thermostat accuracy analysis
Bimetal thermostat temperature control accuracy, each customer is more concerned about this issue,Yaxun Electronics Technicians conducted a detailed analysis,This is for your reference.
Bimetallic thermostat is based on the physical phenomenon of bimetallic temperature control,Thermal expansion and contraction of the characteristics,Bimetal with the temperature coefficient of expansion of different,Bimetal is based on this principle to work,So the quality of bimetal will affect the accuracy of the thermostat,The accuracy of the current market products are ± 5 ℃.
But we have to explain,Thermostat has two temperature points:Disconnect temperature | reset temperature.The accuracy of these two temperature points is not the same,We often say that the product control accuracy is the thermostat to set the protection temperature,To prevent electrical failure, the set temperature point,Thermostat has two kinds of work: normally open type | normally closed type,Their protection temperature control is the opposite.
1, normally closed thermostat set the temperature point is "off temperature"If the product accuracy is ± 5 ℃,For example: we buy the product is 120 ℃,Then his disconnect temperature between 115 ℃ ~ 125 degrees, are qualified products.Reset the temperature of the relative accuracy will be much lower,General factory set reset temperature of ± 15,Off temperature and reset the difference between the temperature point 30 ℃,For example: 120 ℃ products,Its reset temperature is 90 ℃ ± 15,The reset temperature of the product is between 75 ° C and 105 ° C, which means a qualified product.
Bimetal temperature controller reset control chart:
2. Normally open thermostat set the temperature point is the "reset temperature"When the set temperature is reached,Thermostat connected to current,For example: buy 100 ℃ temperature opening,His reset temperature is 95 ℃ ~ 105 ℃ is qualified products,Off temperature at 55 ° C to 85 ° C.
Bimetal Thermometer Disconnect Control Chart:
Bimetal thermostat After years of development,Has become an important thermal protection of various electrical components,Customer requirements are becoming more stringent,Customer requirements of the product accuracy of ± 1 ℃, ± 2 ℃, ± 3 ℃ and so on,To the factory to bring a very stringent requirements,Product price will be much higher,High-precision thermostat requires high-precision bimetal,But also for product screening,100 products may only have 20 precision 1% qualified products.
Some customers more stringent products,Require reset temperature and disconnect the temperature between, 10 degrees apart,Such as: off temperature 20 ℃ ± 3 ℃,Reset temperature 30 ℃ ± 3 ℃, Yaxun electronic custom for different customers high-precision thermostat.
Bimetallic thermostat is based on the physical phenomenon of bimetallic temperature control,Thermal expansion and contraction of the characteristics,Bimetal with the temperature coefficient of expansion of different,Bimetal is based on this principle to work,So the quality of bimetal will affect the accuracy of the thermostat,The accuracy of the current market products are ± 5 ℃.
But we have to explain,Thermostat has two temperature points:Disconnect temperature | reset temperature.The accuracy of these two temperature points is not the same,We often say that the product control accuracy is the thermostat to set the protection temperature,To prevent electrical failure, the set temperature point,Thermostat has two kinds of work: normally open type | normally closed type,Their protection temperature control is the opposite.
1, normally closed thermostat set the temperature point is "off temperature"If the product accuracy is ± 5 ℃,For example: we buy the product is 120 ℃,Then his disconnect temperature between 115 ℃ ~ 125 degrees, are qualified products.Reset the temperature of the relative accuracy will be much lower,General factory set reset temperature of ± 15,Off temperature and reset the difference between the temperature point 30 ℃,For example: 120 ℃ products,Its reset temperature is 90 ℃ ± 15,The reset temperature of the product is between 75 ° C and 105 ° C, which means a qualified product.
Bimetal temperature controller reset control chart:
2. Normally open thermostat set the temperature point is the "reset temperature"When the set temperature is reached,Thermostat connected to current,For example: buy 100 ℃ temperature opening,His reset temperature is 95 ℃ ~ 105 ℃ is qualified products,Off temperature at 55 ° C to 85 ° C.
Bimetal Thermometer Disconnect Control Chart:
Bimetal thermostat After years of development,Has become an important thermal protection of various electrical components,Customer requirements are becoming more stringent,Customer requirements of the product accuracy of ± 1 ℃, ± 2 ℃, ± 3 ℃ and so on,To the factory to bring a very stringent requirements,Product price will be much higher,High-precision thermostat requires high-precision bimetal,But also for product screening,100 products may only have 20 precision 1% qualified products.
Some customers more stringent products,Require reset temperature and disconnect the temperature between, 10 degrees apart,Such as: off temperature 20 ℃ ± 3 ℃,Reset temperature 30 ℃ ± 3 ℃, Yaxun electronic custom for different customers high-precision thermostat.
