Micronics 216 Marine Sanitation System User Manual
Contents
1. 15 Warning Messages W1 CHECK SITE DATA This message occurs when the application information has been entered incorrectly and the wrong sensors have been attached to the wrong pipe size causing the system timing to be in error The site data needs to be checked and the instrument reprogrammed W2 SIGNAL TIMING POOR Unstable signal timing or differing up down stream times indicate that the liquid is aerated or pipe surface is of poor quality W5 FLOW SIGNALS POOR This warning appears when there is a signal lower than 25 This could be due to the application a poor quality pipe amongst others W6 mA OUT OVERANGE The mA output is over range when the flow is higher than the maximum mA range Once the 4 20mA has been set up and the flow goes above the range set then this message will appear It is possible to re scale the 4 20mA to be able to cope with the higher flow W7 BATTERY LOW The battery low warning occurs when battery indication is on 40 The instrument has approximately 30 minutes usage before it needs recharging See application note at the back of this manual W8 mA LOAD TO HIGH The 4 20mA Output is designed to work with a load up to 750Q When the load is too high or not connected the above warning message will be displayed Other Messages The messages below appear mainly when data has been incorrectly entered or the Portaflow 216 is trying to be used on an application that it is not capable of working on P2. Simple FAST TRACK set up procedure Simple to follow keypad IP55 electronics enclosure Guide rail assembly with chains Pulse Output or 4 20mA optional 10hr Battery rechargeable Self checking diagnostics Continuous signal monitoring The instrument displays volumetric flow rate in m hr m min m sec g min US g min US g hr l min l sec and linear velocity in metres and feet per second The display shows the total volume both positive and negative with up to a maximum of 12 digits The following simple guide will enable the user to quickly set up the flow meter to measure flow Additional data on the facilities available and many useful hints are also contained in this manual Fast Track Set up Procedure Switch on and press ENTER Select Quick Start Press ENTER Dimension Units Scroll to select units required press ENTER Pipe OD Enter data press ENTER Pipe Wall Thickness Enter data press ENTER Pipe Lining Thickness Enter data press ENTER ENTER Zero if there is no lining on the application Select Wall Material Select using scroll keys press ENTER Select Lining Material This will only be displayed if a lining thickness has been entered Select using the scroll keys press ENTER Select Fluid Type Select using scroll keys press ENTER The instrument selects the mode of operation using the data entered and will display the following Attach sensor set in XXXX mode Approx
3. 0 5 with unchanged transducer position ACCURACY IP55 ABS lt 1 5 Kg 235 x 125 x 42 mm Graphics LCD display 16 Key Tactile Membrane IP65 Lemo Connectors 0 C to 50 C operating 10 to 60 C storage 100 240 VAC 10 50 60 Hz 9 Watts 9VDC Regulated 8hrs Operating Time 15 hrs Charge Time Low Battery Indication m litres gallons Imperial and US metres sec feet sec 0 3 12 m sec to 4 significant figures 12 Digits Forward and Reverse User Definable Scaling 0 1 of full scale Velocity Range Reflex Diagonal Mode 0 3 m sec 6 m sec 12 m sec 20 C to 125 C 1 3 of reading within velocity range or 0 3 m sec and under ideal flowing conditions and on a 4 plastic pipe Micronics cannot guarantee the performance of the Portaflow 216 unless ideal conditions are achieved Specification assumes turbulent flow profile with Reynolds numbers above 4000 PIPE MATERIALS Any sonic conducting medium such as Carbon Steel Stainless Steel Copper UPVC PVDF Concrete Galvanised Steel Mild Steel Glass Brass Including Lined Pipes Epoxy Rubber Steel Plastic Micronics reserve the right to alter any specification without notification 22 Figure 15 PORTAFLOW 216 Flow Range 200 150 100 19 ME IET 50 25 007 0 10 013 022 029 032 042 59 8 2 1L40 1476 23 94 30 90 fps 0 02 0 00 0 04 0 07 0 09 0 10 0 13 18 25 3 5 4 5 7 3 9 4 mps PORTAFLOW 216 FLOW RANGE DIAGONAL M
4. CHN NH C H 0 Ar CHN Bry C HsBr C HoBr C H3Br CHBr C4Hio C H O C H O C HoBr C H Cl C H Cl C5H40 C4H 902 Cd CH O CoH 403 CO CS CCl CF Ci6H34 C H Cl C4H4CI CHCIF CHCI C3H Cl CCIF CHO CHO C H NO C H 0 C H 0 C H4N C H 45 25 1 082 20 C 1 082 20 C 0 783 0 901 0 934 0 791 0 783 0 729 1 26 2 966 1 595 0 789 0 86 1 20 1 018 0 999 20 C 0 966 45 C 0 771 0 98 0 81 1 022 1 022 1 400 188 C 0 982 0 879 0 879 2 928 1 522 1 276 20 C 1 460 20 C 2 89 20 C 0 601 0 C 0 81 0 81 1 276 20 C 0 887 0 84 1 019 0 791 20 C 0 988 1 101 37 C 1 261 22 C 1 595 20 C 1 75 150 C 0 773 20 C 1 106 0 887 1 491 69 C 1 489 0 892 1 112 1 112 1 018 1 047 20 C 1 034 20 C 0 783 0 779 20 C 1180 1180 1290 1085 1211 1174 1290 1399 1015 1027 1147 1207 1317 1307 1724 1618 1480 1729 962 6 1204 1639 1639 853 1415 1306 1306 889 1170 1019 900 918 1085 1240 1240 1019 1140 984 1404 1484 2237 7 1076 1458 839 1149 926 875 2 1338 1273 1140 893 9 1058 724 1554 1554 1724 1541 1500 1290 1248 Form Index Specific Gravity Sound Speed Avi C m s C 6 68 4 0 4 0 4 1 4 65 4 65 3 0 Cyclohexanol Cyclohexanone Decane 46 1 Decene 27 n Decylene 27 Diacetyl Diamylamine 1 2 Dibromo ethane 47 trans 1 2 Dibromoethene 47 Dibutyl phthalate Dichloro t buty
5. Calibration Factor If for any reason the instrument goes out of calibration and the readings may be higher or lower than normal then this facility enables the user to correct the reading If for example the reading is 4 higher than normal then entering 0 96 will reduce the reading by 4 If the reading is 4 lower than normal then entering 1 04 would increase the reading by 4 When the instrument is supplied it will always default to 1 00 and when this is changed it will stay in the memory to whatever it has been changed to until such time as it needs to be changed again Correction Factor This is a facility that can be used when errors occur due to lack of straight pipe or the sensors have been placed too close to a bend this could give an incorrect reading to what is expected The user can set this as a in the same way as the calibration factor but it will not be stored in the memory Diagnostics Calculated us This is a value the instrument predicts will be the time in secs that it should take for the transmitted signal to go across a particular pipe size This value is ascertained from the data entered by the user i e Pipe size material sensor set etc Up ps Dn ps This is the actual transit time measured by the instrument and will be slightly 5 10us depending on the pipe size and signal condition less than the calculated value above Measurement us A point in the signal transmitted where the flow measurement is taken from
6. Select fluid type Water Glycol water 50 50 Lubricating oil Diesel oil Freon Other m sec Attach Sensors The instrument will now provide the user with details of the mode of operation It will also give the approximate maximum velocity that can be achieved with the sensors provided Use the keypad to check the other maximum volumetric flow Connect the RED and BLUE sensor cables between the guide rail and the electronics Attach sensors in REFLEX mode Approx max flow 7 20 m s ENTER to continue SCROLL changes mode Select Enter and the display will now show Fluid temp CC Enter the application temperature and press Enter The display will now show the sensor seperation distance Adjust the moveable sensor to the required distance Press ENTER to read flow Set sensor Separation to XXX ENTER to continue READ FLOW now appears on the display Batt CHRG Sig 48 ERROR MESSAGES APPEAR HERE When reading volumetric flow the instrument will display a positive and negative total Selecting OPTIONS from the keypad can reset these totals See page 14 The instrument will continually display the battery and signal levels Signal levels should be above 40 If there is an error with the site data entered or the application the instrument will display an Error or warning message See page 15 17 which will appear above the flow reading If there is more than one message it will scroll between the
7. giving about 0 4A or 0 8A fast charge current PF 300 and UFM610P Battery Capacity 3 5Ah or 4 0Ah after Oct 2000 Current 0 4A before 0 8A after Dec 2000 PF SE and 216 Battery Capacity 1 2Ah Current 0 4A Software The fast charge status output is not used by the present software ver 3 06 in a future software update a message will be added indicating charging status 30 Quicker full charge The fastest way to fully charge the battery is to charge for 4 5 hrs then switch the power supply off and on again thus re starting the fast charge for another 4 5 hr period followed by trickle charge Warning If the battery is getting warm that would indicate that it is full and the power supply should not be connected again overcharging reduces the life of the battery Note After a recently fully charged battery is connected to the charger it seems that it takes the MAX712 about 30 min to sense that the battery voltage stops changing and go to trickle charge Examples Older PF 300 A 15 hour charge consists of 4 5 hrs of fast charge 400mA followed by 10 5 hrs of trickle charge 50mA 4 5 0 4 10 5 0 05 2 325Ah 3 5Ah 0 66 which fills the battery to 66 of capacity 3 5Ah To fill the remaining 34 at 50mA takes 3 5 0 34 0 05 23 8hrs 15hrs 39hrs to 100 Assuming 20 losses 3 5Ah 20 SOmA 0 7Ah 0 05A 14hrs of trickle charge to cover losses 39hrs 53hrs total In fact it needs 9hrs 0 4A 3 6A
8. It is used to see if the signal is being taken from the burst at the correct time to get the strongest signal It is normally used on smaller pipes when the instrument is being used in double or triple bounce as signals can sometimes interfere with each other This value is normally a few us below the Up ps Dn ps value Phase up dn us Only valid if Calculated us and Up ps Dn ps are correct If the reading is zero then there is no signal which could mean the pipe is empty or the liquid is contaminated with particles or air Phase offset This value will be between 0 and 15 The exact value is not important and will vary between applications It should however be stable when the flow condition is good and velocity is within the range of the transducers being used As the flow rate increases towards and beyond the maximum this figure will continuously change In flow mode the instrument will read unstable or high flow Flow m s This displays flow velocity in m sec to 3 decimal places Signal This is the average value of Signal up dn and is a value between 800 and 2400 which Display s the signal strength as a percentage 800 096 2400 86 Signal up dn This value is internal to the electronics and must be greater than 800 There is an option in the SET UP INSTRUMENT menu to allow this value to be taken down to 400 in extreme circumstances and is useful on some applications when the signal levels are poor Sensor separation This is a
9. The instrument will have to be reprogrammed if it is to be used on a new application KEYPAD OPTIONS The output options can only be adjusted operated in flow mode Exit Delete Key If anything is entered in error press the DELETE key and re enter the information required Options Key This can only be used in flow mode Scroll down the options then press ENTER to select OPTIONS Cutoff m s Set zero Total Reset total Reset total Damping sec Cal Factor Corr Factor Diagnostics Exit Cut Off m s The instrument has an automatic CUTOFF that is calculated to 0 05 m s The maximum flow is calculated when the instrument is programmed and is displayed when sensor set and mode of operation are displayed See page 9 Read Flow Attach sensors Micronics cannot guarantee measuring flows below this range because of instabilities in measuring system but it is possible for the user to cancel any cut off altogether Reducing the cutoff to Zero allows the user to see or record any flow that they may not want For example it may be that the user may not want to measure flows below 50 LPM in a 50mm pipe that is equivalent to 0 42 m sec in which case 0 42 m sec would be entered into the instrument and nothing would be recorded below that level The maximum cut off is 1 m sec 13 Set Zero Flow On some applications and in some conditions it may be that although there is no flow the instrument may show a small offset due
10. max flow XXX m s Press ENTER to continue Or SCROLL to change mode Fluid Temp Press Enter to Input the application temperature in the units required C or F then press ENTER Now retract the sensor blocks back into the guide rail by turning the locking nuts clockwise Apply grease to both sensor blocks as shown in Figure 1 attach to the pipe using the appropriate mounting hardware in either Reflex or Diagonal Mode Ensure the Guide rail itself is free of grease Figure 1 Inverted view of grease applied to sensor block Connect the red and blue sensor cables to the electronics and the guide rail assembly The RED cable must be positioned upstream to give a positive flow reading Figure 2 Sensor assembly For Reflex Mode attach the guide rail Figure 3 to the pipe as shown below Turn the locking nut on the fixed transducer anti clockwise screwing it down on to the pipe surface Do not over tighten causing the guide rail to lift off the pipe Set the separation distance Figure 3 by sliding the floating transducer along the scale until the front edge of the block is at the recommended distance displayed by the electronics Now turn the locking nuts on both the floating and the fixed transducers anti clockwise until they make finger tight contact with the pipe surface To mount the transducers in Diagonal Mode Figure 4 and the instructions on pages 20 21 of this manual Now Press ENTER to read flow Pressing the appropri
11. 0 948 13 594 0 85 0 162 0 791 20 C 0 934 0 999 20 C 0 966 45 C 0 791 20 C 0 867 0 62 20 C 0 789 1 33 0 783 0 92 1 327 3 235 0 974 20 C 2 28 20 C 1 090 1189 1127 1622 1622 774 2 1444 1450 1444 1444 1444 1450 2870 30 C 1904 1904 1658 183 1131 1180 1150 1338 1454 1112 1079 1399 1300 1248 1454 1248 1187 1541 1500 1114 876 978 1180 1212 1219 8 980 1170 1170 1324 1423 2485 1449 1310 405 89 15 C 1076 1211 1618 1480 1076 1328 980 1207 985 1290 1400 1070 980 1127 978 1510 4 02 2 2 4 85 4 8 3 6 1 29 17 5 2 92 2 92 4 27 4 0 3 94 4 02 3 7 2 Methylphenol 46 3 Methylphenol 46 Milk homogenized Morpholine Naphtha Natural Gas 37 Neon 45 Nitrobenzene 46 Nitrogen 45 Nitromethane 43 Nonane 23 1 Nonene 27 Octane 23 n Octane 29 1 Octene 27 Oil of Camphor Sassafrassy Oil Car SAE 20a 30 Oil Castor Oil Diesel Oil Fuel AA gravity Oil Lubricating X200 Oil Olive Oil Peanut Oil Sperm Oil 6 2 2 Oxydiethanol Oxygen 45 Pentachloro ethane 47 Pentalin 47 Pentane 36 n Pentane 47 Perchlorocyclopentadiene 47 Perchloro ethylene 47 Perfluoro 1 Hepten 47 Perfluoro n Hexane 47 Phene 29 40 41 B Phenyl acrolein Phenylamine 41 Phenyl bromide 46 Phenyl chloride Phenyl iodide 46 Phenyl methane 16 52 3 Phenyl propenal Phthalardione Phthalic acid anhydrid
12. 00 If the value has a minus sign in front of it then do the opposite of above Distilled Water at 50 C 1498 2 4 x 25 1558 Distilled Water at 10 C 1498 2 4 x 15 1462 24 Substance Acetic anhydride 22 Acetic acid anhydride 22 Acetic acid nitrile Acetic acid ethyl ester 33 Acetic acid methyl ester Acetone Acetonitrile Acetonylacetone Acetylene dichloride Acetylene tetrabromide 47 Acetylene tetrachloride 47 Alcohol Alkazene 13 Alkazene 25 2 Amino ethanol 2 Aminotolidine 46 4 Aminotolidine 46 Ammonia 35 Amorphous Polyolefin t Amyl alcohol Aminobenzene 41 Aniline 41 Argon 45 Azine Benzene 29 40 41 Benzol 29 40 41 Bromine 21 Bromo benzene 46 1 Bromo butane 46 Bromo ethane 46 Bromoform 46 47 n Butane 2 2 Butanol sec Butylalcohol n Butyl bromide 46 n Butyl chloride 22 46 tert Butyl chloride Butyl oleate 2 3 Butylene glycol Cadmium 7 Carbinol 40 41 Carbitol Carbon dioxide 26 Carbon disulphide Carbon tetrachloride 33 35 47 Carbon tetrafluoride 14 Cetane 23 Chloro benezene 1 Chloro butane 22 46 Chloro diFluoromethane 3 Freon 22 Chloroform 47 1 Chloro propane 47 Chlorotrifluoromethane 5 Cinnamaldehyde Cinnamic aldehyde Colamine o Cresol 46 m Cresol 46 Cyanomethane Cyclohexane 15 CH CO O CH3CO O CHN C4H40 C3H40 C4H40 CHN C6H1002 C H5Cp C H5Br C H Cl4 C H O CisHo4 CoH 5C CHNO C HN
13. A battery management circuit controls the battery recharge The circuit helps to prevent the batteries from being damaged through overcharging The circuit automatically cuts off the high level charge current after 4hrs after which it will provide only a trickle charge In operating mode a fully charged battery can maintain functionality for up to 8hrs depending upon the demand A large percentage of the demand taken by the Backlighting and whilst it is continuously enabled the operating life will drop to 4hrs from a fully charged battery When in flow measurement mode the battery charge level is continually displayed as a percentage of full charge When this indication reads approximately 40 a warning message will appear on the screen This indicates that there is only 30 minutes use left in the battery The battery can be charged when the instrument is switched to the ON or OFF state See full instructions on charging and discharging the batteries on page 30 31 Keypad Programming is via a key tactile membrane keypad When measuring flow it is possible by selecting keys 4 7 8 and 9 to change from one unit to another without the need to re program Additional key presses will adjust the time scale of the measurements Example e Press 4 for m s press 4 again for f s e Press 7 for l s press 7 again for l min e Press 8 for g min press 8 again for USG min e Press 9 for m hr press 9 again for m min press 9 again for m sec There
14. C H N CH3CO O0 C H O C H NO C4H 90 C4H40 C H O C H 10 C H3Br CHI C4H0 C4H0 C H Br C H4CL C2H602 CioH160 CioH160 F 26 0 962 0 948 0 730 0 746 0 746 0 99 2 18 2 231 1 516 40 C 1 253 1 284 1 257 1 426 0 C 1 654 1 14 1 327 1 455 0 713 0 988 1 00 1 216 1 213 1 265 1 254 1 116 1 113 0 868 15 C 0 897 20 C 0 649 20 C 0 791 0 674 1 2 3 235 1 033 0 749 1 113 0 783 1 082 0 789 1 018 0 713 0 901 0 789 0 867 20 C 1 461 20 C 1 950 20 C 0 713 0 713 2 18 1 253 1 113 0 947 0 947 0 545 143 C 1454 1423 1252 1235 1235 1236 1256 995 935 1408 1304 1391 774 1 1193 1061 1010 891 669 1220 1070 665 3 985 1458 1442 1000 900 960 890 1586 1658 1343 1331 5 1334 1079 1174 1063 1463 1376 1279 1658 1290 1180 1207 1724 985 1085 1207 1338 900 876 985 985 995 1193 1658 1578 1320 1320 403 3 97 3 4 3 94 3 73 4 87 3 8 2 4 2 1 4I 4 5 4 87 4 87 2 1 11 31 Fluoro benzene 46 Formaldehyde methyl ester Formamide Formic acid amide Freon R12 Furfural Furfuryl alcohol Fural 2 Furaldehyde 2 Furancarboxaldehyde 2 Furyl Methanol Gallium Glycerin Glycerol Glycol Helium 45 Heptane 22 23 n Heptane 29 33 Hexachloro Cyclopentadiene 47 Hexadecane 23 Hexalin Hexane 16 22 23 n Hexane 29 33 2 5 Hexanedione n Hexanol Hexahydrobenzene 15 Hexahydrophenol Hexam
15. F CCIF CioH 160 C Hs NO5 H O D O CH O Xe CsHio CsHio CsHio CHF Zn 29 0 563 13 C 0 982 1 49 1 516 40 C 1 75 150 C 1 426 0 C 1 491 69 C 1 563 1 455 1 62 20 C 0 993 0 877 1 884 336 C 1 805 292 C 0 877 0 789 1 841 2 966 1 595 1 553 20 C 1 632 1 595 20 C 0 763 20 C 1 123 1 75 150 C 0 867 20 C 0 999 20 C 0 966 45 C 0 866 2 89 20 C 1 33 1 464 1 49 1 489 1 563 0 726 1 123 1 869 1 563 0 947 1 64 0 88 0 87 0 996 1 025 0 791 20 C 0 868 15 C 0 897 20 C 1 37 963 1415 828 3 774 1 875 24 891 893 9 783 7 665 3 656 4 574 1072 990 2082 1763 3 1876 8 1370 1207 1177 1257 6 991 1027 1147 1170 1036 926 1331 1586 5203 4 875 24 1442 1328 1618 1480 1308 918 985 1028 828 3 979 783 7 1123 1608 693 783 7 1320 1610 1255 1346 1498 1400 1531 1076 630 1343 1331 5 1334 879 3298 6 32 3 56 4 24 6 61 3 97 4 79 3 44 3 73 4 42 3 88 0 68 1 32 0 74 3 7 1 13 1 43 0 73 3 0 6 61 4 27 4 2 3 56 3 4 4 47 3 8 344 2 4 2 92 4 1 PORTAFLOW 216 Battery Charge circuit Operation Charging Controller IC A Maxim IC MAX712 or MAX713 controls the Ni Cd and Ni Mh battery charger It has two modes fast charge and trickle charge an output indicates the fast charge status In both modes it supplies via a PNP power transistor a constant current to the batter
16. ODE PORTAFLOW 216 FLOW RANGE REFLEX MODE Jimmii WARRANTY The material and workmanship of the PORTAFLOW 216 is guaranteed by MICRONICS LTD for one year from the date of purchase provided the equipment has been used for the purpose for which it has been designed and operated in accordance with the operating manual supplied Misuse by the purchaser or any other person will immediately revoke any warranty given or implied Repair or replacement will be at MICRONICS discretion and will be made without charge at MICRONICS plant during the warranty period MICRONICS LTD reserve the right without prior notice to discontinue manufacture redesign or modify any of its products Your statutory right are not affected by this warranty If any problems develop customers are requested to t ike the following steps Notify MICRONICS LTD or the Distributor Agent from whom the flowmeter was purchased giving details of the problem Be sure to include the Model amp Serial Number of the instrument When returning the product to the factory carefully package and ship freight prepaid Be sure to include a complete description of the application and problem and identify any hazardous material used with the product The Warranty of the PORTAFLOW is strictly in accordance with that stated above and cannot in any way be extended CE MARKING The PORTAFLOW 216 has been tested and found to conform to EN50081 1 Emission Standards and EN50082 1 Immunity Stand
17. PORTAH OW 216 Flowmeter Operating Manual Micronics Ltd Knaves Beech Business Centre Davies Way Loudwater High Wycombe Bucks HP10 9QR TEL 44 0 1628 810456 FAX 44 0 1628 531540 e mail sales micronicsltd co uk www micronicsltd co uk Publication March 2001 Document Number 740 1001D Software Version 1 00 CONTENTS Page No Introduction 2 Fast track procedure 3 4 Parts and accessories 4 Battery and Charger 5 Transducers Separation Distance Fluid Types 6 Programming Main Menu 6 Main Menu Quick Start 6 9 Main Menu View Edit site data 9 10 Main Menu Select sensor mode 11 Main Menu Set up Instrument 12 Pulse output Display Signal Enhancement 12 Keypad Options 13 Cutoff m s 13 Set zero flow 14 Total Volume reset 14 Damping time Correction Factor 14 Calibration Factor 14 Diagnostics 14 15 Status Error Warning messages 15 16 Application Information 17 Transducer positioning 18 Mounting transducers 18 19 Reynolds Number 19 20 Diagonal Mode Setup 20 21 Specification 22 Diagonal Mode setup 22 23 Flow Range 23 Sound Speeds 24 Liquid sound speeds 25 29 Battery charge circuit operation 30 31 INTRODUCTION The PORTAFLOW 216 is a portable flow meter designed by Micronics for use on liquid flows in full pipes which utilises Ultrasonic transit time Clamp On transducer technology Easy to operate the Portaflow 216 features are as follows Large easy to read Graphics Display with backlighting
18. Site number allows the user to enter the number of the site data that you wish to be displayed If the site has not been used then no data would be stored You can now enter new application data Site Name Site name allows the user to edit or enter a site name Use the scroll keys to move the cursor to the letter figure required and press ENTER to select Press zero to return the instrument to VIEW EDIT SITE DATA The new site name will appear on the display SCROLL amp ENTER select for space 0 to end abcdefghijklmnopqr stuvwxyz01234567890 Dimension Units Dimension units allow the user to switch between millimetres and inches The electronics converts all the application data in a particular site Pipe wall lining thickness and Pipe wall lining material can now be changed as required Lining material is ignored if a lining thickness has not been entered A selection of pipe wall lining materials will be displayed when these options are selected Fluid type Fluid type allows the user to scroll through a selection of fluid types Select OTHER in the menu if a liquid is not mentioned Select fluid type When Other m s is selected the user must enter the liquid sound speed in m s This can be supplied by Micronics or found in the back of the manual under Liquid Sound Speeds 10 Read Flow Selecting Read flow informs the user of the mode of operation and the approximate maximum flow rate Press the appropriate key can change the u
19. ards The tests were conducted by AQL EMC Ltd of 16 Cobham Road Ferndown Industrial Estate Wimborne U K BH21 7PG The unit was tested with all cables as supplied of a maximum length of 3m While the operation of the unit may not be affected by the use of longer cables MICRONICS can make no statement about conformance to the above standards when these cables are in use The PORTAFLOW 216 is supplied with an external battery charging unit This unit is manufactured by Frieman amp Wolf Geratebau GmbH P O Box 1164 D 48342 Ostbevan Germany who have CE marked the equipment MICRONICS have purchased this equipment on the understanding that the manufacturers have tested the unit to the relevant standards prior to CE marking the product MICRONICS have not tested the charger unit and cannot accept responsibility for any non conformance from the relevant standards 23 LIQUID SOUND SPEEDS Liquid Sound Speeds Note All the following sound speeds are calculated at 25 C The speed of sound in liquids at temperatures other than 25 C are calculated as follows Example Substance Form Index Specific Sound Av C Gravity Speed m s C Glycol 1 113 1658 Water distilled 49 50 H O 0 996 1498 For every 1 C higher than 25 C take off the value in the Av C m s C column Glycol at 50 C 1658 2 1 x 25 1605 5 For every 1 C less than 25 C add on the value in the Av C m s C column Glycol at 5 C 1658 2 1 x 20 17
20. are some facilities that require the cursor to be moved from left to right This can be done using keys 5 left and 6 right The pulse output can only be activated in the flow mode see page 12 Pulse output key 4 20mA 216 3 amp 216 2 only Transducers The Portaflow 216 is supplied with one matched pair of transducers and a single guiderail to measure flow The instrument selects the mode of operation Reflex or Diagonal dependant on the pipe size and flow velocity The instrument can be used over a range from 50mm to 400mm In Reflex Mode the transducers are positioned in the guide rail to assist correct alignment along the pipe axis Figure 3 In Diagonal mode Figure 4 the transducers are removed from the rail and attached to the pipe using the gull wings and chains The pipe is then measured and marked up and the transducer blocks are clipped to the pipe wall using a suitable amount of grease applied to the face of each transducer Separation Distance The instrument calculates the separation distance when all parameters have been entered via the keypad Also the instrument calculates the maximum flow velocity allowed with the standard sensors and indicates whether Reflex or Diagonal mode should be used Ultrasonic Couplant Ultrasonic couplant grease must be used on the transducer face to interface with the pipe wall Fluid Types Portaflow 216 is capable of measuring clean liquids or oils that have less than 2 by volume of parti
21. ate key on the keypad can change flow units An additional key press will change the timescale of the reading hr min sec Figure 3 Reflex Mode Operation gt Separation Distance Figure 4 Diagonal Mode Operation Separation Distance For Diagonal beam mounting follow the sensor mounting instructions on pages 20 and 21 of this manual PARTS AND ACCESSORIES Connectors There are four sockets on the electronic housing Two for the transducer cable assemblies Blue down Red up one for the pulse output one for the PSU charger unit and one for the optional 4 20mA output Please specify 4 20mA output in your order so that it can be configured prior to dispatch Pulse Cable Connections Pulse output Centre White positive Screen Silver negative 4 20 mA Output connections optional only added to software versions 216 3 amp 216 2 Charger Use only the charger supplied The charger is supplied with universal plug in adaptors When the instrument is charging but switched off the display reads CHARGING It also displays a battery and plug symbol CHRG is displayed next to the word Batt when in flow mode and the battery charger is connected When the battery charger is disconnected the display will show a 96 battery level in the flow mode Figure 5 Battery mains charger Is supplied with additional plug heads for use Worldwide The charger is rated 90Vac to 265Vac 47 63mhz 1 1A Battery Circuit
22. culate content and air bubbles During the set up procedure the user is prompted to select from a list of liquids which include water and oils Applications include river water seawater potable water demin water treated water effluent water glycol mixes hydraulic oil diesel oil and most chemicals PROGRAMING MAIN MENU Switch On Micronics Ltd PORTAR OW 216 X V1 00 1 for English Press Enter to start X Option number for the software Main Menu Press SCROLL up or down to move cursor to the required option and press ENTER to select MAIN MENU Quick start View Edit Site Data Sensor set Data Logger Set up RS232 Set up Instrument Read flow Main Menu Quick Start Selecting quick start offers the user the easiest and quickest option to achieve a flow measurement If the instrument has already been used it stores the last application data entered This allows the user to read flow on the same application without spending time entering new data Go to Read Flow in the main menu If QUICK START is selected proceed with the following routine Use the scroll keys to select then press ENTER QUICK START Dimension units mm Inches The instrument now asks for the Pipe outside diameter After entering the outside diameter in millimeters press ENTER QUICK START Dimension units Pipe O D Pipe wall thickness now appears on the display Enter the pipe wall thickness in millimeters then p
23. d the maximum flow capable Should the actual flow be higher than the one specified on the instrument another mode of operation can be selected Selecting EXIT will take you back to MAIN MENU Main Menu Set Up Instrument Pulse Output Key This can only be operated in flow mode Use the scroll key to move the cursor up or down the display To change the flow units press the key required This will also change the flow units when returning to the flow mode Changing the flow units will also re scale the litres per pulse PULSE OUTPUT Flow units Output OFF Max pulse ratel per sec Litres per pulse12 76 Exit Outputs allow the user to select from the following Selecting Off switches the pulse off and returns to the PULSE OUTPUT display Selecting the Forward total counts the pulses of the forward flow only Selecting Net total counts the pulses of the sum of the forward total less the reverse total OUTPUT Off Forward total Net total Max Pulse Rate This option allows the user to select between fast slow pulses or large small pulse width Select 1 per second for slow pulses and 100 for a fast pulse The pulse width for 1 per second is 100ms and 5ms for 100 per second XXXX per pulse This will change when the flow units are changed above When the correct flow units are selected this allows the user to scale the pulses to there own requirements or it can be left in the default setting Display backlight Use the
24. e Phthalic anhydride Pimelic ketone Plexiglas Lucite Acrylic Polyterpene Resin Potassium bromide 42 Potassium fluoride 42 Potassium iodide 42 Potassium nitrate 48 Propane 2 13 45 to 130 C 1 2 3 Propanetriol Propanol 46 2 Propanol 46 2 Propanone Propene 17 18 35 n Propyl acetate 22 n Propyl alcohol Propylchloride 47 C H O C H O C4H9NO Ne C H NO CH NO C H O CoH ig CgH ig CgH ig CgH 6 1 74 Cii HioOio C4H1903 O5 CHCl CHCl C5H C5H 5 CsCl C Cl CF i4 CoF 14 C6H6 CHO C amp H5NO C amp H3Br C amp H5CI C amp HI C Hg CHO CsH O3 CsH O3 CsH O3 C amp 4H4 0 Kbr KF KI KNO C4Hg CH0 CHO CHO C3H O C4Hg C5H190 CHO C3H Cl 28 1 047 20 C 1 034 20 C 1 00 0 76 0 316 103 C 1 207 246 C 1 204 20 C 0 808 199 C 1 135 0 718 20 C 0 736 20 C 0 703 0 704 20 C 0 723 20 C 0 969 0 80 0 99 0 912 0 936 0 88 1 116 1 155 186 C 1 687 1 687 0 626 20 C 0 557 1 718 1 632 1 67 1 672 0 879 1 112 1 022 1 522 1 106 1 823 0 867 20 C 1 112 0 948 0 77 1 859 352 C 0 585 45 C 1 26 0 78 20 C 0 785 20 C 0 791 0 563 13 C 1280 2 C 0 78 20 C 0 892 1541 1500 1548 1442 1225 3 8 4 0 4 04 4 14 3 50 4 10 3 8 3 6 3 7 5019 9 2 75 2 4 4 65 3 2 4 0 3 6 4 27 3 2 Propylene 17 18 35 Pyridine Refrigerant 11 3 4 Refrigerant 12 3 Refri
25. ethylene 15 Hydrogen 45 2 Hydroxy toluene 46 3 Hydroxy tolune 46 Iodo benzene 46 Iodo ethane 46 Iodo methane Isobutyl acetate 22 Isobutanol Iso Butane Isopentane 36 Isopropanol 46 Isopropyl alcohol 46 Kerosene Ketohexamethylene Lithium fluoride 42 Mercury 45 Mesityloxide Methane 25 28 38 39 Methanol 40 41 Methyl acetate o Methylaniline 46 4 Methylaniline 46 Methyl alcohol 40 44 Methyl benzene 16 52 2 Methyl butane 36 Methyl carbinol Methyl chloroform 47 Methyl cyanide 3 Methyl cyclohexanol Methylene chloride 3 Methylene iodide Methyl formate 22 Methyl iodide a Methyl naphthalene CHF C H40 CHNO CHNO C5H40 C5H4 0 C5H4O0 C5H40 C5H40 C5H4 0 Ga C5H304 C5H304 C H 0 He4 C Hig C Hig C5Clg C 16H34 C amp H 0 CHa CH 14 C6H1002 C amp H 4O C H 5 C H 2 0 CeHi2 H2 C H 0O C H 0O CHI CHI CHI C amp H 0 C4H0 CsHi2 C H O C H O CH0 LiF Hg CH0 CH CH O C4H40 CHN CHN CH O C H CsHi2 CjH 0 CjH4N C Hij0 CHI CjH40 CHjI Cio 27 1 024 20 C 0 974 1 134 20 C 1 134 20 C 1 157 1 135 1 157 1 157 1 157 1 135 6 095 1 26 1 26 1 113 0 125 268 8 C 0 684 20 C 0 684 20 C 1 7180 0 773 20 C 0 962 0 659 0 649 20 C 0 729 0 819 0 779 0 962 0 779 0 071 256 C 1 047 20 C 1 034 20 C 1 823 1 950 20 C 2 28 20 C 0 81 20 C 0 62 20 C 0 785 20 C 0 785 20 C 0 81
26. gerant 14 14 Refrigerant 21 3 Refrigerant 22 3 Refrigerant 113 3 Refrigerant 114 3 Refrigerant 115 3 Refrigerant C318 3 Selenium 8 Silicone 30 cp Sodium fluoride 42 Sodium nitrate 48 Sodium nitrite 48 Solvesso 3 Spirit of wine Sulphur 7 8 10 Sulphuric acid 1 Tellurium 7 1 1 2 2 Tetrabromo ethane 47 1 1 2 2 Tetrachloro ethane 67 Tetrachloroethane 46 Tetrachloro ethene 47 Tetrachloro methane 33 47 Tetradecane 46 Tetraethylene glycol Tetrafluoro methane 14 Freon 14 Tetrahydro 1 4 isoxazine Toluene 16 52 o Toluidine 46 p Toluidine 46 Toluol Tribromo methane 46 47 1 1 1 Trichloro ethane 47 Trichloro ethene 47 Trichloro fluoromethane 3 Freon 11 Trichloro methane 47 1 1 2 Trichloro 1 2 2 Trifluoro Ethane Triethyl amine 33 Triethylene glycol 1 1 1 Trifluoro 2 Chloro 2 Bromo Ethane 1 2 2 Trifluorotrichloro ethane Freon 113 d 1 3 3 Trimethylnor camphor Trinitrotoluene 43 Turpentine Unisis 800 Water distilled 49 50 Water heavy Water sea Wood Alcohol 40 41 Xenon 45 m Xylene 46 o Xylene 29 46 p Xylene 46 Xylene hexafluoride Zinc 7 C4Hg C H N CCIF CCIF CF CHCLF CHCIF CCLF CCIF CCIF CCIF C5CIF C4Fg Se NaF NaNO NaNO C H O S HS0 Te C H Br4 C H Cl4 C H Cl4 CCl CCl C 4H 0 CgH 05 CF CHNO C Hg C7H oN C7HoN C Hs CHBr CHCl CCHhF CHCl CCI1 F CCIF C6H 404 C HCIBrF CCL
27. h to fill the battery from empty to 103 full capacity Assuming 20 losses 3 5Ah 20 0 1 SOmA 0 6Ah 0 05A 12hrs of trickle charge to cover losses 9hrs 2 1hrs total A third session of fast charge would fill the last 17 in 3 5Ah 17 0 4A 1 5hrs 10 5hrs total Newer PF 300 4 5hrs fast 0 8A 4 5h 3 6Ah 90 of 4 0Ah Slow 10 0 4Ah 0 1A 4h total 8 5h to 100 with 20 losses 0 8Ah 0 1A 8h Total time fast and slow 16 5hrs to 120 Fast only 4 0Ah 0 8A Shrs 20 6hrs that needs 2 sessions 4 5hrs 1 5hrs to 120 PF SE amp 216 1 2Ah 0 4A 3hrs to 100 capacity with 20 losses 3h 20 3 6hrs total This is well within the first 4 5hrs Micronics Ltd Knaves Beech Business Centre Davies Way Loudwater High Wycombe Bucks HP10 9QR U K Telephone 44 0 1628 810456 Fax 44 0 1628 531540 www micronicsltd co uk e mail sales micronicsltd co uk 31 Micronics Ltd Knaves Beech Business Centre Davies Way Loudwater High Wycombe Bucks HP10 9QR U K Telephone 44 0 1628 810456 Fax 44 0 1628 531540 www micronicsltd co uk e mail sales micronicsltd co uk 32
28. his manual or contact Micronics for advice REYNOLDS NUMBER The Portaflow 216 has been calibrated to operate on Turbulent flows with Reynolds Number of approximately 100 000 The calibration of the unit will not be valid if the Reynolds No is below 4000 19 If the Portaflow 216 is to be used on laminar flow applications it will be necessary to calculate the Reynolds No for each application To calculate the Reynolds No it is necessary to know the Kinematic viscosity in Centistokes the flow velocity and the pipe inside diameter Please follow the table below To calculate R use the following formula d d y R 7730 or R 1000 v vU Where d inside pipe diameter in inches d inside pipe diameter in millimetres V velocity in feet second 1 V velocity in metres second 1 U z Kinematic viscosity in centistokes MAXIMUM FLOW The maximum flow is dependent on the velocity and pipe size APPLICATION TEMPERATURE On any application whose operating temperature is either above or below ambient temperature ensure that the transducers reach and are maintained at the application temperature before undertaking a measurement When applying the transducers to low temperature applications do not allow the pipe surface to ice up between the transducer and the pipe wall The ice will force the block away from the pipe wall and consequently you will lose the signal DIAGONAL MODE SETUP Figure 11 Diagona
29. ipe OD out of range The outside diameter of the pipe has been entered and is out of range of the instrument Wall thickness out of range The wall thickness that has been entered is out of range of the instrument Lining thickness out of range The pipe lining thickness has been incorrectly entered Site range is 0 20 There are only 20 storage sites available with 0 being the QUICK START site e CANNOT READ FLOW BECAUSE Pipe dimensions are invalid e CANNOT READ FLOW BECAUSE materials are invalid e CANNOT READ FLOW BECAUSE Pipe is too large for sensor set e CANNOT READ FLOW BECAUSE Pipe is too small for sensor set e CANNOT READ FLOW BECAUSE Sensor mode is invalid for this pipe size Temperature range is 20 C to 125 C The temperature range of the transducers is 20 C to 125 Enter a lining thickness first This message appears when in VIEW EDIT SITE DATA the user has tried to enter a pipe lining material before entering a thickness APPLICATION INFORMATION The PORTAFLOW 216 is a Transit Time ultrasonic flow meter It has been designed to work with Clamp On transducers thus enabling flowing liquid within a closed pipe to be measured accurately without the need for any mechanical parts to be inserted either through the pipe wall or protrude into the flow system The meter is controlled by a micro processor containing a wide range of data which enables the instrument to measure flow in any pipe diameter from 50m
30. l Mode parts supplied Gull wing attachment As part of your New Portaflow 216 kit you will find two stainless steel gull wings two springs and two lengths of chain Take the transducers from the reflex guiderail Attach the Gull wing to each transducer using the washer amp wing nut provided Spring Apply grease to the bottom of the transducer as tensioning shown on page3 Wrap the chain around the pipe as shown Expand the spring and carefully slide the chain into the slot on the Gull Wing Plug the red connector into the socket on the upstream sensor The sensor with the red cable must be positioned up stream The stem of the sensor must point towards the downstream sensor Piezo electric crystal 20 Figure 12 Attaching the sensor to the pipe Gull wing and spring attachment Peizo electric crystal Program the Electronics with the application data to obtain the calculated separation distance Measure the circumference of the pipe and mark a position at the halfway point Outside Diameter of the pipe times 3 142 divided by 2 Apply grease to the second sensor and plug the blue connector into the top of the sensor Follow figure 13 next diagram to set up the sep distance Figure 13 Marking the Separation distance Seperation distance in Millimetres Sensor stems to face each other Using a marker pen or a strip of ticket paper mark around the pipe fro
31. l alcohol 2 3 Dichlorodioxane Dichlorodifluoromethane 3 Freon 12 1 2 Dichloro ethane 47 cis 1 2 Dichloro Ethene 3 47 trans 1 2 Dichloro ethene 3 47 Dichloro fluoromethane 3 Freon 21 1 2 Dichlorohexafluoro cyclobutane 47 1 3 Dichloro isobutane Dichloro methane 3 1 1 Dichloro 1 2 2 2 tetra fluoroethane Diethyl ether Diethylene glycol monoethyl ether Diethylenimide oxide 1 2 bis DiFluoramino butane 43 1 2bis DiFluoramino 2 methylpropane 43 1 2bis DiFluoramino propane 43 2 2bis DiFluoramino propane 43 2 2 Dihydroxydiethyl ether Dihydroxyethane 1 3 Dimethyl benzene 46 1 2 Dimethyl benzene 29 46 1 4 Dimethyl benzene 46 2 2 Dimethyl butane 29 33 Dimethyl ketone Dimethyl pentane 47 Dimethyl phthalate Diiodo methane Dioxane Dodecane 23 1 2 Ethanediol Ethanenitrile Ethanoic anhydride 22 Ethanol Ethanol amide Ethoxyethane Ethyl acetate 33 Ethyl alcohol Ethyl benzene 46 Ethyl bromide 46 Ethyliodide 46 Ether Ethyl ether Ethylene bromide 47 Ethylene chloride 47 Ethylene glycol 50 Glycol 50 H O d Fenochone d 2 Fenechanone Fluorine C6H120 C6H0 C 10H22 C 10H20 C 10 Hy C4H40 C 10H23N C HjBr C H5Br CsH2204 C4HsCl O C H amp CLO CCLF C H4CL CHCLF C4CLbFg C4H 4CL CCIF CCIF C H O CoH 1405 C4H NO C4H NF3 2 C4Ho NF3 2 C3H6 NF2 2 C3H6 NF2 2 C4H1905 C3H405 CsHio CsHio C H 10 CH 14 C3H6O C H 16 CH 1004 CH C4H40 C 12H26 C2H602
32. m all To stop reading flow press ENTER ONCE The display will read the following This will stop all outputs Press ENTER to EXIT SCROLL to return to READ FLOW Pressing ENTER a second time will stop outputs and return the instrument to MAIN MENU or Press the scroll key to return the instrument to READ FLOW Main Menu View Edit Site Data The VIEW EDIT SITE DATA mode can be accessed from the main menu It allows the user to enter application details for up to 20 different sites This facility is useful if a number of sites are being monitored on a regular basis Application data can be programmed into each site before getting to site When scrolling up down the menu press ENTER to select at each prompt VIEW EDIT SITE DATA List sites Site number 0 Name QUICK START Units MM Wan thick 58 8 Lining 0 0 Wall MILD STEEL Lining Fluid Read flow Exit Note e Site Zero is always the QUICK START data and cannot be changed e Changing the data in any site is automatically saved when leaving this menu Data will have to be re entered to over ride the old data List Sites Selecting LIST SITES allows the user to view the names of up to 20 sites numbers 1 5 appear first Pressing ENTER will display sites from 6 10 Pressing again will display sites 11 15 and again to display 15 20 1 site not named 2 site not named 3 site not named 4 site not named 5 site not named Press ENTER to continue Site Number
33. m bore up to 400mm made from any pipe material over a wide range of operating temperatures The system operates as follows Figure 6 Reflex mode When ultrasound is transmitted from Transducer A to Transducer B REFLEX MODE Figure 6 or Transducer A to B DIAGONAL MODE Figure 7 the speed at which the sound travels through the liquid is accelerated slightly by the velocity of the liquid If sound is transmitted in the opposite direction from B to A it is decelerated against the flow of the liquid The differences in time taken to travel the same distance in opposite directions are directly proportional to the flow velocity of the liquid Having measured the flow velocity and knowing the pipe cross sectional area the volumetric flow can be easily calculated The Microprocessor will determine the correct alignment of each transducer To measure flow it is first necessary to obtain detailed information about each application which is then programmed into the processor via the Key Pad This information must be accurate otherwise flow measurement errors will occur Further having calculated the precise position at which the transducers must be clamped onto the pipe wall it is equally important to align and separate the transducers accurately with respect to one another as failing to do so will again cause errors in measurement Finally to ensure accurate flow measurement it is imperative that the liq
34. m the front edge of the first sensor A till you reach the half way point of the pipe From B measure the separation distance calculated by the electronics Mount the second transducer as per the first with the stem facing the other transducer Press ENTER to view the flow The signal strength should be greater than 50 Should you have difficulty getting a signal remove the sensor from the Gull wing re apply the grease and try to find a signal by moving it with your hand Figure 14 Positioning of the sensor cables Red connector upstream Position the Red sensor cable upstream and the Blue cable Downstream The Electronics will display a positive flow reading with cables in this orientation If the unit displays a negative reading the cables have been connected into the wrong sensors Blue connector downstream ENCLOSURE SUPPLY VOLTAGE Power supply charger BATTERY PACK OUTPUTS Display Analogue TRANSDUCERS B 3 Standard REPEATABILITY PORTAFLOW 216 SPECIFICATION Protection Class Material Weight Dimensions Display Keypad Connections Temperature Range Input Max Power consumption Output 5 AA Nickel Metal Hydride Rechargeable Volumetric Flow Flow Velocity Flow Rate Total Flow Continuous Battery Level Indication Continuous Signal Level Indication ERROR messages 4 20mA into 750 Q Resolution Frequency 50 mm 400mm pipe Temperature range
35. nits required Attach sensor set in REFLEX mode Approx max flow 7 22 m s ENTER to continue SCROLL changes mode Pressing ENTER asks the user to enter a temperature in C Fluid temp CC Now press scroll up The instrument will display the separation distance before displaying flow Main Menu Select Sensor mode When the application information is programmed into the instrument it selects and defaults to the most suitable mode of operation i e REFLEX or DIAGONAL Sensor Mode Selecting Sensor mode allows the user to choose the appropriate method for clamping the sensors to the pipe The default would have been displayed on the previous screen and Sensor mode can be selected to give the user a choice between Reflex and Diagonal SENSOR SET Mode REFLEX Read flow Exit and default This option is available for two main reasons Firstly lets assume that the instrument has selected mount sensors in DIAGONAL MODE Your application may not allow you to achieve this mode Providing the velocity is low enough it is possible to force the sensors into REFLEX mode See page 4 Changing the sensor mode from Diagonal to Reflex would allow the user to measure the flow The display may also read sensor mode invalid for this pipe size Cannot READ FLOW Because pipe to large small for sensor ENTER to continue Read Flow Moving the cursor to Read flow and pressing ENTER informs the user of the mode of operation an
36. reminder for the user to check for correct sensor separation and sensor mode STATUS ERROR WARNING MESSAGES There are three types of message that will appear and they are Status Error and Warning These messages appear under the time and date on the display when in flow mode Status Messages S1 INITIALISING Appears when first entering flow mode to show instrument is starting up Error Messages E1 UNSTABLE OR HIGH FLOW This error message occurs when either the sensors have been positioned too near to an obstruction or bend causing turbulence or the instrument is being used outside its normal flow range When the instrument is programmed the user is informed of the maximum flow rate that is possible to measure and if this is exceeded then the high flow message occurs It may be possible to get round these problems by moving the sensors to a straighter length of pipe or in the case of high flows another set of transducers may be used E2 NO FLOW SIGNAL This message appears when the two transducers cannot send or receive signals which could happen for various reasons Firstly check that all cables are connected transducers are on the pipe correctly with grease on the face No flow signal will show if the pipe is empty or partially filled When the liquid is aerated or when the particulate content of that liquid is too high or if the grease has not been applied to the transducers and the condition of the pipe being measured is poor
37. ress ENTER QUICK START Dimension units MILLIMETRES Pipe O D 58 0 Wall thick 4 0 Pipe lining thickness now appears on the display If the pipe you are measuring has a lining enter the Pipe lining thickness If nothing is entered the instrument automatically assumes there is no lining Press ENTER to move onr after entering the data QUICK START Dimension units MILLIMETRES Pipe outside diameter 58 0 Wall thick 4 0 Lining 0 0 The instrument now displays Select pipe wall material Using the scroll keys it is possible to scroll up or down the options available Select the required material and press ENTER QUICK START Select pipe wall material Mild Steel S less Steel 316 S less Steel 303 Plastic Cast Iron Ductile Iron Copper Brass Concrete Glass Other m s The following will only be displayed at this stage if a lining thickness has been entered Use the scroll keys to select the required material then press ENTER If Other is selected enter the sound speed of the lining in metres sec QUICK START Select pipe lining material Steel Rubber Glass Epoxy Concrete Other mps Select fluid type now appears on the display Use the scroll keys to select the fluid type and press ENTER If the liquid is not listed select Other and enter a liquid sound speed in metres second The sound speed information can be found in the back of the manual under Liquid Sound Speeds QUICK START
38. s calculated by the Portaflow electronics and the transducers must be positioned and clamped exactly at the distance specified 8 Always use the sensor grease provided LIQUID CONDITIONS Transit time ultrasonic meters perform best on liquids that are totally free from entrained air and solids With sufficient air in the system the ultrasound beam can be attenuated totally and therefore prevent the instrument from working Often it is possible to tell whether there is air in the system or not If a flow signal cannot be obtained a simple test to determine whether the flow is aerated involves stopping the flow for a period of 10 15 minutes During this time the air bubbles will rise to the top of the pipe and the flow signal should return If the flow signal does return switch on the flow and if sufficient entrained air is locked in the system it will very quickly disperse and kill the signal To correct the Portaflow 216 for operation in the laminar flow region calculate the Reynolds number adjust the correction factor as described on Page 15 PROPAGATION VELOCITY or SOUND SPEED To make a flow measurement using the Portaflow 216 on any liquid it is necessary to know the propagation velocity in metres second There is a short list of fluids that appear on the display when programming See page 9 showing water and various other liquids However if the liquid you wish to measure is not on this list please revert to the table at the back of t
39. scroll key to select backlight and press ENTER This allows the user to enable or disable the backlight Enable means the backlight will stay on for 15secs with every key press It will stay on permanently with the mains plugged in Use the scroll key to select and press ENTER The backlight will draw power from the batteries and reduce the operating life of the battery cell follow the application note at the back of the manual Backlight Enabled Disabled Application Options Use the scroll key to select Application Options and press ENTER Please enter the following password 39502600 It is a facility that could enhance signal levels on difficult applications primarily very small or very large pipes Use enhanced mode when signals are below 800 Below 800 the system may generate noise and therefore the accuracy of the measurement cannot be guaranteed Sensor Parameters This facility is password protected It stores sensor information used by Micronics and is not available for the user WARNING Sensor should only be edited following instruction from the factory Enter password Factory Settings The facility is used by Micronics in the process of instrument calibration Press ENTER takes you back to SETUP INSTRUMENT MENU Exit Means EXIT and will take you back to the Main Menu Main Menu Read Flow When choosing the Read flow option from the MAIN MENU the instrument reverts directly back to the data that was last entered
40. sducers 1 Select the site following the rules laid down on page 19 Transducer Positioning 2 Inspect the surface of the pipe to ensure it is free from rust or is not uneven for any reason Transducers can be mounted directly on painted surfaces as long as the surface is smooth and that the underlying metal surface is free from rust bubbles On bitumen or rubber coated pipes the coating must be removed in the area under the transducer as it is preferable that the transducers are mounted directly on to the base metal 3 Transducers can be mounted on both Vertical and Horizontal Pipe Runs Figure 10 Sensor mounting position a ae BOTTOM BOTTOM 4 CORRECT INCORRECT 4 Apply Interface grease to the face of the transducers The amount of grease used is extremely important particularly on pipes of less than 89mm bore On Stainless Steel Pipes the amount of couplant applied should never exceed the amount indicated in the Example on page 3 For large Plastic and Steel Pipes the amount of grease applied is less critical however do not use more than is absolutely necessary 5 Strap the guide rail assembly to the pipe so that it is perfectly parallel to the pipe axis 6 When screwing the transducers on to the pipe surface use only enough force to ensure that the Transducer is flat against the pipe surface and then lock in position 7 Clamping the transducers in exactly the correct position is extremely important The Separation distance i
41. t Figure 9 Sensor Mounting CORRECT INCORRECT FLOW FLOW 220 20 i 20 5 20 FLOW FLOW The minimum length of upstream straight pipe is 20 Diameters and 10 Diameters downstream that ensures accurate results will be achieved Flow measurements can be made on shorter lengths of straight pipe down to 10 Diameters upstream and 5 Diameters downstream but when the transducers are sighted this close to any obstruction errors can be considerable It is not possible to predict the amount of error as this depends entirely upon the type of obstruction and the configuration of the pipe work and flow profile The message therefore is clear Do not expect to obtain accurate results if the transducers are positioned closer than allowed to any obstruction that distorts the uniformity of the flow profile MOUNTING THE TRANSDUCERS It will be impossible to achieve the accuracy of measurement specified for the Portaflow 216 if the transducers are not clamped to the pipe correctly and if the data I D O D Pipe Material are not accurate Apart from the correct positioning and alignment of the transducers of equal importance is the condition of the pipe surface in the area under each of the transducers An uneven surface that prevents the transducers from sitting flat on the surface of the pipe can cause Signal Level and Zero Offset problems The following procedure is offered as a guide to good practice with respect to positioning and mounting the tran
42. to system noise The offset can be cancelled out and will increase the accuracy of the instrument Selecting this option and pressing ENTER the display will show the following Stop the flow COMPLETELY and press ENTER or SCROLL to cancel Pressing ENTER before the flow has stopped will result in an error message asking if you are you sure the flow has stopped This occurs when the flow is still above 0 25m sec When this facility has already been selected press ENTER to cancel the previous instruction then it is possible to re set the Zero balance The option is not available when error messages E1 and E2 See page 17 are being displayed Total This option allows the user to disable the positive and negative totalizers When you select either of these options the totaliser will start or stop functioning It does not zero the total this is a separate function described below Reset Total Total The Portaflow 216 has forward and reverse totaliser that can be reset when this facility is selected Use the scroll keys to select and press ENTER to reset The Total is stored when the unit is switched off or battery goes flat therefore may need to be reset before each use Damping sec This facility is used when the flow readings are unstable due to turbulence caused by obstructions or bends etc Damping or averaging can be used to make the readings more stable It can be set to up date the display anything between 3 and 100 seconds
43. uid is flowing uniformly within the pipe and that the flow profile has not been distorted by any upstream or downstream obstructions To obtain the best results from the Portaflow 216 it is absolutely necessary that the following rules for positioning the transducers and that the condition of the liquid and the pipe wall are suitable to allow transmission of the sound along its predetermined path TRANSDUCER POSITIONING As the transducers for the Portaflow 216 are clamped to the outside surface of the pipe the meter has no way of determining exactly what is happening to the liquid The assumption therefore has to be made that the liquid is flowing uniformly along the pipe either under fully turbulent conditions or under laminar flow conditions Further it is assumed that the flow velocity profile is uniform for 360 around the pipe axis Figure 8 A uniform profile as compared to a distorted profile oA p The difference between a and b is that the Mean Velocity of the flow across the pipe is different and because the Portaflow 216 expects a uniform flow as in a the distorted flow as in b will give measurement errors which cannot be predicted or be compensated Flow profile distortions result from upstream disturbances such as bends tees valves pumps and other similar obstructions To ensure a uniform profile the transducers must be mounted far enough away from any cause of distortion such that it no longer has an effec
44. y by keeping a constant voltage across a current sensing resistor In fast charge mode it is 250mV in trickle charge mode 31mV so the trickle charge current is 1 8 of the fast charge current By wiring up input pins on the IC the number of cells is set to 5 the voltage sampling interval to 168 sec and the fast charge time limit to 264 minutes the maximum The battery temperature limits are not used The IC starts the fast charge timer when a battery is connected or when power is applied It terminates the fast charge and returns to trickle charge either after the 264 min 4 5 hrs time limit or when it senses that the battery voltage remains constant or begins to decrease meaning that the battery is fully charged Charging Voltage The voltage available to charge the 6V battery is restricted by the 9V charger input and the two diodes in the input The S2D silicon diodes had a fwd drop of 0 75V limiting the available charge voltage to 7 5V which caused the MAX712 to sense that the battery voltage had stopped rising and therefore prematurely end the fast charge With several days of trickle charging the battery could however still reach its full capacity In Dec 2000 the S2D diodes were replaced by SS14 Schottky diodes with a fwd drop of 0 35V thus raising the available charge voltage to 8 3V At the same time the current was increased Instrument differences The current sensing resistor consists of either 2 or 4 parallel 1 2 resistors
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