Active Barrier 24-230V AC/DC RN42
Technical Data
ComparePower supplies & barrier
| Measuring Principle | Active barrier |
| Measuring principle | Active barrier |
| Function | 1-channel |
| Loop power supply | 17,5 V ±1 V bei 20 mA open circuit voltage: 24,5 V ±5 % |
| Power Supply | 24...230 V AC/DC |
| Input | 0/4…20 mA / HART feeding/not feeding |
| Output | 0/4…20 mA / HART active/passive |
| Certificates | ATEX Ex tc CSA C/US AIS JPN [Ex ia Ga], [Ex ia Da], Ex ec KC [Ex ia Ga], [Ex ia Da], Ex ec INMETRO [Ex ia Ga], [Ex ia Da], Ex ec NEPSI [Ex ia Ga], [Ex ia Da], Ex ec UK Ex tc, [Ex ia Ga], [Ex ia Da], Ex ec ATEX IECEx [Ex ia Ga], [Ex ia Da], Ex ec UL C/US DNV EAC [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex ec IIC Gc |
| SIL | SIL 2 SC 3 |
| Operation | HART |
The active barrier is used for transmitting and isolating 4...20 mA/HART signals. The device has an active or passive current input and can be connected directly to two-wire or four-wire transmitters. The device provides an active or passive output signal. The current signal is available to a PLC or controller, or to downstream devices via pluggable screw terminals or optional push-in terminals.
Advantages
Wide voltage range, 19.2...253 V AC/DC
Push-in terminals for fast and simple wiring
Can be used in SIL 2 (SC3) safety systems complying with IEC 61508
Optional installation for use in Zone 2 explosion-protected areas
Compact housing with a width of only 17.5 mm (0.69 in), making efficient use of space
Optional 180° rotated installation (power terminals facing up or down)
Field of application
Single-channel active barrier with wide voltage range
Transmits and galvanically isolates 0/4...20 mA analog signals
Can connect intrinsically safe [Ex ia] signals from hazardous area outputs
Bidirectional HART® signal transmission
Optional power supply for two-wire or four-wire devices
Active or passive signal output
Ambient temperature range: -40…60°C (-40…140°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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