Universal Calculation Support, Zero Flow | Siemens 200 specs

Universal Calculation Support

When the primary measuring device (PMD) doesn’t fit one of the standard types, it can be programmed using a universal characterization. When Universal is selected as the PMD type (P600), then both P610 and P611 must be entered to define the flow.

Two curve types are supported:

•P600 = 4–linear (piece wise linear)

•P600 = 5–curved (cubic spline)

Both are shown in the following chart.

Typical Flow Characterization

	Maximums (P603, P604)
(P611)	Linear
	Linear
Flow	Curved
Flow
	Head (P610)

Characterization is achieved by entering the head (P610) and corresponding flow (P611), either from empirical measurement or from the manufacturer's specification. Increasing the number of defined breakpoints will increase the accuracy of the flow measurement.

Breakpoints should be concentrated in areas exhibiting the higher degrees of non linear flow. A maximum of 32 breakpoints can be defined. The curve’s end point is always specified by the parameters Maximum Head (P603) and Maximum Flow (P604) for a maximum total of 33 breakpoints.

Max. Flow
Max. Flow
Flow Breakpoints





Zero Flow
Zero Flow
ZeroHead								Max.Head
		Head Breakpoints

Use as many breakpoints as required by the complexity of your PMD.

See Volume on page 51 for more information and parameters P610 and P611 for characterization.

7ML19981FB06

MultiRanger 100/200 – INSTRUCTION MANUAL

Page 83

Open Channel Monitoring MR 200

Image 93

Siemens 200 Universal Calculation Support, Typical Flow Characterization, P611 Linear Flow Curved Head P610, Zero Flow

Contents

Multiranger This document is available in bound version Technical data subject to changeManual for agreement with Instrumentation described, variations Table of Contents Dolphin Plus Toolbar Buttons Iii Set Relays to First in First OUT Fifo Assist MRStarting Pumps by Rate of Level Change MR Open Channel Monitoring OCM 100 Communication Appendix a Single Parameter Access SPA Vii Viii Connecting a transducer with RG62 coaxial extension cableSet the MultiRanger to Ignore the Bad Echo Coaxial Transducer Extention Manual MultiRanger 100MultiRanger MultiRanger 100/200 Configuration Examples Manual Symbols Power SpecificationsSpecifications Mounting Temperature Compensation ResolutionTemperature Error Accuracy Outputs Inputs WeightEnclosure Approvals Maximum Cable Mounting InstallationMounting Locations Recommended Mounting Instructions Enclosure DimensionsWall Mount Mounting the Enclosure Cable exposed and entering through the cable glands Cable routed through a conduitUnscrew the glands and attach them loosely to the enclosure Tighten the glands to form a good seal Cutout Dimensions Panel MountCutout Instructions Panel Mount Dimensions Mounting the EnclosureHelpful hint MultiRanger Board Installing the BatteryOpen the enclosure lid Close and secure enclosure lid Installing SmartLinx Card Wiring WiringMultiRanger Cables Terminal BoardPlease do not overtighten the screws Connection Cable Type Transducers Power FailureRelays Relay Ratings MA Input MR 200 only Temperature SensorMA Output Sensor only. Leave Level System Synchronization Power Digital Communications RS-232 Serial ConnectionRS-485 Serial Connection Discrete Inputs RUN Mode RUN ModeOperating the MultiRanger Operation Icons indicating index type Item 1 edited in Program mode Readings in RUN ModeIcon Index Type Operation Key Values Status Parameters Controlling the Display Adjusting the primary reading for four-digit LCD readoutAuxiliary Reading Action Multiple Readings MR 200 only Setting the Default Auxiliary ReadingParameter Index Value Description Changing Number Scrolling Speed Starting Program Mode Program ModeHand Programmer To activate Program from RUN mode, press Program and then Operation Keys Programming Mode Programmer KeysDigit Totalizer toggle MR 200 only Compatible with product software versions 1.06 and earlier1 Dolphin Plus Button Action Dolphin Plus Toolbar Buttons Device Description Simatic Process Device Manager PDMCompatible with product software versions 1.07 and later1 See P900 for Software Revision Number 7ML19981FB06 Activating the MultiRanger Changing ParametersHelpful Hints Security Using Units or Percent %Parameters Types Maximum Default Values Parameter ResetMaster Reset P999 Display Readout Changing ParametersDolphin Plus Parameter Indexing Accessing a Parameter IndexMultiRanger Display Index Number Example Setting P1113 = Accessing a Secondary IndexPrimary and Secondary Indexes Primary Index Single Point Models Starting MeasurementExample MR 200 only Parameter Average or Differential MR 200 only Dual Point ModelsOperation Index Description Index Value Description Measurement Conditions Dimensions MR 200 onlyResponse Rate Failsafe Relays AlarmGeneral Introduction Relay Function Miscellaneous Pump Relay Related Parameters Relay StatesRelay Status Non Run Modes Relay Types Relay Activation Relay Wiring Test Relay Logic is Modified Relay FailsafeHOLd Keeps the relay in the current state Energizes the relay Value Parameters Affected Preset Applications Backup Level Override Backup Level Override ParametersBackup Level Override Wiring the Discrete Inputs Discrete InputsProgramming the Discrete Input Logic MA Input MR MA I/OLevel Reading Parameters MA I/O Calibrating 4 mA Output MA LI/OCalibrating 20 mA Output Verifying the mA Range Tank Shape and Dimensions Volume MRVolume Readings Example Chart Characterization Chart MRP051 Level P054 Determines the volumes which Which the volumes are knownMultiRanger 200 only All level readings Alarms AlarmsLevel Set the Common Parameters Alarm Designation Setting Simple Level AlarmsSetting a Filling Rate Alarm Rate MR Temperature MR Cable FaultBounds/ Out of Bounds Range MR Parameter Index Value Loss of Echo LOE This shows a high alarm Setting a group of three pumps to pump down a wet well Setting a Pump Down GroupPump Control Example Sewage Wet Well Setting a Pump Up Reservoir Group Set Relays to Alternate Duty AssistSet the on Setpoints Set the Relay OFF Setpoints 3m By using index 0 all six relays are set atSample values 4m Sets the three setpoints for the pump relays Set Relays to Fixed Duty Assist Other Pump Control AlgorithmsSet the Relay on Setpoints MR Set the Relay OFF Setpoints MR Set Relays to Alternate Duty Service MR Set Relays to Fixed Duty Backup MRFixed Duty BACKUP. Only one pump will Ever run at one time Starting Pumps by Rate of Level Change MR Optional Pump ControlsPump Control Parameter P112 P113 P121 P132 Rotating Pumps by Service Ratio MR Single and Dual Point MRTime Totalizing Pumped Volume MR Setting Independent Failsafe ControlsSet in RUN Mode Setting a Pump to Run On MR Setting the Pump Start Delays MRReducing Wall Cling MR Grouping Pumps MR Setting a Flush Valve MRGroups Pumps One and Two Groups Pumps Three and Four Information Available Parameter Access Tracking Pump UsageRelay Controlled by Communications Setting a Rake Control Rake Screen Control MRPoint Three Level Distance = h1 -h2 Set Relays 2 to 4 Level Alarms Setting the Common ParametersSet Relay 1 Operate Rake Screen Control Relay Contacts External Totalizers and Flow Samplers MRTotalizer Counter Formula Flow Sampler Based on Volume and TimeSource of units depends on the operation Operation Units Source Parameter Open Channel Monitoring OCM MR Dimensional P600 = 2,3,6,7Common Parameters Exponential P600 = Channel Monitoring Setting Zero HeadExamples on the following pages show both methods P603 P006 P007 P605 Setting Totalized Volume Applications Supported by MultiRangerBS-3680 / ISO 1438/1 Thin plate V notch weir Plan View 4 to 5 x hmax hmax = P007 BS-3680 / ISO 4359 Rectangular FlumeP600 P602 P605 P608 Application Information Palmer Bowlus Flume Flume Size Diameter in feet Point of Measurement Cminches FlumeFlume Flume height D Standard Weirs Applicable Weir ProfilesP600 Exponential Function P601 Weir Profile Parshall Flume Non-Applicable Weir ProfilesSized by throat width Set on solid foundation Transducer P006 Maximum Head preset P007 Leopold Lagco FlumeLeopold Lagco Flume Cut Throat Flume Cut Throat Flume Typical Flow Characterization Universal Calculation SupportP611 Linear Flow Curved Head P610 Zero Flow Example Weirs Example FlumesTrapezoidal Dual Range nested Parshall These weirs could require universal calculation Testing the Configuration Testing the ConfigurationSimulation Simulating a Single Measurement Checking OCM Flow Characterization MR Checking Volume Characterization MRPress No effect Application Test Checkout Testing the Configuration MultiRanger Communication Systems MultiRanger CommunicationsOptional SmartLinxCards Communications Communication Ports Communication SystemsModbus Port Connection Location Interface P770 Modbus RTU slave P771 SmartLinxP770 Dolphin P772 Data rate of 115.2 Kilo baud Wiring Guidelines Communications InstallationComms Installation Ports 1 Port 1 RS-232 RJ-11 Jack To connect the unit to a modem using an RS-232 jackPort 2 RS-485 Computer DB-9 male RJ-11 to DB 9 converter To connect the unit to a modem using an RS-485 port Configuring Communication Ports ParametersP770 Port Protocol P771 Network Address P773 Parity P772 Baud RateP774 Data Bits P775 Stop Bits P778 Modem Available P779 Modem Inactivity TimeoutP782 Parameter Index Location Hanging Up Register Map for Most Common Data Modbus Register MapType Description Start Data Type Read Modbus Register Types Word Order R40,062 Map ID R40,063Modbus Register Types Description Start Point Data R41,010 R41,031 Product ID R40,064Totalizer R41,040 R41,043 Input/Output R41,070 R41,143 Relay Outputs R41,080 Discrete Inputs R41,070MA Input R41,090 MR MA Output R41,110-41,111 Pump OFF Setpoint R41,430 R41,435 Pumped Volume R41,440 R41,443 MRPump Hours R41,450 R41,461 Pump Starts R41,470 R41,475 Indexing the Parameter Access Area Parameter Access R43,998 R46,999Format Register # Parameter # Usually, the parameters are all read / write Global Index Method P782 = Reading ParametersParameter Specific Index Method P782 = Examples are Writing Parameters Global Index Method P782 = Format Words R46,000 to R46,999Parameter-Specific Index Method P782 = Format Registers Decimal Offset Example FormatDecimal Numeric Values Data TypesBit Values Unsigned Double Precision Integer UINT32 Split Values Yy = value % 256 128 where % is the modulus operatorOne example is P807, Transducer Noise, where Two registers are read as a 32-bit integer Number Text Message as displayed on LCD Text Messages Relay Function Codes P111 Only MultiRangerControl Relay Function Code Number P111 Error Handling Error HandlingError Handling Modbus Responses Error Handling Communication Troubleshooting GenerallySpecifically Reading Parameters MappingCommunication Appendix a Address Description Writing Parameters Format RegisterBits Values Description Currently the MultiRanger has two error codes available Error Codes MultiRanger 100 and MultiRanger Parameter ReferenceHelpful Hints Parameters # of indexes Index typesTransducer2 Up to 7 2 P000 Lock Quick Start P001 to P007P001 Operation Single Point Model Dual Point Model For DPD and DPA Programming MR P002 MaterialSingle Point Model Use Dual Point Model Use P003 Maximum Process Speed P004 TransducerDetermines level change reaction Specifies measurement units used for dimensional values P005 UnitsP006 Empty Volume P050 to P055 MR P007 SpanSets the range levels to be measured Preset Flat Level Bottom Volume calculation not requiredP050 Tank Shape MR Parabola Bottom Examples P051 Maximum Volume MR P053 Tank Dimension L MR P052 Tank Dimension a MRP054 Level Breakpoints Universal Volume Calculation MR Entering a Level Breakpoint Entering a Volume Breakpoint Typical volume calculationsDisplay and Reading P060 to P062 P060 Decimal Position P062 Offset Reading P061 Convert Reading MRP607 Flowrate Decimal Range -999 to Backup Level Override P064 Reading Override EnableP065 Reading Override Value P069 Password P066 Override Time Delay Material level reported when a Failsafe State is initiated P070 Failsafe TimerFailsafe P070 to P072 P071 Failsafe Material Level P072 Failsafe Level Advance Relays P100 to P119 Six preset applications to configure or bench test the unit P100 Preset Applications MRControl Functions P111 Setpoints P112, P113 Dual Point Mode optional Single Point Mode standardP110 Level Source P111 Relay Control Function Values For P111 Control Type Relay Control P112 Relay on Setpoint P113 Relay OFF Setpoint Distance above and below the bound alarm setpointsP115 Relay Interval Setpoint MR P116 Dead Band MR Power Failure Value Logic AlarmP118 Relay Output Logic Relay States P119 Relay Logic Test P118 is preset to 2 which is positive logicP121 Pump by Rate MR Positive Logic Independent Relay Failsafe P129 P122 Pump Service Ratio MRP129 Relay Failsafe This parameter only relates to relays with P111 = 54 or Advanced Pump Control Modifiers P130 to P137 MR Relay Function P111 Preset P129P130 Pump Run-On Interval MR To select an independent Relay Failsafe value P133 Pump Power Resumption Delay MR P132 Pump Start Delay MRSets the minimum delay in seconds between pump starts P131 Pump Run-On Duration MR P137 Pump Group MR P136 Wall Cling Reduction MR Dual Point Mode Single Point ModeFlush Systems P170 to P173 MR P170 Flush Pump MR P172 Flush Interval MR P171 Flush Cycles MRP173 Flush Duration MR Sets the number of pump cycles requiring flush control P200 mA Output Range MA Output P200 to P219P201 mA Output Function Determines the mA output range P202 mA Output Allocation Displays current mA output value for the Point Number P203 mA Output Value / Transducer Independent mA Setpoints P210 and P211 P201-mA Function Action SettingsMA Output Limits P212 and P213 P210 0/4 mA Output Setpoint P212 mA Output Min Limit MA Output Trim P214 to P215P213 mA Output Max Limit P214 4 mA Output Trim MA Input P250 to P260 MR MA Output Failsafe P219 MRP215 20 mA Output Trim P219 mA Output Failsafe MR P251 0 or 4 mA Input Level MR P250 mA Input Range MRP252 20 mA Input Level MR Shows the mA input range of the connected mA device P253 Input Filter Time Constant MR Discrete Input Functions P270 to P275P254 Scaled mA Input Value MR P260 mA Raw Input MR Standard Data Logging P300 to P321 Record Temperatures P300 to P303P270 Discrete Input Function P275 Scaled Discrete Input Value P300 Temperature, Transducer Maximum P301 Temperature, Transducer MinimumP302 Temperature, Sensor Maximum Record Readings P304 and P305 P303 Temperature, Sensor MinimumPump Records P309 to P312 P304 Reading Max P310 Pump Hours P309 Pump RUN TimeP311 Pump Starts P312 Pump Run Ons MR LCD Totalizer P322 and P323 MR Flow Records P320 and P321 MRP320 Flow Max MR P321 Flow Min MR Profile Records P330 to P337 P322 LCD Total Low MRP323 LCD Total High MR Code Description P330 Profile Record Use to enable/disable the Auto Profile Record function P331 Auto Record EnableP332 Auto Record Transducer P333 Auto Record Interval Auto Record on and OFF Setpoints P334 to P337 P334 Auto Record on SetpointP335 Auto Record OFF Setpoint P337 Auto Record LOE Time P336 Auto Record Filling / Emptying P340 Date of Manufacture Installation Records P340 to P342P341 RUN Time P342 Start Ups P600 Primary Measuring Device MR Open Channel Monitoring P600 to P621 MRSingle Point Model Dual Type of primary measuring device PMD used P601 Flow Exponent MR Word on ExponentsExponent for the flow calculation formula Dimensions of the Primary Measuring Device PMD Example ExponentsPMD Type Exponent sample only P604 Maximum Flow MR P603 Maximum Head MRLevel value associated with Maximum Flow, in Units P005 Maximum flowrate associated with Maximum Head P603 Conditions Enter P605 Zero Head MR P606 Time Units MR P607 Flowrate Decimal MRMaximum number of decimal places to be displayed P608 Flowrate Units MR Volume units used to display total flowCubic metres / hour Cubic metres / day Cubic feet / second Million gallons / day Imperial P611 Breakpoint Flowrates MR P610 Head Breakpoints MRHead vs. Flowrate P610 and P611 Flowrate corresponding to each Head Breakpoint entered P620 Low Flow Cutoff MR Procedure, with head steadyP621 Auto Zero Head MR Calibrates Zero Head P605 based on actual head measurements Pumped Volume Totalizer P622 MR P622 Inflow / Discharge Adjust MROr discharge Totalizer features apply to MultiRanger 200 only Totalizer P630 to P645 MRP630 LCD Totalized Multiplier MR P640 Remote Totalized Multiplier MR P633 LCD Totalized Decimal Position MREnter the maximum number of decimal places to be displayed 100 1000 P641 Flow Sampler Mantissa MR P642 Flow Sampler Exponent MREnter the mantissa Y for the exponent Z in the formula Range Calibration P650 to P654 Offset Adjusts the measurements by a fixed amountP645 Relay Duration MR Enter the exponent Z for the mantissa Y in the formula P650 Offset Calibration Condition for use of this featureP651 Sound Velocity Calibration Offset Calibration Value altered when an Offset Calibration is performed Using Sound Velocity CalibrationP652 Offset Correction P653 Velocity Temperature Compensation P660 to P664 P654 Velocity at 20CP660 Temp Source Range -199 to 199 preset = 20 C P663 Temperature Transducer AllocationP661 Temp Fixed P660 Temp Source View the transducer temperature in C P664 TemperatureRate P700 to P708 P700 Max Fill Rate Fill rate required to activate the LCD Filling indicator P702 Filling IndicatorP701 Max Empty Rate P003 Value Meters / Minute Empty rate required to activate the LCD Emptying indicator P703 Emptying IndicatorP704 Rate Filter Damps Rate Value P707 fluctuations P706 Rate Update Distance P705 Rate Update TimeP707 Rate Value P005 Units P007 Span Press Reading to toggle between percent and volume P708 Volume Rate Display MRMeasurement Verification P710 to P713 P710 Fuzz Filter P711 Echo Lock Global Transducer OffP713 Echo Lock Window P820 Algorithm Adjusts the size of the Echo Lock Window P711 value P712 preset valueP712 Echo Lock Sampling P713 Echo Lock Window Enables the System Sync on the terminal block P727 Scan DelayTransducer Scanning P726 to P729 P726 Level System Sync Display P730 to P739 P728 Shot DelayP729 Scan Time P730 Auxiliary Reading P733 Scroll Access P732 Display DelayAdjusts the Point Number display scroll speed P731 Auxiliary Reading Key P735 Backlight P741 Communications TimeoutP737 Primary Reading MR Controls the LCD backlighting Communications P770 to P782 SmartLinx Reserved P750 to P769P770 Port Protocol P771 Network Address P772 Baud Rate P773 ParityP774 Data Bits P779 Modem Inactivity Timeout P775 Stop BitsP778 Modem Available P790 Hardware Error SmartLinx Hardware Testing P790 to P795P782 Parameter Index Location Global P791 Hardware Error Code P792 Hardware Error CountP794 SmartLinx Module Type P795 SmartLinx Protocol P799 Communications Control Echo Processing P800 to P807P800 Near Blanking Space near the transducer face which cannot be measured P802 Transducer with Submergence Shield P801 Range Extension P804 Confidence Threshold P803 Shot / Pulse ModeDetermines what type of ultrasonic shots are fired Determines which echoes are evaluated by software P806 Echo Strength P805 Echo ConfidenceP807 Noise Display Description P815 Echo Time Filtered Advanced Echo Processing P815 to P825P816 Echo Time Raw Time in ms from the transmit pulse to the processed echo P820 Algorithm P822 Narrow Echo Filter P821 Spike FilterDampens spikes in the echo profile to reduce false readings Filters out echoes of a specific width P823 Reform Echo P825 Echo Marker TriggerSmoothes jagged peaks in the echo profile P830 TVT Type Advanced TVT Adjustment P830 to P835P831 TVT Shaper Selects the TVT Curve used P833 TVT Start Min P832 TVT Shaper Adjust P834 TVT Start Duration P835 TVT Slope MinP833 TVT Start Min P835 TVT Slope Min Display before Auto False Echo Suppression Or when P837 = P837 Auto False-Echo SuppressionValues P838 Auto False-Echo Suppression Distance Set UpP839 TVT Hover Level Display after Auto False Echo Suppression Advanced Shot Adjustment P840 to P852 P840 Short Shot NumberP841 Long Shot Number P842 Short Shot Frequency P843 Long Shot FrequencyP844 Short Shot Width Range 30 to Preset P840 Short Shot Number Adjust the width in ms of the long shot transmit pulseP845 Long Shot Width P850 Short Shot Bias P852 Short Shot Range Test P900 to P913P900 Software Revision Number P901 Memory P903 Display P902 WatchdogP904 Keypad P905 Transmit Pulse P908 Scanner P912 Transducer TemperatureP910 Toggle Relays P911 mA Output Value To Access in RUN Mode P913 Sensor TemperatureMeasurement P920 to P927 P914 mA Input MR P922 Space Measurement P921 Material MeasurementP923 Distance Measurement P001 P050 = P050 ≠ P925 Flow Measurement MR P924 Volume Measurement MRP926 Head Measurement MR Calculated flowrate in Max Flow P604 units or % of Max Flow This feature resets all parameters to original values Master Reset P999P927 Distance Measurement Pressing the Clear keys 7ML19981FB06 Parameters Appendix a Index Types Global View only BreakpointParameter depen Dent up to 7 2 Or 3 Echo Processing Transmit PulseDolphin Plus Display Cursor Auto False-Echo Suppression TVT Time Varying Threshold curves Sound Velocity Distance Calculation Scanning Volume Calculation MRMultiRanger 100/200 Universal, Linear P050 = Flow Calculation Universal, Curved MRSet P050 = See also Typical Flow Characterization on Universal, Linear MR Parameter Units Maximum Process SpeedValues Dependent on Maximum Process Fast Appendix C Troubleshooting Common Problems ChartSymptom Cause Action Determine the Noise Source Noise ProblemsRemoved + removed Go to Acoustical Noise Non-Transducer Noise Sources Common Wiring ProblemsReducing Electrical Noise Reducing Acoustical Noise Adjust Transducer Aiming Measurement DifficultiesFlashing LOE Display Fixed Reading Obstructions in the Sound BeamNozzle Mountings Wrong Reading Adjust the Echo AlgorithmSet the MultiRanger to Ignore the Bad Echo Types of Wrong Readings Normal Ring Down Transducer RingingPoor Ring Down Ring Down TVT curve Unit Repair and Excluded Liability Pump Control Algorithms Pump Control OptionsPump Groups Pump by Rate MR Fixed Duty Assist P111 = Fixed Duty Backup P111 = 51 MR Alternate Duty Assist P111 = Alternate Duty Backup P111 = 53 MRIndex Relays Cycle Relays Relay Operation for P118 = 2 MR Service Ratio Duty Assist P111 = 54 MR Other Pump Controls MR Service Ratio Duty Backup P111 = 55 MRFirst In First Out Fifo P111 = 56 MR Pump by Rate P121 MR Flush Device P170 to P173 Updating Software Appendix E Updating Software Appendix F Upgrading Connecting the TransducerMounting a MultiRanger 100/200 Coaxial Transducer Extention Existing installation Connecting a transducer with RG62 coaxial extension cable MultiRanger Plus AlarmRelay Parameter Value On setpoint Appendix G Conduit Entry for Class 1, Div 2 Applications Appendix G7ML19981FBO6 23650314 MultiRanger SoftChanges Soft Ware Date Changes Rev Property no Reset Systems testingSimatic PDM related TVT display Improvement to prevent it from going Improved Preset Application values Eliminated rogue watchdog resets whenUsing Dolphin+ Changed P132 to global From Modbus map reg OCM Time Units improvementNow being protected from other units’ Transmit pulse DDs required 7ML19981FB06 Improved volume calculation for 3rd point Property noResetVolume Reading some floats as decimal shifted Programming Charts Parameter ChartsP000 Lock G P113 Relay OFF Setpoint P115 P121 Pump by Rate MR P122 Pump Service Ratio MRP116 Deadband P118 Relay Output Logic P119 Relay Logic Test P210 0/4 mA Output Setpoint P211 20 mA Output Setpoint P304 Reading Max P305 Reading Min P219 mA Output FailsafeMRP320 Flow Max MR P321 Flow Min MR P322 LCD Total Low MR P323 LCD Total High MR Open Channel Monitoring P340 Date of Manufacture P341 RUN Time P342 Start Ups Temperature Compensation SmartLinx Reserved Communications P737 Primary Reading MR P741 Communications Timeout Reserved Parameter Index 105 Parameter access153 103 212 203207 162 Testing Service ratio110 242 Weir Characterization chart167 233Page Page 7ml19981FB06