DIGITAL AMMETER [SURDHI]

SURDHI 3-Phase AC True RMS Digital Ammeter is manufactured by specifically designed to display the alternating current flowing through three-phase electrical systems. By using True RMS (Root Mean Square) measurement technology, this panel meter ensures highly accurate readings even when measuring distorted, non-linear AC sine waves commonly caused by modern industrial automation, VFDs, and electronic loads

• Model SDV-3A3D96 (3-Phase, 3-Display): This is the most common model. It features a 3-line display that allows panel operators to monitor current levels across all three distinct phases simultaneously.
• Model SDV-3A96: Standard square panel meter sized at \(96 \times 96\ { mm}\).
• Model SDV-3A48: Rectangular, space-saving panel layout sized at \(48 \times 96\ { mm}\)

• Display Type: 3 Rows of 3-digit, bright red, 0.56-inch 7-segment LED displays.
• Measurement Range: Direct measurement from \(30\ { mA}\) to \(5\ { A}\) AC (\(6\ { A}\) maximum overload protection).
• Current Transformer (CT) Ratio: On-site programmable via two tactile front panel buttons up to \(5\ { kA}\) (\(5000/5\ { A}\) or \(5000/1\ { A}\)).
• Wiring Input Configuration: Designed primarily for 3-Phase 4-Wire (\(3\varnothing - 4\ {W}\)) distribution systems.
• Auxiliary Power Supply: Standard \(230\text{ VAC}\) (\(+10\%, -20\%\)) at \(50/60\ { Hz}\). Customized voltages like \(110\ { VAC}\) can be special-ordered.
• Accuracy Class: \(\pm 1\%\) of full-scale deflection (\(\pm 0.5\%\) optionally available based on specific plastic molding batches).
• Resolution: Ranges dynamically from \(0.01\ { A}\), \(0.1\ { A}\), up to \(1\ { A}\) or \(0.01\ { kA}\) depending upon the configured CT primary ratio.
• Enclosure Materials: Built with high-grade engineering plastics including a Polycarbonate front lens, \(30\%\) glass-filled Nylon back insulation casing, and Delrin-molded mounting clamps