SITRANS FST090

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SITRANS FST090 is a portable clamp-on flowmeter designed for quick checks and flow verification without pipe cutting or flow interruption. It uses advanced digital signal processing (DSP) for high accuracy, fast response, and user-friendly operation.

Zalo Hotline: 0961.67.69.69

Categories: Flow, Transmitter Tags: Bộ chuyển đổi tín hiệu, Công nghiệp chế biến, Công nghiệp HVAC, Công nghiệp năng lượng, Xử lý nước, Xử lý nước thải Brand: Siemens

Description
Specifications

Key Features

Portable design with rugged, weatherproof housing
Quick, tool-free sensor installation without interrupting flow
Calculates optimal sensor position based on pipe and liquid parameters
Measurement error of <1%, and <0.15% under ideal conditions
Integrated flow disturbance compensation for bent pipe segments
Operates on a rechargeable battery for over 24 hours, with hot-swappable battery support

Measurement and Communication Capabilities

Measures volumetric flow, flow velocity, ultrasonic transit time, and totalized flow
Communication options include:
- Modbus RTU
- Analog output 4–20 mA
- Pulse/frequency output, relay output, USB
Graphical display with configuration menu and data logging to SD card
Optional configuration and integration via SIMATIC PDM software

Typical Applications

Temporary flow verification
Cross-checking against fixed meters
Measurement at inaccessible or uncuttable pipe sections
Maintenance support and field calibration

SITRANS FST090 combines stable measurement performance, intuitive operation, and high mobility — making it an ideal solution for field engineers in the water, energy, HVAC, and process industries.

Category	Specification
Design
Dimension (L × W × H)	320.4 × 244.8 × 175.4 mm (12.6 × 9.6 × 6.9 in)
Weight	2.8 kg (6.0 lb)
Housing material	Polypropylene (weatherproof)
Architecture
Input / display	4 pushbuttons, illuminated graphic display, 240 × 160 pixels
Programming	Menu assistant, free input, up to 50 measuring locations can be saved
Language selection	Switchable, with 14 languages available: English, German, Italian, French, Spanish, Portuguese, Danish, Swedish, Finnish, Dutch, Chinese, Japanese, Russian, Polish
Sensors
Sensor type	FSS200 clamp-on portable sensors, also compatible with older FUP1010 sensors
Sensor cable	PVC cable length: 6 m (19.6 ft) / 15 m (49 ft) with connector
Power
Transmitter power	DC 11.5 … 28.5 V @ 10 W
External power supply	100 … 240 V AC / 24 V DC, 10 W
Battery pack	Lithium-ion battery (99 Wh), 24 V DC Up to 24 hours of operation per charge Hot-swappable with power pack without interrupting measurement
Charger for battery pack	Quick charger function: 19 … 26 V DC, 2.8 A max External AC charger (AC-Adapter): 100 … 240 V AC, 50–60 Hz, 1.7 A
Adjustable measuring range
Flow rate range	±12 m/s (±40 ft/s), depending on pipe width (larger or smaller)
Flow direction	Bidirectional
Flow sensitivity	0.001 m/s (0.003 ft/s), independent from the flow rate
Input/output connector
Digital inputs – Stop counter	Optocoupler enabled ON: DC 2 … 10 V
Digital inputs – Reset counter	Optocoupler activated ON: DC 2 … 10 V
Output – Current	4 … 20 mA (isolated), external supply 10 … 30 V DC
Output – Relay	DC 30 V, AC 3 V max. Pulse: 41.6 ms … 5 s Frequency: 0 … 12.5 kHz (50% duty cycle)
Output – Pulse rate	Optical transistor 10 mA, DC 30 V max
Communication	Modbus RTU RS 485
Diagnostic option	Logger, alarms, and events presented in table format
USB service connection	USB – SIMATIC PDM / internal memory External memory: 4 GB (expandable up to 32 GB) for long-term recording
Accuracy
Accuracy	±1.0% of flow at speeds > 0.3 m/s (1 ft/s)
Repeatability	±0.25% (according to ISO 11631)
Zero drift	0.1% of flow; <±0.001 m/s (<±0.003 ft/s)
Data repetition rate	100 Hz
Environmental conditions
Operating temperature	–10 … +50 °C (14 … +122 °F)
Storage temperature	–20 … +60 °C (–4 … +140 °F)
Protection class	IP65 with lid closed IP67 with lid open
Certificates and approvals
General safety	UL, ULC, CE

SITRANS FST090

Key Features

Measurement and Communication Capabilities

Typical Applications

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