User Manual

Innovative sensors for all
requirements
Be it the flow of liquids or the flow of
air, Symaro offers everything needed
to ensure accurate flow measurements
– from flow sensors to flow switches
and velocity sensors. Since all types
of flow sensors are available with
DC 0...10 V or 4...20 mA outputs, the
products are very versatile.
Ruggedness, stability and longevity
The vortex flow sensors for liquid
media are available in glass-fiber rein-
forced plastic or rugged red brass. The
sensors contain no moving parts,
which makes them dirt-resistant and
ensures an excellent media resistance.
As a result, they ensure longevity and
excellent long-term stability.
The flow switches are made of glass-
fiber reinforced plastic featuring a
Reed contact, which is actuated by a
magnetic field, absolutely contact-free
and without a return spring. This leads
to stable switching points. Depending
on the model, the switches offer pres-
sure ranges up to 25 bar without using
bellows, resulting in pressure-indepen-
dent switching points. This means that
the switching point is solely depen-
dent on the volumetric flow. The
Symaro range of flow switches covers
nominal sizes from DN 10 to DN 200.
The air velocity sensor offers three
measuring ranges: 0...5, 0...10 and
0...15 m/s. Thanks to its special thin-
film sensing element, the sensor oper-
ates independently of the direction of
flow and is dirt-resistant.
Symaro flow – flexible
and efficient measurement
of flow
Highlights
• Suited for all types of flow applications –
for versatile use in liquids and air
• More flexibility thanks to DC ... V,
... mA or switching contact outputs
• Excellent resistance to media
• Longevity and long-term stability
• Dirt-resistant
• Stable, pressure-independent switching
point
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