Flush Submersible Level / Pressure Sensor - Class 1 Div 1, Groups C and D with Approved Barrier

The AST4520 flush diaphragm submersible transmitter is the cost effective solution for level monitoring of turbulent tanks with viscous media. Approved to UL/cUL913 Class 1 Division 1 IS, Groups C and D with an approved barrier, the product ensures a safe, reliable source for level measurement. The AST4520 is offered with pressure ranges from 0-5 to 0-15 PSIG. The AST4520 steel cage front end design allows for proper flow of media while keeping the sensor at the bottom of the tank or well. With an engraved 316L housing and Kynar PVDF cable, this sensor is built to handle the toughest environments.
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CSA Approved
Datasheet
w/ Dimensions

- Engraved 316L Housing
- Protective Steel Cage Assembly
- Compatible with a Wide Range of Chemicals
- Suitable for Waste, Salt, Brackish, or Fresh Water Systems
- EMI/RFI Protection
- Reverse Polarity Protection
- Lightening and Surge Protection
- Ruggedly Designed for Harsh Waste Water Environments
- Competitively Priced for OEM Applications
- Kynar PVDF Cable
- Excellent Price to Performance Ratio
- Lift Stations for Wastewater, Stormwater and Industrial Applications
- Food Tanks
- Viscous Media Tanks
Workmanship - AST, Inc. pressure transmitters have a limited one-year warranty to the original purchaser. AST, Inc. will replace or repair, free of charge, any defective transmitter. All units returned for warranty evaluation must be thoroughly cleaned and free of process residue prior to shipment. Units that are not properly cleaned will be discarded and warranty service will be denied. This warranty does not apply to any units that have been modified; misused, neglected or installed where the application exceeds published ratings. AST4520 is not recommended for use with hydrogen. AST’s sensors are made with pride in New Jersey, USA. If in the area please feel free to stop by for a visit!
Installation/Applications - The purchaser is responsible for media compatibility, functional adequacy, and correct installation of the transmitter.
1 Accuracy includes: Non-linearity, Hysteresis and Non-repeatability
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