Technical Data
ComparePoint Level / Liquids
| Measuring Principle | Conductive |
| Characteristic / Application | 2-channel level measurement device, level limit, switch delay, two-point control |
| Supply / Communication | 85V ... 253V AC 20V ... 30V AC 20V ... 60V DC |
| Ambient temperature | -20 °C ... 60 °C (-4 °F ... 140 °F) |
| Min. density of medium | min. 10 uS |
| Communication | 2 relays SPDT/DPDT |
| Certificates / Approvals | ATEX, FM, CSA, NEPSI, EAC |
| Safety approvals | Overfill protection WHG |
The Nivotester FTW325 level limit switch uses an intrinsically safe signal circuit and can be connected to conductive sensors. Its compact housing is convenient for installation on a standard DIN rail in an instrument cabinet.
Advantages
The limit switch is low-cost and suitable for conductive liquids
Linear sensor monitoring
Adjustable sensitivity range
ATEX, FM and CSA certification
With the intrinsically safe signal circuit EEx ia IIC, the sensor can be used in hazardous areas.
Measuring range up to 200 kΩ
The alarm relay can be converted into a changeover relay (SPDT)
Application
The limit switch can be used for liquid detection in tanks; ATEX II (1) GD EEx ia IIC is suitable for hazardous areas. Equipped with overfill protection, it is used for tank measurement of flammable or non-flammable water-polluting liquids. For pumps, it is equipped with dry-run protection. Used together with the Nivotester, it provides two-point control and point level detection.
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Technical documentation
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Source:Endress+Hauserwebsite public information
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Conductive Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · Conductive Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · Conductive Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · Conductive Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of Conductive.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Conductive for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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