"Kutanga kwemvura inoyerera" (inonzi Q₁ mumatanho emetrological) inotsanangurwa sehuwandu hushoma hwemvura inoyerera iyo muchina wemechanical water meter unogona kutanga kutenderera kwenzira yawo yekuyera yemukati (semuenzaniso, impeller) uye kuita chiyero chevhoriyamu chakakodzera.
Zvinodiwa zvikuru zvehunyanzvi zvinotsanangurwa seizvi:
- Padanho rekutanga rekufamba kwemvura Q₁, chikanganiso chekuyera kwemita chinofanira kutevedzera miganhu yakatarwa nekirasi yayo yekururamisa (semuenzaniso, ±5% yemamita eKirasi 1 uye ±3% yemamita eKirasi 2 paISO 4064-1:2014).
- Chiyero ichi chinofanira kuratidza kutanga kwemagetsi kunokurumidza pasina kuvharika kana kusimba, zvichiita kuti pave nekuyera kwakavimbika kwemamiriro ekuyerera kwemvura yakaderera (senge mvura inodonha) ayo anowanzoitwa mumabasa epamba kana ebhizinesi.
- Kukosha kwekuyerera kwemvura kunotanga kunotsanangurwa kuburikidza nekuyedzwa kwakajairika, uko kunoda kuti mita inyore huwandu hwemvura panguva imwe chete kana mvura ichiyerera paQ₁, pasina kunonoka kukuru kana kutadza kutanga kuyerwa.
Zvinodiwa izvi zvakakosha kudzivirira kushandiswa kwemvura isina kunyorwa uye kuona kuti mita inotevedzera mitemo yepamutemo yemetrology.
Nguva yekutumira: Mbudzi-18-2025