Product Overview
A Rosemount pressure transmitter measures process pressure and converts the measurement into an standardized output signal for process monitoring, control, and instrumentation systems.
- Depending on the model, Rosemount transmitters can be configured for:
- Differential pressure measurement
- Gauge pressure measurement
- Absolute pressure measurement
- Differential-pressure-based flow measurement
- Differential-pressure-based level measurement
The appropriate transmitter configuration depends on the required pressure range, measurement type, process medium, operating temperature, process connection, wetted materials, output signal, communication protocol, and installation arrangement.
Working Principle & Configuration
A pressure transmitter uses a sensing element to detect process pressure and converts the measured pressure into an electrical output. In a typical 4-20 mA HART configuration, the analog current represents the measured process variable while digital communication provides additional device information, configuration data, and diagnostic details.
Measurement Configurations & Typical Applications
|
Measurement Type |
Typical Industrial Application |
|
Gauge Pressure |
Pipeline pressure, pump discharge, compressor pressure, vessel monitoring |
|
Absolute Pressure |
Vacuum systems and applications requiring absolute pressure reference |
|
Differential Pressure |
Flow measurement, filter monitoring, pressure-drop measurement, closed-tank level measurement |
|
Remote Seal Configuration |
High process temperature, corrosive media, viscous media, or difficult-to-access connections |
|
Manifold Assembly |
Isolation, equalization, and transmitter maintenance arrangements |
|
In-Line Configuration |
Direct process connection for applicable gauge or absolute pressure measurements |

Versatile Pressure References: Dedicated models and sensor ranges available for differential, gauge, and absolute pressure.
Multiple Output & Communication Options: Depending on the model, interfaces include 4-20 mA, HART, WirelessHART, FOUNDATION Fieldbus, and PROFIBUS.
Flexible Process Interfaces: Configurable with threaded/flanged connections, valve manifolds, and diaphragm seals.
Local Operator Interfaces: Optional local displays for on-site process indication and configuration.
Application Scalability: Factory or field-configurable for direct pressure, level, or DP-flow measurement systems.
Technical Specifications
Specifications vary by Rosemount model and ordering configuration. The following parameters should be verified during product selection and quotation:
|
Parameter |
Selection Requirement / Verification |
|
Product Type |
Industrial Pressure Transmitter |
|
Measurement Type |
Differential, gauge, or absolute pressure |
|
Pressure Range |
Based on normal operating pressure and required span |
|
Reference Accuracy |
Model- and range-dependent |
|
Rangedown & Static Pressure |
Required for accurate DP and high-pressure applications |
|
Wetted Materials |
316L SST, Alloy C-276, Tantalum, etc. (match process medium) |
|
Process Connection |
Thread, flange, manifold, or seal arrangement |
|
Output & Communication |
4-20 mA HART, WirelessHART, Fieldbus, PROFIBUS |
|
Power Supply & Electrical |
Confirm cable entry and power requirements |
|
Hazardous-Area Approvals |
ATEX, IECEx, FM, CSA (confirm per installation location) |
|
Accessories |
Manifolds, remote seals, primary elements, process flanges |
Applications
Pipeline & Process Monitoring
Gauge or absolute pressure tracking in pipelines, pump discharge lines, compressors, vessels, and utilities.
Differential Pressure & Flow Measurement
Filter and strainer differential pressure, equipment pressure drops, and DP flow measurement using primary elements (e.g., orifice plates).
Tank Level Measurement
Liquid level determination in closed, vented, or pressurized vessels using appropriate DP or gauge setups.
Chemical & Petrochemical Processing
Demanding environments requiring rigorous material compatibility, temperature ratings, and hazardous-area compliance.
Water & Utility Systems
Municipal water pipelines, pump stations, filter monitoring, and equipment protection.
OEM & Skid Systems
Engineered as core instrumentation for packaged skids, matching specific space, connection, and control architectures.
Procuring branded industrial instrumentation requires rigorous verification to ensure operational safety and project compliance:
Model & Ordering-Code Verification: Cross-check the requested model and ordering code against technical sheets or legacy equipment before order confirmation.
Configuration Audit: Validate measurement type, sensor range, output protocol, wetted materials, manifolds, and remote seals.
Nameplate Identification
For replacement orders, provide an existing nameplate photo or complete model code to guarantee an exact configuration match.
Documentation & Certification
Project-specific documents can include calibration certificates, certificates of conformity, material traceability (e.g., EN 10204 3.1), approval certificates, and inspection records. (Must be requested at quotation stage).
Supply Traceability
As a trusted supplier or channel partner, we provide clear product identification and reference official Emerson/Rosemount manufacturing specifications to ensure full transparency.
Product Selection & Configuration Workflow
To streamline your inquiry and ensure technical accuracy, follow this 7-step selection guide:
Step 1 - Define the Measurement Type: Specify differential, gauge, absolute, level, or flow.
Step 2 - Define the Pressure Range: Provide normal operating pressure, min/max limits, required span, and static pressure (for DP).
Step 3 - Check Process Conditions: Confirm medium, operating/ambient temperatures, corrosiveness, viscosity, solids, and vacuum conditions.
Step 4 - Select Process Connections & Wetted Materials: Match existing piping, flange standards, and corrosive-resistant alloy requirements.
Step 5 - Match the Control-System Interface: Confirm protocol compatibility (HART, Fieldbus, PROFIBUS) with your DCS, PLC, or SCADA host.
Step 6 - Confirm Approvals and Documentation: Specify hazardous-area ratings (ATEX/IECEx/FM), safety requirements, and calibration certificates.
Step 7 - Submit Complete RFQ Information: Send your parameters for a rapid, precise technical review.
FAQ
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