电源和错误信接口息模块
Technical Data
ComparePower supplies & barrier
| Measuring Principle | Active barrier |
| Measuring principle | Power and error message module |
| Function | Power and error message module |
| Power Supply | 24 V DC |
| Input | 24 V DC |
| Output | Uin - 0,8 V |
| Certificates | ATEX IECEx Ex ec nC UK Ex ec nC DNV |
| Operation | DIP switch |
The RNF22 power and error message interface module provides 24 VDC redundant power for DIN rail-mounted bus connector systems and can be used safely in hazardous areas. Intelligent error diagnostics and power failure alarm via relay contacts and flashing LEDs; NAMUR grouped error messages or fuse faults are indicated via relay contacts and flashing LED indicators. The compact interface module provides overvoltage protection and reverse polarity protection through diode decoupling.
Advantages
Safe and reliable single or redundant 24 VDC power supply
Built-in intelligent diagnostics: monitors power failure or fuse failure
Simple and fast wiring via plug-in terminals
Compact housing: width 17.5 mm (0.69 in), making full use of the space inside the control cabinet
Field of application
Power and error message interface module, works safely and reliably in hazardous areas
Single or redundant 24 VDC power supply with a maximum permissible supply current of 3.75 A
Relay error message output
Connection for grouped error messages of NAMUR signal isolating amplifiers (RLN22)
Switching of the grouped error detection function via DIP switches
Ambient temperature range: –20...60 °C (–4...140 °F)
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Technical documentation
Technical data
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Source:Endress+Hauserpublic information from the website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · Power Supplies and Safety Barriers 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 Power Supplies and Safety Barriers.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Power Supplies and Safety Barriers 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 · Power Supplies and Safety Barriers 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 Power Supplies and Safety Barriers.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Power Supplies and Safety Barriers 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 · Power Supplies and Safety Barriers 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 Power Supplies and Safety Barriers.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Power Supplies and Safety Barriers 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 · Power Supplies and Safety Barriers 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 Power Supplies and Safety Barriers.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable Power Supplies and Safety Barriers 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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