KEW5050

Wiring configuration		1P2W, 1P3W, 3P3W, 3P4W
Measurements and parameters		Ior : Leakage current (Trms) with resistive components only Io : Leakage current (Trms) with basic wave of 40 - 70Hz Iom : Leakage current (Trms) including harmonic components V : Reference voltage (Trms) with basic wave of 40 - 70Hz Vm : Reference voltage (Trms) including harmonic components R : Insulation resistance, Frequency(Hz), Phase angle(θ)
Other functions		Digital output, Print screen, Back light, Data hold
Recording Interval		200/400ms/1/5/15/30s/1/5/15/30m/1/2hours
Ior
	Range	10.000/100.00/1000.0mA/10.000A/AUTO
	Accuracy	For reference voltages of sine wave 40 - 70Hz and 90V Trms or higher, ±0.2%rdg±0.2%f.s. + clamp sensor amplitude accuracy + error of phase accuracy* (phase error) * add ±2.0%rdg to measured Io value when using Ior leakage clamp sensor. (θ: within the accuracy of reference voltage/ current phase difference ±1.0°)
	Allowable input	1% - 110% (Trms) of each range, and 200% (peak) of the range
	Display range	0.15% - 130% (display “0” for less than 0.15%, “OL” if the range is exceeded)
Io *Range, Allowable input and Display Range are the same as Ior .
	Accuracy	±0.2%rdg±0.2%f.s.+ clamp sensor amplitude accuracy
Iom *Range, Allowable input and Display Range are the same as Ior .
	Accuracy	±0.2%rdg±0.2%f.s.+ clamp sensor amplitude accuracy
	Measurement method	Sampling speed 40.96ksps (every 24.4μs), gapless, calculate Trms values every 200ms.
Voltage
	Range	1000.0V
	Accuracy	±0.2%rdg±0.2%f.s. * for waveforms of sine wave 40 - 70Hz
	Allowable input	10 - 1000V Trms, and 2000V peak
	Display range	0.9V - 1100.0V Trms (display “0” for less than 0.9V, “OL” if the range is exceeded)
Phase angle(θ)
	Display range	0.0° - ±180.0° (regarding the phase of reference voltage as 0.0°)
	Accuracy	Within ±0.5° for the inputs of 10% or higher of leakage current range, sine wave 40 - 70Hz, reference voltage of 90V Trms or higher.
Frequency meter range		40 - 70Hz
External supply		AC100 - 240V(50/60Hz) 7VA max
Power source		LR6(AA)(1.5V) × 6 (Battery life approx. 11h)
Display / update period		160 × 160dots, FSTN monochrome display / 500ms
PC card interface		SD card (2GB) *standard accessory
PC communication interface		USB Ver2.0
Temperature and humidity range		23±5°C, less than 85%RH(without condensation)
Operating temperature and humidity range		-10 - 50°C less than 85%RH(without condensation)
Storage temperature and humidity range		-20 - 60°C less than 85%RH(without condensation)
Applicable Standards		IEC61010-1 CATⅣ 300V , CATⅢ 600V Pollution degree 2 IEC61010-2-030 , IEC61010-031 , IEC61326
Dimension/Weight		165(L) × 115(W) × 57(D)mm/approx. 680g (including batteries)
Included accessories		7273(Voltage test lead) 8262(AC adapter) 7278(Earth cable) 7219(USB cable) 8326-02(SD card 2GB) 9125(Carrying case) Instruction manual, Cable marker, Software installation manual LR6(AA) × 6 KEW Windows for KEW 5050(software)
Optional accessories		8177(Ior Leakage clamp sensor 10A type Ø40mm) 8178(Ior Leakage clamp sensor 10A type Ø68mm) 8329(Power supply adapter)

Shows insulation resistance (R) values determined by the following formula.
V: Reference voltage/ Ior: Leakage current Displayed value is just for reference since the measurement method differs from insulation resistance testers and may not be consistent with each other.