Original and Brand-New Emerson Rosemount 248 Mounting Temperature Transmitter

• Customization: Available
• Type: Wall-Mounted Current Type
• Measuring Medium: Temperature
• Model NO.: 248
• Display Type: LCD
• Site Display: Site Display
• Accuracy: 0.5
• IP Rating: IP67
• Certification: CE
• Customized: Customized
• Item Name: 248 Wireless Temperature Transmitter
• Model: 248
• Transmitter Type: Wireless Field Mount
• Transmitter Output: Wireless
• Display: LCD Display
• Weight: 3kg
• Material: Aluminum
• Input: Single Sensor Capability with Universal Sensor Inp
• Output Signal: Wirelesshart® Protocol
• Housing: Field Mount
• Diagnostics: Basic Diagnostics Including Open/Short Sensor Diag
• Calibration Options: Transmitter-Sensor Matching, 5-Point Calibration
• Update Rate: 1 Sec. to 60 Min., User Selectable
• Power Module Life: up to 10-Year Life, Field Replaceable
• Antenna Type: Internal
• Transport Package: Carton Boxes
• Specification: 35*30*25cm
• Trademark: Rosemount
• Origin: Singapore
• HS Code: 9026900000
• Production Capacity: 1000/Month
• Package Size: 30.00cm * 30.00cm * 30.00cm
• Package Gross Weight: 1.500kg

Product Description

Product Description

Emerson Rosemount 248 Temperature Transmitter Product Introduction Comprehensive Overview for Industrial Applications
1. Product Overview
The Rosemount™ 248 Temperature Transmitter, developed by Emerson Automation Solutions, is a versatile and robust device designed for precise temperature monitoring in industrial environments. As part of the Rosemount portfolio-a globally recognized leader in pressure, temperature, flow, and level measurement technologies-the 248 series exemplifies innovation, reliability, and cost-efficiency. This DIN rail-mount or head-mounted transmitter supports a wide range of sensors and integrates seamlessly into process control systems, making it ideal for applications in power generation, chemical processing, oil and gas, and manufacturing.
Key variants include the 248RANA, 248RANAQ4, and wireless models like 248HANAN0NS or 248HAI50NS, each tailored to specific installation and communication needs. The transmitter's modular design allows customization with sensors, housings, and thermowells, streamlining procurement and installation.

Detailed Photos

2. Core Features and Technological Advantages

2.1 Universal Sensor Compatibility
The Rosemount 248 accepts inputs from diverse temperature sensors, including:
RTDs (Resistance Temperature Detectors)
Thermocouples (Type J, K, T, etc.)
Millivolt (mV) signals
Ohmic/resistance inputs. This flexibility ensures compatibility with nearly all industrial temperature measurement requirements.
2.2 Enhanced Measurement Accuracy
Sensor-Transmitter Matching: The transmitter dynamically adjusts its internal temperature curve based on the sensor's specific characteristics, reducing interchangeability errors by up to 75%.
Ambient Temperature Compensation: Maintains accuracy across operating temperatures from -50°C to +85°C, even in harsh environments.
Diagnostic Capabilities: Features open/short sensor detection and configurable alarms to preemptively address loop issues 
2.3 Communication and Protocol Support
HART® Protocol: Enables bidirectional communication for configuration, calibration, and diagnostics using tools like the Rosemount 375 Field Communicator 
WirelessHART® Option: Select models (e.g., 248 Wireless) provide secure, self-organizing wireless connectivity, ideal for remote or hard-to-access locations 
4-20 mA Analog Output: Standard signal output ensures compatibility with legacy systems.
2.4 Durability and Installation Flexibility
Compact Design: Three housing options (DIN rail, field-mount, and rail-mount kits) accommodate space-constrained environments.
Robust Construction: Electronics are epoxy-encapsulated and housed in impact-resistant plastic, ensuring IP66/NEMA 4X protection against dust, moisture, and corrosion.
Simplified Assembly: Pre-configured assemblies (transmitter, sensor, thermowell) reduce installation time by 20% and lower project lifecycle costs.

Product Parameters

Parameter	Specification
Model	248RANA, 248RANAQ4 (common variants)
Input Types	RTD, thermocouple (T/C), mV, ohms (universal sensor support)
Communication Protocol	HART® 7 protocol (standard); WirelessHART® (optional for wireless models)
Mounting Options	DIN rail, head-mounted, or field-mounted (three housing options)
Enclosure Material	Aluminum, stainless steel (SST), or polypropylene (IP66/68 rated)
Power Supply	12-42 V DC (HART); 10.5-42 V DC (WirelessHART)
Output Signal	4-20 mA with HART digital signal; WirelessHART (for wireless models)
Accuracy	±0.1% of span (ambient temperature compensated)
Ambient Temperature Range	-40°C to 85°C (-40°F to 185°F)
Process Temperature Range	Depends on sensor type (RTD: -200°C to 850°C; T/C: -200°C to 1372°C)
Certifications	SIL 2 (IEC 61508), ATEX, IECEx, FM, CSA, EAC
Diagnostics	Open/short sensor detection, environmental compensation, four configurable alarms
Stability	±0.1% per year (guaranteed)
Calibration	On-site calibration via 375 Field Communicator; optional three-point certificate
Enclosure Options	DIN B head, universal junction box, sanitary connection heads (DIN A/B)
Environmental Protection	IP66/IP68 (depending on enclosure)
Assembly Options	Pre-assembled with sensor, thermowell, and accessories (model-specific)

3. Technical Specifications
Parameter    Details
Input Types RTD (Pt100, Pt1000), Thermocouples (J, K, T, etc.), mV, Ohms
Output    4-20 mA with HART® 7/WirelessHART® (select models) 
Accuracy    ±0.1% of span (RTD); ±0.5°C (thermocouples) after linearization
Isolation    2.5 kVAC galvanic isolation for signal integrity
Power Supply    12-42 VDC (standard); SmartPower™ modules for wireless models 
Environmental Rating    Operates at -50°C to +85°C; complies with NAMUR NE21 for EMC
Certifications    SIL 2 (IEC 61508), ATEX, IECEx, CSA, FM 
4. Applications
The Rosemount 248 is engineered for diverse industrial scenarios:
Process Control: Monitors reactor temperatures in chemical plants with high repeatability.
Energy Management: Optimizes boiler efficiency in power generation via precise steam temperature tracking.
Environmental Compliance: Ensures emissions control system reliability in refineries.
Food & Pharma: Maintains strict temperature ranges in sterilization processes.
Remote Monitoring: Wireless variants reduce cabling costs for pipeline or offshore platforms 
5. Competitive Advantages
5.1 Cost Efficiency
Reduced Wiring Costs: Eliminates the need for expensive extension cables and multiplexers, lowering installation expenses by 20%.
Pre-Assembled Kits: Ordering via a single model number (e.g., 248RANAQ4) ensures faster deployment.
5.2 Predictive Maintenance
Stability Guarantee: One-year stability rating minimizes recalibration needs 
Diagnostic Dashboard: Provides real-time insights into sensor health and process conditions 
5.3 Safety and Compliance
Explosion-Proof Design: Certified for hazardous areas (ATEX/IECEx).
Smart Wireless Security: Emerson's multi-layer encryption ensures data integrity in wireless networks 
6. Model Variants and Ordering
Popular configurations include:
248RANA: Standard HART® model with DIN rail mounting.
248 Wireless: WirelessHART® connectivity for remote sites 
248HANAN0NS: Explosion-proof housing for hazardous zones.
248HAK5U2NS: High-accuracy RTD input variant.
7. Support and Documentation
Emerson provides extensive resources:
Quick Install Guides: Step-by-step mounting and calibration instructions 
Reference Manuals: Detailed diagnostics and safety protocols (e.g., Document 00809-0100-4825) 
Product Data Sheets: Technical specifications and certifications.
8. Conclusion
The Rosemount 248 Temperature Transmitter combines precision, durability, and adaptability, making it a cornerstone of modern industrial automation. Its ability to integrate with both wired and wireless architectures, coupled with Emerson's global support network, ensures long-term reliability and ROI across industries. For detailed specifications or custom configurations, refer to Emerson's official documentation or authorized distributors.

Company Profile

KeRui (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales,technical services, and supporting equipment 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 protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
 

Packaging & Shipping

The 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.

FAQ

Q: 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.