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Siemens interranger DPS300 Instructional Manual Download Page 83

 

7ML19981BC01 

83

 InterRanger 

DPS300

 

Advanced Echo Processing (P810 to P853) 

Note: 

The following Echo Processing parameters are intended for use by authorized 
Siemens Service personnel or Industrial Instrumentation Technicians familiar with 
Siemens ultrasonic echo processing techniques.  

Anatomy of an Echo Profile 

The relevant parts of an echo profile are listed here. These are visible in either 
Dolphin Plus or an oscilloscope.  

 

P810  Scope Displays  

Use this feature to monitor the results of Echo Processing parameter alterations.  

Connect an oscilloscope to Display Board TP4, TP5, and TP6 (GND, SCOPE and 
SYNC).  

Observe any combination of the following Scope Displays:  

DISPLAY 

    DISPLAY 

SYMBOL 

 

 

 

 

 

 

 

 P      C     n      u  

Echo Profile  

TVT Curve  

Echo Marker  

Echo Lock Window  

echo profile 

TVT curve 

selected echo 

echo lock window 

echo marker

Summary of Contents for interranger DPS300

Page 1: ...Instructional Manual March 2008 DPS300 interranger ...

Page 2: ...ronics Process Instruments Inc Siemens Milltronics Process Instruments Inc will not be responsible for the contents of partial or whole reproductions of either bound or electronic versions While we have verified the contents of this manual for agreement with the instrumentation described variations remain possible Thus we cannot guarantee full agreement The contents of this manual are regularly re...

Page 3: ...atures 14 As a System 15 Application Planning 16 Circular Clarifiers 16 Rectangular Clarifiers 18 Application Example 22 Installation 24 Location 24 Optional Mounting Assembly 25 Optional Skimmer Guard 29 Transducer Mounting 33 Assembly 35 Communication 39 Level System Synchronization 40 Power 40 Programming 42 Display 42 Keypad Program Mode 43 Programming Security 45 Quick Start Parameters 46 Ope...

Page 4: ...Compensation Parameters P660 to P664 74 Rate Parameters P700 to P707 75 Measurement Verification Parameters P710 to P713 77 Display Parameters P730 to P733 P740 78 Peripheral Communication Support Parameters P740 to P772 79 SmartLinx Parameters P790 to P792 81 Echo Processing Parameters P800 to P807 81 Advanced Echo Processing P810 to P853 83 Test Parameters P900 to P913 90 Measurement Parameters ...

Page 5: ...ttery required Programming via removable programmer and or Dolphin Plus interface package Display custom graphics backlit LCD with 51 x 127 mm 5 x 2 viewing area Temperature 50 to 150 C 58 to 302 F Compensation integral transducer sensor 2 TS 3 temperature sensors max programmable fixed temperature Temperature Error with compensation 0 1 of range fixed temperature 0 22 C deviation from programmed ...

Page 6: ...rmance available upon request Programmer Power may be supplied with either 3 V Lithium non replaceable or 9 V ANSI NEDA 1604 PP3 or equivalent Ambient Temperature 20 to 50 C 5 to 122 F Keypad 20 keys with tactile feedback Interface non invasive digital infra red Enclosure general purpose 67 mm W x 100 mm H x 25 mm D 2 6 W x 4 H x 1 D ABS plastic Weight 150 g 0 3 lb Transducer Model Echomax XCT 12 ...

Page 7: ...nterface and infrared ComVerter link Refer to associated product documentation Cable to suit transducer temperature sensor instrumentation and communication Skimmer Guard Model Type A for 20cm 8 skimmers Type B for 40cm 16 skimmers Temperature 40 to 80 C 40 C to 176 F Construction stainless steel hinged conduit with guard and neoprene hinge boot Connection transducer 1 NPT or BSP coupling conduit ...

Page 8: ...1 500 m 5 000 ft Synchronisation Belden 8760 shielded twisted pair 18 AWG 0 75mm2 or equivalent RJ 11 Port No shielded cable necessary Maximum length 3m Bipolar Current Loop Belden 8760 shielded twisted pair 18 AWG 0 75mm2 or equivalent Maximum separation 1 500 m 5 000 ft RS 232 Link Belden 8770 shielded twisted pair 18 AWG 0 75mm2 or equivalent Maximum separation 15 m 50 ft RS 485 Link Belden 877...

Page 9: ... mode entry procedure and performance evaluation recommendations Application Parameters details the programmable features which may be used to alter Run mode display failsafe relay and mA output operation Enhancement Parameters defines the programmable features used to enhance RUN mode operation Typically used as directed by the Troubleshooting Guide Technical Reference provides detailed informati...

Page 10: ...s the time from pulse emission to reception of the echo from the sludge interface The time measured is used to calculate the distance from the transducer face to the sludge blanket The distance calculation is dependent upon the sound velocity through the wastewater in the clarifier which is in turn dependent upon the temperature of the wastewater The transducer having an integral temperature senso...

Page 11: ... process control equipment As well the DPS300 may be connected to a Milltronics BIC II Buffered Interface Converter to provide RS 232 and or RS 422 communications for host computers Distributed Control Systems and special capable of operating as a host device Programmable Logic Controllers Programming can be done locally using the portable programmer keypad or remotely through optional Dolphin sof...

Page 12: ...InterRanger DPS300 12 7ML19981BC01 DPS300 Communication Overview or 0 4 20mA PLC or DCS SmartLinx RS 232 or 485 local Bipolar current loop remote RS 232 or 422 or Plant wide control system network ...

Page 13: ...uipped with an appropriate Siemens SmartLinx module Milltronics Peripherals The communication port provides connection for RS 232 RS 485 or Milltronics bipolar current loop The current loop provides remote communication via Milltronics BIC II to the peripheral device The BIC II converts the current loop to RS 232 or RS 422 signal Dolphin Compatible Communications Dolphin Plus is Windows95 compatib...

Page 14: ...may be accessed directly Scroll Access Single button scroll forward single button scroll back to key features Operation Select level space or distance Material Select clarifier type automatically adjusts echo processing for the type of clarifier Units Display Readings in m cm mm ft in or any other units desired Additional Features Use as Desired Failsafe Numerous failsafe options for process contr...

Page 15: ...transducer with Skimmer Guard if provided to the Mounting Assembly Otherwise mount the transducer assembly in a secure fashion Refer to the Mounting Assembly section for dimensions and assembly details Install the DPS300 and program the unit for your specific application Refer to the Application and Parameters sections of this manual DPS300 Siemens Mounting Assembly Mounts the transducer to handra...

Page 16: ...lk Bridge or Walkway Most circular tanks have a catwalk that extends into the centre of the tank usually with 2 51 mm or similar tubular railings These railings are the recommended mounting location for the InterRanger The Siemens Mounting Assembly is available to locate the transducer in this location Inlet This is where the wastewater flows into the tank Do not mount the transducer close to the ...

Page 17: ...path of the skimmer often the case then the optional Skimmer Guard must be used Circular Clarifier Scrapers Scrapers keep the oldest sludge on the bottom of the tank from hardening and help to move the sludge into a hopper for pumping In circular tanks the skimmer and scraper are often connected to the same rotating mechanism radiating from the centre of the tank Common configurations could includ...

Page 18: ... scum trough It is important to observe the bridge motion through at least one complete cycle to ensure that the transducer and or the mounting assembly will not collide with any structures in the tank Rectangular Clarifiers There are several different types of rectangular clarifiers but all operate in the same basic way and share common design features that will need to be considered when install...

Page 19: ... may not be visible Surface Skimmers Skimmers are used to remove the scum from the surface of the water in the clarifier They are usually short fences called flights that are pulled along the top of the water with a chain mechanism in rectangular tanks The scum is skimmed away from the effluent weirs into a trough where it can be removed easily It is important to observe the skimmer action when se...

Page 20: ... maintain sludge levels Do not locate the transducer near these outlets as the sludge is more disturbed there Ensure the transducer will not come into contact with effluent weirs or scum troughs at either end of the bridge travel It is important to observe the bridge motion through at least one complete cycle to ensure that the transducer and or the mounting assembly will not collide with any stru...

Page 21: ...As mentioned mounting of the transducer must take into account several considerations vertical adjustment of the transducer so that it is immersed in the clarifier water 3 to 6 cm Siemens Mounting Assembly provides this horizontal adjustment of the transducer so that it can be extended away from the clarifier wall or handrail Siemens Mounting Assembly provides this articulation of the transducer c...

Page 22: ...er Guard one Siemens Mounting Assembly The DPS300 is a dual point monitor capable of measuring two clarifiers when the unit is equipped with two transducers This example shows the unit used for single point monitoring but two could be used Note When powered up the DPS300 will take up to several minutes to lock onto its first measurement During this time several errors may be reported These errors ...

Page 23: ... the face of the transducer to the bottom of the clarifier directly beneath P110 relay 1 1 relay 1 is assigned to point 1 P111 relay 1 50 relay 1 is assigned for pump control P112 relay A setpoint 0 3 sludge level at which the pump turns on P113 relay B setpoint 0 1 sludge level at which the pump turns off P112 0 3 m pump on P112 0 1 m pump off P006 4 9 m ...

Page 24: ...earance to swing open the front cover and perform the required wiring connections provides access for viewing is vibration free Avoid a location that is exposed to continuous direct sunlight Otherwise provide a sun shield close to high voltage or current runs contactors or SCR control drives Cable Conduit Entry Requirements Determine the number of conduit entries required transducer s one or two t...

Page 25: ...al location may be compromised due to structural considerations of the clarifier and practicality of installation Refer to Application Planning on page 16 for more information Optional Mounting Assembly The mounting assembly provides an easy means of extending the transducer out into the clarifier wastewater by hanging off of nearby handrails 826 mm 32 5 305 w x 292 h mm 12 w x 11 5 h 432 to 610 m...

Page 26: ...ing the Mounting Assembly Refer to the DPS300 system manual to determine the appropriate location for installing the Mounting Assembly Components extension arms 2 mounting plate 1 for DPS300 electronics 7 64 hex key base plate 1 rail bracket 2 u bolts with nuts washers 4 large 2 small hitch pin 2 5 16 18 x 1 bolt 2 washers flat 1 lock nut in hardware bag 6 32 threaded hex bolts in hardware bag 6 3...

Page 27: ... mating the arm and plate hinges and inserting the hinge pins Secure each hinge pin by inserting a hitch pin through the hole at the end of the pin Optional If it is required to mount the DPS300 at the clarifier then attach the mounting panel to the base plate Use the hex bolts provided to mount the DPS300 to the mounting panel The DPS300 is pre drilled with the appropriate holes 1 1 2 2 3 4 ...

Page 28: ...d lower rails 2 The upper rail bracket is fixed Check that the bolts are securely fastened 3 Slide the lower rail bracket in position so that it rests on the lower rail Tighten the slip bolts to secure the bracket 4 Insert the four larger u bolts through the upper and lower brackets clamping the brackets to the rails and fasten with the supplied washers and nuts 2 slip bolts 3 4 4 1 1 ...

Page 29: ...ts the skimmer guard and pushes it up and over the skimmer effectively clearing the transducer out of harm s way Once the skimmer has passed the guard is free to fall re immersing the transducer into the clarifier water The skimmer guard is available in two sizes Type A for skimmers 20 cm 8 or less in cross sectional height Type B for skimmers 40 cm 16 or greater in cross sectional height conduit ...

Page 30: ...g coupling 10 Screw the transducer into the mounting coupling and tighten 11 Run the transducer cable from the hinge out the conduit coupling 12 Pull cable taught insuring that the cable will not get pinched in the hinge 13 Run the transducer cable through the boot and customer conduit 14 Slide the boot over the end of the customer conduit and screw the conduit into the coupling 15 Slide the boot ...

Page 31: ...at the guard swings precisely in line with the skimmer s travel Improper alignment will cause needless wear on the joint and stress on the Skimmer Guard and could result in damage to the conduit guard and the transducer Rectangular Clarifier skimmer direction skimmer Skimmer Guard Skimmer Guard skimmer skimmer skimmer direction ...

Page 32: ...pushes it up and over the skimmer effectively clearing the transducer out of harm s way Once the skimmer has passed the guard is free to fall re immersing the transducer into the clarifier water Note Before leaving run the skimmer to insure that the skimmer guard is operating properly skimmer direction ...

Page 33: ...mmer Guard instructions above Note If skimmer is in operation shut off until mounting is complete With the extension arms swung in towards the rail clamp the conduit extension of the transducer assembly to the extension arm ends and snug tight using the two smaller u bolts Slide the conduit down so that the transducer face is immersed 3 to 6 cm into the clarifier water Note Run the transducer cabl...

Page 34: ...hat is has been properly oriented in line with the skimmer s travel Refer to the Skimmer Guard instructions Insure that the conduit clamping u bolts are sufficiently tight to hold the conduit fixed Start the skimmer and let it pass by the Skimmer Guard if used to ensure that everything is well positioned See Orienting the Skimmer Guard on page 31 for more details Make any necessary adjustments and...

Page 35: ...ections Use grounding type bushings and jumpers 285 mm 11 2 209 mm 8 2 267 mm 10 5 106 mm 4 2 Suitable location for conduit entrances Use water tight conduit hubs to maintain the enclosure rating mounting hole 4 3 mm 0 17 diameter access under lid 4 places 172 mm 6 8 lid screw 6 places programmer lid hinged customer mounting screws ...

Page 36: ...avoid ground loops ground shields only at one end Insulate shields at junctions to prevent ground loops Warning All field wiring must have insulation suitable for at least 250V Hazardous voltage present on transducer terminals during operation Relay contact terminals are for use with equipment having no accessible live parts and wiring having insulation suitable for at least 250V voltage select co...

Page 37: ...cer terminals during operation to transducers InterRanger DPS300 fieldbus communication point to point communication Siemens transducer Siemens temperature sensor if required Milltronics BIC 2 Dolphin or customer device Relay output to customer alarm pump or control device industry control system such as PLC or DCS SCADA etc mA output to customer device 1 or 2 Max 2 Max 2 Max 4 optional Smartlinx ...

Page 38: ... TS 3 is 365m 1200ft using 18 AWG 2 wire twisted shielded Relays All relays are certified for use in equipment where the short circuit capacity of the circuits in which they are connected is limited by fuses having ratings not exceeding the rating of the relays Note Relays are shown in de energized state mA Outputs To customer s equipment 0 4 20mA isolated output to 750Ω max ...

Page 39: ...heral Communications terminals as below SmartLinx Refer to the appropriate SmartLinx manual for installation and wiring information to customer device RS 232 port 15m 50 ft max to customer device RS 485 port 1200m 4 000 ft max Ground shield at one end only Beldon 8760 or equivalent 18 AWG 2 wire shielded twisted 1500 5000 ft max refer to BIC II instruction manual to RS 232 or RS 422 host device 15...

Page 40: ...or your local distributor Power Before making the power connection ensure that the proper voltage selection is set The voltage selection switch is shown in the off position Select the appropriate voltage Notes The equipment must be protected by a 15 A fuse or circuit breaker in the building installation A circuit breaker or switch in the building installation marked as the disconnect switch shall ...

Page 41: ...o the docking bay and is kept there with a magnet Use the hand programmer to change individual parameters Dolphin ComVerter The ComVerter fits into the docking bay similarly to the hand programmer and provides communications with a PC running Dolphin Plus available separately ...

Page 42: ...hat many indicators are specific to certain programming conditions and therefore not all indicators are displayed at any given time Parameter Number the programmable feature the Parameter Value pertains to Point Type the Point Number refers to a Transducer Relay mA Output or TS 3 Point Number the Transducer Relay mA Output or TS 3 the Parameter Value pertains to Parameter Value the current value o...

Page 43: ...decimal point moves Profile and TVT Pointers left input a negative Parameter Value moves Profile and TVT Pointers right delete the current Parameter Value display initiate a parameter reset store the current Parameter Value in memory complete a parameter reset switch the Parameter Value to or Units access Auxiliary Parameter Function increase the accessed display value decrease the accessed displa...

Page 44: ...ogram mode 1 Press as required to underline the Parameter Number display field and a Key in the desired Parameter Number direct access or b Press or as required scroll access Note As preset Quick Start Parameters and previously altered parameters may be scroll accessed 2 Press as required to underline the Point Number display field and a Key in the desired Point Number direct access or b Press or ...

Page 45: ...mbers These are referred to as global parameters When a global parameter is accessed the Point Number display automatically switches to Point Number 00 and returns to the Point Number previously selected when a non global parameter is accessed In the parameters sections of this manual Global parameters are identified by a G beside the Parameter Number Programming Security All operator programming ...

Page 46: ...t of service the transducer is not scanned alarm relay s energize pump relay s de energize and mA output s go to the Empty value Values 0 out of service 1 level preset 2 space 3 distance P002 Material Enter a value for the type of clarifier being monitored The DPS300 will detect the sludge interface in a variety of applications Select the appropriate value from the list below for the DPS300 mounti...

Page 47: ...rapers Settling Tanks 16 Stationary mounting without skimmers or bottom scrapers suspended solids 1 17 Stationary mounting without skimmers or bottom scrapers suspended solids 1 P005 G Units Enter the units of measure desired for programming Empty P006 and Span P007 Values 1 meters m preset 2 centimeters cm 3 millimeters mm 4 feet ft 5 inches in P006 Empty Enter the maximum distance transducer fac...

Page 48: ...Span is automatically preset to 3 000 m or equivalent Units P005 Values 0 000 to 9999 Note With the Quick Start Parameters altered as required proceed to OPERATION to identify verify basic system performance Empty P006 Span P007 XCT 12 transducer wastewater sludge maximum height of sludge blanket ...

Page 49: ... not yet risen above 25 Filling Indicator indicates the sludge level is rising Emptying Indicator indicates the sludge level is lowering Bar Graph indicates the absolute always a positive value sludge level from 0 to 100 Data Out indicates the DPS300 is transmitting data to the Communications terminals Scanning Indicators indicate the Point Number scanned independent from the Point Number display ...

Page 50: ...left in percent selects the Auxiliary Reading parameter value Key in any Parameter Number selects the Auxiliary Reading sludge level may be operator altered via P731 selects the Auxiliary Reading distance sludge level to transducer face initiates program mode access see switches the Reading between Units percent of Span completes program mode access stops starts the Point Number auto display scrol...

Page 51: ...ull 0 to 100 100 to 0 Objects close to the transducer face 0 are not detectable 3 Press to observe the mA output value for the Point Number displayed Auxiliary Reading OPERATION LEVEL SPACE or DISTANCE Empty to Full 4 20 mA 20 4 mA Objects close to the transducer face 4 mA are not detectable 4 Press to observe the Failsafe Time Left time left in percent before failsafe activation Each time a valid...

Page 52: ...TING GUIDE C If the DPS300 provides accurate and repeatable measurements however alternate Reading units failsafe action relay or mA output operation is desired proceed to APPLICATION PARAMETERS If all operating conditions cannot be observed during the System Performance Evaluation refer to ENHANCEMENT PARAMETERS Reading Measurement P920 Perform a Reading Measurement simulation to verify programmi...

Page 53: ...imension entry the associated parameters as indicated below may be scroll accessed When Operation is level P001 1 sludge volume is calculated Alternatively when Operation is space P001 2 remaining volume capacity is calculated In the RUN mode Readings are displayed in percent of and mA outputs are proportional to maximum volume to convert Readings to volumetric units see Max Volume P051 Values 0 v...

Page 54: ...3 Clarifier Dimension L Enter the length as depicted excluding both end sections if P050 7 in Units P005 Values 0 000 to 9999 P054 Level Breakpoints Universal Volume Calculation Enter level breakpoints here volume is known if P050 9 or 10 Values 0 000 to 9999 P055 Breakpoint Volumes Universal Volume Calculation Enter the volume corresponding to each Level Breakpoint entered Values 0 000 to 9999 to...

Page 55: ...ding display capabilities This value is automatically altered when Units P005 or Max Volume P051 are altered Values 0 no digits after the decimal point 1 1 digit after the decimal point 2 2 digits after the decimal point 3 3 digits after the decimal point P061 Convert Reading Enter the value to multiply the Reading by before display This feature is preset to 1 000 no conversion e g If the Reading ...

Page 56: ...nt is made the DPS300 advances to the Failsafe Material Level P071 as restricted by Failsafe Advance P072 When a valid measurement is made after the timer expires the DPS300 advances to the new sludge level if changed as restricted by Failsafe Advance P072 and the timer resets If the timer expires due to a measurement difficulty LOE flashes in the Reading display Technical difficulty messages flas...

Page 57: ...bol 2 Press or as required to scroll access the desired option 3 Press Alternatively a specific Failsafe Material Level within 50 to 150 of Span P007 may be entered directly in Units P005 or of Span P007 Values 999 to 9999 P072 Failsafe Level Advance Select the restriction applied to the DPS300 advance to and from the Failsafe Material Level When restricted preset the DPS300 advances to the Failsa...

Page 58: ... parameter presets relays to operate as Standard Alarms The Relay Allocation relay point number association and Standard Alarm P101 to P104 parameters are also preset Relay status during a measurement difficulty is dependent upon Failsafe programming See Failsafe Parameters P070 to P072 and Relay Failsafe P129 As preset relay status is held at last known sludge levels until a valid measurement is ...

Page 59: ...Status indicators are displayed and the allocated relay s de energize rises 5 of Span P007 above the Low and Low Low Alarm value the associated Alarm and Relay Status indicators extinguish and the allocated relay s energize Note Enter all Standard Alarm material level values in Units P005 or percent of Span P007 as referenced to Empty P006 To display the current value or enter a new value in perce...

Page 60: ...sponding to the DPS300 terminals is displayed in the Point Number field e g To allocate Relay 3 to Point 1 with Relay Number 3 displayed enter 1 If a relay is allocated to more than one Point Number when any Point Number in the allocation range is in alarm the relay de energizes Note When Relay Allocation is altered affected alarm P101 to P104 parameters display ch changed when accessed Use the Re...

Page 61: ...4 display ch changed when accessed Use the Relay A B Setpoints P112 P113 instead To reset the Relay Function to use Standard Alarms enter the desired Relay Set Up P100 Values 0 off relay always de energized 1 level alarm preset 2 in bounds alarm 3 out of bounds alarm 4 rate of change alarm 5 temperature alarm 6 LOE alarm Relay A B Setpoints are not applicable 7 transducer cable fault alarm 50 pump...

Page 62: ...mpty rate decreases to 5 min On On de energizes Temperature rises to 60 C 60 55 Off Off energizes Temperature falls to 55 C On On de energizes Temperature falls to 30 C Temperature 30 25 Off Off energizes Temperature rises to 25 C On On energizes Start pump down on level at 80 80 20 Off Off de energizes Stop pump down on level at 20 On On energizes Start pump up on level at 20 Pump 20 80 Off Off d...

Page 63: ...elay chatter due to material level fluctuations at the upper or lower setpoint Enter dead band in of span or units of P005 Factory set at 2 The dead band value is applied above and below the upper and lower bound setpoints P129 Relay Failsafe Use this feature for relay failsafe operation independent from the Failsafe Material Level P070 When accessed the Parameter Type display changes to the Relay...

Page 64: ...erwise proceed to OPERATION When an mA Output Parameter is accessed the mA symbol is displayed in the Point Type field and the mA output number corresponding to the DPS300 terminals is displayed in the Point Number field P200 mA Range Enter the desired range of the mA output displayed Value 0 OFF 1 0 to 20 mA 2 4 to 20 mA preset 3 20 to 0 mA 4 20 to 4 mA P201 mA Function Use this feature to alter ...

Page 65: ...Value Transducer View the current value of the mA output associated with the Point Number displayed This is the Auxiliary Reading displayed when mA is pressed in the RUN mode If both mA outputs are allocated to the same Point Number the value of mA Output 1 is displayed Values 0 000 to 22 00 P210 0 4 mA Setpoint Use this feature to reference the minimum mA output to any point in the measurement ra...

Page 66: ...on with 20 mA Trim if the device connected to the mA output displayed is out of calibration yet device recalibration is impractical Adjust this value preset to 0 000 as required to make the device connected indicate 4 000 mA when this parameter is accessed Values 1 00 to 1 000 P215 20 mA Trim Use this feature in combination with 4 mA Trim if the device connected to the mA output displayed is out o...

Page 67: ...output at the last known value until normal operation resumes LOW to produce the Empty mA output immediately on Failsafe Timer P070 expiry HIGH to produce the Span mA output immediately on Failsafe Timer P070 expiry Alternatively to produce an immediate mA output at a specific value enter the value required Values 0 000 to 22 00 ...

Page 68: ...nt Verification to adjust the rate of response to change in the sludge level 77 Display Parameters to override the preset display operating characteristics 78 Echo Processing to troubleshoot false echo detection 81 Advanced Echo Processing intended for use by Siemens Service personnel 83 Test Parameters intended for use by Siemens Service personnel 90 Measurement Parameters to verify Application P...

Page 69: ...a record is displayed results are based on current programming which may have been altered since the record was saved This permits the effect on the echo profile to be observed when changing an echo parameter P330 Profile Record In addition to serving as a library for profile records this parameter provides two functions manually records and saves echo profiles displays an echo profile recorded ma...

Page 70: ...1 G Auto Record Enable Use this feature if desired to enable disable the Auto Profile Record function Values 0 off 1 on P 332 G Auto Record Transducer Use this feature if desired to specify the Transducer Point Number for which Auto Profile Records are saved This Feature is preset to Point Number 1 Values 0 any Transducer 1 Transducer 1 preset 2 Transducer 2 P333 G Auto Record Interval Enter the t...

Page 71: ...ical level which in conjunction with Auto Record A Setpoint defines the boundaries for Auto Profile Records to be stored Values 999 to 9999 P336 G Auto Record Filling Emptying Use this feature to restrict Auto Profile Records from being saved unless the level is rising falling or either If the level changes at a rate in excess of the corresponding Filling Emptying Indicator P702 P703 values the Ec...

Page 72: ... P650 Offset Calibration Use this feature if the Empty P006 value was estimated or if the reported sludge level is consistently high or low by a fixed amount e g 2 cm Before using this feature verify the Empty P006 value as measured or estimated was entered correctly Temperature P664 is correct Offset Reading P062 value if used was entered correctly To perform an Offset Calibration With the materi...

Page 73: ...ted when an Offset Calibration is performed Alternatively if the amount of Offset Correction required is known and performing an Offset Calibration is not desired enter the amount to be added to the Reading before display Values 999 to 9999 P653 Velocity View the actual sound velocity in water at the current temperature P664 When a Sound Velocity Calibration is performed this value is automaticall...

Page 74: ...or between these two points and select average Values 1 AUTO 2 Temp Fixed 3 XCT 12 Transducer 4 TS 3 Temperature Sensor 5 Average 6 TS 3 SENSOR 1 P661 Temp Fixed Use this feature if a temperature sensing device is not used Enter the temperature in C of the clarifier wastewater If the temperature varies with distance from the transducer enter the average temperature This value is preset to 20 00 C ...

Page 75: ... View the current temperature in C This is the value displayed when is pressed in the RUN mode If Temp Source P660 is set to any value other than Fixed Temp the value displayed is the temperature measured If Temp Source is set to Fixed Temp the P661 value is displayed Values 50 to 150 Rate Parameters P700 to P707 P700 Max Fill Rate Adjust the DPS300 response to increases in the actual sludge level...

Page 76: ... emptying indicator may toggle unnecessarily and may cause relay chatter if relays are controlled by rate This feature can be used to average those changes This value automatically alters the Rate Update Time P705 and or Rate Update Distance P706 Alternatively these parameter values may be altered independently Enter the time period distance the Rate Value is averaged before display update Values ...

Page 77: ...r material agitator a new measurement outside of the Echo Lock Window P713 must meet the sampling criterion P712 For total lock Echo Lock Window P713 is preset to 0 The DPS300 continuously searches for the best echo according to the algorithm chosen P820 If the selected echo is within the window the window is then centred about the echo If not the window widens with each successive shot until the ...

Page 78: ...e of the echo used to derive the Reading When a new measurement falls within the window the window is re centred and the new Reading is calculated Otherwise the new measurement is verified by Echo Lock P711 before the DPS300 updates the reading When 0 is entered preset the window is automatically calculated based on the Max Fill Empty Rate P700 P701 Values 0 000 to 9999 Display Parameters P730 to ...

Page 79: ...g is independent from transducer scanning Values 0 5 to 10 preset to 1 5 seconds P733 G Scroll Access Use this feature to select the programming mode parameter scroll access option desired Select off to scroll access all operator accessible parameters smart to scroll access Quick Start previously altered and tagged parameters tagged to scroll access operator tagged parameters only Any accessed par...

Page 80: ...f 500m or more Turn on the termination if required Values 0 off 1 on P749 Serial Bus Type V Displays the type of communication bus the DPS300 is currently set for If there is no connection the DPS300 defaults to RS 485 If a bus type other than RS 485 is connected the DPS300 displays the type of bus it is or is attempting to communicate with Displays 232 RS 232 485 RS 485 default setting when nothi...

Page 81: ... Ø error code refer to the SmartLinx module documentation for explanation of the error code P792 Bus Error Count This register increments by 1 each time a bus error P752 is reported The resister is factory set at 0 and can be preset to any value The register is reset to 0 by the master reset P999 Echo Processing Parameters P800 to P807 P800 Near Blanking Use this feature if the material level is i...

Page 82: ...eeds the Confidence Threshold that echo is considered for evaluation by Sonic Intelligence Values 0 y y 0 to 99 P805 V Echo Confidence Use this feature to monitor the effect of transducer aiming location and mechanical transducer mounting isolation This is the value displayed when is pressed for 4 seconds in the RUN mode Echo Confidence is displayed as E is displayed if the transducer cable is ope...

Page 83: ...Profile The relevant parts of an echo profile are listed here These are visible in either Dolphin Plus or an oscilloscope P810 Scope Displays Use this feature to monitor the results of Echo Processing parameter alterations Connect an oscilloscope to Display Board TP4 TP5 and TP6 GND SCOPE and SYNC Observe any combination of the following Scope Displays DISPLAY DISPLAY SYMBOL P C n u Echo Profile T...

Page 84: ... rate limit P816 V Echo Time Raw Observe the time of flight in ms between the transmit pulse and the raw echo i e before processing Values 0 000 to 9999 When a Profile Pointer Parameter is accessed the Echo Lock Window scope display changes to a Profile Pointer display The Profile Pointer may be moved to a number of points on the Echo Profile to gain specific information dependent upon the Profile...

Page 85: ...rnate algorithm while observing the resultant echo processing displays To select an Algorithm 1 Press to display the Auxiliary Function symbol 2 Press or to display the desired Reading display symbol s 3 Press when the desired Algorithm is displayed Algorithms are characterized by a combination of echo characteristics area echo with most area above the TVT largest echo with the largest amplitude a...

Page 86: ...he amount in ms of long shot Echo Profile smoothing required to eliminate jagged peaks in the Echo Profile When a value is keyed in the nearest acceptable value is entered Values 0 off preset greater wider P825 Echo Marker Percentage Use this feature when the reported material level fluctuates slightly due to a variable rise in the leading or trailing edge of the selected echo on the Echo Profile ...

Page 87: ... Curve most suited to the material and clarifier This feature is automatically altered when Material P002 is altered Do not select TVT SLOPES when the bF or bLF Algorithm P820 is selected Values 1 TVT Short Curved 2 TVT Short Flat 3 TVT Long Flat 4 TVT Long Smooth Front 5 TVT Long Smooth 6 TVT Slopes P831 TVT Shaper Use this feature to turn the TVT Shaper on or off Turn the TVT Shaper on before al...

Page 88: ...oint of the curve is respectively changed By changing the value of adjacent breakpoints the effective bias to the shaper can be broadened to suit the desired correction In the case of multiple false echoes shaping can be applied along different points of the curve Shaping should be applied sparingly in order to avoid missing the true echo To change a breakpoint with the desired transducer point se...

Page 89: ...start of the Echo Profile Enter the time in ms for the TVT Curve to decrease from the TVT Start Min P833 point to the TVT Curve baseline Values 0 to 9999 P835 TVT Slope Min Enter the minimum slope in dB s for the middle portion of the TVT Curve This feature preset to 9000 is used in conjunction with TVT Start Duration when a long flat TVT Type is selected to ensure the TVT Curve remains above fals...

Page 90: ...ns Service personnel P900 V Software Rev Access this parameter to determine the EPROM Rev without removing the enclosure lid Values 00 00 to 99 99 P901 V Memory Press to activate the DPS300 memory test When the test is successful PASS is displayed Otherwise one of the following values is displayed indicating the type of memory failure Values PASS memory test successful F1 RAM F2 NOVRAM F3 EEPROM F...

Page 91: ...feature connect terminal block contacts 27 to 29 and 28 to 30 On successful test completion PASS is displayed If FAIL is displayed repeat the test The first test performed sets up the auto polarity function P907 Programmer Interface Press to activate the programmer interface two way infrared communications test On successful test completion PASS is displayed Otherwise FAIL is displayed P908 Scanne...

Page 92: ...on Parameter programming when performing a dynamic level test over at least 2 empty fill cycles for each clarifier is impractical Access the following parameters to take an ultrasonic measurement and automatically display the corresponding Reading in the Parameter Value field set the mA output value accordingly set the relay status accordingly transmit the corresponding point data Note If measurem...

Page 93: ...ield P920 Reading Measurement The Reading corresponds to all associated programming P921 Material Measurement The Reading corresponds to the distance between Empty P006 and the sludge level P922 Space Measurement The Reading corresponds to the distance between the sludge level and Span P007 P923 Distance Measurement The Reading corresponds to the distance between the sludge level and the transduce...

Page 94: ... be performed if a Point Number is being reassigned to a different clarifier To perform a Global Master Reset 1 With the Parameter Number field accessed key in 999 2 With the Point Number field accessed key in 00 3 Press C ALL is displayed until the reset is complete To perform a Point Number Master Reset 1 With the Parameter Number field accessed key in 999 2 With the Point Number field accessed ...

Page 95: ...t the same time a high frequency is used to obtain reflections from lighter less dense sludge layers Transducer The Siemens XCT12 transducer is a very versatile transducer because it can be used at several different frequencies outside its normally selected frequency This effect comes from the higher order vibrational modes that exist in any physical structure In the case of the XCT12 transducer t...

Page 96: ... of the echo profile outside of the measurement range Span P007 Range Extension P801 below the TVT Curve P830 to P835 and less than the Confidence Threshold P804 are automatically disregarded The remaining portions of the Echo Profile are evaluated using the Algorithm P820 programmed When a combination of Algorithms are used the portion of the Echo Profile providing the best averaged Echo Confiden...

Page 97: ...ies between the transducer face and the sludge surface a TS 3 temperature sensor mounted in between can be used in combination with the transducer Then when Temp Source P660 is set for both the transducer and TS 3 temperature measurements are averaged Scanning When echo processing is complete if two clarifiers are monitored the scanning relay changes state to supply the transmit pulse to the trans...

Page 98: ...owing 2 breakpoints very near the minimum level 1 breakpoint at the tangent points of each arc 1 breakpoint at each arc apex 2 breakpoints very near the maximum level For combination curves ensure at least 2 breakpoints are entered immediately before and after any sharp angle as well as 1 breakpoint exactly at the angle on the curve Communication Support The DPS300 provides digital communication t...

Page 99: ... 3 characters 001 to 003 e g the message pertains to Point Number 1 Reading 5 characters 0 000 to 9999 e g reading 678 9 DDDD no data EEEE overflow Status A 1 character 0 to F convert to binary e g temp echo and cable OK not priority MSB LSB 1 temp alarm 1 loss of echo failsafe expired 1 transducer cable fault 1 priority point Status B 1 character 0 to F convert to binary e g scan point is in high...

Page 100: ...ition Temp 2 characters 32 to FA convert to decimal and subtract 100 e g temperature 20 C Percent 5 characters 00 00 to 9999 e g current level 85 00 of span EEEE field overflow End Of Message CR 0D MT 01 Hold Message e g Field Name Definition Start Of Message STX 02 Message Type 2 characters 01 indicates the DPS300 was removed from the RUN mode End Of Message CR 0D Start of Message End of Message ...

Page 101: ... SCANNED e g Field Name Definition Start Of Message STX 02 Message Type 2 characters 03 indicates the Point Number is not in service Point 3 characters 001 to 003 e g Point Number 1 End Of Message CR 0D Start of Message Point End of Message Message type ...

Page 102: ...g bay recess with a clean dry cloth if necessary before installing the programmer Inspect the transducer regularly By nature of its ultrasonic emissions the face has self cleaning properties However scum and algae can build up on the sides and if not removed can encroach onto the face adversely affecting performance Depending on the application the transducer face may require cleaning to maintain ...

Page 103: ...ress 5 times or more to verify stability Increase the Failsafe Timer P070 value if failsafe operation will not be compromised by the larger value LOE may be an indication that the sludge is at a level exposing the clarifier at that point The slope bottom of the clarifier may be reflecting the echo away from the transducer Move the transducer to a location where there is still a sludge blanket or l...

Page 104: ...o Verify the false echo is still ignored regardless of the sludge level or empty fill activity Wrong Reading If the Reading is erratic or jumps to some incorrect value periodically ensure the 1 Sludge level is not beyond the transducers maximum range 2 Material P002 value matches the type of sludge monitored If the periodic incorrect value is always the same see Fixed Reading If the incorrect valu...

Page 105: ...observing the results If performance is not improved return the Confidence Threshold to the preset value Connect an oscilloscope to the DPS300 see ENHANCEMENT PARAMETERS Scope Displays P810 While monitoring the Echo Marker select the Algorithm P820 best suited to the clarifier If the Area algorithm is used and narrow noise spikes are evident on the long shot Echo Profile turn the Spike Filter P821...

Page 106: ...00 600 300 300 600 600 600 600 P706 0 01 0 3 0 3 0 1 0 1 0 3 0 3 0 3 0 1 0 1 0 3 0 3 0 1 0 1 0 3 0 3 0 3 0 3 MEASUREMENT VERIFICATION P710 0 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 P711 0 1 1 1 1 1 1 3 1 1 3 3 3 3 1 1 3 3 P712 1 1 7 3 7 3 5 2 5 2 7 3 7 3 7 3 5 2 5 2 7 3 2 2 5 2 5 2 7 3 7 3 5 3 5 3 DISPLAY P733 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ECHO PROCESSING P800 0 5...

Page 107: ...54 Level Breakpoints record values on a separate sheet P055 Breakpoint Volumes record values on a separate sheet READING VALUE P060 Decimal Position P061 Convert Reading P062 Offset Reading FAILSAFE P070 Failsafe Timer P071 Failsafe Material Level P072 Failsafe Level Advance RELAIS P100 G Relay Set Up P101 High Alarm P102 Low Alarm P103 High High Alarm P104 Low Low Alarm P110 Relay Allocation P111...

Page 108: ...x P302 V Temp Sensor Max P330 Profile Record P331 G Auto Record Enable P332 G Auto Record Transducer P333 G Auto Record Interval P334 G Auto Record A Setpoint P335 G Auto Record B Setpoint P336 G Auto Record Filling Emptying P337 G Auto LOE Time P340 V Date of Manufacture P341 V Run Time P342 V Start Ups RANGE CALIBRATION P650 Offset Calibration P651 Sound Velocity Calibration P652 Offset Correcti...

Page 109: ...MENT VERIFICATION P710 Fuzz Filter P711 Echo Lock P712 Echo Lock Sampling P713 Echo Lock Window DISPLAY P730 G Auxiliary Reading P731 G Auxiliary Reading Key P732 G Display Delay P733 G Scroll Access P740 Peripheral Communications P748 RS485 Termination P749 Serial Bus Type V P772 Baud Rate P790 Hardware Error P791 Bus Error P792 Bus Error Count ECHO PROCESSING P800 Near Blanking P801 Range Extens...

Page 110: ... P818 V Profile Pointer Distance P819 V Profile Pointer Amplitude P820 Algorithm P821 Spike Filter P822 Narrow Echo Filter P823 Reform Echo P825 Echo Marker Trigger P826 Echo Position P830 TVT Type P831 TVT Shaper P832 TVT Shaper Adjust record values on a separate sheet P833 TVT Start Min P834 TVT Start Duration P835 TVT Slope Min P841 Long Shot Number P843 Long Shot Frequency P845 Long Shot Width...

Page 111: ...uments Inc 1954Technology Drive P O Box 4225 Peterborough ON Canada K9J 7B1 Tel 705 745 2431 Fax 705 741 0466 Email techpubs smpi siemens com 7ml19981bc01 Rev 1 2 Siemens Milltronics Process Instruments Inc 2008 Subject to change without prior notice Printed in Canada ...

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