The Endress Hauser Promag 33A T15-AD1ED11D21A is an electromagnetic flow measuring transmitter engineered for precise quantification of conductive liquids across industrial processes. Built on Faraday’s Law of electromagnetic induction, this modular transmitter delivers flow measurement dynamics spanning 1000:1 with measurable velocities from below 0.033 ft/sec to over 33 ft/sec at specified accuracy. The system accommodates both compact and remote configurations, with remote sensor placement up to 656 feet from the transmitter.
## Technical Specifications
**Measurement Principle:** Electromagnetic induction; induced voltage proportional to flow velocity.
**Flow Range:** 0.033 ft/sec to 33 ft/sec (specified accuracy); peak flows to 41 ft/sec without overload. Measurement dynamics: 1000:1 operating range.
**Fluid Compatibility:** Conductive liquids with minimum conductivity 5 µS/cm. Demineralised water requires ≥20 µS/cm. Suitable for acids, alkalis, pastes, sludges, potable water, wastewater, sewage, milk, beer, wine, mineral water, yogurt, and molasses.
**Sensor Configuration (T15-AD1ED11D21A):**
• Liner: Teflon
• Pipe size: 0.5 inch (15 mm)
• Process connection: 1-inch threads, 316LSS with Viton gasket
• Electrodes: 316LSS
• Calibration: 3-Point Standard
**Electrical:**
• Power supply: 85–260 VAC, 50/60 Hz
• Signal outputs: Frequency and Current/HART
• All inputs and outputs galvanically isolated from power, measurement circuit, and each other
## Key Features
• Modular construction enables board-level expansion and modification
• E+H-Matrix interface with two-line illuminated display and three optical keypads (Touch Control)
• Keypad access without cover removal
• Removable DAT memory chip (EEPROM) stores sensor calibration data for simplified transmitter exchange
• NEMA 4X protection (compact version)
• 0.5-inch NPT cable entries (compact version)
• Zero suppression via external auxiliary voltage input
## Typical Applications
Industrial flow measurement in chemical processing, water treatment, food and beverage production, wastewater handling, and pharmaceutical manufacturing.
## Compatibility & Integration
RS-485 communication interface enables direct integration with supervisory control systems. Additional interfaces available depending on fitted module configuration.
