信号输出隔离放大器
Technical Data
ComparePower supplies & barrier
| Measuring Principle | Active barrier |
| Measuring principle | Output isolating amplifier |
| Function | 1-channel 2-channel |
| Power Supply | 24 V DC |
| Input | 0/4…20 mA / HART passive |
| Output | 0/4…20 mA / HART active |
| Certificates | ATEX IECEx [Ex ia Ga], [Ex ia Da], Ex ec UK [Ex ia Ga], [Ex ia Da], Ex ec DNV |
| SIL | SIL 2 SC 3 |
| Operation | DIP switch, HART |
The RNO22 signal output isolating amplifier safely controls active components such as pneumatic converters, control valves or process displays. The intrinsically safe device transmits isolated 0/4...20 mA analog signals, supports bidirectional transparent HART® transmission mode and communicates digitally with intelligent actuators.
The interface module is compact and provides up to two galvanically isolated channels with line open-circuit and short-circuit monitoring, ensuring reliable operation of critical equipment.
Advantages
Safe and reliable control of active components in hazardous areas
Fast and convenient device wiring and commissioning: plug-in terminals and power supply installed via the DIN rail bus connector
Small, compact housing: optional dual-channel version with a width of only 12.5 mm (0.49 in), making efficient use of the space inside the control cabinet
Precise and reliable signal transmission
Monitors line open circuits and short circuits
Field of application
Single-channel or dual-channel signal output isolating amplifier
Reliable control of active components such as control valves and pneumatic converters
Isolated transmission of 0/4 ... 20 mA signals
Intrinsically safe certification [Ex ia], can be installed for use in Zone 2 explosion-protected areas
Can be used in safety instrumented systems up to functional safety level SIL 2 (SC 3) in accordance with IEC 61508
Bidirectional digital HART® communication
Ambient temperature range: –40...70 °C (–40...158 °F)
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Technical documentation
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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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