(095) 174 82 82, 171 09 21 R.No251 Order No 542
Contents
1. 542. Figure 21 3 2 4 1 Eight bit digital indicator is used for display of counting value or instrument functional parameters 3 2 4 2 Four red light emitting diodes signal about count direction and output devices state count direction is direct count direction is reverse K1 the first output device is switched on K2 the second output device is switched on 3 2 4 3 button is used to enter the mode of view and set up of operation parameters for setting parameter value after its selection and also for saving the new set value in nonvolatile memory and exit to OPERATION mode 3 4 2 4 button is used in OPERATION mode to view the first shadow source by holding it in PROGRAMMING mode to select parameter from the list change sign of a number or its value by pressing it 3 4 2 5 button is used in OPERATION mode to view the second shadow source by holding it in PROGRAMMING mode to go to parameter that carries out return to Parameters groups menu or to OPERATION mode or to go to setting of comma position for factor value or selection of digit position while setting the parameter value 28 4 SAFETY MEASURES 4 1 The instrument protection class from electric shock conforms to the class O of State Standard GOST 12 2 007 0 75 4 2 The instrument uses dangerous voltage It is necessary to disconnect the instrument and all devi
3. m Figure 25 36 To set coefficient of predivider P value select digit for changing using button set its value using button press button to return to the group menu To set coefficient of multiplier F value set comma position using button and press button to go to digit by digit value setting select digit for changing using button set its value using button press button to return to the group menu To set flow rate measuring time ti select digit for changing using button set its value using button press button to return to the group menu 37 To set initial bias for flow meter di set bias sign using button at positive value corresponding digit is blank at negative value sign is blinking select digit for changing using button set its value using button press PROG button to return to the group menu To set parameters inP ind and Ftt Init values set each value using button press button to return to the group menu 6 1 9 GrouP_d group figure 26 contains SEL1 and SEL2 parameters that define input values for LD1 and LD2 SEt1 and SEt2 parameters that define their operation logic and dir1 dir2 parameters that define count direction at which output devices must act To set SEL1 dir1 SEt1 SEL2 dir2 and SEt2 parameters values set each value using button press button to return to the group m
4. Press button If out was selected then the instrument will return to OPERATION mode Otherwise an invitation appears on the digital indicator to enter access code Pln_0000 Enter the code if necessary and press button While entering the code use button 32 gt to select its digit position and button to set its value NOLIYMAdO ee siejowesed Jasos sasindw jo Jajunog siojoweJed Buruy s ujod jas lonuoo siajeweJed 100qay siajeweJed uowwog s pouu uonessdo s seA p lonuoo siajalueJed aBueypxe eveq 949 1895 938 VO ozs Zhen en iden EN 938 HU uy HIS 239 Yu WY pul o dul 4d 2149 ZIP 2148 1188 HIP 148 039 pds 33 Return to group menu Setting value Set points Figure 23 6 1 6 GrouP_A group figure 23 contains set points for logic devices U1 U2 t1 U3 and U4 t2 Decimal point position in parameters U1 U2 U3 and U4 is defined by its position in F parameter To set the values of U1 U2 U3 and U4 parameters set parameter sign using button at positive value corresponding digit is blank at negative value sign is blinking then select digit for changing using button selected digit is blinking set its value using button press button to return to the group menu If LD uses t1 and t2 parameters inste
5. devices It s possible to apply to the input of each logic device one of the following Current value of a physical quantity flow meter state timing device state The source is set in SEL1 and SEL2 parameters accordingly 1 value of a physical quantity 2 flow meter state 3 timing device state 21 3 1 9 1 The algorithm used by LD to control appropriate output device is set in SEt1 and SEt2 parameters Following variants are possible 1 switched on at values less than U1 set point U3 2 switched on at values not less than U1 set point U3 3 switched on at values equal to U1 and U2 set points U3 and U4 or values between them 4 switched off at values equal to U1 and U2 U3 and U4 set points or at values between U1 and U2 U3 and U4 set points 5 it is switched on for t1 t2 time on reaching U1 U3 set point 6 it is switched on for preset t1 t2 time at a number multiple to U1 U3 set point 7 it changes state for opposite at a number multiple to U1 U3 set point not available for timing device Besides in dir1 and dir2 parameters the direction of controlled value variation is set at which LD should check conditions set in parameters SEL1 and SEL2 1 check only at increase of current value 2 check only at decrease of current value 3 check in any case 22 3 1 10 Types of output devices Control output
6. devices connected to the logic may be realized as relays optocouplers or optotriacs These devices perform on off con trol of the load either directly or through pow erful control devices such as starters solid state relays thyristors or triacs All the output elements are galvanically isolated from the instrument circuitry 3 1 10 1 Transistor optocoupler is used as a rule to control low voltage up to 50 V re lay Connection diagram is given in figure16 t is necessary to install diode VD1 of KA 103 type or similar in parallel with the relay winding to prevent transistor breakdown from high current of self induction 3 1 10 2 Optotriac is included in the o Phase control circuit of a powerful triac through limiting resistor R1 as shown on figure17 Ohmage of the resistor defines the triac control current Figure 16 Figure 17 23 Optotriac can also control a pair of inverse parallel connected thyristors see fig ure18 It is recommended to connect filtering RC chains to the terminals of thyristors or triacs to prevent them from breakdown caused by high voltage surges in the electric mains Figure 18 3 1 10 3 The second channel of the instrument has doubling output transistor optocoupler intended to control other similar devices for example the same counters timing devices etc figure19 3 1 11 Operation modes of indication 3 1 11 1 Eight bit digital indicator constantly displa
7. discreteness of 0 1 ms The minimum width of impulses perceived by the instrument can be set from 0 1 to 999 9 ms figure 9 13 COUNT COUNT 1 l Figure 9 For example the highest frequency of input impulses at tc 0 1 equals to 5 kHz because minimum period is 0 2 ms Maximum count frequency 8 kHz can be obtained by setting tc parameter to 0 0 14 COUNT Input1 LOCK Input2 RESET Input3 Predivider Reset Lock Timing device Reset Count Count Reset Counter of impulses Supply monitoring circuit Figure 10 Count down of impulses with a possibility of lock and reset by separate inputs 15 3 1 7 2 Count down of impulses with a possi bility of lock and reset by separate inputs is set at inP 1 figure 10 3 1 7 3 Count up of impulses with a possi bility of lock and reset by separate inputs is set at inP 2 figure 11 COUNT inputt Count Counter of impulses Count Reset LOCK 2 o uppiy Input2 monitoring circuit Lock RESET Timing device Input3 Reset Figure 11 Count up of impulses with a possibility of lock and reset by separate inputs 16 Input1 Count Predivider Counter of impulses Reset Count Reset LOCK er o uppiy Input2 monitoring circuit Lock Timin vi RESET g device Input3 Reset Figure 12 Up down count with independe
8. the 18 Figure B 2 Connection of the 18 instrument vvith relay output instrument vvith optotriac output 48 Continuation of Appendix B mains RS 485 A Figure B 3 Connection of the CIS instrument vvith optical transistor output 49 Appendix C Programmable parameters Parameter Values Default valy User s value Name Description General parameters present in each group Return to main menu from PROG button out parameters group in command programming mode Possibility of parameters SEc change Oor1 PROG button 5 rESEt Counter of impulses reset CLEAr C poc cuerunka Group_A LD settings U1 LD1 first setting 9999999 9999999 0 U2 LD1 second setting 9999999 9999999 U3 LD2 first setting 9999999 9999999 0 U4 LD2 second setting 9999999 9999999 User s value column is filled in during instrument programming 50 Continuation of Appendix C 1 2 3 4 5 t1 First output device on state time 1 99 s Second output device t2 4 onstatetime 15995 Group_b Counter of impulses load parameters Counter of impulses Strt initial alti 9999999 9999999 0 FinL Low bound of count at which ounter of impulses is reloaded 9999999 Strt 1 10 Upper bound of count at which FinH counter of impulses is reloaded Strt 1 9999999 10 Group_C Counter of impu
9. 4 using market container made from corrugated board 9 2 Products packing for mail delivery is carried out in accordance with State Standard GOST 9181 74 43 10 STORAGE 10 1 The instrument is to be stored in closed heated rooms in cardboard boxes under following conditions ambient temperature 0 60 eC relative air humidity no more than 95 at temperature 35 C Air indoors should not contain dust acids and alkalis vapor and also corrosive gases 11 TRANSPORTATION 11 1 Transport the packed instrument at temperature from 25 C to 55 C and relative air humidity no more than 95 at temperature 35 C 11 2 Transportation by all kindss of closed transport is allowed 11 3 Transportation by air should be carried out in heated pressurized modules 44 Appendix A OUTLINE DRAWING angle bar bracket 1 Operating position no matter 2 Undercut barrels in accordance with entrance cable diameter Figure A 1 W Type Wall Housing 45 Continuation of Appendix A latches front panel Figure A 2 P1 Type Panel Housing 46 Continuation of Appendix A latches front panel Figure A 3 P2 Type Panel Housing 47 Appendix B power C1 1 1 2 1 3 C2 1 A 2 i mains mains H C2 2 C2 3 C2aux input3 input2 Ucc input3 common RS 485 A RS 485 B input2 Ucc input3 common RS 485 A RS 485 B Figure B 1 Connection of
10. Information about device modification is ciphered in full symbolic notation code CIS device X X X Design Embedded output devices type Computer connection interface Design P1 panel 96x96x70 mm P2 panel 96x48X100 mm W wall 130X105x65 mm M Embedded output devices type R electromagnetic relays S n p n transistor optocouplers T optotriacs Computer connection interface RS device has computer connection interface The example of devices designation used in ordering documentation and in other products documentation CIS P1 R RS device This means 18 device having panel installation housing with 96 96 70 mm dimensions electromagnetic relays as control devices and also RS 485 connection interface Conformity certificate No 03 009 0103 Measurement instrumentation assertion certificate RU C 34 004 A No 20005 1 DESIGNATION 1 1 Multi purpose programmable eight bit pulse counter IC8 is designed to count number of impulses coming to its inputs in direct and opposite direction and further conver sion of this number into a physical value using multiplication by given factor frequency and width of impulses coming to its inputs operating time average and aggregate fluid flow rate together with impulse or frequency sensors 1 2 This instrument has two embedded key type output devices which perform on off switching of the external technological
11. Q z 109456 Moscow 1 Veshnyakovsky Avenue 2 tel 095 174 82 82 171 09 21 R No251 Order No 542 cis TE Counter of Impulses User s Manual CONTENTS IO CON ad cid 2 Designation a aia ada 4 2 Technical Specification and Operation 0 5 5 3 Construction and Principle of Operation 4 Safety Measures iii aaa 5 Installation of the Instrument on Site and Pre starting Procedure 30 6 lnstrument Operation 85 Ennn Ennen nnna 31 TU aaa s SR S R 43 SB Markitig 43 PACKING is ais 252955 Sage aa ai ESETI nus 43 T0 510ra96 za ana SU n 44 TITAN SOON ici A retailed ieee 44 AppendixA Outline Drawing 45 AppendixB Connection Diagrams 48 B Programmable Parameters deca 54 This user s manual UM is intended for operation personnel to get acquainted with the structure principle of operation construction usage and maintenance of the CI8 impulse counter further in the text called instrument This user s manual is applied to devices produced according to TY 4278 001 46526536 02 CI8 devices are produced in various modifications that differ from each other by housing type embedded output devices type and availability of computer connection interface
12. ad of U2 and U4 set their values in the range from 1 to 99 s 34 To set t1 and t2 parameters values select digit for changing using button set its value using button press buttontoreturntothe group menu 6 1 7 GrouP_b group figure 24 contains Fin L Fin H parameters that set count limits and Strt value loaded in the counter of impulses when these limits are reached Decimal point position in these parameters is defined by its position in F parameter To set Fin L Fin H and Strt parameters values set parameter sign using button at positive value corresponding digit is blank at negative value sign is blinking select digit for changing using button gt set its value using button press button to return to the group menu At setting of Strt parameter value button 22 is used not only to select necessary digit but also to set oFF value 35 Return to group menu Setting value Reboot parameters Figure 24 6 1 8 GrouP_C group figure 25 contains inP and tc parameters that define operation mode of the input commutator coefficients of predivider P and multiplier F measuring time ti and initial bias di for flow meter and also operation modes of timing device Ftt indication ind and reset of counter of impulses at switching on the instrument init Common parameters 2 a A E o Setting value 25 2 o
13. ces connected to it from the mains before any repair or maintenance operations 4 3 Do not allow ingress of moisture on the terminal block output contacts and internal electric parts of the instrument It is forbidden to use the instrument in hostile environment containing acid alkali oil etc 4 4 Only qualified personnel who s familiar with the user s manual is allowed to perform connection adjustment and maintenance of the instrument 4 5 While use and maintenance it is necessary to comply with demands of State Standard GOST 12 3 019 80 Operation Rules for Consumer s Electrical Installations noTpe6uTenen and Labor Protection Rules for Using the Consumer s Electric Installations npn ATTENTION As there is a dangerous voltage on the terminal block the instruments in housings for panel mounting P1 and P2 modifications must be installed in control boards accessible only to qualified personnel 29 5 INSTALLATION OF THE INSTRUMENT ON SITE AND PRE START ING PROCEDURE 5 1 Install the instrument on a regular place and anchor it using assembly fasteners included in supply Overall and mounting sizes of the instruments in different housings are given in Appendix A Schemes of connection are given in Appendix B 5 2 Install con
14. ed by means of resampling down impulses coming to predivider input i e impulse on predivider output is formed only after the number of impulses coming to its input will reach the value set in P parameter The P parameter can possess only the integer values from 1 to 9999 If input impulses come to both inputs of the predivider then the impulse on its correspond ing output is formed at the moment when the difference between number of impulses on input and input reaches P value Low level at the Reset input clears the predivider 3 1 4 Multiplier at the counter of impulses output is used for conversion of the cumulative number in the counter into a physical quantity meters litres etc by means of multiplication by the value set in F parameter F value is set by user within the range from 0 000001 to 9999999 The position of a comma at display of the physical quantity on indicator is defined by the position set in F parameter Figure 7 11 3 1 5 Timing device is used for time intervals count and can work in one of two modes set in Ftt parameter stop watch mode which allows to measure time intervals from 0 01 s to 9 h 59 m 59 99 s at Ftt 0 Operating time counter mode which allows to measure the aggregate device operating time up to 99999 h 59 m at Ftt 1 3 1 5 1 To control timing device there are two inputs with active low level Reset and Lock Low level at Lock input pauses time count L
15. enu 38 6 1 10 GrouP_E group figure 27 is used to set instrument network address Adr its digit capacity A LEn data exchange rate SPd and sending format For if RS 485 interface is present Control devices operation modes Ap Setting value Return to group menu Figure 26 39 To set A Len parameter value set its value using button press button to return to the group menu To set Adr parameter value select digitfor changing using gt gt button set its value using button press button to return to the group menu To set SPd parameter value For this purpose set its value using button press button to return to the group menu To set For parameter value For this purpose select format using button press button to return to the group menu 40 Return to group menu Data exchange parameters Figure 27 6 1 11 c rES group figure 28 is used to reset counter of impulses the predivider thus is zeroed On entering the group parameter rESEt appears To reset the counter press button Reset progress is accompanied by consecutive flare of points on the indicator If protection against unauthorized reset is used parameter SEc 1 then rESEt parameter is accessible only af ter entering the code Otherwise param eter out which will be the only one in the group is displayed on the indicator Return to group menu r Setting val
16. equipment when preset values are reached 2 TECHNICAL SPECIFICATION 2 1 Technical specification of the counter is given in table 1 Table 1 Item Value Power supply Supply voltage 130 265V 180 310V DC no more than 4 VA Power consumption Inputs Number of control inputs Inputs low active voltage level Inputs high voltage level 3 from O to 0 8 V from 2 4 to 30 V Impulse counter specification Number of counting bits Maximum frequency of input impulses Minimum width of input impulses Range of predivider values Range of factor values Time constant of input filter 7 8000 Hz 0 1 ms 1 9999 0 000001 9999999 0 1 1000 ms Flow meter Measuring time of average flow rate 1 99 s Timing device Timing discreteness 60 s operating time counting mode 0 01s width measurement mode Output devices Maximum current commutated by relay contacts Maximum current of transistor optocoupler load Maximum current of optotriac load Allowed load peak current of the second channel doubling output 8 A at a voltage of 220 V and cos0 20 4 0 2 A at a voltage of 50 V 50 mA at 300 V constantly open triac or 1 A triac at a frequency not exceeding 50 Hz and tmp 5 ms 30 mA at a voltage 30 V Housing Features Housing type wall panel P1 Panel P2 Protection class 1P44 IP54 1 20 Overall dimensions mm 130
17. impulses see 6 1 11 3 1 7 7 Count up with lock and reset of the counters of impulses and timing devices is setatinP 6 Itis the only mode where it is possible to perform exter nal control of the timing de vice Input 3 is connected to Reset inputs of timing de vice and counter of impulses simultaneously and Input2 is connected to Lock inputs Impulses entering Input1 of the instrument are applied to input of data processing unit figure 15 COUNT Input Count Predivider Counter of impulses Reset Count Reset LOCK Supply monitoring circuit Input2 Lock Timing device RESET Input3 Reset Figure 15 Count up with lock and reset of the counters of impulses and timing devices 20 3 1 8 Power controller is intended to generate a signal at which the counters save information about their current state in nonvolatile memory Owing to this it is possible to continue interrupted process without loss of information at the restoration of supply Restoration of impulses counter value may be disabled by setting init parameter to 1 Then the counter of impulses will be set to the initial state at restoration of supply 3 1 9 Logic devices LD are intended to compare the current value of the controlled parameter with preset values and to generate control signals for output devices according to given algorithm The instrument is equipped with two logic
18. lses load parameters P Divider coefficient needed for predivider operation 1 9999 1 F Factor coefficient needed for Ti Consumption measuring time 1 99 s 0 75 51 Continuation of Appendix C 1 2 3 4 5 di Flow meter indication bias 0 0000001 9999999 0 inp Instrument inputs designation 1 6 4 tc Input filter time constant 0 1 999 9 ms 20 0 Parameter displayed on In d indicator 1 5 1 Format of time displayed on F tt indicator Oor 1 b mu Counter of impulses reload 0 no init with Strt parameter value at 0 instrument switching on 1 yes Group_d Logic devices operation parameters SEL1 Input value for LD1 1 3 1 diri Count direction when LD1 functions 1 3 1 52 Continuation of Appendix C 1 2 3 4 5 SEt1 Control algorithm for the first output device SEL2 Input value for LD2 1 3 1 nt direction when LD2 dir2 1 3 2 ntrol algorithm for th SEt2 Ne a 1 7 1 Group E PC connection parameters A Len Instrument address length 8 bit or 11 bit 8 bit Adr nstrument netvvork address 0 256 or 0 2048 0 Spd 1 Data rate 2400 57600 bps 9600 For Data format see 3 1 12 76 nP 25 53 LISTFOR CHANGES REGISTRATION Change List No pages Lists total Date of Signature No changed substituted new annuled pages change 1 2 3 4 5 6 7 8
19. nection links for control signals connections of the instrument with power network and actuators It is necessary to use only standard instruments for installation operations 5 3 While mounting external connections it is necessary to provide reliable contact with instrument terminals so it is recommended to clean carefully and to tin their contacts Conductors cross section must not exceed 1 mm Connection of wires in all types of housings is carried out by means of screw To access terminal block of the instrument in the wall mount housing it is necessary to remove its upper cover 5 4 It is forbidden to merge output 14 common of the instrument with equipment grounding It is not permitted to install control signals wires in one bundle with power cables producing high frequency or pulse disturbances 5 6 Switch on the instrument after making all necessary connections 0 will be displayed on the digital indicator 5 7 Set all necessary operation parameters following corresponding instructions see section 6 1 30 6 INSTRUMENT OPERATION MODES The instrument can be used in one of two modes OPERATION or PROGRAMMING 6 1 Programming 6 1 1 PROGRAMMING mode is used to change and save in nonvolatile memory the instrument parameters necessary for operation Preset values are saved in the instrument nonvolatile memory at switching off 6 1 2 Programmed parameters are divided into groups according to their designation Paramete
20. nt count inputs 17 3 1 7 4 Up down count with independent count and count in puts and external reset is set at inP 3 figure 12 m0 i a set and direction set by Predivider 5 external signal is set at al C t inP 4 figure 13 Reset ount Reset DIR Input2 Supply monitoring circuit Lock Timing device RESET Input3 Reset Figure 13 Up down count with common count input count direction set by external signal and external reset 18 Count Counter of impulses Count SENSOR 1 o Predivider Reset Reset SENSOR 2 o Supply monitoring circuit Lock Timing device SENSOR 3 o Reset SENSOR A HE SENSOR 1 SENSORS I 1 1 0 111213 1415 1403 12 Figure 14 Up down count with automatic determination of the direction from three sensors 19 3 1 7 6 Up down count with automatic determination of the direction from three sensors is set at inP 5 In this mode input commutator automatically sets count direction basing on queue of entering impulses to the counter of impulses inputs fig ure 14 therefore impulse count starts from the second impulse after the counter reset After setting of count direction commutator transmits all impulses either to or input of the data processing unit In this mode it is impossible to lock count and it s necessary to carry out special operating sequence to reset counter of
21. ow level on Reset input stops time count and clears the counter figure 8 3 1 5 2 In case of absence of active levels at control inputs time count starts right after switching on the instrument In case of power breakup the accumulated value is saved in nonvolatile memory that allows to resume the interrupted count at the following switching on TIME 0 LOCK l l RESET A 1 td b INDIKATOR olalalalalala olololyei Figure 8 12 3 1 6 Flow meter computes speed of physical quantity meters litres etc variation over a period of time set in ti parameter If F P and ti parameters are set to 1 then flow meter shows the number of impulses coming to counter input during 1 second i e frequency The state of flow meter is updated in a measuring period ti In some oscillatory type transducers some initial frequency corresponds to zero value of the flow rate Therefore the meter readings correction is required The correction value can be set by the user in di parameter 3 1 7 Input commutator carries out commutation of instrument inputs to the data processing unit inputs and also preliminary conversion of signals The input commutator operation mode is defined by inP parameter 3 1 7 1 Input filter is used to protect instrument inputs from contact bounce and from other disturbances with duration less than the width of the friendly signal impulses Input filter time constant is set in te parameter with
22. rs list and their description are given in Appendix B 6 1 3 Each group includes parameters SEc and out SEc parameter is intended to guarantee protection from unauthorized change of param eters value When SEc 1 access to the PROGRAMMING mode is possible only through a special code corresponding to the current group If invalid code is entered only view of preset values is possible At SEc 0 change of parameters without entering the code is enabled Access to parameter SEc irrespective of its value is possible only at the entering the group through the code out parameter is used to exit group and to go to top level menu Selection of desired parameter inside the group is performed with the button to go to out parameter press the button Y 31 To display on the indicator current value of selected parameter press button 6 1 4 Top level menu contains a list of parameter group names GrouP_A GrouP_b GrouP_C GrouP_d GrouP_E and also the names of operations reset of the counter of impulses c rES and reset of the timing device t rES 6 1 5 To enter top level menu in OPERATION mode press and hold button until c rES appears on digital indicator figure 22 Select desired group of parameters or operation using button out parameter is used to exit from menu back to OPERATION mode Pressing parameter from any menu item button makes it possible to go to out
23. set in For parameter and it can be of the following types For Data digit capacity bit Even odd check Stop bit number 7b_nP_2S 7 no 2 7b_EP_1S 7 even 1 7b_EP_2S 7 even 2 7b_OP_1S 7 odd 1 7b_OP_2S 7 odd 2 8b_nP_1S 8 no 1 8b_nP_2S 8 no 2 8b_EP_1S 8 even 1 8b_OP_1S 8 odd 1 26 3 2 Instrument structure This instrument is embodied in plastic housing designed for panel or wall mount Sketches of housings with overall and mounting dimensions are shown in Ap pendix A 3 2 1 All parts of the instrument are installed on two printed circuit boards There is a control keyboard digital indicator and light emitting diodes on one board and a power module and connecting terminal on another one 3 2 2 Fastenings are included in supply for panel mounting of the instrument 3 2 3 Terminal block for external connections is installed on the back panel In the instruments designed for the wall installation this terminal is mounted inside the instrument and rubber gaskets are placed in the holes for external connections 3 2 4 The view of instrument front panel for wall and panel P1 types of housing is shown on figure 20 and for panel housing P2 on figure 21 Indication and control elements are arranged on the front panel 27 COUNTER OF IMPULSES cls A JA PROG C1 c2 onun Figure 20 cls COUNTER OF IMPULSES q n O 1 PROG W
24. tage from 0 to 0 8 V figure 4 Input current at low level voltage does not exceed 15 mA input 3 Upov lzi imputa 13 14 Figure 1 Figure 2 Figure 3 3 1 2 Counter of impulses is used to count pulses coming to its inputs 3 1 2 1 The counter has three inputs with active low level COUNT 7 PA 1 1 COUNT 1 1 1 1 1 1 1 1 215 4 1 31 217101 11 21 2 1 1 l l 1 Figure 5 Each impulse coming on input Count increments and each impulse coming on input Count decrements counter state by one In case of impulses present simultaneously on both inputs the counter state remains constant figure 5 Reset input is destined to put the counter into initial state On reset counter of impulses is loaded with a value set in Strt parameter figure 6 If the count should start from zero it is necessary to set Strt parameter to zero 1 1 1 1 1 In rEStl n 1 l n 2 ln 3 N rESt 1 1 1 Figure 6 10 3 1 2 2 Fin L and Fin H parameters set ow and high limits of the count at which counter is automati RELOAD RELOAD cally reloaded with the value set in Strt parameter figure 7 Fin L value should be less and Fin H value should be more than Strt value Fint st 3 1 3 Predivider at the counter of impulses input is used to divide input impulses frequency by the value set in P parameter The division is carri
25. ue A 5 Reset 41 ER Counter of impulses reset Figure 28 6 1 12 t rES group figure 29 is used to reset timing device for exam ple in case of use of the instrument as the operating time counter On entering the group parameter CLEAr appears To reset the counter press button Reset progress is accompanied by consecutive flare of points on the indicator If protection against unauthorized reset is used parameter SEc 1 then CLEAr parameter is accessible only after entering the code Otherwise parameter out which will be the only one in the group is displayed on the indicator 6 2 OPERATION Mode In OPERATION mode the instru ment displays measured value which represents the result of input actions and generates signals according to the algorithm preset at programming Return to group menu Setting value 5 Clear Timing device clear Figure 29 42 7 MAINTENANCE Maintenance of the instrument should be carried out at least once in six months and includes instrument fastening check electric connections check and also removal of the dust and debris from instrument terminal 8 MARKING 8 1 The instrument is marked with symbolic notation code of instrument type and modification trade mark of the manufacturer serial No year of manufacturing 9 PACKING 9 1 Instrument packing is carried out in accordance with State Standard GOST 9181 7
26. x 105x 65 96x 96x 70 96x 48x 100 Device mass no more than 1 0 kg Front panel side 2 2 This device is designed for operation in the following conditions Allowed ambient temperature 1 50 C Relative air humidity at temperature of 35 C no more than 80 Air pressure 86 107 kPa 3 CONSTRUCTION AND PRINCIPLE OF OPERATION 3 1 Principle of operation Functional diagram of the instrument is shown on figure 1 The device has three inputs for external control signals which come to the inputs of data processing unit through input selector to load 9 8 s o o 5 2 sensors 1 3 external control reset Figure 1 The data processing unit includes up down impulse counter with a predivider at the input and a multiplier at the output timing device average flow rate calculator and also two logic devices which generate control signals for output devices according to the user defined algorithm 3 1 1 The instrument has three inputs for external control signals connection It s possible to connect to these inputs contacts of buttons switches relays reed switches etc figure 2 active sensors with n p n open collector transistor at the output To feed such sen sors a voltage of 24 3 V 100 mA maximum load current is provided on a terminal block of the device figure 3 sensors of other types with high level output voltage from 2 4 to 30 V and low level output vol
27. ys one of the following values according to 9 To another the user s choice state of the counter of impulses 14 device Figure 19 flow meter state timing device state U1 value U3 value 24 3 1 11 2 Parameter ind is used to select the value to be constantly displayed on the indicator It is possible to view other two values by pressing and holding of or button The second shadow Ind Constantly displayed source The first shadow source button source l button 1 counter of impulses flow meter timing device 2 flow meter timing device counter of impulses 3 timing device counter of impulses flow meter 4 U1 value 5 U3 value m s the button saves new value Note At the values of parameter Ind 4 or Ind 5 a brief pressing of the button makes t possible to proceed to changing of the set point displayed on indicator Repeated pressing of 3 1 12 Connection interface RS 485 is used to monitor instrument indications on a computer The address of the instrument is set in parameter Adr and its digit capacity is set in A LEn parameter At A LEn 8 bit the address is eight bit and its value is within the range from O to 255 At A LEn 11_bit the address is eleven bit and its value is within the range from O up to 2047 25 Data exchange rate from standard scale is set in SPd parameter and can possess values from 2400 to 57600 bps Data format is
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