Flow sensors
Rittmeyer offers precision flow sensors for closed pipes as well as open channels and partly filled pressure tunnels. The flow in closed pipes can be measured both with sensors mounted to the inside or outside of the pipe as well as non-invasive sensors installed on a mounting frame on the outside of the pipe.

Externally mounted (non-invasive) sensors for closed pipes
MFATGx
The clamp-on sensor installation on the outer pipe wall allows for non-invasive, cost-effective, and low maintenance flow measurements using ultrasound technology. For temporary measurements, the mounting frame can remain at the measuring point for regular flow checks.
- Easy placement: Magnetic attachment of the sensor
- Alternative adhesive attachment or tightening strap
- Can also be used for temporary measurements
- Installation possible in partially exposed pipes as well
- For applications in filled pipes with a 0.08 – 3 m diameter.

Firmly mounted sensors for closed pipes
MFBTAx
RISONIC modular type A pipe sensor for applications in filled or partially filled pipes with a 0.75 – 35 m diameter.
- Mounted on the inside
- Exchangeable under pressure
- Minimal protrusion
- Oscillating frequency: 1 MHz / 500 kHz
- Range up to 80 bar (higher pressures on request

MFBTBx
RISONIC modular type B pipe sensor for applications in open channels and in filled or partially filled pipes with a 0.75 – 35 m diameter.
- Installed inside the pipe or in channel
- Hydrodynamic profile
- Oscillating frequency: 1 MHz / 500 kHz
- Range up to 80 bar (higher pressures on request)

MFBTCx
RISONIC modular type C pipe sensor for applications in filled or partially filled pipes with a 0.20 – 35 m diameter.
- Installation and access on the outside
- Exchangeable under pressure
- Minimal protrusion
- Oscillating frequency: 1 MHz / 500 kHz
- Range up to 80 bar (higher pressures on request

Sensors for open channels and pressure tunnels
MFBTK1 / K2
RISONIC modular type K channel sensor for open channels with widths ranging from 0.20 - 10 m.
- Very robust
- Path angle fully adjustable
- Hydrodynamic profile
- Oscillating frequency: 1 MHz
- Range up to 10 bar