Product Overview
The Rosemount 2240S is a high-accuracy, multi-input temperature transmitter for bulk-liquid storage and tank-gauging systems. It processes measurements from multiple temperature elements installed at different tank heights to calculate average liquid temperature and identify temperature stratification.
The transmitter can connect up to 16 three- or four-wire temperature elements and may incorporate an integrated water-level sensor.
Key Features
✔ Temperature-conversion accuracy of ±0.05°C
✔ Connects up to 16 temperature elements
✔ Supports three-wire and four-wire RTDs
✔ Average liquid-temperature calculation
✔ Temperature-stratification monitoring
✔ Integrated water-level sensor option
✔ Two-wire intrinsically safe Tankbus
✔ Online water-level sensor calibration
✔ Automatic temperature-element configuration
✔ Suitable for custody-transfer measurement
✔ Supports API Chapter 7.3 compliance
✔ Cryogenic temperature-sensor options
✔ IP66/IP67 protection
✔ NEMA 4X enclosure
✔ Suitable for hazardous areas
✔ No external power cabling required
Technical Specifications
| Specification | Details |
|---|---|
| Primary measurement | Multiple-point liquid temperature |
| Temperature conversion accuracy | ±0.05°C |
| Sensor inputs | Up to 16 RTD elements |
| RTD wiring | Three-wire or four-wire |
| Communication | Two-wire Tankbus/FOUNDATION Fieldbus |
| Power supply | Intrinsically safe Tankbus power |
| Additional measurement | Integrated water-level sensor |
| Enclosure protection | IP66/IP67 and NEMA 4X |
| Tank calculation | Average temperature and stratification correction |
| Calibration | Built-in online calibration for water-level sensor |
| Installation | Tank-top mounting |
| Custody transfer | Suitable for API Chapter 7.3 applications |
Compatible Sensors
- Rosemount 565 Multiple Spot Temperature Sensor
- Rosemount 566 Cryogenic Multiple Spot Temperature Sensor
- Rosemount 765 Temperature and Water-Level Sensor
- Rosemount 614 Cryogenic Spot Temperature Sensor
Typical Applications
- Crude-oil storage tanks
- Refined-product tanks
- Fuel terminals
- Chemical storage tanks
- LPG and LNG tanks
- Cryogenic storage tanks
- Refrigerated full-containment tanks
- Custody-transfer systems
- Tank inventory calculations
- Temperature-stratification monitoring
Industries
✔ Oil and gas
✔ Refineries
✔ Petrochemical
✔ Tank terminals
✔ LNG and LPG
✔ Chemical
✔ Marine terminals
✔ Cryogenic storage
✔ Custody transfer
