Automatic electric ltd. Is engaged in manufacturing electrical instruments, power systems and instrument transformers in india. The company has been accredited with an iso 9001 certification. Voltmeter with built-in 6 position selector switch is used for measurement of voltage between phase to phase and phase to neutral. The following are its unique features:
1. analogue type
2. operating voltages are 150v / 250v / 300v / 400v / 500v / 600v.
3. accuracy of 1.5% of fsd
4. insulation resistance is greater than 20 mohms at 500v.Dc
5. operating temperatures range is between -10degc to 55degc
6. dielectric strength of 2kv rms for 1 minute
