Wybór z zacisk typ amperomierze
1. Dla informacji na wybór z zacisk amperomierz, proszę logowanie do: Skrzynia biegów i dystrybucja Sprzęt sieć
(1) Po pierwsze, it should be clear whether the measured current is AC or DC. The rectifier clamp type amperomierz is only suitable for measuring power frequency currents with low waveform distortion and little frequency change, otherwise it will result in significant measurement errors. for electromagnetic clambers, the ugięcie property of the movable part of theasuring mechanism is independent of the polarity of the current. Dlatego, it can be used to measure both AC current and DC current, ale the accuracy is usually relatywly low. The accuracy of clamp type amperometers mainly includes levels 2.5, 3, and 5, and should should selected based on measurement technical requirements and actual situations.
(2) For digital clamp ammeters, the reading of their measurement results is intuitive and convenient, and the measurement functions have also been expanded to measure parameters such as resistance, diode, voltage, active power, reactive power, power factor, frequency, etc. However, digital clamp ammeters are not perfect. When electromagnetic interference in measurement situations is severe, the displayed measurement results may experience discrete jumps, making it difficult to confirm the actual current value; If a pointer type clamp type ammeter is used, due to the damping effect of the magnetoelectric mechanical meter head itself, its response to strong electromagnetic field interference is relatively slow. At best, the meter needle produces a small amplitude of oscillation, and its reading range is relatively intuitive, making it relatively easy to read.
2. Inspection of clamp ammeter before use
Skoncentruj się na sprawdzaniu czy izolacja materiał (guma lub plastik) na szczęki spadł odpadł lub zepsuty% 3b integralność z całość obudowa % 2c w tym wskaźnik głowica szkło % 2c bezpośrednio wpływa pomiar i obejmuje wydajność z instrumentu 3b również sprawdź jeśli zero punkt jest poprawny. Jeżeli zegarek igła jest nie at the zero point, it can be adjusted through the adjust mechanism; for multi-purpose clamp type ammeters, the test wire and bars should also be checked for damage, with good conductivity and insulation required; for digital clamp amperometry, it is also necessary to check if the battery level inside the meter is enough, and update it if it is insufficient.
