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概述

The World‘s Only Clamp-On Steam Meter: FLUXUS ST-LT

FLEXIM has been setting standards for 30 years, and with the FLUXUS ST steam meter series, boundaries for non-invasive measuring technology have been pushed again.

Non-invasive and efficient

FLUXUS ST-LT measures steam flow non-invasively from the outside of the pipe. Non-invasive steam flow measurement means measuring without any interruption of operation and supply. Since clamp-on ultrasonic transducers are simply mounted on the outside of the pipe, it requires just minimal installation effort and no opening of the pipeline.

The acoustic measuring method proves to be impressive with its exceptionally high measuring dynamics, is highly sensitive even at very low flow velocities and functions independently of the flow direction. Due to this large flow range (flow velocities from 0.01 m/s up to 60 m/s), there is no need to reduce pipe diameter to fit an inline meter’s requirement of minimum flow velocity. Moreover, the non-invasive measurement does not cause any pressure loss. The transducer mountings can be completely insulated to reduce any heat loss to the environment.

With FLUXUS ST-LT, for the first time ever, it is possible to capture all steam usage from very low to very high flow rates with one meter size.

Completely maintenance-free

Non-invasive steam flow measurement also means measuring without direct contact with the medium flowing in the pipe. FLUXUS ST has no moving parts. Therefore, FLUXUS ST-LT is not subjected to wear and tear and does not require any maintenance.

FLUXUS ST-LT measures volume and mass flow of saturated and super­heated steam at temperatures up to 180 °C. The clamp-on ultrasound system is available as both a stationary and a portable meter.

Fixed and versatile

FLUXUS G722 ST-LT is a fixed installed flow meter for steam and offers a variety of digital communication interfaces such as Profibus, Modbus TCP and others.

100% process availability is guaranteed when using a FLEXIM solution – the installation of a FLUXUS G722 ST-LT does not disturb the steam process itself at any time.

优点

  • Reliable, non-invasive steam measurement
  • High dynamic flow range even at low flow velocities
  • no pipe diameter reduction – zero pressure loss
  • Integrated mass flow measurement

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行业应用

技术参数

测量不确定度(体积流量)
±0,3 % of reading ±0.005 m/s
Measurement uncertainty at the measuring point (volumetric flow rate)
±1..3 % of reading ±0.005 m/s, depending on application
重复性
±0,15% of reading, ±0,01 m/s
流量通道
1 or 2
Medium
saturated steam, superheated steam
Process temperature
max. 180°C non-Ex
max. 165°C ATEX Zone 2
max. 155°C ATEX Zone 1
Process pressure
min. 3 bar abs.
Pipe diameter range
20mm…1000mm
流速范围
0,01m/s…60m/s (depending an pipe size and transducer)
防爆
FLUXUS G608 ST Transmitter:
ATEX / IECEx Zone 2
Transducers:
ATEX / IECEx Zone 1 or Zone 2
通信协议
Modbus RTU, Modbus TCP, Profibus PA, FF H1, BACnet MS/TP, BACnet TCP
数字通信
USB Interface
附加信息
please have your specific application tested for feasibility