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Product Details

PMAC735 Three phase modbus LCD multifunction power meter

Features:

Product Description

1. Suit for LV/ HV voltage system

2. Compact design with all real-time measurement

3. Consist of basic unit and optional modules

4. 10 years back-up of integrated energy data

5. Large LCD, high brightness, auto-scrolling

6. High accuracy, V or I is 0.2%, kWh is class 1

7. CT and PT programmable

8. Pluggable terminals, easy to install

9. Panel size: 96 x 96mm

10. Password protect

PMAC735 digital Power Meter Basic Function:

Provide one RS485 communication, measures and display real-time parameters:

1. Voltage—Ua, Ub, Uc, Uab, Ubc, Uca

2. Current—Ia, Ib, Ic, In

3. Active power – Pa, Pb, Pc, ∑P

4. Reactive power –Qa, Qb, Qc, ∑Q

5. Apparent power—Sa, Sb,Sc, ∑S

6. Power factor—PFa, PFb, PFc, ∑PF

7. Frequency

8. Active energy—kWh (4 quadrant)

9. Reactive energy– kvarh (4 quadrant)

10. Demand and Max. record for I, P, Q, S

11. Unbalance rate for U, I

12. Max./ Min. value

PMAC735 Digital Power Meter DI/ DO Modules:

1. 4 status input + 4 relay output

2. 8 status input + 2 relay output

3. 8 status input + 2 pulse output

4. Profibus communication module

PMAC735 Digital Power Meter Optional Function:

1. Up to 31st harmonic analysis, K factor, THD

2. SOE (event log)

3. One 4~20mA analog output

TECHNICAL SPECIFICATION

Metering	True RMS, 1 sec refresh time
Input	Rate current: 1A or 5A Rate voltage: direct 120 ~277Vph-N, (optional) PT secondary 57.7/ 100V Frequency: 50/ 60Hz
Overload	120% of rated, continuously Instantaneous current: 10 times/ sec Instantaneous voltage: 2 times/ sec
Status input (optional)	≤8 channels, provides 30VDC power if it is dry contact
Relay output (optional)	≤4 channels, Node capacity: 220VAC/5A, 30VDC/5A
Analog output (optional)	1 channel, 4~20mA, load resistance: 400 Ω
Pulse output (optional)	2 channels, Pulse width: 80ms Pulse constant: 1000~40000 programmable 1 pulse = (1÷ pulse constant ×PT ×CT) kWh

Power frequency withstand voltage	AC 2KV/minute
Insulation resistance	≥50MΩ
Impulse withstand voltage	4kV (peak), 1.2/50uS

Power supply	85~265VAC, 80~300VDC Or 24-48VDC (optional)
Power loss	<2VA
Communication	RS485 serial, support Modbus-RTU Baudrate: 4800, 9600, 19200, 38400bps Address: 1~247
Dimension (L x W x H)	Panel: 96 x 96 x 18 mm Cut-out: 89.5 x 89.5 x 65 mm (+0.5mm)
IP index	IP54 (front panel) and IP20 (case)
Weight	Approx. 500gr.

Parameter	Accuracy	Resolution	Measuring Range
Voltage	0.2%	0.01V	Directly: 300Vph-N, 520Vph-ph
Voltage	0.2%	0.01V	PT primary: 0~499,999V PT secondary: 57.7Vph-N, 100Vph-ph (Note: when PT ratio is non-integer, voltage range is 0~ 49,999V)
Current	0.2%	0.001A	CT primary: 0~49,999A CT secondary: 1 A or 5A
Power	0.5%	0.1W/ var	each phase: 0~100 MW/ Mvar
Power factor	0.5%	0.001	-1.000~+1.000
Frequency	0.01	0.01Hz	35~ 65 Hz
Active energy	1.0%	0.1kWh	0~ 99,999,999.9 kWh
Reactive energy	2.0%	0.1kvarh	0~ 99,999,999.9 kVarh
THD	1.0%	0.001	0~100.0%
Individual harmonic	1.0%	0.001	0~100.0%
Un-balance	1.0%	0.001	0~100.0%

DEMENSION