Rosemount 1151 Differential Pressure Transmitter

• Product Name: Rosemount 1151 Differential Pressure Transmitter
• Manufacturer: Emerson Automation Solutions
• Model Number: 1151
• Brand: Rosemount

Description of Rosemount 1151 Pressure Transmitter

The Rosemount 1151 Differential Pressure Transmitter is a field-proven, high-accuracy instrument designed for reliable measurement of differential pressure, gauge pressure, and liquid level in industrial process applications. Built for durability and long-term stability, the 1151 series has been widely used in oil & gas, power generation, water treatment, and general process industries.

Key Features of Rosemount 1151 Pressure Transmitter

• High accuracy and repeatability
• Rugged, field-proven design
• Wide range of differential pressure measurement
• Stable performance in harsh environments
• Explosion-proof and intrinsically safe options available
• Compatible with standard 4–20 mA output systems
• Minimal maintenance requirements

Measurement Capabilities of Rosemount 1151 

Parameter	Specification
Measurement Type	Differential Pressure (DP), Gauge, Level
Rangeability	Up to 10:1
Accuracy	±0.2% of calibrated span (typical)
Output Signal	4–20 mA DC
Response Time	≤ 200 ms (typical)
Long-Term Stability	±0.2% URL over 12 months

Pressure Specifications of Rosemount 1151 Transmitter

Parameter	Specification
Maximum Working Pressure	Up to 3,000 psi (varies by model)
Static Pressure Limit	Model dependent
Overpressure Protection	Up to rated working pressure

Electrical Specifications of Rosemount 1151 

Parameter	Specification
Power Supply	12–45 VDC
Load Resistance	0–500 ohms (typical)
Output Type	Two-wire 4–20 mA

Process Connections

• 1/4–18 NPT
• 1/2–14 NPT
• Flanged mounting options available
• Coplanar manifold compatibility

Materials of Construction

Component	Material
Wetted Parts	316 Stainless Steel
Housing	Aluminum (standard)
Diaphragm	316L Stainless Steel
O-Rings	Viton (standard)

Optional exotic materials available for corrosive service.

Environmental Specifications

Parameter	Specification
Operating Temperature	–40°C to +85°C
Storage Temperature	–50°C to +100°C
Enclosure Rating	NEMA 4X / IP66
Hazardous Area Approvals	Explosion-proof, Intrinsically Safe (model dependent)

Applications

• Flow measurement (with primary elements)
• Tank level monitoring
• Filter monitoring
• Pump differential pressure
• Boiler drum level
• HVAC pressure control

Industries served:

• Oil & Gas
• Power Plants
• Water & Wastewater
• Chemical Processing
• Manufacturing

Advantages

• Proven long-term reliability
• Cost-effective solution for DP measurement
• Simple installation and commissioning
• Wide industry acceptance
• Compatible with legacy control systems

Ordering Information

When specifying the Rosemount 1151, provide:

• Measurement range
• Process connection type
• Wetted material requirements
• Hazardous area classification
• Mounting configuration
• Output requirement

Summary

The Rosemount 1151 Differential Pressure Transmitter delivers reliable, accurate, and rugged differential pressure measurement suitable for demanding industrial environments. Its durable construction and stable performance make it a trusted solution for critical process control applications.