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Table of Contents
Related Manuals for Pulsar ULTRA 5
Summary of Contents for Pulsar ULTRA 5
- Page 1 ULTRA Series ERVICE ANUAL...
- Page 3 IABILITY Pulsar Process Measurement Limited guarantee for a period of 2 years from the date of delivery that it will either exchange or repair any part of the product returned to Pulsar Process Measurement Limited if it is found to be defective in material or workmanship, subject to the defect not being due to unfair wear and tear, misuse, modification or alteration, accident misapplication or negligence.
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Page 5: Table Of Contents
CONTENTS About Service Parameters ............................1 DATEM overview ..............................3 Transducer 1 Parameters ............................7 P020 Set DATEM 1 ............................7 P021 Set Dist 1 ..............................9 P024 Num Pings 1 ............................10 Transducer 2 Parameters ............................11 P030 Set DATEM 2 ............................11 P031 Set Dist 2 .............................. - Page 6 DATEM Custom ..............................27 P109 Start Point ............................. 27 P110 Middle (mV) ............................27 P111 End Point .............................. 28 P112 Min DATEM ............................28 Other Useful Parameters ............................29 Tariff Guard Control ............................. 29 P113 Rate Sampling (from Soft Revision 4.6.3.1 (5.7.8 released)) ............ 29 P114 Array Count ..........................
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Page 7: About Service Parameters
About Service Parameters The following parameters can only be accessed via the following passcode 552621 and can be used to modify the DATEM Echo Processing Algorithms in particularly arduous applications. Further parameters allow changes to parameters specific to communications and other hardware functions. - Page 8 This page left blank intentionally Page...
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Page 9: Datem Overview
DATEM overview Digital Adaptive Tracking of Echo Movement, or DATEM, is a powerful algorithm unique to Pulsar’s ultra range of products. Care should always be taken when adjusting and analysing echo profiles, if in doubt, please contact Pulsar technical department. - Page 10 Fig 2: Raw echo plus near and far blanking. Near Blanking Far Blanking The shaded left hand side of the screen shows the near blanking and the shaded right hand part of the screen the ‘far blanking’ the ultra unit will measure 20% further than its programmed empty distance as a factory setting, this is known as ‘far blanking’.
- Page 11 Fig 3: Describing ringdown and echoes. Ringdown Echo Secondary Echo The red trace is the echo signal return, the horizontal scale is distance to target in metres and the vertical scale is signal strength return in millivolts. The echo above is approx 3.8m from the transducer and has signal strength of 480mv. Page...
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Page 13: Transducer 1 Parameters
Transducer 1 Parameters P020 Set DATEM 1 Default = 0 P020 can be accessed via the Operator Password (Default 1997). Option Description 0 = Quit Leave P020 without any change to the present DATEM trace. 1 = Capture DATEM trace of entire visible range taken and all echo returns referenced out. - Page 14 The echo profiles below show the effect of Capture, the ‘Gate’ has been removed for clarity. Fig. 1. Empty tank, the unit will pick up on the first echo after initial switch on. Fig. 2. Empty tank after a Capture. Unit will show Loss of Echo. Page...
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Page 15: P021 Set Dist 1
Fig. 3. Echo profile after product has entered tank. P021 Set Dist 1 Default = 0.000 Allows the user or service personnel to determine which echo is to be displayed. On start up, if the unit displays an incorrect reading then simply enter the distance from the transducer to the required level and, if an echo is present at this point, the Gate will establish itself around the chosen echo, DATEM will update in front of the Gate and reference out any other unwanted echoes. -
Page 16: P024 Num Pings 1
P024 Num Pings 1 Default = 4 Determines the number of times the transducer is “pinged” in each “shot”, during every processing cycle. In applications where there is a high level of noise or attenuation due to dust or angles of repose, increasing the number of “pings” may result in a larger “Average”... -
Page 17: Transducer 2 Parameters
Transducer 2 Parameters These parameters are identical to those for transducer 1 and are used to carry out the same functions on units and applications utilising a second transducer. P030 Set DATEM 2 See P020 P031 Set Dist 2 See P021 P034 Num Pings 2 See P024 Page... - Page 18 This page left blank intentionally Page...
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Page 19: Echo Control
P870 (fill damping) = 99999 P871 (empty damping) = 99999 Care should be undertaken when changing the above parameters as they could affect the stability of the reading if applied incorrectly. Only adjust when advised by a Pulsar Engineer. Page... -
Page 20: P041 Ringdown Loss
PC Ultra display when receiving echo traces (regular echo = yes). A lower figure gives increased definition but is slower and visa-versa. Please seek advice from Pulsar before carrying out any adjustment. Values Min = 1 Max = 32... -
Page 21: P044 Slope
P044 Slope Default = Transducer Dependant Angle at which the rate of signal amplitude decay compensation (gain) is applied over distance starting at P43 (see table above). Values Min = 0 Max = 100 P045 Num Averages Default = 3 Number of processing cycles or transducer ‘shots’... -
Page 22: P048 Gate Lock
P048 Gate Lock Default = 0 This parameter should only be used under the direction of Pulsar. If ‘ON’ the gate will remain ‘locked’ on the selected echo, regardless of the presence of any other sized echo outside the gate, unless the selected echo falls below the value of the loss limit. -
Page 23: Draw / Inflow
Draw / Inflow The Pump Inflow and Pump Draw parameters are only used when the unit is set up to calculate Pump Efficiency (available in Ultra 5 and Zenith units only). P150 Pump Inflow Default = 0.00 This is a read only parameter that displays the calculated inflow rate in m/min. - Page 24 This page left blank intentionally Page...
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Page 25: Datem Flags
DATEM Flags P064 Near Band Default = 0.2 This parameter used in conjunction with P65, is designed to prevent the echo ‘jumping’ to a false echo that is further away when the echo enters into the near blanking area. As the echo approaches to within 0.2m from the transducer blanking area and is then ‘lost’... -
Page 26: P067 Choose Peak (Software Revisions From 3.6.0)
P067 Choose Peak (Software Revisions from 3.6.0) Default = 1 This parameter is used to determine which echo is selected for processing. DATEM software will detect all valid echoes i.e. all peaks that exceed DATEM plus the Loss Limit Values (P81 & 82). The peak then chosen for processing will be selected according to option chosen as detailed below. -
Page 27: P078 Use Temp
P078 Use Temp Default = 1 This parameter determines if Temperature compensation is used or not. Options: 0 = No 1 = Yes P079 Use Gate Default = 1 This parameter determines if the Gate is used. If set to 0 = No, then there will be no agitator control, P47 Outside Count and P48 Echo Lock will be disabled, the unit will process valid echoes which appear above the Loss Limit and in accordance with the setting of P67 (choose Peak). - Page 28 This page left blank intentionally Page...
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Page 29: Ultra Sound
Ultra Sound P081 Near Loss Default = 15.00 (150mv) This parameter sets the Near “threshold” above DATEM which an echo must exceed, before it is recognised as a valid echo. The value of this parameter can be increased to assist in the elimination of unwanted signals or decreased to improve sensitivity in order that attenuated signals can be validated and processed. -
Page 30: P084 Jump Cutoff (Software Revisions From 3.6.0 To 6.3.7)
P084 Jump CutOff (Software Revisions from 3.6.0 to 6.3.7) Default = 40.0m This parameter determines the distance, from the face of the transducer, that the unit will process the First valid echo, providing that a Larger echo is not seen beyond this point. -
Page 31: Debug Level
Debug Level P086 Ping Delay (From Software Revision 6.4.1) This parameter is used to delay the time between each ping in order to prevent the risk of a second ping interfering with the initial return echo and causing problematic readings. It delays the time between each ping. P087 Fail Time 2 Default = 1 min This parameter determines the time after an event, such as “Loss of Echo”, that a... -
Page 32: P099 System Type (From Software Revision 6.9.0)
P099 System Type (From Software Revision 6.9.0) P99 allows the system type of the unit to be changed. It is only available by direct access (see ‘about service parameters’). N.B. This will change the system type of the unit and will perform the equivalent of a P88 default for the new system type. -
Page 33: Datem Custom
DATEM Custom P109 Start Point Default = 0.25m This parameter determines the Distance at which the DATEM trace will start, or stand off, from the Ring Down. P109 Start Point P107 Blanking Distance P110 Middle (mV) Default = 700mv This parameter determines the height at which the angle of the DATEM trace will start. -
Page 34: P111 End Point
P111 End Point Default = 0.8m This parameter determines the Distance at which the DATEM trace will fall to the value of Sensitivity (P905 Xducer 1) and (P915 Xducer 2). P111 End Point metres P112 Min DATEM Default = 1 This parameter determines whether the Min DATEM is in use or not. -
Page 35: Other Useful Parameters
The rate validate will adjust the calculated time to overflow. Increasing the value will have the effect of bringing the pumps on later and visa-versa. This parameter should only be adjusted by Pulsar personnel when commissioning a Tariff Guard application. -
Page 36: Comms / Logging Board
Comms / Logging Board Only available if Comms is enabled (Profibus or modbus). P141 Serial to Comms Board Default = 0 To allow RS232 communication with the integrated comms processor. This must be set remotely via Ultra PC or Windows Terminal. The parameter will automatically revert back to 0 = No when the RJ11 cable has been removed and “updating”... -
Page 37: Pump Control
Pump Control P194 – P199 Pumping Rate Default = 1.0 This parameter is a simulation parameter in units of metres/min that sets the rate of pumping for any pump assigned the appropriate relay whilst in test mode. P359 Maximum Pumps (From Software Version 6.3 to 6.4.5 Default = 0 This parameter will restrict the number of pumps that will run regardless of the number of pumps set in the unit and the level shown on the display. -
Page 38: Totalisers
Totalisers P798 Max Flow Cut Off (From Soft Revision 6.4.2 (6.7.3 released)) Default = 4 This parameter can be set to inhibit the flow totalisers to a maximum value of 4 times the maximum flow rate. So for example with a max flow of 20 l/s, set in the P705, the totaliser will be stop totalling the flow when it reaches 80 l/s or higher. -
Page 39: Temperature Calibration
Default = 194 and 954 These two parameters are used to set the low and high Analogue to Digital conversion for the pulsar external temperature sensor when using the temperature input option. When the correct external range has been selected in P852 (option 4 = external range A, option 5 = external range B) the external temperature sensor can be calibrated at its lowest temperature, P855, and its highest, P856. -
Page 40: Sound Velocity Calibration
Sound Velocity Calibration P861 – P862 Calibrate Distance (xdr1 – xdr2) (From S/W rev 6.8.0) This parameter is used to calibrate the sound velocity using a known fixed distance. Enter the correct distance from the face of the transducer to the target and the unit will automatically calculate P860 (Sound Velocity) to suit. -
Page 41: P881 Fixed Distance
P881 Fixed Distance Default = 0.2m This parameter is used to set the width of the gate either side of the echo measurement point (blue vertical line in Ultra PC) when P880 (Gate Mode) is set to 0 = Fixed. The total gate width will be a maximum of twice this value. 0.4m Page... -
Page 42: P882 Process Filter (From Software Revision 6.6 (6.7.3 Released))
P882 Process Filter (From Software Revision 6.6 (6.7.3 released)) Default = 3 Determines the rate of process filtering. Setting to fast increases the response of the unit but will also show more discrepancies or ‘spikes’ as the filtering is less intensive. -
Page 43: P884 Peak Percentage
P884 Peak Percentage Default = 50 This parameter is used if you choose a solids application, P102 (Material) = 2 (Solids), where there may be angles of repose on the material. It can be used to choose the point at which the measurement is taken within the returned echo. Blue line on leading edge of echo for liquid applications, but will move to centre of echo for solid applications. -
Page 44: Reform
Note* This parameter is only available in versions 7.0.6 onwards and adjustments should only be made when using PC Ultra to view echo traces. You are advised to seek advice directly, from Pulsar, before making any changes. When P102 (Material) = 2 (Solids) -
Page 45: P905 & P915 Sensitivity (Xd1 & Xd2)
P905 & P915 Sensitivity (Xd1 & Xd2) Vertical Scaling in milli-volts Default = 5.0 (50 mv) If there is considerable acoustic noise present intermittently where the transducer is located, then it is possible for the transducer to detect some of this, and it can interfere with the DATEM signal. -
Page 46: P906 & P916 Side Clearance (Xd1 & Xd2)
P906 & P916 Side Clearance (Xd1 & Xd2) Default = 0.05m This parameter sets the distance by which the yellow DATEM trace will be separated from the red trace as the DATEM trace passes around an echo returned from an obstruction. Page... -
Page 47: Remote Communicator
Remote Communicator P063 Kiss Required (From Software Revision 6.9.2) Note* This parameter is direct access only (see page 1). Default = 1 This parameter determines whether or not an IR remote communicator needs to be shown to the front of the unit before it can be used. Replaces P089 Kiss Enable. Options: 0 = No 1 = Yes... -
Page 48: Applications
In order to apply these parameters correctly the user should have a good working knowledge of Pulsar equipment. Pulsar PC software should always be used to monitor the echo profile and record the effect that the parameter changes are having. -
Page 49: Application 1 Enclosed Tank
Application 1 Enclosed Tank Whilst this application may seem easy, you can get problems with the unit observing multiple echoes. If the secondary or tertiary echoes are of a sufficient signal strength then fluctuating readings could occur. This could be the case in a liquid vessel with a domed top that can re-focus a secondary echo magnifying it to a height that could cause problems. - Page 50 P44 = Slope. Change to 0. This is the gain level parameter, changing it to zero ensure that there is no gain applied anywhere on the echo profile. Thus reducing the chance of larger multiples. P47 = Outside Count. Change to 25. This is the parameter that controls the movement of the gate.
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Page 51: Application 2 Turbulent Liquid Surface
Application 2 Turbulent Liquid Surface When the level in a wet well gets low the surface can become less reflective for ultrasound, there are several reasons for this. The surface is further away, and, can become agitated due to the pumping action, the inflow to the wet well falls further and so becomes more spread out leading to increased surface movement and foam on the surface, in extreme instances the noise of the falling water can lead to the transducer picking up acoustic noise... - Page 52 Follow the procedure below to improve the situation. Enter the service code (552621) and change the following parameters. P43 = Breakpoint. Change to a value that will enable you to apply gain to the real echo whilst avoiding applying gain to a false echo (e.g. pump heads). P44 = Slope.
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Page 53: Application 3 Fast Moving Solids
Application 3 Fast Moving Solids Crusher Control. (or similar) For crusher control the unit needs to work at high speed to ensure that the bowl does not overfill, the transducer needs to be positioned so that it avoids the inflow to the bowl and is not liable to get damaged. - Page 54 Follow the procedure below to help avoid any problems. Enter the service code (552621) and change the following parameters. If you have not done so already choose Solids in P102. This will also change the following parameters. P71 = Update Datem = 0. Using the masking technology require valuable processing time, and is not necessary for these types of applications.
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Page 55: Application 4 Silo Level (Solids)
Changing the parameters as listed below is an endeavour to get a ‘best fit’ for most applications but if in doubt contact your Pulsar representative for further advice. Follow the procedure below to help avoid any problems. - Page 56 Enter the service code (552621) and change the following parameters. If you have not done so already choose Solids in P102. This will also change the following parameters. P71 = Update Datem = 0. P88 = Fixed Distance (Gate Width) = 0.3m Now Change the following parameters these are not adjusted by choosing Solids in P102.
- Page 57 In most solids application there is no requirement to measure very close to the transducer blanking area, if this is the case then we can shape DATEM away from the ringdown area which can decrease the possibility of the unit reading high when the level is low.
- Page 58 P71 = Update Datem = 0. We are generally looking for the largest echo above the loss limit thresholds so datem is not needed in most applications, if the silo has obstructions then it should be emptied and Datem should be allowed to shape around the false echoes before being switched off.
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Page 59: Fault Finding
If the unit is set for 240vac (which is how they leave Pulsar) and supplied 110vac then the unit may appear to work and display the correct distance (if the product is close enough) but the relays will not operate and the unit will go LOE when the level moves further away from the transducer. - Page 60 If after switch on the unit displays one of the following massages. No Xducer, Xducer Fault, L.O.E. or Failed Safe. Then we need to check the transducer voltages and wiring. Transducer Extension Cable Cable 18-24VDC 5-7VDC Transducer 0VDC Unit Junction Shield Twisted Shielded Pair...
- Page 61 The software will then adapt to any changes to the echo profile in front of the moving target enabling Pulsar to keep the correct reading under constantly changing process conditions.
- Page 62 The above process and the Pulsar software is excellent at reading the correct echo under difficult conditions, however it is still good practice to install the transducer in the optimum position within the application.
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