low-temperature-online-ph-sensor
ph-electrode-freezing-brine-application
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low-temperature-online-ph-sensor
ph-electrode-freezing-brine-application
ph-probe-technical-dimensions-pg13.5

Low-Temp LT3900L Online pH Sensor for Freezing Brine

Overcome sub-zero challenges with our LT3900L online pH sensor, delivering reliable -25°C measurement for industrial freezing brine.

● Exceptional Sub-Zero Performance: By utilizing a customized low-temperature PCG polymer gel reference electrolyte, this sensor maintains high measurement precision and rapid response times (under 10 seconds) in extreme sub-zero environments down to -25°C.
● Robust Chemical Resistance & Stability: Engineered with a double liquid junction design, it delivers superior anti-pollution capabilities and does not chemically react with industrial solvents or strong acid-base media. This ensures excellent long-term time and temperature drift performance.
● Industrial Durability & Waterproofing: The electrode features a highly sturdy, acid-alkali resistant (HA) sensitive membrane that easily withstands mechanical shock. It is also fully protected by an IP68 waterproof rating for safe, continuous operation in demanding applications.
● Extensive Customization Options: To perfectly match specific complex field requirements, users can fully customize the insertion depth (from 120mm up to 425mm) and extend the cable length up to 60 meters with various connection formats (such as S8, VP8, and K8S). Furthermore, the standard single-point porous ceramic core can be upgraded to a double or triple-point structure, or customized into an annular Teflon salt bridge.

Low-Temp LT3900L pH Sensor Features Overview

As a leading B2B supplier, we provide the Low Temp LT3900L Online pH Sensor for Freezing Brine to ensure reliable measurements in extreme sub-zero environments. Powered by a customized low-temperature PCG polymer gel and a robust double liquid junction, this IP68-rated electrode prevents freezing and pollution down to -25°C. It delivers fast, precise monitoring for antifreeze and complex chemical processing, solving the severe drift issues common in standard probes. Featuring customizable 120-425mm insertion depths and standard PG13.5 threads, it is the ultimate procurement solution for chemical plants and wholesale distributors seeking durable winterized analyzers.

Low-Temperature pH Sensor Technical Data Sheet

Measuring range: 0-14pH
Temperature range: -25~+100°C
Pressure Rating: 0-3 Bar, 6 Bar MAX
Temp. compensation type: NTC 2.252K / 5K /10K/22K/30K/ PT100/ PT1000 (optionaI)
Slope: 95%
Membrane resistance: <250MQ
Zero potential: <±10 mV
Response time: <10 s
Salt Bridge Type: Porous Ceramic Core
Reference electrolyte: PCG Polymer Gel (Low Temperature Resistant Custom Type)
Reference type: dual-salt bridge reference
Installation thread: PG13.5
Housing material: Glass
Insertion depth: 120/150/225/325/425 mm etc customizable
PH sensitive membrane: Acid & Alkali Resistant Sensitive Membrane (HA)
Cable connection: S8/S8M/S7/VP8/K8S/K2, etc customizable

Low-Temperature pH Electrode Applications

Driven by its customized low-temperature PCG polymer gel and robust double liquid junction, the LT3900L is specifically engineered to thrive in freezing environments where standard sensors suffer from severe drift or complete failure. It provides unparalleled sub-zero stability and solves critical B2B measurement challenges across these specialized applications:

Specialized Application Fields:
● Freezing Brine Systems: Standard electrodes freeze or slow down significantly in sub-zero brine. The LT3900L maintains rapid (<10s) response times and high precision down to -25°C, ensuring safe and continuous monitoring in industrial refrigeration and cold storage facilities.
● Antifreeze & Coolant Manufacturing: It provides stable, continuous pH monitoring during the production and quality control of automotive and industrial antifreeze solutions, effortlessly handling the harsh chemical mixtures without structural degradation.
● Winterized Environmental Monitoring: Perfect for monitoring frozen surface waters and cold-climate reservoirs, its IP68 waterproof rating and exceptional time/temperature drift performance guarantee reliable environmental data during harsh winters.
● Cold Chemical Processing: Many complex chemical reactions require strictly controlled sub-zero environments. The LT3900L’s highly durable, acid-alkali resistant (HA) membrane resists strong solvents and chemical attacks, preventing reference poisoning during these delicate cold-state reactions.
● Specialized Laboratory Research: The sensor bridges the gap between rugged industrial durability and laboratory-grade precision, making it an ideal choice for research facilities conducting advanced, sub-zero chemical analysis or low-temperature biological studies.

Extra Information

Sub-Zero Online pH Sensor Key Features
The LT3900L is engineered with advanced materials to ensure maximum durability and precision in harsh, freezing industrial environments.
● Superb Low-Temperature Resistance: Designed to operate flawlessly and maintain rapid response times in extreme cold environments down to -25°C.
● Double Liquid Junction Design: Features a highly effective dual-junction structure that provides exceptional anti-pollution capabilities, preventing reference poisoning in complex media.
● IP68 Waterproof Rating: Fully submersible and fully protected against water and dust ingress, ensuring safe and continuous online monitoring.
● High Chemical Inertness: Built to resist harsh industrial conditions, ensuring it does not chemically react with strong solvents, acids, or bases.
● Minimal Drift Performance: Delivers outstanding long-term stability with excellent resistance to both time-drift and temperature-drift.
● Robust Sensitive Membrane: Equipped with a highly sturdy, impact-resistant glass membrane that easily withstands mechanical shocks during installation and heavy-duty operation.

LT3900L Low-Temp pH Electrode Customization Capabilities
To meet the diverse demands of different B2B industrial systems, the LT3900L offers highly flexible configuration options:
● Customizable Insertion Depth: The electrode’s insertion depth can be precisely tailored to match your specific pipeline, reactor, or tank dimensions (ranging from 120mm up to 425mm and beyond).
● Upgradable Junctions & Salt Bridges: The standard single-point porous ceramic core can be upgraded to a double-point or triple-point structure. For specialized chemical applications, it can also be customized into a circular PTFE (Teflon) salt bridge.
● Versatile Cable Connectors: We support customization for a wide variety of industrial cable connection formats (including S8, S8M, S7, VP8, K8S, K2, etc.) to integrate seamlessly with your existing transmitters.
● Extended Cable Lengths: To accommodate deep tanks or remote monitoring setups, the transmission cable can be extended up to a maximum of 60 meters without signal degradation.

Request Quotes for LT3900L Sub-Zero pH Sensors

Ensure stable -25°C measurements and prevent freezing. Submit an inquiry form today for custom solutions and wholesale pricing on our LT3900L sensors!

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