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1. 1 to 5 A B or C the status empty or type of card fitted is displayed Example of cards fitted IA Manifold Hzv Indicating the first slot has a Frequency Card set up for Manifold Operation in Hz u 1B Manifold Hzv Channel 2 as above IC Manifold Hzv Channel 3 as above 2A Ana Input Slot 2 has an Analogue input card fitted 2B Empty Indicating no further options in this slot 2C Empty 3A Relay Slot 3 has a relay card fitted the number of relays depends on those fitted 3B Empty 3C Empty 4A Empty 4B Empty 4C Empty 5A Empty 5B Empty 5C Empty Each card and alpha identifier will depend on the card and its function The user can use this information to check the integrity of the card fitted its operation and the fact that it is communication with the main hub Page 9 LMM Designs User Manual Multiflow 2 FREQUENCY CARD EDIT CURVES This section describes how to program any of the potential curves in the system 1 Display shows EDIT CURVE 1 or 2 or 3 2 Press ALTER to display the first point of calibration Then use the w keys to select the required calibration point to be entered or altered The left hand display will always show the curve and point number i e C the right hand display will show the units i e Hz Hzv L M etc This label can be cahnged by pressing the SHIFT then UNIT key 3 To enter alter data either press the CLEAR key or enter a numeric value The display will show SET on the left indicatin2. Rating 0 25A at 240Vac Power supply A mains input or dc input can be used to supply the LMM The 110 240Vac is selectable on a switch inside the LMM see section entitled Hardware 220 to 240Vac 50 60Hz will draw approx 18 mA this depends on options fitted 110 to 120Vac 50 60Hz will draw approx 36 mA this depends on options fitted 12V dc will draw approx mA this depends on options fitted 24V dc will draw approx mA this depends on options fitted Caution Users are advised that although the equipment has protection and conforms to CE approvals for trouble free operation the Multiflow system should be connected to a clean power supply ie free of noise and not in the same phase as heavy machinery Any machinery using heavy contacts in the immediate proximity of Multiflow should be suitably suppressed Inductive loads switched by the volt free relay contacts should be fitted with suitable snubber networks Page 4 LMM Designs User Manual Multiflow 2 FRONT PANEL TEST MODE By pressing the at the same time the front panel set up and test mode are entered The display will show the following options by pressing the Y ENABLEIR Y User ALTER to enable Y and disable N the IR keyboard KEY CLICK N User ALTER to select Y and disable N the audible keyclick TEST REMOTE Test the IR keyboard MAN 1234 Serial number of unit ALTER TO EXIT Press ALTER to exit this mode It should be noted that the exact order of each displa
3. buffer 8 bytes of decimal places returned ascii string cal dec a Left rx buff 8 3 b Label27 Caption b Sub cal dec dec result dp pos result str dec 0 eb LeftS result 2 If eb 00 Then GoTo the res is zero sethex RightS result 6 e Val amp h eb 127 bin data For p 1 To 6 Select Case UCase Mid sethex p 1 Case 0 nibble 0000 Case 1 nibble 0001 Case 2 nibble 0010 Case 3 nibble 0011 Case 4 nibble 0100 Case 5 nibble 0101 Case 6 nibble 0110 Case 7 nibble 0111 Case 8 nibble 1000 Case 9 nibble 1001 Case A nibble 1010 Case B nibble 1011 Case C nibble 1100 Case D nibble 1101 Case E nibble 1110 Case F nibble 1111 End Select bin data bin data nibble Next p If Left bin data 1 1 Then sign Else sign End If dec 1 For p 2 To Len bin data Bit Mid bin data p 1 If Bit 1 Then dec dec 2 p 1 Next 2 e dec wiv sign sign Str dec dec Val wiv sign the res is zero End Sub Select Case Val dp pos Case 1 result str Format dec 0 0 Case 2 result str Format dec 0 00 Case 3 result str Format dec 0 000 Case 4 result str Format dec 0 0000 Case 5 result str Format dec 0 00000 Case 6 result str Format dec 0 000000 Case 7 result str Format dec 0 00
4. display the first point of calibration Then use the w keys to select the required calibration point to be entered or altered The left hand display will always show the curve and point number i e C the right hand display will show the units i e C CTS S G etc This label can be changed by pressing the SHIFT then UNIT key 3 To enter alter data either press the CLEAR key or enter a numeric value The display will show SET on the left indicating that data is being entered To obtain values press the SHIFT key followed by the key To obtain EXP values enter the numeric value followed by the EXP key and the exponential value Press the CLEAR key to delete incorrect data entry 4 Having entered the correct value press the ENTER key and the entered data with the channel and point number will be displayed 5 Use the MY key to select the next point of calibration or press the ENTER key to exit this mode and return to the list of program options PT100 INPUT This allows the user to setup the PT100 input for calibration the user must connect a know resistance or RTD calibrator to the PT100 input 2 3 or 4 wire By setting the PT100 Factor to 1 0 the user should then exit the programming and observe the ohms which is now displaying the bits Now divide the actual resistance by the observed bits This is now the factor for the PT100 Factor The temperature calculation from the resistance is automatic and uses a 2 order polynomia
5. most peripherals i e Flow sensors Pressure Temperature Etc Each LMM is hand built to your own individual requirements by selection from the options listed below Special software is written for each unit as and when required Each function now has a stand alone card up to 5 cards can be added to your system Frequency Input Card Up to three frequency inputs can be accepted from flow sensors each input with a 32 point linearisation curve for the derivation of flow and a programmable factor for unit conversion Programmable cut off points enable displays of both frequency and flow to be inhibited below pre set values The update is programmable from 0 02 seconds up to virtual infinity Analogue Input Card 16 bit Resolution Up to six analogue process inputs 0 10V or 4 to 20mA are available for use with sensors of temperature flow density viscosity pressures absolute barometric gauge or differential and other factors requiring compensation Each input has a five point linearisation curve For conversion to alternative mass units a programmable mass factor can be used Analogue Output Card 16 bit Resolution Up to three analogue outputs 0 10V or 4 to 20mA proportional to any desired parameter are available for connection to remote facilities such as alarms indicators chart recorders PLCs and the like The analogue output reference parameter may be configured by the user Pulse Ouputs Three TTL open collecter outputs are availabl
6. 00000 Case 8 result str Format dec 0 00000000 Case 9 result str Format dec 0 000000000 Case Else result str Format dec 0 End Select Page 19 number PORT SETTINGS LMM Designs User Manual Multiflow 2 The display shows menu SETUP COMMS press ALTER to select the possible sub menus BAUD 19200 READ ONLY ID a RS485 FAST COMMS FAST PIN SETTINGS 9 way D Pin 2 Pin 3 Pin5 RS232 RX TX Ov Baud rate change using ALTER to 9600 1200 or 19200 At present the system is set to read only Use ALTER to scan Ids a to z lower case only Delay for bus transceiver FAST MEDIUM or SLOW Delay between Char output FAST MEDIUM or SLOW RS485 Ov Page 20 LMM Designs User Manual Multiflow 2 SPECIAL OPTIONS SETTING Real Time Clock Setting the real time clock When either the time or the date is viewed pressing ALTER will enable the user to set the time date When ALTER is pressed the cursor will flash at the Day you can enter the dd mm yyyy by pressing the numeric keypad Pressing the ENTER key will load the RTC with this information The same applies to the time MANIFOLD ON OFF The manifold system can be turned on and off this can only be done with the Infra Red Keyboard for safety reasons When the system is in MANIFOLD ON the operation of switching from each meter will be automatic based on the user entered values These trip points are in frequency for any Hz u meter When this dis
7. LMM Designs User Manual Multiflow 2 LMM Designs MULTI FLOW Serial No Areo001 Model Example LMM Designs User Manual Multiflow 2 Index PAGE INTRODUCTION TO THE MULTIFLOW PAGE 4 SPECIFICATIONS PAGE 5 FRONT PANEL TEST FUNCTIONS AND TEST PAGE 6 WORKING DISPLAYS PAGE7 PROGRAM THE IDENTS AND UNIT LABELS PAGES PROGRAMMING THE MULTIFLOW PAGE 9 CARDS FITTED PAGE 10 FREQUENCY INPUT CARD PAGE 11 TABLE CHANNEL 1 FREQUENCY DATA PAGE 12 TABLE CHANNEL 2 FREQUENCY DATA PAGE 13 TABLE CHANNEL 3 FREQUENCY DATA PAGE 14 PT100 INPUT CARD PAGE 15 CALCULATION OF OHMS TO TEMPERATURE PAGE 16 TABLE TEMPERATURE TO VISCOSITY PAGE 17 TABLE TEMPERATURE TO S G PAGE 18 RS232 RS485 COMMAND STRUCTURE PAGE 19 CODE EXAMPLE PAGE 20 PORT SETTINGS PAGE 21 SPECIAL OPTIONS PAGE 22 SETTING FOR OPTIONS PAGE 23 EQUATIONS AND DESCRIPTION PAGE 24 VISCOSITY FLOW DIAGRAM PAGE 25 TERMINAL DIAGRAM Page 2 LMM Designs User Manual Multiflow 2 Introduction to the Linear Multi Flow Meter LMM Mark 2 0 Designed to meet the ever changing requirements of flow metering the Multiflow can be tailored to virtually any flow application from the most basic of rate and total indicators to a batcher or full control system with computer and printer interface The system will operate with
8. OLD ON or in the non autoranging mode MANIFOLD OFF In the autoranging mode three valve control relays are used to select the correct turbine in accordance with the programmed frequency trip points This procedure is described in detail in the AUTORANGING section As the Multiflow changes the relay contacts it automatically displays the status of the turbine to which it has switched For example if while running on turbine 1 the flow is increased to switch to turbine 2 the ident display will change to rt or mas according which mode is operational at that time In autoranging mode the flow rate of all turbines I totalised on tot In non autoranging mode the flow rate is referred to the ident applicable to the turbine in operation Page 23 LMM Designs User Manual Multiflow 2 Hz u Kfactor System Diagram i Five point graph Milliamp Input Input Frequency Input Temperature j Temperature Function 30 point graph Hz Viscosity Hz u uncorrected Temperature T t versus Viscosity U Hz u corrected Hz u Roshkoe gt 79 7 7 Roshkoe 1 20 T c 30 point graph Hz u versus K factor uncorrected Strouhal 143o T pd K factor corrected K factor x Strouhal Strouhal number 1 3 a T Roshkoe number 1 20 T Where a Temperature
9. R A CODE 1 Enabling and Disabling the Infra red hand held keypad The infra red keypad will work with any LMM unit and therefore it may be necessary to disable this function on one unit where they are in close proximity To LOCK OUT the infrared keyboard you must enter the Front Panel Test Routine and select N for the ENABLE IR control Once locked out the infra red keypad is totally inactive on that particular unit and the lock LED will be lit in the lower square panel With the REMOTE OFF the displays may still be viewed by means of the front panel keys To restore operation of the infra red keyboard use the Front Panel Test Routine and select Y to the ENABLE IR menu 2 Automatic LOCK OUT In some cases the instrument itself will inhibit the ALTER key as it may be performing a sequence of events that can not be interrupted BATCHING Please see the special instructions if applicable UNABLE TO USE THE KEYS or KEY BOUNCE If you are experiencing key bounce or you are unable to use the keys then there is probably interference with the infra red remote control Problems may occur when trying to operate the unit in direct sunlight or using sodium lights etc If there are problems then please contact your supplier Page 8 LMM Designs User Manual Multiflow 2 CARDS FITTED This option is for information only pressing ALTER will display the first card slot 1 to 5 of the fitted cards As you use the 74 each slot is displayed as N
10. a use the following format Description ID View Hub Slot Reg Mem Slot Address No Bytes CR String a V H R 00A0 04 CR Hex 61 56 48 52 00A0 04 0D ASCII Hex 3631 35 36 3438 35 32 30304130 3034 0D Notes Reg Memory allows the user to view live data within the Processors own working registers or the Flash memory address space that is used to store constant and curve data The Hub is the main processor the card connected to the serial link whilst the SLOTs need to be addressed as follows Description ID View Hub Slot Reg Mem Slot Address No Bytes CR String a V S M 04 0600 04 CR Hex 61 56 49 4D 04 0600 04 0D ASCII Hex 3631 3536 34 39 34 44 30 34 30363030 3034 0D SLOTID Hex Ascii Hex Position 4 04 30 34 1A 5 05 30 35 1B 6 06 30 36 IC I 08 30 38 2A 8 09 30 39 2B 9 0A 30 41 2C 10 0C 30 43 3A 11 0D 30 44 3B 12 OE 30 45 3C 13 10 31 30 4A 14 11 31 31 4B 15 12 31 32 4C 16 14 31 34 5A 17 15 31 35 5B 18 16 31 36 5C General Address To obtain the list address for you instrument please send email to Immsystems mistral co uk to request a complete list also include are the conversion routines of the PicHex to standard PC Ascii data Page 18 LMM Designs User Manual Multiflow 2 Code Examples Cal dec returned decimal value asciihex string from input
11. alibration temperature of sensor used for Stro and Ros SORT CURVE Through out the system each curve can be sorted or left as entered Each curve works from lowest entry to highest entry if entered this way then the sort routine does not need to be used If you add a point that is not the highest then use the sort curve function If this function is not used it will allow the user to enter 57 or similar curves to be tracked RESET TOTALS This option allows the user to clear totals please note that there maybe more than one total i e Volume and Mass totals each needs to be cleared Use the ALTER key when on a RESET VOL 0 Y option to scan for the next total Page 10 LMM Designs User Manual Multiflow 2 BLANK TABLE INTO WHICH DATA MY BE WRITTEN FOR REF Curve 1 Input Hz O Hz u O Other Flow Rate Page 11 LMM Designs User Manual Multiflow 2 Curve 2 Input Hz O Hz u O Other Flow Rate Page 12 LMM Designs User Manual Multiflow 2 Curve 3 Input Hz O Hz u O Other Flow Rate Page 13 LMM Designs User Manual Multiflow 2 PT100 INPUT CARD EDIT CURVES This section describes how to program any of the potential curves in the system 1 Display shows Temperature Viscosity S G set Setup inputs or another option 2 Press ALTER to
12. co efficient of expansion Volume flow T Calibration temperature Actual temperature Hz K factor The above are programmable i Time base x1 Time base x 60 Time base x 3600 i Flow sec Flow min Flow hour Y Optional 30 point graph Volume Factor Volume flow x factor Temperature other engineering units versus Density y Density SG x Vol flow Mass Flow y Mass Factor Mass flow x factor other engineering units Page 24 LMM Designs User Manual Multiflow 2 TERMINALS TB FREQUENCY ANALOGUE IN RELAYS SLOT 1 SLOT 2 SLOT 3 1 SPECIAL IP PT100 supply NO RELAY 1 2 SPECIAL IP PT100 sense C RELAY1 3 EX VOLTAGE PT100 sense NO RELAY 2 4 SIGNAL 1 PT100 supply C RELAY2 5 SIGNAL 1 or 0v NO RELAY 3 6 0v C RELAY3 7 EX VOLTAGE 8 SIGNAL 2 9 SIGNAL 2 or 0v 10 0v 11 EX VOLTAGE 12 SIGNAL 3 13 SIGNAL 3 or 0v 14 0v B w un o a JN 8 T a Mcon1 123456 5 4 3 2 1 SLOT NUMBER Mcon1 1 24vDC input from 100mA to 200mA depends on cards fitted 2 0v 3 0v 4 24vDC output repeated from input 1 or when on Main supply 5 Optional relay C 6 Optional relay NO Mains input 80 to 265 ac auto Fus
13. e 1 0 amp HubCon Fused 5vDC Open Collector Output SWI input SW2 input SW3 input 0v UC ma Page 25
14. e for retransmission of rate or for output of pulses per unit volume of total These outputs too may be connected to remote indicators totalisers or PLCs Relay Card The Multi flow can accommodate up to seven volt free relays which can be deployed for alarm purposes If the process includes a batching unit or controller the relays can be used to control valves solenoids or pump starters Communications To monitor parameters or programme calibration data RS232 RS485 and interfaces can be incorporated For connection to panel or desk mounted printers either a serial or parallel port can be incorporated with the option of time and date indication The Main Display The standard display is alphanumeric with red dot matrix characters 152mm wide and 18mm high which give an exceptionally wide viewing angle The display itself comprises three fields on the left a maximum of five characters may be used to give the parameter identity in the centre is the read out of the quantity being measured and to the right are the characters defining the units of measurement These can be changed by the end user User test routines and buzzer Data Entry All calibration data are entered by means of a hand held infra red keypad following a successful pass code entry To prevent incorrect data entry when two Multiflow units are positioned in close proximity the reception of the unit that is not being addressed can be inhibited by a sequence of keystrokes on th
15. e front panel keyboard of that unit Page 3 LMM Designs User Manual Multiflow 2 SPECIFICATION Freq uency 32 point linearization curve of frequency versus flow rate by interpolation between points and by extrapolation from the first and last two points of the curve An engineering factor is included for the conversion of units Frequency range The default range is O 5hertz to 65kHz with accuracy 0 002Hz least significant digit A low cut off can be programmed by the end user which will allow the LMM to measure frequency down to 0 01 of a Hz The crystal oscilator can be programmed to offset and errors by calibration Signal conditioning On request the LMM can take signals from contact closure reed switch sine wave low level input to base of PNP transistor and two wire modulated current frequency inputs The default is a standard TTL type signal input or voltage pulse Sensor Excitation Voltage An adjustable 5 to 24V dc output 100mA each available only when used on the mains ac supply This can be set by the end user See section Titled HardWare Analog ue Inputs 5 point linearisation can be either 4 20mA or 0 10V dc Resolution 16 bit Accuracy 0 001 of full scale Analogue Outputs Either 4 20mA or 0 10V de Resolution 16 bit Accuracy 0 001 of full scale least significant digit Pulse Outputs TTL or Open Collector outputs with a range of 1 hertz to 1 kHz Relays
16. eter Relay 1 OFF Relay 2 OFF Channel 3 High flow meter Page 21 LMM Designs User Manual Multiflow 2 VOL ON MASS ON Pressing ALTER IR Keyboard will select the VOLume or MASS to be running The effect is 1 Each time the AUTO MANIFOLD changes the display will change to the new channel and display either the VOLume or the MASS flow rate of the target channel number 2 If fitted the analogue output will represent Volume or Mass flow rate RELAYS MANIFOLD Relay 1 ON Channel 1 Low flow meter Relay 2 ON Channel 2 Medium flow meter Relay 3 ON Channel 3 High flow meter TOTAL INHIBIT INPUT By shorting SW1 terminals 3 and 6 on the Hub Con the totalisation on all inputs will be inhibited from counting up Page 22 LMM Designs User Manual Multiflow 2 Special Instructions Brief description of unit calculations For each input there is a linearization curve which must be programmed for correct operation of the unit It should be noted that data entries for each curve may be in any order On completion of programming and reverting to the normal running display the unit will sort all data into numerical order This may result in data moved to a different point if they were not entered in numerical in the first instance The inputs and linearization graphs are processed as below A Pt100 input is provided for measuring the fluid temperature which is converted internally to a 4 20mA signal This is then processed u
17. g that data is being entered To obtain values press the SHIFT key followed by the key To obtain EXP values enter the numeric value followed by the EXP key and the exponential value Press the CLEAR key to delete incorrect data entry 4 Having entered the correct value press the ENTER key and the entered data with the channel and point number will be displayed 5 Use the MY key to select the next point of calibration or press the ENTER key to exit this mode and return to the list of program options FREQUENCY CHn SETUP To set up a frequency channel the following will apply however some items are optional and may not appear in your specific application Display shows CHn SETUP pressing alter and using the Ay will show options Use ALTER to change the values FRQ CUT OFF When below this value of Frequency then FRQ 0 0 VOL CUT OFF When below this value of volume flow then Vol Flow 0 0 MASS CUT OFF When below this value of mass flow then Mass Flow 0 0 TIME BASE Used to calculate flow rate in Kfactors or Total in flow 1 60 or 3600 UP DATE TIME 0 02 sec to 9999 secs for update control FRQ CONSTANT Default 2 07 used to adjust the internal crystal frequency VOL FACTOR Multiplier Volume flow rate by this factor MASS FACTOR Multiplier Mass flow rate by this factor DP n Decimal point positon O to 4 use the ALTER key to change ALPHA Alpha factor used for Stro and Ros calculation CAL TEMP C
18. l e Display shows INPUTS pressing alter and using the Ay will show options Use ALTER to change the values PT100 FACTOR Input bits X this factor Ohms Repeated up to 6 ANA per card SORT CURVE ANA VIS TEMP etc Through out the system each curve can be sorted or left as entered Each curve works from lowest entry to highest entry if entered this way then the sort routine does not need to be used If you add a point that is not the highest then use the sort curve function Page 14 LMM Designs User Manual Multiflow 2 CALCULATION OF OHMS TO TEMPERATURE The calculation from the measured resistance in ohms to the temperature is carried out by a standard polynomial equation a separate set of constants are used from 200 C to 0 C than from 0 C to 200 C Page 15 LMM Designs User Manual Multiflow 2 Temperature C O F Viscosity CTS Other Page 16 LMM Designs User Manual Multiflow 2 Temperature C O F S G Page 17 RS232 RS485 COMMAND STRUCTURE Viewing data from the Multiflow LMM Designs User Manual Multiflow 2 All data is send and received as ASCII HEX pairs the maths used in PIC Hex format 2 example routines are included to convert this data into PC or ASCII strings The PIC Hex format is always 4 bytes and represents a 32 bit floating point number system To read dat
19. play is showing pressing ALTER on the IR keyboard will toggle this selection ON or OFF When off a manual option is enabled see below As each meter is selected a relays will energise in a fail safe mode the valves should be open with no power and power to close them Low flow meter on Frequency Channel 1 relays 1 and 2 energises closing valves for mid and high flow Middle flow meter on Frequency Channel 2 relay 2 energised closing the valve for the high meter High flow meter on Frequency Channel 3 both relays off MANIFOLD AUTORANGING TRIP POINTS Under the menu system the display will show SETUP AUTO pressing alter will display the following by using the N 115 0 0 Hz This shows the trip point in Hertz from meter 1 Chan 1 low flow to 2 213 0 0 Hz This shows the trip point in Hertz from meter 2 Chan 2 medium flow to 3 3 2 0 0 Hz This shows the trip point in Hertz from meter 3 Chan 3 high flow to 2 21 0 0 Hz This shows the trip point in Hertz from meter 2 Chan 2 medium flow to 1 The user should take care to enter a reasonable switch points so as to avoid hunting between the channels CHANNEL 1 This display shows the current channel number running however if the MANIFOLD OFF option is running then pressing the ALTER key will change the channel number relay and analogue output will also change RELAYS MANIFOLD Relay 1 ON Relay 2 ON Channel 1 Low flow meter Relay 1 OFF Relay 2 ON Channel 2 Medium flow m
20. sing the five point mA versus temperature to obtain the temperature after which the 30 point temperature versus viscosity curve is used to obtian the viscosity The temperature measurement is also used to obtain the Strouhal and Roshkoe numbers as below which are in turn used to compensate the K factor STROUHAL NUMBER 1 3x Alpha Delta ROSHKOE NUMBER 1 2 Alpha Delta Where Alpha temperature coefficient Delta T Calibration Temperature Actual Temperature Three voltage pulse inputs are provided for connection to three turbine pre amplifiers The frequency of each turbine input is measured divided by the viscosity to obtain the uncorrected Hz Viscosity This value is then multiplied by the Roshkoe number to obtain the corrected Hz Viscosity and used to obtain an uncorrected turbine K factor using the 30 point frequency viscosity versus K factor curve The derived value is then multiplied by the Strouhal number to obtain the corrected K factor The measured frequency is then divided by the corrected K factor to obtain the flow rate in volume per second which may then be multiplied by the desired time base e g 60 for volume per minute Using the 30 point temperature versus S G curve the volume flow rate is converted to mass flow rate which is then totalised Totalisation may be stopped by the shorting together of terminals 34 and 36 at the rear terminal block The unit may operate in either the autoranging mode MANIF
21. ual Multiflow 2 PROGRAMMING THE LMM ENTERING THE PROGRAMMING MODE Press the SHIFT key on the infra red controller followed by the CODE Key CODE will be displayed A four digit code can now be entered On each press of a key the will change to in sequence from left to right When all four have been set the code is automatically checked If the display shows WRONG CODE then try again making sure that you are entering the correct code as each instrument has a different code setting If a mistake 1s made during setting then use the CLEAR key and try again If you are sure that the code is correct and the instrument still shows WRONG CODE then it is probable that the batteries need changing in the hand held remote control If you press the ALTER key by mistake the display will revert to normal after approx 20 seconds Pressing the gt keys will have the same effect Pressing any other key will reset the timer allowing sufficient time to enter each digit of code THE CODE NUMBER The code number for each instrument is taken from the last 4 digits of the serial number The serial number can be found on the front page of this manual on the rear of the instrument and is also displayed when the instrument is first powered up and finally by entering the Front panel Test routine For complete security it is recommended that the remote controller should be kept in a safe and secure place UNABLE TO ENTE
22. units only this will change all points in that curve 2 Press the SHIFT key followed by the EXP UNIT key and the cursor will begin to flash at the far right hand side of the display 3 Use the MW keys to select the required character for that position and the lt gt keys to alter the position of the cursor Using these key the units on the right hand side may be altered 4 To move the cursor to the left hand side of the display press the ALTER key and the cursor will move across 5 Use the MW keys to select the required character for that position and the lt gt keys to alter the position of the cursor Using these keys the display designation may be altered 6 Once the desired characters have been programmed then pressing the ENTER key will store them in that display 7 Use the MW keys to select another display to be altered and repeat the above stages IMPORTANT NOTE Where a maximum number of digits are to be displayed e g on total it is advised that the display designation is limited to four or fewer characters otherwise the displays will overlap causing apparent corruption If this should occur then the number of characters for the display designation should be reduced after which the display will return to normal In some cases the unit may prevent changes to the display This is because the instrument needs to have these displays fixed to run correctly See any special instructions supplied Page 7 LMM Designs User Man
23. y will vary in the way that the cards are plugged in Page 5 LMM Designs User Manual Multiflow 2 Working Displays when LMM is powered on When the unit is powered up the serial number is displayed for approximately 5 seconds then the first display line is shown Use the up key or the down y key to scroll through the resultant displays see table below The same keys on the hand held remote control will perform the same function STANDARD Display Description of resultant displays ident result units Volume flow rate channel 1 _ Viscosity of fluid The left direction key lt or the right 5 can be used to toggle between the STANDARD DISPLAYS see table above and the RAW DISPLAYS see table below A message is momentarily displayed indicating which section is selected Use the W direction keys to select a display RAW Display Description of resultant displays ident result units date dd mm yyyy Time Current state of the manifold system ON or OFF Current running channel from 1 to 3 Volume ON or Mass ON manifold ON channel volume ON SE n nnn Hz Frequency of turbine 1 Hz To Change idents and units see section titled DISPLAY IDENTS AND UNITS Page 6 LMM Designs User Manual Multiflow 2 PROGRAMMING THE IDENTS AND UNIT LABELS 1 When in all mode select the display to be altered using the W keys Note if you are a curve menu you change the
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