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Greyline Portaflow PT400, Руководство пользователя

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Greyline Portaflow PT400 Скачать руководство пользователя страница 27

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Calculating the average flow

To calculate the average flow wait for the allotted monitoring period to expire then divide the indicated total flow
by the time taken. This will give you the average flow in m/s, galls/hours or whatever units you select.

Note that in a bi-directional flow situation you must calculate the difference between the indicated positive and
negative flow totals before carrying out the average flow rate calculation.

How to stop the totaliser temporarily

If you want to stop the totaliser temporarily for operational reasons, set the Totaliser option to Stall in the FLOW
READING OPTIONS screen as described above. This will stop the totaliser operation without affecting its current
values.

Содержание Portaflow PT400

Страница 1: ... PORTAFLOW PT400 Portable Ultrasonic Flowmeter User s Guide www greyline com ...

Страница 2: ...e instrument for the first time 16 3 1 2 Enabling disabling the backlight 17 3 2 Using the Quick Start Menu 17 3 3 Using the System at a Regularly Monitored Location 20 3 4 Managing Named Sites 22 3 4 1 Setting up a new site 22 3 4 2 Changing a site name 23 3 5 Instrument Calibration 24 3 5 1 Adjusting the zero cut off 24 3 5 2 Adjusting the set zero flow offset 24 3 5 3 Adjusting the calibration ...

Страница 3: ...t signal calibration 32 4 Maintenance Repair 33 5 Troubleshooting 34 5 1 Overview 34 5 2 General Troubleshooting Procedure 35 5 3 Warning Status Messages 36 5 4 Test Block 39 5 5 Microprocessor Reset Facility 39 5 6 Diagnostics Display 40 5 7 Applications Hotline 41 5 8 Product Return Procedure 41 5 9 Warranty 43 6 Appendix A Specifications 44 ...

Страница 4: ...he PT400 can be used with pipes in the range 13mm 115mm and the PT500 with pipes in the range 50mm 1000mm Easy to operate the Portaflow PT400 standard features are Large easy to read graphic display with backlighting Simple to follow dual function keypad Simple Quick Start set up procedure Continuous signal monitoring Pulse output 4 20mA 0 20mA or 0 16mA output Rechargeable battery Battery managem...

Страница 5: ...ignals to be received correctly This mode might be used with the standard A B transducer sets but for really large pipe installation the optional transducer set D might be recommended Upstream transducer 1 2 Principles of Operation When ultrasound is transmitted through a liquid the speed at which the sound travels through the liquid is accelerated slightly if it is transmitted in the same directi...

Страница 6: ...splay Power supply with UK US European adaptors 110 240VAC 4 20mA Pulse Output cable 2 lengths of chain each at 3 3 metres long Test block Transducer cables x2 2 metres long one red and one blue Transducer set A Transducers x2 or Transducer set B Transducers x2 Set of guide rails for use with A or B transducers Ruled separation bar 2 piece Manual Transducer Cables Test Block 4 20mA Pulse Output Ca...

Страница 7: ...ducer should always be connected to the RED socket and the downstream transducer to the BLUE one for a positive flow reading It is safe to connect or disconnect the cable while the instrument is switched on 4 20mA and Pulse output connection The 4 20mA pulse output cable should be connected to the green 7 pin connector on the top of the flowmeter as shown in Figure 1 3 A single cable that can be a...

Страница 8: ...the screen at the same time in which case the overflowed choices can be brought into view by continuing to scroll DOWN past the bottom visible item Menus generally loop around if you scroll beyond the first or last items If you select Exit it usually results in taking you back one level in the menu hierarchy but in some cases it may go directly to the Flow Reading screen Some screens require you t...

Страница 9: ... at which point there is up to four hours of battery operation remaining depending on usage The battery can be charged both while the instrument is in use or when switched off The instrument s internal data is stored in non volatile memory and will not be lost even if the battery discharges completely Key Point The battery is not a user changeable item The instrument must be returned to Greyline i...

Страница 10: ...rs can be unpredictable Key Point Do not expect to obtain accurate results if the transducers are positioned close to any obstructions that distort the uniformity of the flow profile Guide rail Air Uniform Flow Profile Distorted Flow Profile Flow Flow Possible sludge 45 20 x Diameter 10 x Diameter Valid transducer location In many applications an even flow velocity profile over a full 360 is unatt...

Страница 11: ...are the pipe by degreasing it and removing any loose material or flaking paint in order to obtain the best possible surface A smooth contact between pipe surface and the face of the transducers is an important factor in achieving a good ultrasound signal strength and therefore maximum accuracy 2 2 2 Attaching the guide rails Figure 2 2 Guide rail attachment 1 Slide the separation bar D into the fr...

Страница 12: ...assembly to allow sufficient access to fit the transducer 2 Clean the face of the transducer removing all traces of dirt and grease 3 Apply a 1 8 3mm bead of ultrasonic couplant along the centre length of the transducer E 4 Fit the transducer into the guide block ensuring the lugs on the sides of the transducer are correctly located into the slots on the sides of the guide block B 5 Slide the tran...

Страница 13: ...5 5 Set up a monitoring or logging application Paragraph 3 6 How to measure totalised flows Paragraph 3 6 1 How to set up basic manual logging Paragraph 3 6 2 How to set up auto timed logging Paragraph 3 6 3 How to set up logging live to a PC Paragraph 3 6 4 How to download saved data to a PC Paragraph 3 6 5 How to print data Paragraph 3 8 Configure the interfaces Paragraph 3 7 Battery charging Se...

Страница 14: ... language The first time you switch on the instrument you may be asked to select a user language 1 Switch on the instrument by pressing the ON OFF button 2 If necessary select the required language using the UP DOWN scroll keys then press the ENTER key 3 The selected language will be the default when the instrument is next used To change the language again select the Change Language option in the ...

Страница 15: ...the backlight is enabled it will illuminate for 15 seconds every time a key is pressed so if it is not required it is recommended that you disable it to prolong the battery discharge time 1 Select Setup Instrument from the MAIN MENU 2 Select Backlight from the SETUP INSTRUMENT screen then press ENTER SETUP INSTRUMENT DD MM YY HH MM SS Dim mm Set Date Time dd mm yy hh mm ss Calibrate 4 20mA Pulse o...

Страница 16: ... dimension then press ENTER OUTSIDE DIAMETER DD MM YY HH MM SS Dimension mm Pipe outside diameter 58 0 4 Enter the pipe wall thickness dimension then press ENTER PIPE WALL THICKNESS DD MM YY HH MM SS Dimension mm Pipe outside diameter 58 0 Pipe wall thickness 4 0 5 If the pipe has a lining enter the lining thickness If nothing is entered the instrument automatically assumes there is no lining 6 Pr...

Страница 17: ...ect fluid type Water Glycol water 50 50 Glycol water 30 70 Lubricating oil Diesel Freon Other m s 11 If you need to alter the fluid temperature from that shown select either C or F with the cursor and press the ENTER key 12 Enter the new temperature value and press the ENTER key 13 The new temperature should now be indicated in both C and F 14 Select Continue and press ENTER FLUID TEMPERATURE DD M...

Страница 18: ... Flow monitoring The FLOW READING screen is the one most used during normal monitoring operation It shows the instantaneous fluid flow together with totalised values when enabled In this mode you can select the flow rate measurement units by pressing keys 7 litres 8 Gallons or 9 m or change the display to show velocity by pressing key 4 3 3 Using the System at a Regularly Monitored Location Settin...

Страница 19: ... and the distance to set up between the sensors In this example it recommends type A ST A standard sensors operating in the Reflex mode spaced 32 2mm apart Take a note of these details SENSOR SEPARATION DD MM YY HH MM SS Site MySite Pipe 58 00 mm Wall 4 00 Sensors A ST Reflex Temperature 10 00 C 50 00 F Set sensor separation to 32 2 mm Press to continue to select sens Note If you press ENTER befor...

Страница 20: ...l required to set up the Portaflow PT400 system These can then be recalled later when revisiting that particular location The instrument can store up to 20 sites the first site is reserved for QUICK START and cannot be renamed subsequent sites are initially named EmptySite1 through to EmptySite19 3 4 1 Setting up a new site 1 Select View Edit Site Data from the MAIN MENU 2 Select Choose from list ...

Страница 21: ...t Save current site read flow to continue fitting the transducers and opening the FLOW READING screen b Select Delete this site to delete the site name and values and restore it to the original EmptySite name c Select Download save current site to save the site details and download them to a PC via RS232 USB provided the RS232 USB link is connected and correctly set up d Select Exit to return to t...

Страница 22: ...an ultrasonic signal between two transducers in either direction A Set zero flow offset adjustment is provided to compensate for any inherent differences between the two sensors noise pick up internal pipe conditions etc It can be used to zero the flow indication under no flow conditions If you have adjusted the Zero Cutoff point to anywhere above 0 you must reset it to 0 before you can observe an...

Страница 23: ...cated by the reference flow meter over the same period 3 Calculate the error between the Portaflow and reference meters If the error is greater than 1 calibrate the Portaflow as detailed below 4 Press the Options key to access the FLOW READING OPTION screen shown 5 Scroll down and select Calibration factor 6 Change the calibration factor according to the error calculated in step 3 For example if t...

Страница 24: ...ass Plastics Light metal 0 01 Drawn steel pipes Fine planed polished surface Plane surface Rough planed surface 0 01 Welded steel pipes new Long usage cleaned Lightly and evenly rusted Heavily encrusted 0 1 Cast iron pipes Bitumen lining New without lining Rusted Encrusted 1 0 ...

Страница 25: ...oth out rapid changes in flow rate to prevent wild fluctuations in the displayed flow value It has a range of 1 to 199 with a default setting of 10 With the system running in FLOW READNG mode 1 Press the Options key to access the FLOW READING OPTION screen shown 2 Scroll down and select Damping secs 3 Change the value of the Damping factor as required to remove any unwanted display fluctuations In...

Страница 26: ...he FLOW READING OPTIONS menu FLOW READING OPTION DD MM YY HH MM SS Data review Zero Cutoff m s 0 00 Set zero flow m s 0 00 Damping secs 10 Totaliser Stall Reset Total 6 Select Reset Total and press ENTER 7 Press ENTER on the subsequent screen to accept the reset 8 Press ENTER again to return to the FLOW READING OPTIONS menu 9 Note and record the current time 10 Select Totaliser and change it to Ru...

Страница 27: ...select Note that in a bi directional flow situation you must calculate the difference between the indicated positive and negative flow totals before carrying out the average flow rate calculation How to stop the totaliser temporarily If you want to stop the totaliser temporarily for operational reasons set the Totaliser option to Stall in the FLOW READING OPTIONS screen as described above This wil...

Страница 28: ...ct one of the output ranges to turn it ON 5 Press ENTER to return to the 4 20mA OUTPUT screen 4 20 mA OUTPUT DD MM YY HH MM SS Dim mm Off 4 20mA 0 20mA 0 16mA 3 7 4 4 20mA signal calibration and ranging Key Point The 4 20mA output has been calibrated in the factory and should not require further adjustment In the rare event that re calibration is necessary this procedure should be carried out only...

Страница 29: ... for the minimum output and this would enable a reverse flow to be monitored 7 With the instrument operating in the FLOW READING mode press the 4 20mA function key This will access the 4 20mA OUTPUT screen 8 Select Flow at max output and enter a value of the flow rate that you want to associate with a 20mA output 9 Select Flow at min output and enter a value of the flow rate that you want to assoc...

Страница 30: ...10 Exit 3 7 7 Pulse output signal calibration 1 With the instrument operating in the FLOW READING mode press the Pulse function key to access the PULSE OUTPUT screen 2 To change the flow measurement units select Flow units and press the required units function key 7 8 9 PULSE OUTPUT DD MM YY HH MM SS Pulse output is ON Dim mm Flow units litres Output Off Vol per pulse 10 00 Pulse width ms 10 Exit ...

Страница 31: ...grease couplant can be removed from the sensors and guide rails using an absorbent paper towel and a general purpose solvent cleaner 5 We recommend that the ultrasonic couplant is replaced 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 6 Regularly check all c...

Страница 32: ...ing good 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 pipe walls affecting fluid flow see roughness factor Internal welds positioned in the transducer signal path affecting the signal quality The drippings in galvanised dipped pipes or other irreg...

Страница 33: ...ransducer type been selected Ensure transducer separation distance correct Ensure transducers are aligned correctly Ensure pipe diameter within specifications of the selected transducers Ensure the pipe is completely full Ensure pipe surface is not corroded or protective surface loose Check for particles in the fluid Ensure temperature is set correctly Ensure transducer cables are connected correc...

Страница 34: ...nu Response Enter a valid number Damping error Interpretation You have entered an out of range value in the Damping field in the Options menu Response Enter a valid number Totaliser beyond maximum Interpretation The totaliser has overflowed its maximum count The counter will roll over and restart from zero but this message alerts you to the fact Response Reset the totaliser as described in Paragra...

Страница 35: ...he battery has discharged to below 30 remaining This leaves the instrument with approximately 4 hours remaining depending on power usage before it needs recharging Response Recharge the internal battery at the earliest opportunity Do not leave the instrument for a prolonged period with a fully discharged battery Battery Exhausted Interpretation The battery is approaching a fully discharged state a...

Страница 36: ... when setting up timed data logging the Stop time is set earlier than the Start time Response Enter a valid Date and Time Sensors INVALID Interpretation The selected temperature is higher than the maximum allowed for the sensor type Response Select alternative sensors or change the temperature Mode Err Typ Interpretation The selected sensors are invalid and the mode cannot be verified Response Sel...

Страница 37: ...hown and temporarily secure them in place using elastic bands or tape 9 Connect the sensors to the Portaflow PT400 instrument using the cables provided 10 Press ENTER to go to the FLOW READING screen 11 Select the Options key to go to the FLOW READING OPTION menu and set the Damping to at least 10 seconds 12 Select Exit and press ENTER to return to the FLOW READING menu 13 The flow reading value d...

Страница 38: ...Page 38 www greyline com hand side of the instrument to operate the internal reset switch Hold the paperclip perpendicular to the instrument while doing this ...

Страница 39: ...coustic wave to propagate 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 µs below the calculated µs value If however this value is much greater than the calculated time then there is a problem with the set up Flow m s This displays flow velocity in m sec to 3 decimal places Signal strength T...

Страница 40: ...ail to obtain an RMA number Returned Merchandise Authorization This ensures fast service and correct billing or credit When you contact Greyline please have the following information available 1 Model number Software Version 2 Serial number 3 Date of Purchase 4 Reason for return description of fault or modification required 5 Your name company name address and phone number 2 Clean the Sensor Produ...

Страница 41: ...f your invoice This warranty does not cover damages due to improper installation or handling acts of nature or unauthorized service Modifications to or tampering with any part shall void this warranty This warranty does not cover any equipment used in connection with the product or consequential damages due to a defect in the product All implied warranties are limited to the duration of this warra...

Страница 42: ...olume Units l gal USgals Barrel m Total Volume 12 Digits forward and reverse APPLICABLE FLUID TYPES Fluid Condition Clean liquids or oils that have less than 3 by volume of particulate content Applications include river water sea water potable water demineralised water glycol water mix hydraulic systems and diesel oil APPLICABLE PIPE TYPES Pipe Materials Any sonic conducting medium such as Carbon ...

Страница 43: ...width 400ms for 1 pulse sec 5ms for 100 pulses sec 150mA ELECTRICAL Supply Voltage Input Voltage Range 9 24Vdc Power Consumption 10 5W Battery Technology 5 cell NiMH Capacity 3 8AHr Operating time Typically 20 hours continuous with backlight and 4 20mA output OFF Recharge Time 6 5 Hours Service Life 400 charge discharge cycles Power Supply Charger Manufacturer ECOPAC Model ECO 181WP12 Input Voltag...

Страница 44: ...ing Angle Min 30 typically 40 ENVIRONMENTAL Operating Temperature 4 F to 122 F 20 C to 50 C Storage Temperature 13 F to 149 F 25 C to 65 C Operating Humidity 90 RH MAX at 122 F 50 C APPROVALS Safety BS EN 61010 EMC BS EN 61326 1 2006 BS EN 61326 2 3 2006 Battery Charger EN61204 3 SHIPPING INFORMATION Box Dimensions 16 15 x 8 x 14 410mm x 205mm x 355mm Weight 16 5lbs 7 5 kg Volumetric Weight 11lbs ...

Страница 45: ...Page 45 www greyline com PIPE CHARTS ...

Страница 46: ...Page 46 www greyline com ...

Страница 47: ...Page 47 www greyline com ...

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