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Universal power meter

Universal power meter

Universal power meter

Product catalog summary
Overview: The DF974 and DFD74 are universal power meters designed for panel installation, measuring 96x96x75 mm or fitting into 6 DIN rail modules. They are suitable for low and medium voltage networks, providing comprehensive monitoring of three-phase electrical systems.
Key Specifications:
  • Programmable CT ratio: 1 to 2000, max 9999A
  • Programmable VT ratio: 1 to 100, max 9999V
  • Four-wire or three-wire insertion
  • Four 4-digit LED displays for simultaneous measurement display
  • Energy consumption display in MWh and MVArh
  • Power supply options: 115/230/400 VAC, 45-200 Hz
Mechanical Features:
  • Material: NORYL UL 94 V-2, self-extinguishing plastic case
  • Extractable terminals, 2.5 mm² wire, 12A rating
  • Protection degree: IP50 front, IP20 terminals
  • Weight: Approximately 350g
Environmental Conditions:
  • Operating temperature: -5°C to +50°C
  • Storage temperature: -10°C to +80°C
  • Relative humidity: Max 90% non-condensing
Electrical Measurements:
  • Phase voltage: VL1-N, VL2-N, VL3-N
  • Line voltage: VL1-L2, VL2-L3, VL3-L1
  • Line current: IL1, IL2, IL3
  • Active power: Pact [W]
  • Reactive power: Preact [VAr]
  • Apparent power: Papp [VA]
  • Power factor: PF
  • Frequency: F [Hz]
  • Active energy: MWh (class 1)
  • Reactive energy: MVArh (class 1)
Additional Features:
  • High visibility displays with 10 mm character height (8 mm for DFD74)
  • Maximum display value: 9999
  • Easy navigation and programming via three push buttons
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Catalog excerpts

Universal power meter-1

VT ratio programmable 1շ 100 max 9999V Three of four-wire insertion Օ 4 Led displays 4 digit each (9999) 4 digits for each measurement Օ Display of energy consumption (MWh MVArh) ֕ Easy to use and programDF974 and DFD74 are a panel analyzer (size 96x96x75mm or 6 module DIN rail) which can display the main electrical parameters of a three-phase system, including energies. This instrument is particularly indicated for low and medium voltage networks. The four displays allow to show at the same time four different mea- sures. The limited size allows to fi t the instrument in small spaces inside panels.Four displays with four digits each allow an excellent resolution on the measured values. The high luminosity and the size of the display grant very good visibility. Three push buttons enable the user to scroll easily between the various pages and to set the operating parameters. > Rapporto TA programmabile 1շ 2000 max 9999A Rapporto TV programmabile 1շ 100 max 9999V Inserzione a tre o quattro fi li Օ 4 Display a 4 digit (9999) 4 digit per ogni misurazione Օ Visualizzazione del consumo di energia (MWh MVArh) ֕ Facile da usare e programmareDF974 e DFD74 sono analizzatori da pannello (misura 96 x 96 x 75 mm o 6 moduli per guida DIN) per visualizzare i principali parametri elettrici di un sistema trifase, inclusa lenergia. Questo strumento Ҩ particolarmente indicato per reti a bassa e media tensione. I quattro display permettono di visualizzare contemporaneamente i valori di quattro differenti misure. Le limitate dimensioni dingombro permettono di installare lo strumento in piccoli spazi del pannello.I quattro visualizzatori, ognuno a 4 digit, permettono una eccellente risoluzione dei valori misurati. LҒalta luminosit e la dimensione del display garantiscono unottima visibilitҠ. Tre pulsanti permettono allutilizzatore di scorrere facilmente le varie pagine e di programmare i parametri di lavoro. Schemi di collegamento:/ Wiring diagrams: Fino a 500 Vca 3Ҙ + N con 3 TA/ Over 500 Vac 3 + N with 3 CT Fino a 500 Vca 3ؘ + N con 2 TA/ Over 500 Vac 3 + N with 2 CT Opzione/ Option 09: alimentazione/ power supply 24 ط 240V ca/cc-AC/DC >

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Universal power meter-2

OWER SUPPLY Tensione dalimentazione - Power supply voltage Tensione nominale/ Misurazioni effettuate - Measurament performed Rated voltage 115 / 230 / 400 VAC 璖15% +15% (45-65Hz) V > L1-N - V > L2-N - V > L3-N [V]Tensione linea Tensione ripetitiva max Phase voltage (rms) Max repetitive voltage 485V Tensione non ripetitiva max V - V - V [V] Corrente linea I Line voltage > L1-L2 L2-L3 L3-L1 Max non repetitive voltage 525V (20msec) Consumo Lettura - Consumption 3VA max Type T 100mA ritardato Line current > L1 - I > L2 - I > L3 [A] / delayed TRMSSistema trifase potenza attiva Fusibile - Fuse da montare...

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