航空插件式熱電偶
| 主要技術(shù)指標(biāo)Major technical indexes | |||||||||
| 鎧裝熱電偶種類(lèi)、溫度范圍及允差 Temperature measuring range and accurancy | |||||||||
| 類(lèi)別Category | 代號(hào) | 分度號(hào) | 套管外徑（mm） | 測(cè)量范圍 ℃ | *高使用溫度（℃） | 允許偏差△tTolerance | |||
| 1 | 2 | ||||||||
| 鎳鉻－銅鎳 Nickel-chromium--cupronickel | WREK | E | ≥φ3 | -40～700 | 700 | ±1.5℃或±0.4％t±1.5℃ or±0.4％t | ±2.5℃或±0.75％t±2.5℃ or ±0.75％t | ||
| WRNK | K | | -40～900 | 950 | | ||||
| WRJK | J | | -40～500 | 600 | | ||||
| WRCK | T | | -40～350 | 400 | | ||||
| 鉑銠-鉑 Rhodium Platinum-Platinum | WRPK | S | φ5～φ8 | 0～1100 | 1300 | ±1.5℃ or±0.25％t | | ||
| 常溫絕緣電阻Insulation resistance at normal temperature 絕緣型鎧裝熱電偶在環(huán)境溫度為20±15℃，相對(duì)濕度不大于80％時(shí)，熱電極與外套管之間的絕緣電阻應(yīng)符合下表的規(guī)定： | |||||||||
| 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: | |||||||||
| 鎧裝熱電偶直徑d(mm) Diameter of sheathed thermocouple | 試驗(yàn)電壓（V·DC） Ecperimental voltage | 絕緣電阻（MΩ·m） Insulation resistance | |||||||
| 0.5～1.5 | 50±5 | ≥1000 | |||||||
| ＞1.5 | 500±50 | ≥1000 | |||||||
| 注：絕緣電阻用（MΩ·m）表示。即1m長(zhǎng)的試樣的絕緣電阻為1000MΩ；10m長(zhǎng)的試樣的絕緣電阻為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. | |||||||||
| 鎧裝熱電偶可繞半徑Windable radius of sheathed thermocouple 鎧裝熱電偶的可繞半徑不應(yīng)小于其直徑的5倍，并沒(méi)有明顯的損傷。 | |||||||||
| The windable radius of sheathed thermocouple shall not less than 5 times of its | |||||||||
