Endress+Hauser t-mass 65F Thermal Mass Flowmeter

Overview

The Endress+Hauser t-mass 65F is an inline thermal mass flowmeter designed for the direct mass flow measurement of industrial gases and compressed air. With a typical turndown of 100:1, it accurately captures both normal operational flow rates and low-flow leakage detection, making it a valuable tool for compressed air energy audits and gas distribution monitoring.

As the official authorized partner and exclusive regional representative for Endress+Hauser, Seven Star LLC proudly supplies the Endress+Hauser t-mass 65F to industrial facilities and utilities across the Sultanate of Oman and the wider GCC, backed by genuine factory calibration, full documentation, and local technical support.

Measurement Principle

The Endress+Hauser t-mass 65F operates on the thermal dispersion principle. Two temperature sensors are exposed to the gas stream: one heated slightly above process temperature and one measuring the reference gas temperature. As gas flows past the heated sensor, it carries heat away at a rate proportional to mass flow, and the power required to maintain the temperature differential is measured and converted directly into mass flow rate.

Because the measurement is a direct mass reading, no separate pressure or temperature compensation is required as with volumetric flow technologies, which simplifies installation and improves long-term accuracy. The integrated gas engine allows the device to be configured for 20 freely selectable gases, giving plant engineers flexibility to redeploy the same instrument across different gas services.

Engineering Design of the Endress+Hauser t-mass 65F

The sensor is available in pipe diameters from 0.5 inch to 4 inch (12.7 mm to 102 mm) with flanged process connections, rated for operating pressures up to 580 psi and medium temperatures from –40°C to +130°C. The compact transmitter operates in ambient temperatures from –20°C to +60°C, with a digital front panel display for local readouts and configuration.

Outputs include current, frequency, and switch signals alongside network/fieldbus connectivity for integration into plant monitoring systems, allowing the t-mass 65F to feed both local indication and centralized energy management or SCADA platforms directly.

Key Features

The Endress+Hauser t-mass 65F is engineered for direct, reliable gas mass flow measurement, and the Endress+Hauser t-mass 65F is widely used for compressed air efficiency programs across industrial plants:

• Measures mass flow directly with no separate pressure or temperature compensation required.
• Delivers a typical turndown ratio of 100:1, capturing both operational flow and low-flow leakage.
• Achieves measurement accuracy of ±1.5% o.r. across 10 to 100% of full scale.
• Includes an integrated gas engine configurable for 20 freely selectable gases.
• Covers pipe diameters from 0.5 inch to 4 inch (12.7 mm to 102 mm).
• Handles medium temperatures from –40°C to +130°C and operating pressures up to 580 psi.
• Provides current, frequency, and switch outputs with network/fieldbus connectivity.
• Features a digital front panel display for straightforward local configuration and diagnostics.

Industrial Applications

The Endress+Hauser t-mass 65F is specified for compressed air system audits, industrial gas distribution monitoring, natural gas measurement, and energy management programs where leak detection and accurate mass-based accounting drive real cost savings. It also suits process plants tracking nitrogen, oxygen, and other utility gas consumption across multiple points.

As the officially authorized partner for Endress+Hauser, Seven Star LLC distributes the t-mass 65F to industrial facilities throughout Oman and the GCC, including projects in the Sohar and Salalah economic zones, manufacturing plants, and utility distribution networks, supported by regional stock availability and factory-trained technical staff.

Technical Specifications

Key technical parameters for the Endress+Hauser t-mass 65F are summarized below.

Why Choose Seven Star LLC for Endress+Hauser Thermal Mass Flowmeters

Getting real value from a thermal mass meter on a compressed air or gas efficiency program depends on configuring the integrated gas engine for your actual gas composition and setting pipe size correctly for the flow range you need to capture, from normal operation down into leak-detection territory. Seven Star LLC helps your facilities and energy teams configure the t-mass 65F for the correct gas service and pipe diameter before shipment, drawing on our authorized Endress+Hauser partnership across Oman and the wider GCC. We also support industrial plants across Muscat, Sohar, and Salalah running compressed air audit and energy management programs by planning multiple metering points together, so gas efficiency data feeds cleanly into a single plant-wide monitoring system, and we help facilities plan periodic recalibration schedules to keep leak-detection thresholds accurate as compressed air demand patterns shift over time.

Request a Quote for Endress+Hauser t-mass 65F Thermal Mass Flowmeter

For compressed air and gas distribution systems standardizing on the Endress+Hauser t-mass 65F, Seven Star LLC is ready to support your project with a formal RFQ, technical datasheet, and delivery timeline. Regional warehouse stock and factory-trained instrumentation engineers mean faster lead times and reliable after-sales support across Oman and the GCC. As the authorized partner for Endress+Hauser in Oman and the GCC, contact our instrumentation division today to configure the right t-mass 65F variant for your gas service, complete with genuine calibration certificates and full documentation.

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