Xiamen ZhiCheng Automation Technology Co., Ltd
"Precision Engineered, Globally Trusted – Innovating Automation Control & Modular Excellence."
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The Foxboro RH924YL is a high-accuracy differential pressure transmitter engineered for critical process measurement in extreme industrial environments. As part of Foxboro’s flagship RH Series, this transmitter features a rugged Hastelloy C-276 sensor with full-welded construction, ensuring unmatched corrosion resistance in aggressive media like sulfuric acid, chlorine, or seawater. Designed for SIL 3 safety compliance, it delivers precise ΔP measurement (spanning 0.1 kPa to 40 MPa) with 4–20 mA + HART® 7 output. The RH924YL’s IP68/NEMA 6P-rated stainless steel housing withstands submersible depths up to 20 meters, while its modular electronics enable field reconfiguration without process interruption. Ideal for refineries, chemical plants, and offshore platforms, it integrates seamlessly with Foxboro I/A Series DCS and modern control architectures.
The RH924YL excels in high-risk process industries:
| Parameter Category | Specification / Attribute |
|---|---|
| Product Type | Pneumatic Force-Balance Pressure Transmitter |
| Model Number | RH924YL |
| Series | Foxboro Spec 200 Legacy Line (Discontinued) |
| Measurement Type | Absolute Pressure (Specific suffix variant) |
| Pressure Range | Standard Span: 0–50 to 0–500 psia Overpressure Limit: 1.5× full scale Proof Pressure: 2× full scale |
| Output Signal | Pneumatic: 3–15 psi (0.2–1.0 bar) linear output |
| Supply Pressure | 20–35 psi (1.38–2.41 bar) clean/dry instrument air |
| Accuracy | ±0.5% of calibrated span (incl. linearity, hysteresis, repeatability) |
| Operating Principle | Force-balance with absolute pressure capsule |
| Wetted Materials | Capsule: Ni-Span-C Seals: Viton®/Teflon® (Suffix "YL" = special seal package) Process Connection: 316 SS |
| Process Connection | Standard: 1/2" NPT male Options: ANSI/ASME flanges, DIN 16288 |
| Housing | Cast aluminum (epoxy-coated grey) |
| Enclosure Rating | NEMA 4X / IP66 (Weatherproof, corrosion-resistant) |
| Ambient Temp. Range | -40°F to +185°F (-40°C to +85°C) |
| Process Temp. Limits | -40°F to +300°F (-40°C to +149°C) with Viton® seals |
| Response Time | <1.5 seconds (90% step change) |
| Zero/Span Adjustment | External calibration screws with locking nuts |
| Mounting | Vertical orientation recommended (for condensate drainage) |
| Hazardous Approvals | Class I Div. 1 Groups A-D (UL/CUL) ATEX: Ex d IIC T6 (Optional) |
| Weight | 6.2 lbs (2.8 kg) |
| Compliance | ASME B40.1, EN 837-1 |
| Status | Discontinued (Last production: Late 1990s) |
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Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are
perfectly.
we are major in PLC,Sensors,HIM,Transmitters.
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