The Nivotester FTC325 capacitive limit switch uses an intrinsically safe signal circuit. The one-piece housing is convenient for installation on a standard DIN rail in an instrument cabinet.
Advantages
Intrinsically safe signal circuit EEx ia IIC for use in hazardous areas
Calibration using the operating keys
High functional safety thanks to:
- Fail-safe pulse frequency modulation (PFM) or 3-wire technology
- Detectable relay function
One-piece housing, convenient for installation on a standard DIN rail in an instrument cabinet.
Pluggable terminals for easy wiring.
Can be used with EC16Z (PFM), EC17Z (PFM) and EC61 (3-wire).
Limit value and alarm relay
Application
This limit detection switch can be used for liquid tanks and bulk solids silos, and can also be used in hazardous areas of ATEX II (1) GD classification.
Overfill protection for tanks containing flammable or non-flammable liquids.
Dry-run protection for pumps.
2-point control (Δs 3-wire switch)
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Technical documentation
Technical data
Documents/Manuals/Software
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Source:Endress+Hauserwebsite public information
Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Capacitive Liquid |
| Characteristic / Application | Transmitter with intrinsically safe signal Calibrating using operating keys adjustable operating delay 2-wire PFM 3-wire Rail mounting: Wide: 45mm (PFM )Wide: 22,5 mm With adjustable hysteresis |
| Specialities | Min / Max - changeover Test/correction key (PFM) |
| Supply / Communication | 85V ... 253V AC 20V ... 60V DC |
| Ambient temperature | Serial montage -20 °C ... 50 °C (-4 °F ... 122 °F) |
| Communication | 2 Relays |
| Certificates / Approvals | ATEX, IEC Ex, FM, CSA, TIIS |
| Safety approvals | Overfill protection WHG |
Point Level / Solids
| Measuring Principle | Capacitive Solid |
| Characteristic / Application | Transmitter with intrinsically safe signal Calibrating using operating keys adjustable operating delay 2-wire PFM 3-wire Rail mounting: Wide: 45mm (PFM )Wide: 22,5 mm With adjustable hysteresis |
| Specialities | Min / Max - changeover Test/correction key (PFM) |
| Supply / Communication | 85V ... 253V AC 20V ... 60V DC |
| Ambient temperature | -20 °C ... 50 °C Serial montage (-4 °F ... 122 °F) |
| Communication | 2 Relays |
| Certificates / Approvals | ATEX, IEC Ex, FM, CSA, TIIS |
| Safety approvals | Overfill protection WHG |
Case Studies
市政污水处理污水处理厂 · 电容应用案例
项目背景
市政污水处理客户在污水处理厂环节，长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移，影响达标排放」的困扰，对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的电容，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应市政污水处理复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
食品饮料食品生产线 · 电容应用案例
项目背景
食品饮料客户在食品生产线环节，长期面临「卫生级测量要求高，在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰，对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的电容，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应食品饮料复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
化工制药反应釜与储罐 · 电容应用案例
项目背景
化工制药客户在反应釜与储罐环节，长期面临「介质腐蚀性强、工况复杂，仪表需耐腐蚀且防爆」的困扰，对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的电容，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应化工制药复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
电力能源电厂锅炉与汽机 · 电容应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节，长期面临「高温高压工况下测量不稳定，维护停机成本高」的困扰，对电容的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的电容，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应电力能源复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
