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Pulsar dBi-M, Инструкция по эксплуатации

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PULSAR MEASUREMENT 

 

31  

 

Gate and Measurement line 

The distance line shows which echo is being selected for the measurement. 
The vertical blue lines remain fixed at either side of the distance line, and act 
as a stability mechanism to filter out any momentary echoes from passing 
machinery/stirrers etc. 
 
 
 
 
 
 
 
 
 
 
 
 

DATEM (Digital Adaptive Tracking of Echo Movement) 

The (Blue) DATEM trace acts as a threshold which defines if echoes are 
considered as candidates for measurement.  Any echo whose peak is below 
the DATEM line, will not be considered for measurement.  In effect the 

transducer will not “see” it.

 

Measurement marker 

Gate 

Level 

Distance 

Содержание dBi-M

Страница 1: ...dBi M Instruction Manual...

Страница 2: ...2...

Страница 3: ...ever arising out of the application or use of any product or circuit described herein Every effort has been made to ensure accuracy of this documentation but Pulsar Measurement cannot be held liable f...

Страница 4: ...area location 17 Preparation for Operation 18 Maintenance 18 Parameter Defaults 18 Chapter 3 Getting Results With dBi M Transducers 19 Setting up Your Application 19 Resetting Factory Defaults 20 Chap...

Страница 5: ...47 Modbus Poll Address 48 Alarm limits 48 Datem 49 Volume 51 Conversion 52 Breakpoints 57 Chapter 6 Modbus 59 Modbus Protocol 59 Device Address 59 Function Codes 59 Register Address 60 Registers 60 Ad...

Страница 6: ...will ensure that your installation is as simple as possible About this Manual It is important that this manual is referred to for correct installation and operation There are various parts of the man...

Страница 7: ...with calibration being achieved either by using a Modbus RTU programmer calibrator or via Pulsar s free dBi M PC software The dBi M units are based on a PZT ceramic transducer element The nominal bea...

Страница 8: ...g IP68 NEMA 6P Max min temperature electronics 40 C to 80 C 40 F to 176 F Flammable atmosphere approval Compatible with approved transducers see spec sheets CE Approval See DoC in this manual for deta...

Страница 9: ...G PC Programming via RS485 converter PC setup installation echo profiles cloning and troubleshooting Programming security Via passcode Program integrity Via non volatile memory SUPPLY Operating Voltag...

Страница 10: ...dBi M INSTRUCTION MANUAL 10 EU UK Certificate of Conformity...

Страница 11: ...el of the material and be perpendicular to the surface While the dBi M6 and 10 should be mounted at least 30cm 0 98 feet above the maximum level of the material and be perpendicular to the surface And...

Страница 12: ...e should be no high voltage cables or electrical wiring near the transducer cabling Dimensions The dimensions of the dBi M Series Intelligent Transducerw are shown below Rear Thread Mount dBi M6 dBi M...

Страница 13: ...PULSAR MEASUREMENT 13 Front Thread Mount dBi M6 dBi M10 65mm 2 6 160mm 6 3 77mm 3 2 Thread 61mm 2 40 Clearance hole dBi M6 dBi M3 65mm 2 6 160mm 6 3 77mm 3 1 5 Thread 49mm 1 93 Clearance hole dBi M3...

Страница 14: ...ors in the measurement of ambient temperature Attention should also be taken when mounting the unit to ensure that strong windy conditions are avoided wherever possible to prevent abnormal operation D...

Страница 15: ...asket between the flange of the dBi Series Intelligent Transducer and the connection to the vessel Standpipe Installations When mounting the dBi Series Intelligent Transducer to a standpipe care shoul...

Страница 16: ...faced Flanged Transducer is used Please consult Pulsar Measurement for a full availability of options Cable The dBi M Series Intelligent Transducer comes with a fitted integral cable if this cable is...

Страница 17: ...EN60079 14 2014 The dBi M series intelligent transducer has bare wires ensure that suitably specified barriers are employed Marking for the dBi M transducer Zener Barriers RS485 RS485 Power 0V Gnd Re...

Страница 18: ...nsducer is reading what you would expect in terms of distance from the face of the transducer to the material Then you can proceed with any programming required for the intended application It is sens...

Страница 19: ...r Blanking Near blanking P107 is the distance from the face of the transducer that the dBi M Series Intelligent Transducer will not record a level nearer than A typical reason to increase this from th...

Страница 20: ...ace and on completion Checking Information Specific to your dBi M Intelligent Transducer There are some parameters dedicated to each individual dBi M Series Intelligent Transducer such as the firmware...

Страница 21: ...lications these can be saved for your records or sent via e mail back to Pulsar Measurement for our engineers to analyse dBi M PC software can also be used to re program your unit to the latest versio...

Страница 22: ...been installed on to your local machine double click on the dBi M PC shortcut and a window will appear prompting you to enter a passcode as shown below The password to enter the PC software is 1997 o...

Страница 23: ...trip None of the menu strip drop down menus can be accessed if you are viewing echo profiles To access these menu options change regular echo to Off Main Screen Main screen selection tabs Menu Strip S...

Страница 24: ...n menu select the required parameter number and press the read button to view the details and current value of a parameter Change the value to the required amount and then press enter the change is th...

Страница 25: ...abling you to select the comport that the dBi M is connected to Or if a dBi M is already connected to the PC software you can close the com port ending your session with the dBi M series intelligent t...

Страница 26: ...3 View list of parameters read with values This option displays a table with all parameters that are programmed into the dBi M along with the current value set and the default value 4 View list of ru...

Страница 27: ...a play button green circle with a triangle in the centre and a stop button When recording an echo trace you will first be prompted to save the echo recording on to your PC When done the record button...

Страница 28: ...hange is then verified Note Pressing the Hard Default or Factory Default icons will restore factory parameters to your unit and information will be lost if not previously saved Status Display Selectin...

Страница 29: ...e changed You can also view the individual parameters options change them and default them to their factory values For further information on the parameters available in each section and their options...

Страница 30: ...esents the signal strength in mV on the status display this is represented as a percentage 0mV 0 and 1 000mV 100 Example of an echo trace is shown below Raw Echo The Raw echo is shown in red It shows...

Страница 31: ...bility mechanism to filter out any momentary echoes from passing machinery stirrers etc DATEM Digital Adaptive Tracking of Echo Movement The Blue DATEM trace acts as a threshold which defines if echoe...

Страница 32: ...transducers is ACTIVE which means it will grow to cover any fixed obstructions in front of the current measurement echo Looking at the trace below the only echo which can be seen by the echo selectio...

Страница 33: ...To zoom out simply draw a box from the bottom right to top left or select Trace Zoom Full from the menu options Important Information If you are connecting to multiple devices that are to be placed on...

Страница 34: ...w many dBi M Series Intelligent Transducers have been found and the Modbus addresses of the dBi M transducer s You can select the value of the dBi M you wish to communicate with within the Modbus ID v...

Страница 35: ...the view DATEM points box When selected a purple line will appear on the echo trace graph with a number of moveable points The points can be clicked on and dragged in order to manipulate the DATEM li...

Страница 36: ...hed and a regular echo is selected the DATEM line will have changed to wrap around the echoes hidden from the movement of the points To undo the manipulation of the DATEM points select the and the DAT...

Страница 37: ...gress bar displays information such as devices found parameter changes and colour the changes to indicate different actions are being performed Receiving and Sending Information Obtaining an echo for...

Страница 38: ...ress bar will turn turquoise During the playback of the echo trace you are unable to select the option to view a regular echo When recording an echo trace the progress bar will turn red During the rec...

Страница 39: ...ys the Gate when selected if unselected the Gate will be hidden from view on the echo trace graph DATEM Trace This option displays the DATEM line when selected if unselected then DATEM will be hidden...

Страница 40: ...h setting up your application Operation P100 Mode of Operation This parameter sets the mode of operation when in run mode and can be set to one of the following OPTION DESCRIPTION 1 Distance Display s...

Страница 41: ...metres 3 mm All units of measurement are Millimetres 4 feet All units of measurement are Feet 5 inches All units of measurement are Inches P105 Empty Level This parameter is to be set to the maximum d...

Страница 42: ...istance 0 125m 0 66 feet dBi M6 metre Default Blanking Distance 0 3m 0 98 feet dBi M10 metre Default Blanking Distance 0 3m 0 98 feet dBi M15 metre Default Blanking Distance 0 5m 1 64 feet P108 Far Bl...

Страница 43: ...not be changed though if P852 is changed they will be reset P580 Minimum Temperature This parameter displays the minimum temperature recorded P583 Maximum Temperature This parameter displays the maxim...

Страница 44: ...l transducer P852 1 which will automatically detect the temperature from the transducer If for any reason no temperature input is received then the Fixed Temp value is used as set by P854 The temperat...

Страница 45: ...l level several times then adjust the Sound Velocity accordingly to obtain an accurately displayed reading OPTION DESCRIPTION Chlorine 206 m sec Argon 308 m sec Oxygen 316 m sec Air 331 5 m sec Ammoni...

Страница 46: ...vessel empty rate Default 10 000 metres minute 32 81 feet minute Filters P881 Fixed Distance This parameter determines the width of gate to be used in tracking an echo and under normal circumstances w...

Страница 47: ...r of the unit Defaults P930 Factory Defaults This parameter resets all parameter values to the original Factory Set values that were installed when the unit was tested prior to its dispatch to you To...

Страница 48: ...in P951 and P952 or LOE Trace P951 Low Limit This parameter sets the low value in P104 measurement units for the alarm setpoint P952 High Limit This parameter sets the high value in P104 measurement...

Страница 49: ...epeatedly When the dBi M goes into LOE the dBi M will save the trace in its internal memory overwriting the previous trace for the new one Datem P20 Reset Datem This parameter allows the DATEM to be r...

Страница 50: ...height by which the DATEM trace will stand off from the peak of unwanted echoes such as obstructions Please consult Pulsar Measurement for further information and assistance on changing the value of...

Страница 51: ...ired to calculate the volume P604 which will be displayed in the selected Volume Units P605 If your vessel shape does not correspond with any of the programmable vessel shapes then you can use the uni...

Страница 52: ...as shown in the table below along with the dimensions that are required to be entered P601 P603 VESSEL SHAPE P600 VALUE DESCRIPTION DIMENSIONS P600 0 Default Cylindrical Flat Base Cylinder diameter P6...

Страница 53: ...nder diameter P600 6 Cylindrical Sloped Base Cylinder diameter and height of bottom P600 7 Rectangular flat sloped base Width and breadth of rectangular section and height of bottom P600 8 Horizontal...

Страница 54: ...600 VALUE DESCRIPTION DIMENSIONS P600 10 Sphere Sphere diameter P600 11 Universal linear No dimensions required as level and volume breakpoints are used P600 12 Universal curved No dimensions required...

Страница 55: ...of base Cylinder diameter Not required P600 5 Cylindrical half sphere base Cylinder diameter Not required Not required P600 6 Cylindrical flat sloped base Height of base Cylinder diameter Not require...

Страница 56: ...s 6 US Gallons Volume will be totalised in US Gallons 7 Cubic Feet Volume will be totalised in Cubic Feet 8 Barrels Volume will be totalised in Barrels P606 Correction Factor This parameter is used to...

Страница 57: ...the vessel changes shape In the case of the universal curved enter values around each arc tangent as well as at the top and bottom You must enter at least two pairs and you can enter up to 16 pairs U...

Страница 58: ...ber of pairs between 2 and 16 P696 Reset Breakpoints This parameter allows the resetting to the default value of all previously set breakpoints P610 641 without having to access them individually When...

Страница 59: ...e address range limits as 1 to 247 However the dBi M Series will support an address range of 1 to 126 The device address used by the dBi M is set using the parameter shown below PAR NO OPTIONS DESCRIP...

Страница 60: ...ger registers must be read in the same format 4 bytes float little endian In other words for the registers with an integer value you must expect an integer value in float format There are two types of...

Страница 61: ...rameter Read using the FC 3 Function Code Read Holding Registers Write using o FC 6 Cannot be used to write 32 bit registers o FC 16 Write single or multiple 32 bit registers Runtime Registers R0 to R...

Страница 62: ...displayed UNIT DEFINITION U_NO None U_MU Measurement Unit U_PC Percentage U_VU Volumetric Unit V_TP Degree C U_MN Minutes 32BIT REGISTER ADDRESS 2X 16BIT REGISTER ADDRESS DESCRIPTION UNIT 000 2000 200...

Страница 63: ...6 Example You wish to know the current value for Empty Level Search for register address 105 with Function 3 and the information will then be displayed UNIT DEFINITION U_NO None U_MU Measurement Unit...

Страница 64: ...sation 32BIT REGISTER ADDRESS 2X 16BIT REGISTER ADDRESS DESCRIPTION UNIT 851 2228 2229 Measurement Offset U_MU 852 2230 2231 Temperature Source U_NO 854 2232 2233 Fixed Temperature U_TP 860 2234 2235...

Страница 65: ...2278 2279 Alarm Low Limit U_MU 952 2280 2281 Alarm High Limit U_MU 953 2282 2283 Alarm Save Trace U_NO 133 2116 2117 Poll Address U_NO 950 2276 2277 LOE Save Trace U_NO DATEM 32BIT REGISTER ADDRESS 2...

Страница 66: ...2 U_VU 614 2156 2157 Level Breakpoint 3 U_MU 615 2158 2159 Volume Breakpoint 3 U_VU 616 2160 2161 Level Breakpoint 4 U_MU 617 2162 2163 Volume Breakpoint 4 U_VU 618 2164 2165 Level Breakpoint 5 U_MU 6...

Страница 67: ...7 Level Breakpoint 13 U_MU 635 2198 2199 Volume Breakpoint 13 U_VU 636 2200 2201 Level Breakpoint 14 U_MU 637 2202 2203 Volume Breakpoint 14 U_VU 638 2204 2205 Level Breakpoint 15 U_MU 639 2206 2207 V...

Страница 68: ...ucer and is inside limits 45 C to 85 C When it is outside its limits 3 Fail Safe Signal is valid Failed safe condition 4 LOE Signal is valid LOE Fail after P809 has expired 5 LOE High Signal is valid...

Страница 69: ...been polled Press the Regular Echo Off button dBi M does not appear on Modbus list Ensure that the poll address is different to the master and any other slave addresses connected By default the dBi M...

Страница 70: ...se of cable and Transducer in accordance with regional environmental regulations for electrical electronic products Controllers Remove power disconnect the Controller and remove battery if fitted Disp...

Страница 71: ...www pulsarmeasurement com S U P P O R T P U L S A R M E A S U R E M E N T C O M Copyright 2021 Pulsar Measurement Ltd Registered Address 1 Chamberlain Square CS Birmingham B3 3AX Registered No 3345604...

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