Our Products

3 Phase Watt Meter

"Delta" have been the pioneers of Digital Wattmeters in India since 1981. During this period, virtually thousands of Delta's power measuring instruments have made their mark in very wide range of applications/industries. Now a series of compact (96mm x 48mm) wattmeters have been introduced, which have many advantages compared to similar available products in the market.

  • Self-contained instruments - do not have external transducer boxes
  • Very wide pi operating range: = +0.1 to 1.0
  • Extremely low insertion losses: does not require watt-loss error adjustments for potential and current circuits
  • True-RMS type readout, takes care of current distortions with high harmonics
  • Performance unaffected by supply frequency changes, ambient temp, variations, etc
  • Two of these can be used, with ext. C.T.'s for 30-3Wire power measurements
  • Applications range from appliance manufacture, lighting, motor/pump, transformers and other electrical equipment industries

Digital Wattmeters for Single Phase Applications

Model MWT-20 MWT-50 MWT-200 MWT-500 MWT-2000
Range 0-20.00W 0-50.0W 0-200.0W 0-500W 0-2000W
Resolution 10mW 0.1W 0.1W 1W 1W
Voltage Input (Overload) 0-500V(RMS)(IkVpeak) 0-500V(RMS)(IkVpeak) 0-500V(RMS)(IkVpeak) 0-500V(RMS)(IkVpeak) 0-500V(RMS)(IkVpeak)
Current Input(Overload) 100mA(RMS)(2A surge) 0-100mA(RMS)(2A surge) LOOA(RMS)(10A surge) O-I.OOA(RMS)(10A surge) 0-10.00A(RMS)(20A surge)
voltage Input Impedance 1.5 Mohms 1.5 Mohms 1.5 Mohms 1.5 Mohms 1.5 Mohms
Current Input Impedance 0.5 ohms 0.5 ohms 0.045 ohms 0.045 ohms 0.01 ohms

 

Accuracy : ±0.5% of F.S.D. ±1 digit (50Hz)
Panel Cut-Out : 91mm W x 45mm H Zero
Stability : ±1/2digits/IOC (TYP) Freq.
Response : 10Hz to 10kHz
Aux. Supply : 230 VAC + 10%@10VA
Display : 3 \ digits, 12.5mm LEDs
P.F. Range : 0.1 (LAG) -1.0 -0.1 (LEAD)
Overload Indication : Digit 'V remaining ON and other digits blanking OFF