Micronics 216 manuale d’uso

1 PORTAFLOW 216 Flowmeter Operating Manual Micron ics Ltd, Knaves Beech Busin ess Cen tre, Davies Way, Loudw ater, H igh Wy com be, Buc ks. HP10 9QR TEL : +44 (0)1628 810456 FA X: +44 ( 0)1628 531540 e-m ail: sales@ micronicsltd.co.uk www.micronicsltd.co.uk Publication: March 2001 Document Num ber 740-1001D Software Version: 1.00[...]

2 CONTENTS Page No Introduction 2 Fast track procedure 3-4 Parts and accessories 4 Battery and Charg er 5 Transducers/Separation Distance/Fluid Types 6 Program ming – 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 Instrum ent 12 Pulse output/ Display/Sign a[...]

3 Select Qu ick Start - Press ENTER . Dimension Units? – Scroll to select units required, pres s ENTER . Pipe OD – Enter data, pr ess ENT ER . Pipe Wall T hickness – Enter data, pres s ENT ER. Pipe Lining Thickn ess – Enter data, press ENTER . ENT ER Zero if ther e is no lining on the application. Select Wall M aterial – Select using s cr[...]

4 For Reflex Mode attach the gu ide rail (Figure 3) to the pipe as shown below . Turn the locking n ut on the fix ed transducer an ti-clockw ise, screw ing it down on to the pipe surf ace. Do not over-tig hten , caus ing the g uide rail to lift of f the pipe. Set the separation distance (Figure 3) by sliding the floating transducer along the scale [...]

5 Figure 5:- Battery mains charger. Is supplied with additional plug heads for use Worldw ide. The charger is rated 90Vac to 265Vac 47/63m hz @ 1.1A Battery Circuit A battery manag ement circu it controls the battery recharg e. The circuit helps to prevent the batteries from being damaged thro ugh ove rcha r ging. T he c irc ui t auto matica l ly c[...]

6 Separation Distance The instrum ent calculates the separation dist ance w hen all param eters have been entered via the k eypad. Al so the instrum ent calcu lates the m axim um flow velocity allowed w ith th e standard sens ors and indicates w h ether Reflex or Diagon al mode s hould be u sed. Ultrasonic Couplant Ultrasonic couplan t/grease m ust[...]

7 The instrument no w asks for the Pipe outside diameter? A fter entering th e outside diameter in m illimeters press ENTER . QUICK START Dimen sion un its mm Pipe O.D.? 58.0 Pipe wall thickness now appears on the display. Enter the pipe wall th ickness in m illimeters, then press ENTER. QUICK START Dimen sion un its MILLIMETRES Pipe O.D.? 58.0 Wal[...]

8 QUICK START Select pipe lining m aterial: Steel Rubber Glass Epoxy Concre te Other (m ps) Select fluid type now appears on the display . Use the scroll keys to select the fluid ty pe and press ENTER . If the liquid is not listed select Other and enter a liquid s ound speed in m etres/second. The sou nd speed inform ation can be fo und in t he ba [...]

9 The display will n ow show the sensor seperation distance. Adjust the m oveable sensor to the required distance. Press ENTER to read flow . READ FLO W now appears on the dis play. Batt CHRG Sig 48% (ERROR MESSAGES APP EAR HERE) m/s When reading volum etric flow the instrum ent w ill display a positive and neg ative total. Selecting OPTIONS from t[...]

10 Pipe O.D. 58.0 Wall thick 4.0 Lini ng 0.0 Wall MILD STEEL Lining --------- Fluid WATER Read flow Exit Note : • Site Zero is alw ays the QUICK START data an d cannot be ch anged. • Changin g the data in any site is automatically saved w hen leaving this men u. Data will h ave to be re-entered to over ride th e old data. List Sites Selecting L[...]

11 Read Flow Selecting Read fl ow inform s the u ser of th e mode of operation an d the approxim ate m axim um flow rate . Press the appropriate key can chan ge the units required. Attach sensor set in REF LEX m ode Approx . max . flow : 7.22 m/ s ENTER to co ntinue SCROLL changes mod e Pre ssing ENTER asks the user to en ter a temperature in °C. [...]

12 Main Men u - Set Up Instrumen t Pulse Output K ey This can on ly be operat ed in fl ow m ode. Use the scroll key to move the cursor up or down th e display. To change the flow units press the key required. This will also change the f low un its wh en returning to the flow mode. Changin g the flow units w ill also re-scale the litres per pulse. P[...]

13 Sensor Parameters This facility is passw ord protected . It sto res sensor inform ation used by Micronics and is n ot available for the user. WARNING! Sensor shou ld only be edited followin g instruction from the factory Enter pas sw ord Factory Settings The facility is us ed by Micronics in the process of instrum ent calibration. Press ENT ER t[...]

14 Set Z ero Flow On some applic a tions and in so me conditions it may be that altho ugh there is no flow the instrument m ay show a small offset due to sy stem n oise. T he offset can be cancelled out and w ill increase the accuracy of the instru ment. Selectin g this option and pressing ENTER the display w ill show the f ollowing. Stop th e flow[...]

15 Measurement µ µ µ µ s A point in the sig nal transm itted, where the f low m easurem ent is taken from . It is used to see if the sign al is being taken from th e burst at the correct time to get the strong est signal. It is norm ally us ed on smaller pipes wh en the instrum ent is being u sed in dou ble or triple bou nce as sign als can som[...]

16 Warning Messages W1: CHECK SITE DATA This mes sage occurs w hen the application inf ormation has been entered in correctly an d the w rong sens ors have been attached to the w rong pipe s ize causing the sy stem timing to be in error. The site data needs to be ch ecked and the instru men t reprogram m ed. W2: SIGNAL TIMING POOR Unstable si gnal [...]

17 Enter a lining th ickness first This mes sage appears w hen in VIEW/EDIT SITE DATA the user has tried to enter a pipe lining m aterial before entering a thick ness. APPLICATION INF ORMATION The PORTAFL OW 216 is a Transi t Time u ltrasoni c flow m eter. It has been desig ned to w ork w ith Clam p On transducers, th us enablin g flow ing liqu id [...]

18 TRANSDUCER POSITIONING As th e transducers f or the Portaflow 216 are clamped to the ou tside surf ace of the pipe, the m eter has no w ay of determining exactly w hat is h appening to the liquid. The assumption therefore has to be made that th e liquid is flowing uniform ly alon g the pipe either under fu lly turbul ent conditions or under lami[...]

19 An u neven surf ace that prevents the transducers f rom sitting f lat on the surface of th e pipe can cause Signal Lev el and Zero Off set problem s. The follow ing procedu re is offered as a guide to g ood practice with respect to positionin g and moun ting the tran sducers. 1) Select the site follow ing the rules laid dow n on page 19 - Transd[...]

20 If the Portaflow 216 is to be us ed on lam inar flow applications it will be n ecessary to calculate the Rey nolds No f or each application. To calculate the Rey nolds No it is n ecessary to know the Kinem atic viscosity in Cen tistokes; th e flow velocity and the pipe insi de diameter. Please follow the table below MAX I MUM F LO W The max imu [...]

21 Figure 12: Attaching the sensor t o t he pipe Figure 13: Marking the Separation distance Figure 14: Positioning of the sensor cables Program the Electronics with the application data to obtain the calculated separation distance. Measure the circumference of the pipe and m ark a position at the halfway point. (Outside Diam eter of the pipe times [...]

22 PORTAFLOW™ 216 SPECIFICATION ENCLOSURE: Protection Class IP55 Material A BS Weigh t < 1.5 Kg Dim en sions 235 x 125 x 42 m m Display Graphics LCD display Key pad 1 6 Key Tactile Mem brane Connecti o ns IP6 5 Le mo Co nnecto rs Temperatu re Rang e 0°C to +50°C (operating ) -10° to +60° C (storage ) SUPPLY VOLTAGE: Pow er supply /ch arger[...]

23 Figure 15 :- POR T A FLOW 216 Flow Range PORTAFLOW 216 F LOW RA NGE - DIAGONA L MODE PORTAF LOW 216 FL OW RA NGE – REF LEX MODE WARRANTY The mat erial and w orkm ans hip of t he PORTAF LOW 216 is g uarant eed by MIC RONICS L TD for one y ear from the date of pu rchase prov ided the equi pmen t has been used for th e purpose f or wh ich it has [...]

24 LIQUID SOUND SPEEDS Liquid Sound Speeds Note: All the fo llowing so und speeds are calculat ed a t 25°C. The speed of sound in liquids at t emp eratures other t han 25°C are calcula t ed as follow s. Example: Substance Form Index Specific Gravity Sound Speed ∆ ∆ ∆ ∆ v/ºC - m/s / º C Glycol C 2 H 6 O 2 1.113 1658 2.1 Water, distilled [...]

25 Substance Form Index Specific Gravity Sound Speed ∆ ∆ ∆ ∆ v/ºC - m/s / º C Acetic anh ydride (22) (CH 3 CO) 2 O 1.082 (20ºC) 1180 2.5 Acetic acid, anh ydride (22) (C H 3 CO) 2 O 1.082 (20ºC) 1180 2.5 Acetic acid, nitrile C 2 H 3 N 0.783 1290 4.1 Acetic acid, ethy l ester (33) C 4 H 8 O 2 0.901 1085 4.4 Acetic acid, m ethy l ester C 3[...]

26 Cy clohexanol C 6 H 12 O 0.962 1454 3.6 Cy clohexanon e C 6 H 10 O 0.948 1423 4.0 Decane (46) C 10 H 22 0.730 1252 1-Decene (27) C 10 H 20 0.746 1235 4.0 n-Decyle ne (2 7 ) C 10 H 20 0.746 1235 4.0 Diacetyl C 4 H 6 O 2 0.99 1236 4.6 Diamy lamine C 10 H 23 N 1256 3.9 1,2 Dibrom o-eth ane (47) C 2 H 4 Br 2 2.18 995 trans- 1,2-Dibrom oethene(47) C [...]

27 Fluoro-benzen e (46) C 6 H 5 F 1.024 (20ºC) 1189 Formal dehy de, meth yl es ter C 2 H 4 O 2 0.974 1127 4.02 Formam ide CH 3 NO 1.134 (20ºC) 1622 2.2 Formic acid, am ide CH 3 NO 1.134 (20ºC) 1622 Freon R 12 774.2 Furfural C 5 H 4 O 2 1.157 1444 Furfury l alcohol C 5 H 6 O 2 1.135 1450 3.4 Fural C 5 H 4 O 2 1.157 1444 3.7 2-Furaldeh yde C 5 H 4[...]

28 2-Meth ylph enol (46) C 7 H 8 O 1.047 (20ºC) 1541 3-Meth ylph enol (46) C 7 H 8 O 1.034 (20ºC) 1500 Milk, h omog enized 1548 Morpholine C 4 H 9 NO 1.00 1442 3.8 Naphth a 0.76 1225 Natu ral Gas (37) 0.316 (- 103ºC) 753 Neon (45) Ne 1.207 (-246ºC) 595 Nitrobenzen e (46) C 6 H 5 NO 2 1.204 (20ºC) 1415 Nitrogen (45) N 2 0.808 (-199ºC) 962 Nitr[...]

29 Propyl ene (17,18,35) C 3 H 6 0.563 (-13ºC) 963 6.32 Py ridi ne C 6 H 5 N 0.982 1415 4.1 Refriger ant 11 ( 3,4 ) CCl 3 F 1.49 828.3 3.56 Refriger ant 12 ( 3) CCl 2 F 2 1.516 (- 40ºC) 774.1 4.24 Refri gerant 14 (14) CF 4 1.75 (-150ºC) 875.24 6.61 Refriger a nt 21 ( 3 ) CHCl 2 F 1.426 (0ºC) 891 3.97 Refriger a nt 22 (3 ) CHClF 2 1.491 (-69ºC)[...]

30 PORTAFLOW 216 Battery Charge circuit Operation. Charging Controller IC: A Maxim I C MAX712 or MAX 713 controls the Ni-C d and Ni-Mh battery charger. It has two modes, fast charg e and trickle charg e; an output indicates the fast-charg e status. In both m odes it supplies, via a PNP power transistor, a constant current to the battery, by keeping[...]

31 Quicker full charge: T he fastest way to fully charge the battery is to charg e for 4.5 hrs, then switch the power supply off and on again, thus re- starting the fast charg e for another 4.5 hr period, followed by trickle charg e. Warning: If the battery is getting warm, that would indicate that it is full, and the power supply should not be con[...]

32 Micronics Ltd Knaves Beech Bu siness C entre, Davie s Wa y, Lo udwater , Hi gh Wycombe , Bucks . HP10 9QR U.K. Telephone: +44 (0) 1628 810456 Fax: +44 (0) 1628 531540 www.mi c r o n ic s l td . c o . uk e-m ail – sales@micronicsltd.co.uk[...]