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Electric safety equipment
NR5230 series multifunctional electric energy meter field calibrator
This product is suitable for testing low-voltage electric energy metering devices. At the same time, it is suitable for the relevant requirements of the electric energy meter field calibrator. The test function characteristics of the electric energy metering device are: the overall error of the low-voltage electric energy metering device can be directly measured through the connected high-current clamp meter, and the basic error of the electric energy meter can be measured; the wiring error of the secondary circuit can be detected; Phase four-wire system current, voltage, phase, frequency, power (active, reactive, apparent), power factor, vector diagram, etc.
◆ The instrument uses an insulated and shock-resistant shell, which is small in size, light in weight, and easy to carry on site;
◆ There are two ways of current input: direct input and clamp input;
◆ The voltage sampling adopts a high-impedance (≥20KΩ) surface insulation design cable clamp to connect the TV secondary voltage or low-voltage line bar. In addition to the power supply of the measuring terminal, the instrument also has a 220V auxiliary power supply, which is convenient for use in various occasions;
◆ Various parameter information is displayed on large screen LCD. The display screen, terminal block, socket, and keyboard are integrated, which is convenient to carry and operate on site.
◆Voltage measurement range: 0~400V, 57.7V, 100V, 220V, 400V four gears automatically switch the range.
◆Current measurement range: 0~5A, built-in transformer is divided into 5A (CT) gear. The clamp transformer has six gears: 5A (small clamp), 25A (small clamp), 100A (medium clamp), 500A (medium clamp), 400A (large clamp), and 2000A (large clamp). (Among them, medium-sized clamp meters and large-sized clamp meters are optional)
◆Phase angle measurement range: 0~359.999°.
◆Frequency measurement range: 45~55Hz.
◆Accuracy
Voltage: ±0.5%
current: ±0.5% (clamp transformer ±0.5%)
Active power: ±0.5% (clamp transformer ±0.5%)
Reactive power: ±0.5% (±0.5%) (clamp transformer ±1.0%)
Active energy: ±0.5% (clamp transformer ±0.5%)
Reactive energy: ±0.5% (±0.5%) (clamp transformer ±1.0%)
Frequency: ±0.1%
Phase: ±0.2°
◆Power quality
Fundamental wave voltage and current amplitude: fundamental wave voltage allowable error≤0.5%F.S.; fundamental wave current allowable error≤1%F.S.
The measurement error of the phase difference between the fundamental voltage and current: ≤0.5°
Harmonic voltage content rate measurement error: ≤0.1%
Harmonic current content rate measurement error: ≤0.2%
Three-phase voltage unbalance error: ≤0.2%
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ADD：Building c3-09b, optical valley core center, 303 Optical Valley Avenue, Donghu New Technology Development Zone, Wuhan, China
Hotline：400-027-1230
Tel：+86-27-87690177
+86 177 6240 6910
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+86-133 6724 1932
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