... Standard of implementThe design, production and instrument of RV-100 series Electromagnetic Flowmeter Converter implement. Low ... value gross. 1.2 Especial function Recording time when power turn-off, to record power broken time of instrument system automatically ... ,250,300,350,400,450,500,600,700,800,900,1000,1200,1400,1600,1800,2000,2200,2400,2600,2800,3000 ...