Ultrasonic Level Meter SON60Y Series

Measuring Principle

Short ultrasonic impulses in the range of 35 to 70 kHz are emitted by the transducer to the measured product, reflected by the product surface and received again by the transducer. The pulses are spread with sound velocity. The time from emission to reception of the signals is proportional to the level in the vessel. The proven ECHOFOX signal processing analysis the reflections in the vessel based on long-standing experience and detects the level signal reliably. The adjustment of the sensors is very simple without changing the level.



< Notes>

These products are released to the Customers in the following Sales area.

(1) Sales area : Australia, New Zealand, South East Asia, India, Middle East

(2) Customers : Customers for bundled solution, major project and selected global major accounts

We can also provide Level switches : Vibration(SWING, VIB, WAVE) & Capacitance(CAP).
For more information, please contact our sales.


(Regional Head Quarters)
Yokogawa Engineering Asia Pte. Ltd.
5 Bedok South Road, Singapore 469270, Singapore
Phone: (65)-6241-9933  Fax: (65)-6241-2606
Australia Yokogawa Australia Pty. Ltd.
Tower A, 112-118 Talavera Road, Macquarie Park NSW 2113, Australia
Phone: (61)-2-8870-1100  Fax: (61)-2-8870-1111
Thailand Yokogawa (Thailand) Ltd.
799 Rama 9 Road, Bangkapi, Huaykwang, Bangkok 10310 Thailand
Phone: (66)-2-715-8600  Fax: (66)-2-715-8688
India Yokogawa India Ltd.
Plot No.96, Electronic City Complex, Hosur Road, Bangalore - 560 100, India
Phone: (91)-80-4158-6000  Fax: (91)-80-2852-0625
Middle East Yokogawa Engineering Middle East FZE- Dubai
P.O.Box 18112, Jebel Ali Free Zone, Bldg no. LIU FZS1-BH03,
Free South Zone, Dubai, UAE
Phone: (971)-4-8049100  Fax: (971)-4-8860844

* For the users in Japan, click here.




Level in liquids

Sensors with higher frequencies are used for measurement of liquids.
Independent of product properties they deliver a continuous measuring signal and are ideal for water/waste water applications and the measurement of weak acids and lyes. Sensors with respective approval are available for applications in gas-Ex areas.


Level in bulk solids

Sensors with low frequencies and bigger transducers are used for measurement in bulk solids. Typical applications are level measurement of bulk solids containers, bulk solids silos with average size dimensions and open heaps. Approved sensors are available for applications in dust-Ex areas.



Model / Application Outward Measuring Range Accuracy Process Fitting Process Temperature Process Pressure

Liquids and
bulk solids
in small
son61y Liquids:
0.25 to 5 m
Bulk solids:
0.25 to 2 m
+/- 10 mm
G½, 1½ NPT
-40 to +200
deg C
-2 to +2 bar
(-20 to +200

Liquids and
bulk solids
in small
son62y Liquids:
0.4 to 8 m
Bulk solids:
0.4 to 3.5 m
+/- 10 mm
G2, 2 NPT
-40 to +80
deg C
-0.2 to +2 bar
(-20 to +200

Liquids and
bulk solids
in all
son63y Liquids:
0.6 to 15 m
Bulk solids:
0.6 to 7 m
+/- 10 mm
Compression flange
DN 100,
mounting strap
-40 to +80
deg C
-0.2 to +1 bar
(-20 to +100


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