Overview
The Siemens Milltronics ST-H ultrasonic level transducer is an industrial-grade continuous level measurement sensor designed for chemical storage tanks, liquid storage vessels, and process applications. It measures liquid level in chemical storage and liquid tanks through proven ultrasonic ranging technology, making it reliable for demanding applications where precision and durability matter.
Key Features
- Mountable on 2″ standpipe for narrow design and easy installation
- Integral temperature sensor compensates for sound velocity variations due to air temperature changes
- 12° beam angle for focused measurement coverage
- Works with Siemens-Milltronics certified controllers and ultrasonic level monitoring systems
- Emits acoustic pulses in a narrow beam from the transducer face; the controller measures time between pulse emission and echo reflection to calculate distance to material
Technical Specifications
- Measurement Range: 1–33 feet (0.3 to 10 meters)
- Operating Frequency: 44 kHz
- Beam Angle: 12°
- Operating Temperature (ATEX): 140°F (60°C)
- Operating Temperature (CSA/FM): 163°F (73°C)
- Maximum Cable Length: 365 m (1200 ft) from transceiver
- Weight: 1.4 kg (3 lbs)
- Process Connection: 2″ NPT (Taper), R 2″ (BSPT), or G 2″ (BSPP)
- Housing Material: PVDF or ETFE base and lid (epoxy fitted joint)
- Operating Environment: Indoor/outdoor
- Certifications: ATEX and CSA/FM approved models available
Typical Applications
The ST-H transducer is ideal for:
- Chemical storage tank level monitoring
- Liquid inventory management in industrial facilities
- Harsh and corrosive process environments
- Standpipe-mounted installations requiring compact footprint
- Systems requiring continuous level feedback with integral temperature compensation
Compatibility & Replacements
Compatible With
- Siemens Milltronics Hydroranger 200 Ultrasonic Level Controller and other certified Siemens-Milltronics ultrasonic controllers
- Echomax ultrasonic level monitoring systems
- Standard 2″ standpipe mounting systems
- Industrial process automation control networks requiring continuous level input
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering for existing system retrofits or upgrades.
Works With
- Siemens-Milltronics ultrasonic level controllers and display units
- Analog output systems (4–20 mA signal conditioning)
- SIMATIC PDM programming software
- Industrial process automation and SCADA systems
- Standpipe-based level measurement installations
