ELECTRODYNAMOMETER TYPE POWER FACTOR METERS Rated Accuracy : ± 3° (Electrical) as per BIS 1248 for Power Factor Meters.   A. SINGLE ELEMENT FOR SINGLE PHASE LOAD : MODEL -SPF1 CURRENT RANGE (choose anyone) 0.5/1, 1/2, 2.5/5, 5/10A POTENTIAL RANGE (choose anyone) 62.5/125/250, 125/250/500V, 150/300/600V B. SINGLE ELEMENT FOR 3 PHASE BALANCED LOAD : MODEL -SPF3 CURRENT RANGE (choose anyone) 5A or 1A POTENTIAL RANGE (choose anyone) 110V OR 440V C. DOUBLE ELEMENT FOR 3 PHASE 3 WIRE BALANCED LOAD : MODEL -DPF3 CURRENT RANGE (choose anyone) 0.5/1, 1/2, 2.5/5, 5/10, 10/20A POTENTIAL RANGE (choose anyone) 62.5/125, 110/440, 125/250, 250/500V, 300/600V ELECTRODYNAMOMETER TYPE WATTMETERS/VAR METERS Rated Accuracy ± 1.0% of full scale value as per BIS 1248 between 10% to 100% of the scale for Single phase UPF Wattmeters.   ± 1.5% of the full scale value as per BIS 1248 for Three phase Wattmeters.   ± 1.5% of the full scale value as per BIS 1248 for 0.2 P.F. (LPF) Single phase Wattmeters. Note : All Wattmeters are calibrated at cosØ = 1 and Varmeters at sinØ = 1   All Low Power Factor Wattmeters are calibrated at cosØ=0.2 lag   Other voltage and current ranges can be supplied on request, subject to technical feasibility. A) SINGLE PHASE SINGLE ELEMENT : MODEL -SPW1 (PF=1.0) No. of Current ranges No. of Potential ranges Current ranges available (choose any one) Potential ranges available (choose any one) 1 1 0.5, 1, 2.5, 5, 10A 150, 250, 300, 500, 600V 1 2 0.5, 1, 2.5, 5, 10A 75/150, 150/300, 250/500, 300/600V 1 3 0.5, 1, 2.5, 5, 10A 75/150/300, 150/300/600, 125/250/500V 2 1 0.5/1, 1/2, 2.5/5, 5/10, 10/20, 15/30A 100, 150, 250, 300, 500, 600V 2 2 0.5/1, 1/2, 2.5/5, 5/10, 10/20, 15/30A 50/100, 75/150, 125/250, 150/300, 250/500, 300/600V 2 3 0.5/1, 1/2, 2.5/5, 5/10, 10/20, 15/30A 62.5/125/250V, 75/150/300, 150/300/600, 125/250/500V B) SINGLE PHASE SINGLE ELEMENT LOW POWER FACTOR (0.2P.F.) : MODEL:SPLW CURRENT RANGE (choose anyone) 0.5/1, 1/2, 2.5/5A, 5/10A, 10/20A, 15/30A POTENTIAL RANGE (choose anyone) 62.5/125/250V, 75/150/300V, 125/250/500V, 150/300/600V C) (3 PHASE 3 WIRE) DOUBLE ELEMENT FOR BALANCED & UNBALANCED LOAD : MODEL : DPW3/DPVAR3 CURRENT RANGE (choose anyone) 0.5/1, 1/2, 2.5/5, 5/10, 10/20A POTENTIAL RANGE (choose anyone) 62.5/125 75/150, 125/250, 250/500, 110/440V, 300/600V OPTIONAL ACCESSORIES Carrying Case for Bakelite portable Meter is available as an optional accessory. To ensure longer service, the instrument should preferably be in a carrying case, particularly when stores are being transported in the field. DIMENSIONS