常用热电偶测温范围及允差
热偶品种 | 分度号 | I级 | II级 | ||
测温范围 | 允差℃ | 测温范围 | 允差℃ | ||
镍铬-镍硅 | K | -40~375℃ | ±1.5℃ | -40~333℃ | ±2.5℃ |
375~1000℃ | ±0.4%t | 333~1200℃ | ±0.75%t | ||
镍铬-康铜 | E | -40~375℃ | ±1.5℃ | -40~333℃ | ±2.5℃ |
375~800℃ | ±0.4%t | 333~900℃ | ±0.75%t | ||
镍铬硅-镍硅镁 | N | -40~375℃ | ±1.5℃ | -40~333℃ | ±2.5℃ |
375~1000℃ | ±0.4%t | 333~1200℃ | ±0.75%t | ||
铜-康铜 | T | -40~125℃ | ±0.5℃ | -40~133℃ | ±1℃ |
125~250℃ | ±0.4%t | 133~350℃ | ±0.75%t | ||
铁-康铜 | J | -40~375℃ | ±1.5℃ | -40~333℃ | ±2.5℃ |
375~750℃ | ±0.4%t | 333~750℃ | ±0.75%t |