Digital Wattmeter – Hanyoung Nux WM3

Features

  • True R.M.S Measurement
  • Direct connection type(non transducer)
  • Effective power display by measuring Voltage and Current(4 digits, up to 9999)
  • wide measurement range of 0 ~ 220 V AC, 0 ~ 5 A AC(Current transformer used)
  • Universal transformers (1A, 5A) and special transformers available
  • Various output types(Ralay, Current 4-20 mA, TR, RS485)
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Digital Wattmeter
Model : WM3

  • True R.M.S Measurement
  • Direct connection type(non transducer)
  • Effective power display by measuring Voltage and Current(4 digits, up to 9999)
  • wide measurement range of 0 ~ 220 V AC, 0 ~ 5 A AC(Current transformer used)
  • Universal transformers (1A, 5A) and special transformers available
  • Various output types(Ralay, Current 4-20 mA, TR, RS485)

Specification

Power Supply  100 – 240 V a.c. 50/60 Hz Allowable percentage of voltage difference : 85~110%
Power consumption  6 V A
Display type  7 Segment LED display
Insulation resistance  Above 100 MΩ(500 V d.c mega standard) between external terminal and case
Max voltage durability  Above 2000 V a.c, per 1 min between external terminal and case
Max noise durability  Square wave noise due to noise simulator, pulse width 1 µs ± 1000V
Max vibration
durability		  10-50 Hz Malfunction, double amplitude in each 0.5mm X, Y, Z direction for 1 hour
10-50 Hz Durability, double amplitude in each 0.75mm X, Y, Z direction for 2 hours
Max shock durability  100 m/²s Malfunction each X, Y, Z direction for 3 times
300 m/²s Durability each X, Y, Z direction for 2 times
Ambient temperature  -10 ~ 55℃ (No freezing allowed)
Ambient humidity   Relative humidity 35 ~ 85% R.H
Ambient environment   Corrosives gas not allowed
Storage ambient temperature   -20 ~ 65% ℃ (No freezing allowed)
Relay life   Mechanically : 20,000,000 ps Min. Electrically : 100,000 ps Min.
Weight   Approximately 300g
Measurement type  Cycle measuring type, cos ø =LEAD 0.8 – 1 – LAG 0.8
Display cycle  Min. : 0.1 second, Max. 2 second
Displayable number of digits  -1999 ~ 9999 (4 digits standard)
Measuring list  Power consumption
Input range  0-240 V a.c. 50/60 Hz
Function of decimal point  0-240 V a.c. 50/60 Hz
Function of scaling  Function of displaying temporal numerical values which is converted from measured (input)
Hold function  Automatic max and min Peak value detection hold and external hold
Control  Displaying value hold
Other functions Remote local switching(communication output type)
• Display max / min value by front key
• Function of handling average value and delaying displaying cycle
• Changing comparative output setting
• Set value changing protective function
Output type • Relay contact output
•Transistor output (NPN, PNP)
• Current output(4-20mA)
• Communication output(RS485)

Ordering Code

Model code Information
WM – Digital Wattmeter
External dimension 3 External dimension(96mm X 48mm)
Type of phase 1 Single phase 2 W
Measurement input specification 01(※) XXX: 5A (Ageneral C.T uses) Current transfrom ratio setup(C.Texcluded)
02(※) XXX: 1A (Ageneral C.T uses) Current transfrom ratio setup(C.Texcluded)
03 0 ~ 2.5A(H-1W C.T uses) 0-500.0 W Max(C.T included)
04 0 ~ 5A(H-1W C.T uses) 0-1100 W Max(C.T included)
05 0 ~ 10A(H-1W C.T uses) 0-2200 W Max(C.T included)
06 0 ~ 15A(H-1W C.T uses) 0-3300 W Max(C.T included)
07 0 ~ 30A(H-2W C.T uses) 0-6600 W Max(C.T included)
08 0 ~ 50A(H-2W C.T uses) 0-11.00 KW Max(C.T included)
09 0 ~ 80A(H-4W C.T uses) 0-17.60 K W Max(C.T included)
10 0 ~ 100A(H-4W C.T uses) 0-22.00 K W Max(C.T included)
11 0 ~ 150A(H-5W C.T uses) 0-33.00 KW Max(C.T included)
12 0 ~ 200A(H-5W C.T uses) 0-44.00 K W Max(C.T included)
Output specification(option) N only for display
0 Relay (HI, GO, LO) + Current output(4-20 mA)
1 Relay(HI, GO, LO)
2 NPN TR(HI, GO, LO) + Current output(4 – 20 mA)
3 PNP TR(HI, GO, LO) + Current output(4 – 20 mA)
4 NPN TR(HI, GO, LO) + RS485 Output
5 PNP TR(HI, GO, LO) + RS485 Output

C.T( Current Transfomers)
※ Spec 01 and 02 use general current transformer and users must set current transform ratio(Refer to setting method of current transform ratio)
spec 03 ~ 12 are accurate measuring wattmeter which uses H series C.T of accuracy 0.2%.

Cautious)spec of 03 ~ 12 cannot use general current transformer and it is unnecessary to set current transform ratio .
– Type of measuring spec is single phase 2 lines and when current transformer is 200 A : 5 A, then please purchase WM2-101 and use it. (if current transformer is 200A : 1A then please use WM3-101)
– Initial current transformer setting for spec 01 and 02 is set with 100 A
– Output spec 0 ~ 5 are option
– PV (output displaying value)
– RS485 output spec is coming soon

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