WREK-181铠装热电偶的测量范围及允差
作者：saicsh 添加时间：2017-06-28 16:53:32
铠装热电偶测量范围及允差
| 型号 | 分度号 | 允差等级 | |||
| I | II | ||||
| 允差值 | 测温范围°C | 允差值 | 测温范围°C | ||
| WRNK | K | ±1.5°C | -40~+375 | ±2.5°C | -40~+333 |
| ±0.004ltl | 375~1000 | ±0.0075ltl | 333~1200 | ||
| WRMK | N | ±1.5°C | -40~+375 | ±2.5°C | -40~+333 |
| ±0.004ltl | 375~1000 | ±0.0075ltl | 333~1200 | ||
| WREK | E | ±1.5°C | -40~+375 | ±1.5°C | -40~+333 |
| ±0.004ltl | 375~800 | ±0.004ltl | 333~900 | ||
| WRFK | J | ±1.5°C | -40~+375 | ±1.5°C | -40~+333 |
| ±0.004ltl | 375~750 | ±0.004ltl | 333~750 | ||
| WRCK | T | ±1.5°C | -40~+125 | ±1°C | -40~+133 |
| ±0.004ltl | 125~350 | ±0.0075ltl | 133~1000 | ||
| WRPK | S | ±1°C | 0~+1100 | ±2.5°C | 0~600 |
| ±[0.003(t-1100)] | 1100~1600 | ±0.0025ltl | 600~1600 | ||
常温绝缘电阻
铠装热电偶在环境温度为20±15°C，相对湿度不大于80%试验电压为500±50V（直流）电极与外套管之间的绝缘电阻>1000MΩ。即1m长的试样的绝缘电阻为1000MΩ；10m长的试样的绝缘电阻为100MΩ；
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