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From full scale of 10% to 120%, the nominal reading accuracy can be achieved. Some sensors can achieve the nominal reading accuracy from 1% to 120%.

Most of our current sensors are non‑stepped, ensuring output accuracy across a very wide dynamic range. The test instruments and standard meters have built-in stepping functions with automatic switching, eliminating the need for manual range adjustment. Among them, the CTM series current sensors offer stepped functionality, allowing on-site physical button selection or remote control via the 485 bus.

You should select a sensor with a DC measurement range of 2000A. The specific calculation is: AC 1500A × 1.414 = 2121A, so you can use the 2000A current sensor. Our CTW series current sensors have a nominal range specified for AC values; selecting the CTW-1500 will meet the requirements.

It connects to a computer via host‑computer software for data reading, and its storage capacity is comparable to that of a computer’s memory. Additionally, the standard recording interval is 100ms, and it can also be customized to record 1 seconds at 100 points.

RD refers to reading accuracy, and RG refers to full-scale accuracy.

(1) Very small zero offset, at the microampere level (2) Zero temperature drift (3) Short response time (real-time response) (4) Accuracy up to the ppm level. (5) Can simultaneously measure both AC and DC currents (6) Low noise

The key metrics to monitor are: 1 electromagnetic interference immunity, 2 output signal type, 3 maximum AC and DC current values, 4 bandwidth, 5 aperture, 6 temperature and response time, and 7 accuracy.

It depends on the specific requirements of the customer when developing high-precision instruments, with particular attention to the temperature coefficient and accuracy of the resistor. For details, refer to “How to Select a High-Precision Current Sensor Followed by a Sampling Resistor.” Our company also offers corresponding IV converters that can accurately convert current output into a voltage signal, facilitating on-site use. In addition, we provide power supplies integrated with IV converters, which output signals directly from the PSU.

Our current sensor operates normally within the 120% range; when the measured current exceeds this range, the sensor enters a self‑recovering state, and the output signal becomes non‑proportional to the input signal, rendering the output invalid. Once the current drops below the maximum overload threshold, the sensor automatically recovers.

The standard sensor, calibrated by an authoritative third-party metrology institution, is tested and verified using the E FLUKE 2 5522 source—standard source plus the E FLUKE A 8508A eight-and-a-half-digit multimeter. Externally, calibration is performed by the National Institute of Metrology, China.