Tival Sensors TS-UNS Ultrasonic Level Sensor

Tival Sensors TS-UNS Ultrasonic Level Sensor, The ultrasonic level sensor TS-UNS is used for the continuous level measurement of liquids or solids, such as liquids in tanks or bulk solids in open or closed storage facilities. The measuring method works without contact to the measured media and is therefore almost maintenance-free and independent of the product properties.

The TS-UNS emits short ultrasonic pulses, which are reflected by the surface of the medium. The reflections are detected by the sound converter inside the sensor head. Since the signal transit time is proportional to the fill level of the container, the fill level is calculated using the runtime method.

Product description Ultrasonic level sensor TS-UNS

The ultrasonic level sensor TS-UNS is used for the continuous level measurement of liquids or solids, such as liquids in tanks or bulk solids in open or closed storage facilities. The measuring method works without contact to the measured media and is therefore almost maintenance-free and independent of the product properties. 

The TS-UNS emits short ultrasonic pulses, which are reflected by the surface of the medium. The reflections are detected by the sound converter inside the sensor head. Since the signal transit time is proportional to the fill level of the container, the fill level is calculated using the runtime method.

Five sensor versions with measuring ranges starting at 0.1 … 1 m up to 0.5 … 20 m are available. The process connection of the IP 65 PVDF housing results from the selected measuring range. The acquired measured value can optionally be output as 4 … 20 mA or 0 … 10 V DC analog output or as a RS-485 Modbus RTU signal. 

The ultrasonic level sensor TS-US can be configured quickly and easily via two buttons directly on the sensor. Alternatively, sensor programming by means of a magnetic pen, instead of buttons, is available to eliminate unauthorized programming of the sensor. Both sensor versions also display the sensor status with two LEDs directly on the sensor. The electrical connection is available with solenoid valve plug (MVS/A), M12x1 circular connectors or a cable outlet.

Optionally, the ultrasonic level sensor TS-UNS with 4 … 20 mA analog output is also available as an intrinsically safe ATEX version. The intrinsically safe Ex version of the TS-US is approved for use in potentially explosive atmospheres acc. Ex II 1 / 2G Ex ia IIB T5 Ga / Gb.

Further technical details can be found in the data sheet of the ultrasound level sensor TS-UNS.
Detailed information on installation and use of the ultrasonic level sensor TS-UNS, especially the mandatory installation conditions (tank dimensions, blind zone of the ultrasonic sensor head, foaming, etc.) are explained in the installation and operating instructions of the ultrasound level sensor TS-UNS.

The Ultrasonic level sensor TS-UNS is designed for the continuous measurement of liquids or solid materials, such as liquids in tanks or bulk material in open or closed storage facilities. The measurement method is unaffected by the product properties, works contact-free and is almost maintenance-free.

The TS-UNS sensor transmits ultrasonic pulses which will be reflected by the surface of the filling material. The reflections are received by the electro-acoustic transducer of the sensor. The signal run time is proportional to the filling level. Therefore the TS-UNS sensor can calculate the filling level by using the transit time method

Tival Sensors TS-UNS Ultrasonic Level Sensor Specification :

  • Ultrasonic level sensor for continuous level measurement
  • Measuring ranges from 0,1 … 1 m to 0,5 … 20 m
  • PVDF housing, IP 65
  • Status display via two LEDs directly on the sensor
  • Also as intrinsically safe version with ATEX-approval
Technical data
TS-UNS-*-01-…TS-UNS-*-02-…TS-UNS-*-06-…TS-UNS-*-10-…TS-UNS-*-20-…
Measuring range
(min. and max.)
0,1 … 1 m0,2 … 2 m0,2 … 6 m0,4 … 10 m0,5 … 20 m
Output signal4 … 20 mA or 0 … 10 V DC analog output, RS-485 Modbus RTU
Process connectionG 3/4″ male threadG 1″ male threadG 1 1/2″ male threadG 2 1/4″ male threadAl alloy flange
Electrical connectionaccording to choice: solenoid valve plug (MVS/A), M12x1 circular connector or cable gland with cable outlet in the desired length
Sensor configurationaccording to choice: 2 adjustment buttons +2 LED, by use of magnetic pin (MP8) +2 LED, pre-configured ex works on request
Current consumption
(0 … 10 V DC only)
12 mA12 mA12 mA12 mA12 mA
Resolution< 1 mm< 1 mm< 1 mm< 1 mm< 1 mm
Operating voltage UB
Basic version
Ex-version (4 … 20 mA only)
18 … 36 V DC
18 … 30 V DC
18 … 36 V DC
18 … 30 V DC
18 … 36 V DC
18 … 30 V DC
18 … 36 V DC
18 … 30 V DC
18 … 36 V DC
18 … 30 V DC
Limit values Ex-versionUi= 30 V DC; Ii= 132 mA; Pi= 0,99 W; Ci= 370 nF; Li= 0,9 mH
Maximum operating pressure1 bar1 bar1 bar1 bar1 bar
Total error at RT0,3 % FS (0,1 … 0,2 m)
0,2 % FS (0,2 … 1 m)
0,15 % FS0,15 % FS0,2 % FS0,2 % FS
Temperature range-30 … +70 °C-30 … +70 °C-30 … +70 °C-30 … +60 °C-30 … +60 °C
Temperature influencemax. 0,04 % / Kmax. 0,04 % / Kmax. 0,04 % / Kmax. 0,04 % / Kmax. 0,04 % / K
Housing materialPVDFPVDFPVDFPVDFPVDF
Protection classIP65IP65IP65IP65IP65
Angle of radiation (-3 dB)10°10°14°10°12°
Measurement time0,5 s0,5 s1,2 s1,2 s5,0 s
Averaging off4 measured values (other number of measured values for averaging on request)
Weight200 g200 g250 g650 g2800 g

Mounting recommendation

The front of the TS-UNS ultrasonic level meter must run parallel to the measured level.
Objects inside the tank (e. g. mixers, ladders, etc.) or foam formation may have negative
effects on the measurement results. m = blind zone of ultrasonic sensors (min. necessary measuring distance) a = neck height b = neck width c = total measuring range of sensor
(see table below) d = min. necessary distance from the tank wall

Reference: tival-sensors.com

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