DC leakage current sensor - Weikewei - milliampere level measurable, factory direct sales
DC leakage current sensor is used to measure milliampere level DC current (AC) in a primary wire
And direct current (DC) components. This sensor uses "magnetic modulation" technology to compensate for the AC component in the primary conductor by introducing a bias magnetic field. The bias magnetic field is generated by an internal square wave oscillator, which balances the alternating current magnetic field of the main conductor.
● Integrated AC/DC leakage current, small size, easy installation;
Adopting ARM_Crtex M0+processor and 12 bit high-precision ADC, with fast processing speed and high accuracy;
Adopting a closed-loop negative feedback control system, it has high stability and small zero drift;
Low power design, with a total power consumption of less than 0.3W;
● 1 RS485 output: standard Modbus RTU protocol;
● Dimensions (mm): 72 (L) × 18.5 (W) × 65 (H); Aperture: ± 20mm
Input range: 0~± 10mA
Accuracy level: ≤ 1.0% F.S
● Linearity: better than 1%
Response time: ≤ 1S
● Imbalance current: ≤ 100uA
Temperature characteristics: ≤ 150PPM/℃ (0-50 ℃)
● Power consumption of the whole machine: ≤ 300mW
● Isolation and voltage resistance: AC 2.0KV/min * 1mA between input/output/enclosure
Flame retardant properties: UL94-V0
Working environment: -25 ℃~65 ℃, 20%~90% no condensation
Storage environment: -40 ℃~80 ℃, 20%~90% no condensation