Rosemount 1151 Fully Intelligent Pressure Transmitter
The Rosemount 1151 series intelligent transmitter represents the current technological level of Rosemount, with overall performance improved by more than 250% compared to the 1151 transmitters produced by local Chinese manufacturers (Xiyi, Shangi). The Rosemount 1151 transmitter has now been completely discontinued and replaced by the newly launched Rosemount 3051 pressure transmitter and the Rosemount 2051 series pressure transmitters.
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Classification:
Pressure transmitter
Rosemount transmitter
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Detailed introduction
1. Product Overview:The Rosemount 1151 fully intelligent pressure transmitter, as a very important pressure transmitter from Rosemount, has always possessed strong vitality and has a high market share in the transmitter market. The Rosemount 1151 transmitter has gone through more than forty years of development, continuously improving in product performance and manufacturing processes, while maintaining its consistent style in appearance. The overall performance of the Rosemount 1151 transmitter has become increasingly refined. Since its introduction in 1969, it has been used for its continuously improved long-term reliability, and now there are over five million 1151 transmitters in use worldwide. It has also been widely selected in new or technological transformation projects across various industries in China (see Rosemount's performance report for details). The Rosemount 1151 fully intelligent transmitter represents the current technological level of Rosemount, with overall performance improved by more than 250% compared to the 1151 transmitters produced by local Chinese manufacturers (Xiyi, Shangyi). The Rosemount 1151 transmitter has now been completely discontinued and replaced by the newly launchedRosemount 3051 pressure transmitterand the Rosemount 2051 series pressure transmitters.
2. Product Specifications:
| Parameter | Specification |
|---|---|
| Measurement Types | Differential, Gauge, Absolute, Level |
| Reference Accuracy | ±0.075% of span (Smart models) |
| Long-Term Stability | ±0.1% of span over 2 years |
| Output Signal | 4–20 mA analog with HART digital communication |
| Turn-down Ratio | Up to 50:1 |
| Maximum Static Pressure | Up to 4500 psi (310 bar) |
| Power Supply | 12–42.4 VDC (depending on load resistance) |
| Temperature Range | –40°C to +85°C (–40°F to +185°F) ambient |
| Process Connections | 1/4–18 NPT, 1/2–14 NPT, and manifold-compatible options |
| Mounting Configurations | Direct, Bracket, Manifold |
| Certifications | Explosion-proof, Intrinsically Safe, SIL-rated (depending on model variant) |
| Display Option | Optional local LCD display |
| Housing Material | Aluminum, Stainless Steel (varies by model) |
Recommended Products:Brand new stock Rosemount 3051 series pressure transmitters
Here are the key features of the Rosemount 1151 Smart Pressure Transmitter—especially the "Smart" versions that incorporate HART communication:
🌟 Core Features
Smart Electronics with HART: Enables digital communication over existing 4–20 mA analog wiring, allowing for remote configuration, diagnostics, and calibration.
High Accuracy: Up to ±0.075% of span—ideal for critical process applications.
Long-Term Stability: Maintains ±0.1% accuracy for over two years without recalibration.
Versatile Configurations: Supports gauge, absolute, and differential pressure measurements across a wide span of process ranges.
Wide Rangeability: Turn-down ratios of up to 50:1 allow flexibility in process scaling.
Proven Durability: Withstands up to 4500 psi (310 bar) static pressure in high-pressure models.
Modular Design: Component interchangeability—electronics, sensors, and process connections can be serviced independently.
Explosion-Proof / Intrinsically Safe Options: Available for hazardous area installations, complying with global certifications.
Mounting Flexibility: Traditional and manifold mounting options for integration into legacy or modern systems.
Legacy Compatibility: Seamlessly integrates into plants using both older analog and newer digital systems.
FAQ for the Rosemount 1151 Smart Pressure Transmitter, tailored for engineers, technicians, and procurement teams:
🔧 Technical & Functional
Q: What types of pressure does the 1151 measure?
A: It supports differential, gauge, absolute, and level pressure measurements. The 1151DP, for example, measures differential pressure up to 1000 psi.
Q: What is the output signal?
A: Standard output is 4–20 mA with optional HART digital communication for Smart models.
Q: What is the reference accuracy?
A: Up to ±0.075% of span for Smart models.
Q: What’s the maximum static pressure rating?
A: Up to 4500 psi (310 bar) for high-pressure variants.
Q: Is the 1151 still in production?
A: No, it has been discontinued, but it remains widely supported and used in legacy systems.
🛠️ Installation & Maintenance
Q: Can I retrofit an analog 1151 to a Smart version?
A: Yes, Emerson offers Smart Retrofit Kits to upgrade analog 1151 transmitters to Smart functionality.
Q: What are the mounting options?
A: It supports direct, bracket, and manifold mounting configurations.
Q: Is it suitable for hazardous areas?
A: Yes, models are available with Explosion-proof and Intrinsically Safe certifications.
📦 Ordering & Compatibility
Q: Are spare parts still available?
A: Yes, many third-party suppliers and Emerson partners still offer spare parts and service kits.
Q: Is it compatible with modern control systems?
A: Yes, Smart models with HART can integrate with modern DCS and asset management systems.
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