EchoLogger ETF 400S Acid-Resistant Echo Sounder | PTFE Flow-Through Sensor

IS-EL-ETF-400S

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Overview

The EchoLogger ETF 400S is a professional-grade single-frequency echo sounder engineered for depth measurement in chemically aggressive environments. All externally exposed components — including the transducer body and cable — are constructed from PTFE (Teflon), delivering full compatibility with low-pH conditions down to approximately pH 2 and resistance to aggressive acids under normal operating temperatures.

Designed as a flow-through sensor, the ETF 400S integrates directly into pipelines, tanks, and industrial water systems where standard echo sounders cannot operate — providing reliable, continuous depth and level data in environments that would degrade conventional sensor materials.

Full PTFE Construction. pH 2 Rated. Zero Compromise.
Every externally exposed component of the ETF 400S — transducer body, housing, and cable — is manufactured from PTFE (Teflon), the gold standard for chemical resistance in industrial sensing. Rated for continuous operation in environments down to approximately pH 2, the ETF 400S withstands aggressive acids at normal temperatures without material degradation, seal failure, or signal loss. Where conventional echo sounders fail, the ETF 400S delivers.

Flow-Through Integration. Pipeline-Ready.

The ETF 400S is purpose-built for direct integration into pipelines, tanks, and closed industrial fluid systems. Its flow-through design enables continuous, non-intrusive depth and level monitoring without requiring open-surface access — making it the sensor of choice for process environments where conventional deployment is not possible.

Industrial-Grade Endurance. Chemically Inert.

Built for sustained deployment in process environments where chemical exposure, moisture, and contamination are constant factors, the ETF 400S maintains measurement integrity across extended operational cycles. PTFE's inherent inertness ensures no leaching, no corrosion, and no signal degradation — even in the most demanding industrial fluid monitoring applications.

Single-Frequency Precision. Chemically Complex Media.

The ETF 400S delivers reliable acoustic depth measurement in liquid media where chemical composition, density, and contamination would compromise standard sensors. Its optimized single-frequency transducer provides consistent bottom detection across the challenging acoustic conditions common in industrial tanks, acid baths, and process fluid systems.

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PTFE-Encased. Acid-Resistant. Flow-Through Bathymetry. The EchoLogger ETF 400S.

The EchoLogger ETF 400S is a professional-grade single-frequency echo sounder engineered for depth measurement in chemically aggressive environments. All externally exposed components — including the transducer body and cable — are constructed from PTFE (Teflon), delivering full compatibility with low-pH conditions down to approximately pH 2 and resistance to aggressive acids under normal operating temperatures. Designed as a flow-through sensor, the ETF 400S integrates directly into pipelines, tanks, and industrial water systems where standard echo sounders cannot operate, providing reliable, continuous depth and level data in environments that would degrade conventional sensor materials.

Key Specifications

  • Full PTFE (Teflon) Construction — All externally exposed parts, including the cable, are PTFE-encased for complete chemical resistance in corrosive liquid environments
  • Low-pH Compatibility — Rated for operation in conditions down to approximately pH 2, including aggressive acids under normal temperature
  • Flow-Through Design — Engineered for direct integration into pipelines, tanks, and industrial fluid systems for continuous depth and level monitoring
  • Single-Frequency Operation — Optimized acoustic frequency for reliable bottom detection in chemically complex liquid media
  • Industrial-Grade Durability — Built for sustained deployment in process environments where chemical exposure, moisture, and contamination are constant factors

Full Specifications

Model EchoLogger ETF 400S
Type Single-frequency echo sounder
Design Flow-through
Wetted Materials PTFE (Teflon) — all externally exposed parts including cable
Chemical Compatibility Low-pH environments (~pH 2); aggressive acids at normal temperature
Vendor SPH Engineering / EchoLogger
SKU IS-EL-ETF-400S

In the Box

  • EchoLogger ETF 400S flow-through echo sounder × 1
  • PTFE-jacketed cable × 1

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