ABB RTD1 1MRS050644

The ABB RTD1 1MRS050644 is a signal analog input module designed for distributed control systems (DCS), specifically engineered to collect analog signals from resistance temperature detectors (RTDs) and similar sensors. Classified as a Certification Level 1 product, it is manufactured in China and fully compatible with ABB’s RTD1 series control platforms.

Key Technical Specifications

• Input Channels: 4 channels, configurable for 100 Ω platinum RTDs (3-wire connection) or other analog sensors.
• Resolution: 16-bit (including sign bit), with maximum error ≤ 0.1%.
• Input Range: Supports temperature measurement from 0 °C to +400 °C (for 100 Ω RTDs), with common-mode rejection ratio (CMRR) ≥ 90 dB (0–50 Hz).
• Anti-interference Performance: Equipped with surge protection, isolated inputs and high electromagnetic compatibility (EMC) immunity, compliant with ANSI C37.90 standards.
• Power Supply: 24 V DC, featuring low power consumption.
• Dimensions & Weight: 33 cm × 24 cm × 2.4 cm, weighing approximately 0.24 kg.
• Packaging: Single-unit packaging with a gross weight of 0.265 kg, ideal for on-site spare parts inventory management.

Product Features

1. High Precision: 16-bit A/D converter combined with 0.1% maximum error ensures accurate temperature measurement.
2. Superior Reliability: Built-in surge suppression and isolation circuits protect the module from damage caused by external transient interference.
3. Modular Design: Aligns with ABB RTD1 series modular architecture, enabling quick on-site replacement and system expansion.
4. Wide Compatibility: Supports multiple analog sensors (RTDs, thermocouples, 0–10 V voltage signals, 4–20 mA current signals) to meet diverse process requirements.
5. Compact & Lightweight: Small footprint and low weight facilitate easy installation in space-constrained control cabinets.

Structure & Components

• Front-end Input Unit: 4-channel analog input terminals integrated with isolation and surge protection functions.
• A/D Conversion Unit: 16-bit high-precision analog-to-digital converter for signal digitization.
• Digital Signal Processing (DSP) Module: Implements calibration, linearization and real-time diagnostic functions.
• Communication Interface: Enables data exchange with upper-level control systems via the ABB RTD1 bus.
• Indicator Lights: Status LEDs that display module operation, fault alerts and communication status.

Typical Application Fields

• Temperature monitoring and protection in power systems (substations, distribution networks).
• Process variable acquisition in process industries such as petrochemicals and metallurgy.
• Temperature control of boilers and steam turbines in power plants (thermal power, nuclear power).
• High-reliability temperature measurement scenarios including rail transit and aerospace.

Installation & Maintenance Guidelines

• Installation Location: Mount the module in a well-ventilated control cabinet free from strong magnetic fields or electromagnetic interference.
• Wiring Requirements: Adopt 3-wire connection for 100 Ω platinum RTDs and ensure all terminal connections are tight and secure.
• Surge Protection: Install surge protectors compliant with IEC 61850 standards at the module input terminals to enhance transient resistance.
• Regular Calibration: Perform calibration every 6 months using standard RTDs with known resistance values for comparison.
• Fault Diagnosis: The module is equipped with status LEDs. When anomalies occur, diagnostic codes can be retrieved via the upper-level system to quickly locate fault points.
• Replacement & Maintenance: Features plug-and-play design. For on-site replacement, simply power off the system, remove the old module and insert the new one, minimizing system downtime.

If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
• Whatsapp/Mobile:+86 15359273791

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