Used for measurement of small quantities of electrical charge. Levelling Screws for balancing the coil. Coil with mirror suspended between long suspension at the upper end and a spring at lower end. Suspension and spring are made of phosphor bronze alloy. Bakelite case, rigid and robust. Clamping arrangement for transportation. Consistent sensitivity over a large period. Strip provided for making it a periodic Weight 1.5 kg and Size 250 x 150mm. a b Res. in Ohm 115 515 Sensitivity mm per m Coul 300 600 Sensitivity mm per m Amp 1000 1400 Time period in seconds 12 12 Cat Damp. Res. in ohms 2000 3500 |