FOXBORO RH924WA Product Introduction
1. Product Overview
The FOXBORO RH924WA is a high-performance industrial temperature transmitter in Foxboro’s RH900 Series, engineered for precision temperature measurement in demanding process automation. It serves oil & gas, petrochemical, pharmaceutical, and power industries, focusing on critical applications like reactor temperature control, turbine exhaust monitoring, and high-pressure pipeline thermal sensing.
Integrating advanced RTD/TC input compatibility and multi-protocol communication, it delivers stable, reliable data even in extreme industrial conditions (e.g., high vibration, corrosive environments). Its compliance with strict safety and accuracy standards ensures seamless integration with DCS/PLC systems, making it a top choice for mission-critical temperature monitoring.
2. Technical Parameters (Table)
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Category
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Specification
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Device Type
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Multi-input industrial temperature transmitter (RTD/TC compatible)
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Input Compatibility
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RTD: Pt100/Pt1000 (2/3/4-wire); TC: J/K/T/E/R/S/B; Temp range: -270°C to +1800°C (-454°F to +3272°F)
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Measurement Accuracy
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±0.05% of full scale (FS) at 25°C (77°F); ±0.1% FS over -270°C to +1800°C range
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Output Signals
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Analog: 4–20 mA DC (2-wire); Digital: HART 7.0, Foundation Fieldbus (FF)
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Power Supply
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10–42 V DC (2-wire loop power); Power consumption: ≤22 mA (max at 24 V DC)
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Environmental Ratings
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Operating temp: -40°C to +90°C (-40°F to +194°F); Humidity: 0%–100% (condensing); Vibration resistance: 15 g (10–2000 Hz, IEC 60068-2-6); Protection class: IP67 (housing), NEMA 4X
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Process Connection
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Standard: 1/2 NPT male (stainless steel 316L); Optional: M20×1.5, G 1/2
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Electrical Connection
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Terminal block (IP67); Optional: M12 connector (IP68)
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Response Time
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≤0.5 seconds (90% step response for Pt100 input); ≤1 second (TC input)
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Certifications
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CE; UL 61010-1; ATEX Zone 1/2 (Ex d IIC T6 Ga); IECEx; SIL 3 (IEC 61508)
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3. Product Specifications & Features
3.1 Core Specifications
The FOXBORO RH924WA supports both RTD (Pt100/Pt1000) and TC (J/K/T/E/R/S/B) inputs, covering an ultra-wide temperature range (-270°C to +1800°C) to fit cryogenic processes (e.g., LNG storage) and ultra-high-temperature applications (e.g., turbine exhaust). Its ±0.05% FS accuracy at ambient temperature ensures top-tier precision, while ±0.1% FS accuracy over the full range eliminates drift—critical for long-term, high-stakes monitoring.
Dual digital protocols (HART 7.0, FF) enable flexible integration with modern smart control systems, while the 4–20 mA analog output ensures compatibility with legacy setups. The stainless steel 316L process connection resists aggressive media (e.g., acids, hydrocarbons), and IP67/NEMA 4X housing withstands water submersion (up to 1m) and dust—suitable for offshore platforms and harsh factory environments.
3.2 Key Features
- Multi-Input Flexibility: RTD/TC compatibility eliminates the need for separate transmitters, simplifying inventory and installation.
- Ultra-High Precision: ±0.05% FS accuracy meets the strictest process requirements (e.g., pharmaceutical batch production).
- Extreme Environment Resilience: IP67 housing and -40°C to +90°C operating range handle condensing humidity and high temperatures, reducing downtime.
- Advanced Diagnostics: HART/FF enable real-time checks (e.g., sensor degradation, wiring faults) for proactive maintenance.
- Safety Compliance: SIL 3 certification suits high-risk applications (e.g., reactor temperature control), ensuring process safety.
4. Other FOXBORO Temperature & Process Transmitters
Foxboro offers complementary transmitters for diverse needs:
- FOXBORO RH924WC: Variant with Ethernet (OPC UA) for IoT-enabled remote monitoring (e.g., smart grid power plants).
- FOXBORO RH914WA: Compact version (single-input, RTD only) for space-constrained applications (e.g., small reactors).
- FOXBORO RH101FQ: Entry-level RTD transmitter (±0.1% FS) for general industrial use (e.g., pipeline monitoring).
- FOXBORO E2000: Pressure-temperature multi-variable transmitter, for integrated pipeline monitoring.
- FOXBORO I/A Series 205T: Smart transmitter with cloud connectivity, for centralized fleet management.
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