• Provides simultaneous measurements and logs up to 4 channels
• Supports various wiring systems (Single-phase 2&3-wire, Three-phase 3&4-wire)
• World’s fastest 200ms interval for leakage current measurement
• Offers both traditional leakage / load current measurements
• Large graphic display and magnet on the back case to attach it on metal enclosures
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 .
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.