Home

USER MANUAL - Mainstream Measurements LTD

1. The Level Flow Fallback option and Velocity Sensors 2 and 3 are disabled Selection of the Area Calculation sensor does not allow changes unless it is PREMIER Fixed AV Flowmeter which has two 4 20 mA inputs that can both be used for level sensors This screen allows for the totalisers to be reset Revision 17 October 2013 Page 42 of 66 Mainstream Communicator V2 02 58A Debug Only Site Data Configuration Pipe Channel Section Level Sensors Level W Enabled Velocity sensors Velocity Probe 1 Enabled Velocity Probe 2 Level 2 E p Velocity Probe 3 l E Area Calculation Level 1 Section Level Flow Fallback Disabled Measurement and Recording Timers Measurement Interval 15s 8 7 2 1 Level Sensor Level Threshold Threshold imm Recording Interval 15 s Not for Release AV Flowmeter Configuration Editor Mainstream F325 Flow Totalisers Refresh Forward Quantity Reset Apply Archive Files Reverse Quantity Reset Total Quantity Reset Detault Configuration Detaults Level 1 corresponds to the level sensor that is included with the Flow Transmitter and the COMPACT Fixed AV Flowmeter If the instrument is only used for velocity measurement or for flow measurement in full pipes Level 1 can be Disabled The instrument does not perform any level measurement and electrical energy absorption is minimised The measurement procedure for the Velocity
2. CAUTION Each switch is protected with 100mA fuse NB 4 20mA outputs maybe configured to any measurand using Mainstream Communicator software Revision 17 October 2013 Page 31 of 66 7 PORTABLE UNIT ELECTRICAL CONNECTIONS The portable instrument has rapid connection fittings with IP 67 protection positioned externally on one side of the system unit s case 7 1 Fittings on the portable unit On the side of the portable unit there are 4 connectors for the Level Sensor Velocity Sensor Auxiliary and Serial respectively Sire LEVEL VELOCITY AUXILIARY SERIAL DATA SENSOR SENSOR CONNECTOR COMMUNICATIONS NB In order to preserve the connectors the dust cap covers should be used when the instrument is not in use 7 2 Portable Unit Power Supply The power supply to the portable unit is provided by a rechargeable battery within the instrument Mainstream uses a deep discharge gel battery 12VDC 7 5 Ah or 12 Ah optional The instrument s internal battery is sealed and removable therefore it can be changed for recharging The battery is connected via crocodile clips red and black respectively Position and fit the crocodile cable clips to the battery as shown in the photo Red to Red VE Postive Black to Black VE Negative Affix the cable clips with adhesive backing to the battery Guide the cable through the cable clips for secure fastening See the illustration below Revision 17 October 2013 Pag
3. The Mainstream Velocity Transmitter uses a submerged ultrasonic sensor to measure the velocity of a liquid flowing in an open channel or closed pipe The measured velocity is output as a 4 20 mA Signal The velocity transmitter is contained in a rugged aluminum housing measuring 220 mm wide x 120 mm high x 80 mm deep The housing seals to IP67 The electronics within the housing are encapsulated to exclude moisture For terminal board connection details refer to Section 6 1 3 3 Flow Transmitter The Mainstream Flow Transmitter uses a submerged ultrasonic sensor to measure the velocity of the liquid flowing in an open channel or part filled pipe and a level sensor to determine the flow cross sectional area The flow rate calculated by multiplying the area by the velocity is output as a 4 20 mA signal The flow transmitter is contained in a rugged aluminum housing measuring 220 mm wide x 120 mm high x 80 mm deep The housing seals to IP67 The electronics within the housing are encapsulated to exclude moisture The Flow Transmitter can be supplied pre configured for the user s application pip channel dimensions and flow output signal scaling Mainstream Communicator provides flow transmitter diagnostics and allows the user to set configuration options For terminal board connection details refer to Section 6 2 3 4 COMPACT Av Flowmeter The Mainstream COMPACT AV Flowmeter uses a submerged ultrasonic sensor to measure the velocity of
4. mainstream MEASUREMENTS LTD WORLD CLASS FLOWMETERS USER MANUAL Velocity Transmitter Flow Transmitter COMPACT Fixed AV Flowmeter PREMIER Fixed AV Flowmeter Portable AV Flowmeter evision 17 October 2013 Page 1 of 66 Warranty Mainstream Measurements Ltd warrants that the Mainstream flowmeters are free from defects in material and workmanship and operate substantially as described in this manual If during the warranty period specified below the Mainstream flowmeter is shown to the reasonable satisfaction of Mainstream Measurements Ltd to be faulty and not to operate substantially as described in this manual Mainstream Measurements Ltd will repair or replace the flowmeter Mainstream Measurements Ltd will not be responsible for any failure of the Mainstream flowmeter caused by incorrect installation or extreme operating conditions and will not in any event be liable for any loss consequential or otherwise caused by any error defect or failure of the Mainstream flowmeter howsoever arising including but not limited to loss of use loss of data loss of profit or loss of contract The warranty period is 12 months from the date of shipment Revision 17 October 2013 Page 2 of 66 This manual is an integral part of the equipment and should be kept with it until the equipment is destroyed Before carrying out any operation on or with the equipment all functional characteristics and instructions outlined tn this manual should be
5. Tank system tests typically better than 2 In various field installations typically better than 5 with Velocity gt 50 mm s and Level gt 50 mm with uniform conditions of motion 220 x 120 x 80 mm I X h x d IP66 standard 20 C to 60 C 3 Kg 24VDC 12 28VDC Maximum current absorption 200 mA12VDC 11 5 13 5VDC with conditioner for battery charger or direct connection to photovoltaic panel Page 65 of 66 DISPLAY COMMUNICATION SOFTWARE INPUTS ANALOGUE OUTPUTS DIGITAL OUTPUTS DATA LOGGER ACCURACY of level conversion ACCURACY of velocity measurement ACCURACY of flow measurement DIMENSIONS PROTECTION OPERATING TEMPERATURE WEIGHT POWER SUPPLY Revision 17 October 2013 10 4 MAINSTREAM PREMIER FIXED AV FLOWMETER Alpha numerical LCD 16 characters on two rows with backlighting sequential display in scientific units programmable for all or part of the instantaneous measurements taken and processed Date and time Backup internal and bottom external battery power voltages Battery load current Liquid head Level Sensor loop current Wet area Velocity Signal quality Flow Total and partial hourly volume unit direct and reverse RS 232 serial port for complete instrument programming and data downloads from data logger Provided with every instrument in English operates in a Windows 98 2000 NT XP Vista Windows 7 environment for complete programming simultaneous instantaneo
6. 50 x 20 mm PROTECTION IP68 10 7 PRESSURE LEVEL SENSOR Model Materials Titanium acetal and polyurethane Dimensions 185 mm long x 17 5 mm diameter 8 mm diameter vented polyurethane cable with Kelvar Cable strain cord 10 metres standard extendable up to 500 metres Weight 1 kg including standard 10 m cable length Level Range 0 2 m working Maximum 8 m overrange Resolution Better than 1 mm Combined effects of non linearity hysterisis and repeatability better than 0 25 best straight line Non linearity and offsets removed by transducer calibration Combined Accuracy Environmental Protection Fully encapsulated to IP68 Revision 17 October 2013 Page 68 of 66 20 C to 60 C temperature compensated 2 C to 30 Operating Temperature C Revision 17 October 2013 Page 69 of 66
7. 9 1 LCD 9 1 1 24V or 12V LCD Operation 9 1 2 Display Sequence 9 2 SWITCHES for Pulse Output and Alert Thresholds 9 3 4 20 mA Analogue output 9 3 1 4 20 mA Output 1 2 3 Configuration 9 3 2 Calibration 10 TECHNICAL SPECIFICATIONS 10 1 VELOCITY TRANSMITTER 10 2 FLOW TRANSMITTER 10 3 MAINSTREAM COMPACT FIXED AV FLOWMETER 10 4 MAINSTREAM PREMIER FIXED AV FLOWMETER 10 5 MAINSTREAM PORTABLE AV FLOWMETER 10 6 VELOCITY SENSOR 10 7 PRESSURE LEVEL SENSOR Revision 17 October 2013 Page 7 of 66 39 39 39 40 40 40 40 41 41 42 42 43 43 44 44 45 47 48 49 49 51 51 53 53 53 55 56 58 58 58 58 59 60 60 61 63 63 63 64 65 66 67 67 1 Your Product 1 1 Delivery Checkout Unpack your Mainstream flowmeter Do not discard any packaging until you have located all the items you ordered Your delivery will normally contain all of the following items System Unit Velocity Sensor this is the ultrasonic sensor that measures the speed of the flowing liquid Level Sensor this is the device that measures the level of the liquid flowing in the pipe or channel It may be supplied fitted to the Velocity Sensor Comms Cable this is the cable that connects the Mainstream system unit to a PC serial port Software CD this contains the Mainstream Communicator UI software and user manual Your delivery may also contain some of the following optional items Portable only Internal Bat
8. Day 0 00 Default CSY File Content Backup Battery Voltage 12 26 Supply Voltage 12V Battery Voltage Battery Charge Current Level Sensor 1 Loop Current Level 1 Apply Archive Files Level Sensor 2 Loop Current Level 2 Flow Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity Auto Start New File is enabled by selecting the arrow for drop down screen Four options are available for selection depending upon operator requirements and preferences Never this option creates a unique file which is not interrupted other than when there is a loss of power or different instrument configuration This option is not normally used When Record Count makes it possible to define the size of the file by the number of logged measurements with a choice of seven options ranging from 1000 to 64000 Every Day generates a new data file daily at a set time this is certainly the simplest solution for searching for data relating to specific days or short periods Every Month generates a new data file on the first day of each month Every data file has a description that contains the main information regarding the data contained i e site and project name measurement date start and end time and file size Select the required parameters and Apply The new
9. V1 N Source N Source N 5 lout SW 1B N 12 28V 7 us v2 7 Sense 7 Sense 7 lout SW 2A 7 ov N US Gnd N Lvi Gnd N Lvi Gnd N O ov sw2B N Revision 17 October 2013 Page 25 of 66 6 5 Power Supply Connections for Mainstream Velocity and Flow Transmitter and the Mainstream COMPACT Fixed AV flowmeter should be made as illustrated in the following diagram according to the requirements of use of the instrument Power Supply 42V OM ___ s 12VDC 24V i o iy 24VDC The terminals marked 12V and 24V are the positive poles relating to the two power supply voltages The OV terminals are the negative poles Connections for the Mainstream PREMIER Fixed AV flowmeter should be made as illustrated in the following diagram according to the requirements of use of the instrument Power Supply A i 12VDC TEON B4YDE ov The terminals marked 12V and 12 28V are the positive poles relating to the two power supply voltages The 12V and 12 28V are two independent power inputs The OV terminals are the negative poles Note these two OV terminals must not be connected together i e not shorted The 12VDC power input in the flowmeter is designed to be connected to a backup battery in the event of power failure This battery is maintained by the 24VDC input In the absence of the 24VDC input the instrument will revert to the battery power supply The maximum current load is 200 mA with the 24VDC power supply The maximu
10. a new measurement is taken approximately every 100 ms Revision 17 October 2013 Page 44 of 66 Operation with different measurement intervals is useful and advisable in cases where it is important to save energy or limit electrical absorption In the case of a battery power supply for example where the instrument is in sleep mode between one measurement and another this minimises the absorption of electrical energy Incrementing the measurement interval limits electrical absorption however a lower response to flow velocity variations is obtained The logging interval is the time period between one measurement and the next stored in the data logger This value can be programmed with the same timescale options as the measurement interval NB Variation in the measurement interval can also involve automatic variation in the logging interval as logging must always be equal to or greater than the measurement interval 8 7 2 4 Flow Totalisers Mainstream flowmeters have independent totalling facilities Forward reverse flow hour quantity Forward reverse flow total quantity Flow hour quantity Flow total quantity Totals can be reset using the Reset buttons which are distinct and independent for totals relating to Forward Reverse and Total quantity Use of the reset opens a pop up window requesting confirmation of action Mainstream Communicator 7 02 40 AV Flowmeter Configuration Editor ed Site Data Configuration Pipe Chann
11. and has a 12VDC backup battery In this case it can be configured to be Always On for Operation at 24VDC and Manual for Operation at 12VDC In the event of a power cut the display automatically changes mode reduces energy consumption and ensures greater battery lifetime This does not change the measurement or data logging procedures With the 24VDC supply it is also possible to enable disable the display back light 9 1 2 Display Sequence Measurements taken and processed can be displayed in full sequentially or partially as preferred Displaying the header bar Display Sequence highlights checked or unchecked boxes to the right of each description Selecting the tick box alongside the descriptions enables or disables the display of parameters If a parameter is checked it will be displayed if unchecked it will not be displayed Parameters can be customised and displayed sequentially during instrument operation Selecting the header bar Display Sequence again results in the symbols disappearing and only the checked measurements remain active Mainstream Communicator 2 02 40 LCD Configuration Editor LCD Switches 4 20 mA Mainstream F4802 24 LCD Operation 12V LCD Operation Backlight Always ON Enabled Manual W Backup Battery voltage Archive Files 12 28 Supply Voltage 12V Battery Voltage Battery Charge Current Level Sensor 1 Loop Current Level 1 Level Sensor 2 Loop Current Level 2 Flow Cro
12. button is enabled Click the Connection button to open the Connection Form Under the Local tab are Comm Port and Baud Rate drop down list boxes The Comm Port list contains all the available RS232 ports on your PC including ports implemented by USB Serial Converters Select the port that your Comms Cable is using from the drop down list The connection process is then automatic The Comms Diagnostics list box shows a summary of the activity If communication is not established within a few seconds it may be that you have selected the wrong RS232 port Use the Comm Port drop down list box to change your selection When communication between the PC and the Mainstream system unit is established all buttons on the UI button bar are enabled Revision 17 October 2013 Page 9 of 66 2 OVERVIEW 2 1 Applications The Mainstream flowmeter is designed to measure the flow of liquids in open channels and part filled pipes Applications include sewer and effluent flow monitoring river and stream flow measurement waste water treatment industrial flow metering and irrigation systems The Mainstream flowmeter uses Mainstream Communicator software which supplies functions to configure the Mainstream flowmeter according to the requirements of the measurement application to test the flowmeter and associated equipment to extract diagnostic information from the flowmeter to view flow measurement data in real time and to retrieve recorded data The Mainstr
13. measurement DIMENSIONS PROTECTION OPERATING TEMPERATURE WEIGHT Revision 17 October 2013 10 5 MAINSTREAM PORTABLE AV FLOWMETER Alpha numerical LCD 16 characters on two rows with backlighting sequential display in scientific units programmable for all or part of the instantaneous measurements taken and processed Date and time Backup internal and bottom external battery power voltages Battery load current Liquid head Wet area Velocity Signal quality Flow Total and partial hourly volume unit direct and reverse RS 232 serial port for complete instrument programming and data downloads from data logger Provided with every instrument in English operates ina Windows 98 2000 NT XP Vista Windows 7 environment for complete programming simultaneous instantaneous display of all measurements taken in addition to data downloads 1 x Immersed velocity sensor 1 x Piezoresistive immersion Level Sensor 2 relay switches with 60V AC DC capacity at 200 mA independently programmable for alerts on any measurement taken repetition of totals or sampler control 4 MB on Flash memory with data retention for 20 years Programmable acquisition at intervals configurable as continuous or from 2 5 seconds to 60 minutes for logging all or part of the instantaneous measurements taken and processed Run time greater than 12 months with logging of all measurements and acquisition interval equivalent to 1 minute Better than 0 05 of end
14. mounting point at the rear of the Velocity Sensor This combines the pressure transmitter and Velocity Sensor into an easy to install level velocity sensor Mainstream flowmeters can also be supplied with Level Sensors based on other technologies such as through air ultrasonics through liquid ultrasonics or bubblers 2 3 3 Mainstream Communicator The Mainstream fixed installation system unit has a serial port connector located adjacent to the cable glands This serial port links the Mainstream to a local PC using the communications cable supplied with the flowmeter Each Mainstream portable flowmeter is supplied with a Mainstream Communicator software package that operates on PC platforms This software is an integral part of the Mainstream product and enables the user to exploit all the features of the Mainstream flowmeter Where functionality is not available with the equipment purchased then the relevant options are automatically disabled Mainstream Communicator provides functions for flow measurement system configuration pipe channel cross section definition calibration of Level Sensors flow measurement diagnostics configuration and testing of the flowmeter outputs display of flow measurement data in real time and retrieval of data from the Mainstream logger 2 4 Operating Principle Mainstream uses the area velocity method to measure the liquid flow rate A submerged pressure transmitter or ultrasonic sensor determines the li
15. read and fully understood It is advisable to follow all instructions carefully as good operation and duration of the equipment over time depend primarily on correct installation suitable electrical connections and correct programming for the actual operating conditions required Keep this manual in good condition and where it can be easily accessed by operators Revision 17 October 2013 Page 3 of 66 WARNING FOR ALL MAINSTREAM ATEX CERTIFIED PRODUCTS ATEX INSTRUCTIONS EHSR 1 0 6 FOR USE WITH MAINSTREAM VELOCITY SENSORS The following instructions shall accompany each product These instructions may be contained in a discrete section within an operation manual or similar document Instructions specific to hazardous area installations reference European ATEX Directive 94 9 EC Annex II 1 0 6 The following instructions apply to the Mainstream Velocity Sensors covered by certificate number Sira OSATEX2159X The wording and format may be altered provided the meaning remains unchanged 1 The equipment may be used with flammable gases and vapours with apparatus Gas Groups IIA IIB and IIC in Zone O 1 or 2 locations 2 The equipment Temperature Class is T5 certified for use in ambient temperatures in the range 20 C to 40 C or Temperature Class T4 certified for use in ambient temperatures in the range 20 C to 80 C and should not be used outside this range 3 Installation shall be carried out in accordance with the app
16. safe NOTICE This Mainstream product may contain resources that are not supported by your version of the Mainstream Communicator software For software updates go to www mainstream measurements com Printer Setup Print Mainstream Communicator 2 07 40 Product Measurands Product Measurands PSU Comms Logger Outputs Status SS Mainstream F4ole Backup Battery Voltage 12 280 Supply Voltage 12V Battery Valtage Refresh Battery Charge Current Hi Level Sensor 1 Loop Current jLevel Level Sensor 2 Loop Current Lewel 2 Flow Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity 8 7 APPLICATION Site Data Configuration Pipe Channel Section The Mainstream flowmeter is versatile and can be configured to suit a wide range of applications The configuration process entails loading all the information relating to the specific application into the Mainstream memory All configuration details are memorised in Mainstream in non volatile memory areas so that a loss of power cannot alter or change the programming in any way Normal operation resumes automatically when power is restored to the instrument Revision 17 October 2013 Page 41 of 66 8 7 1 Site Data On this screen there are distinct information fields th
17. scale Better than 2 in good water conditions Tank system tests typically better than 2 In various field installations typically better than 5 with Velocity gt 50 mm s and Level gt 50 mm with uniform conditions of motion 285 x 250 x 120 mm I x h x d IP67 standard 20 C TO 60 C 5 kg including standard 7 5 Ah battery Page 67 of 66 Power inputs Internal 12 V battery Connections for external 12V amp 24V supplies Internal battery Exchangeable deep discharge 12V 7 5 Ah rechargeable battery Battery charger Built in battery charger maintains internal battery using power from external 24V source POWER SUPPLY External 12V supply Connection for external 12V battery pack for extended measurement period External 24V supply Connection for external 15 28V power input compatible with solar panels amp industrial 24V supplies Power supply monitor Power monitoring circuits track supply status Supply voltages can be displayed on LCD viewed via the UI stored in the data logger and used to control switch outputs Power supply condition visible on status LED 10 6 VELOCITY SENSOR Bi directional from 10 mm s to 5 m s with 1mm s Field of measurement resolution Operating temperature Maximum working temperature is 85 C No specific calibration sensor fully interchangeable Calibration No offset value No zero deviation Cable length 10 metres standard extendable up to 500 metres DIMENSIONS 105 x
18. that meet the specific requirements LZGLdA ON IEUS 3q01d VIOJ A nese HR s Npold Josues H Revision 17 October 2013 Page 21 of 66 To install the sensor in channels or pipes where it is not possible to stop flow a support bracket can be used for the velocity sensor The sensor is anchored to a square tube which will ensure the correct positioning of the sensor with respect to the flow and which can be easily removed for maintenance purposes 5 2 2 Equipment for installing the sensor in circular pipe sections To install the velocity sensor in circular pipe sections suitable ring supports in stainless steel can be used complete with an upper expander which allows the ring to be expanded against the internal walls of the pipe The lower base of the ring has the sensor anchoring holes and the cable should be fastened with cable ties along the ring perimeter which exit from the upper part of the pipe to avoid the creation of any obstructions to flow It is advisable to cover the semi section of the ring where the cable passes with high strength adhesive tape to protect the cable better and increase the hydrodynamics of the support The upper expander makes it possible to reduce the ring diameter for easy insertion into the pipe Subsequently opening it provides a high level of strength combined with increased grip against the internal pipe surfaces This makes it possible to keep the sensor in the correct position with as l
19. the Mainstream calendar and clock to the PC values This facility makes it possible to update multiple Mainstream units at the same time using the PC as a synchronous stopwatch NB Updating the clock interacts with the data logger to create a new data file CAUTION If fully charged a backup battery in the instrument makes it possible to keep the clock up to date for at least 48 hours in the event of a power failure If the instrument is without power for longer periods it may be necessary to synchronise the clock again NB To fully charge the backup battery Mainstream must be powered continuously at 24V or 12V for at least 24 hours Mainstream Communicator V2 02 40 Data Logger Configuration Editor Configuration Date Time File Manager Memory Control File Size Control File Content Control Recording Mode Auto Start New File Start Time Logger File Content Delete Old File Every Day 0 00 All Measurands Default CS V File Content Backup Battery Voltage 12 28 Supply Voltage Archive Files 12V Battery Voltage Battery Charge Current Level Sensor 1 Loop Current Level 1 Level Sensor 2 Loop Current Level 2 Flow Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity Mainstream F4802 Revision 17 October 2013 Page 56 of 66 Mainstream Commun
20. the liquid flowing in an open channel or part filled pipe and a level sensor to determine the flow cross sectional area The flow rate calculated by multiplying the area by the velocity is output as a 4 20 mA signal Revision 17 October 2013 Page 16 of 66 The AV Flowmeter is contained in a rugged aluminium housing measuring 220 mm wide x 120 mm high x 80 mm deep The housing seals to IP67 The electronics within the housing are encapsulated to exclude moisture The AV Flowmeter can be supplied pre configured for the user s application pipe channel dimensions and flow output signal scaling Mainstream Communicator provides flow transmitter diagnostics and allows the user to set configuration options For terminal board connection details refer to Section 6 3 3 5 PREMIER AV Flowmeter The Mainstream COMPACT AV Flowmeter uses a submerged ultrasonic sensor to measure the velocity of the liquid flowing in an open channel or part filled pipe and a level sensor to determine the flow cross sectional area The flow rate calculated by multiplying the area by the velocity is output as a 4 20 mA signal The AV Flowmeter is contained in a rugged aluminium housing measuring 260 mm wide x 160 mm high x 90 mm deep The housing seals to IP67 The electronics within the housing are encapsulated to exclude moisture The AV Flowmeter can be supplied pre configured for the user s application pipe channel dimensions and flow output signal scaling Mains
21. ultrasound and process the ultrasonic signals The Mainstream velocity sensor is connected to the system unit via a reinforced cable that supplies electrical power to the velocity sensor and carries data back to the system unit The standard length of velocity sensor cable is 10 metres Sensors can be supplied with longer cable lengths up to a maximum of 500 metres Increasing the length of the velocity sensor cable does not degrade flow measurement performance For ATEX approved velocity sensors the maximum cable length is 300 metres 5 1 Dimensions and fixing template Below are the dimensions of the velocity sensor in addition to centre distances for the M3 threaded inserts for fixing the sensor to the support used for installation The M3 fixing screws for the sensor should of a length not greater than 4 5 mm the thickness of the support plate used Py 5 2 Installation The velocity sensor is designed to operate immersed in liquid therefore it is usually installed at the bottom of the channel or pipe where the measurement is to be taken To this effect there are Supports and accessories available depending on the installation required i e for circular pipe sections semi circular pipe sections and rectangular or trapezoidal channel sections 5 2 1 Equipment for installing the sensor To install the sensor in a flat bottomed rectangular or trapezoidal channel support plates are fixed to the bottom of the channel using bolts or brackets
22. value only is provided for particular applications where the measurement of only one parameter is required or where the flow rate is determined on the basis of the variation in velocity only In Velocity Only mode Mainstream operates as a velocity gauge and recorder and is suitable for applications such as the monitoring of completely full pipe sections or the study of sewage retention times in sewer systems NB will result in a flow value of O zero Revision 17 October 2013 Page 43 of 66 During normal use as an Area Velocity flowmeter Level 1 should be Enabled otherwise this Mainstream Communicator V2 02 56A Debug Only Not for Release AV Flowmeter Configuration Editor Eg Site Data Configuration Pipe Channel Section and P3595 ainstrearm Level Sensors Velocity sensors Flow Totalisers Retresh Level 1 Velocity Probe 1 Forward Quantity W Enabled W Enabled Reset Apply Velocity Probe 2 Level 2 x Archive Files Velocity Probe 3 Reverse Quantity z Area Calculation Reset Level 7 Section Level Threshold W Enabled Total Quantity LevelFlow Fallback Threshold mm Disabled 2g Reset Printer Measurement and Recording Timers Detault Configuration setup Measurement Interval Recording Interval E AS 16s Level Threshold can be disabled If the Level Threshold is enabled for example level threshold is set at 20mm this sets the table so that the flow is always zero Thus when the lev
23. when velocity variations are expected in the water flow In this case all the information used to determine flow velocity is acquired in a brief period before the reading interval is selected After processing the measurement the system unit goes into sleep mode until the next measurement When this function is Enabled the information used to determine flow velocity is acquired without any interruption during the reading interval and in this case the velocity histogram represents the velocity average over the entire interval period between one reading and the next Measurement time for high flow velocities or high signal quality is reduced whereas measurement time for low velocities or low signal quality is increased This intelligent use of power ensures consistent measurement performance over all flow conditions and delivers increased battery life Defaults reset all values relating to normal manufacturer settings which are generally suited to most applications 8 9 MEASUREMENTS There are two screens in the Measurements section Display and Units They are dedicated to the instantaneous display of all measurements taken and processed by the instrument in addition to the desired scientific units and the relevant number of decimals 8 9 1 Display The Display screen displays all the measurements taken and processed by the instrument simultaneously in real time Depending upon the characteristics of the instrument in use the parameters out
24. A proportionally configurable to velocity and one of the various power supply parameters Better than 2 in good water conditions 220 x 120 x 80 mm I x h x d IP66 standard 20 C to 60 C 2 kg 24VDC 12 28VDC Maximum current absorption 200mA RS 232 serial port for complete instrument programming Provided with every instrument in English operates ina Windows 98 2000 NT XP Vista Windows 7 environment for complete programming simultaneous instantaneous display of all measurements taken 1 x Immersed velocity sensor 1 x 4 20 Level Sensor active or passive 1 x 4 20 mA proportionally configurable to flow and one of the various parameters measured Better than 0 05 of end scale Better than 2 in good water conditions Tank system tests typically better than 2 In various field installations typically better than 5 with Velocity gt 50 mm s and Level gt 50 mm with uniform conditions of motion 220 x 120 x 80 mm I X h x d IP66 standard 20 C to 60 C 2 kg 24VDC 12 28VDC Maximum current absorption 200mA Page 64 of 66 10 3 MAINSTREAM COMPACT FIXED AV FLOWMETER DISPLAY COMMUNICATION SOFTWARE INPUTS ANALOGUE OUTPUT DIGITAL OUTPUTS DATA LOGGER ACCURACY of level conversion ACCURACY of velocity measurement ACCURACY of flow measurement DIMENSIONS PROTECTION OPERATING TEMPERATURE WEIGHT POWER SUPPLY Revision 17 October 2013 Alpha numerical LCD 16 character
25. COMPACT AV Flowmeter amp Transmitters 29 6 8 2 Passive 4 20mA Output Connection for PREMIER AV Flowmeter 29 6 8 3 Active 4 20mA Output Connection for COMPACT AV Flowmeter amp Transmitters 30 6 8 4 Active 4 20mA Output Connection for PREMIER AV Flowmeter 30 6 9 Connecting Switch Outputs for COMPACT and PREMIER AV Flowmeters 31 7 PORTABLE UNIT ELECTRICAL CONNECTIONS 32 7 1 Fittings on the portable unit 32 7 2 Portable Unit Power Supply 32 8 CONFIGURATION SOFTWARE 34 8 1 Mainstream Communicator Ul Overview 34 8 2 Mainstream Communicator Ul Setting the Time 35 8 3 Mainstream Communicator Software Installation 35 8 4 Mainstream Software Connection 36 8 5 System Functions 39 8 5 1 Refresh 39 8 5 2 Apply 39 8 5 3 Load 39 8 5 4 Printer Setup 39 8 5 5 Print 39 8 6 SYSTEM UNIT 39 Revision 17 October 2013 Page 6 of 66 8 8 8 6 1 Product 8 6 2 Measurands 8 6 3 PSU 8 6 4 Comms 8 6 5 Logger 8 6 6 Outputs 8 6 7 Status 8 7 1 8 7 2 8 7 2 NI m Ni e NI N m NI 334 8 8 2 1 B W IN e N O 8 7 APPLICATION Site Data Configuration Level Sensor Velocity Sensors Measurement and Recording Timers Flow Totalisers Pipe Channel Section Silt Level and Area Correction SENSORS Level Velocity 8 8 2 1 Configuration 9 MEASUREMENTS 8 9 1 Display 8 9 2 Units of Measurement 8 1 DATA LOGGER 8 10 1 Configuration 8 10 2 Date Time 8 10 3 File Manager 9 OUTPUTS
26. ORS Level Velocity 4 MEASUREMENTS Display Unit 5 DATA LOGGER Configuration Date Time File Manager 6 OUTPUTS LCD Revision 17 October 2013 Page 38 of 66 Switches 4 20mA Depending upon the instrument in use not all software options are active and available The software automatically recognises the hardware performance of the connected system unit at the first connection and as a result activates those options that can be configured and used Mainstream Communicator V2 02 40 Connection System Unit Application Mainstream Communicator V2 02 40 Local Connection Configuration R5232 Mainstream Communicator V2 02 40 Product Information Product Me Conne Flow Cross Ultrasound Flow Yeloci Flow Rate Flow Total Formato 1280 x 55 Tipo Immagine JPEG Dimensione 23 6 KB 8 5 System Functions e 24VLCD Operation Sensors Measurements Data Logger Outputs Mainstream Communicator V2 02 40 Site Data Editor LCD Switches 4 20 mA Backlight AlwaysON v Enabled Backup Battery Voltage J 12 28 Supply Voltage 12V Battery Voltage J Battery Charge Current Level Sensor 1 Loop Current Level 1 d Level Sensor 2 Loop Current Level 2 Flow Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Flow Total C Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantit
27. ain the correct reference point for the 4 mA value Change the 20 mA DAC code to obtain the correct reference point for the 20 mA value Check the scale using the Current Test mA function and the relevant arrows that enable an increase or decrease in the current value Do this in steps of 0 5 mA to check that the output values are correct over the entire scale The value read should be equivalent to that set 0 02 mA as accuracy is typically 0 1 Remove the milliammeter and restore the original connections Page 62 of 66 Mainstream Communicator V 02 40 4 70 mA Output Calibration Test ms Revision 17 October 2013 Page 63 of 66 10 TECHNICAL SPECIFICATIONS 10 1 VELOCITY TRANSMITTER COMMUNICATION SOFTWARE INPUTS ANALOGUE OUTPUT ACCURACY of velocity measurement DIMENSIONS PROTECTION OPERATING TEMPERATURE WEIGHT POWER SUPPLY 10 2 FLOW TRANSMITTER COMMUNICATION SOFTWARE INPUTS ANALOGUE OUTPUT ACCURACY of level conversion ACCURACY of velocity measurement ACCURACY of flow measurement DIMENSIONS PROTECTION OPERATING TEMPERATURE WEIGHT POWER SUPPLY Revision 17 October 2013 RS 232 serial port for complete instrument programming Provided with every instrument in English operates ina Windows 98 2000 NT XP VISTA Windows 7 environment for complete programming simultaneous instantaneous display of all measurements taken 1 x Immersed velocity sensor 1 x 4 20 m
28. and increased energy consumption By reducing the default value the response to flow variations is quicker and less energy is consumed but measurement reproducibility is reduced Bi directional Velocity can be Enabled or Disabled without distinction It is Enabled under normal conditions of use By disabling the bi directional velocity measurement the measurement will always have a positive value regardless of the actual direction of flow Direction Reversal can be useful for avoiding changes to electrical connections if the velocity sensor is fitted in flow Measuring velocity with the sensor in the same direction as water flow will produce a negative default measurement Enabling the reverse direction reverses the positive and negative direction measured It is Disabled under normal conditions of use Histogram Average can be Enabled or Disabled without distinction It is Disabled under normal conditions of use If the histogram average is Disabled every reading is processed independently and corresponds to the measurement taken in the interval which has passed since the previous measurement When the histogram average is Enabled some information relating to previous measurements is used to process the new one Smart Power Saving can be Enabled or Disabled without distinction It is Disabled under normal conditions of use Enabling this option can be useful when the instrument is powered by a battery takes measurements over long intervals or
29. asured Sensors this form handles the detailed configuration of the level sensor and Velocity Sensor that are used to make the flow measurement It also provides facilities for calibrating the level sensor and diagnostics for the Velocity Sensor Measurements this form displays measurements made Select the measurement units and number format used to display the measurements Revision 17 October 2013 Page 34 of 66 Data Logger this form handles configuration of the data logger and management of the files of logged data stored in the Mainstream system unit Logger configuration functions specify the measurement items to be recorded in the data logger the default content of retrieved data files file size control mechanisms and the action when the data logger memory becomes full Data logger file manager functions permit the selective retrieval synchronisation and destruction of data files stored in the Mainstream The Data Logger also allows you to set the Mainstream real time clock Outputs this form has controls to set the LCD display sequence and to configure how the two switch outputs respond It also allows for configuration of the 4 20 mA outputs Clicking the Refresh button reads information from the Mainstream system unit and displays the information on the form The previous contents of the form are lost Clicking the Apply button transfers the information on the form to the Mainstream system unit The information previously i
30. at allow for the identification of the specific installation The information inserted into the Site Data page is reported as a filename on all the files downloaded providing precise identification of the measurements logged Please note that the Project Name and Site Name are details that when downloading data determine the automatic creation of subfolders in the path C Mainstream Data with the same name as the Project Name and Site Name where the CSV files will then be stored Mainstream Communicator V2 02 40 Site Data Editor Eg Mainstream F4aie Froject Name eles Te st Project Site Mare Te st Site Site Reference Site Reference Site Location Site Location Site Contact Co ntact Application Comments Comments Apply Archive Files EXAMPLE if the Site Data page is compiled as above Mainstream Communicator creates the following C folders when data is downloaded Mainstream Data Project Name Site Name Data files will be saved in the last folder HINT Whilst the completion of the various fields is not compulsory it can be useful to store relevant notes in the instrument relating to the specific installation configuration or calibration and details on how when and by whom the instrument was configured 8 7 2 Configuration This screen provides options for enabling or disabling individual sensors which as a result determine the instrument s operating mode
31. collects data from the system unit for processing It is at this point that the relevant Mainstream Communicator menus are active This allows instrument configuration setup Revision 17 October 2013 Page 37 of 66 Mainstream Communicator 2 02 40 Local Connection Configuration Comms Diagnostics 12 18 29 Port COM1 Selected 12 18 29 Opening COM1 12 16 29 COM1 Opened OK 12 18 29 Initialising Link Comm Port 1 32 12 16 29 Testing Connection 12 16 30 MS Bad Response 12 16 30 Testing Connection 12 18 30 Completed OK 12 16 30 Reading System Info 12 18 30 Completed OK 12 18 30 Mainstream F4602 12 18 30 Reading File Info Baud Rate 12 18 31 Completed OK 115200 12 18 31 Reading Captions 12 16 31 Completed OK 12 18 31 Reading Measurements 12 16 31 Completed OK 12 18 31 Reading Units Formats 12 18 31 Completed OK Disconnect Connection Configuration vV Enabled Clear Save CAUTION After programming checking or downloading data it is advisable to disconnect to avoid possible damage to the PC serial port or the Mainstream unit To do this select the Disconnect option on the Connection screen There are 6 options available from the main menu when the connection is active If a menu is selected using the appropriate button an independent interface window opens 1 SYSTEM UNIT Product Measurands PSU Comms Logger Outputs Status 2 APPLICATION Site Data Configuration Pipe Channel Section 3 SENS
32. ctive i e the downloaded information remains in the Mainstream memory and can be downloaded several times The data Delete function allows for files that have been used and are no longer required in the data logger to be deleted To remove the data select the file to be deleted with the mouse and select the Delete function A security window requests confirmation of the operation and once the operation is confirmed the data is permanently deleted By selecting Yes to confirm the selected files will be removed from the File Manager list CAUTION Once Delete has been selected all deleted files are permanently destroyed and can no longer be retrieved Revision 17 October 2013 Page 58 of 66 9 OUTPUTS There are three screens in the Outputs section LCD Switches and 4 20 mA for the configuration of the parameters to be displayed sequentially on the instrument display the configuration of the 2 switch outputs the configuration of the 4 20 mA outputs respectively 9 1 LCD 9 1 1 24V or 12V LCD Operation Mainstream AV Flowmeters have an alpha numerical liquid crystal display that can be configured to be on continually or off preferred option or turned on manually when required To do this use the LCD button on the front panel of the instrument This option is programmable dependent upon the instrument s power supply Display operation differentiation can be useful when the instrument is normally powered at 24VDC from the grid
33. e 32 of 66 4 w SE E a oe ae e N g There are 2 types of battery charger available for use with the portable a power supply which can be connected to the Auxiliary Connector this will charge the 12V via circuitry within the Mainstream maximum 50mA aremote charger where the battery is removed and charged independently of the unit Using the Auxiliary Connector fitting it is possible to connect a 24VDC or 12VDC external fixed power supply Revision 17 October 2013 Page 33 of 66 8 CONFIGURATION SOFTWARE Mainstream Communicator runs on PC platforms under 2000 XP Vista and Windows 7 Communication between the PC and the Mainstream flowmeter is via a serial data link A data cable which connects the Mainstream serial port to the PC serial port is supplied with each Mainstream flowmeter The Mainstream Communicator software supplies functions to configure the Mainstream flowmeter according to the requirements of the measurement application to test the flowmeter and associated equipment to extract diagnostic information for the flowmeter to view flow measurement data in real time and to retrieve recorded data The Velocity Transmitter is pre configured by the manufacturer The Flow Transmitter is pre configured and calibrated by the manufacturer The software is provided on CD together with the Mainstream User Manual It comprises a single executable file Mainstream Communicator Vx 00 00 exe NB The exec
34. e Level Sensor The default values refer to pressure transmitters in the PTX 1730 series Level offset is a value defined by the user and is added to the level measured by the sensor This allows for compensation for an installation imperfection For example it may be necessary to install the sensor at a higher or lower level with respect to effective zero of the pipe or channel This level can be integrated into the software and defined the Level Offset The offset value can be positive or negative Mainstream detects the level measured by the Level Sensor adding or subtracting the programmed offset value to obtain the actual liquid head A positive offset value can be used if the base of the structure is not suitable for the correct or reliable installation of the level sensor For example it should therefore be positioned at a higher level or the assembly structure requires an offset value to be used A negative offset value can be used when the sensor is positioned lower than the effective detection point for example when dealing with a weir crest Defaults resets the Warm up and Offset values relating to normal manufacturer s settings which are generally suited to most applications NB The Defaults button reports the value for warm up time at standard values suitable for standard piezoresistive transmitters Revision 17 October 2013 Page 49 of 66 Calibration displays a table of calibration data which links the data from the level
35. e coherence technology patented processing system which makes it possible to produce an average velocity histogram determine the relative flow direction and most of all formulate a highly reliable and reiterative measurement The quality of the signal represents the percentage of ultrasonic signals that contain verified velocity information A high level of signal quality confirms the validity of the measurement The velocity histogram highlights the quantity of ultrasonic signals relative to the different velocities present in the flow A typical histogram for a positive velocity value greater than 1 m sec is shown below Histogram__ gt tg ______ Average value of peak histogram 4 l 3 2 1 0 1 2 3 Flow Velocity m s The direction and velocity of the flow are determined by the velocity histogram The Average Value is formulated from the histogram and represents the measurement of the weighted average of all the velocities measured in the sensor inspection area 2 4 2 Measurement of the Liquid Head Apart from the system adopted to measure the liquid head Mainstream measures the value of the current mA transmitted by the Level Sensor converting it into a level measurement using a calibration table The level calibration details are memorised in a tabular form for a maximum of 25 points where there is a direct relationship between the current loop transmitted by the level logger and the liquid head present Automatic i
36. eam flowmeter can be configured for use in circular rectangular and oval pipes semi circular rectangular trapezoidal triangular channels complete and or mixed sections Immediate installation of the sensor is possible under any existing conditions and a high level of measurement precision and reliability is guaranteed completely eliminating costs for modelling the section to be measured o amp BI g CIRCULAR SEMI CIRCULAR U CHANNEL RECTANGULAR TRAPEZOIDAL RECTANGULAR MIXED OVAL CHANNEL WITH SECTION SEMI CIRCULAR PIPE PIPE SECTION Revision 17 October 2013 Page 10 of 66 2 2 Mainstream Products Mainstream is now produced in 5 main versions with varying functionality ranging from the velocity transmitter to the Premier Fixed AV Flowmeter November 2011 will see the launch of the multi sensor flowmeter launch November 2011 to measure liquids in open channels and part filled pipes 6 Mainstream CE estes www mainstream measurements com COMPACT FIXED AV FLOWMETER PREMIER FIXED AV FLOWMETER PORTABLE AV FLOWMETER All of the instruments intended for fixed installation have a system unit housed in an aluminium enclosure with IP66 protection The system unit contains power supply conditioning circuits Level Sensor and velocity sensor control and interface circuits a flow computer LCD data logger two opto isolated switch outputs and a serial communications interface The portable instrumen
37. el Section are einste Level Sensors Velocity Sensors Flow Totalisers Refresh Level 1 Forward Quan 7 Enabled Velocity Probe 1 ity 7 Enabled Reset Apply Level 2 Disabled Archive Files Velocity Probe 2 Reverse Quantity Area Calculation je Reset Load Level 1 Section Level Flow Fallback Velocity Probe 3 Total Quantity ja Reset Caution Printer Measurement and Recording Timers Default Configuration a p Clear Total Quantity Please Confirm Setup Measurement Interval Recording Interval 2 f2 Defaults e nun nd 2 min Print tabi A Cancel 8 7 2 5 Pipe Channel Section The geometry and dimensions of the pipe or channel are entered using the Mainstream Communicator software supplied with the flowmeter The simplest input procedure involves selecting a standard pipe or channel cross section and filling in table of the relevant dimensions For non standard pipes or channels the cross section may be defined explicitly as a level to area conversion table Data for the conversion table may be entered directly by the user or read from CSV spreadsheet created by the user Alternatively the cross section data can be input as a drawing of the pipe or channel using the Mainstream Communicator drawing tool Revision 17 October 2013 Page 45 of 66 Regardless of the method of data entry the raw data is stored in non volatile memory in the Mainstream system unit and the cross section definition is automat
38. el is above the threshold value Mainstream operates normally When the level is below the threshold value the flow is zero 8 7 2 2 Velocity Sensors Velocity Sensor 1 corresponds to the sensor generally provided with all instruments If the instrument is only used for level measurement Velocity Sensor 1 can be Disabled The instrument will not perform any velocity measurement and electrical energy absorption is minimised The measurement procedure for just the Velocity value is provided for particular applications where the measurement of only one parameter is required In Level Only mode Mainstream operates as a level gauge and recorder for use in applications such as river monitoring NB During normal use as an Area Velocity flowmeter Velocity Sensor 1 should be Enabled otherwise this will result in a flow value of O zero 8 7 2 3 Measurement and Recording Timers The measurement interval is the time period between one measurement and the next This value can be programmed continuously or at intervals of 2 5 5 10 15 20 30 seconds or 1 2 3 5 6 10 12 15 20 30 minutes and 1 hour Where the power supply comes from the grid most Mainstream fixed AV flowmeter installations measurement interval is generally set at 2 minutes An ongoing measurement interval continuous means that measurements are taken without an interval i e when a measurement has been processed the next one starts immediately Typically this means that
39. ement of the Liquid Head 2 4 3 Flow Rate and Quantity Calculation 2 5 Displaying re transmitting and logging measurements SYSTEM UNIT FAMILIARISATION 3 1 Portable AV Flowmeter 3 2 Velocity Transmitter 3 3 Flow Transmitter 3 4 COMPACT Av Flowmeter 3 5 PREMIER AV Flowmeter INSTALLATION OF THE SYSTEM UNIT 4 1 VI QT amp COMPACT Fixed AV Flowmeter Unit Dimensions 4 1 1 Access to fixing holes for COMPACT and PREMIER Fixed AV Flowmeter 4 2 PREMIER Fixed AV Flowmeter unit dimensions 4 3 Portable AV Flowmeter unit dimensions 5 INSTALLATION OF THE VELOCITY SENSOR Revision 17 October 2013 Page 5 of 66 10 10 11 12 12 12 12 13 13 13 13 14 14 15 16 16 16 16 16 17 18 18 18 19 20 21 5 1 Dimensions and fixing template 21 5 2 Installation 21 5 2 1 Equipment for installing the sensor 21 52 2 Equipment for installing the sensor in circular pipe sections 22 6 FIXED INSTALLATION ELECTRICAL CONNECTIONS 24 6 1 Mainstream Velocity Transmitter 24 6 2 Mainstream Flow Transmitter 24 6 3 Mainstream COMPACT Fixed AV Flowmeter 25 6 4 Mainstream PREMIER Fixed AV Flowmeter 25 6 5 Power Supply 26 6 6 VELOCITY SENSOR 26 6 6 1 Velocity Sensor Power Supply 27 6 6 2 Velocity Sensor Measurement Signals 27 6 7 Level Sensor 27 6 7 1 Connecting to a Passive Level Sensor 28 6 7 2 Connecting to an Active Level Sensor 28 6 8 Connecting the 4 20 mA Outputs 28 6 8 1 Passive 4 20mA Output Connection for
40. erence points of the entered level and acquired corresponding loop current Using the Remove button it is possible to remove individual calibration values that might be obsolete or incorrect It is always appropriate regardless of the Level Sensor used for there to be at least two points corresponding to zero in the calibration table and one point at 20 mA After completing a significant number of calibration points the new calibration table can only be transferred to Mainstream and become operational by selecting Apply NB The number of calibration points entered must not exceed 23 8 8 2 Velocity In the Velocity sub menu there are 4 screens to enable the setting of a series of advanced parameters relating to the velocity measurement the programming of velocity and flow rate measurement correction coefficients These can be useful for solving measurement issues in extreme hydraulic conditions Also available are the display of transmitted and received ultrasound signals and the velocity histogram generated in order to understand the existing measurements and water conditions 8 8 2 1 Configuration In most applications the default values already configured by the manufacturer are suitable for correct velocity measurement The change in the various parameters described below is generally reserved for expert personnel who are qualified to interpret particular water conditions and consequently adapt measurement configuration to the e
41. esent With a PC connected to the meter via a serial port and the Mainstream Communicator software all the measurements taken simultaneously with real time updates can be displayed on a single screen All measurements taken can be logged on the incorporated data logger and the logged details can be downloaded again using the Mainstream Communicator software and the serial port generating a CSV file which is compatible with the most common spreadsheets for additional or future analysis Depending on the version the Mainstream flowmeters and transmitters have analogue and digital output signals for the transmission of measurements or alerts to remote equipment With the flowmeters two programmable switch outputs enable the control of an automatic sampler proportional to the unit of volume measured in addition to the activation of alert signals Connection to remote monitoring supervisory or logging apparatus is possible via the 4 20 mA analogue outputs The outputs are freely programmable to be proportional to the logged values Revision 17 October 2013 Page 15 of 66 3 System Unit Familiarisation 3 1 Portable AV Flowmeter The flowmeter system unit has a replaceable internal battery an ON OFF switch an LED indicator lamp an LCD display and a number of connectors to attach a communication cable optional external power supplies a level sensor and a Velocity Sensor Start by opening the hinged system unit lid to locate the inter
42. f the C Mainstream Data directory is not present on the PC hard disk it will be created automatically by the application when the data is first downloaded Data files can be opened directly in Excel or with most other editors or spreadsheets NB To obtain automatic separation in data columns a comma must be set as a list separator Opening the Mainstream AV Flowmeter Xxxxx CSV file in Excel obtains the information outlined in the example below Revision 17 October 2013 Page 57 of 66 Mainstream Communicator V2 02 40 Data Logger File Manager Configuration Date Time File Manager Mainstream File System V1 01 Memory Capacity 4194304 bytes Memory Available 4166144 bytes 99 3 Memory in Use 28160 bytes 0 7 Number of Files 3 Mainstream F4802 Project Name site Name Start Time End Time File Size Test Project Test Site O5 07 10 10 12 32 O5 07 10 10 16 25 8704 Test Project 02 07 10 15 15 47 02 07 10 15 27 15 File Action Test Project Test Site 01 04 09 00 00 32 01 04 09 03 50 47 10752 Retrieve synch Delete Printer In file the first 20 rows show the main information on the configuration that was programmed into the instrument prior to measurement Following on the measurements taken and stored and separated into columns show the date time and the configured values The units of measurement and number of decimal places are those configured for the display The data Retrieve function is not destru
43. he data logger are stored in the Data subfolder Additional subfolders are created and named in a cascading fashion automatically with configured information by Project Name and Site Name in the Applications Site Data menu Revision 17 October 2013 Page 35 of 66 The file created following a data download has a CSV extension and can be opened with any editor or imported into Excel or other electronic spreadsheets viewed and saved with a new filename The name of the data file is automatically created as in the following example Mainstream_AV flowmeter_BOxxx_100120 095002 CSV Instrument name Mainstream_AV flowmeter Instrument serial number BOxxx Measurement commencement date yymmdd 100120 Measurement commencement time hhmmss 095002 C Mainstream Diagnostics this contains the comms log file saved in the Diagnostics subfolder and holds a record of all the operations carried out by the operator whilst the instrument was connected and is displayed in the Connection Diagnostics in the Local Connection window when the Save button is activated The file created has a Jog extension and can be opened viewed and saved with a new filename via Windows Notepad C Mainstream Archive this contains information retrieved from the Mainstream flowmeter data logger and held in the form of compressed binary files for processing Installing the Mainstream Communicator software may create this directory if it does not exist Installation wil
44. he flowmeter and retrieve logged data Revision 17 October 2013 Page 8 of 66 To install the Mainstream UI software and documentation insert the Mainstream CD into your computer Create a folder C Mainstream and copy the exe file to the folder Create a shortcut to the desktop All sub folders will automatically be created by the software as required 1 3 Communicating with the Mainstream Flowmeter The communications connector on your Mainstream system unit is located externally with the sensor and power connectors The Comms Cable supplied with your flowmeter will have the appropriate connector Connect your Comms Cable to the Mainstream system unit The free end of the Comms Cable has a 9 way D type connector Fit this connector to your PC RS232 port connector If your PC does not have an RS232 port you will need a USB Serial Converter Attach the D type connector to the converter then fit the converter USB plug into your PC The Mainstream Portable system unit detects when your PC is connected and shows that the connection is valid by switching ON the LED indicator lamp Check the LED to confirm that your Comms Cable is fitted correctly Start the Mainstream Communicator UI by clicking on the PC Start button Move your mouse to All Programs then when the Start Menu appears move your Mouse to Mainstream Click on Mainstream Communicator to start the UI The UI button bar will appear at the top of the screen Only the Connection
45. herboard 2 Remove the two fixing screws on the upper and lower hinges 3 The hinges are now freed from the base of the box and the cover with the display can be removed Use the 4 fixing holes to fit the enclosure to the wall or support with 6 mm screws Fasten the enclosure screw the hinges back into their holes and block by re inserting the two M3 screws 6 Connect the display to the Mainstream motherboard again oS Revision 17 October 2013 Page 18 of 66 4 2 PREMIER Fixed AV Flowmeter unit dimensions Outlined below are the overall dimensions of the system unit with drilling centre distances for wall installation of the following instrument PREMIER Fixed AV Flowmeter To fix the system unit to walls or suitable support see paragraph 3 1 1 Revision 17 October 2013 Page 19 of 66 4 3 Portable AV Flowmeter unit dimensions Outlined below are the overall dimensions of the system unit for the following instruments 1 Portable AV Flowmeter Revision 17 October 2013 Page 20 of 66 5 INSTALLATION OF THE VELOCITY SENSOR The Mainstream velocity sensor consists of a streamlined injection moulded uPVC body 105 mm long x 50 mm wide x 19 mm high The sensor operates immersed in the flowing liquid The maximum working temperature of the sensor is 85 At the front of the sensor facing in to the flow are two eyes which use ultrasound to interrogate the moving liquid The sensor body contains circuits to generate this
46. ically converted into a level to area conversion table that is also stored in the Mainstream This table may contain up to 120 points Liquid level measurements are converted into cross sectional area values by reference to this stored level to area conversion table On the Standard Sections screen the application has an intuitive graphical interface for selecting and sizing standard shapes Shapes are split under the Installation option into Full Pipe Partially Full Pipe Open Channel The open channel allows additional choices under the Section option which are Rectangular Trapezoidal Semi Circular Using the Units of Measurement and Format options it is possible to choose the dimensional units of measurement and the number of decimal points required It is sufficient to select the correct shape and enter the relevant dimensional parameters 8 7 2 6 Silt Level and Area Correction The area of the pipe or channel carrying the flow is reduced when silt is accumulated Each method of entering the description of the pipe or channel cross section also contains an option to enter a user defined silt level Mainstream uses this silt level to correct the flow cross sectional area calculation When the liquid level is less than the silt level the flow cross sectional area is zero When the liquid level is greater than the silt level the flow cross sectional area is equal to the area of the pipe or channel cross sectio
47. icator V2 02 40 Data Logger Clock Synchronizer Configuration Date Time File Manager Mainstream F4602 PC Date Time Set Clock Archive Files 0707 1 0 12 42 52 MS Date Time 0707 1 0 12 42 50 Printer 8 10 3 File Manager This screen displays all files in the data logger memory It is possible to retrieve the full data logger memory i e all logged files or download each individual file required An additional option is synchronisation that only updates the PC with data logger details that are not on the PC hard disk All files have the Project Name and Site Name in addition to measurement start and end dates and file size Data downloads clicking any file in the list activates buttons relating to File Action These options include Retrieve Synch and Delete Download Remove or Synchronise of individual files or file groups selected The data files required can be selected with the mouse or using the Retrieve option and transferred from Mainstream in a compressed format to minimise communication time Once downloaded the data is decompressed and transferred into a text file CSV which is compatible with most spreadsheets The compressed data is deleted simultaneously The CSV text file is always created in the following directory C Mainstream Data Project Name Site Name and is called Mainstream_AV flowmeter_Xxxxx CSV where Xxxxx represents the serial number of the Mainstream unit which created the file I
48. itch configured to respond to the liquid level The use of enabling disabling thresholds makes it possible to programme the amount of lag required as shown in the example illustrated below for the level measurement Enabling the output at a value greater than the disabling value CLOSED Switch State OPEN LEVEL Switch Switch OPEN CLOSE Revision 17 October 2013 Page 60 of 66 If the Switch Close level is greater level than the Switch Open level the switch will close when the level rises above the Switch Close level and open when the level falls below the Switch Open level When the level is between the Switch Open and Switch Close levels the switch state on entering this region is maintained CLOSED Switch State OPEN LEVEL Switch Switch CLOSE OPEN If the Switch Close level is less than the Switch Open level the switch will open when the level rises above the Switch Open level and close when the level falls below the Switch Close level When the level is between the Switch Open and Switch Close levels the switch state on entering this region is maintained CAUTION When both Switch Open and Switch Close are configured with equal values the switch behaves as if the Switch Close value is greater than the Switch Open value To avoid unexpected switch operation it is recommended that the switches are always configured with a small amount of hysterisis NOTE The switch configuration data is stored in the Mainstream system unit i
49. ittle obstruction as possible in the pipe SCISSOR JACK BAND Revision 17 October 2013 Page 22 of 66 lt De a i j Visit the following URL link for examples of sensor installation and where to install the sensor http mainstream measurements com products documents Mainstream_ Probe Installation Examples pdf Revision 17 October 2013 Page 23 of 66 6 FIXED INSTALLATION ELECTRICAL CONNECTIONS To use a Mainstream flowmeter or transmitter the following power up and power down voltages are Shown in the table below a 12 V Battery 12 V External 24V External Portable 9 5V ow ans a a vr COMPACT 9 5V C ee Connections for the velocity transmitter flow transmitter COMPACT and PREMIER system units are shown below To access the electrical connection terminal board remove the front cover of the system unit 6 1 Mainstream Velocity Transmitter The complete terminal board for the velocity transmitter is illustrated below Connection details for individual terminal boards are described and illustrated in the following paragraphs in this section Power Supply 12V OV 24V OV Velocity Sensor US Gnd F US Pwr N US Gnd 7 US V1 N US V2 A US Gnd N 6 2 Mainstream Flow Transmitter The complete terminal board for the flow rate transmitter is illustrated below Connection details for individual terminal b
50. l not modify or delete any archive files 8 4 Mainstream Software Connection The Mainstream AV Flowmeter is configured via a serial connection to a PC To communicate with the system unit to the PC RS232 serial port using the serial communication cable Start the Mainstream Communicator program on the PC Mainstream Communicator V2 02 40 Connection h Select the Connection button this will open the window where the appropriate serial port used on the PC COM1 COM32 must be specified Choose the correct serial port and select the Connect button Mainstream Communicator automatically detects the serial ports available on the PC and suggests only those Comm ports from 1 to 32 which are present and not in use by another piece of hardware or application The Mainstream baud rate controls the communication speed over the serial port which is enabling the instrument and PC to communicate This speed can be set to values of 1200 2400 4800 9600 14400 19200 38400 57600 115200 The standard serial communication speed with any PC is 115200 baud Revision 17 October 2013 Page 36 of 66 Mainstream Communicator V2 02 40 Local Connection Configuration Comms Diagnostics Connection Confiquration Comm Por 1 32 Baud Rate 115200 M Connect l Enabled Details relating to the communication in progress between the PC and the Mainstream unit are displayed at the right hand side of the window The software automatically
51. le on the Level Area Table page In this case there are two main options Revision 17 October 2013 Page 47 of 66 Mainstream Communicator 7 07 40 Level Area lable Editor Site Data Configuration Pipe Channel Section Mainstream F4802 instr Standard Section Section Drawing Level Area Table Refresh Level Area Information Level Area Table Level mm Area m2 0 0 0000 2000 2 0000 Level Area Table ID gi Apply Silt Level mm peee o Archive Files Load CSV File Interface Import i idi Level Area Table Editor Printer Insert Setup Level Area lable Editor Delete Print il id Level mm Area m2 Level Area Table Editor permits the generation of a table directly in the Mainstream Communicator software By selecting the Insert button a pop up window opens where it is possible to enter Level values in mm and the corresponding Area in m Every pair of values inserted is transferred into the table displayed on the page By clicking any row in the table and using the Remove button it is possible to remove individual values from the generated table When the table has been completed the Apply button should be selected to transmit the pipe channel configuration to the instrument which the software generates automatically The configuration previously stored and present in the instrument is recovered with the Update button If a table was saved previously it will be recompiled on
52. licable code of practice by suitably trained personnel 4 Repair of this equipment shall be carried out in accordance with the applicable code of practice 5 The X suffix to the certificate number is to indicate that there is a special condition for safe use which is regarding the potential build up of static electricity and the precautions to be taken 6 If the equipment is likely to come into contact with aggressive substances then it is the responsibility of the user to take suitable precautions that prevent it from being adversely affected thus ensuring that the type of protection is not compromised Aggressive substances e g acidic liquids or gases that may attack metals or solvents that may affect polymeric materials Suitable precautions e g regular checks as part of routine inspections or establishing from the material s data sheet that it is resistant to specific chemicals Revision 17 October 2013 Page 4 of 66 WARRANTY ATEX INSTRUCTIONS EHSR 1 0 6 FOR USE WITH MAINSTREAM VELOCITY SENSORS YOUR PRODUCT 1 1 Delivery Checkout 1 2 Installing the Mainstream UI Software 1 3 Communicating with the Mainstream Flowmeter OVERVIEW 2 1 Applications 2 2 Mainstream Products 2 2 1 System Unit for Fixed Installation 2 2 2 Portable system unit 2 3 Measurement sensors 2 3 1 Velocity Sensor rE W Level Sensor 2 3 3 Mainstream Communicator 2 4 Operating Principle 2 4 1 Velocity Measurement 2 4 2 Measur
53. lined below for example can all be present or only partially present With active measurements it is also possible to enable or disable the display depending on user preferences Revision 17 October 2013 Page 52 of 66 Mainstream Communicator V2 02 40 Measurement Display Display Unit Mainstream F4a02 Measurand Measurement Backup Battery Voltage Refresh 12 26 Supply Voltage 12V Battery Voltage Battery Charge Current Level Sensor 1 Loop Current Level 1 Level Sensor 2 Loop Current Level 2 Flow Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity Measurements Selecting the header bar Measurand highlights checked or unchecked parameters Selecting individual tick boxes enables or disables the display of parameters If a parameter is checked it will be displayed if unchecked it will not be displayed This allows for customisation of the display screen Clicking the header bar Unit Size Measurement again causes the symbols to disappear and only the checked measurements remain active Mainstream Communicator V2 02 40 Measurement Display Display Unit Measurand Measurement O Backup Battery Voltage 12 28 Supply Voltage O 12V Battery Voltage Battery Charge Current Level Sensor 1 Loop Current Level 1 Level Sensor 2 Loop Current Level 2 F
54. low Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity NB Once the required variations are introduced the new settings are transferred to Mainstream and become operational using the Apply option Revision 17 October 2013 Page 53 of 66 8 9 2 Units of Measurement This screen enables the configuration of the Units of measurement and the Format of each measurement in terms of number of decimal places The button with the downward arrow to the right of each unit of measurement and format opens a new pull down menu containing the alternative measurement options available for selection The scientific units and number of decimal places selected and configured are used for all instrument functionalities including display visualisation where provided and in the event of a change the conversion is performed automatically Mainstream Communicator V2 02 40 Measurement Unit and Format Editor Display Unit Mainstream F402 Measurand Format Backup Battery Voltage 12 28 Supply Voltage 12V Battery Voltage Battery Charge Current Refresh Apply Level Sensor 1 Loop Current Level 1 Measurements Level Sensor 2 Loop Current Level 2 Flow Cross sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Lebel eel be Le Les gt Forward Flow Hou
55. m current load is 50 mA with the 12VDC power supply In energy saving mode this decreases to 1 mA 6 6 VELOCITY SENSOR The terminal board for the velocity sensor has 6 terminals The velocity sensor cable has two individual conductors black and red respectively It also has two coaxial conductors black and red respectively Revision 17 October 2013 Page 26 of 66 Velocity sensor connections should be carried out as illustrated in the following diagram Velocity Sensor US Gnd Black US Pwr Red US Gnd Black Co axial Screen US V1 Black Co axial Core US V2 Red Co axial Core US Gnd Red Co axial Screen NB The shields on the two coaxial conductors to be connected on the US GND terminals are common in the instrument They can both be connected to one or the other dedicated terminals without distinction 6 6 1 Velocity Sensor Power Supply The Mainstream flowmeter or transmitter provides the sensor with power via US PWR and US GND terminals to which the red US Power and black US Ground conductors should be connected respectively 6 6 2 Velocity Sensor Measurement Signals The measurement signals processed by the sensor are transmitted to the Mainstream system unit via two coaxial conductors The shields on the two coaxial conductors should be connected to the relevant US GND terminals HINT Under special circumstances it may be advantageous to mount the Velocity Sensor with the ultrasonic eyes facing downstream O
56. mm wide by 20mm high The probe operates immersed in the flowing liquid At the front of the probe facing into the flow are two eyes which use ultrasound to interrogate the moving liquid The probe body contains the electronic circuits which generate this ultrasound and process the ultrasonic signals The maximum working temperature of the probe is 85 C The velocity sensor is connected to the Mainstream system unit via a reinforced cable This cable Supplies power to the Velocity Sensor and carries data back to the system unit The power supply to the sensor and transmits the measured signals that have already been processed to the system unit The standard Velocity Sensor cable length is 10 metres Probes can be supplied with longer cable lengths up to a maximum of 500 metres For ATEX approved velocity sensors the maximum cable length is 300 metres Revision 17 October 2013 Page 12 of 66 2 3 2 Level Sensor Mainstream flowmeters can operate with any Level Sensor capable of generating a 4 20 mA signal In many applications the liquid level is determined by means of a pressure transmitter which uses a vented cable to provide an atmospheric reference This vented cable terminates inside the Mainstream fixed installation flowmeter system unit which is equipped with a breather port to access the atmospheric pressure Pressure transmitters supplied by Mainstream Measurements Ltd may be equipped with an optional adapter which attaches to a
57. n minus the cross sectional area of the silt Mainstream Communicator 2 02 40 Standard Section Editor E3 Mainstream Communicator 2 02 40 Standard Section Editor Site Data Configuration Pipe Channel Section Site Data Configuration Pipe Channel Section Mainstream F4802 Standard Section Section Drawing Level Area Table R Standard Section Section Drawing Level Area Table Refresh Refresh Installation Cross Section Dimension Units Dimension Format Installation Cross Section Dimension Units Dimension Format Full Pipe y Circular bd D x art Filled Pipe Circular x r er Appl Appl PRY d Diameter mm PRY s Silt Level mm Mainstream F4802 PartFilled Pipe Open Channel Archive Files Archive Files Load Load Printer Printer Setup Re a Setup Print Print Revision 17 October 2013 Page 46 of 66 Mainstream Communicator 2 02 40 Standard Section Editor Mainstream Communicator 2 02 40 Standard Section Editor Site Data Configuration Pipe Channel Section Site Data Configuration Pipe Channel Section Mainstream F4802 Standard Section Section Drawing Level Area Table Standard Section Section Drawing Level Area Table Refresh Refresh Installation Cross Section Dimension Units Dimension Format Installation Cross Section Dimension Units Dimension Format Open Channel v Rectangular vimm yD Ope
58. n Channel y Trapezoidal yi mm yi D Appl Appl w Width mm ASER Sl b Bottom Width mm PRY h Height Fapecolds Top Width rapezoidal Sit REEN yn SemeCireular esa eyeimm Archive Files eig mm s Silt Level mm Mainstream F4802 Archive Files Load Load When graphical and dimensional configuration has been carried out the Apply button should be selected to transmit the pipe channel configuration to the instrument which the software generates automatically Previous configurations that have been stored in the instrument may be recovered by selecting the Load option When the correct graphical and dimensional representation has been carried out select Apply to transmit the pipe channel configuration to the instrument which the software generates automatically Previous configurations that have been stored in the instrument may be recovered by selecting the Load option Mainstream Communicator V2 02 40 Cross Section Drawing Editor Site Data Configuration Pipe Channel Section Mainstream F4802 Standard Section Section Drawing Level Area Table ID Installation Open Channel Silt Level mm lo Refresh Apply Archive Files View All Zoom In Drawing View 480 x 360 mm Mode Draw Number of Points 0 x 245 mm Y 347 mm An additional option for certain cases where it is necessary to configure the AV Flowmeter for irregularly shaped measurement sections is availab
59. n non volatile memory and is not affected by failure of the power supply However failure of the power supply causes the switches to open Normal operation will resume automatically after the first measurement following restoration of the power supply HINT By configuring a switch so that it remains closed under all operating conditions the switch can be used a as power supply failure indicator 9 3 4 20 mA Analogue output Mainstream Velocity and Flow transmitters and COMPACT Fixed AV flowmeter have one 4 20 mA analogue output The Mainstream PREMIER Fixed AV flowmeter has three 4 20 mA outputs The 4 20 mA section has two screens Configuration and Calibration which is used to define the operating characteristics of the Mainstream system unit current outputs 9 3 1 4 20 mA Output 1 2 3 Configuration The Configuration page makes it possible to define the Status of the output which can be Enabled or Disabled and the Control Parameter i e the required measurement that is transmitted with the related scale start and end values The example screen below shows a configuration of 4 20 mA output enabled for the transmission of flow values with a scale from O to 1000 m h Revision 17 October 2013 Page 61 of 66 Mainstream Communicator V 07 40 4 20 mA Output Configuration LCD Switches 420 mA Configuration Calibration 4 20 m Output 1 Configuration Status W Enabled Control Parameter Flow Rate 4 20 mA Outp
60. n terminals for each output This enables use in PASSIVE mode pulse powered by the Mainstream or in ACTIVE mode continuously powered by an external supply NB 4 20mA outputs maybe configured to any measurand using Mainstream Communicator software Revision 17 October 2013 Page 28 of 66 CAUTION Connection diagrams on the terminal board vary according to the type of instrument The following sections are repeated and highlighted by connection type for the relevant Instrument WARNING Pay particular attention to compliance of the diagram with the terminal board of the respective instrument 6 8 1 Passive 4 20mA Output Connection for COMPACT AV Flowmeter amp Transmitters In passive mode the signal loop is powered by an external voltage applied across the VE and VE terminals The auxiliary 12V power source is not used and the 12V and OV terminals are left open circuit The voltage across the VE and VE terminals after allowing for all components in the signal loop must be at least 5V If using 12V power input the connection must be in PASSIVE mode only If using 24V power input the connection can be ACTIVE or PASSIVE mode CAUTION the 4 20mA output circuits are protected against transients reverse polarity and over voltage supplies However the user should take adequate precautions to prevent sustained fault conditions The electrical connections for an analogue output in passive mode are illustrated below 4 20mA Ou
61. n the Mainstream system unit is overwritten and destroyed 8 2 Mainstream Communicator UI Setting the Time Mainstream needs to know the date and time so that data in the logger is time stamped correctly The date and time are set using the Mainstream Communicator UI Click the Data Logger screen on the UI button bar and then click the Date Time tab This opens the Date Time form The PC and Mainstream date and time are displayed Clicking the Apply button synchronises the Mainstream clock to the PC View the LCD on the Mainstream system unit to check the updated time 8 3 Mainstream Communicator Software Installation If the software application has no connectivity with an instrument all configuration functionalities will be inactive Mainstream Communicator 2 02 40 Agg Connection On the route directory of your PC create a folder C Mainstream Program Files and copy MSC exe to this folder Installing Mainstream Communicator will not overwrite any software other than previous installations of Mainstream Communicator with the same version number The following sub directories will be created when the functions are used C Mainstream Backup this contains stored Mainstream configuration data Installing the Mainstream Communicator software may create this directory if it does not exist Installation will not modify or delete any backup information C Mainstream Data this contains the CSV data files downloaded from t
62. nal battery ON OFF switch and LCD Press the ON OFF switch until the LCD starts operating This should occur within 2 3 seconds If the LCD does not start this means that there is no power supply The internal battery is not fitted not connected or is flat Battery replacement is described in section X X When the Mainstream system unit starts to operate the LCD cycles through several pages of information showing the Mainstream system Unit ID and product type followed by the date time power supply voltages and measurement data Each page is displayed for 2 5 seconds The LCD page sequence can be set by the user View the LED indicator on the outside of the system unit During normal operation this emits a short flash every 10 seconds Use this for a quick check of the system unit status without opening the system unit case to view the LCD or connecting the unit to a computer The LED also relays other messages It switches on for five seconds when the system unit starts up and is on continuously whilst a communication device e g a PC is connected to the serial port If the system unit shuts down because the battery is flat the LED emits three short flashes every ten seconds To shut down the Mainstream system unit hold down the ON OFF switch for ten seconds The Mainstream stops measuring and closes the active data logger file the LCD displays a Power Down message and the processor goes into sleep mode 3 2 Velocity Transmitter
63. nterpolation between the calibration points is effective in removing any non linearity inherent in the Level Sensor 2 4 3 Flow Rate and Quantity Calculation The liquid flow rate is determined by multiplying together the measured velocity and the effective flow cross sectional area deduced from the liquid level measurement Mainstream also calculates two flow quantities the quantity in the last hour and the total quantity The quantity in the last hour is continuously updated by integrating the measured flow rate Revision 17 October 2013 Page 14 of 66 Note If the flow rate is negative because the measured velocity is negative the quantity in the last hour remains unchanged Every hour on the hour the hour quantity value is added to the total quantity and the quantity in the last hour is reset to zero 2 5 Displaying re transmitting and logging measurements When provided the display is an LCD backlit two line X 16 character alphanumerical display and sequentially displays the date time and required configurable combination of all instantaneous measurements taken and processed directly in the units The following parameters can be displayed Level Level Sensor loop current Wet Area Average velocity Signal quality Instantaneous flow rate Direct and reverse total and partial hourly unit of volume Power supply voltages backup battery internal battery and external source Battery load current if pr
64. oards are described and illustrated in the following paragraphs in this section Power Supply 12V 7 ov 24V 7 ov N Revision 17 October 2013 Velocity Sensor US Gnd 7 US Pwr N US Gnd A US V1 N US V2 7 US Gnd N Level Sensor Lvl Gnd A Source N Sense f Lvi Gnd N Page 24 of 66 4 20mA Output 12V 7 lout N lout 7 ov N 4 20mA Output aN lout N lout 7 ov N 6 3 Mainstream COMPACT Fixed AV Flowmeter The complete terminal board for the COMPACT fixed AV flowmeter is illustrated below Connection details for individual terminal boards are described and illustrated in the following paragraphs in this section Velocity Sensor Power US Gnd 7 Level 4 20mA Switch Supply US Pwr Sensor Output _ Outputs 12V 7 US Gnd A Lvl Gnd 7 12V swiA 7 ov N US V1 N Source N lout SW 1B N 24V 7 US V2 Ff Sense lout SW2A 7 v N US Gnd N Lvi Gnd ov sw2B 6 4 Mainstream PREMIER Fixed AV Flowmeter The complete terminal board for the PREMIER fixed AV flowmeter is illustrated below Connection details for individual terminal boards are described and illustrated in the following paragraphs in this section 4 20mA Outputs 12V 5 lout lout O ov Velocity w 12V Sensor lout Power US Gnd 7 Level Level lout Switch Supply US Pwr Sensor 1 Sensor 2 O ov Outputs 12V 7 US Gnd 7 Lvi Gnd 7 Lvi Gnd A o 1V sw 1A 7 oN US
65. own in red The signal current is derived from the auxiliary 12V supply and is routed through the current regulator terminals VE and OV into the external circuit The resistance of the external circuit should not exceed 200 ohm 6 8 4 Active 4 20mA Output Connection for PREMIER AV Flowmeter The electrical connections for an analogue output in active mode are illustrated below Revision 17 October 2013 Page 30 of 66 4 20mA Outputs VE External Circuit VE In active mode the 12V and VE terminals are connected by a link shown in red The signal current is derived from the auxiliary 12V supply and is routed through the current regulator terminals VE and OV into the external circuit The resistance of the external circuit should not exceed 200 ohm NB The same 12V power source is used for all analogue outputs By connecting the three active outputs there will be no isolation between them even though the outputs remain isolated from the Mainstream system unit and any output connected in passive mode NB Each output is protected by a 50mA fuse at the 12V auxiliary power source Therefore any fault which causes excessive demand can cause malfunctioning of all the outputs in active mode 6 9 Connecting Switch Outputs for COMPACT and PREMIER AV Flowmeters The two switch outputs are accessible via terminal pairs marked SW1 and SW2 Switch Outputs ow W swat W
66. proximately 10 5 Volts current limited to less than 30 mA from the Level Source terminal to the Level Sense terminal Any screen on the Level Sensor cable should be connected to the Ground or Level Ground terminal as appropriate CAUTION It is not uncommon for pressure transmitter manufacturers to use a Black lead to indicate the positive connection and a Red lead to indicate the negative connection Always check the manufacturer s data for the correct colour code 6 7 2 Connecting to an Active Level Sensor Connections for an active Level Sensor are illustrated below Level p Sensor Ve Ve Lvi Gnd Transmitter External Power Supply Source Cxe led Sense Lvi Gnd Active Level Sensors will normally be continuously powered from an external supply The positive side of the supply is connected to the Level Sensor and the negative side of the supply is connected to the Level Ground terminal The Level Source terminal is unused WARNING Mainstream is fitted with protection circuits to guard against incorrect transmitter installation and fault conditions e g short circuit transmitter driven by a low impedance supply These circuits are capable of sinking currents up to 1A for a limited duration only The user should take adequate precautions to prevent sustained fault conditions 6 8 Connecting the 4 20 mA Outputs With regard to the analogue outputs all the instruments have 4 connectio
67. quid level and Mainstream calculates the flow cross sectional area using a stored description of the pipe or channel geometry The Mainstream Velocity Sensor operates immersed in the flow and projects two ultrasonic grid patterns into the moving liquid Bubbles and solid particles carried by the flow act as tracers reflecting ultrasound back to the probe as they pass through the two grids Mainstream measures the time for tracers to travel between the two grids Dividing the grid separation by the travel time gives the tracer velocity The liquid flow rate is the man flow velocity multiplied by the flow cross sectional area A unique feature of the Mainstream is its signal quality reading This shows the percentage of the tracer data that Mainstream is able to process into velocity measurements A high signal quality confirms the measurement integrity The signal quality is a valuable metric for the flowmeter condition monitoring 2 4 1 Velocity Measurement The Mainstream velocity sensor transmits ultrasonic signals in the fluid in order to create a wide inspection and measurement area Particles and air bubbles suspended in fluid in the inspection area reflect the ultrasonic signal that goes back to the sensor Revision 17 October 2013 Page 13 of 66 D Direction of OO Oe o o flow z d i a p o o O C a i m a Velocity sensor The signals that are reflected and go back to the sensor are processed via advanced phas
68. r Quantity m3 min Forward Flow Total Quantity 5 Hn Reverse Flow Hour Quantity USG min Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity Le NB Once the required variations are introduced the new settings are transferred to Mainstream and become operational using the Apply option 8 10 DATA LOGGER There are three pages in the Data Logger section Configuration Date Time File Manager These are dedicated to the configuration of the parameters to be logged related procedures synchronisation of the instrument clock with the PC and the download of logged data 8 10 1 Configuration This screen has some options relating to data logger operating modes which are described individually below Recording Mode is enabled by selecting the arrow for a drop down screen Two options are available for managing the data logger memory Stop When Full this option stops logging so that older data is not lost Delete Old File continues logging when the data logger is full i e available memory is full by overwriting the older data which in turn is automatically deleted Revision 17 October 2013 Page 54 of 66 Mainstream Communicator V2 02 40 Data Logger Configuration Editor Configuration Date Time File Manager areal Mainstream F4802 Memory Control File Size Control File Content Control Recording Mode Auto Start New File Start Time Logger File Content Pafrash Delete Old File Every
69. r performance as the phase coherence advanced technology uses a filter to suppress interference The default value is Medium but can be varied in five steps to suit particular hydraulic conditions from Very Low to Very High Signal Quality to Fail is the minimum quality of the velocity sensor ultrasound signal value below which the measurement itself is not considered reliable The default value is generally fixed at 10 When signal quality falls lower than the minimum value set and the reading value is repeated consecutively for the number of times set in the Fail Hold Off Error parameter Mainstream indicates and logs the velocity value as equal to zero Minimum quality can be set from 1 up to 50 in eight different stepped values Revision 17 October 2013 Page 51 of 66 Fail Hold Off is a parameter that allows the filtering of 1 to 5 consecutive error situations to exceed the minimum signal quality threshold Measurement time represents the time allowed for the instrument to process a velocity measurement The default value is equivalent to 1 second but it can be reduced to 100 ms or incremented up to 10 seconds where there are particularly demanding measuring situations Information limit defines the quantity of data processed to re establish each velocity measurement The default value is 128 but can be varied from 64 to 2048 The increase in this value improves measurement reproducibility but there is a slower response to flow variations
70. rdinarily this would lead to an incorrect reverse indication of the flow direction This can be overcome by reversing the connections of co axial cable cores to terminals US V1 and US V2 6 7 Level Sensor The terminal board for connecting the Level Sensor has 4 terminals marked as follows Lvl Gnd Source Sense and Lvl Gnd The Level Sensor can be active or passive i e self powered or powered by Mainstream When connected to Mainstream the Level Sensor can be PASSIVE pulse powered by the Mainstream or in ACTIVE mode continuously powered by an external supply The Level Sensor connections to terminals Lvl Gnd Source and Sense therefore depend on the type of transmitter used and the possible alternatives are illustrated below In the most common instrument configuration with the use of a relative pressure immersion transmitter for the level measurement connection is via two conductors only as illustrated below Level Sensor Lvi Gnd Red Source PTX Sense Blue Lvi Gnd NB The connections outlined above are only valid for pressure transmitters with an original two wire specification Revision 17 October 2013 Page 27 of 66 6 7 1 Connecting to a Passive Level Sensor Connections for a passive Level Sensor are illustrated below Level Sensor Lvi Gnd Source Ve Transmitter Sense Ve Lvi Gnd With these connections the Mainstream delivers ap
71. s on two rows with backlighting sequential display in scientific units programmable for all or part of the instantaneous measurements taken and processed Date and time Backup internal and bottom external battery power voltages Battery load current Liquid head Level Sensor loop current Wet area Velocity Signal quality Flow Total and partial hourly volume unit direct and reverse RS 232 serial port for complete instrument programming and data downloads from data logger Provided with every instrument in English operates ina Windows 98 2000 NT XP Vista Windows 7 environment for complete programming simultaneous instantaneous display of all measurements taken in addition to data downloads 1 x Immersed velocity sensor 1 x 4 20 Level Sensor active or passive 1 x 4 20 mA proportionally configurable to flow and one of the various parameters measured 2 relay switches with 60V AC DC capacity at 200 mA independently programmable for alerts on any measurement taken repetition of totals or sampler control 4 MB on Flash memory with data retention for 20 years Programmable acquisition at intervals configurable from continuous or from 2 5 seconds to 60 minutes for logging all or part of the instantaneous measurements taken and processed Run time greater than 12 months with logging of all measurements and acquisition interval equivalent to 1 minute Better than 0 05 of end scale Better than 2 in good water conditions
72. screen NB The maximum number of pipe channel configurations permitted in a table is 99 rows 8 8 SENSORS There are two pages for the configuration and calibration of the Level Sensor and velocity sensor Revision 17 October 2013 Page 48 of 66 Mainstream Communicator 2 02 40 Level Configuration and Calibration x Level Velocity Mainstream B0295 Configuration Editor Calibration Refresh Level Transmitter ID ea lite T a 20 000 2000 Warm up Time i Configuration Files 0 7 S Load Level Offset mm pes Defaults pee Printer Calibration Edit cane PE ee Pa aca Level Sensor Calibration Setup Insert Delete Level Sensor Loop Current mA Print Liquid Level mm OK Cancel 8 8 1 Level On the Level screen it is possible to configure the transmitter warm up time and any measurement offset value and to calibrate the transmitter used Level Sensor ID denotes the model and serial number relating to the Level Sensor used and can be stored in the window Warm up Time allows for entry of the sensor warm up time required for the Level Sensor from the time at which it is powered The warm up time or reading stabilisation should be set at a value greater than the time required to stabilise the reading relating to the Level Sensor used Witha standard piezoresistive immersion Level Sensor the warm up time is set at 0 7 seconds A short warm up time saves energy but also requires a rapid response from th
73. settings are transferred to Mainstream and become operational Logger File Content provides two options that outline which information is stored in the data logger CSV Data Only this data logs the measurements relating to only those parameters chosen by the operator All Measurands the values for all measurements taken by the instrument are automatically logged The parameters to be logged can be selected by clicking on the header bar Default CSV File Content Checked or unchecked symbols become active to the right of each measurement that the instrument is scheduled to take or process Selecting the tick boxes enables or disables the logging of parameters if a parameter is checked it will be logged if it is unchecked the parameter will not be included in logged data Logging can be customised to include only measurements of interest By selecting the header bar Default CSV File Content again hides the tick boxes and only the checked measurements remain active Revision 17 October 2013 Page 55 of 66 8 10 2 Date Time Mainstream AV Flowmeter has an internal clock operating in real time The clock is used to calculate hourly totals check time measurements such as pulse outputs proportional to flow provide correct references to data logged in the data logger and the relevant transfer to memory The Date Time screen displays the PC and Mainstream date and time simultaneously The Update MS PC button synchronises
74. signal analog to digital conversion processing in the Mainstream system unit to the level measurement The function also provides the means to delete old calibration points and insert new calibration data in to the table Mainstream performs a linear interpolation between the various stored calibration points to re establish the measurements acquired over the entire scale of the Level Sensor When using a pressure transmitter it is appropriate to check the calibration every six months minimum in order to recalibrate as a function of the normal deviation of the transmitter itself Calibration is normally performed by checking each previously stored value or by taking a series of readings over the instrument operating scale In the event of a reading which differs from the stored calibration value it will be necessary to proceed with a calibration correction Calibration is performed regardless of the type of transmitter used by simulating the level measurement over very precise reading values With the Level Sensor placed to read a determined value and after verification select the Insert option A new dialogue window opens that allows Mainstream to read the current value received over the Level Sensor loop and assign it an exact liquid level expressed in millimetres The exact level value in millimetres should be entered into the Liquid Level mm field When you select OK a new calibration point is added to the table with the exact ref
75. ss sectional Area Ultrasound Signal Quality Flow Velocity Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantity Reverse Flow Total Quantity Flow Hour Quantity Flow Total Quantity Revision 17 October 2013 Page 59 of 66 NB Once the required variations are introduced the new settings are transferred to Mainstream and will only become effective once the Apply button is used 9 2 SWITCHES for Pulse Output and Alert Thresholds The Mainstream AV Flowmeter has two switch outputs that make it possible to control remote instruments e g automatic samplers or alert systems Mainstream Communicator V 02 40 Switch Configuration Editor Eg LCD Switches 4 20 mA Mainstream B0295 Switch 1 Configuration Switch 2 Configuration Switch Status IF Enabled Switch Status 7 Disabled Refresh Control Parameter Flow Rate Apply state Output Disabled zi eF E Load Pulse Output w Enabled wi Totaliser Type Positive Only Printer Quantity per Pulse ih hong Setup i Switch State Open lt gt witch State Open lt gt Frint Each of the outputs can be configured independently and proportionally to one of the measurements taken or processed with independent enabling disabling thresholds and proportionally to the unit of volume The effect of using different switch Open and switch Close values is to provide hysterisis This is illustrated below for a sw
76. t information can be printed at any time by selecting the print button 8 6 SYSTEM UNIT The System Unit menu enables access to the following screens which provide all the information relating to the connected Mainstream unit characteristics Product Measurands PSU Comms Logger Outputs Status 8 6 1 Product This screen displays the data unique to the Mainstream instrument 8 6 2 Measurands This screen describes all the possible measurands available 8 6 3 PSU This screen describes all possible power inputs 8 6 4 Comms This screen shows communication and denotes all possible baud rates 8 6 5 Logger This screen illustrates memory availability and capacity for logging data 8 6 6 Outputs This screen opens a further three screens of information describing LCD Switch and 4 20mA Each will give data on relative outputs 8 6 7 Status This screen describes the current information relating to the power supply This screen also allows for the unit to be switched on or off Revision 17 October 2013 Page 40 of 66 Mainstream Communicator 2 02 40 Product Information Product Measurands PSU Comms Logger Outputs Status System ID Mainstream F4802 Product Type AV flowmeter Country UK Refresh Mainstream F4802 Hardware Version Ai 2 02 Manufacture Date 21 06 10 Firmware Yersion Malibu Programming Date 30 06 10 Archive Files CAUTION This Mainstream product is NOT intrinsically
77. t is constructed from a rugged high impact structural copolymer The system unit is water tight and contains Level Sensor and velocity sensor control and interface circuits a flow computer LCD data logger two opto isolated switch outputs and serial communications interface m Velocity sensor with a standard 10 metre cable length optional 7 RS232 interface cable to connect to the PC with 9 pin D type connector USB converter available m CD with user manual and Mainstream Communicator software Revision 17 October 2013 Page 11 of 66 Additional accessories can be provided which vary for each solution on the basis of user and installation requirements 2 2 1 System Unit for Fixed Installation The system units for the Mainstream meters and transmitters for fixed installation are all housed in a hardwearing aluminium enclosure and are designed for wall installation The converter incorporates the system power supply circuits the velocity sensor control and the measurement processing computer Depending upon the version it is also possible to take level measurements from passive and active transmitters with relevant interfaces and provide analogue and digital output signals for remote measurement relay Flowmeters also have a data logger to log all measurements taken with a programmable time interval ranging from 2 5 seconds up to an hour On the front of the flowmeter instrument there is an liquid crystal display which shows all rea
78. tery if ordered this is the power pack for the system unit and is normally shipped with the system unit fully charged and ready for operation Portable only Spare Batteries these are 12V 7 5Ah deep discharge batteries identical to the battery fitted in the Mainstream system unit Portable only Fast Battery Charger this recharges the Mainstream battery The battery must be removed from the Mainstream system unit for fast charging The charge time is about 8 hours Portable only External Power Supply Adapter this is used to operate the Mainstream system unit from a mains supply If an internal battery is fitted in the Mainstream whilst it is powered by the external power supply adapter the internal battery will be recharged The charge time is several days USB Serial Converter this device adapts the Comms Cable to fit a PC USB port Switch Cable this is used when the Mainstream is to control additional equipment typically a sampler Probe Mounting Hardware this is used to fix the Velocity Sensor and level sensor inside the pipe or open channel It may be shipped in a separate consignment to the Mainstream flowmeter Once you have identified all the components of your Mainstream flowmeter install the Mainstream documentation and UI software on your PC 1 2 Installing the Mainstream UI Software The Mainstream CD contains the flowmeter documentation and the Mainstream Communicator UI software that is used to configure t
79. time instantaneous measurements taken sequentially in addition to displaying totals All electrical connections are made using suitable terminal boards inside the system unit Every Mainstream flowmeter can be identified by a unique serial number in the microprocessor memory 2 2 2 Portable system unit The flow rate converter in the portable Mainstream meter is housed completely in a shockproof plastic mini case The converter incorporates all the circuits and has the same functionality as the flowmeter designed for fixed installation with the exception of the analogue outputs which are not available The standard 7 5AH removable battery is also incorporated into the instrument The ON OFF switch and liquid crystal display are under the case lid On the outside of the case there are four rapid connection fittings to connect the level and velocity sensors and the series communication and auxiliary signals 2 3 Measurement sensors All Mainstream flowmeters and velocity flow transmitters have a velocity immersion sensor whereas for the level measurement and resulting calculation of the wet area every instrument can be equipped with a high precision pressure immersion transmitter or an ultrasonic radar or other type of Level Sensor with an active or passive 4 20 mA output signal duly connected to the flowmeter or transmitter 2 3 1 Velocity Sensor The velocity sensor comprises a streamline injection moulded uPVC body 105 mm long by 50
80. tput 12V lout lout OV VE External Circuit VE 6 8 2 Passive 4 20mA Output Connection for PREMIER AV Flowmeter In passive mode the signal loop is powered by an external voltage applied across the VE and VE terminals The auxiliary 12V power source is not used and the 12V and OV terminals are left open circuit The voltage across the VE and VE terminals after allowing for all components in the signal loop must be at least 5V CAUTION the 4 20mA output circuits are protected against transients reverse polarity and over voltage supplies However the user should take adequate precautions to prevent sustained fault conditions The electrical connections for an analogue output in passive mode are illustrated below Revision 17 October 2013 Page 29 of 66 4 20mA Outputs VE External Circuit VE CAUTION For correct operation the minimum voltage applied to the VE and VE terminals should not be less than 8V The maximum voltage applied to the same terminals should not be greater than 30V 6 8 3 Active 4 20mA Output Connection for COMPACT AV Flowmeter amp Transmitters The electrical connections for an analogue output in active mode are illustrated below 4 20mA Output 12V lout lout OV VE External Circuit VE In active mode the 12V and VE terminals are connected by a link sh
81. tream Communicator provides flow transmitter diagnostics and allows the user to set configuration options For terminal board connection details refer to Section 6 4 Revision 17 October 2013 Page 17 of 66 4 INSTALLATION OF THE SYSTEM UNIT The system units for the Mainstream flowmeters and transmitters designed for fixed installation are all housed in hardwearing aluminium enclosures designed for wall installation Outlined below are the external dimensions of the system units in addition to drilling centre distances for fitting to the wall 4 1 VT QT amp COMPACT Fixed AV Flowmeter Unit Dimensions Outlined below are the overall dimensions of the system unit with drilling centre distances for wall installation of the following instruments Velocity Transmitter Flow Rate Transmitter COMPACT AV Flowmeter 4 1 1 Access to fixing holes for COMPACT and PREMIER Fixed AV Flowmeter The Mainstream units which are equipped with a display have a ribbon cable between the display and the motherboard To protect the cable and the related connections from being accidentally pulled when opening the enclosure cover there are two steel hinges that prevent the total removal of the cover To access the fixing holes on the left side of the enclosure the hinges must be removed The hinges are attached to the base of the enclosure with two M3 threaded screws To remove the hinges proceed as follows 1 Remove the plate connector from the mot
82. us display of all measurements taken in addition to data downloads 1 x Immersed velocity sensor 2 x 4 20 mA Level Sensors active or passive 3 x 4 20 mA independent and proportionally configurable to all parameters measured including Velocity Flow and Signal Quality 2 relay switches with 60V AC DC capacity at 200 mA independently programmable for alerts on any measurement taken repetition of totals or sampler control 4 MB on Flash memory with data retention for 20 years Programmable acquisition at intervals configurable from continuous or from 2 5 seconds to 60 minutes for logging all or part of the instantaneous measurements taken and processed Run time greater than 12 months with logging of all measurements and acquisition interval equivalent to 1 minute Better than 0 05 of end scale Better than 2 in good water conditions Tank system tests typically better than 2 In various field installations typically better than 5 with Velocity gt 50 mm s and Level gt 50 mm with uniform conditions of motion 260 x 160 x 90 mm I x h x d IP66 standard 20 C TO 60 C 4 Kg 24VDC 12 28VDC Maximum current absorption 200 mMA12VDC 11 5 13 5VDC with conditioner for battery charger or direct connection to photovoltaic panel Page 66 of 66 DISPLAY COMMUNICATION SOFTWARE INPUTS DIGITAL OUTPUTS DATA LOGGER ACCURACY of level conversion ACCURACY of velocity measurement ACCURACY of flow
83. ut 2 Configuration Status if Enabled Control Parameter Ultrasound Signal Quality Ultrasound Signal Quality Flow velocity 4 20 m Flow Rate Forward Flow Hour Quantity Forward Flow Total Quantity Reverse Flow Hour Quantit Reverse Flow Total Quantit Flow Hour Quanti Flow Rate m3 h 4 mA 0 Flow Rate m3 h i 20 mA 1000 Ultrasound Signal Quality 24 4 mA corre Ultrasound Signal Quality 24 20 mA 100 0 Flow Velocity rims 4 mA 0 Flow Velocity mm s 20 mA Mainstream F4au Retresh Apply Archive Files 500 9 3 2 Calibration The Calibrate 4 20 mA outputs function provides the mechanism to adjust the 4 mA and 20 mA currents from the Mainstream system unit 4 20 mA output circuits DAC Digital Analogue Conversion codes are the calibration values that generate the 4 mA and 20 mA current signals The default calibration values if required to align the measurements with the signal acquisition equipment can be changed by increasing or decreasing the DAC codes with the up down arrows to obtain the required output values for the scale start and end values A correct calibration procedure can be carried out as follows 1 UJ Revision 17 October 2013 Disconnect any instrument connected to the 4 20 mA to be calibrated and connect a milliammeter with a live connection or alternatively connect the milliammeter in series to the current loop Change the 4 mA DAC code to obt
84. utable file should be copied onto the PC s hard drive in the user s preferred folder or subfolder 8 1 Mainstream Communicator UI Overview On launch of the software application a horizontal bar appears on the upper part of the monitor with an active Connection button which enables connection to the Mainstream system unit The Mainstream Communicator UI is controlled using the button bar in the window located at the top of the PC screen The control buttons are only enabled when communication with the Mainstream flowmeter system unit is established Clicking a control button opens the associated form A second click closes the form Clicking the button twice moves an open form to the front Each form contains a group of related functions The individual functions are accessed using tabs on the form The main functions in each group are as follows Connection this form handles the details of the communication between the Mainstream Communicator UI on your PC and the Mainstream flowmeter system unit hardware System Unit this form identifies the Mainstream flowmeter and the resources it contains It also provides functions to monitor the system unit power supply and operating status to start and stop the Mainstream system unit equivalent to pressing the ON OFF switch Application this form includes a site data entry for measurement traceability and tools to define the geometry of the pipe or channel in which the flow is being me
85. xisting field situation Revision 17 October 2013 Page 50 of 66 Mainstream Communicator V2 027 40 Velocity Measurement Configuration Level Velocity Mainstream B0295 Configuration Correction Signals Histogram Velocity Configuration Refresh Velocity Probe ID ocale Factor BiDirectional Velocity Apply V Probe 1234 0 736 W Enabled Configuration Files Direction Reversal Warm up Time Noise Suppression moo Loen 20 ms Large Histogram Averaging Bee Disabled siqnal Quality to Fail Fail Hold Off 10 0 gs 3 smart Power Saving Print Disabled ee setup Measurement Time Information Limit 1 5 h 25 Defaults Print Scale Factor translates the Doppler frequency data generated by the Enhanced Phase Coherence Processing algorithm in the flow velocity The probe scale factor is fixed at manufacture The normal probe scale factor is 0 736 mm S Hz For applications with particular hydraulic conditions the default value could be changed on the basis of the actual field situation Warm up Time is the time required for the measuring system to acquire a reliable measurement from the time at which it is powered The warm up time or reading stabilisation should be set at a value greater than the time required to stabilise the reading relating to the Level Sensor used and the existing hydraulic conditions The value can be set from 20 to 100 ms Noise suppression allows for optimisation of flowmete
86. y Flow Total Quantity 12V LCD Operation Always ON Display Sequence Mainstream F4802 Refresh Apply Archive Files Load Printer Setup Print All pages have a toolbar on the right which makes it possible to update instrument settings These functions include REFRESH retrieves current information applicable to the data functionality screen APPLY transfers new configuration values edited in the software LOAD load previously memorised configuration settings SAVE SAVE AS SETUP setup the default printer setting PRINT print the current page 8 5 1 Refresh The Refresh button calls for communication with the instrument and an update of current instrument settings or readings on the screen Any application page opened has default values that are updated with instrument information via the Refresh button only 8 5 2 Apply When software configuration changes are made they are not simultaneously and immediately active in the instrument The changes must be transferred to the Mainstream unit using the Apply button 8 5 3 Load This allows previously saved configuration settings to be loaded Revision 17 October 2013 Page 39 of 66 8 5 4 Printer Setup All pages can be printed to keep a record of instrument programming The Setup button opens a new dialogue window that allows the selection of the desired PC printer 8 5 5 Print The current window containing all relevan

USER MANUAL - Mainstream Measurements LTD

Contents

Download Pdf Manuals

Related Search

Related Contents