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China, Chinese Original and Brand-New Emerson Rosemount 248 Rail-Mount Temperature Transmitter1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Kerui (Weifang) Automation Equipment Co., Ltd.
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Product Description Product DescriptionRosemount 248 Rail-Mounted Temperature Transmitter: Comprehensive Product Overview1. Product IntroductionThe Rosemount 248 Rail-Mounted Temperature Transmitter is a high-performance device designed for precise temperature monitoring in industrial applications. Developed by Emerson's Rosemount brand, this transmitter integrates advanced sensor compatibility, robust construction, and user-friendly configurability, making it a preferred choice for process automation and control systems. Its modular design allows seamless integration into DIN rail systems, ideal for control room installations and confined spaces.Key Specifications:Model Series: 248RANA, 248RANAQ4 (typical variants)Communication Protocol: HART? 7 (with RK option support) Input Compatibility: RTDs (Resistance Temperature Detectors), thermocouples, millivolt, and ohms Certifications: ATEX, IECEx, NEPSI, and other international safety standards Housing: IP66/67-rated engineering polymer for durability 2. Core Features & Technological Advantages2.1 Enhanced Measurement AccuracyThe transmitter employs sensor-specific curve linearization, reducing interchangeability errors by up to 75%. By calibrating to the actual sensor curve, it ensures high precision across varying temperature ranges. Advanced diagnostics, including open/short-circuit detection, further enhance reliability2.2 Flexible Configuration & CommunicationHART Protocol: Enables digital configuration via handheld communicators (e.g., Rosemount 375) or software tools, supporting remote calibration and real-time data access WirelessHART Option (WA3): Available in specific models for wireless process monitoring, compatible with 2.4 GHz DSSS networks LCD Display: Large, user-readable interface for local parameter adjustments and status monitoring 2.3 Robust Design & DurabilityEncapsulated Electronics: Epoxy-sealed components within a plastic housing provide resistance to moisture, vibration, and corrosive environments.Compact Form Factor: Three housing options for flexible field mounting, including DIN rail kits.Extended Temperature Range: Operates reliably in ambient temperatures from -40°C to 85°C 2.4 Integrated SolutionsThe 248 series supports "sensor-to-transmitter" assemblies, allowing pre-configured packages with thermowells, extension cables, and sensors. This reduces installation complexity and ensures compatibility3. Technical SpecificationsParameterDetailsInput TypesRTD (Pt100, Pt200, Pt500, Pt1000), thermocouples (J, K, T, E, etc.), mV/ΩOutput Signal4-20 mA HART, WirelessHART (2.4 GHz) Accuracy±0.1% of span (RTD), ±0.5°C (thermocouples)Power Supply12-42 V DCLoop Resistance250-1,100 Ω (for HART communication) Environmental RatingIP66/67, NEMA 4X 3.1 Electrical & Performance Parameters3.2 Certifications & ComplianceSafety: ATEX, IECEx, INMETRO, TIIS EMC: IEC 61326-1, IEC 61326-2-3 RoHS: Compliant4. Application ScenariosThe Rosemount 248 excels in diverse industrial sectors:Process Industries: Chemical reactors, HVAC systems, and pipelines requiring stable temperature control.Energy & Utilities: Monitoring steam turbines, boilers, and heat exchangers.Pharmaceuticals: Compliance with stringent hygiene and accuracy standards.Food & Beverage: Sanitary installations with CIP (Clean-in-Place) compatibility.5. Installation & Configuration5.1 Mounting GuidelinesDIN Rail Installation: Secure the transmitter using rail clips; ensure proper grounding Wiring: Use shielded cables for noise reduction. Terminal blocks support 2.5-14 NPT conduit entries 5.2 HART ConfigurationConnect a HART communicator (e.g., Rosemount 375) to the 4-20 mA loop.Navigate menus to set sensor type, range, damping, and alarm thresholds Perform loop tests to verify output signals and diagnose faults 5.3 Wireless Setup (Optional)Pair the transmitter with a WirelessHART gateway for network integration.Configure update rates (1-60 seconds) via Emerson's AMS Suite 6. Advantages Over Competing ModelsInterchangeability: Reduces recalibration needs when replacing sensors.Diagnostics: Four user-configurable alarms for proactive maintenance Global Support: Manufactured in multiple locations (e.g., Beijing, USA) for shorter lead times (1-week delivery).7. Ordering InformationCodeDescription248RANABase model with HART 7 and DIN rail kitWA3WirelessHART moduleM5LCD display optionFor full customization, specify sensor type, housing material, and certifications during ordering8. Maintenance & SupportCalibration: On-site verification using HART tools or return-to-factory services.Warranty: Standard 1-year coverage, extendable to 3-5 years.Software: Emerson's Rosemount Device Manager for firmware updates and batch configuration 9. ConclusionThe Rosemount 248 Rail-Mounted Temperature Transmitter combines precision, durability, and adaptability, addressing the needs of modern industrial automation. Its modular architecture, compliance with global standards, and integration with Industry 4.0 protocols position it as a future-proof solution for temperature monitoring.Company ProfileKeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supportingequipment supply of specialized companies.The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems,and eight series of more than 1,000 specifications.Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental textile, dyeing, and other fields.protection, plastics, food, printing, tobacco,textile, dyeing, and other fields.CertificationsPackaging & ShippingThe packaging and transportation of instrumentation in global trade hinges on a synergy of advanced materials, rigorous testing, regulatory compliance, and smart logistics. By adopting hybrid structural designs, leveraging real-time monitoring technologies, and prioritizing sustainability, exporters can ensure the safe, efficient, and cost-effective delivery of precision instruments. Continuous innovation in materials science and IoT integration will further redefine industry standards, enhancing resilience in an increasingly interconnected market.On-site photosFAQQ: How long will you give me the reply?A: We will reply to you as soon as we see the information.Q: What is the delivery time?A: Our delivery time is within 3-7 days after we get your payment;for large qty mass orders, the time should be confirmed again for you.Q: How about your package?A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package.Q: How about the payment terms?A: You can choose T/T.Q: Do you provide samples?A: Yes, we have materials in stock to help you to get the samples as soon as we can.Q: What is the MOQ?A:1PC.Q: Can I get a lower price if I order large quantities?A: Yes, cheaper prices with more bigger size orders.
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