multiflex wall mount
Contents
1. 12 3 192 20z i X i 3 z z rwr 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 fi 27 28 110 230 VAC lt 10 10 l N M K ISOLATED DC POWER 50 60 HZ 12VA ANALOG 21 6 30VDC OUTPUT OW RELAY 1 RELAY 2 RELAY 3 RELAY RELAY 5 AC power supply connected Earth to terminal 1 Neutral to terminal 2 Live to terminal 3 The instrument will automatically select either 110V or 230VAC 10 50Hz or 60Hz 12VA A time lag fuse T160mA is fitted DC power supply connected Positive ve to terminal 27 Negative ve to terminal 28 The instrument will accept 24VDC 25 10 9W A time lag fuse T315mA is fitted 5 SPDT Relays rated at 8A 250VAC 30VDC resistive with gold contacts for lower power switching are connected at terminals 4 to 18 for activating external alarms contactors pumps etc Transducer RXV15 is connected Black to terminal 19 Blue to terminal 20 Screen to terminal 21 Temperature compensated transducer RXT15 is connected Screen to terminal 19 Must enable Pr 37 Blue to terminal 20 Black to terminal 22 Isolated Analogue is connected Screen to terminal 24 Positive ve to terminal 25 Negative ve to terminal 26 Separate Temperature Compensation when compensation is provided by a separate temperature sensor the sensor should be connected with a shielded twisted pair and connected Screen to terminal 22. This function allows non standard flumes and vessels to be characterised For full details please refer to Appendix 1 pages 45 to 48 MULTIFLEX MANUAL 25 EDITION 2 NOV 2000 SECTION 4 Open Channel Flow Metering Pr 45 Flow exponent D 1 Enter the required value for the open channel flow device being used e g Flow Device Enter Unity 1 Rect flume 3 2 2 Rect weir 3 2 2 V notch weir 5 2 3 Special 4 Refer to Pr 44 Parshall Flumes 5 14 Request Appendix 4 Pr 46 Maximum Flow Rate D 0 00 Enter the maximum flow rate in units per second per minute per hour or per day corresponding to maximum head set at Pr 4 and then define the time base at Pr 47 Pr 47 Time Base of Maximum Flow Rate D 1 Enter the value corresponding to the flow rate time base Enter 1 units per second 2 units per minute 3 units per hour 4 units per day Pr 48 Totaliser Display Conversion D 0 Used to totalise on the display in flow units larger than those entered at Pr 46 max flow rate 0 Multiples by 1 1 Multiples by 0 1 2 Multiples by 0 01 3 Multiples by 0 001 4 Multiples by 0 0001 5 Multiples by 0 00001 6 Multiples by 0 000001 7 Multiples by 0 0000001 e g If Pr 46 is entered as litres at Pr 48 enter 3 to totalise the flow in cubic metres Note 1 Up to 15 mins of totaliser data can be lost if the unit is powered down 2 On returning to RUN mode after accessing PROG the totaliser wi
3. Mode 1 level measurement LEVEL 2 distance measurement DISTANCE 3 differential NO SIMULATION AVAILABLE 4 OCM LEVEL ONLY NO FLOW DISPLAY MULTIFLEX MANUAL 32 EDITION 2 NOV 2000 SECTION 4 It will set all LEDs relays and the current output as programmed Therefore care must be taken if the instrument is wired into other instruments or controls The displayed value on which all relays are operated is that programmed by the operator The initial speed of the simulation is that set into Damping Pr 6 this can be increased by a factor of 2 by pressing the key and the key can be pressed 6 times x64 To reduce the speed press the key the speed cannot be reduced below that defined by Rate of Change Pr 6 The direction of the simulation can be changed by using the A and W keys which one has to be pressed depends on the set up The simulation can be stopped and re started using the TEST key Press CE to end Number Store Pr 95 Pr 96 Serial Number Viewable only This parameter displays the serial number of the instrument Security Code Store A new security code can be entered at this parameter but after entry it is scrambled Refer to Hycontrol and quote the number displayed here if you forget your security code Resets Pr 97 Pr 98 Relay Hours Starts Totaliser Reset _3 The totalisers are cleared by entering Pr 97 and DSP to show Press CE to clear
4. Programme Correction or Resetting to Factory Defaults If at any time you feel that a mistake has been made the following routine clears the programme back to the known starting position of the factory set values shown on page 52 It is also advisable to return to the factory default values before building a programme for a new application This is achieved as follows Press MODE to display PROG i immediately to display a Pr number ok oo to display Pr 99 DSP to show CE to clear the display ENT to display COdE requesting the security code Me TSS ENT the display will now show P rES followed by t rES and finally DSP to display Pr 99 i T to display Pr 01 The new programme can now be entered The above is a brief introduction To understand programming completely it is necessary to read the detailed section describing Programming Section 3 along with the parameter descriptions Section 4 and the examples Section 5 before continuing MULTIFLEX MANUAL 13 EDITION 2 NOV 2000 Principle SECTION 3 PROGRAMMING The principle of programming and the two modes run and PROG have already been described on page 9 Keypad Definitions Are fully described on page 10 Display Descriptions The following display codes are used PROG run Pr XX MULTIFLEX MANUAL EDITION 2 NOV 2000 Precedes programme mode Precedes run mode Parameter number Security co
5. N S goo oe Sse A D H io om 5 TaB o eal WoS So Ae Se ee 4 ein M st OoN sk So z D e o Sg Ses VED D o Yad on o obstructions seams or welds MULTIFLEX MANUAL EDITION 2 NOV 2000 SECTION 1 Transducer Cable Extensions Transducer cables may be extended using a junction box as shown in Figure 6 Figure 6 Standard Transducer Temperature Compensation Transducer Transducer Transceiver Transducer Transceiver Junction Junction Black O D Screen Term 19 Black O D opper core T22 Screen RG62AU Screen D DO Screen T19 Beldon 9207 or equal Ble D Core Term 20 Blue M Silver core T20 Standard Transducer alternative Transducer Transceiver Junction Black O D Copper core T19 Beldon 9207 S t Screen T21 nye D or equal Blue D Silver core T20 Figure 7 Transducer Wiring for Differential Mode Upstream Transducer Transceiver Junction gt O DO Screen Term 19 Screen RG62AU Blue D Core Term ee Extend transducer cable if necessary with RG62AU as shown Black Downstream Transducer Transceiver Junction gt O DO Screen Term 21 Screen RG62AU Wire unextended transducers as below Black Bue Core Term 16 DOWNSTREAM BLUE UPSTREAM BLUE UP amp DOWNSTREAM BLACKS UP amp DOWNSTREAM SHIELDS NOTE LINK 2 19 20 21
6. D 20 C If no probe is fitted the vessel temperature may be entered here Pr 39 Temperature Sensor Test D 0 00 Displays the sensor resistance in K Ohms Typically 9 5 at 20 C If value shows 0 00 after switching Off and On then either no sensor is connected or there is a short circuit or open circuit in the system MULTIFLEX MANUAL 24 EDITION 2 NOV 2000 SECTION 4 Volume Conversion Pr 40 Vessel Shape D 0 0 no volume conversion 1 flat bottomed vessel and percentage of span 227 standard shapes as shown below 8 vessel linearisation see Pr 44 ENTER 3 ENTER 1 ENTER 2 _ oF re Gat Zl FLAT BOTTOM OR PERCENTAGE PYRAMID BOTTOM CONICAL BOTTOM ENTER 6 ENTER 4 FLAT ENDS pea ENTER 7 H gg E H HALF SPHERE BOTTOM PARABOLIC BOTTOM PARABOLIC ENDS Pr 41 Vessel Dimension H D 0 00 Enter H where indicated above in units selected at Pr 2 Pr 42 Vessel Dimension L D 0 00 Enter L where indicated above in units selected at Pr 2 Pr 43 Display Conversion D 1 00 If Pr 40 entry is between 1 8 then enter full scale display 100 e g if 100 2000 litres and display is required in litres then set Pr 43 to 2000 100 20 To display in any unit enter any value from 0 001 to 99 99 NOTE Display cannot be more than 4 digits If itis necessary to measure 20 000 units then display in thousands of units by dividing 20 by 100 0 2 Pr 44 Linearisation D 7
7. Pr 23 Relay1 Failsafe Pr 24 Relay2 Failsafe gt Enter 1 Energise One option for Pr 25 Relay3 Failsafe 2 De energise each relay Pr 26 Relay4 Failsafe 3 Hold state Pr 27 Relay5 Failsafe NOTE Relay designated LOSS OF ECHO will always de energise Relay 5 Failsafe is not applicable in differential mode Pr 28 Analogue and Display Failsafe D 3 Enter 1 Low Diss High 3 Hold Value Pr 29 Failsafe Time Delay D 120 Enter value in seconds before unit goes to selected failsafe positions Minimum value is 30 seconds MULTIFLEX MANUAL 22 EDITION 2 NOV 2000 SECTION 4 Analogue Pr 30 Analogue Output D 1 Enter 1 4 20mA _ 2 20 4mA_ gt related to span Pr 4 or Pr 33 3 0 20mA 4 20 OmA_ 5 4 20mA gt will over range 0 24mA if normal span 6 0 20mA Pr 4 is exceeded The output represents different variables depending on the application mode selected at Pr 1 Limits are defined by Pr 4 Pr 1 Entry Application Output Proportional To 1 00 Level a Level b Vol mass if Pr 40 is used 2 00 Distance a Target distance b Space vol mass if Pr 40 is used Differential DLD 1 Differential level 2 Upstream level 3 Downstream level 4 00 Open Channel Meter OCM 1 Head 2 Flow NOTE Refer to Pr 34 for output test Pr 31 Analogue Value Options D 1 In differential mode Pr 1 3 Enter 1 difference of two levels Pr 4 represents maximum differ
8. 1 Undo the 6 quarter turn screws on the front panel and open the hinged door to expose the mounting holes Mount the unit on a flat surface and secure it via the 4 mounting holes moulded in the enclosure DO NOT use excessive force when tightening the fixings and avoid any distortion of the enclosure Ensure that the mounting surface is not subject to vibration and is not close to high voltage cables contactors or drive controls The unit should not be mounted in a confined space where temperatures may exceed the normal working temperature If the unit is mounted outside it must be protected from direct sunlight and severe weather conditions Remove the required number of hexagon blanking plugs from the bottom of the enclosure and replace them with appropriate conduit hubs or cable glands to maintain the I P rating Figure 1 160 130 CTRS my RELAY1 O RELAYS RELAY 4 RELAY2 C RELAYS HY CONTROL PROGRAMMABLE LEVEL CONTROLLER 228 CTRS HITO LO TO HEAD ELOW 1 2 3 4 R1 HR R2 HR R3 HR R4 HR 5 6 7 _R1 ST R2 ST R3 ST Ce E R5 HR CE R5 ST TEMP aj Y 3 HOLES 4 MOUNTING HOLES 20 DIA PLUGGED 4 3 DIA UNDER LID MULTIFLEX MANUAL 2 EDITION 2 NOV 2000 SECTION 1 Electrical Connections Figure 2 The instrument has two part screw terminals It can be powered from either an AC or DC supply Figure 2
9. 2 NOV 2000 APPENDIX 1 Example _ Flow Special Flume Mapping Use Example 5 on Page 39 but substitute a special U throat flume with maximum flow 39 litres second at 30 cm head First create the following table from the relationship of head and flow which must be given to the special flume Point Head cm Head A Value Flow litres sec 10 oo oo f 00 8 00 17 00 25 00 33 00 600 150 50 0 5000 67 00 83 00 900 300 1000 f 100 00 255 00 Notused Notused 0 255 00 Notused Notused 0 255 00 Notused Notused 0 255 00 Notused Notused 255 00 Notused Notused 0 255 00 Notused Notused 0 255 00 Notused Notused NOTE 1 Points 10 to 16 not used leave at factory default value 2 A values must be whole numbers no decimals allowed 3 b values must be entered as the tabulated value the decimal will be automatically allocated Now continue programming the instrument as follows Programme the instrument exactly as Example 5 on Page 39 except Change Pr 45 from 2 to 4 which denotes Special Flow Device Goto Pr 44 and proceed as follows Press Pr 44 to display Pr 44 Press DSP to show Press ENT to show Al Press DSP to show value of A1 default 255 Key in the value O from Table 1 and press ENT Press DSP to show Al again Press A to show A2 Press DSP to show value of A2 default 255 Key in the value 8 fro
10. 2 Number of times energised Relay 3 Number of times energised Relay 4 Number of times energised A Relay 5 Number of times energised Test Displays gain or confidence ENT Displays mA output DSP Displays distance from the transducer face v Displays temperature MULTIFLEX MANUAL 10 EDITION 2 NOV 2000 SECTION 2 To View Parameters The operational programme is contained within the parameters listed on Page 18 Each parameter instructs the unit to carry out a specific function To look at the complete list of parameters and the options available see Section 4 but as an initial guide proceed as follows Press MODE the display will show PROG there may be a delay of up to 6 seconds if the instrument is busy Press l to obtain a display of Pr 01 or the previous parameter number used It is now possible to key in any parameter number via the keypad To display its value press DSP To return to the parameter number press DSP again To view a sequence of parameter numbers enter the first one that is of interest and then press A to increase the parameter number or W to decrease the parameter number Similarly if a parameter value is displayed then pressing A or W key will momentarily flash the next parameter number and then display that parameter value Press MODE to return to the RUN mode If a key is not pressed for a period of 30 seconds the unit will automatically return to the
11. 22 23 24 N 2 2 1 AC POWER 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 27 28 110 230 VAC PaA 10 10 alll ts ELATED aA concn 50 60 HZ 12VA DUCER SENSOR OUTPUT 21 6 30VDC aA ow RELAY 1 RELAY 2 RELAY 3 RELAY 4 MULTIFLEX MANUAL 7 EDITION 2 NOV 2000 SECTION 1 Temperature Sensor If a separate temperature sensor is used it must be mounted where it will monitor temperature changes of the air between the transducer and the product This is usually adjacent to the transducer but should not be in direct sunlight and should be protected from wind chill Figure 8 28 DIA M20 x 1 5 TERMINALS VIEWED ON TOP TERMINALS ARE NOT POLARISED HOUSING POLYCARBONATE 20 _25 lt PROBE 316 SS 150 TEMPERATURE SENSOR RTS 2 POLARITY UNIMPORTANT EXTERNAL INTERNAL EARTH EARTH HOUSING CAST IRON BLACK EPOXY PAINT CLASSIFICATION EEx e II T6 IP 65 PROBE 316ST STEEL TEMPERATURE SENSOR RTS 2B MULTIFLEX MANUAL 8 EDITION 2 NOV 2000 SECTION 2 EASY START FOR MULTIFLEX The Multiflex system requires programming by the operator to obtain the required measurements and control To create a basic
12. Areas Zones 1 amp 2 Ambient Temperature 20 to 60 deg C CENELEC EExm II T6 CERTIFICATE NO 93C 108 020X CE approved EMC tested to EN50081 amp EN50082 Parts 1 amp 2 Low voltage directive EN61010 PTFE facings and flanged construction available for most types MULTIFLEX MANUAL 51 EDITION 2 NOV 2000 PARAMETER SETTINGS Pr Description Factory User Default BasicSet up 1 Application 2 2 Woe 3 Empty Distance 15 4 Operational Span 15 Blanking Distance 05 Rate of Change 1 f 7 _ Decimal Display 2 Relay 1 Relay 1 Set Relay 1 Reset Relay 2 Relay 2 Set 24 Failsafe R2 25 FailsafeR3 26 FailsafeR4 ea 28 Failsafe Analogue 29 Failsafe Time Delay Analogue 32 Analogue Datum 0 34 Analogue Test 0 Temperature ProbeTest 0 Volume Conversion 40 Vessel Shape 0 41 DimensionH 0 42 Dimensioni 0 43 Display Conversion 1 a Volume Linearisation eo EEE Oo i ie i Oo ie i 3 Oo EE Ss FailsafeRS 3 20 i ai a Oo Oo le I i i Oo Factory User Engr Default as ae Flow Exponent 1i f Max Flow Rate o 47 Time Base for Flow 1 48 Totalise Display Conv 0 Contr for Ext Counter 0 Penstock Control 1 51
13. a suitable junction box and RG62AU cable for the standard transducer The temperature compensated transducer requires an additional single core screen extension Alternatively you can use screened twin axial Beldon 9207 or equal for either type of transducer refer to Fig 6 Transducer cables and temperature compensation cables can be run together but should be separated from power cables by at least 150mm and preferably installed in their own earthed steel conduit MULTIFLEX MANUAL 4 EDITION 2 NOV 2000 SECTION 1 Figure 4 Alternative mounting arrangements for transducers FLEXIBLE OR RIGID BRACKET UNDER FLANGE CONDUIT DVL h ISOLATION KIT ISOLATION KIT a lt ee INTEGRAL FLANGE WITH PTFE FACE SLIP ON FLANGE OPTIONAL la ISOLATION KIT ei Do not mount transducers incorporating temperature compensation in direct sunlight Do not over tighten the bolts on flange construction transducers Flange transducers are not pressure rated and are suitable only for atmospheric pressure CENELEC approved transducers must be mounted and wired in accordance with the appropriate National Standards concerning installation in hazardous environments For differential applications mount both transducers at the same height above the zero datum point For open channel flow applications the transduce
14. flow and provide pulsed output to external totaliser every 1000 litres Display flow reading Pr l1 4 To define open channel flowmetering Pr2 4 As distances are small work in cms Pr 3 120 Distance from transducer to bottom of channel Pr 4 30 _ Level at which maximum flow rate occurs Pr 5 50 Blanking zone into which level will not rise It is suggested that this is above the top of the channel to allow the system to continue reading up to that level Pr 6 50 _ Rate of change of level 50cm min Pr 17 7 Relay 4 assigned to indicate loss of echo to the telemetry unit Pr 20 5 Relay 5 to operate as external totaliser switch Pr 28 3 Analogue output holds on failsafe as factory set Pr 29 120 Failsafe time is left at default of 120 seconds Pr 30 1 4 20mA output fixed to span Pr 4 Pr 31 2 Analogue output represents flow rate Pr 37 2 Probe enable if temperature compensation is used Pr 45 2 To define that a rectangular flume is being used Pr 46 39 Defines the maximum flow as 39 litres Pr 47 1 Flow in Pr 46 is in litres per second Pr 48 3 To avoid totaliser overflow totalise in cubic metres rather than litres Pr49 1 To set external totaliser to same as internal totaliser Pr 78 Simulate the programme will display level not flow Pr 98 Clear and initiate the totalisers NOTE In normal RUN mode display will always show Flow MULTIFLEX MANUAL EDITION 2 NOV 2000 Instantaneo
15. in front of the transducer within which the product should not enter and within which no return echoes will be processed It is important to ensure that the product being monitored does not enter this zone Enter in the units selected in Pr 2 DO NOT REDUCE THE FACTORY SET VALUE WITHOUT REFERENCE TO HYCONTROL Pr 6 Rate of Change D 1 00 This value should be as small as possible but greater than the maximum rate of change of level Do not change this value unless you know that the rate of change is greater than 1 0m min or that the system continually tracks a level lower than the actual level If it is necessary to change the value enter the new value in units per minute selected in Pr 2 The suggested range of values is 0 1 to 10 metres min or the equivalent Pr 7 Decimal Display D 2 0 No decimal places allowed 1 Upto 1 decimal place allowed 2 Upto 2 decimal places allowed 3 Upto 3 decimal places allowed Relays The 5 relays can be assigned to various functions depending on the application as shown below Hysteresis is fully adjustable so for most functions it is necessary to enter both set and reset values The relay state under normal operating conditions is defined as e normally energised De energise when set value is reached d normally de energised Energise when set value is reached Failsafe functions are detailed in Pr 23 27 The relays can be programmed to give both high and low alarm or
16. the application N Temperature compensation error 1 Note MULTIFLEX MANUAL EDITION 2 NOV 2000 The position of the transducer temperature sensor is important to prevent heating by sunlight and convection currents Also the sensor should be in a free air vented position if possible to avoid hot spots Check that the sensor is enabled at Pr 37 Check the resistance of the sensor when disconnected against the value displayed at Pr 39 when connected If using RXT series transducer integral temperature compensation check resistance across black core and screen when disconnected The sensor compensates only for temperature variance it is not expected to accurately measure the actual temperature 43 SECTION 6 O Relays not switching 1 Check the programmed relay designations and settings at Pr 8 Pr 22 Functions can be tested under simulation at Pr 78 2 Test the relays at Pr 75 or Pr 76 3 Check contact continuity at the terminals Warning We recommend disconnection of external controls alarms etc before performing the above tests P The PCB hums loudly 1 Check the transformer mounting screws for tightness on the bottom PCB MULTIFLEX MANUAL 44 EDITION 2 NOV 2000 APPENDIX 1 LINEARISATION VESSELS OR FLUMES This feature allows volume conversion to be applied on irregular shaped vessels and flow measurements to be made on open channels providing that level volume flow relationships are k
17. to control levels e g Highalarm Set 2 0m Low Alarm Reset 0 5m Reset 1 8m Set 0 2m The system will automatically configure itself as high or low alarm depending on which of the set and reset entries has the higher value Note that on distance measurement only Pr 1 2 the higher value is furthest from the transducer Defaults are 0 for relay designations 8 11 14 17 and 20 Defaults are 0 00 for relay settings 9 amp 10 12 amp 13 15 amp 16 18 amp 19 and 21 amp 22 MULTIFLEX MANUAL 20 EDITION 2 NOV 2000 SECTION 4 The relays are controlled from parameters 8 22 as follows Relay1 Relay2 Relay3 Relay4 _ Relay5 Designation Pr 8 Pr 11 Pr 14 Pr 17 Pr 20 Set l e d on Pr 9 Pr 12 Pr 15 Pr 18 Pr 21 Reset l e d off Pr 10 Pr 13 Pr 16 Pr 19 Pr 22 The application relay function options are shown on the following tables Pr 8 BASIC APPLICATION RELAY FUNCTION Relay 1 Pr 1 1 Pr 1 2 Pr 1 3 Pr 1 4 Designation Level Distance Differential Open Channel Flow 1 00 Level Alarm e Level Alarm on e Level Alarm e Either Transducer Differential Alarm e 3 00 Off Differential Control d Flow alarm e 4 00 Off Downstream Level Alarm e Off 6 00 Temperature Alarm e Temperature Alarm e Temperature Alarm e e Normally energised d Normally de energised De energise to alarm Energise to start motor For Level Differential ENTER values in display unit as selected at Pr 2 For Flow ENTER
18. values in unit selected at Pr 46 For Temperature ENTER values in deg C valid only if probe or RXT fitted For Totaliser Refer to Pr 49 For Loss of Echo or Run Prog No set reset entries are required Pr 11 Identical to Pr 8 Relay 2 Designation Pr 12 Relay 2 Set dentical to Pr 9 I Pr 13 Identical to Pr 10 Relay 2 Reset I Pr 14 Identical to Pr 8 Relay 3 Designation Pr 15 Relay 3 Set dentical to Pr 9 Relay 3 Reset Relay 4 Designation Pr 18 Relay 4 Set Identical to Pr 9 Pr 19 Identical to Pr 10 Relay 4 Reset MULTIFLEX MANUAL 21 EDITION 2 NOV 2000 SECTION 4 Pr 20 Designation Level Distance Differential Open Channel Flow ENTER 0 Level Alam 6 Level Alarm Level Control d Level Control Flow alarm Off 5 00 Off N A Totaliser Drive d 6 00 Temperature Alarm e N A Temperature Alarm e e Normally energised d Normally de energised De energise to alarm Energise to start motor For Level Differential ENTER values in display unit as selected at Pr 2 For Flow ENTER values in unit selected at Pr 46 For Temperature ENTER values in deg C valid only if probe or RXT fitted For Totaliser Refer to Pr 49 For Loss of Echo or Run Prog No set reset entries are required Failsafe D 3 for all On loss of power all relays will de energise For other fault conditions e g damaged transducer the failsafe relay state after time delay selected at Pr 29 is selectable
19. working system only parameters to 6 need be programmed To become familiar with the use of the system the following QUICK START guide can be used before the instrument is fully programmed Quick Start Guide l Connect power and transducer cables as previously described 2 Close the front cover before switching on the power The instrument is factory set for distance measurement up to 15m range 3 Hold the transducer approximately 1 5 metres from a flat surface and switch on After a short period the display will show the distance e g 1 50 between the transducer and the surface If the transducer is now moved slowly towards the surface the reading should decrease This shows that the unit is correctly wired and is operating as expected in response to the reduction in distance If the reading increases as the transducer is moved towards the surface it indicates that the unit has been previously programmed to read level not distance Principle of Programming The Multiflex has two modes a b RUN Normal operating PROG Programming In the RUN mode the instrument monitors the target displaying values and setting outputs as programmed by the operator In the PROG mode the operator uses the keypad in conjunction with the display to adjust the settings and to test that the unit is programmed correctly MULTIFLEX MANUAL 9 EDITION 2 NOV 2000 SECTION 2 Keypad Definitions The keypad has 20 keys which are use
20. 1 Must enable Pr 37 Core to terminal 22 Core to terminal 23 The polarity of the cores is unimportant but it is important that the screen is connected only at the instrument end and not at the temperature sensor end MULTIFLEX MANUAL 3 EDITION 2 NOV 2000 SECTION 1 Transducer Mounting The transducers can be supplied separately or mounted in a Teflon faced flange for applications requiring chemical compatibility Figures 3 and 3a show the dimensions Figures 3 and 3a 10m cable M20 x 1 5 6 9 dia e x Isolation Kit Fit as shown _ No amp size of bolts to suit flange selected Bolt hole PCD to suit flange selected Dia to suit flange selected An isolation kit is provided with each transducer to minimise any ringing transmitted through the mounting structure Its use is optional on flanged transducers for terminating conduit The transducer must be mounted perpendicular to the monitored surface and ideally at least 0 5 metres above its maximum level The transducer has a 10 inclusive conical beam angle at 3dB and must be mounted with a clear unobstructed sight of the product to be measured over the complete measurement range The beam footprint approx 20 of the distance to the product The transducer is provided with integral cable which can be extended up to 300 metres using
21. 40 41 45 49 51 52 Drawings Fig 1 Fig 2 Fig 3 Fig 4 Fig 5 Figs 6 amp Fig 8 SECTION 1 ULTIFLEX PROGRAMMABLE LEVEL CONTROLLER USER MANUAL INTRODUCTION Multiflex Multiflex is a programmable multi purpose level measurement instrument suitable for both solids and liquid applications It consists of two elements a wall mounted transceiver which has a display and an integral keypad for programming and a transducer which must be mounted directly above the surface to be monitored Ultrasonic pulses are transmitted by the transducer to the surface of the product to be monitored and are reflected back to the transducer The time period between transmission and reception of the sound pulses is directly proportional to the distance between the transducer and the product Since the speed of sound through air is affected by changes in temperature a separate or integral in the transducer temperature sensor may be fitted to improve accuracy Multiflex is capable of the following functions a Level Measurement height above datum b Distance Measurement distance from datum c Volume Measurement d Differential Level Measurement e Open Channel Flow Measurement O C M f Pump Control WARNING DO NOT OPEN THE TRANSCEIVER DOOR WHEN THE POWER IS ON TO THE SUPPLY OR RELAY TERMINALS MULTIFLEX MANUAL 1 EDITION 2 NOV 2000 SECTION 1 INSTALLATION Transceiver Wall Mount Figure
22. 52 53 54 55 56 57 Serial Comms 62 63 68 69 70 71 72 73 74 97 98 99 Pump Controls Pump Sequence 100 Duty Standby 10 Pump Exerciser 100 Pump Tolerance 100 Pump Maintenance 0o00 Run on Interval ooo Run on Time ooo a Fe ae ae OoOo To T Serial Comms Enable 100 StationNo 0 00 Echo Detection han O o Echo Selection 100 Check Search 100 Echo Velocity 34410 ae i Miscellaneous Correction Value 0 00 Parameter Display 0 00 Software Rev No ULxx ResetCounter__ 000 Test Parameters Ooo ES o o Digital Output Set 0 00 f Hardware Test f Transmitter Test f Simulation f E e ea Number Store iz O o o SerialNumber xxx SecurityCode 15 02 f ee ees a a Reset ee oe aa Relay Hrs Starts Reset OCM Totaliser Reset Full System Reset To scroll through parameters 1 74 press MODE 1 TEST To stop scroll press CE MULTIFLEX MANUAL EDITION 2 NOV 2000 52 HYCONTROL LIMITED Larchwood House Orchard Street Redditch Worcestershire B98 7DP Tel 01527 406800 Fax 01527 406810 Web www hycontrol com Email sales hycontrol com
23. A NN ENTE A gt COMPUTER 15M CABLE 3 CORE SCREENED As only one Multiflex unit can be connected to each RS232 serial port on the computer and the transmission distance is limited this is only likely to be used for communications within a control room RS485 Bs RSS MULTIFLEX OI Seer a reece MULTIFLEX 31 PLC mee ee a aeeonee gt COMPUTER 1000M to further unit CABLE SINGLE PAIR SCREENED This option allows up to 31 Multiflex units to be connected on the same cable from a single port on the computer Therefore where multiple Multiflex units are being used this option should be used Converters Repeaters To interface to the Multiflex a computer or PLC with the required serial port will be required Usually the RS232 port will be fitted as standard with the RS485 being available as an option If the required serial option cannot be fitted signal converters and repeaters are available these will convert RS232 to RS485 and will extend considerably the transmission distances DATA COMMUNICATIONS There are at present two types of data communications available in the Multiflex Unit 1 Commissioning System This system allows the echoes being received and processed by the Multiflex to be downloaded to an IBM or compatible computer usually portable so that they can be viewed easily This system has made the use of an oscilloscope for on site commissioning unnecessary Refer to separate bulletin for software and interface
24. Elect Iss 01 MULTIFLEX PROGRAMMABLE LEVEL CONTROLLER INSTRUCTION MANUAL HYCONTROL LIMITED Larchwood House Orchard Street Redditch Worcestershire B98 7DP Tel 01527 406800 Fax 01527 406810 Web www hycontrol com Email sales hycontrol com Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 APPENDIX 1 APPENDIX 2 APPENDIX 3 APPENDIX 4 MULTIFLEX MANUAL EDITION 2 NOV 2000 MULTIFLEX USER MANUAL INDEX Introduction Installation Transceiver Mounting Transceiver Wiring Transducer Mounting Transducer Alternative Mounting Transducer Mounting Faults Transducer Stand Pipe Transducer Cable Extensions Temperature Sensor Easy Start for Liquiflex Quick Start Guide Principle of Programming Keypad Definitions To View Parameters Programming Example Programme Checking amp Correction Programming Principle of Programming Keypad Definitions Display Descriptions Security Code Application Programming Entering a New Programme Parameter Index Parameter Definitions Examples Level Measurement Mode Contents Volume Conversion Pump Control Differential Open Channel Flow Open Channel Flow with Penstock i TE Commissioning Fault Finding LINEARISATION OF SPECIAL VESSESLS OR FLUMES SERIAL COMMUNICATIONS SPECIFICATION PARAMETER SETTINGS Page j NAYANDNNDUNBWN NW CO Cw 11 12 13 14 14 14 14 15 16 17 18 19 to 34 35 35 36 37 38 39
25. Pr 9 3 75 Relay 1 energises at 3 75m to turn pump 1 on Pr 10 0 5 Relay 1 de energises at 0 5m to turn pump 1 off Pr l1l 2 Relay 2 to control on level normally de energised Pr 12 4 0 Relay 2 energises at 4 00m to turn pump 2 on Pr 13 0 75 Relay 2 de energises at 0 75m to turn pump 2 off Pr 17 7 Relay 4 assigned to indicate loss of echo to the telemetry system Pr 23 2 Switch pump 1 off on failsafe Pr 24 2 Switch pump 2 off on failsafe Pr 28 1 Analogue output to 4mA on failsafe Pr 29 30 Failsafe delay 30 seconds Pr 30 1 Analogue output to be 4 20mA fixed to Pr 4 Pr 51 2 Alternate pump duty Pr 78 Simulate the programme MULTIFLEX MANUAL 37 EDITION 2 NOV 2000 Example 4 Differential Mode SECTION 5 Pr 1 3 In the differential mode the transceiver drives two transducers to measure the difference in levels by subtracting the downstream level from the upstream level Please see connection diagram Figure 7 for transducer wiring RAKE CONTROL i j 120cm Pr 3 ae Pr 5 cm 55cm 30m 5cm Pr 10 15cm Pr 9 ci Pr 13 Pr 4 4 stop rake 4 start rake The upstream transducer should be chosen to give a positive differential value The application Start rake when differential reaches 15cm Stop rake when differential falls to 5cm Maximum differential 30cm Alarm if level on upstream side exceeds 60cm Loss of Echo indication to telemetry system 4 20
26. al parabolic or spherical bottom If the transducer is not central the transmission pulse may be reflected from the the sloping sides and not back to the transducer Under these conditions the 41 E F G H D SECTION 6 display will show LOST but the failsafe designation will operate until product returns and the system will automatically recover and track the level If the transducer cannot be mounted centrally the problem may be overcome by the installation of a target plate 5 Connect a known good transducer If this operates check the gain value by pressing the TEST key The percentage displayed ranges from 0 100 the lower the figure the better the signal strength If the gain is 50 100 check the surface on liquid applications for foam or floating debris which may cause poor echoes 6 Check that the ST6 eprom is seated correctly at U6 on the bottom PCB The keypad fails to operate 1 Check the alignment of the plug with the top PCB connectors 2 Check that the key press sequence is valid refer to Programming Section 3 Power down and wait 5 secs Power up and press MODE This should result in PROG being displayed Itis now advisable to reset the unit refer to Page 13 Analogue output is unstable 1 Connect a test meter in series with your external wiring Can fault be seen on test meter If yes then use Pr 34 to enter a stable value into the current loop in the range 4 to 20mA If th
27. ally 50 60Hz 12VA 24Vdc 25 10 9W Separate terminals Fuse Rating F5 T160mA for ac supply F6 T315mA for 24Vdc supply Range Accuracy of Change in Level Ambient Temperature Resolution Fl amp F2 T80mA Up to 15 metres 0 25 of measured distance from the transducer at constant temperature of 20 deg C or with temperature compensation implemented 40 deg C to 70 deg C 2mm or 0 1 of range whichever is the greater Analogue Output 4 20mA into 750 Ohms 16 bit Short circuit protected and opto isolated on ac powered units Not opto isolated on 24Vdc units Maximum allowable degradation of signal 2 under extremes of transient and constant conducted immunity tests to EN50082 Relay Outputs 5 multi function SPDT relays rated 8A 250Vac 30Vdc resistive with gold contacts Indication Integral 4 digit LCD 12mm high characters 5 red LED s to indicate relay status Interface 5 X 4 integral keypad with security code Failsafe High Low Hold Damping Fully adjustable Blanking Fully adjustable Transducer Type RXVI15 RXT15 RXVI5P Temperature Compensation No Yes No Frequency in KHz 41 50 41 50 41 50 Beam Angle at 3dB 10 degrees 10 degrees 10 degrees Body Material Xenoy Xenoy Xenoy Face Material Urethane Urethane Polyethylene Process Temperature 40 to 90 deg C 40 to 90 deg C 40 to 90 deg C Protection IP68 IP68 IP68 Weight Kg 2 00 2 00 2 00 NOTE The above transducers are approved for use in Hazardous
28. at medium in m sec MULTIFLEX MANUAL 30 EDITION 2 NOV 2000 SECTION 4 Miscellaneous Pr 71 Pr 72 Pr 73 Pr 74 Correction Value D 0 00 Both negative and positive values can be input This value must be entered in the units selected at Pr 2 This parameter has two uses l It can be used to correct minor reading errors on the display 2 It can be used to prevent loss of echo when the target can go further away from the transducer than the programmed distance at Pr 3 e g a When a channel floor is lower than the zero point of a V notch weir b To set an elevated zero level in a vessel which is not normally completely emptied Add the extra depth to Pr 3 and enter minus the extra depth at Pr 71 in the units selected at Pr 2 Parameter Display D 0 The system will display continually the value of Gain by entering 67 Temperature by entering 38 Analogue output by entering 34 It can be used only for commissioning as it will be lost on power down It cannot be used in OCM mode Pr 1 4 Software Revision Number Displays the revision number of the software e g UL 03 Reset Counter This count value gives the number of times that the system has been powered down or reset since the last time the counter was zeroed It is useful for checking if the power supply is erratic MULTIFLEX MANUAL 31 EDITION 2 NOV 2000 SECTION 4 Test Parameters Pr 75 Pr 76 Pr 77 Pr 78 Digital Outp
29. cable details MULTIFLEX MANUAL 49 EDITION 2 NOV 2000 APPENDIX 2 2 Polled Data Transfer This option allows and external computer to obtain data that can be used to produce any required display i e tables mimics The data is transmitted in a format that can be understood and processed by any programmable device using Higher Low level languages The data obtained depends on the application programmed LEVEL a Level b Displayed value volume tonnage etc c Rate of Change of Level d Temperature e Status of 4 relays f Loss of Transducer and Loss of Echo DISTANCE a Distance b Displayed value ullage etc c Rate of Change of Level d Temperature e Status of 4 relays f Loss of Transducer and Loss of Echo DIFFERENTIAL a Upstream level b Downstream level c Difference of levels d Temperature e Status of 4 relays f Loss of Transducer and Loss of Echo OCM a Flow rate b Head c Totaliser value d Temperature e Status of 4 relays f Loss of Transducer and Loss of Echo To use this option will require software to be written for the PLC or computer that requested the data Details of the transmission protocols and hardware connections are given in a separate bulletin MULTIFLEX MANUAL EDITION 2 NOV 2000 50 APPENDIX 3 SPECIFICATION Transceiver Enclosure IP65 and NEMA 4X polycarbonate hinged lid Dimensions 240H X 160W X 90D mm Weight 1 75Kg Power Supply 110 230Vac 10 selected automatic
30. d to programme the operation of the instrument These keys also have secondary functions indicated above them See Figure 1 enabling the operator to view the results being obtained by the instrument during its normal RUN cycle Primary Key Functions 0 9 Numerical Values Decimal Point Negative value also used to slow down simulation CE Clear Entry also used to leave test functions Pr 75 to Pr 78 Returns display to normal RUN mode after viewing secondary functions also speeds up simulation Pr 78 MODE Alternates between RUN and PROG mode TEST Displays gain or confidence in RUN mode and allows parameter interrogation and simulation hold in PROG mode A Increase parameter number also control of simulation direction y Decrease parameter number also control of simulation direction DSP Display parameter number value alternately ENT Enter a new value or initiate a system test under Pr 75 to Pr 78 Active Secondary Key Functions During normal RUN mode the operator can obtain the data defined as secondary function without interrupting normal operation by pressing the appropriate key i e Keys 1 4 Show high totaliser low totaliser head and flow when in the OCM mode head is water level Key 5 Relay 1 Hours energised Key 6 Relay 2 Hours energised Key 7 Relay 3 Hours energised Key 8 Relay 4 Hours energised CE Relay 5 Hours energised Key 9 Relay 1 Number of times energised Key 0 Relay
31. de request No value Numerical overflow of display i e value too large to display Negative numerical overflow Check that Pr 43 is correct Resetting to factory parameters Resetting totalisers Loss of echo System performing a requested test Gain value being displayed Head Flow Totaliser high 4 digits 9999 max reading Totaliser low 4 digits 9999 max reading Temperature C Distance Analogue output SECTION 3 Security Code The programme includes security code protection Any operator can display the value of a parameter but any attempt to enter a new value or perform a test will result in the security code being requested The security code is requested by the prompt of COdE if the code is not entered correctly this prompt is re displayed Once the code has been input correctly it will not be required again whilst the system remains in the PROG mode The factory set value is 9753 A new customer s security code comprising 4 numerical digits can be entered via Pr 96 providing the unit is in programme mode The range of acceptable values is 1000 to 9999 If an invalid code is entered the instrument will default to a code number 9753 The code number is scrambled immediately on entry If you forget your security code ring your supplier for advice quoting the number stored in Pr 96 MULTIFLEX MANUAL 15 EDITION 2 NOV 2000 SECTION 3 Application Programming The programming is con
32. e output is still unstable disconnect external wiring and connect meter across terminals 25 and 26 and repeat Pr 34 test If still unstable contact Hycontrol If stable check wiring and meters etc Analogue has no output 1 Check programme value at Pr 30 Value 1 6 2 Insert test meter in series with the output Under Pr 34 enter a fixed output If still no output then connect test meter directly across terminals 25 and 26 repeat test under Pr 34 If no value is read at terminals 25 to 26 contact Hycontrol Analogue output is less than 20 at maximum display reading 1 The load attached to the output may be too high To check this disconnect all the external wiring and see if it now reads 20 The output is capable of driving 20mA into 750 Ohms Analogue output does not correspond to application 1 Check that the correct options Pr 30 to Pr 33 have been selected 2 Check that the correct span Pr 4 has been input this is the value over which the analogue will be spanned unless a separate entry has been made at Pr 32 or Pr 33 MULTIFLEX MANUAL 42 EDITION 2 NOV 2000 SECTION 6 J Display stays high 1 2 a Check for obstructions If the transducer is mounted in a standpipe check for rough edges at connection with the vessel refer to Page 6 If there are no close in obstructions ensure that the isolation kit Page 4 is fitted on the transducer and the transducer is mounted correctly The isolation k
33. ed for 9600 baud rate 8 bit data 1 stop bit and even parity The user s system must be configured to suit this Serial Communication Enable Channel RS232 D 1 Channel 1 RS232 1 Commissioning System 2 Polled data transfer Channel 2 RS485 Is permanently enabled for polled data transfer Station Number D 0 For polled data transfer the unit must have a station number assigned to it in the range 1 31 which must be unique to the unit Echo Detection Pr 68 Pr 69 Pr 70 Echo Processing Algorithm D 1 The system has two echo extraction techniques which will determine the true echo for the majority of applications where an echo is present Enter 1 For solids applications This technique looks for the highest level within the transducer view Enter 2 For liquids This technique positions a narrow window around the target it is tracking to enable it to ignore a large amount of spurious noise Check Search D 1 Available only if Pr 68 is set to 2 It enables the instrument to look outside its window at intervals to check that there are no other relevant echos within the transducer s view Enter 1 Off 2 On Check search should be used where fill rates can sometimes be greater than that entered at Pr 6 or if the transducer is liable to be submerged Echo Velocity D 344 1 i e speed of sound in m sec through air at 20 C If operating through any other medium enter the speed of sound through th
34. el application including setting a high alarm Having changed the value in Pr 1 to 1 level Press A Display A Change A Change A Display A Display Press Pr 08 Change A Change A Change Pr 02 2 Pr 03 1 5 Pr 04 1 0 Pr 05 0 5 Pr 06 1 0 Pr 08 1 Pr 09 0 7 Pr 10 0 5 Relay 1 Set E 1 Reset 0 5 Pr 10 0 7 Pr 9 units in metres empty distance operational span blanking distance rate of change of level in metres relay 1 designated normally energised relay 1 set relay 1 re set MODE to return to normal running For a full description of parameter options refer to Section 4 Note The display does not show the decimal point until the first decimal figure is keyed in MULTIFLEX MANUAL EDITION 2 NOV 2000 SECTION 2 Programme Checking To check that the previous programme functions properly hold the transducer approximately 1 5m above a surface the display will read approximately zero If it displays LOST it is because the transducer is more than the 1 5 metre distance to furthest point from your target Go closer and wait for LOST to change to 0 00 and then to a level display By slowly moving the transducer towards the surface the display will increase simulating a rising level When the display exceeds 0 7 the relay will switch indicated by the LED RELAY 1 and if the transducer is then raised the display will decrease and the relay will reset below 0 5
35. ential in levels 2 upstream level Pr 4 represents the difference between upstream empty distance Pr 3 and maximum upstream level 3 downstream level Pr 4 represents the difference between downstream empty distance Pr 3 and maximum downstream level In OCM mode Pr 1 4 Enter 1 for measured head depth of liquid 2 for calculated flow MULTIFLEX MANUAL 23 EDITION 2 NOV 2000 SECTION 4 Pr 32 Analogue Datum D 0 00 If an analogue output is required with a zero different from the measurement zero Pr 3 then an offset defined as a percentage of the measurement span flow volume etc can be entered here On a level application 4mA is shifted upwards Pr 33 Analogue Span D 100 If an analogue output is required with a span different to that defined for the measurement Pr 4 then an alternative value defined as a percentage of the measurement span flow volume etc can be entered here A value of zero is ignored On a level application 20mA is shifted downwards Pr 34 Analogue Output Test D 0 00 This parameter can be used to examine the last analogue output value set up by the instrument Also any value in the analogue output range can be entered for loading to the current output and can be measured at the output terminals to test the external analogue circuitry Temperature Compensation Pr 37 Temperature Sensor Enable D 1 1 No sensor fitted 2 Sensor fitted Pr 38 Compensating Temperature
36. erator of the instrument It may be easier to read these in conjunction with the application examples on pages 35 to 40 NOTE D factory default entry for that parameter Basic Set up Pr 1 Pr 2 Basic Application D 2 Enter 1 Level Measurement 2 Distance Measurement 3 Differential Level Measurement DLD 4 Open Channel Flow Metering OCM Calibration Display Units D 2 Enter 1 Feet 2 Metres To display in percent of span 3 Inches set Pr 40 to 1 4 Centimetres The system will be set to work in the specified units but the display can be made to display a percentage a converted value or a volume Pr 40 NOTE Any subsequent change of units in Pr 2 i e Pr 2 1 4 will reset parameters Pr 3 Pr 4 Pr 3 to Pr 6 to new units and all other parameters will default to factory resets Empty Distance D 15 00 The distance from the face of transducer to the furthest point away usually the bottom of the container or channel Enter the distance in the units selected in Pr 2 Resolution is a function of this parameter Operational Span D 15 00 The distance between the furthest and nearest points over which measurement is required Enter the distance in the units selected in Pr 2 For differential applications the value required is the maximum difference in the levels to be measured MULTIFLEX MANUAL 19 EDITION 2 NOV 2000 SECTION 4 Pr 5 Blocking or Blanking Zone D 0 50 The distance
37. first select alternating duty options 2 to 5 in Pr 51 depending on the number of pumps installed Enter the number of starts assigned to Pump 1 before the sequence switches to allow the other pumps to be exercised in turn Pr 54 Pump Tolerance D 1 In applications where a greasy topped liquid is being pumped problems may occur due to build up of grease at the levels where pumping starts It is usually necessary for this to be cleared manually To avoid this varying the turn on point for the pumps by 10 of the set point value causes the build up to occur over a larger area significantly reducing the maintenance problem Enter 1 No tolerance applied to pumps 2 Tolerance applied to all pumps NOTE The pump reset points Pr 10 13 16 19 22 must be outside the 10 tolerance band of the set points and outside blanking Pr 05 MULTIFLEX MANUAL 28 EDITION 2 NOV 2000 SECTION 4 Pr 55 Pump Maintenance Dropout D 0 The removal of one pump for maintenance can necessitate a great deal of readjustment to ensure correct control Pr 55 removes this need by allowing one pump to be removed without affecting the control levels Pumps are re assigned downwards so that the highest level is not used therefore normal control levels are maintained for lower level settings Enter 0 All pumps in 1 Drop out pump 1 2 Drop out pump 2 3 Drop out pump 3 4 Drop out pump 4 5 Drop out pump 5 NOTE a The system assumes that the lo
38. imit set by Pr 9 and a low limit set by Pr 10 If the flow exceeds the value in Pr 9 relay 2 drives the penstock down If the flow is below the value in Pr 10 relay 1 drives the penstock up MULTIFLEX MANUAL 21 EDITION 2 NOV 2000 SECTION 4 Pump Controls Pr 51 Pr 52 Pr 53 Pump Sequencing D 1 In order to even out the wear of pumps it is possible to alternate 2 pumps or rotate the lead pump for 3 4 or 5 pumps Pr 52 must 1 Enter 1 Sequence by set points i e no alternation 2 Alternate RLI and RL2 1 2 2 1 1 2 etc 3 Rotate RLI RL2 and RL3 1 2 3 2 3 1 3 1 2 1 2 3 etc 4 Rotate RL1 RL2 RL3 and RL4 1 2 3 4 2 3 4 1 3 4 1 2 etc 5 Rotate RL1 RL2 RL3 RL4 and RLS 1 2 3 4 5 2 3 4 5 1 etc Duty Assist Standby Pump Control D 1 Duty assist is where pumps are switched on by set point and kept on to assist earlier pumps Duty standby is where only one of the pumps specified for duty can be on at a time i e when the set point for the second pump is reached and it switches on the first pump will switch off Enter 1 Duty assist operation 2 Duty standby on pumps and 2 3 Duty standby on pumps 1 2 and 3 4 Duty standby on pumps 1 2 3 and 4 5 Duty standby on pumps 1 2 3 4 and 5 The turn off points for the pumps can all be the same or they can be different depending on the chosen Set and Reset values for each relay Pump Exerciser D 1 To use this facility
39. it should enable the transducer to move slightly it should not be solid Not applicable if the transducer has an integral flange May be caused by rate of change Pr 6 being too low Check the entry at Pr 6 This should not be less than the factory default value K Display is lower than expected Check that Pr 3 and 4 are correct for the application It can be caused when the level rises into the blanking zone Pr 5 The system may lock up on a multiple echo and track this value when the level falls The correct reading can be re established by pressure MODE 1 MODE but to effect a permanent cure the transducer should be raised to prevent the level encroaching into blanking It can also be caused by poor surface quality On liquid applications this may be foam or turbulence and on solids a very irregular surface The level may be moving at a faster rate than that programmed in Pr 6 The rate of change value should be increased to match the true rate L Display changes in steps 1 Increase rate of change at Pr 6 to match the true rate M Display is inaccurate ae a iL Check the empty distance at Pr 3 Check the vessel dimensions and any volume conversion factor used at Pr 43 Temperature compensation may be required The presence of vapours will affect accuracy If they are constant over the range the speed of sound can be adjusted at Pr 70 Check that the echo processing routines at Pr 68 amp 69 are correct for
40. l measurement Programme in metres Transducer to zero level 9 metres The span over which measurement is required Blanking zone into which level should not rise The rate of change of level will not exceed 10 metres per minute Relay 1 to alarm on volume normally energised Relay 1 de energises at 90m3 High alarm on Relay 1 re energises at 85m to clear high alarm Relay 2 to alarm on volume normally energised Relay 2 de energises at 10m3 Low alarm on Relay 2 re energises at 15m to clear low alarm Analogue output to be 4 20mA fixed to span Define vessel as conical bottomed Define the depth of cone as 2 0m Define total capacity 120m3 Simulate the programme 36 SECTION 5 Example 3 Pump Control Pr 1 1 ici 0 5m Pr 5 A Start 2 4 00 Pr 12 5 4m Pr 3 Start 1 3 75 Pr 9 Stop 2 0 75 Pr 13 Stop 1 f 0 5 Pr 10 The application 2 pump control pump down in a wet well duty assist operation Alternate pump duty to reduce wear 4 20mA to remote indicator Loss of Echo indication to telemetry Display actual level in metres Pri 1 Defines level measurement Pr 2 2 Programme in metres Pr 3 5 4 Transducer to zero level 5 4m Pr 4 4 5 The span over which measurement is required Pr 5 0 5 Blanking into which the liquid will not rise Pr 6 1 5 Max rate of level change 1 5m min Pr 8 2 Relay 1 control on level normally de energised
41. lay 5 Reset Failsafe R1 Failsafe R2 Failsafe R3 Failsafe R4 Failsafe R5 Failsafe Analogue Failsafe Time Delay Analogue Output Analogue Options Analogue Datum Analogue Span Analogue Test Probe enable Temp Compensation Probe test Vessel shape Dimension H Dimension L Display Conversion Volume Linearisation SECTION 4 PARAMETER INDEX Open Channel Flow Pr 45 Flow exponent Pr 46 Max Flow Rate Pr 47 Time Base for Flow Rate Pr 48 Totalise Display Conversion Pr 49 Control of Ext Counter Pr 50 Penstock Control Pump Controls Pr 51 Pr 52 Pr 53 Pr 54 Pr 55 Pr 56 Pr 57 Serial Communications Pr 62 Pr 63 Echo Detection Pr 68 Pr 69 Pr 70 Miscellaneous Pr 71 Pr 72 Pr 73 Pr 74 Test Parameters Pr 75 Pr 76 Pr 77 Pr 78 Number Store Pr 95 Pr 96 Reset Pr 97 Pr 98 Pr 99 Pump Sequence Duty Standby Pump Exerciser Pump Tolerance Pump Maintenance Run on Interval Run on Time Serial Comms enable Station No Echo Selection Algorithm Check Search Echo Velocity Correction Value Parameter Display Software Revision Number Reset Counter Digital Output Set HardwareTest Transmitter Test Simulation Serial Number Store Security Code Store Relay Hours Starts Totaliser Reset OCM Totaliser Reset Full System Reset All other parameters are unused and should not be changed SECTION 4 PARAMETER DEFINITIONS The parameters define all the options that are available to the op
42. ll speed up initially to catch up with the totalised flow MULTIFLEX MANUAL 26 EDITION 2 NOV 2000 Pr 49 Pr 50 SECTION 4 Control External Counter D 0 00 If Pr 20 is set to 5 Totaliser Drive then enter the amount which each relay trip is to represent in totalised units See example 5 on page 39 e g If litres entered at Pr 46 and Pr 48 is 0 then to totalise in cubic metres enter 1000 If an entry is made at Pr 48 for the internal totaliser then to use the same unit for an external counter enter l After making entries in Pr 48 and or Pr 49 go to Pr 98 to clear and initiate totaliser Penstock Control D 1 Enter 1 Off 2 On The control system uses relays 1 and 2 to drive a penstock up and down respectively to maintain the flow in a channel within certain limits Normal connections are to the relay common and normally open contacts The designations for relays 1 and 2 are ignored but the following values must be set Pr 9 Top flow limit In units defined by Pr 10 Bottom flow limit Pr 46 entry Pr 12 Width of drive pulse seconds Pr 13 Time between drive pulses seconds See example 6 on page 40 The penstock drive consists of a pulse train of variable time base which drives the penstock up and down The time a is set by Pr 12 and b is set by Pr 13 both in seconds this allows any shape drive train to be defined The control will maintain the flow between two limits a high l
43. lt in the external wiring Check that the supply is within specified limits refer to page 3 Check for metal debris under the bottom PCB C The system powers up but displays 8888 1 Power down and check that the main eprom is fitted correctly at U7 on the top PCB D The display shows LOST 1 a b c d MULTIFLEX MANUAL EDITION 2 NOV 2000 Check transducer wiring and connections to the instrument refer to Pages 3 or 7 Note the different connections for the temperature compensated transducer RXT15 Series Check whether the neon adjacent to terminal 22 is flashing If it is proceed to 3 If not then Disconnect the transducer If the neon now flashes there is a short circuit in the cabling If it does not flash the transmission fuse may have blown Check F1 and F2 T80mA fuses on the bottom PCB If the unit still shows LOST check that you can hear the transducer clicking when close to the ear If you have extended the transducer cable disconnect and remove the transducer and connect it direct to the instrument If the unit now operates re check the extension cabling connections and routing avoiding power cables Re install the transducer and check its aiming If the transducer does not click proceed to 5 Is the target within the empty distance specified at Pr 3 This is particularly important if the temperature varies and no compensation is applied Is the vessel empty with a conic
44. m Table 1 and press ENT Continue for all points which you need to use up to A16 Any points not used must be left at the default of 255 MULTIFLEX MANUAL 47 EDITION 2 NOV 2000 APPENDIX 1 Press DSP to display the last A number used then Press V several times to return to Al Press to show b1 Press DSP to show value of b1 default 0 Key in the value 0 from Table 1 and press ENT Press DSP to show b1 again Press A to show b2 Press DSP to show value of b2 default 0 Key in the value 11 from Table 1 accepted as 1 1 Continue for all points which you need to use up to 16 Any points not used must be left at the default of 0 Press TEST then DSP to show Pr 44 Leave the linearisation part of the programme by displaying any other parameter or go into RUN mode EXAMPLE Vessel Mapping Transducer 110 of level 100 90 80 70 Vessel 60 R symmetrical 50 about c 1 40 30 20 Required Values Point A b Number Head or of flow or Level volume AADNBRWNe MULTIFLEX MANUAL 48 EDITION 2 NOV 2000 APPENDIX 2 SERIAL COMMUNICATIONS The Multiflex is fitted with two serial communications channels as standard Channel 1 has been built for RS232 and Channel 2 for RS485 Connectors are via TB5 on the top PCB 32 33 34 35 36 Rx Tx GNDSCR SCR RS232 1 RS232 MULTIFLEX PLC E E mnra aero op E
45. mA signal proportional to differential Pr 1 Pr 2 Pr 3 Pr 4 Pr 5 Pr 6 Pr 8 Pr 9 Pr 10 Pr 11 Pr 12 Pr 13 Pr 17 Pr 23 Pr 24 Pr 28 Pr 29 Pr 30 Pr 97 MULTIFLEX MANUAL EDITION 2 NOV 2000 3 4 120 30 50 100 3 15 5 5 60 55 To define differential level measurement As distances are small programme in cms The distance from bottom of channel to transducers in cms The maximum differential span in cms Blanking zone in cms The maximum rate of change of level in cms Relay 1 designated for differential control Relay 1 energises at differential 15cm to start rake Relay 1 de energises at differential 5cm to stop rake Relay 2 to alarm on an upstream level Relay 2 de energises at 60cm high alarm Relay 2 re energises at 55cm to clear high alarm Relay 4 assigned to indicate loss of echo to the telemetry system Switch rake off on failsafe Hold high level alarm indication on failsafe Analogue output holds on failsafe Failsafe time is left at default of 120 seconds 4 20mA output fixed to span Pr 4 To clear and initiate relay totalisers hrs run no of starts 38 Example 5 SECTION 5 Open Channel Flowmeter Pr 1 4 Transducer position The application 3 4 times max head 4 90 120cm___ Rectangular flume with a maximum flow of 39 litres per second at 30cm head Loss of Echo indication to telemetry system 4 20mA output proportional to flow Totalise
46. n the block and point number and the value ENT Enters a new value TEST Exits Pr 44 and returns the operator to the normal programme 0 9 The number keys and decimal point are used to input new values Point numbers can only be changed by using the A and W keys Pr 44 Inputting Values When a new value is to be entered first display the old value and then input the new and press ENT the system will display the value it has stored in memory The values must be input in a specific form i Head Level Designated A These values must be a whole number Decimal places will be ignored i e 11 will be accepted as 11 22 3 will be accepted as 223 The allowable range of values is 0 250 any unused data values must be set to 255 PARAMETER RESET LOAD 255 TO ALL DATA VALUES 2 Flow Volume designated b These values are expected to contain one decimal place therefore it it is not necessary to input the decimal place but the procedure will display it i e 10 will be accepted as 1 0 100 or 10 0 will be accepted as 10 0 The allowance range of values is 0 250 PARAMETER RESET LOADS 0 TO ALL DATA VALUES NOTE 1 As time is required to enter all the date the standard keypad time outs are suspended 2 We recommend that the required values are written in tabular form as shown before programming commences Then enter all Block A values before entering all Block b values MULTIFLEX MANUAL 46 EDITION
47. not done this before refer back to Section 2 Easy Start 1 Designing a Programme From the information contained within this manual and the knowledge of the application produce on paper the correct values for the parameters required use page 52 for the parameter entries To help you with this see the examples in Section 5 on pages 35 to 40 Details of all the parameter options are listed on pages 19 to 34 MULTIFLEX MANUAL 16 EDITION 2 NOV 2000 SECTION 3 2 Entering a new Programme Sequence to enter a new programme or to modify the existing one a Press MODE When display shows PROG press 1 and then press DSP followed by ENT b Display will show COdE and the security code must be entered factory default is 9753 For a new code see page 15 c Display will now show the value of Pr 01 or the last Pr number used indicating that the correct security code has been entered If the unit is being programmed for a new application it is recommended that all parameters are reset to the factory programmed values as follows d Display Pr 99 Press DSP to show Press CE to obtain a clear display Press ENT and the display will show P rES then t rES and then Press DSP and enter Pr 01 Press DSP to display the value of Pr 01 OVO Po If a modification is being made to an existing programme then the sequence re commences here e The new values for any parameter should be input checking
48. nown The system allows the entry of a volume or flow profile at up to 16 points of level to be entered into memory that is then used to produce the required flow or volume values when in RUN mode The required profile is stored in parameter 44 Before proceeding it is useful to write down a table of the point numbers and A b values to facilitate programming FLOW When using the facility for flow it is enabled by Pr 45 4 The profile is stored as percentage of head against percentage of flow See example on page 47 VOLUME When using the facility for volume it is enabled by Pr 40 8 the profile is stored as percentage of level against percentage of the total volume See example on page 48 PROCEDURE The procedure uses a 16 point curve to map the profile but all 16 points do not have to be used Head or Level Designated A Flow or Volume Designated b The profile data is input into Pr 44 which when accessed Pr 44 DSP ENT will display A1 which means the data pointer is at value 1 on A data The values can be displayed and changed as required MULTIFLEX MANUAL 45 EDITION 2 NOV 2000 APPENDIX 1 Pr 44 Keyboard Controls Toggles the display between date blocks A and b A Increases and decreases the point number when either the point number v or its value is displayed CE Clears the display when inputting a new value DSP Toggles the display betwee
49. proportional to level Prl 1 Defines level measurement Pr2 2 Programme units are metres Pr3 4 Distance from transducer to zero level Pr4 3 The span based on zero level Pr5 05 Blanking zone into which level should not rise Pr6 O 1 The maximum rate of change of liquid level in metres minute Pr 8 1 Relay 1 to alarm on level normally energised Pr 9 2 8 Relay 1 to de energise at 2 8 metres to indicate high alarm Pr l0 2 6 Relay 1 to re energise at 2 6 metres to clear the high alarm Pr 23 3 Hold alarm indication relay 1 on failsafe Pr 28 3 Analogue output holds on failsafe Pr 30 1 4 20mA output fixed to span Pr 4 Pr 78 Simulate the programme MULTIFLEX MANUAL 35 EDITION 2 NOV 2000 Example 2 SECTION 5 Contents Measurement with Volumetric Conversion Pr 1 1 9 0m Pr 3 The application 0 5m _ Pr 5 Set High Alarm Pr 9 i Reset High Alarm Pr 10 8 5m Pr 4 Reset Low Alarm Pr 13 1 i 2 0m Pr 41 Set Low Alarm Pr 12 To measure the level in a conical bottomed cylindrical tank Dimensions as shown Total volume of tank 120m when level is 8 5m Output display in m3 Analogue output to be 4 20mA proportional to volume in tank High alarm at 90m volume Low alarm at 10m volume Pr 1 Pr 2 Pr 3 Pr 4 Pr 5 Pr 6 Pr 8 Pr 9 Pr 10 Pr 11 Pr 12 Pr 13 Pr 30 Pr 40 Pr 41 Pr 43 Pr 78 MULTIFLEX MANUAL EDITION 2 NOV 2000 Defines leve
50. r must be mounted upstream of the flume or weir as detailed in BS3680 usually 3 or 4 times maximum head MULTIFLEX MANUAL 5 EDITION 2 NOV 2000 SECTION 1 e Figure 5 N lt a Z Q m lt lt gt DN Z ee cal Q A Nn Z _ 4 Q e ez a T A ln e gt lt CAUTION KEEP TRANSDUCERS AND TEMPERATURE COMPENSATION PROBES OUT OF DIRECT HOLES IN THE TANK SUNLIGHT IN STANDPIPES AVOID INFLOWS OR OTHER OBSTRUCTIONS PERPENDICULAR TO LIQUID In many applications access to a vessel must be made via a standpipe It is necessary to observe some basic rules when fitting transducers into standpipes Standpipe Installations Parameter 5 should always be set at least 150mm longer than the length of the standpipe BLANKING should be in accordance with the following table STANDPIPE DIMENSIONS S 3 e gt p 5 Q ge g o gt amp oO Ka D e a f S oO gt amp amp S 2 ea E CS Sof EEEE 2 z B CHS oe OO se 8S T g Sooo ar 5 7 slam om SOT LO WO 2 no N ES 3s g E OA a E gf las D a v 3 6 S F 5 D o S g 2c E o So Hoe S bre 5 z2 g v A x f NN NN ATN 3 a j a ESEBE Fee 3 3 geeee Bet Ss Bl nooo S gt wond 5na S S N an NM At an Ss Cy Ne N
51. run mode To change a Parameter Programming Press MODE to display PROG Whilst PROG is displayed press 1 and the display will show either Pr 01 or previous Pr number If not Pr 01 then press 1 to obtain display of Pr 01 Press DSP to display the value of Pr 01 Press ENT and the display will show COdE requesting that a security code is entered Press 9753 to enter the factory set security code See Page 15 to change code Press ENT and the display will blink and show either the default value of Pr 01 which is 2 or any other value previously programmed into it The unit is now ready to be programmed NOTE Whenever COdE is displayed re enter the security code In the previous programme the display is now showing the value entered in Pr 01 To change the value of this entry press the new value required and press ENT For our example press 1 and ENT and the value of Pr 01 will change to 1 which means it is in level mode Le measuring product height above datum Then using the A key move to the other parameters that require changing To change the value of any other parameter either use the A key to move to higher Pr numbers or press DSP and then enter the Pr number required and press DSP again to display its value MULTIFLEX MANUAL 11 EDITION 2 NOV 2000 Programming Example SECTION 2 The following example shows how to continue programming from the previous stage to achieve a simple lev
52. that the value is stored correctly The parameters can be accessed sequentially using A and V keys or individually by entering the required parameter number f Before entering the RUN mode the programme can be checked by pressing Pr 78 then DSP then ENT Multiflex will now simulate the operating programme except in differential mode providing display analogue output and relay functions CAUTION All outputs will work under simulation so ensure that external connections will not cause damage g Press CE to leave simulation h Press TEST to freeze and unfreeze simulation i When the programme is complete and does not require further modification press MODE to return to the RUN condition MULTIFLEX MANUAL 17 EDITION 2 NOV 2000 Basic Set up Pr 1 Pr 2 Pr 3 Pr 4 Pr 5 Pr 6 Pr 7 Relays Pr 8 Pr 9 Pr 10 Pr 11 Pr 12 Pr 13 Pr 14 Pr 15 Pr 16 Pr 17 Pr 18 Pr 19 Pr 20 Pr 21 Pr 22 Failsafe Pr 23 Pr 24 Pr 25 Pr 26 Pr 27 Pr 28 Pr 29 Analogue Pr 30 Pr 31 Pr 32 Pr 33 Pr 34 Temperature Pr 37 Pr 38 Pr 39 Volume Conversion Pr 40 Pr 41 Pr 42 Pr 43 Pr 44 NOTE MULTIFLEX MANUAL EDITION 2 NOV 2000 Application Units Empty Distance Operational Span Blanking Distance Rate of change Decimal Display Relay 1 Relay 1 Set Relay Reset Relay 2 Relay 2 Set Relay 2 Reset Relay 3 Relay 3 Set Relay 3 Reset Relay 4 Relay 4 Set Relay 4 Reset Relay 5 Relay 5 Set Re
53. the screen Press Enter to request COdE Enter 9753 Press Enter to show t rES followed by Clear the OCM Totaliser i e HI TO and LO TO D The totalisers are cleared by entering Pr 98 and DSP to show _ Press CE to clear the screen Press Enter to request COdE Enter 9753 Press Enter to show t rES followed by MULTIFLEX MANUAL 33 EDITION 2 NOV 2000 SECTION 4 Pr 99 Return to Factory Default Press Press Press Press Press Press Press Press Press MODE 4 99 DSP CE ENT 9753 DSP 1 to display PROG immediately to display Pr 01 or previous Pr number to display Pr 99 to display to clear the display to display COdE requesting the security code see note and ENT to display P rES followed by t rES and then to display Pr 99 the new programme can now be entered NOTE Enter your own security code number if you have changed it from factory setting of 9753 MULTIFLEX MANUAL EDITION 2 NOV 2000 34 SECTION 5 APPLICATION EXAMPLES Example 1 Level Measurement Mode Pr 1 1 Applications for this mode are Level Measurement Contents Measurement and Pump Control 0 5m Pr 5 A Set Alarm 2 6m 2 8m Pr 9 ie The application To measure and display the level of liquid in metres Maximum level 3m Fill rate 0 1 metre min Alarm if level exceeds 2 8 metres 4 20mA signal
54. trolled by the parameters detailed later in this section Programming is easy to follow because the parameters available to the programmer fall into distinct groups Pr l Pr 7 Basic set up Pr 8 Pr 22 Relays 1 to 5 designation and settings Pr 23 Pr 29 Failsafe operation Pr 30 Pr 34 Set the analogue output Pr 37 Pr 39 Temperature compensation Pr 40 Pr 44 Volume conversion Pr 45 Pr 50 Open Channel Flow Metering Pr 51 Pr 57 Specialised Pump Control Pr 62 Pr 63 Serial Communications Pr 68 Pr 70 Select echo detection and processing Pr 71 Pr 74 Miscellaneous Pr 75 Pr 78 Test Parameters Pr 95 Pr 96 Number Stores Pr 97 Pr 99 Resets It can be seen from the above which distinct groups of parameters need to be considered for a particular application For instance in an application to measure level it may be necessary to consider only Pr 1 to Pr 29 which are relative to basic set up relays and failsafe It is good practice to carry out a programme reset on a new application before starting programming as this will return all parameters to factory defaults and any parameters which are not required for the new application will remain at default ensuring that the programme runs correctly Default values for each parameter are shown in the parameter definition Section 4 and in the Parameter Setting table Page 52 Programming The following is the programming sequence to set up a unit for operation If you have
55. us readings of High total Low total Head and Flow can be obtained by pressing keys 1 to 4 The display will revert back to Flow after 15 seconds 39 SECTION 5 Example 6 Open Channel Flowmeter With Penstock Control Pr 1 4 The application As example 5 but additionally to control a penstock via relays 1 and 2 to modulate flow between 25 and 30 litres per second ENTER Pr 1 Pr 6 as example 5 then go to Pr 9 Pr 9 30 Defines top flow limit 30 litres per second Pr 10 25 Defines low flow limit 25 litres per second Pr 12 8 Duration of penstock drive pulse is 8 seconds Pr 13 4 Time between drive pulses is 4 seconds ENTER Pr 17 Pr 49 as example 5 then go to Pr 50 Pr 50 2 To initiate penstock control ENTER Pr 78 as example 5 ENTER Pr 98 as example 5 MULTIFLEX MANUAL 40 EDITION 2 NOV 2000 SECTION 6 FAULT FINDING amp COMMISSIONING GUIDE We recommend that you list all your application programme parameters before proceeding A The display is blank l e d s are unlit neon not firing 2 3 Ensure that power is being supplied to the unit and that wiring is correct refer to Pages 3 or 7 Check fuses F5 AC or F6 DC Check that the supply is within specified limits refer to Page 3 B The fuse blows continually 1 2 3 Power down and fit a new fuse refer to Page 3 Disconnect all cabling from the unit except power if the fuse does not blow there is a fau
56. uts D 0 To aid commissioning and the testing of external wiring when in PROG mode it is possible to define the status of all five relays Press DSP then Enter O To de energise all relays ADD 1 To energise relay 1 ADD 2 To energise relay 2 ADD 4 Toenergise relay 3 ADD 8 Toenergise relay 4 ADD 16 Toenergise relay 5 e g To energise relays 2 and 5 enter 18 The defined relay state will be maintained until over written with another entry or until PROG mode times out 6 minutes The time period can be extended by pressing any key during this period to reset the time out counter Hardware Test Press DSP then ENT to test LEDs LCD and relays The LCD will flash all segments and the LEDs and relays will energise momentarily in sequence Press CE to end the test or let it time out CAUTION USING THIS PARAMETER WILL ENERGISE ALL RELAYS AND WILL OPERATE ANY WIRED IN CONTROLS Transmitter Test Press DSP then ENT the transmitter will pulse continuously made visible by the neon By the use of an oscilloscope the return echo can be observed if required Also useful to ascertain if a transducer is correctly connected as it will click repeatedly Press CE to end Simulation The value displayed will depend on the value set in Pr 1 Press ENT to simulate the operation of the instrument as set up between blanking Pr 5 and empty distance Pr 3 The display will depend on mode set in Pr 1
57. wer numbered pumps turn on first b CAUTION A PUMP NOT INCLUDED IN AN ALTERNATING SEQUENCE BUT PROGRAMMED INTO THE FIXED PART OF THE SEQUENCE WILL BE SUBSTITUTED INTO THE ALTERN ATING SEQUENCE TO REPLACE A PUMP DROPPED OUT c This feature should not be used if the relays are being used for a mixture of pump control and alarm functions Pr 56 Pump Run on Interval D 0 00 When submersible pumps are used it may be necessary to pump down occasionally to clear the sludge from the bottom of the well This feature is controlled by Pr 56 and Pr 57 Once in every interval defined by Pr 56 the pump will run on for the time period defined by Pr 57 Enter the time interval in hours between each run on cycle Pr 57 Pump Run on Time D 0 Enter the pump running time in seconds Maximum 120 seconds Only one run on cycle occurs per interval as set by Pr 56 NOTE a Caution is required when choosing a value for pump run on time as extended pump run on can lead to cavitation causing air locks or pump damage b As overflow can occur do not use pump run on for pump up operation leave Pr 56 and Pr 57 at zero c Care should be taken if pump sequence and pump run on are defined together as pump run on will be assigned to the last pump to turn off which could be any of those in the sequence MULTIFLEX MANUAL 29 EDITION 2 NOV 2000 SECTION 4 Serial Communications Pr 62 Pr 63 The serial communication ports have been configur
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