Product Overview: Flowphant T DTT31 Flow Switch
A robust thermal flow switch engineered for safe, low-pressure-loss monitoring of liquid flows, the Flowphant T DTT31 comes with a user-friendly digital display and rotatable housing for flexible installation.
Key Specifications
- Measurement Range: 0.03 to 3 m/s (0.1 to 9.84 ft/s) — displayed as relative mass flow percentage.
- Measurement Accuracy: Varies by range — 2% to 10%.
- Operating Temperature: –20 °C to +85 °C (–4 °F to +185 °F); can withstand CIP cleaning up to 130 °C.
- Max Pressure: Up to 100 bar (~1740 psi).
Functionality & Design Features
- Thermal (Calorimetric) Sensing Principle: Measures flow rate by detecting heat transfer from a heated sensor cooled by the passing liquid.
- Outputs:
- 1 or 2 PNP switch outputs
- Optional 4–20 mA analog output for flow or temperature readings.
- Display & Usability:
- Built-in digital readout for quick onsite checks.
- Top housing rotates up to 310°, and the display itself rotates — making readings accessible from any angle.
- Configurable via Endress+Hauser’s FieldCare (or ReadWin 2000) software for easy setup and data management.
Applications & Approvals
Ideal for a variety of industrial uses, including:
- Monitoring cooling water in pumps, turbines, compressors, and heat exchangers
- Leak detection and lubrication cycle checks
- Filter integrity in beverage production lines Certifications:
- Marine-approved for use in maritime settings (DTT31 variant)
- 3-A hygiene-certified for food and beverage applications (available in DTT35 variant)
Summary Table
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Feature
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Details
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Measurement Range
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0.03–3 m/s (liquid)
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Accuracy
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2–10% depending on range
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Temperature Range
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–20 °C to +85 °C (CIP-able to 130 °C)
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Max Pressure
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100 bar (~1740 psi)
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Outputs
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1–2 PNP switches; optional analog output
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Display Orientation
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Rotatable housing (310°) & display
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Configuration Software
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FieldCare or ReadWin 2000
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Approvals
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Marine (DTT31); 3-A hygienic (DTT35)
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Why It Stands Out
- Minimal pressure drop ensures process efficiency.
- Highly configurable outputs and rotation features cater to diverse installation needs.
- Local display and PC configuration options make setup, monitoring, and maintenance straightforward.
- Flexible approvals (marine or hygienic) increase its versatility across industries.
