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Digital three-phase voltmeter

Digital three-phase voltmeter: YK4U series [Digital three-phase voltmeter] Model specification: YK4U-24 Panel size: 120 × 120mm Hole size: 111 × 111mm

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Digital three-phase voltmeter:YK4U series　　　Digital three-phase voltmeter

Model and specification: YK4U-24 Panel size: 120 × 120mm Hole size: 111 × 111mm

Model and specification: YK4U-94 Panel size: 96 × 96mm Hole size: 91 × 91mm

Model and specification: YK4U-34 Panel size: 80 × 80mm Hole size: 76 × 76mm

Model and specification: YK4U-A4 Panel size: 72 × 72mm Hole size: 67 × 67mm

Model and specification: YK4U-D4 Panel size: 48 × 48mm Hole size: 45 × 45mm(No additional features)

Note:Digital three-phase voltmeterAccuracy: 0.5 level can be equipped with optional 485 communication, transmission output, input, alarm output, etc.

Digital three-phase voltmeter

1、 Function of digital three-phase voltmeter:

A digital three-phase voltmeter can directly measure three-phase voltage parameters in the power grid, with a measurement range of AC220V, AC400V, AC100V (expandable range through PT). It uses digital LED digital display to display parameters. A single-phase digital voltmeter has the advantages of high accuracy, strong isolation, stable electromagnetic compatibility, anti vibration, and high cost-effectiveness. A single-phase digital voltmeter can set PT and CT changes and can be used in energy management systems, substation automation, distribution network automation, residential power monitoring, industrial automation, intelligent buildings, intelligent distribution panels, and switchgear. It can directly replace the original pointer type single-phase voltmeter.

1. Digital three-phase voltmeter:Equipped with high-performance processing chips and independent measurement chips, it has high measurement accuracy and fast operating speed.
2The display magnification, communication address, baud rate, etc. can be set through the buttons on the panel, making it very flexible and convenient to use.
3. Digital three-phase voltmeter:Measure single-phase voltage parameters, CT can be set arbitrarily.
4. Adopting LED digital display, digital zero and digital calibration, high precision, and extremely high cost-effectiveness.
5. Digital three-phase voltmeter:Input voltage AC220V, AC400V, AC100V (range can be expanded through PT)
6. 0-20mA or 4-20mA analog output. Alarm output, monitoring the upper and lower limits of the measured parameters.

Shanghai Yadu Digital Three phase Voltage Meter

IIDigital three-phase voltmeterTECHNICAL INDEX

Accuracy of digital three-phase voltmeter: display accuracy of 0.5 level
Display: Using digital LED digital tube to display parameters

Digital three-phase voltmeter voltage input:
Rated values: AC220V, AC400V/AC100V (range can be expanded through PT)
Overload: continuous 1.2 times instantaneous: voltage 2 times (10 seconds)
Power consumption:<1VA (per phase)
Impedance:>300k Ω

Digital three-phase voltmeter power supply:
Working power supply: AC220V, AC/DC80-265V, AC380V, DC24V, DC48V power supply. Please specify when ordering
Power consumption: ≤ 5VA

Digital three-phase voltmeter output module:
Pulse output: 2-channel power pulse output, optocoupler relay, constant: 5000imp/Kwh (Kvarh)
Switching input: 2-channel or 4-channel switching input
Switching output: 2-channel or 4-channel switching output
Analog output: 1-4 channels
Communication interface: RS485 interface MODBUS-RTU protocol, baud rates of 1200, 2400, 4800, 9600 optional

Digital three-phase voltmeter isolation withstand voltage: input and power>2kV, input and output>1kV, power box output>2kV
Insulation resistance: ≥ 100M Ω
Working conditions: Environmental temperature: -10~55 ℃, relative humidity ≤ 93%, no corrosive gas field, altitude ≤ 2500m

3、 Selection table for digital three-phase voltmeter:

Digital three-phase voltmeter model	YK4U-24	YK4U-94	YK4U-34	YK4U-A4	YK4U-D4
basic function	Measure three-phase voltage
Communication (C)	1 route (optional)	1 route (optional)	1 route (optional)	1 route (optional)	not have
Transmission (M)	1-3 routes (optional)	1-3 routes (optional)	1 route (optional)	1 route (optional)	not have
Entering (K)	4-way (optional)	4-way (optional)	2 channels (optional)	2 channels (optional)	not have
Open (Alarm J)	2 channels (optional)	2 channels (optional)	2 channels (optional)	2 channels (optional)	not have
Panel size	120×120	96×96	80×80	72×72	48×48
Hole size	111×111	91×91	76×76	67×67	45×45
Power supply	Standard AC220V (except for communication and alarm, AC/DC80~265V power supply must be selected for other auxiliary functions), Optional power supply without auxiliary functionsA3: AC380VD2: DC24VD4: DC48VAD: AC/DC80~265V)

　3、 Example diagram of wiring for digital three-phase voltmeter

数显三相电压表

【Power series products】
	Digital single-phase ammeter:YK4I-21	DC current record table YA201R	Single phase current voltage power factor table: YK4UIH series	Single phase current recording table YA201R
	Digital three-phase ammeter: YK4I series	DC Voltage Record Table YA201R	Single phase current voltage frequency meter: YK4UIF series	Three phase current recording table YA203R
	Single phase voltmeter:YK4U series	Active Power Record Table YA201R	Single phase current voltage active power meter: YK4UIP series	Single phase voltage record table YA201R
	Three phase voltmeter: YK4U series	Reactive Power Record Table YA201R	Single phase current voltage reactive power meter: YK4UIP series	Three phase voltage record table YA203R
	LCD three-phase voltmeter:YK4U series	Frequency Record Table YA201R	DC voltmeter: YK5U series	Electricity Record Table YD300R

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