PopularreplacementstylemeterRuggedblackphenoliccaseAccuracyWattmeters:MovementSuspensionTrackingShieldingResp***eTimeOverload(1sec.)Overload(Continuous)RepeatabilityDialResistancePointerScaleLengthNetWeight&plu***n;2%fullscale(F.S.)(iron-vane),&plu***n;3%rectifier)&plu***n;2%F.S.;Compensatedmeters:&plu***n;3%F.S.Models57,59,157Iron-vane,magneticallydampedWattmeters:DynamometerAllothers:Annular,rectifiertype,elf-shieldingPivotandjewel;“T”styles:tautband&plu***n;3%Calibrationisunaffectedbymagneticpanelmounting1.5secondsmaximum10timesF.S.1.5timesF.S.2%,tautband:.5%Sharpclearscale.Eachdialarciscalibratedtotrackthespecifictypeofmovementused&plu***n;15%ofmeterimpedanceSpadepointerwithblack,mattefinishModels177&157:1.6”(40.6mm)Models147,127&127T:1.8”(45.7mm)Models57&77:2.3”(58.4mm)Models27,27T,&47:2.5”(63.5mm)Models59&79:3.50”(89.0mm)Models29,29T,&49:3.9”(99.0mm)Models57&157:5oz(0.14kg)Models127,127T&147:7oz(0.20kg)Models27,27T,47&59:8oz(0.23kg)Models77&177:9oz(0.26kg)Models29,29T&49:11oz(0.31kg)Model79:12oz(0.34kg))