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Model: SD-TK96A SD-TK72A AC Ammeter
Model: SD-TK96V SD-TK72V AC Voltmeter
Accuracy class: 1.5.
For transformation current: 0.5A 1A 1.5A 2A 3A 5A.
For transformation ratio: The meters should be used with a current transformer of which primary current is 10A 15A 20A 25A 30A 40A 50A 60A 75A 100A 120A 15…10KA and external secondary current is 1A or 5A. As long as overload rate and the incoming current keep the same, dial scales of all medels in this series can be exchanged yet remain the accuracy.
Overload rate of ammeters: ①non-overload ②1.2 times
For through voltage: 100V 120V 150V 200V 250V 300V 400V 450V 500V 600V.
For transformation ratio: The meters should be used with a voltage transformer of which primary voltage is 400V 450V 500V 600V 1000V 1500V 2000V 3000V 500…450KV and external secondary voltage is 100V.
Overload rate of voltmeters: ①non-overload ②1.2 times
Product performance: All the meters are equipped with pure white silk-screen printing dial scale. The movement is made of intensive PBT plastics and high-performance magnetic materials so that it is vibration-resistant and heat-resistant. The case is made of oridinary ABS plastics or flame retardant ABS plastics, of which the resistant temperature can be up to 85℃. The base is made of PC plastics or flame retardant PC plastics, of which the resistant temperature can be up to 120℃. The resistant voltage is higher than 2000V. This kind of meter is easy to install which high-strengthen plastic grip piece by screwing down the nut so that the meter is of high immobility.
Measurement fearures: Each electromagnetic meter with a switch consists of a series of multi-position switches and a electromagnetic meter header. When the switch is dialed to the position of conventional letter of corresponding line, the scale mark that the pointer points to is the measured value. Electromagnetic meters with a switch can be merely used in AC circuits with TRMS. The advantages are high accuracy and simple structure, and they can as well be used in 50 Hz/60Hz circuits. The disadvantage is low overload capacity. Special frequency should be marked out in ordering.
