5 Maintenance & inspection ‘Symptom ‘The liquid passes but ‘neither pointer nor totalizing counter move. Clogged strainer. Remedy (Check the piping system. Clean the strainer element. No rotation of rotor due to dust, scale, et. in the measuring unit. Disassemble and inspect the measuring unit ‘according tothe disassembling procedure of flow meter. Disengagement of gears in the counter unit Loose set screw of gears in the counter unit. Galling of shaft and bearing in the counter unit. Breaking of transmitting mechanism parts in the counter unit Clean, lubricate or replace parts. Excessive liquid temperature, pressure, ete. beyond allowable range, ‘Mixing of air in the liquid, Use within the range indicated on the nameplate. Eliminate air by instaling an air separator, et Excessively large totalized volume of fow " ‘meter against actual _| Empty piping before and after the flow meter. aa [arcana poten liquid volume: ‘on plus side) | High viscosity of operating liquid ; : CRecurecy on pus se) | HR Vaca oe ent kom | Comet nrumenta err by replacing he comection gears. specications) Small fow rate Use inthe fw rate range of specifications Excstalyamal | Low vecnty of operating ut (empeaine, | Carectinst ume ero by wpa te ae viscosity, ete. diferent fom specifications). | correction gears. _ liquid volume Wear or breaking of measuring uitpars. | Disassemble and inspect the measuring unit (Rccuracy on minus | Adhesion of dust, scale, et. to the measuring | according fo the disassembling procedure of side) unit flow meter, Clean or replace pars. Heavy rotation of counter unit Clean, lubricate or replace pats Disagreement between | Defective engagement or damage ot iieelvledion |coeraetn meneame Clean, ubrcate or replace pats. rate in the counter unit and value of output puise in the generator unit. Unusual waveform of output signals, Defective wire connection with flow rate indicator, converter, etc. Repair defective parts of the wiring. Defective puise generator. Replace pulse generator. Flow meter needs periodic maintenance and inspection to maintain measuring accuracy. Interval of inspection is basicaly ‘every year but this interval is changed depending on the frequency of use and the working environment Itis recommended to make inspection of flow meter at our factory atleast every three years. uw6 .Disassembling procedure sain Sy é ete Remove all body bolts, Lift the main body vertically and Remove the mossur ing chanber cover Tool, Size ‘separate the measuring charber by lifting it vertically, Lonel eed en from the main body while taking £080 1040 : Spumer tm) cere not to damage the lover (868010080 | SpemerOnn) mae Check if the rotor turne smoothly. Clean well the roter and the Sat the rotor chaft correctly in measuring chanber sufficiently the hole for rotor shaft in the ing. asoline or water, ete, If eccentric be there is © contact betwoen the rotor and the partition wall when you replaced the rotor. grind the contact part gently with a fine file Patitin it is: ewig cielber: ier: Ascenble the measuring chanber by fitting the inlet of the measur ing chamber to the Inlet of the main correctly by fitting the rotor shaft to the position of hole in tthe clutch and the partition wall body ‘to the groove in the measuring chamber cover w7. Disassembly drawing [Counter unit(Type AO) [Counter unit(Type Z8) 23B Ghudine \\ 208.228) Notel |When counter units is type |AO , 28 and direct totalizing |type (without pulse generator / (cooling fin), installation of dial lease is made by fastening nut \, 200.218.2209 220 “intermediate gear) Note) Set serews are not included Generator unit and cooling fins or Measuring unit Please instruct separately Hf necessary. 13From counter unit pesestoemet ie wots 7 (Non explosion-proof type and (7 Equipped with generator inisaidataty Bp | Eavipped with jp ereceue-anetant a ———" I | senerator i 16 Shape of pulse unit ! | [ is slightly differed i i NX bee according to kind of| [Puce unit H Es inciting 16~18) | pulse (RM. use uri i ||(Pressure-resistant | 18 i proof type Plate packing is changed to ‘Orrin from October 2016, Groove for O-ring at signal output case is added Shape of pulse unit is slightly differed according to kind of| pulee (RMD. HE In case of two stage cooling fins construction, same cooling fin is added, a (Note) Sat ecrews are not included. uu Please instruct separately if necessaryNote) Set screws are not included Please instruct separately if necessary. | From Measuring unit or Generator unit and cooling finsMa Parts name Q'ty} No. Parts name JQ" ty| Na. Parts name Q'ty] TWecnrnehnbroet [1 [14] tanta tare 1 fae] set Te [1 Tatar ot Tipo FO ee ee 1 : Te] Resse? 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