JD Series Electronic Type Counter For Electric Energy Meter 1,Pluse Ratio Specification:10:1;20:1;40:1;80:1;100:1;200:1;400:1;800:1;1000:1 2,Technical Index: Start-up Work Voltage no greater than:2.8V; Normal Working Voltage:3.5-5.5V; Pluse Width:80-150ms; Working Temperature:-20°C- +60°C; Working Frequency:4Hz; Motor Torque Output:5mN.m; Service Life:≥10 years; Anti-vibration and anti-impact property comply with GB/T17215 Note:Technical indexes for JDC3double rate meters are identical.