The New Power NPEXA-C87 is an intrinsically safe galvanic barrier specifically designed for vibration monitoring applications. It serves as a critical component in hazardous industrial environments, ensuring the safe transmission of signals from sensors to control systems. The NPEXA-C87 acts as an isolated safety barrier, providing galvanic isolation to protect equipment and personnel by limiting energy transfer between intrinsically safe and non-intrinsically safe circuits. This barrier is essential for maintaining operational integrity and preventing ignition risks in environments where flammable gases, vapors, or dust may be present. Its role is crucial in facilitating reliable vibration monitoring without compromising safety standards, thereby addressing the critical need for continuous equipment health assessment in potentially explosive atmospheres.
Product Type & Category Positioning
The New Power NPEXA-C87 is classified as an intrinsically safe isolation barrier. This specialized type of safety barrier is engineered to provide galvanic isolation, ensuring that potentially hazardous energy levels from non-intrinsically safe circuits cannot reach intrinsically safe circuits in hazardous locations. Unlike simpler Zener barriers, isolated barriers like the NPEXA-C87 employ advanced internal circuitry, often utilizing transformers, relays, and capacitors, to achieve a complete separation of electrical potential between input, output, and power supply circuits. This robust isolation is vital for the reliable and safe transmission of analog signals, particularly from sensors such as those used in vibration monitoring, from hazardous areas to safe control areas. The NPEXA-C87 is positioned as a high-integrity solution for applications demanding stringent safety compliance and stable signal transmission, effectively bridging the gap between potentially explosive environments and critical monitoring systems. Building on this classification, the subsequent sections will detail its technical specifications and performance highlights.
Technical Specifications
Power supply: 18 ~ 60 V DC
Input signal: -20 V ~ 0V
Line resistance: Not specified
Output signal: -20 V ~ 0V
Load resistance: Not specified
DC accuracy: < ±20 mV
AC accuracy (0 Hz ~ 1 kHz): ±1 %
AC accuracy (1 kHz ~ 20 kHz): -2 % ~ +1 %
Temperature drift: Not specified
Phase response (< 10 μs at 200 Hz)
Operating temperature: -20 ℃ ~ +60 ℃
EMC: IEC 61326-3-1
Connection method: Screw connection
Product approvals: CNEX, CE, FCC, CCC
Isolation voltage (Input/Output/Power supply to non-intrinsically safe side): ≥ 3000V AC
Isolation resistance (Input/Output/Power supply): ≥ 100MΩ
Mechanical dimensions: 12.8mm (W) × 110mm (H) × 117mm (D)
Technical Highlights
The NPEXA-C87 distinguishes itself through its comprehensive galvanic isolation, ensuring that the input, output, and power supply circuits are entirely separate. This design is critical for preventing ground loops and for maintaining signal integrity in noisy industrial environments. Furthermore, it offers robust protection with a high dielectric strength of at least 3000V AC between intrinsically safe and non-intrinsically safe sides, and 1500V AC from the power supply to the non-intrinsically safe side. The barrier is also designed for reliable operation across a wide temperature range, from -20°C to +60°C. Additionally, its compliance with EMC standards such as IEC 61326-3-1 underscores its suitability for demanding electromagnetic environments.
Application Scenarios Hazardous Area Vibration Monitoring: The NPEXA-C87 is ideally suited for integrating vibration sensors in Zone 0, 1, or 2 hazardous areas with process instruments that require intrinsically safe operation. It ensures that signals from vibration transducers, such as eddy-current transducers, are safely transmitted to control systems in safe areas, preventing potential ignition sources and maintaining continuous equipment health monitoring. Petrochemical and Oil & Gas Operations: In environments where flammable materials are present, the barrier's intrinsic safety features are paramount. It allows for the deployment of vibration monitoring systems on critical machinery like pumps, compressors, and turbines, enabling early detection of faults and preventing catastrophic failures without compromising safety regulations. Pharmaceutical and Chemical Manufacturing: These industries often involve explosive atmospheres due to the nature of the materials handled. The NPEXA-C87 facilitates the installation of vibration monitoring equipment on processing machinery, ensuring that operational parameters are continuously assessed while adhering to strict safety protocols and preventing ignition risks. Power Generation Facilities: For vibration monitoring of turbines, generators, and other rotating equipment in potentially hazardous sections of power plants, the NPEXA-C87 provides a safe and reliable signal transmission pathway, contributing to predictive maintenance strategies and operational uptime.
Selection Recommendations Suitable: For applications requiring the safe transmission of vibration signals from hazardous areas to safe control rooms, especially in environments with strict intrinsic safety requirements such as petrochemical plants, refineries, or pharmaceutical facilities. The NPEXA-C87's galvanic isolation and compliance with standards like IEC 61326-3-1 make it a reliable choice for maintaining signal integrity and preventing ground loops in high-interference environments. Its ability to handle signals from eddy-current transducers further enhances its suitability for specialized vibration monitoring tasks. Not Suitable: For applications where the input signal is outside the specified range of -20 V ~ 0V, or where extremely high-frequency signals exceeding the AC accuracy specifications (e.g., > 20 kHz) are critical and require precise measurement. While the NPEXA-C87 is robust, it may not be the optimal choice for scenarios demanding signal conditioning beyond simple isolation and transmission, or where complex multi-channel signal processing is required without additional modules. For applications with different signal types or more complex processing needs, exploring variants like the NPEXA-C311P, which is designed for 4-20 mA signals, would be more appropriate.
FAQ
1. What is the typical lead time for the New Power NPEXA-C87?
The standard lead time for the NPEXA-C87 is typically between 4 to 6 weeks from order confirmation. For urgent requirements, expedited shipping options may be available at an additional cost. Our logistics department works diligently to process all orders efficiently. We aim to dispatch units as soon as they are manufactured and pass quality control. Please contact us for the most current lead time estimates based on current production schedules.
2. Do you have the NPEXA-C87 in stock?
While we strive to maintain a stock of popular items, availability can fluctuate based on demand. It is advisable to check current stock levels with our sales team. If units are not readily available, we can provide an estimated production schedule. We typically require a short lead time for manufacturing and quality assurance. Orders are processed on a first-come, first-served basis.
3. What are the payment terms for purchasing the NPEXA-C87?
Our standard payment terms for new customers typically involve an upfront deposit of 30% upon order placement, with the remaining 70% due prior to shipment. For established clients with a positive credit history, we may offer net 30 payment terms. We accept payment via bank transfer and major credit cards. Our finance department can discuss alternative arrangements if needed.
4. Can the NPEXA-C87 be used in explosive atmospheres, and what certifications does it hold?
Yes, the NPEXA-C87 is specifically designed for use in hazardous and potentially explosive atmospheres, functioning as an intrinsically safe galvanic barrier. It holds key certifications including CNEX, CE, FCC, and CCC, which attest to its safety and compliance for operation in classified areas. These certifications are crucial for ensuring that the device does not pose an ignition risk. Proper installation according to its certification guidelines is essential for maintaining its safety integrity.
5. What is the warranty period for the NPEXA-C87?
The NPEXA-C87 comes with a standard 12-month warranty covering manufacturing defects. This warranty period begins from the date of delivery. If any issues arise due to faulty workmanship or materials during this period, we will provide repair or replacement services. Our technical support team is available to assist with any warranty claims. Please retain your proof of purchase for warranty validation.
6. How is the NPEXA-C87 installed, and does it require special grounding?
The NPEXA-C87 is designed for straightforward installation, typically utilizing screw connections for mounting on a DIN rail. As an isolated safety barrier, it provides galvanic isolation and generally does not require a dedicated ground connection for intrinsic safety, unlike Zener barriers. This simplifies installation and reduces maintenance needs by eliminating potential ground loops. Refer to the product datasheet for detailed wiring and mounting instructions.
7. What is the typical power supply requirement for the NPEXA-C87?
The NPEXA-C87 operates on a DC power supply ranging from 18 V to 60 V DC. It requires an independent power supply, and the input, output, and power supply are galvanically isolated from each other. Ensuring the power supply is within this specified range is critical for optimal performance and safety. Using an approved power supply unit is recommended to maintain compliance with safety standards.
8. Can the NPEXA-C87 transmit HART signals?
The NPEXA-C87 is designed to transmit analog signals, particularly from vibration sensors. While some advanced isolated barriers can pass HART communication signals, the NPEXA-C87's primary function is signal isolation and safe transmission. Specific compatibility for HART signals should be confirmed by consulting the detailed product datasheet or by contacting our technical support. For HART compatibility, other models in our series may be more suitable.
9. What is the maximum ambient operating temperature for the NPEXA-C87?
The NPEXA-C87 is rated for operation within an ambient temperature range of -20°C to +60°C. This wide operating temperature range ensures reliable performance in various industrial environments, including those with significant temperature fluctuations. Exceeding this temperature range may affect the device's performance and longevity. Ensure proper ventilation if installed in enclosed spaces.
10. How do I obtain pricing and a formal quotation for the NPEXA-C87?
Pricing for the NPEXA-C87 can vary based on order volume and current market conditions. For an accurate and up-to-date quotation, please contact our sales department directly. We can provide detailed pricing information and discuss any applicable volume discounts. Our team is ready to assist you with your specific requirements.
FAQ
1.Who are We?
Beijing Zhongping Technology Co., LTD., is a global industrial electrical automation service provider, is a scientific research, design, marketing, technical services, industrial Internet, international import and export services as one of the science and technology companies.
2.What can you buy from us?
PLC, inverter, human-machine interface, hydraulic products, low-voltage power distribution, industrial robots and core components
3.Is the item in stock or need to be purchased from another supplier?
We have a large inventory of goods and have our own warehouse.
4.What advantages do we have over other suppliers?
Our company has a large amount of inventory and a number of warehouses, but also in the country's important industrial provinces and cities with offices and a number of overseas service points. To provide you with intelligent manufacturing one-stop comprehensive services, save efforts, labor and cost.
5.Can you provide 100% new original authentic products?
We only sell new original genuine, no renovation, no fake, only for the original factory original!
6.How long is the delivery time?
If there is a stock, it will take 2-3 working days to ship, if the quantity is large, it will take 5-7 working days after receiving the payment, if it is not a conventional model, it will take some time, we will inform you of the specific delivery time.
7.Is there technical support available?
Of course, we have a professional technical team that can help you solve technical problems.
8.How do we guarantee quality?
We have three processes to control the quality of goods.
1) Our engineers will inspect the production and quality control in the factory regularly.
2) Incoming materials shall be inspected by experienced purchasing engineers before they can be stored.
3) At least 2 people in the logistics department cross-check the goods to be sent before delivery.
9.Can you guarantee the safe and reliable delivery of your products?
Yes, we strictly adopt the international standard packing. We also use special packaging for dangerous goods, and refrigerated shipping for items with temperature requirements. Special item packaging and general cargo standard packaging requirements may incur additional costs.
10.How about the freight?
The cost depends on how you choose to get the goods. Express is usually the fastest but also the most expensive way. Sea freight is the best solution for large quantities of goods. The exact shipping cost depends on the purchase amount、quantity and weight of your order. Please feel free to contact us for more information.
+86 010-64225983
+8613811814778
Building 26, Liyuan Community, Chaoyang District, Beijing, China
