Coriolis Mass Flow Measurement Solution – Endress+Hauser COY31-Z | Promass Series
The Endress+Hauser COY31-Z is a high-precision Coriolis flow transmitter from the renowned Promass series, engineered for demanding industrial environments where accurate mass flow, density, and temperature measurement are mission-critical. Designed to pair seamlessly with Endress+Hauser Coriolis flow sensors, the COY31-Z delivers reliable, real-time process data across a wide range of industries.
Where This Product Is Used
The COY31-Z transmitter is specified by process engineers and instrumentation specialists across the following industries and applications:
- Chemical & Petrochemical Plants – Precise custody transfer and batch dosing of aggressive or viscous fluids
- Food & Beverage Processing – Hygienic mass flow measurement of syrups, oils, dairy, and beverages
- Pharmaceutical Manufacturing – GMP-compliant flow control for active ingredients and solvents
- Oil & Gas – Multiphase flow monitoring, loading/unloading terminals, and pipeline metering
- Pulp & Paper – Consistency and density measurement of slurries and coating fluids
- Water & Wastewater Treatment – Chemical dosing and effluent monitoring
- Energy & Power Generation – Fuel flow measurement and combustion optimization
Technical Specifications
| Parameter | Value |
|---|---|
| Model / SKU | COY31-Z |
| Manufacturer | Endress+Hauser |
| Series | Promass (Coriolis) |
| Device Type | Coriolis Flow Transmitter |
| Measured Variables | Mass flow, volumetric flow, density, temperature |
| Output Signals | 4–20 mA HART, Pulse/Frequency, PROFIBUS DP/PA, FOUNDATION Fieldbus |
| Display | Local display with backlit LCD (optional) |
| Power Supply | 85–260 V AC / 20–55 V DC |
| Protection Rating | IP67 / IP68 (NEMA 4X / 6P) |
| Ambient Temperature | –40 to +60 °C (–40 to +140 °F) |
| Approvals | ATEX, IECEx, FM, CSA, SIL 2 |
| Housing Material | Aluminum / Stainless Steel (optional) |
| Weight | Approx. 3.0 kg |
| Communication Protocol | HART 7, PROFIBUS, FF |
Why Engineers Specify This Model
- Multi-variable measurement – Simultaneously measures mass flow, density, and temperature from a single device, reducing installation complexity
- High accuracy – Typical mass flow accuracy of ±0.1%, suitable for custody transfer and fiscal metering
- Robust design – IP67/IP68 rated housing withstands harsh plant environments, washdowns, and temporary submersion
- Universal communication – Supports HART, PROFIBUS DP/PA, and FOUNDATION Fieldbus for seamless DCS/PLC integration
- SIL 2 certified – Suitable for safety-instrumented systems (SIS) per IEC 61508
- Easy commissioning – Intuitive local display and FieldCare/DeviceCare software support rapid startup
- Proven global track record – Endress+Hauser Promass transmitters are installed in thousands of plants worldwide
Complete System Bill of Materials
For a complete Coriolis measurement loop using the COY31-Z transmitter, the following components are typically required:
- COY31-Z – Coriolis flow transmitter (this unit)
- Promass sensor – e.g., Promass 80/83/100/300 series (ordered separately by pipe size and material)
- Connecting cable – Sensor-to-transmitter signal cable (remote mount configurations)
- Process connections – Flanges, tri-clamp, or threaded fittings per pipe spec
- Power supply unit – 24 V DC or 85–260 V AC supply
- HART communicator or fieldbus segment coupler – For configuration and diagnostics
- Mounting bracket – Wall or pipe mount kit (optional)
Compliance & Industry Standards
- ATEX / IECEx – Zone 1 & Zone 2 hazardous area certification
- FM / CSA – North American hazardous location approvals
- SIL 2 – Functional safety per IEC 61508 / IEC 61511
- OIML R117 / MID – Legal-for-trade custody transfer
- 3-A / EHEDG – Hygienic design for food & pharma (sensor-dependent)
- PED 2014/68/EU – Pressure Equipment Directive compliance
- RoHS / WEEE – Environmental compliance
Quality Assurance & Sourcing
At Konmask.com, every Endress+Hauser COY31-Z unit is:
- Sourced directly from authorized distributors or verified surplus channels
- Inspected for physical integrity, firmware version, and calibration certificate availability
- Tested for power-on functionality prior to shipment
- Shipped with original packaging, documentation, and calibration records where available
- Backed by our 90-day quality guarantee
How to Source This Part
- Confirm your sensor model – Verify the Promass sensor series (80, 83, 100, 300) to ensure transmitter compatibility
- Check communication protocol – Specify HART, PROFIBUS DP/PA, or FOUNDATION Fieldbus version required
- Verify hazardous area classification – Confirm ATEX/IECEx zone requirements if applicable
- Request a quote – Contact us via email or phone with your full order code for fastest response
- Lead time – In-stock units ship within 3–5 business days; special configurations within 2–4 weeks
📧 support@konmask.com | 📞 +0086 19859288691
Application-Specific FAQ
Q: Can the COY31-Z be used in hygienic / sanitary applications?
A: The transmitter itself is suitable; hygienic compliance depends on the paired Promass sensor model (e.g., Promass 83 with 3-A/EHEDG approval). Contact us to confirm the correct sensor pairing.
Q: Is the COY31-Z compatible with all Promass sensors?
A: The COY31-Z is designed for the Promass Coriolis sensor family. Compatibility depends on the specific sensor generation and order code. Please provide your existing sensor model for confirmation.
Q: Can it integrate with our existing PROFIBUS PA network?
A: Yes, the COY31-Z supports PROFIBUS PA communication. A DP/PA segment coupler is required to connect to a PROFIBUS DP master system.
Q: What is the difference between COY31-Z and other Promass transmitter variants?
A: The COY31-Z designation reflects a specific order code configuration (housing, approvals, I/O). Contact our team with your full application requirements for a precise model recommendation.
Q: Do you provide calibration certificates?
A: Where available, original Endress+Hauser factory calibration certificates are included. We can also arrange third-party recalibration upon request.
Q: What is your return policy?
A: We offer a 90-day quality guarantee. Units that fail to power on or show physical defects on arrival are eligible for replacement or full refund.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
