FOXBORO RH101FQ Product Introduction
1. Product Overview
The FOXBORO RH101FQ is a dedicated industrial temperature transmitter under Foxboro’s RH100 Series, engineered for accurate temperature measurement and signal conversion in process automation. It serves oil & gas, chemical processing, power generation, and petrochemical industries, focusing on reliable temperature monitoring of pipelines, reactors, and heat exchangers.
Ideal for applications like high-temperature reactor temperature tracking and pipeline thermal control, it integrates a RTD (Resistance Temperature Detector) input interface with stable signal output. Its rugged design withstands industrial harsh conditions (e.g., vibration, temperature fluctuations), while compliance with process standards ensures seamless integration with DCS/PLC systems, making it a trusted choice for critical temperature sensing.
2. Technical Parameters (Table)
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Category
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Specification
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Device Type
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RTD-based industrial temperature transmitter
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Input Compatibility
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RTD types: Pt100 (3-wire/4-wire); Temperature range: -200°C to +600°C (-328°F to +1112°F)
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Measurement Accuracy
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±0.1% of full scale (FS) at 25°C (77°F); ±0.2% FS over -200°C to +600°C range
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Output Signals
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Analog: 4–20 mA DC (2-wire); Digital: HART 7.0 (configuration & diagnostics)
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Power Supply
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12–42 V DC (2-wire loop power); Power consumption: ≤20 mA (max at 24 V DC)
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Environmental Ratings
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Operating temperature: -40°C to +85°C (-40°F to +185°F); Humidity: 5%–95% (non-condensing); Vibration resistance: 10 g (10–2000 Hz, IEC 60068-2-6); Protection class: IP66 (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
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Electrical Connection
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Terminal block (IP66); Optional: M12 connector
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Response Time
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≤1 second (90% step response for Pt100 input)
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Certifications
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CE; UL 61010-1; ATEX Zone 2 (Ex nA IIC T4 Ga); IECEx; SIL 2 (IEC 61508)
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3. Product Specifications & Features
3.1 Core Specifications
The FOXBORO RH101FQ is optimized for Pt100 RTD inputs (3-wire/4-wire), covering a wide temperature range (-200°C to +600°C) to fit both low-temperature pipeline and high-temperature reactor needs. Its ±0.1% FS accuracy at ambient temperature ensures precise temperature sensing, while ±0.2% FS accuracy over the full range minimizes drift caused by environmental changes—critical for long-term stable monitoring.
The 4–20 mA analog output enables direct connection to legacy control systems, and HART 7.0 supports remote configuration (e.g., temperature unit setting) and diagnostic checks (e.g., RTD open/short detection). The stainless steel 316L process connection resists corrosion from chemicals and saltwater, and IP66/NEMA 4X housing protects against dust and water jets—suitable for outdoor substations and washdown areas.
3.2 Key Features
- RTD Specialization: Optimized for Pt100 inputs (3-wire/4-wire) to maximize temperature measurement precision, avoiding compatibility issues with mixed sensor types.
- Wide Temperature Coverage: -200°C to +600°C range fits diverse industrial scenarios, from cryogenic processes to high-temperature reactions.
- Robust Environmental Adaptability: IP66/NEMA 4X housing and -40°C to +85°C operating range handle harsh conditions, reducing downtime from environmental damage.
- Remote Diagnostics: HART 7.0 enables real-time monitoring of RTD health (e.g., wire breakage), allowing proactive maintenance before measurement failure.
- Easy Integration: 2-wire loop power design and standard process connections simplify installation, cutting wiring and setup time.
4. Other FOXBORO Temperature & Process Transmitters
Foxboro offers complementary transmitters for varied process needs:
- FOXBORO RH101FC: TC (Thermocouple)-based temperature transmitter (J/K/T type), for ultra-high temperature (-270°C to +1700°C) applications.
- FOXBORO RH102FQ: Dual-input temperature transmitter (2×Pt100), for multi-point temperature monitoring (e.g., dual-zone reactors).
- FOXBORO I/A Series 205T: Smart temperature transmitter with Ethernet, for IoT-enabled remote temperature tracking.
- FOXBORO E2000: Pressure-temperature multi-variable transmitter, for integrated pipeline pressure & temperature monitoring.
- FOXBORO RH101FR: Low-temperature RTD transmitter (-270°C to +200°C), for cryogenic processes (e.g., LNG storage).
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