Product Overview

The T-Easic FTS flow sensor is a calorimetric flow measurement device designed for accurate and reliable detection of liquid flow in industrial processes. Utilizing a calorimetric principle, it measures flow speed and volume without requiring contact with the medium or intrusive components. The sensor supports pipe diameters of ≥ 25 mm and operates across a wide range of media including water, oil A/B, and taught-in fluids. With high measurement accuracy and robust environmental performance, the T-Easic FTS delivers precise flow data in both relative speed and volume flow modes. Its compact design, combined with integrated temperature sensing and IO-Link communication, makes it ideal for integration into automated systems where real-time flow monitoring is essential.

Key Features and Technology

The T-Easic FTS employs a calorimetric measurement process to determine fluid flow speed, offering non-invasive, reliable performance across various media. The sensor features a probe tip that must be placed in the center of the pipe for optimal accuracy. It supports measuring ranges from 3 cm/s to 300 cm/s (water) or up to 600 cm/s (oil A/B), depending on the medium. Temperature measurement is integrated, with an accuracy of ±1 °C and a response time under 5 seconds. The device offers high repeatability (<1 cm/s) and resolution down to 0.01 m/s for speed and 0.1% relative via IO-Link. Response times are less than 2.5 seconds, ensuring fast feedback in dynamic process conditions.

Technical Characteristics

The T-Easic FTS delivers a measurement accuracy of ±7% from the measured value plus 2% of the measuring range end value. It operates within a temperature range of –40 °C to +150 °C and withstands process pressures from –1 bar to 100 bar, with specific limits based on T-connector size: up to 40 bar (DN15/DN25), 25 bar (DN40), or 20 bar (DN50). The sensor operates on a supply voltage of 9 V DC to 30 V DC and features IO-Link V1.1 and COM3 (230.4 kbit/s) interfaces for data exchange. Temperature resolution is less than 0.1 °C, with drift under 0.5 cm/(s·K). Output zones include three DN settings, enabling flexible signal configuration. Power consumption is less than 2 W at 24 V DC without output load.

Configuration and Integration

The T-Easic FTS integrates seamlessly into industrial automation systems via IO-Link V1.1 or COM3 (230.4 kbit/s), enabling direct communication with PLCs and HMIs. The device supports multiple operating modes: relative speed (%), volume flow, and total volume, as well as relative teach (%) for calibration. All electrical connections are reverse polarity and overload protected, with short-circuit protection on Q1 and Q2. A dedicated energy-limited circuit is required per UL61010-1 3.1 standards to ensure safe operation. The sensor’s output resolution (0.1% relative) can be accessed via IO-Link for precise process control. Proper installation requires placing the probe tip in the center of the pipe and ensuring full pipe filling without air bubbles.

Operating Environment

The T-Easic FTS is designed to operate reliably under a wide range of environmental conditions, with a process temperature range from –40 °C to +150 °C. For media temperatures above 100 °C, the distance between the housing base and top of the process connection adapter must be at least 25 mm; otherwise, the sensor cannot be used due to insufficient clearance. The device is rated for pressures up to 100 bar under standard conditions, with reduced limits based on T-connector size. It operates in environments where process media fall into Group 2 (other substances) as defined by the Pressure Equipment Directive 2014/68/EU. The sensor complies with good engineering practice under Article 13 of this directive.

Industrial Applications

The T-Easic FTS is suitable for use in a variety of industrial applications involving liquid flow monitoring, such as process control in manufacturing, chemical processing, and fluid handling systems. It is particularly effective in environments where non-invasive measurement is required to avoid contamination or damage to sensitive media. The sensor’s ability to measure both speed and volume flow makes it ideal for metering, level control, and process optimization. Its compatibility with water, oil A/B, and taught-in fluids ensures broad applicability across different industries. Applications include pumping systems, filtration processes, and storage tanks where accurate, real-time flow data is critical.