测量电导率有两种基本传感器类型：接触式和电感式(环形、无电极)。
使用接触式传感器时，通过向溶液中浸入的传感器电极(共同影响参比池常数)施加交流电并测量产生的电压来测量导电性。溶液用作传感器电极之间的导电体。
对于电感式电导率(也称为环形或无电极)，电感式传感器的传感元件(电极线圈)不会与过程液体直接接触。这两个匹配(相同)的线圈封装在PEEK (或特氟龙)中，保护其免受过程液的不利影响。
ISC40感应传感器只有一个参比池因数(常数)，它涵盖了几乎整个电导率测量范围(50-2,000,000 µS/cm)。传感器的精度只在低端(低于50 µS)受影响。
因为ISC40电感式传感器几乎不需要维护；它是许多应用的首选。如果不能使用ISC40，建议使用4电极的SC42大口径型传感器。
详细介绍
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| 型号代码 | ISC40 | SC42大口径型 | ||
|---|---|---|---|---|
| 参比池常数 | NA | NA | 10.0/cm | |
| 量程范围 | 1-20,000,000 µS/cm | 1-20,000,000 µS/cm | 20.0-20,000,000 µS/cm | |
| 温度元件 | Pt1000或30K热敏电阻 | Pt1000或30K热敏电阻 | Pt1000 | |
| 额定压力 | 最高20 bar/290 PSIG *取决于安装方式* | 10 bar/142 PSIG @ 20°C/36°F; 5 bar/71 PSIG @ 100°C/212°F | 10 bar/142 PSIG | 2 bar/28.5 PSIG |
| 最高温度 | -20°C/-4°F to 130°C/266°F | -20°C/-4°F to 100°C/212°F | 110°C/230°F | |
| 安装接口 | 法兰型；Tri-Clamp；直通式，NPT，可伸缩 | 法兰型；Tri-Clamp；直通式，NPT，可伸缩 | 需要FD40、FS40或FF40支架 | |
| 整体电缆 | 有 | 有 | 无 | |
| 结构材质 | PEEK | PFA (特氟龙) | EPOXY; PVDF (聚偏氟乙烯) | PTFE (特氟龙) |
| 设计类型 | 电感式(环形或无电极) | 电感式(环形或无电极) | 4电极 | |
参考
概述:
In the past, the boiler feed tank systems in sugar factories had to be checked several times a day to make sure there were no sugar solution leaks. This was a very laborious process and, as continuous monitoring was not possible, monitoring results were not reliable. When a leak occurred, recovery operations were very costly and time-consuming. (AN10D01K01-02E)
行业:
下载
技术信息
认证信息
- EU_UK Declaration of Conformity ISC40G_ISC40S 2022-10-03 (202 KB)
- FLXA21 with ISC40S RINA type approval ELE482021CS/001 (621 KB)
- EU_UK Declaration of conformity SC42 2022-10-03 (158 KB)
- ATEX ISC40 11ATEX0063X-Issue 1
- IECEx for ISC40 DEK 11.0028X-Issue 0
- CAN/CSA certificate of confirmity FM22CA0012X (309 KB)
- IECEx for ISC40 DEK 11.0028X-Issue 1 (486 KB)
- FM certificate of conformity FM21US0083X (328 KB)
- ATEX ISC40 11ATEX0063X Issue 2 (2.3 MB)
- EAC certificate for sensors (1.8 MB)
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