ຮັບສ່ວນຫຼຸດພິເສດຕາມປະລິມານ, ອັບເດດລາຄາຂາຍສົ່ງ ແລະ ການແຈ້ງເຕືອນສິນຄ້າໃໝ່ສົ່ງກົງເຖິງອິນບັອກຂອງທ່ານ.
ໂດຍການສະໝັກສະມາຊິກ, ທ່ານຍອມຮັບ ເງື່ອນໄຂການໃຫ້ບໍລິການ ແລະ ນະໂຍບາຍຄວາມເປັນສ່ວນຕົວ ຂອງພວກເຮົາ.
ເຂົ້າເຖິງຜູ້ຊ່ຽວຊານທີ່ໄດ້ຮັບການຢັ້ງຢືນຂອງພວກເຮົາໂດຍກົງ
Error of fundamental voltage: ±0.2%; Error of voltage deviation: ±0.2%
Error of fundamental voltage: ±0.5%
Error of frequency deviation: ±0.01Hz; measurement range: 45~55Hz
Three phase voltage imbalance:
• Absolute error of voltage imbalance 0.2%
• Absolute error of current imbalance 1%
• Phase sequence component of voltage & current: 0.5%
Measurement error of voltage fluctuation: ±5%; Measurement error of flicker: ±5%
Harmonic accuracy: class A
Measurement range of instrument of class A: 0~2500Hz, used for accurate measurement. Measured phase error is less than ±5° or ±1×h°.
Inter-harmonics: the requirement is the same as harmonics.
Electrical parameters
Power supply: AC 220V±10%; 50Hz±0.5Hz; harmonic distortion≤15%
Current signal input
• Rated value In: 5A, 60A/600A/600A (1pc flexible probe is optional)
• Measurement range: AC10mA~6A, 10mA~6000A (1pc flexible probe is optional)
• Power consumption: ≤0.5VA/channel
• Overload capacity: 1.2In, continuously working; 2In 1s is allowable
Voltage signal input
• Rated value Un: 57.7V/100V, 220V/380V(customized), 400V/690V;
• Measurement range: AC 0.5V~120V, 0.5V~450V(customized); 0.5V~1000V(customized)
• Power consumption: ≤0.5VA/channel
• Overload capacity: 1.3Un, continuously working; 1.4 Un, 1s is allowable
Use conditions
• Normal working temperature: -10℃~+55℃
• Working temperature limit: -20℃~+65℃
• Relative humidity: 5%~95%
• Protection class: IP50
