Gebruiksaanwijzing /service van het product 204 van de fabrikant Micronics
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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.
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 .
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.
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 .
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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