485 alternating current temperature sensor price service first 'the long-term effective information'

The characteristics of the current temperature sensor

both open loop and closed loop hole temperature sensor principle, basic performance difference is not big, basic advantage: fast response time, low temperature drift, high precision, small volume, wide frequency band, strong anti-jamming capability, overload ability.

how selection - — Current temperature sensor

A, choose current temperature sensors need to pay attention to the hole size can ensure wire can be through the temperature sensor;

B, choose current temperature sensor when the need to pay attention to the application environment for high temperature, low temperature, high humidity, earthquake and other special environment;

C, choice when need to pay attention to the space structure whether meet the current temperature sensor.

current temperature sensor using note

( 1) The better precision of current voltage temperature sensor is under the condition of the original edge rating, so when the measured current is higher than the current rating of temperature sensor, should choose the corresponding big temperature sensor; When the measured voltage is higher than the voltage rating, temperature sensor should readjust current limiting resistor. When the measured current is lower than the rating of 1/2 below, in order to get a better precision, can use more than the number of circle.

（ 2) Insulation withstand voltage of 3 kv temperature sensor can work for a long time in communication system and 1 1 kv and below. Dc system, 5 kv and below 6 kv temperature sensors can work for a long time in communication system, and 2 kv and below 2. Dc system 5 kv and below, be careful not to use overpressure.

what is the difference between current temperature sensor and current transformer?

ac/dc current temperature sensor can detect and measure communication communication, measuring dc dc, need an external power source.

only measuring AC current transformer, the output signal of AC 5 a or AC1A, don't need the power converter.

common current transformer can only measure the alternating current, if the open circuit can produce high voltage, ac current transformer breakdown line insulation, serious when produce blow electrical personnel security, so, when using secondary side cannot open circuit, short break secondary side must meet.