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EMS-18 (Voltage Current and Frequency Meter )
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| Parameters | Source Voltage |
| Basic V L-N, V L-L ,Ampere(R,Y,B), Frequency | 415V AC (3ph-4W)/415V AC (3ph-3W) |
| General Specification | |
| Rated voltage (Aux. Supply) | 85 V to 270 V AC / DC |
| Rated Frequency (Aux. Supply) | 50 / 60 Hz ±5% for AC only |
| Configuration | 3 Phase, 4 Wire |
| Power consumption | < 10 VA/2W |
| Accuracy | |
| Voltage,Current,Frequency | ±1% of the display value, ± 1 digit |
| Input Voltage | 3 Phase 4 wire (R, Y, B, N). 415 VAC (VL-LTypical) |
| Input Current | Current inputs (AR, AY, AB) 10mA to 6A typical (10A max) |
| Input Frequency | 50 Hz, ±2% |
| CT Ratio | Primary: 1A to 6000 A max Secondary: 1A to 5A . |
| Recovery Time | 2 Sec |
| Environmental Specification | |
| Ambient Temperature | Operation: -100C to + 550 C Storage: -250C to + 800 C |
| Humidity | Up to 85% RH @ 400 C |
| Safety | |
| Insulation resistance | >100M ohms @ 500V DC |
| Dielectric strength | 2.5KV AC, 50HZ for 1 minute. (Between current carrying & non-current carrying parts) |
| Electrical connection | Screw type terminals with self lifting clamps |
| Dimension(Over all) | 96 x 96 x 117.5 mm(W x H x D) |
| Dimension(Cut outl) | 92 X 92mm (W X H) |