Rosemount 9195 Wedge Compact Flow Meter

• Product Name: Rosemount 9195
• Manufacturer: Emerson / Rosemount
• Model Series: 9195
• Type: Differential Pressure Level Transmitter

Description of Rosemount 9195 Wedge Flow Meter

The Rosemount 9195 Wedge Compact Flow Meter is an advanced electromechanical device designed for accurate and reliable measurement of liquid flow in full-pipe applications. It utilizes a wedge-shaped primary element and differential pressure sensing to deliver high performance in challenging process conditions.

Application of Rosemount 9195 Wedge Compact Flow Meter

The flow meter shall be suitable for use in industrial processes including, but not limited to:

• Water and wastewater treatment
• Chemical processing
• Power generation
• Oil & gas
• Mining and mineral processing
• Pulp and paper

The instrument shall be appropriate for liquid flow measurement in full-pipe metallic pipelines.

Design Standards and Compliance

The flow meter shall conform to the following standards (as applicable):

• ISO 9001 Quality Management System
• ASME B31.1/ASME B31.3 (Process Piping Standards)
• IEC/EN 61508 Functional Safety (SIL capability)
• ANSI/ISA 12.27.01 (for pressure-containing enclosures)
• NACE MR0175/ISO 15156 (for corrosive environments)
• RoHS and CE compliant

Primary Element

• Type: Wedge-shaped flow element
• Material: Corrosion-resistant metal (e.g., 316L SS or equivalent)
• Profile: Fixed-throat, integral flow conditioner
• Design: Suitable for single-phase liquids (clean or dirty)
• Designed for minimal pressure loss and robust performance in partially disturbed flow

Transmitter and Sensing

Differential Pressure (DP) Transmitter

• Model: Rosemount DP transmitter compatible with 9195 Wedge Compact Flow Meter
• Output: 4–20 mA, HART® communication
• Optional: FOUNDATION™ Fieldbus or PROFIBUS PA
• Accuracy: ±0.075% of calibrated span (typical)
• Zero stability: ±0.005% of calibrated span

Sensors

• Differential pressure sensors designed for DP flow measurement
• Static pressure/temperature compensation available

Flow Meter Performance

• Measurement Principle: Differential Pressure Across Wedge Element
• Accuracy: ±1.0% of rate (typical)
• Repeatability: ±0.2% of rate
• Turn-down ratio: ≥10:1
• Associated with no moving parts (robust long-term stability)

Materials of Construction

The flow meter and wetted parts shall be manufactured from corrosion-resistant materials, selected based on process fluid characteristics:

• Body: 316L Stainless Steel (standard)
• Bolting: Alloy material appropriate to process conditions
• Seals: Elastomers compatible with process fluid (e.g., Viton®, EPDM)
• Optional upgrades: Hastelloy C-276, Duplex/Super Duplex SS

Process Conditions

The flow meter shall be capable of operating under the following conditions as a minimum:

• Maximum Operating Pressure: Up to 103 bars (1500 psi) depending on model
• Maximum Operating Temperature: −40°C to 260°C (−40°F to 500°F) depending on configuration
• Wetted Materials: Compatible with process fluid

Installation Requirements

• Suitable for horizontal and vertical pipe installation
• Full pipe flow required
• Requires upstream/downstream straight-run minimums as defined by manufacturer
• Isolation valves and appropriate bypass may be included for maintenance

Electrical & Communication

• Power supply: 24 VDC nominal
• Output: 4–20 mA analog and digital communication
• Protocol options: HART®, FOUNDATION™ Fieldbus, PROFIBUS PA
• Ex approvals: Suitable for hazardous areas (Class I, Division 1/2; ATEX/IECEx)

Calibration & Certification

• Factory calibration traceable to national standards
• Calibration certificate provided
• Material certification (MTR) for wetted parts
• Loop check test report included

Documents & Deliverables

Vendor shall supply:

• Operation & Maintenance Manual
• Calibration Certificate
• Factory Test Report
• Installation Drawings
• Electrical Wiring Diagram
• Safety & Hazardous Area Certification (if applicable)

Warranty

Provide manufacturer’s warranty covering defects in materials and workmanship for not less than 12 months from date of commissioning or 18 months from shipment, whichever occurs first.