Home Online Sensors & Controllers NH₄-N Sensor & Controller NH4-N sensor NH351

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NH4-N sensor NH351

Utilizing ion-selective electrode technology, this integrated sensor offers reagent-free, rapid ammonia nitrogen monitoring for wastewater treatment and field water quality testing.

Measuring Range： 0~1000 mg/L
Delivery time： 2-5 weeks
MOQ： 1
Price： Contact Us

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Anti-twist cap
PG13.5

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Overview

Information

Measuring range：0~1000 mg/L
Process temperature: 4 Bar (0 to 60 °C)
Process pressure： Max. 4 bar (58 psi)

Output/Communication

Reference system： Ag/AgCl, double salt bridge, KCL gel
Sensor element： Platinum plate
Junction： Large-area annular porous PTFE diaphragm
Shaft material： ABS (Acrylonitrile Butadiene Styrene)

Tail lead

One-piece or split

Features

Clever simplicity

One controller for all parameters and applications, intuitive user interface, automatic sensor recognition, hot plug & play with pre-calibrated Memosens sensors.
Highest flexibility

Universal modules for all parameters minimize spare part stock and allow for easy 1-click extension to up to 8 channels at any time.
Seamless system integration

Unique portfolio of communication standards suits every distributed control system (DCS).

Application

Perfectly suited for conductivity measurement in industrial processes with medium to high measuring ranges, such as chemical processing and wastewater treatment. The 4-electrode graphite sensor performs reliably and accurately even in complex electrolytes. ASC300-F features advanced 4-electrode technology, effectively eliminating polarization effects and cable resistance. It facilitates precise process control and provides the perfect basis for high-conductivity monitoring.

Applicable Scenarios

Food & Beverages
Water & Wastewater
Life Sciences
Chemicals
Power & Energy
Marine

Applicable Interfaces And Protocols

0/4...20 mA
Modbus RS485/RTU

High-performance resistivity transmitter for ultra-pure water applications using 2-electrode or inductive sensor technology.

Precision measurement through stable cell constants ensures accurate conductivity analysis in high-fouling environments. The ASC300-F utilizes a 0.32cm-1 graphite electrode to maintain long-term signal integrity without the need for frequent recalibration.

Seamless integration with AEC2 controllers provides a complete digital monitoring solution via RS485 MODBUS RTU communication. With integrated PT1000 temperature compensation, the system delivers real-time, temperature-corrected data for stable process automation.

Installation Guide

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Haec et huius modi quaedam innumerabilia ultrix facinorum impiorum bonorumque praemiatrix aliquotiens operatur

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English version-02/2025

Haec et huius modi quaedam innumerabilia ultrix facinorum impiorum bonorumque praemiatrix aliquotiens operatur

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Measuring principle	Potentiometric
Application	Long-term monitoring and limit control in processes with stable process conditions Water and wastewater treatment
Characteristic	Digital pH electrode for standard applications in process and environmental technology with dirt-repellent PTFE ring junction and built-in temperature sensor
Measuring principle	Gel compact electrode with PTFE ring junction
Design	All shaft lengths with temperature sensor Advanced gel technology
Material	Sensor shaft: Glass to suit process pH membrane glass: Type A, B, F Metal lead: Ag/AgCl Aperture: Ring-shaped PTFE junction O-ring: FKM Process coupling: PPS fibre-glass reinforced Nameplate: ceramic metal oxide
Dimension	Diameter: 12 mm (0.47 inch) Shaft length: 120, 225, 360 and 425 mm (4.72, 8.86, 14.17 and 16.73 inch)
Temperature sensor	NTC 30K
Ex certification	IP68
Ingress protection	IP68
Input	1 to 4x Memosens digital input
Output communication	2 to 8x 0/4 to 20 mA current outputs, alarmrelay

NH4-N sensor NH351