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5:  Maintenance & Repair

42

U3000/U4000 User Manual

  (Issue 2.0)

Содержание U3000

Страница 1: ...Micronics U3000 4000 Ultrasonic Flowmeter User Manual Issue 2 0...

Страница 2: ......

Страница 3: ...cers 10 2 3 1 Transducer positioning 10 2 3 2 Preparation 11 2 3 3 Transducer attachment 11 2 3 4 Attaching the guide rail to the pipe 12 2 3 5 Fitting the transducers 12 2 4 Installing the USB Virtua...

Страница 4: ...printer 36 4 8 Operation with the Calec ST Energy Totaliser 38 4 8 1 Pulse output 38 4 8 2 Connecting the U3000 U4000 to the Calec ST Energy Totaliser 38 4 8 3 Configuring the U3000 U4000 38 4 8 4 Con...

Страница 5: ...k Start set up procedure Continuous signal monitoring Isolated pulse output Isolated current output 4 20mA 0 20mA or 0 16mA Password protected menu operation for secure use Signal diagnostics Multi fu...

Страница 6: ...D Separation Distance Separation Distance Separation Distance Separation Distance Reflex mode Reflex mode double bounce Reflex mode triple bounce Diagonal mode This is the mode most commonly used The...

Страница 7: ...ermined mainly by the pipe diameter and the type of transducer set in use The diagram in Figure 1 1 illustrates the importance of applying the correct separation distance between the transducers to ob...

Страница 8: ...iable pulse output proportional to the measured flow rate which can be scaled to suit a particular flow range Finally two isolated alarm outputs are provided which can be configured in a number of way...

Страница 9: ...4 20mA Pulse and Alarm I O connections The 4 20mA pulse and alarm I O cables enter the bottom of the instrument via two cable glands and are connected internally to a terminal block Full details of th...

Страница 10: ...al function keys They can be used to enter straight forward numerical data select the displayed flow units or provide quick access to frequently required control menus 1 4 3 Power supply Mains supply...

Страница 11: ...hree M4 screws see Figure 2 3 1 Remove the U3000 U4000 terminal cover 2 Fix a screw into the wall at the required point to align with the mounting keyhole on the back of the enclosure 3 Attach the enc...

Страница 12: ...0V E GND TxD RxD mA mA PULSE PULSE ALARM1 ALARM1 ALARM2 ALARM2 EXPIO 1 EXPIO 2 EXPIO 3 EXPIO 4 EXPIO 5 EXPIO 6 EXPIO 7 EXPIO 8 24V 24V 230V L 230V N 230V E FUSE 141mm 198mm M4 Screw Slot M4 Keyhole Mo...

Страница 13: ...ALARM1 ALARM1 ALARM2 and ALARM2 respectively RS232 Interface U4000 only an RS232 interface is provided to allow logged data to be downloaded to a PC or RS232 compatible printer The interface is connec...

Страница 14: ...storted by any upstream or downstream obstructions This is best achieved by ensuring there is a straight length of pipe upstream of the transducers of at least 20 times the pipe diameter and 10 times...

Страница 15: ...trasound signal strength and therefore maximum accuracy 2 3 3 Transducer attachment Figure 2 4 Transducer attachment completed assembly The type A or B transducers are fixed to the pipe using the adju...

Страница 16: ...transducer cable blue through the right hand guide rail end plate and up through the rectangular opening at the left hand side of the guide rail as shown in Figure 2 7 Note When carrying out the foll...

Страница 17: ...e mark on the ruler scale then lower the transducer onto the pipe by turning the thumb screw anti clockwise until firm contact with the pipe is made Note The correct separation distance for the partic...

Страница 18: ...nstallation routine you must carry out a minor configuration change to the newly installed virtual com port The way in which you gain access to the com port set up window will vary depending on your o...

Страница 19: ...date time Language Backlight Initial instrument setup Paragraph 3 1 Connect and take basic flow readings Paragraph 3 2 4 20mA ON OFF Paragraph 3 4 1 4 20mA Calibration Paragraph 3 4 1 Pulse ON OFF Par...

Страница 20: ...tting the date time 1 Select Setup Instrument from the MAIN MENU and press ENTER The SETUP INSTRUMENT screen should now be displayed 2 Select Set Date Time and press ENTER 3 A flashing cursor should a...

Страница 21: ...ENU then press ENTER 2 Select Change Language from the SETUP INSTRUMENT screen then press ENTER 3 Select the required language from the list provided and press ENTER 4 The instrument returns to the MA...

Страница 22: ...MENU and press ENTER You will then be presented with a series of screens in which to enter the data mentioned above 2 Select the dimension units millimetres or inches used to measure the pipe then pre...

Страница 23: ...st provided and press ENTER If the liquid is not listed select Other and enter a propagation rate in metres second Contact Micronics if this is not known 11 If you need to alter the fluid temperature...

Страница 24: ...Paragraph 2 3 3 The separation distance must be set to within 0 5mm Taking a flow reading 17 Once the transducers have been fitted and connected press the ENTER key 18 This will take you from the SEN...

Страница 25: ...the flow indication under no flow conditions 1 Stop the liquid flow 2 With the instrument in FLOW READING mode press the Velocity function key and observe the reading m s Any reading other than 0 000...

Страница 26: ...f the liquid In most situations it is not possible to inspect the pipe internally and the true condition is not known In these circumstances experience has shown that the following values can be used...

Страница 27: ...Select the value of the Damping factor as required to remove any unwanted display fluctuations Increasing the value applies a greater smoothing affect 4 Press ENTER to apply the change Key Point If t...

Страница 28: ...ut ranges to turn it ON 5 Press ENTER to return to the 4 20mA OUTPUT screen 4 20mA Signal calibration and ranging This procedure describes how to calibrate the 4 20mA output and scale it to operate ov...

Страница 29: ...want to associate with a 20 00mA output 9 Select Flow at min output and press ENTER then enter a value of the flow rate that you want to associate with a 4 00mA output This could be 0 10 Select Output...

Страница 30: ...electro mechanical counter Refer to the manufacturer s data sheet for the minimum pulse width 6 Select Exit and press ENTER to return to the FLOW READING screen How to turn the pulse output OFF ON 1...

Страница 31: ...m the FLOW READING OPTION menu and press ENTER 2 The ALARM SETTINGS screen should be displayed as shown below This screen shows two parameters Mode and Limit that can be individually set for Alarm 1 a...

Страница 32: ...be activated Pulse Frequency When Frequency is selected a variable frequency pulse proportional to the flow rate can be output at the ALARM 1 or ALARM 2 outputs When this feature is used the Max Puls...

Страница 33: ...he Options key to access the FLOW READING OPTION screen shown 2 If the Totaliser is indicating Run select it and change it to Stall Press ENTER 3 Select Reset Total and press ENTER 4 Press ENTER on th...

Страница 34: ...de the indicated total flow by the time taken This will give you the average flow in m s galls hour or whatever units you select Note that in a bi directional flow situation you must calculate the dif...

Страница 35: ...Logging interval and enter the required period e g 10 seconds 5 Select Log Totals to log either Totals Totals or Both as shown 6 Select Clear log if you want to discard any existing logging data 7 Se...

Страница 36: ...UP DOWN scroll keys The maximum values will then increase decrease as appropriate 6 To exit the VIEW LOG AS GRAPH screen and return to the REAL TIME LOGGER screen press ENTER Monitoring the logged ev...

Страница 37: ...R screen 3 Select Log data to and choose Memory This will store the log to the internal memory 4 Select Logging interval and enter the required period e g 10 seconds 5 Select Log Totals to log either...

Страница 38: ...the REAL TIME LOGGER screen 2 Select View log as text or View log as graph as required Manually stopping the auto logging session 1 The logging session will stop automatically at the programmed Stop d...

Страница 39: ...escribes how to download stored data to a PC It assumes that the U4000 is already connected to the PC s serial port and that RS232 USB communication has been established as described in Paragraph 4 6...

Страница 40: ...hing capability or exported to Microsoft Excel for more detailed graphing and analysis Portagraph II will automatically detect the unit s RS232 configuration baud rate data bits parity stop bits so th...

Страница 41: ...nting logged data 1 Select View Logged Data from the MAIN MENU This will display the VIEW LOGGED DATA screen shown 2 Select Choose from list of sites and select the site name for the log you want to p...

Страница 42: ...endently generated and output on ALARM1 or ALARM2 outputs This gives a more stable reading than the pulse packets that would normally be output 4 8 2 Connecting the U3000 U4000 to the Calec ST Energy...

Страница 43: ...alue which must be used by the Imp value on the Calec This is a non editable value 12 Select Exit and press ENTER to return to the FLOW READING screen The message Frequency Pulse is ON should now be d...

Страница 44: ...e Imp The Volume per pulse value should be the same as that indicated in the U3000 U4000 Calculated Pulse Value Both of these values can be entered using the Calec s Inputs menu Refer to the Calec s U...

Страница 45: ...aced on the sensors every 6 months especially on pipes where the application is too hot to touch If the signal level drops below 30 this is also an indication that the sensors need re greasing 5 Regul...

Страница 46: ...5 Maintenance Repair 42 U3000 U4000 User Manual Issue 2 0...

Страница 47: ...surface contact with the transducer Flaking paint should be removed Variable air gap in concrete covered pipes affecting the ultrasonic signal quality Poor internal pipe construction Rough internal pi...

Страница 48: ...the fluid type has been entered correctly the correct transducer type has been selected the pipe diameter is within specifications of the selected transducers the pipe is completely full the pipe sur...

Страница 49: ...etation You have entered an out of range value in the Zero cutoff field in the Options menu Response Enter a valid number Totaliser beyond maximum Interpretation The totaliser has overflowed its maxim...

Страница 50: ...side its accepted range when calibrating the 4mA signal output Response Re calibrate the 4 20mA output see Paragraph 3 4 1 DATA LOGGING ERRORS U4000 only ERR Log not empty Interpretation When using Qu...

Страница 51: ...m Response Enter a valid number ERR Temperature range Interpretation You have entered an out of range value for the fluid Temperature Accepted temperature range 20 C to 300 C Response Enter a valid nu...

Страница 52: ...te across the pipe It is used to see if the signal is being taken from the burst at the correct time to get the strongest signal This value is normally a few s below the calculated s value If however...

Страница 53: ...hain 7 1 4 Extended signal cable options Normally the U3000 U4000 is supplied with 3m signal cable lengths However 1m and 5m lengths are available as options If required custom signal cables with leng...

Страница 54: ...7 Options 50 U3000 U4000 User Manual Issue 2 0...

Страница 55: ...al h USgals s USgals min USgals h Barrel h Barrel day m s m min m h Selectable Volume Units litres m Total Volume 12 Digits forward and reverse APPLICABLE FLUID TYPES Fluid Condition Clean liquids or...

Страница 56: ...ble Logging Interval User programmable 5 secs to 1hr Operating Modes Logging stopped when memory full Logging continues on memory overflow with old date overwritten Logged Data Transfer Logged data ca...

Страница 57: ...Power Consumption 10 5W Alternative Input Supply 24Va c d c 1A max MECHANICAL Enclosure Material ABS and aluminium Dimensions 230mm x 180mm x 120mm Weight 1 2kg Protection IP65 Fixing Wall mountable...

Страница 58: ...3000 U4000 User Manual Issue 2 0 SHIPPING INFORMATION Box Dimensions 410mm x 205mm x 355mm Weight 7 5 kg Volumetric Weight 5 kg Micronics reserve the right to alter any specification without notificat...

Страница 59: ...U3000 U4000 User Manual 55 Issue 2 0 CE Declaration of Conformity Ultraflow U3000 and U4000 Models Ultrasonic Clamp on Flow Meter 25th January 2010...

Страница 60: ...56 U3000 U4000 User Manual Issue 2 0...

Страница 61: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...

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