Description
- Brand Name: NoEnName_Null
- DIY Supplies: ELECTRICAL
- Model Number: ETCR740A
- Supply Voltage: 100V to 250V, 50Hz/60Hz
- Display Type: Digital Only
- Operating Temperature: -10C~50C
- Accuracy Class: ( 10% 10uA)
- Dimensions: 35 cm *28 cm*18 cm
Measuring Zinc Oxide ArresterThe resistance current of MOA is measured and analyzed to determine the moisture and aging degree of MOA.
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 |
ETCR9740A |
|
|
|
Test mode |
Three-phase simultaneous measurement/wired/induction |
|
|
|
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; Toolkit 1.
|
|
|
Z.L.T
2019.7.16
