描述 Description

Murata Power Solutions’ new DMR20-1-ACV self-powered, AC line-voltage monitors aredesigned to measure and display the true-rms voltage of AC power systems. Simply connectany 85 to 264Vac 50/60Hz power source and these meters are fully operational—noadditional components or power sources are required. The unit can also measure distortedAC power sources including triangle, square, and the quasi-sine output of many DC to ACpower inverters.The DMR20-1-ACV is housed in a rugged, round polycarbonate case that provides excellentprotection against moisture, dust, shock and vibration. Panel installation is straightforward:Using readily available tooling, simply drill and punch a 1.2 inch (30.5mm) diameter hole andanti-rotation notch, insert the meter and gasket, and securely fasten the meter using the suppliedhex nut. The supplied hardware is designed to provide protection to IP67/NEMA 6.Their large, 0.30\"/7.6mm, bright LED displays can be easily read from 10 feet away (3meters). These meters accurately display ac voltages with 0.1V resolution. A built-in resettablefuse assures long term reliability. All DMR20-1-ACVs employ a 13-bit A/D converterand precision metal-fi lm resistors to achieve outstanding performance over an operatingtemperature range of –25 to +60°C.