater than the value of mbtO parameter the relays and the current output which are controlled via RS 485 interface will set to alert state see OUtP menu rEL1 menu description Parameter mbtO can be
26. to numerical parameters edition Coordinate X defines the percentage ratio of input current to selected current range The X range 99 9 199 9 Coordinate Y defines displayed value for particular X value The Y value can be changed in range 999 9999 decimal point position depend on Pnt parameter menu inPt 3 User cannot enter two points with the same value of X coordinate If user trays to do it Err warning is displayed To modify any defined point use EdtP option e To distinguish X and Y coordinates if X coordinate is displayed an additional decimal point on utmost right position is displayed e f user defined characteristic is selected and if number of defined points is lower than 2 then warning Errc is displayed in measurement mode dELP this option allows user to delete any of the points of the user defined characteristic After selection current number of points of the user defined characteristic is displayed for about approx 1 5 sec After that device waits for selection of point being deleted by v buttons The short pressing of ENTER button causes by switching between X and Y value of the displayed point The long press press and hold at least 2 sec of ENTER button causes by displaying dEL ask If ENTER button is pressed again current point is deleted and new updated number of points of the user defined characteristic is displayed EdtP this option allows use
27. user password knowledge Permission to changes of relay R4 threshold A r4 on 32 without of the user password knowledge RS 485 interface configuration menu rS Addr Device address 0 32 bAud Baud rate 9 6 33 mbAc Permission to changes of configuration registers on 33 mbtO Maximum delay between received messages 0 33 rESP Additional delay of answer transmission Std 33 Configuration of numerical parameters edition Edit Numerical parameters edit mode dig 34 55 www bdsensors com CIT 350 13 Disposal The device must be disposed according to the European Directives 2002 96 EC and 2003 108 EC on waste electrical and electronic equipment Electrical and electronic waste equipment may not be disposed by domestic refuse 14 Warranty conditions The warranty conditions are subject to the legal warranty period of 24 months from the date of delivery In case of improper use modifications of or damages to the device we do not accept warranty claims Furthermore defects due to normal wear are not subject to warranty services SENSORS pressure measurem ent BD SENSORS GmbH BD Sensors Str 1 95199 Thierstein Germany Phone 49 0 92 35 98 11 0 Fax 49 0 92 35 98 11 11 The www bdsensors com addresses of our Distribution Partners are listed on our CIT 350 homepage It is possible to download data sheets operating manuals ordering codes and certificates as
28. 3 2 mA 22 mA Lower border of the range is the result of calculations 4 mA 4 mA x 20 96 and the higher 20 mA 20 mA x 10 96 Example 2 The normalized In result calculation Let the input mode 4 20 mA The normalized In result is calculated accordingly to the expression on page 35 so if lin 10 mA then 10 mA 4 mA 6 mA and this result should be divided by the width of input range 16 mA Finally the normalized result In 6 16 0 375 In case when input current exceeds nominal measurement range calculations are similar For example if input current is equal 2 5 mA then In 2 5 4 16 0 0938 and if input current is equal 20 5 mA then In 20 5 4 16 1 0313 Example 3 The linear characteristic Let the input mode 4 20 mA and parameters Lo C and Hi C equal to 300 and 1200 respectively The calculations will be done for there different input currents from example 2 41 www bdsensors com CIT 350 a lin 10 mA and In 0 375 Accordingly to expression on page 38 for linear characteristic 0 375 x 1200 300 562 and next the Lo C value is added to the result so the displayed value W 562 300 262 b lin 2 5 mA and In 0 0938 W 441 C lin 20 5 mA and In 1 0313 W 1247 R Example 4 The square characteristic Let the input mode 4 20 mA and parameters Lo C and Hi C equal to 300 and 1200 respectively The calculations will be done for there differen
29. ER to acknowledge the restoring of factory settings or ESC to cancel 8 0 10 SErv menu This menu contains the parameters for authorized service only To enter this menu proper service password must be entered Improper settings can causes of damage of the device www bdsensors com CIT 350 8 1 Menu structure Measurement mode Press and hold at least 2 seconds os 4 digit user password entering if it is different from 0000 fasc C Parameter Es Options similar E T to rEL1 menu law Options similar to rEL1 menu i Options similar to rEL1 menu Parameter li edition j m E ea edition CHAr I m ee ee ee ee eee GARS GRE UNS GER eee eee fle E r e o 1B fet o 1 4 E o mu Sio l 4 isi PI I T T T P 1 I 1 1 T I D T 1 T I BR T Ge ee I I T jT f ET See next page BD SENSORS pressure measurement CIT 350 See previous page e tYPE Parameter i a edition FCoL m bn om Parameter 7mm edition HOLd E mode odE L Parameter I edition H i i T s HHHH D Parameter edition J tr CS Parameter edition 4 digit special password entering as amp 3 ST sew www bdsensors com CIT 350 9 The alarm LED Alarm LED AL lights in cases e exceeding of permissible measu
30. F time toFF range 0 99 9 defined with 0 1 sec resolution Unit of this parameter is set by unit parameter 3 If time when the input signal exceeds some border value is shorter than t on or toFF time the relay do not change his state see paragraph CONTROL OF THE RELAY OUTPUTS unit unit of time for t on i toFF parameters Can be set on one of two values min minutes SEC seconds AL this parameter defines the relay reaction when some critical situations occurs noCH relay do not change his state on relay will be turned on OFF relay will be turned off If parameter modE is set to on oFF in or Out the critical situation means that allowable measurement range is exceeded If parameter modE is set to modb the critical situation means communication delay when no data is received longer than mbtO parameter see description rS menu 37 lf option noCH is selected for AL parameter behaviour of the relay may depend on FiLt parameter in some cases If FiLt is set to big value and the input signal drops result value of the measure will change slow causes of turning on or off relay due to thresholds values The critical situation is slowly detected so it is impossible to predict the relay state in that situations BO SENSORS pressure measu rement CIT 350 If parameter AL on the relay will be turned on in
31. Input current mA Fig 11 1 Normal Lo C lt Hi C and inverted Lo C gt Hi C characteristic 11 1 2 Square characteristic The normalized result is squared and further conversion is done as for linear characteristic Conversion is made accordingly with the expression W In x Hi C Lo C Lo C where W means the displayed value Lo C c c D o 2 o EJE ss 25 as e e Loc Hi C 0 4 8 12 416 20 4 8 12 16 20 Input current mA Input current mA Fig 11 2 Normal Lo C Hi C and inverted Lo C Hi C characteristic 39 www bdsensors com CIT 350 11 1 3 Square root characteristic The normalized result is rooted and further conversion is done as for linear characteristic Conversion is made accordingly with the expression W NIn x Hi C Lo C Lo C where W means the displayed value 3 Showed above expression is not valid when normalized result is negative It is possible for 4 20 mode only In this case ln 0 the displayed result is equal Lo C see graphs below E g 83 s 25 25 a a Lo C Hi C 0 4 8 12 16 20 0 4 8 12 16 20 Input current mA Input current mA Fig 11 3 Normal Lo C lt Hi C and inverted Lo C gt Hi C characteristic 11 1 4 User defined characteristic User defined characteristic is defined as set of X Y points Number of the points is variable and may be set from 2 to 20 points which make linear segments see gra
32. Loose screws can cause fire or defective operation Over tightening can lead to damaging the connections inside the units and breaking the thread n the case of the unit being fitted with separable clamps they should be inserted into appropriate connectors in the unit even if they are not used for any connections 9 www bdsensors com CIT 350 Unused clamps marked as n c must not be used for connecting any connecting cables e g as bridges because this can cause damage to the equipment or electric shock If the unit is equipped with housing covers and sealing packing protecting against water intrusion pay special attention to their correct tightening or clamping In the case of any doubt consider using additional preventive measures covers roofing seals etc Carelessly executed assembly can increase the risk of electric shock After the installation is completed do not touch the unit s connections when it is switched on because it carries the risk of electrical shock Due to possible significant interference in industrial installations appropriate measures assuring correct operation of the unit must be applied To avoid the unit of improper indications keep recommendations listed below Avoid common parallel leading of signal cables and transmission cables together with power supply cables and cables controlling induction loads e g contactors Such cables should cross at a right angle Contactor coils
33. ON when the input signal is bigger than lower threshold HYSt and lower than bigger threshold HYSt and turned off when the input signal is contained in the second zone The bigger threshold means bigger one of SEtP and SEt2 thresholds the lower threshold means lower one of SEtP and SEt2 thresholds www bdsensors com CIT 350 out two threshold mode relay is turned ON when the input value is bigger than bigger threshold HYSt and lower than lower threshold HYSt and turned on when the input signal is contained in the second zone The bigger threshold means bigger one of SEtP and SEt2 thresholds the ower threshold means lower one of SEtP and SEt2 thresholds modb the relay is controlled via RS 485 interface independently on the input signal is LEDs light when relays are closed independently of relays mode e When power supply fail unit do not store relays state selected by RS 485 interface t on turn on delay time the relay is turned on with delay equal t on if the input value exceeds appropriate border value defined with threshold and hysteresis at least t on time t on range 0 99 9 defined with 0 1 sec resolution Unit of this parameter is set by unit parameter toFF turn off delay time the relay is turned off with delay equal toFF if the input value exceeds appropriate border value defined with threshold and hysteresis at least toF
34. an be controlled depend on both present measured value and peak value if peak detection is enabled Omod current output mode can be set to values OFF current output disabled 0 20 current output enabled with O 20 mA mode 4 20 current output enabled with 4 20 mA mode modb current output controlled via RS 485 interface OUtL this parameter determines the input value for which the output current is minimal 0 mA or 4 mA depend of current output mode Omod OUtH this parameter determines the input value for which the output current is equal 20 mA The output current value is calculated due to formulas given below I sT C oy l6mA 4mA ou OUtH OU OT m for output range 4 1I8 20mA W OUtL JE oerte etin emp d QUIH OUIL X 20mA for output range 0 IB20mA where W denotes the displayed value is OutL parameter can be greater than OutH In this case the conversion characteristic is reversed it means that if input value raises the output current falls Lo r Hir this parameters define the output current range maximum range 0 24 mA If calculated output value lout exceeds defined range then current output generates the current equal to upper or lower border of the defined range The parameters define the percentage extension of nominal current range 4 20 mA with 0 1 resolution Parameter Lo r defines lower border of the range due to for
35. and induction loads should be equipped with anti interference protection systems e g RC type Use of screened signal cables is recommended Signal cable screens should be connected to the earthing only at one of the ends of the screened cable n the case of magnetically induced interference the use of twisted couples of signal cables so called spirals is recommended The spiral best if shielded must be used with RS 485 serial transmission connections n the case of interference from the power supply side the use of appropriate anti interference filters is recommended Bear in mind that the connection between the filter and the unit should be as short as possible and the metal housing of the filter must be connected to the earthing with largest possible surface The cables connected to the filter output must not run in parallel with cables with interference e g circuits controlling relays or contactors Connections of power supply voltage and measurement signals are executed using the screw connections on the back of the unit s housing NSORS ire cura pressure CIT 350 max 2mm Fig 4 4 Method of cable insulation replacing and cable terminals N All connections must be made while power supply is disconnected uo optional Ay Power RA 24V 5 10 RS 485 supply Imax 100MA Gub AT pes duci on version RI BI JUU el R1 R2 R3 y optional optional optional 0 4 5V 0 2
36. are bigger than the time defined by parameters t on toFF and unit Border values means values equal threshold hysteresis and threshold hysteresis respectively If t on and toFF parameters are set to 0 then the relay state will be changed as soon as input value exceeds any of the border values see points A and C Figure 6 6 a b c If values of t on or and toFF are positive then relay state will be turned on if the input value exceeds the border values and stay bigger or lower during at least t on see points Bon Don Figure 6 6 a d e Similarly the relay will be turned off if time toF F elapse since the input signal value exceeds any of the border values see points Borr Dorr Figure 6 6 a d e BD SENSORS pressure measurement CIT 350 If ta tse tc or tp when input signal stay in zone A or zone B are lower than parameters t on or toFF the relay will not change his state see points A and C Figure 6 6 a d e The state of relay output while the input value exceeds the border values points A B C D is described by parameter modE The relay can be turned on modE on or turned off modE oFF when input signal value is contained in zone A Figure 6 6 a The parameter AL allow user to set the relay output behaviour in critical situations e g Input values exceeds permissible measurement range User can select that the relays will be turned
37. changes press ESC button shortly after SEt is displayed After that device returns to the menu 1 2 2 Numeric parameters slide change mode In slide change mode Edit Slid buttons and v has different functions To increase edited value press or press and hold button only the increasing became quickest as long as button is pressed To slow down the increasing button v can be used If v is pressed shortly and button is still pressed increasing slow down for a moment only if v is pressed and held while button is still pressed the increasing slow down and will be kept on lower speed 23 www bdsensors com CIT 350 To decrease edited value press or press and hold v button only The decreasing became quickest as long as button v is pressed To slow down the decreasing button 4 can be used If is pressed shortly and button v is still pressed decreasing slow down for a moment only if is pressed and held while button v is still pressed the decreasing slow down and will be kept on lower speed Press ENTER at least 2 seconds to accept the changes after that question Set is displayed and user must to confirm or cancel the changes To conform changes and story it in EEPROM press ENTER button shortly after SEt is displayed To cancel the changes press ESC button shortly after SEt is displayed After that device returns to the menu 7 2 3 Switch parameters
38. dquatrechardacterisllO acascantontPSRpSU EN PRMTARIPRDISRIARPURE EEEE 39 11 1 3 Square root characteristic uusiueeocvi ek vk kw ia etai cc cae E c c o ew n 40 ju E Weile erenigzlez cit TET ITTE UU 40 11 2 Examples orealculauofiSsucoterrivisiek cibnbrbsreivntat x riore nPakeeieE toni tariond sq ipa ad dantisantrdanit id nknti 41 12 The MOODUS protocol Hanaliligs sesiosedocise ss eoi tasses es rase pora Fees o eite iato et Faroe sre se eo etes ee troie etos 44 URP dede cT EE 45 12 2 Transmission errors description ccc cecc ees eeceeceeceeceeceeeeeceeeseeeeeeeeseeseeseeseeseeseeseeeeetes 50 12 5 Examples OF g ery answer AICS ceaansccscttancsactevtosuchasterainoutonneseuaotueidcasiunteudennteeucaeunes 50 12 Default and user sS SEMINGS NSU sseeceevecsencdsucesvesdeces vex sedeenesdideevendudncusedsexcuasdyeucyasdv lt ucveedseueeeutese o9 585 09 TE 56 14 WV eT eol gre lio d NEEDS m 56 pm jm A E c m FF Cc peus ama n mrs h ii L Uno cme Ud Ean ted Qum 7 uad Sure I CIT 350 www bdsensors com CIT 350 Explanation of symbols used in the manual This symbol denotes especially important guidelines concerning the installation AN and operation of the device Not complying with the guidelines denoted by this symbol may cause an accident damage or equipment destruction IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS RESPONSIBLE FOR POSSIBLE DAMAGES IF This symbol denotes
39. en and green to red Lo C Hi C these parameters define measurement range of the bargraph The percentage value showed by the bargraph is calculated due to measured value and showed on digital display Lo C parameter defines the value appropriate to O on the bargraph Hi C parameter defines the value appropriate to 100 on the bargraph Measurements between Lo C and Hi C are recalculated due to formula W Lo C Hi a Lo E where P denotes percentage value showed by the bargraph W denotes value showed on digital display the measurement value X 100 3 Value of Lo C can be greater than value if Hi C In this case the conversion characteristic of the bargraph is upturned it means that when measurement value raises then the bargraph value falls and when measurement value falls the bargraph value raises 8 0 4 bri parameter This parameter allows user to set bright of the LED display bright can be set to conventional values from 1 to 8 8 0 5 HOLd menu This menu contains parameters connected with peak detection function See also full description of the peak detection function in paragraph DETECTION OF THE PEAK VALUES modE the type of detected changes of the input signal can be set to values BO SENSORS pressure measu rement CIT 350 norm peaks peak and next drop of the input signal of value equal at least DEA Inv drops dro
40. es a second threshold of the relay output The parameters HYSt modE t on toFF unit and AL are connected with both SEtP and SEt2 thresholds While the controlling process the relay output changes his state depends of both SEtP and SEt2 thresholds in similar way as it was described in one threshold mode If two threshold mode is used modE parameter defines state of the relay output when the input value occurs in a particular zone defined by border values of both thresholds The relay can be turned on if the input value is contained in zone A modE in or zone B modE out and turned off if it is contained in the second one Figure 6 7 I The sequence of thresholds SEtP and SEt2 can be set in any order due to the control of relay outputs is done depend on difference between thresholds values zone A and outside of threshold values zone B T Device programming The device menu allow user to set all parameters connected to operation of measurement input control modes critical situations behaviour communication via RS 485 and access settings The meaning of the particular parameters is described in paragraph MENU DESCRIPTION some of the parameters can be accessed without menu entering quick view mode After pressing or v button name of the threshold e g rEL1 and his value will be displayed on the display in alternating mode If or v will be pressed in 5
41. eseeseeteesaetas 21 Pe DOVEO POTTAN IN E Om 22 Fele OT IMANI OTM REN m 22 dE araetersedlllOblecesuemeninetnviterti Dukan taut tui d EPI I RrrD VUE DI TUR UU DET rUPNE 23 7 2 1 Numeric parameters digit change mode seesseessesseeereenrenne nnn 23 7 2 2 Numeric parameters slide change MOAE cccc cece seeceeece cece eeceeeseeeeeeeeeeseeeseees 23 12 95 OWA bDsramelere T LIS DUDG oiera Orai 24 fade MONTOS S CD UO aT TOTEM 24 59b EET ICU e E E EE EE EEEE E 25 o DEEP MI 0 ee E A E A R UEE 27 ele EE MCU eE E EEEE E E E EE EE E A 2 OO E dI M RTT TTE ee oe ee eee eer ee ere 30 Ou SDAT TNC I usto cUHIVMFODUC aH E E E aco 31 on OP Pao ime Pe TT m 32 om 0 ho rae nO Be ea at 1 ROTE 32 OO SECU FG Wet cocce enicrrdneoinein EE E E E E E EA 33 SR owe MO a ee E E S 33 OC CI Dal atmiel e anys nn ancenseionies EEEE EEEE EER APERAR OPERIRA 35 9 09 GEO DAJFalliel el rend E E EN EEA N TE 35 oO EN MENU A E A E a a a EE 35 OMONE TUC er E EE E 36 SA e a 8 D E E AAE AAE A AE A 38 10 Over current ONOLCCHO Ic re snnicerdnrctcesdneniverdeecstnerentasicanunnndnantcesdenndreaicnnienadeaninessennirantaangnasamecnae 38 11 Displayed values calculation ezancecnpancaccracetecavereescceaconacuveessancadeed avodavenaruneuenoneesncparusanseacesoncd 38 11 1 Additional calculations used conversion characteristic cccccccceccseeeseeeeeeeeeeeeees 38 uum Pu PE Rae zie acie UU Tm m 39 Tad s
42. inal range exceeding display message Lo message Hi Fig 8 1 Example of definition of permissible range of input signal Lo r and Hi r parameters 4 20 mode The Lo r parameter is important if input is set to 4 20 1 5 or 2 10 mode only and determines lower border of the permissible range If input is set to 0 20 0 5 or O 10 mode then lower border of the permissible range is always O For example if input is set to 4 20 mode then lower border is calculated due to expression Imin 4 mA 4 mA x Lo r 96 The Lo r value can be set from 0 to 99 9 Parameter Hi r determines the upper border of the permissible range accordingly to the expression for all modes For example if input is set to 4 20 mode then upper border is calculated due to expression Imax 20 mA 20 mA x Hi r 96 The value of Hi r can be set from 0 to 19 9 96 In example no 1 of the DISPLAY VALUES CALCULATION paragraph the procedure of the permissible input range determining is presented in details 3 Ifthe measurement value do not exceeds permissible measurement range but displayed value exceeds range 999 9999 the warning Ov is displayed rather than the calculated result 29 www bdsensors com CIT 350 8 0 2 OutP menu This menu contains parameters of current output control Menu is available if the device is equipped witch current output Current output c
43. inition for relay R4 OFF 30 nent CIT 350 Parameter Description Default value User s value pote P1AL Critical situation definition for relay R1 yNOC 31 P2AL Critical situation definition for relay R2 yNOC 31 P3AL Critical situation definition for relay R3 yNOC 31 P4AL Critical situation definition for relay R4 hRoC 31 1 0 LoC Measurement value appropriate to 0 on the 0 34 bargraph 1 0 Hi C Measurement value appropriate to 1000 on the 100 0 34 bargraph Display parameters bri Display brightness bri6 31 Configuration of peaks detection function HOLd menu modE Kind of detected changes norm 31 PEA Minimum detected change 0 0 32 timE Maximum time of peak displaying 0 0 32 HdiS The type of displayed value HOLd 32 H r1 Source of relay R1 and LED R1 control rEAL 32 H r2 Source of relay R2 and LED R2 control rEAL 32 H r3 Source of relay R3 and LED R3 control rEAL 32 H r4 Source of relay R4 and LED R4 control rEAL 32 HOUt Source of current output control rEAL 32 Settings of access to the configuration parameters SECu menu Art Permission to changes of relay R1 threshold n 32 without of the user password knowledge Permission to changes of relay R2 threshold A r2 on 32 without of the user password knowledge Permission to changes of relay R3 threshold Ar3 on 32 without of the
44. irst digit to change value use and v buttons Threshold is the medium value of relay hysteresis second threshold of the relay range 999 9999 Negative values can be input by selecting a sign on first digit to change value use and v buttons This threshold is accessible when modE parameter is set to in or out value Threshold is the medium value of relay hysteresis hysteresis of relay range O 999 Full hysteresis of the relay is equal to 2x HYSt parameter The relay state can change when an input signal is out of threshold hysteresis to threshold hysteresis zone 3 Presented parameters should be set to ensure that SEtP HYSt SEt2 HYSt SEtP HYSt or SEt2 HYSt do not exceeds the measure range Additionally in two threshold mode modE in or out the hysteresis for both thresholds must not cover each other in other case relay cannot change his state modE 25 relay operation mode noAC the relay is not active permanent turned off on one threshold mode the relay is turned ON when input signal exceeds SEtP HYSt value and is turned off back when the input signal became lower than SEtP HYSt OFF one threshold mode the relay is turned OFF when input signal exceeds SEtP HYSt value and is turned on back when the input signal became lower than SEtP HYSt GGS In two threshold mode the relay is turned
45. itical situation of relay R1 oFF 25 Parameters of relay R2 operation rEL2 menu SEtP Relay R2 threshold 40 0 24 SEt2 Relay R2 second threshold 50 0 24 HYSt Hysteresis of relay R2 0 0 24 modE Operation mode of relay R2 in 24 ton Turn on delay of relay R2 0 0 25 toFF Turn off delay of relay R2 0 0 25 unit Unit of t on toFF parameters of relay R2 SEC 25 AL Reaction for critical situation of relay R2 oFF 25 Parameters of relay R3 operation rELS menu SEtP Relay R3 threshold 60 0 24 SEC Relay R3 second threshold 70 0 24 HYSt Hysteresis of relay R3 0 0 24 modE Operation mode of relay R3 in 24 ton Turn on delay of relay R3 0 0 25 toFF Turn off delay of relay R3 0 0 25 unit Unit of t on toFF parameters of relay R3 SE 25 AL Reaction for critical situation of relay R3 oFF 25 Parameters of relay R4 operation rEL4 menu SEtP Relay R4 threshold 80 0 24 SEt2 Relay R4 second threshold 90 0 24 HYSt Hysteresis of relay R4 0 0 24 modE Operation mode of relay R4 in 24 o3 www bdsensors com CIT 350 D Rand Gee eee B S pre gt ssure measurel Parameter Description Default value User s value 2s t on Turn on delay of relay R4 0 0 25 toFF Turn off delay of relay R4 0 0 25 unit Unit of t on toFF parameters of relay R4 SEC 25 AL Reaction
46. layed rather than input signal depends on exceeded value see description of Lo r i Hi r parameters paragraph inPt menu BDSENSOHS pressure measu rement CIT 350 Hi r parameter nominal measurement range M gt a 0 mA 20mA permissible measurement range p WAW A W ll Fig 6 2 Definitions of measurements ranges in mode 0 20 mA Is Ifthe measurement value do not exceeds permissible measurement range but displayed value exceeds range 999 9999 the warning Ov is displayed rather than the calculated result In the measurement mode user can check main thresholds values After pressing or v button name of the threshold e g rEL1 and his value will be displayed on the display in alternating mode If or v will be pressed in 5 sec again the next threshold will be displayed else the device comes back to the measurement mode If a free access is enabled see description of SECu menu user can change the value of particular threshold pressing button ENTER see PARAMETERS EDITION Input type range of displaying values characteristic of conversion decimal point position and measure filtering ratio are user configurable parameters All accessible parameters can be changed by entering the menu see DEVICE PROGRAMMING Use the local keyboard or the rem
47. mula Imin 4 mA 4 mA x Lo r 96 This parameter can be set from O to 99 9 96 Parameter Hi r defines lower border of the range due to formula Imax 20 mA 20 mA x Hi r 96 This parameter can be set from 0 to 19 9 BD SENSORS pressure measurement CIT 350 In example on page 42 of the DISPLAY VALUES CALCULATION paragraph the procedure of the current outputs determining is presented in details AL this parameter determines the behaviour of current output if any critical situation occurs The parameter can be set to one of the values noCH current will not change 22 1 current will be set to 22 1 mA 3 4 current will be set to 3 4 mA 0 0 current will be set to 0 mA When the critical situation goes the current will be set to value calculated due to formulas given above 8 0 3 bAr menu This menu allows to configure the bargraph tYPE display mode of the bargraph can be set to one of the values LinbE the line of lighting LEDs from position O to value depend on the measurement result in percent of full scale range Pnt the lighting point single led indicates the percentage value of full scale range depend on measured value Due to resolution of bargraph 5 of full scale only led closest to calculated value lights FCoL this parameter defines colours of the bargraph Combination of red green orange and black dimmed segment are used
48. n 2nd 3 option botH JISENSORS pressure measurem ent CIT 350 Register Write Range Register description Parameter P1AL of sub menu bAr critical situation defined for B8h Yes 0 4 relay R1 0 no change 1 option morE 2 option LESS 3 option on 4 option oF F Parameter P2AL of sub menu bAr critical situation defined for B9h Yes 0 4 relay R2 0 no change 1 option morE 2 option LESS 3 option on 4 option oF F Parameter PSAL of sub menu bAr critical situation defined for BAh Yes 0 4 relay R3 0 no change 1 option morE 2 option LESS 3 option on 4 option oFF Parameter PAAL of sub menu bAr critical situation defined for BBh Yes 0 4 relay R4 0 no change 1 option morE 2 option LESS 3 option on 4 option oFF AUN 49 these registers are active only if device is equipped with active current output after writing to register no 20h the device responds with an old address in the message after writing to register no 22h the device responds with the new baud rate the value of the mbAc parameter is also connected to write to this register so it is possible to block a writes but impossible to unblock writes via RS 485 interface The unblocking of the writes is possible from menu level only the pairs of
49. n HOLd menu 0 PAN ace pa rEAL mode 1 HOLd mode H r2 parameter in HOL d menu 0 d Tes Pese rEAL mode 1 HOLd mode H r3 parameter in HOLd menu O xd mee Cae rEAL mode 1 HOLd mode H r4 parameter in HOL d menu O oun mee oe rEAL mode 1 HOLd mode 47 www bdsensors com CIT 350 Register Write Range Register description HOU parameter in HOL d menu SEN mee Diet 0 rEAL mode 1 HOLd mode 5 g The value of X coordinate of point no 1 of the d Pes pec sts dist user defined characteristic expressed in 0 1 74h5 Yes 999 9999 The value of Y coordinate of point no 1 of the user defined characteristic no decimal point included 5 5 HOU parameter in HOLd menu eal 0 rEAL mode 1 HOLd mode 5 g The value of X coordinate of point no 20 of the cal mee Bae fuels user defined characteristic expressed in 0 1 97h5 Yes 999 9999 The value of Y coordinate of point no 20 of the user defined characteristic no decimal point included Omod parameter in OUtP menu current output mode AOh Yes 0 2 O current output disabled 1 current output enabled with O 20mA v mode 2 current output enabled with 4 20mA mode 3 current output controlled via RS 485 interface Ath Yes 999 9999 OUtL parameter in OUtP menu no decimal point included A2h1
50. ns cannot exceeds 16 registers for single frame Ss The device interprets the broadcast messages but then do not sends the answers BDSENSOHSG pressure measu rement 11 1 List of registers CIT 350 Register Write Range Register description 01h No 999 9999 Measurement value no decimal point The status of the current measurement Oh data valid AOh top 02h No Oh AOh 60h border of the measurement range is exceeded 60h bottom border of the measurement range is exceeded Pnt parameter in InPt menu decimal point position a Mes 0 53 g Q 1 0 0 2 0 00 3 0 000 State of the relays and alarm LED binary format 1 on O off 00000000 000edcba 04h Yes see descr ja relay R1 b relay R2 c relay R3 d relay R2 e alarm LED if written only a b c d bits are important others are ignored these bits allows user to control the relays via RS 485 interface otate of current output expressed in 1 256 mA units it means that high 05h Yes 0 1800h byte express integer part and low byte fractional part of desired output current O6h No 999 9999 Peak drop value no decimal point tyPE parameter in InPt menu nominal input range O 0 20 mA 10h Yes 0 iuc range 1 4 20 mA range 2 0 10 V range 3 2 10 V range 4 0 5 V range 5 1 5 V range CHAr parameter in InPt menu characteristic type 11h Ye
51. on turned off or not changed in critical situations All parameters connected with relay outputs are described in paragraph rEL1 menu 6 3 2 Two thresholds mode displayed value t t t t i o measure T E zone B i I d signal m e B d eee M HYSt parameter ee i i M i i SEtP or SEt2 parameter zone B b relay state modE in ton 0 toFF 0 C relay state modE out ton 0 toFF 0 relay state d modE in ton gt 0 toFF gt 0 i closed time i i i i i d i i J e relay state A t on parameter modE out P i ton gt 0 toFF gt 0 i i 4 toFF parameter ton parameter i Closed time toFF parameter t on parameter toFF parameter Description A B C D E points where measured signal exceeds border values expected value allowed deviation Bon Borr Con Corr Eou Eorr relays state changes moments for t on gt 0 toFF gt 0 ta ts tc tp te time periods while input signal is in zone A or zone B Fig 6 7 Principle of LED relay output operation for two thresholds mode 21 www bdsensors com CIT 350 Figure 6 7 presents the principle of relay outputs operation for two thresholds mode and an example values of other parameters In this mode parameter SEt2 is accessible in common with SEtP this parameter describ
52. on leads diameter Electrical safety requirements EMC 999 9999 plus decimal point 20 2 or 4 SPST relay RS 485 Modbus RTU 1200 115200 bit sec 4 digit LED display red 4 x 9 mm multicolour 20 segment bargraph non volatile memory EEPROM type IP 65 front foil Panel NORYL GFN2S E1 48 x 96 x 98 mm 93 x 43 mm 102 mm max 5 mm 0 50 C 10 70 C max torque 0 5 Nm 2 5 mm EN 61010 1 EN 61326 This is a class A unit In housing or a similar area it can cause radio frequency interference In such cases the user can be requested to use appropriate preventive measures SENSORS pressure measurem ent CIT 350 4 Device installation The unit has been designed and manufactured in a way assuring a high level of user safety and resistance to interference occurring in a typical industrial environment In order to take full advantage of these characteristics installation of the unit must be conducted correctly and according to the local regulations Read the basic safety requirements on page 3 prior to starting the installation Ensure that the power supply network voltage corresponds to the nominal voltage stated on the unit s identification label The load must correspond to the requirements listed in the technical data All installation works must be conducted with a disconnected power supply Protecting the power supply clamps against unauthorized persons must be taken into
53. ote controller to do it Note all parameters can be remote changed via RS 485 interface iS Configuration of the device via menu or RS 485 interface do not stops measures 6 2 Detection of the peak values The CIT 350 controller is equipped with peaks detection function It can detect a peaks of the input signal and display their values Presets connected with this function are placed in HOLd menu see description of HOLd menu The detection of the peak can be done if the measured signal raises and drops of value at least equal to parameter PEA Detected peaks are displayed during the time defined by parameter timE If a new peak will be detected while one is displayed this new peak will be displayed and display time counter will be cleared Figure 6 3 If no peaks are detected while time timE elapses device starts to show the current value of input signal again The relays LEDs and the current output can be controlled depend on the current value of input signal or the peak value see HOLd menu 17 www bdsensors com CIT 350 4 measure timE timE PE R real measurement result time display value Fig 6 3 Process of peaks detection 6 3 Control of the relay outputs The control of the object measured signal is realized via relay outputs Front panel LEDs named R indicates the state of particular relay output 3 lIfdevice is not equipped with one or more relay outputs
54. p and next peak of the input signal of value equal at least DEA PEA minimal detected signal change classified as peak or drop see Figure 6 3 timE maximum time of displaying of the peak drop value can be set from 0 1 to 19 9 sec with 0 1 sec resolution HdiS type of displayed values rEAL current value is displayed HOLd peak drop value is displayed Hri Hr4 relay LED outputs R1 R4 operation mode rEAL relay LED operates depend on the current value HOLd relay LED operates depend on the peak drop value HOUt current output operation mode rEAL current output operates depend on the current value HOLd current output operates depend on the peak drop value 8 0 6 SECu menu This menu contains presets connected with availability of other parameters Scod user password 4 digits number If this parameter is set at value 0000 user password is turned off If the user do not remember his password the access to the menu is possible by the one use password To get this password please contact with Marketing Division Single use password can be used only one time after that it is destroyed Entering this password causes in clearing of user password it means sets the user password to 0000 3 The one use password can be used ONE TIME ONLY it is impossible to use it again The one use password can be restored by Service Division only Ar1 Ar4
55. ph and see Menu inPt Due to the normalized result In the device computes specific segment e g for characteristic from figure below and In 0 65 the segment between points X 50 0 and X 70 0 will be chosen Let s mark those points as PL point low i PH point high in this example PL 50 0 and PH 70 0 and the normalized result In for the point PL as lp in this example Ip In PL 0 5 The displayed result is calculated accordingly to the expression Y PH Y PL HELP XU OFE Wz 1I 1 X where Y PH X PH Y PL X PL mean values of X and Y coordinates of PH i PL points 3 If the normalized result exceeds the user defined characteristic values then specific utmost segment defined by two next points is used for calculations If characteristic from figure below is used and if In gt 1 then segment defined by points X PL 90 0 X PH 100 0 will be used J SENSORS pressure measurem ent CIT 350 Normalized measurement In for 0 20 mA range 0 0 2 0 35 0 5 0 7 0 9 1 9 elements characteristic X PH 70 0 X PL 50 0 Displayed value 0 4 8 12 16 20 Input current mA Fig 11 4 Example of user defined characteristic 11 2 Examples of calculations Example 1 Selection of the permissible input range 4 20 mode If in 4 20 mode the user sets Lo r 20 0 and Hi r 10 then permissible input currents range will be equal
56. played value t ta t signal SEtP parameter m PE e5 expected signal value a zone A 4 2 Bon E A B v i ma a aT S A 1 J aas een eet E I lise ui possem jg eons AN Wn ma iaa 4 H n 0e saan HYSt parameter zone B e allowed signal i i A E i Dg deviation a E i MEE ime b relay state E 4d i rk 4 xim modE on MEM i ob f boda L PoP EY toFF 0 Oo C relay state modE oFF MEM ton 0 toFF 0 i zE l i 4 4 1 ey time relay state E Po of BG d modE on EE MEME ton gt 0 ma toFF gt 0 i i NE i L HN it i e relay state a ton E toFF m modE oFF i 17 parameter Parameter d ton gt 0 open j toFF gt 0 i i ia i i s tof t on we E parameter parameter Description A B C D points where measured signal exceeds border values expected value x allowed deviation Bon Borr Don Dorr relays state changes moments for t on gt 0 toFF gt 0 ta tg tc tp time periods while input signal is in zone A or zone B Fig 6 6 Principle of LED relay output operation for one threshold mode Parameter SEtP sets a threshold of the relay and parameter HYSt sets a hysteresis of the relay Figure 6 6 a The relay can change his state only when input value exceeds over or under border value and ta ts tc tp times Figure 6 6
57. r to modify of particular point of the user defined characteristic After selection current number of points of the user defined characteristic is displayed for about approx 1 5 sec After that device waits for selection of point being edited by v buttons The short pressing of ENTER button causes by switching between X and Y value of the displayed point The long press press and hold at least 2 sec of ENTER button causes by entering to edit the selected coordinate of the point Modification of the coordinates is done accordingly to numerical parameters edition is AddP dELP and EdtP options are available only if the user defined characteristic is used it means when parameter CHAr USEr BO SENSORS pressure measu rement CIT 350 Lor these parameters define the expansion of nominal range in percent They Hi r determine the permissible range of input signal Figure 8 1 The permissible range allow user to exceed the nominal range of input signal If input value is contained in the permissible range a proper result is displayed If input signal exceeds this range defined by Lo r and Hi r Lo or Hi warning is displayed depend on input signal value Lo r 75 0 3 mA Hi r 5 0 1 mA lu Ns nominal measurement range 4 20mA i NG 7 Pa max e 0 1 4 20 21 22 permissible measurement range id lt ooo E measurement result is displayed Ej display regardless on nom
58. rement range e detection of sensor malfunction shortcut or break of measurement circuit 10 Over current protection The current input of the device is equipped with over current protection circuit This circuit protects the standard resistor to damage Maximum input current is set to 40 mA typical When temperature of the standard resistor falls the protection circuit will turn off himself automatically and the device will measure the input current again Due to thermal phenomenon in the standard resistor precision of the measurement may be lower during few minutes up to the standard resistor temperature will falls to the environment temperature 11 Displayed values calculation For simplicity of examples it is assumed that current input is selected and all calculations are related to this input When voltage input is selected calculations are similar be sure of particular ranges and units The first step to compute the result of measure is the calculation of the normalized result it means result of 0 1 range To do it the begin of the input range 0 mA for 0 20 mA range and 4 mA for 4 20 mA range must be subtracted from measured value Next received result must be divided by the width of the input range it means 20 mA for 0 20 mA range and 16 mA for 4 20 mA range So normalized result can be expressed by expressions I Nim 71 4 gt 20mA 7 T 16 foi 20mA range I l I for 0 20mA range P where linp means
59. s colour bargraph Set relay thresholds can be displayed on bargraph together with the measure Displayed values range can be selected by user from 999 to 9999 plus decimal point The device can be equipped with two or four relay or OC type outputs Optionally CIT 350 with two relays outputs can be equipped with active current output Device CIT 350 is equipped with RS 485 Modbus RTU communication interface and sensor supply output The meter can be ordered in two power supply versions CIT 350 can be used for controlling and regulation of processes need proportional and threshold control like temperature processes heating or cooling valves controlling or other 3 Technical data Power supply voltage standard 85 260 Vacipc optional 19 50 Vpc 16 35 Vac External fuse required T type max 2A Power consumption max 4 5 VA or W Current voltage input 0 4 20 mA 0 1 5 V 0 2 10V Current input resistance lt 65 Q typical 55 Q Voltage input resistance gt 50 kQ Accuracy 25 C 0 1 9o FSO tolerance band 0 50 C max 0 25 FSO 5 www bdsensors com CIT 350 Display range Accepted prolonged input overload Outputs optional Communication interface Transmission speed Display Data memory Ingress Protection Housing type Housing material Housing dimensions Mounting hole Assembly depth Panel thickness Operating temperature Storage temperature screws tightening Max connecti
60. s 0 3 l j 0 linear 1 square 2 square root 3 user defined 12h Yes 0 5 FiLt parameter in InPt menu measurement filtering rate 13h Yes 0 3 Pnt parameter in InPt menu the copy of 03h register decimal point position O 0 1 0 0 2 0 00 3 0 000 14h Yes 999 9999 Lo C parameter in InPt menu no decimal point included 15h Yes 999 9999 Hi C parameter in InPt menu no decimal point included 16h Yes 0 999 Lo r parameter in InPt menu in 0 1 96 17h Yes 0 199 Hi r parameter in InPt menu in 0 1 96 20h Yes 0 199 Device address 21h No 20A1h Device identification code ID bAud parameter in rS menu baud rate 22h Yes uus f O 1200 baud 1 2400 baud 2 4800 baud 3 9600 baud 4 19200 baud 5 38400 baud 6 57600 baud 7 115200 baud 23h Vas 0 4 mbAc parameter in rS menu permission to write registers via v RS 485 interface O write denied 1 write allowed Parameters of SECU menu binary format 0 oF F 1 on 24h Yes see descr bit O A r1 parameter bit 1 A r2 parameter bit 2 A r3 parameter bit 3 A r4 parameter rESP parameter in rS menu additional response delay 0 no 25h Yes 0 5 additional delay 1 10c option 2 20c option 3 5Oc option 4 100c option 5 200c option 45 www bdsensors com CIT 350
61. sec again the next threshold will be displayed else the device comes back to the measurement mode If a free access is enabled see description of 5ECu menu user can change the value of particular threshold pressing button ENTER see PARAMETERS EDITION 3 If particular parameter has been changed and confirmed in quick view mode its new value is displayed in alternating mode with parameter name by few seconds Confirmed changes may be checked or user can switch viewed parameter pressing or v button 7 1 Programming menu To enter main menu being in the measurement mode operator must to press and hold at least 2 sec ESC MENU button If the user password is defined see parameter Scod menu SECU operator have to enter correct one before proceeding to menu options Entering of the passwords is similar to the edition of numeric parameters see PARAMETERS EDITION however presently editing digit is showed only on the display other digits are replaced by sign After entering of last digit of the password first menu position will be displayed if the password is correct or warning Err in other case N Pay attention when device parameters are being changed If it is possible turn off controlled installation machine ISENSORS pressure measurem ent CIT 350 Functions of the buttons while sub menu and parameter choice Selection of sub menu or parameter for editing Name of selected item AN
62. sing the suppression circuit the level of generated electromagnetic disturbances is lower and the life of relay contacts rises www bdsensors com CIT 350 a b Fig 4 12 Examples of suppression circuit connection to relay terminals b to the inductive load voltage input 24 V Fig 4 13 Example of OC type outputs conection BDISENSORS pressure measurement CIT 350 optional ACTIVE current output current input 4 20 mA Fig 4 14 Example of current outputs connection for device with current output only 4 4 Maintenance The unit does not have any internal replaceable or adjustable components available to the user Pay attention to the ambient temperature in the room where the unit is operating Excessively high temperatures cause faster ageing of the internal components and shorten the fault free time of unit operation In cases where the unit gets dirty do not clean with solvents For cleaning use warm water with small amount of detergent or in the case of more significant contamination ethyl or isopropyl alcohol N Using any other agents can cause permanent damage to the housing 5 Front panel description AL R1 R2 R3 R4 alarm LED indicator AL Samaa Thresholds exceeding B Q o Q LED indicators R ie display 54 bargraph Du programming 3 pushbuttons oe ENTER 10 j 15 www bdsensors com CIT 350 Symbols and functions of push buttons Symbol used in the
63. t input currents from example 2 a lin 10 mA and In 0 375 Accordingly to expression on page 36 for linear characteristic 0 375 x 1200 300 211 and next the Lo C value is added to the result so the displayed value W 211 300 89 b lin 2 5 mA and In 0 0938 W 287 C lin 20 5 mA and In 1 0313 W 1295 Example 5 The square root characteristic Let the input mode 4 20 mA and parameters Lo C and Hi C equal to 300 and 1200 respectively The calculations will be done for there different input currents from example 2 a lin 210 mA and In 0 375 Accordingly to expression on page 3 for linear characteristic sqrt 0 375 x 1200 300 919 and next the Lo C value is added to the result so the displayed value W 919 300 619 b lin 2 5 mA and In 0 0938 normalized result is negative so the displayed value is equal to Lo C parameter W Lo C 300 C lin 20 5 mA and In 1 0313 W 1223 BO SENSORS pressure measurement CIT 350 Example 6 The user defined characteristic Let the input mode 4 20 mA and the user selected the 10 segment characteristic To do this it is necessary to enter X and Y coordinates of 11 points see Menu inPt The calculations will be done for three different input currents from example 2 so in calculations some of the segments will be used only Let the following points will be given X1 00 0 Y1
64. tP dELP InPt menu respectively 3 If user defined characteristic is selected and if number of defined points is lower than 2 then warning Errc is displayed in measurement mode The process of displayed result calculation is described in details in DISPLAY VALUES CALCULATION paragraph FiLt 35 Pnt 2f this parameter sets filtration rate It can be set to values from O no filtration to 5 strongest filtration time window about 2 sec decimal point position It can be set to one of 0 74 0 0 amp amp 0 00 0 000 www bdsensors com CIT 350 Decimal point position is changed by 4 v buttons Lo C These parameters describe the values displayed for minimum and maximum input HI C current For example if input type is set to 4 20 mA Lo C parameter defines the value displayed when input current is equal 4 mA and Hi C parameter defines the value displayed for 20 mA of input current Available range for these parameters 999 9999 Negative values can be set by entering sign on the first position by use of v buttons Current output can be controlled depend on both present measured value and peak value if peak detection is enabled AddP this menu allow user to add single point to the user defined characteristic After selection of this option device waits for X and Y coordinates of new point Modification of the coordinates is done accordingly
65. tput current will be calculated for three displayed values D a D 17 5 According to formula from page 29 lout 17 5 10 0 20 0 10 0 x 16 mA 4 mA 0 75 16 4 16 mA 43 www bdsensors com CIT 350 Calculated lout do not exceeds the output working range 3 21 mA b D 20 5 According to formula from page 29 lout 20 5 10 0 20 0 10 0 x 16 mA 4 mA 1 05 16 4 20 08 mA Calculated lout do not exceeds the output working range 3 21 mA c D 30 0 According to formula from page 29 lout 30 0 10 0 20 0 10 0 x 16 mA 4 mA 2 16 4 36 mA Calculated lout exceeds the output working range 3 21 mA so current output will generate current equal to the upper border of range defined by parameter Lo r i Hi r it means 21 mA 12 The Modbus protocol handling Transmission parameters 1 start bit 8 data bits 1 or 2 stop bit 2 bits are send 1 and 2 bits are accepted when receive no parity control Baud rate selectable from 1200 to 115200 bits second Transmission protocol MODBUS RTU compatible The device parameters and display value are available via RS 485 interface as HOLDING type registers numeric values are given in U2 code of Modbus RTU protocol The registers or groups of the registers can be read by O3h function and wrote by O6h single registers or 10h group of the registers accordingly to Modbus RTU specification Maximum group size for O3h and 10h functio
66. well further agencies in EUROPE Belgium Denmark Germany England ASIA Iran Israel Kazakhstan Taiwan France Thailand Greece Italy Lithuania Luxembourg Netherlands Norway Poland Romania Russia Sweden Switzerland Slovakia Spain Czech Republic Turkey Ukraine AUSTRALIA e Queensland The contents of this operating manual reflect the version available at the time of printing It has been issued to our best knowledge and belief However errors may still be included For incorrect statements and their consequences liability cannot be assumed by BD SENSORS Technical modifications reserved CIT 350 E 040210 Telefon 49 0 92 35 98 11 0 WWW bdsensors com Telefax 49 0 92 35 98 11 11 www bdsensors com info bdsensors de

Download Pdf Manuals

Related Search

Related Contents

Severin SM 3732  7107 User Manual - Sealevel Systems, Inc  Home Accents Holiday TY561-1511-0 Instructions / Assembly  10-0154 Call Before You Dig Spanish:Layout 1  Heimsport-Trainingsgerät Crosstrainer  Sony SCD-XA3000ES User's Manual  Model SR4021 User Guide Receiver - Dans TV & HiFi  Tech Craft ABS48 User's Manual  Suite Junk  Eminent Powerbank Backup battery 3000mAh  

Copyright © All rights reserved. Failed to retrieve file