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DATEL DMS-20PC-FM series are the world's smallest self-powered ac line-frequency meters. Simply connect the ac line to the two rear input terminals, and the unit is fully operational with no additional components or auxiliary power required. Two 50/60Hz models operate over input voltage ranges of 85-140Vac or 170-264Vac. A third model accepts 400Hz voltages between 85-140Vac. Despite their small size (1.38" x 0.88" x 1.0"), DMS-20PC-FM meters feature large 0.40"/10.2mm red LEDs that can be read easily from 15 feet away.
An ultra-stable, quartz-crystal-controlled, embedded microcomputer provides accuracies of ±0.1Hz (50/60Hz models) or ±1Hz (400Hz model) over the entire operating temperature range of .25 to +60°C. Encapsulated plastic packages provide excellent protection against the harsh environments normally encountered by backup power equipment.
Features:
- Ideal for emergency/backup power-generating equipment
- Self powered; only two connections for full operation
- Monitor 60Hz @ 120/220Vac or 400Hz @ 120Vac
- Large (0.4"/10.2mm), bright red LED displays
- Three-digit readouts accurate to ±0.1Hz (60Hz models)
- Package size: 1.38 x 0.88 x 1.0 in. (35 x 22 x 25mm)
- Reliable, screw-terminal connectors
- Rugged, encapsulated construction
- UL/CSA certified components
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