Double Clamp Digital Phase Meter

Double Clamp Digital Phase Meter is special designed for testing voltage, current and phase on site, it is in high-
precision, low price, portable hand-held, dual-channel input measuring product. It's easy to measure the phase
between U-U, I-I and U-I, identify the inductive circuit, capacitive circuit and the phase sequence of three-phase
voltage, detect the wiring group of transformer, test the secondary circuit and bus differential protection system,
read the phase relationship among the CT groups of a differential protection system, and check if the watt hour
meter was correctly wired.Features:
Ingenious structure, easy to operate, hand held structureno need to disconnect circuit or change range under 10mA-10A, 3V-500vwhen test phaseHigh contrast LCD, characterscan be 25mm, screen angle can be 70°to obtain the best visual effectsReasonable function and layout of the switch, rotate toread the measuring voltage, current phase.High resolution, withnew type patent current clamp, current voltage resolution up to 0.1mA 0.1V.Low power consumption, with the function of testing the voltage of battery
1.base Conditions and Working Conditions:
Influence Quantitybase ConditionAmbient Temperature23ºC±5ºCAmbient Humidity45%~75%RHSignal Waveformsine wave, β=0.02Signal Frequency50HZ±0.2HZExternal ElectricMagnetic FieldTo be avoidedPosition of measured current carrying wireinclamp jawOptionalpositionTest signal amplitude range when measuring phase100~220V,0.5A~1.5ALimits of Rated Working ErrorUnder ratedcondition,the limits of the rated operating error will not exceed twice the limits of intrinsic error.2.Intrinsic Error and Performance Indicators under base ConditionsMeasure RangeResolutionLimits of intrinsic errorVoltage20V0.01V±(1.2%RD+2)200V0.1V±(1.0%RD+2)500V1V±(1.2%RD+2)Input Impedance:2MΩ for all the measure range.Circuit Impedance of input voltage when measuring phase of U1-U2:40KΩMeasure RangeResolutionLimits of intrinsic errorAC current200mA0.1mA±(1.0%RD+2)2A1mA±(1.0%RD+2)10A10A±(1.0%RD+2)PhasesU-U,U-I,I-I0~360°1°±3°3.General SpecificationDisplay3 1/2Sampling rate3 times per secondPower supplySingle 9V laminated cellcurrent of power is less than 5mADimensionsMeter shell186x86x33mm3Clamp shell140x40x19mm3Nipper jawΦ7mmx8mmWeightMeter body280gMeasuring clamps2x200gStorage ConditionsTemperature-10ºC~50ºC
The meter can withstand1000V/50Hz between voltage input terminaland thecase, 500V/50Hz(AC sine wave) Between input joint U1 and U2, time 1 minutes.
Insulation resistance between circuit and case, between two voltage terminals: ≥10MΩ