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ST-H Transducer Ultrasonic Level Transducer

Brand: Siemens AG
Does not ship to United States
ST-H transducers use ultrasonic technology to measure level in chemical storage and liquid tanks.

The narrow design of the ST-H allows the transducer to be mounted on a 2" (50.8 mm) standpipe.

When mounted correctly, it is completely protected from the process and can even be used in harsh, corrosive environments.

The level transceiver measures the propagation time between pulse emission and reception of the echo to calculate the distance from the transducer to the material.

Variations in sound velocity due to changes in temperature within the permissible range are automatically compensated by the integral temperature sensor.
Features
  • Can Be Mounted On A Narrow Standpipe 
  • Immune To Corrosive And Harsh Environments 
  • Integral Temperature Sensor
show more
ST-H transducers use ultrasonic technology to measure level in chemical storage and liquid tanks.

The narrow design of the ST-H allows the transducer to be mounted on a 2" (50.8 mm) standpipe.

When mounted correctly, it is completely protected from the process and can even be used in harsh, corrosive environments.

The level transceiver measures the propagation time between pulse emission and reception of the echo to calculate the distance from the transducer to the material.

Variations in sound velocity due to changes in temperature within the permissible range are automatically compensated by the integral temperature sensor.
Features
  • Can Be Mounted On A Narrow Standpipe 
  • Immune To Corrosive And Harsh Environments 
  • Integral Temperature Sensor

Specifications

Brand

Measuring Range

  • 0.3... 10 m (1... 33 ft)

Frequency

  • 44 kHz

Beam Angle

  • 12°

Temperature Compensation

  • Compensated by integral temperature sensor

Pressure

  • Normal Atmospheric Pressure

Ambient Temperature

  • -20° to +60° C (-5... +140° F) (ATEX approved model)
  • -40° to +73° C (-40° ...+163° F) (CSA/FM approved model)

Storage Temperature

  • -20° to +60° C (-5° to +140° F)

Weight

  • 1.4 kg (3 lb)

Material (Enclosure)

  • Base and lid made of ETFE
  • PVDF (epoxy fitted joint)

Process Connection

  • 2” NPT [(Taper), ANSI/ASME B1.20.1], R 2” [(BSPT), EN 10226]
  • G 2” [(BSPP), EN ISO 228-1]

Degree of Protection

  • IP68

Cable Connection

  • 2-core shielded/twisted
  • 0.519 mm² (20 AWG)
  • PVC sheath

Cable (Maximum Length)

  • 365 m (1200 ft) with RG 62 A/U coaxial cable

Flange Adapter

  • 3” Universal (fits DN 65, PN 10 and 3” ASME )

Certificates & Approvals

  • CE, CSA Class I, II, III, Div. 1, Groups A, B, C, D, E, F, G T3 (ETFE only)
  • FM Class I, II, Div. 1, Groups C, D, E, F, G T4A, ATEX II 2G
  • INMETRO Ex mb IIC T5 Gb, RCM, KCC

Typical Applications

  • Chemical Storage
  • Liquid Storage