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Manual Micronics 204

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  • Micronics 204 - page 1

    PORTAFLOW 204 Plus! Flowmeter Operating Manual Micronics Ltd, Knaves Beech Busine ss Centre, Davies Way, Loudwater, High Wycombe, Bucks. HP10 9QR TEL: +44 (0) 1628 810456 FAX: +44 (0) 1628 5 31540 e-mail sales@micro nicsltd . co.uk Web site www.micronics ltd.co.uk ...

  • Micronics 204 - page 2

    1 CONTENTS Page No System Component Pack 1 Introduction 1 Transducer Mounting 2 Programming – Main Menu 4 Main Menu – Quick Start 4 Main Menu – View/Edit site data 6 Main Menu – Select sensor set 7 Main Menu – Set up Instrument 7 Keypad Options – Pulse, 4-20mA, RS232, Logger, Options 8 Status/Error/Warning messages 10 Application and Pe ...

  • Micronics 204 - page 3

    2 TRANSDUCER MOUN TING 1. OPERATION COMMENT 1.1 Remove oxidization, bitumen or rubber from pipe su rfa ce where the transducer assembly is to be mounted. Very thick asbestos, concrete, old porous cast iron tubes and steel pipes with scaled or badly corroded internal surfaces ca n we aken the signal and prevent the unit from operating correctly. Mou ...

  • Micronics 204 - page 4

    Fig 1a . Fig 1b. CORRECT INCORRECT FLOW FLOW UP UP DN DN >20d >10d >20d FLOW FLOW UP UP DN DN <20d <10d <2 0d Fig 2 . Inverted Plan View of Transducer Assembly 3 Ultrasonic couplant Ultrasonic couplant 20mm 2mm Fig 3a . Guide Rail Assembly Fig 3b Mount Transducer Assembly as shown Sensor blocks Knurled Knobs Connectors Separation ...

  • Micronics 204 - page 5

    4 PROGRAMING-MAIN MENU Switch 0n … Micronics Ltd. PORTAFLOW 204+3 V1.04 Press Enter to start Main Menu Press SCROLL up or down to move cursor to the required option and pre ss 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 all ...

  • Micronics 204 - page 6

    Select fluid type now appears on the display. Use the scroll keys to select the fluid type and press ENTER . If the liquid you are measuring is not listed select Other and enter a liquid sound speed in metres/second. The sound spe ed information can be found in the back of the manual under Liquid Sound Speeds. QUICK START 5 Select fluid type: Water ...

  • Micronics 204 - page 7

    6 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. Applicatio n data can be programmed into each site before gettin g there! This also allo ...

  • Micronics 204 - page 8

    7 Enter the temperature and pre ss ENTER. The instrument will display the separation distance before displaying flow. Follow t he instructions on the screen and the unit will read flow. Main Menu – Sensor set When the application information is programmed into the instrument it calculates the optimum separation distance for the transdu ce rs in r ...

  • Micronics 204 - page 9

    8 KEYPAD OPTIONS The output options can only be adjuste d and operated in flow mode. Pulse Output Key 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 whe n returning to the flow mode. Changing the flow units will also re-scale the litres per pulse. P ...

  • Micronics 204 - page 10

    9 figure they wish including a minus figu re for reverse flow conditions. Output mA For Error This gives an error output to inform the user of loss of signal. The figure set to between zero and 24mA, but defaults to 22mA. Exit RS232 Key Not available on this instrument. Logger Key Not available on this instrument. Delete Key If anything is entered ...

  • Micronics 204 - page 11

    10 Set up instrument - Correction Factor This is a facility that can be used whe n errors occur due to lack of straight pipe or the sensors have been pla ced too clo se 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, ...

  • Micronics 204 - page 12

    11 • The grease has not been applied to the transducers • The condition of the pipe being measured is poor. Warning Messages W1: Check site dat a This message occurs when the applicat ion information has been entered incorre ctly or the wrong sensors have been attached to the wrong pipe size cau sing the syste m timing to be in error. The site ...

  • Micronics 204 - page 13

    APPLICATION & PERFORMAN CE WARNING - Users should or note tha t: a) The PORTAFLOW is not certified for use in Ha zardous areas. b) The local site safety regulations must be compli ed with. c) Work is carried out in accordance with The Health & Safety at Work Act 19 74. The operational temperature of the fluid to be measured is -20° C to +1 ...

  • Micronics 204 - page 14

    PORTAFLOW 204 Plus! SPECIFICATION Carrying Case Outside Dimensions Protection Class Material Total Weight Complete : 350mmx330mmx170mm : IP54 : Plastic : 6 Kilos Electronics Housing Assembly Approximate Dimensions Material Protection class Approx. weight Operating Temp Storage Temp Battery Pack : 235mmx125mmx42mm : Pebble Grey Abs : IP 54 : 400grms ...

  • Micronics 204 - page 15

    WARRANTY The material and workmanship of the PORTAF LO W 204 Plus! is guaranteed by MICRONICS LTD for one year from the date of purchase provide d the equipm ent has been used for the purpose for which it has been design ed, and has been operate d in a ccordance with the operating manual supplied. Misuse by the purchaser, or any other person, will ...

  • Micronics 204 - page 16

    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 is calculated as follo ws. Example: Substance Form Index Specific Gravity Sound Speed Δ v /ºC - m/s/ºC Glycol C 2 H 6 O 2 1.113 1658 2.1 Water, distille d (49,50) H 2 O 0.996 1498 -2.4 For every 1°C hi ...

  • Micronics 204 - page 17

    Substance Form Index Specific Gr avity Sound Speed Δ v /ºC -m/s/ºC Cinnamaldehyde C 9 H 8 O 1.112 1554 3.2 Cinnamic aldehyde C 9 H 8 O 1.112 1554 3.2 Colamine C 2 H 7 NO 1.018 1724 3.4 o-Cresol (46) C 7 H 8 O 1.047 (20ºC) 1541 m-Cresol (46) C 7 H 8 O 1.034 (20ºC) 1500 Cyanomethane C 2 H 3 N 0.783 1290 4.1 Cyclohexane (15) C 6 H 12 0.779 (20ºC ...

  • Micronics 204 - page 18

    Substance Form Index Specific Gr avity Sound Speed Δ v /ºC -m/s/ºC n-Hexanol C 6 H 14 O 0.819 1300 3.8 Hexahydrobenzene (15) C 6 H 12 0.779 1248 5.41 Hexahydrophenol C 6 H 12 O 0.962 1454 3.6 Hexamethylene (15) C 6 H 12 0.779 1248 5.41 Hydrogen (45) H 2 0.071 (-256 ºC) 1187 2-Hydroxy-toluene (46) C 7 H 8 O 1.047 (20ºC) 1541 3-Hydroxy-tolune (4 ...

  • Micronics 204 - page 19

    Substance Form Index Specific Gr avity Sound Speed Δ v /ºC -m/s/ºC Propane (2,13)(-45 to -130ºC) C 3 H 8 0.585 (-45ºC) 1003 5.7 1,2,3-Propanetriol C 3 H 8 O 3 1.26 1904 2.2 1-Propanol (46) C 3 H 8 O 0.78 (20ºC) 1222 2-Propanol (46) C 3 H 8 O 0.785 (20ºC) 1170 2-Propanone C 3 H 6 O 0.791 1174 4.5 Propene (17,18,35) C 3 H 6 0.563 (-13ºC) 963 ...

  • Micronics 204 - page 20

    PORTAFLOW 204 Plus Battery Charge circuit Operation. Charging Controller IC: A Maxim IC MAX712 or MAX713 controls the Ni-Cd and Ni-Mh batt ery charger. It has two modes, fast charge and trickle charge; an ou tput indicates the fast-charge status. In both modes it supplies, via a PNP power transis tor, a constant current to the battery, by keeping a ...

  • Micronics 204 - page 21

    Warning: If the battery is getting warm, that would indi cate that it is full, and the power supply should not be connected again - ove rchar ging reduces the life of the battery. Note: After a recently fully charged battery is connect ed to the charg er, it seems that it takes the MAX712 about 30 min to sense that the battery voltage stops changin ...

  • Micronics 204 - page 22

    PRODUCT CARE AND MAINTENANCE WARNING:-USE ONLY BATTERI E S, CHARGER, ACCESS ORIES, CABLES APPROVED FOR THIS PARTI CULAR MODEL. THE USE OF ANY OTHER TYPES MAY I NVALIDATE ANY APPROVAL OR WARRANTY APPLYIN G TO THE INSTRUMENT AND MAY BE DANGEROUS. IF IN DOUBT CONTAC T A MIC RONICS SALES OR SERVICE REPRESENTATIVE. • Do not disassemble this unit unles ...

Manufacturer Micronics Category Oxygen Equipment

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