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Expert Thermocouple & RTD &Temperature Sensor Manufacturer.

Thermocouple with compensation bimetallic thermometer line characters/use

Thermocouple with compensation bimetallic thermometer is to point to in a certain temperature range, with its matching thermocouple thermoelectric emfs wire of the same nominal value pair with insulation layer, use them to connect the thermocouple and temperature display control instruments, to compensate them with the error produced by the temperature change of the thermocouple junction. Thermocouple with compensation bimetallic thermometer is suitable for electric power, metallurgy, petroleum, chemical industry, textile industry and national defense, scientific research departments such as automatic temperature measuring meter of single point or multipoint connection. Thermocouple with compensation bimetallic thermometer features/purpose: thermocouple with compensation lead it is in a certain temperature range ( Including room temperature) With the matched the thermocouple thermoelectric emfs the nominal value of the same pair of wire with insulation layer, use them to connect the thermocouple and measuring devices, to compensate them with the error produced by the temperature change of the thermocouple junction. Divided into two kinds of extension and compensation. Bimetallic thermometer using thermocouple with compensation for long distances, due to the introduction of measurement error signal attenuation and interference thermocouple temperature measurement when the potential value of mV signal, because of the compensating conductor with length increase of signal attenuation and the magnetoelectric coupling interference, temperature display instrument and DCS system fluctuations in value. Processing method: 1, need long compensation wire laying, compensation conductor wire diameter should not less than Φ 1. 5 was, reduce the mV signal attenuation. 2, choose shielding type compensation conductor, and by grounding shield according to specifications ( Must make the grounding, shielding layer of the compensating conductor end grounding into instrument signal grounding network, it is forbidden to ground into electrical grounding network) To avoid introduction of measurement error due to shield grounding is not correct. 3, using the temperature transducer, the in situ thermocouple signal is converted into a 4 - 20 ma signal transmission, and improve the signal anti-interference ability.

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