2.Product Characteristics：

  UsePT secondary voltage is used as reference (secondary method) to measure resistive current.

  The electric field intensity signal is used as reference (induction plate method) and current analysis method. Instrument pairThe MOA current signal is analyzed by Fast Fourier Transform (FFT). According to the statistical principle, the corresponding data such as full current Ix, resistive current Ir and primary fundamental peak Ir1p of resistive current can be obtained directly by analyzing the data inside the instrument. And the operation is safe, convenient and fast. It is very convenient to use wireless transmission voltage as reference to measure resistive current.

  The instrument is also equipped with rechargeable batteries, calendar clocks, micro printers and data storage.100 groups, RS232 interface.

  3.Technical Specifications：

              Product model

     ETCR9740B

             Test mode

     Three-phase simultaneous measurement/wired/induction/wireless/single current

             Measurement range of leakage current

     RMS of 0~10mA, 50Hz/60Hz; Accuracy: +(Reading *5%+5uA)

             Accuracy of Resistive Current Fundamental Wave Measurement

(Quadratic method without interphase interference)

     (+5%+5uA)

             Accuracy of Resistive Current Fundamental Wave Measurement

(Current method)

     (+15%+5uA)

             Accuracy of Current Harmonic Measurement

     (+10%+10uA)

             Current Channel Input Resistance

     Less than 2 Omega

             Reference Voltage Input Range

     25V~250V RMS, 50Hz/60Hz; Accuracy: +(Reading *5%+0.5V)

             Accuracy of Voltage Harmonic Measurement

     (+10%)

             Reference Voltage Channel Input Resistance

     More than 300K Omega

             Input range of electric field intensity

     30kV/m~300kV/m; Accuracy: +(reading *10%)

             Accuracy of electric field harmonic measurement

     (+10%)

             Internal Battery Working Time

     6 hours in a row

             Charging power supply

     100V to 250V, 50Hz/60Hz

             data storage

     120 group

             communication interface

     RS232

             Printer

     Yes

             Instrument size

     35 cm (long)x 28 cm (wide)x 18 cm (high)

             Instrument weight

     5kg (excluding cable packages)

             Random attachment

     Host 1; Electric field sensor 1; Current and voltage input 4; Power supply 1; Charger 1; Signal generator 1; Toolkit 1.