SLDW1110 Series Ion-Selective Electrode (ISE) Ammonia Nitrogen Analyzer"

Solidat Applied Technologies Ltd. is one of the leading manufacturers and suppliers of sldw1110 series ion-selective electrode (ise) ammonia nitrogen analyzer" in China, also supports customized service. Please feel free to buy high quality products in stock here and get quotation from our factory. Good service and reasonable price are available.

 

Professional Water Quality Monitoring Solution for Industrial & Environmental Applications

Product Introduction

Solidat Applied Technologies Ltd. is one of the leading manufacturers and suppliers of SLDW1110 series ion-selective electrode (ISE) ammonia nitrogen analyzer in China, also supports customized service. Please feel free to buy high quality products in stock here and get quotation from our factory. Good service and reasonable price are available.

Product Overview

The SLDW1110 Series Ammonia Nitrogen Analyzer is a cutting-edge water quality monitoring device designed to accurately measure ammonia nitrogen (NH₄⁺-N) concentration in aqueous environments. Leveraging the ion-selective electrode (ISE) technology, it integrates multi-sensor synergy, rapid response, and eco-friendly operation-addressing the pain points of traditional colorimetric methods (e.g., Nessler's method, salicylate method) such as slow speed and hazardous waste generation. Ideal for industrial wastewater treatment, municipal sewage plants, surface water monitoring, and drinking water sources, it ensures real-time, reliable data to support compliance and environmental protection.

Working Principle

The core detection technology of the SLDW1110 analyzer is the ion-selective electrode (ISE) potentiometric method, an advanced electrochemical sensing principle based on the Nernst equation. The equipment is equipped with high-specific ion selective membranes, which can selectively identify and capture target ions in water samples without interference from most miscellaneous ions. When the target ions in the water sample exchange and balance with the ions on the electrode membrane surface, a stable membrane potential difference is formed on both sides of the selective membrane. This potential value has a strict logarithmic linear relationship with the activity (concentration) of the target ions in the solution, and the instrument converts the detected potential signal into accurate ion concentration data through internal algorithm calculation.

The instrument adopts a three-electrode synergistic detection structure, including ammonium ion selective electrode, pH reference electrode and temperature compensation electrode. The pH electrode provides accurate reference potential to eliminate the interference of water pH fluctuation on ion detection and improve measurement stability; the temperature electrode realizes real-time temperature sensing and automatic correction of ion potential deviation, effectively solving the temperature drift problem of traditional detection equipment. The whole testing process does not require chemical reagents and color reaction, realizing rapid and pollution-free detection.

Compared with traditional Nessler's colorimetric and salicylate method analyzers, the SLDW1110 offers two critical advantages: faster measurement speed (no time-consuming color reactions) and zero waste liquid pollution-making it far more suitable for real-time water environment monitoring and early warning.

Measurable Media & Target Ions

This analyzer supports multi-ion synchronous detection, covering conventional water quality monitoring ions widely used in environmental protection and industrial water treatment scenarios. The measurable media and core detection ions include:

Ammonia (NH₄⁺-N): Core detection parameter, suitable for all water bodies requiring ammonia nitrogen monitoring such as sewage, surface water and drinking water

Nitrate (NO₃⁻): Supports nitrate ion concentration detection, applicable to industrial wastewater, agricultural irrigation water and eutrophic water body monitoring

Chloride (Cl⁻): Realizes chloride ion precision detection, widely used in industrial circulating water, domestic sewage and surface water quality assessment

Technical Specifications

Category	Specifications
Measurement Performance
Measured Parameters	NH₄⁺-N (Ammonia Nitrogen), Nitrate, Chloride, pH, Temperature
Range	- NH₄⁺-N: 0.1 ~ 1000 mg/L- Nitrate: 0.5 ~ 500 mg/L- Chloride: 1 ~ 1000 mg/L- pH: 0 ~ 14- Temperature: 0 ~ 50℃
Resolution	- NH₄⁺-N: 0.1 mg/L- Nitrate: 0.1 mg/L- Chloride: 0.1 mg/L- pH: 0.01- Temperature: 0.1℃
Accuracy	- NH₄⁺-N: <±10% or ±0.2 mg/L (whichever is larger)- Nitrate: <±8% FS- Chloride: <±8% FS- pH: ±0.1- Temperature: ±0.5℃
Repeatability	- NH₄⁺-N: <±2%- Nitrate: <±2%- Chloride: <±2%- pH: ±0.1
Response Time	3 minutes to reach 90% of measured value; 5 minutes to reach stable full-value reading
Display	LCD screen (shows date, time, measured values, historical trend lines)
Data Storage	10-year historical data storage, power-off data protection
Power Supply
AC Power	85 ~ 265VAC, 50/60Hz
DC Power	24VDC ±10%
Physical Specifications
Sensor Dimension	Φ58 × 341 mm
Material	- Transmitter: ABS+PC- Sensor: 316L Stainless Steel + POM
Installation	R 5/4 inch male cone thread
Environmental Performance
Protection Rating	- Transmitter: IP65- Sensor: IP68
Transmitter Temp. Range	-20 ~ 60℃
Water Sample Temp. Range	0 ~ 40℃ (non-freezing)
Output & Interface
Analog Output	1 isolated 4~20mA current output, max load 750Ω, optional fault current
Relay Output	3 programmable relays (alarm/timing function), capacity 2A, 250VAC
Digital Interface	MODBUS RS485

Frequently Asked Questions (FAQ)

Q1: What are the core advantages of ISE technology compared with traditional colorimetric detection methods?

Traditional colorimetric methods such as Nessler's method and salicylate method require manual reagent preparation, color reaction and standing waiting, which have long detection cycles, complex operation and generate a large amount of chemical waste liquid, causing secondary pollution. The SLDW1110 adopts ISE electrochemical detection principle, no chemical reagents are required for the whole process, realizing zero waste liquid discharge. It features fast detection speed, simple maintenance, and supports 24-hour uninterrupted online real-time monitoring, which is more suitable for long-term environmental monitoring and industrial online detection scenarios.

Q2: Can this analyzer detect multiple ions simultaneously, and what are the applicable detection media?

Yes, the SLDW1110 supports synchronous real-time detection of five indicators including ammonia nitrogen, nitrate, chloride, pH and water temperature. It covers three core detection media ions: Ammonia, Nitrate and Chloride. The equipment is widely applicable to municipal sewage, industrial wastewater, surface water, drinking water source water, agricultural water and other water quality monitoring scenarios, meeting the multi-index detection needs of environmental protection acceptance and industrial water treatment.

Q3: How to ensure the detection accuracy of the analyzer in complex water quality environments?

The instrument adopts multi-sensor collaborative correction technology to ensure detection accuracy in complex water bodies. The built-in pH reference electrode eliminates the interference of water pH fluctuation on ion potential detection, and the temperature electrode realizes real-time temperature compensation to avoid data drift caused by temperature changes. Meanwhile, the high-selective ion membrane effectively resists the interference of miscellaneous ions in sewage. The repeatability of ammonia nitrogen detection is less than ±2%, and the overall accuracy meets national environmental protection detection standards, supporting long-term stable operation in high-salinity and complex sewage environments.

Q4: What is the service life of the sensor and how to maintain it daily?

The sensor is made of 316L stainless steel and POM high-strength corrosion-resistant materials, with IP68 waterproof grade, and the normal service life of the electrode is 18-24 months under standard operating conditions. Daily maintenance is simple: regularly clean the sensor surface of dirt and attachments, avoid long-term dry storage of the electrode, perform regular calibration every 1-2 months according to the water quality environment, and avoid impact and high-temperature baking. No frequent replacement of consumables is required, greatly reducing later operation and maintenance costs.

Q5: Does the analyzer support data transmission and remote monitoring? Is data storage reliable?

The SLDW1110 is equipped with standard MODBUS RS485 digital interface and 4-20mA analog output, which can be seamlessly connected with PLC, industrial control system and environmental protection monitoring platform to realize remote data transmission and real-time monitoring. It has a built-in large-capacity storage module, supporting 10-year historical data storage, with perfect power-off data protection function. The data will not be lost after power failure, and supports historical data query and trend line viewing, which is convenient for data archiving, analysis and environmental compliance filing.

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Hot Tags: sldw1110 series ion-selective electrode (ise) ammonia nitrogen analyzer", China sldw1110 series ion-selective electrode (ise) ammonia nitrogen analyzer" manufacturers, suppliers, factory, Portable Multiparameter Water Quality Meter, Analysis System, Water Analysis System