Ultrasonic flow meter M-Flow PW

The fixture is a lightweight, compact device comprising a sensor that can be fitted to a pipe of variable diameter, and a remote digital converter.

M-Flow PW stationary ultrasonic flowmeter

Benefits

• Measurement accuracy: ±1.5%,
• Fast response time: 0.2 sec,
• Compact dimensions: 130 x 140 mm,
• Output signals: 4-20 mA, pulse output and alarm output,
• Optional RS485 MODBUS™ communication.

Operator interface accessible without opening the box

A display and integrated keypad enable the user to configure and view all parameters.

Internal menus are available in several languages (French, English, German, Spanish and Japanese).

Features

Adaptability to various fluids

The FSS is designed to measure homogeneous liquids capable of propagating ultrasonic waves, including service water, waste water, industrial water, seawater, pure water, irrigation water, oil and many others. This versatility makes it ideal for a wide range of industrial applications.

Ultrasonic Transit Time Difference Measurement

The FSS uses a single-channel transit time difference ultrasonic measurement method, guaranteeing optimum accuracy even under variable conditions.

Sensor and piping selection

The FSS offers different sensor options depending on the type of installation, external diameter and pipe material:

• FSSA (V-mount): 25-225 mm - Plastic (PVC, etc.) or Metal (stainless steel, steel, copper, aluminium, etc.)
• FSSC (V-mount): 50-600 mm
• FSSC (Z-mounted): 600-1200 mm

All three sensors work with plastic (PVC, etc.) or metal (stainless steel, steel, copper, aluminum, etc.) materials.

Please note that the FSSC sensor must be selected for the following pipes:

• PP pipe with a thickness of 15 mm or more
• PVDF pipe with a thickness of 9 mm or more
• Coated metal pipe, pipe with internal corrosion, pipe with internal coating (bitumen, Teflon, cement or rubber), or other pipe through which ultrasonic waves have difficulty penetrating.

Range and Accuracy

The FSS offers a measurement range from 0 to ±0.3...±10 m/s with exceptional accuracy of ±1.0% of velocity (for flow velocities ≥2 m/s).

Operating temperature and response time

The sensor operates over a wide temperature range:

• Converter: -20°C to +55°C
• Sensor: -20°C to +60°C...80°C (sensor-dependent)

With a rapid response time of 0.2 seconds in high-speed mode, the FSS offers optimum responsiveness in dynamic conditions.

Outings and Communication

The FSS offers a variety of outings for easy integration:

• Analog output: 4-20 mA DC (max. load: 600Ω)
• Contact output: Open collector, 2 points (total, alarm, etc.)
• Pulse output: Total - 1 Imp./day to 100 Imp./sec. (open collector)
• Serial communication: RS-485 (MODBUS) (optional)

Display and power supply

Featuring a 2-line, 16-digit backlit LCD display, the FSS offers a user-friendly interface with a 4-key keypad. Powered by 100-240 V AC, 50/60 Hz, or 20-30 V DC, it provides a stable power supply.

Converter box and mounting

The ABS resin converter housing provides IP65 protection, withstanding harsh industrial environments. It can be wall- or tube-mounted, offering installation flexibility.

Compact dimensions

The converter features compact dimensions of H140 x L130 x D70 mm, optimizing installation space.