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Ampere Meter > AC Ampere Meter
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The types of operating principle of ammeter are the rectifier type and the moving iron type, and the rectifier type ammeter has a merit of measuring small current value compared with moving iron type |
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¤ýTo deal with current exceeding 5A, use a 5A(1A) meter in combination with a C.T. ¤ýA.C ammeter is used with a current transfomer externally mounted, and it is noted that primary current of a current transfomer and a full scale of the meter are identical when used. ¤ýIf the circuit voltage exceeds 500V even when the current is less than 5A use a 5A(1A) meter in combination with a C.T to ensure insulation. ¤ýThe scale range of ammeter for motor circuit is extended up to 150%~500% of rated current, so that these are proteced from the impact of the starting current and ensured of long life. ¤ýAm expanded scale has the nirmal maximum reading(upper limit of effective measurement range) at the app. 65% point on the scale, and the rest of it(65%~100%) is devoted to extension reading.(tolerance of extension area : ¡¾5%) |
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Çü ½Ä |
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Á÷°á»ç¿ë |
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CT »ç¿ë |
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ÃÖÀúÃøÁ¤Ä¡ |
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ÃÖ´ëÃøÁ¤Ä¡ |
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ÃÖÀúÃøÁ¤Ä¡ |
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ÃÖ´ëÃøÁ¤Ä¡ |
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rectifier type |
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100mA |
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30A |
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* / 1A |
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* / 5A |
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iron type |
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30mA |
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30A |
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* / 1A |
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* / 5A |
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Shape of case |
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Type |
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Rated Curr. |
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Operating Princ |
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Accur(%) |
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Freq |
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Berden(VA) |
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Rectangular(60x60mm) |
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D-60 |
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AC DC |
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5A 50,60mV |
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¡¾2.5 ¡¾2.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(60x80mm) |
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D-68 |
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AC DC |
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5A 50,60mV |
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¡¾2.5 ¡¾2.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(80x60mm) |
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D-80 |
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AC DC |
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5A 50,60mV |
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¡¾2.5 ¡¾2.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(100x83mm) |
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D-100 |
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AC DC |
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5A 50,60mV |
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¡¾1.5 ¡¾1.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(80x80mm) Wide Angle |
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D-800 |
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AC DC |
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5A 50,60mV |
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¡¾1.5 ¡¾1.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(110x110mm) Wide Angle |
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D-110 |
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AC DC |
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5A 50,60mV |
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¡¾1.5 ¡¾1.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(70©ª) |
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D-70 |
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AC DC |
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5A 50,60mV |
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¡¾2.5 ¡¾2.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(72x72mm) |
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D-200 |
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AC DC |
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5A 50,60mV |
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¡¾1.5 ¡¾1.5 |
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50~60Hz |
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1.0 50mV Drop |
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Rectangular(98x98mm) |
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D-300 |
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AC DC |
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5A 50,60mV |
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¡¾1.5 ¡¾1.5 |
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50~60Hz |
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1.0 50mV Drop |
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