Datasheet ND20
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Catalog excerpts

Datasheet ND20 - 1

DITEL$>L U M E L ND20 - METER OF NETWORK PARAMETERS • Measurement of power network parameters in 2,3 or 4- wire balanced and unbalanced systems. • High accuracy class. • Indications considering values of programmed ratios. • Harmonics of voltages and currents (selectively). • THD factors for currents and voltages. • Profile of 15, 30, 60-minutes' power (9000 measurements). • Watt-hour meter for the selected harmonic. • Backlit LCD 3.5" screen. • Protection grade from the frontal side: IP65. • Digital transmission to the master system through the RS-485 interface (MODBUS). • Configurable analog, alarm and pulse outputs (energy). • Configuration of displayed pages. Measurements, monitoring, recording of network parameters and energy. measured quantities and measuring ranges * Depending on the set tr_U ratio (ratio ofthe voltage transformer: 0.1...4000.0) and tr_I ratio (ratio ofthe current transformer: 1...10000) r - of the range mv - of the measured value

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Datasheet ND20 - 2

ND20 - METER OF NETWORK PARAMETERS Made by OUTPUTS Analog output Relay output Pulse output of active/reactive energy 1 programmable current output 0/4...20mA programmable relay output, normally open voltageless contacts, 250 V~/0.5 A~ 1 x OC type, passive DIGITAL INTERFACE Interface type RS-485 Transmission protocol MODBUS RTU EXTERNAL FEATURES Readout field Weight Overall dimensions Protection grade (acc. to EN 60529) LCD 3.5” screen, specialized, monochromatic with backlit < 0.3 kg 96 x 96 x 77 mm panel cut-out: 92.5+0.6 x 92.5+0.6 mm from frontal side: IP65 from terminal side: IP20 eCON...

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