Endress+Hauser COV45-41TN1 Vortex Flow Transmitter | Replacement, Equivalent & Selection Guide
The Endress+Hauser COV45-41TN1 is a compact vortex flow transmitter from the Prowirl C 200 series, engineered for precise volumetric and mass flow measurement of liquids, gases, and steam in demanding industrial environments. This page serves as a comprehensive selection, replacement, and compatibility reference for engineers and procurement teams sourcing the COV45-41TN1 or its functional equivalents.
Technical Specifications
| Manufacturer | Endress+Hauser |
| Model / SKU | COV45-41TN1 |
| Series | Prowirl C 200 |
| Measurement Principle | Vortex (Kármán vortex street) |
| Measured Variables | Volume flow, mass flow (with integrated temperature/pressure compensation) |
| Process Media | Liquids, gases, saturated & superheated steam |
| Nominal Diameter | DN15–DN300 (½”–12″) |
| Process Pressure | Up to 100 bar (1450 psi) |
| Process Temperature | –200 to +400 °C (–328 to +752 °F) |
| Output Signal | 4–20 mA HART, Pulse/frequency |
| Power Supply | DC 18–30 V / AC 85–260 V |
| Protection Rating | IP67 / NEMA 4X |
| Approvals | ATEX, IECEx, FM, CSA (Ex versions) |
| Wetted Materials | 316L stainless steel / Alloy C-22 (optional) |
| Weight | ~1.5 kg (varies by size) |
Compatible Replacement & Equivalent Models
The following models are functionally compatible or serve as direct/near-direct replacements for the COV45-41TN1 in most applications. Always verify process conditions and communication protocol before substitution.
| Model | Brand | Type | Compatibility Notes |
|---|---|---|---|
| COV45-41TN1 | Endress+Hauser | OEM Original | Exact match |
| Prowirl 72 / 73 | Endress+Hauser | Predecessor series | Same vortex principle; check flange rating |
| SITRANS FX330 | Siemens | Cross-brand equivalent | HART output; verify DN size |
| Yokogawa YEWFLO DY | Yokogawa | Cross-brand equivalent | Similar accuracy class; FOUNDATION Fieldbus option |
| Emerson Rosemount 8800D | Emerson | Cross-brand equivalent | Dual-sensor design; suitable for steam |
| ABB ProcessMaster FEP300 | ABB | Alternative (electromagnetic) | For conductive liquids only; no steam |
Need help selecting the right replacement? Contact our engineers at [email protected].
Why Choose the Original COV45-41TN1
- Proven accuracy: ±0.75% of reading for liquids; ±1.0% for gases and steam
- Integrated multivariable measurement: simultaneous volume flow, temperature, and calculated mass flow
- Robust construction: no moving parts — minimal maintenance, long service life
- Wide media compatibility: single device handles liquids, gases, and steam
- Global approvals: ATEX / IECEx / FM / CSA for hazardous area installations
- Seamless integration: native HART 7 communication for DCS/SCADA connectivity
Typical Applications
- Steam flow measurement in power generation and utilities
- Natural gas and compressed air metering
- Chemical process flow control (acids, solvents, hydrocarbons)
- Custody transfer and fiscal metering (with appropriate approvals)
- HVAC energy monitoring (chilled water, hot water loops)
- Pharmaceutical and food-grade process lines (with hygienic options)
System Compatibility
The COV45-41TN1 integrates natively with the following control platforms via HART 7:
- Siemens SIMATIC S7-300 / S7-400 / S7-1500 PLC series
- ABB System 800xA DCS
- Emerson DeltaV DCS
- Honeywell Experion PKS
- Yokogawa CENTUM VP
- Rockwell Automation ControlLogix / CompactLogix (via HART multiplexer)
For PROFIBUS PA or FOUNDATION Fieldbus variants, please specify at time of order.
Selection Guide
- Media type: Liquid → COV45 standard | Steam → confirm temperature/pressure rating | Gas → verify Reynolds number range
- Pipe size: Match nominal diameter (DN) to your process line; COV45 covers DN15–DN300
- Process temperature: Standard: –40 to +260 °C | High-temp option: up to +400 °C
- Output protocol: 4–20 mA HART (standard) | PROFIBUS PA / FF (specify on order)
- Hazardous area: Standard (IP67) or Ex-rated (ATEX/IECEx) — confirm zone classification
- Flange standard: EN 1092-1 (PN16–PN40) or ASME B16.5 (Class 150–300)
Not sure which variant fits your system? Send your P&ID or datasheet to [email protected] for a free selection review.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified OEM channels
- Factory calibration certificates available upon request
- Batch traceability and material certificates (EN 10204 3.1) provided for critical applications
- Pre-shipment inspection available; third-party inspection (SGS / BV) on request
- Warranty: 12 months from date of shipment
How to Order
- Confirm model number: COV45-41TN1
- Specify quantity and required delivery date
- Provide shipping address and preferred Incoterms (EXW / FOB / CIF)
- Submit your inquiry to [email protected] or call +0086 19859288691
- Receive quotation within 1 business day; lead time confirmed at order placement
Replacement & Compatibility FAQ
Q: Can the COV45-41TN1 replace a Prowirl 72 directly?
A: In most cases yes — same vortex principle and HART output. Verify flange rating (PN vs. ASME) and process temperature range before installation.
Q: Is the COV45-41TN1 suitable for saturated steam?
A: Yes. With integrated temperature compensation, it calculates mass flow for saturated steam without an external pressure transmitter.
Q: What is the minimum flow velocity for accurate measurement?
A: Typically 0.3 m/s for liquids and 4 m/s for gases/steam. Consult the datasheet for your specific DN size.
Q: Can I use this transmitter in a hazardous (Ex) area?
A: The -41TN1 suffix indicates a standard (non-Ex) version. For ATEX/IECEx zones, specify the appropriate Ex variant at time of order.
Q: Do you supply calibration certificates?
A: Yes — factory calibration certificates are included as standard. NIST-traceable or DAkkS certificates available on request.
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