产品详情
简单介绍：
航空插件式热电偶可直接测量0-400度范围内的温度，适用于各类塑料挤出机轻工纺织和食品等工业，本类产品具有外型尺寸较小热响应快，结构简单，使用方便等特点。
详情介绍：
航空插件式热电偶
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主要技术指标Major technical indexes
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铠装热电偶种类、温度范围及允差 Temperature measuring range and accurancy
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类别Category
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代号
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分度号
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套管外径（mm）
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测量范围 ℃
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*高使用温度（℃）
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允许偏差△tTolerance
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1
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2
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镍铬－铜镍 Nickel-chromium--cupronickel
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WREK
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E
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≥φ3
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-40～700
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700
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±1.5℃或±0.4％t±1.5℃ or±0.4％t
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±2.5℃或±0.75％t±2.5℃ or ±0.75％t
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WRNK
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K
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-40～900
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950
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WRJK
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J
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-40～500
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600
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WRCK
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T
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-40～350
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400
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铂铑-铂 Rhodium Platinum-Platinum
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WRPK
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S
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φ5～φ8
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0～1100
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1300
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±1.5℃ or±0.25％t
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常温绝缘电阻Insulation resistance at normal temperature
绝缘型铠装热电偶在环境温度为20±15℃，相对湿度不大于80％时，热电极与外套管之间的绝缘电阻应符合下表的规定：
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Of the insulated sheathed thermocouple, the insulation resistance between thermode and outer tube shall, under the ambient termperature of 20±15℃ and relative humidity not more than 80％, comply with the stipulation as below:
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铠装热电偶直径d(mm) Diameter of sheathed thermocouple
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试验电压（V·DC） Ecperimental voltage
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绝缘电阻（MΩ·m） Insulation resistance
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0.5～1.5
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50±5
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≥1000
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＞1.5
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500±50
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≥1000
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注：绝缘电阻用（MΩ·m）表示。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。Note: The insulation resistance shall be denoted as（ MΩ·m） , namly, the insulation resisance of 1m-long specimen is 1000（ MΩ·m） and that of the 10m-long is 100MΩ.
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铠装热电偶可绕半径Windable radius of sheathed thermocouple
铠装热电偶的可绕半径不应小于其直径的5倍，并没有明显的损伤。
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The windable radius of sheathed thermocouple shall not less than 5 times of its
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