Startseite Produkt Ionenselektive Elektrode

Ionenselektive Elektrode

The Ion-Selective Electrode (ISE) Online Sensor is a probe-type intelligent sensor. It features compensation for temperature, pH, and interfering ions, and adopts an RS485 interface with standard Modbus protocol. The sensor enables in-situ measurement without the need for reagents or sample pre-treatment, offering low maintenance and high operational efficiency.

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Produktübersicht

The measurement principle of ion-selective electrodes (ISEs) is based on the relationship between the activity and concentration of ions in an electrolyte solution. An ISE typically consists of two electrodes: a working electrode and a reference electrode. The working electrode selectively responds to the target ion, while the reference electrode provides a stable potential as a reference.

The working electrode is usually coated with a selective membrane that exhibits a specific response to a particular ion. When the target ion interacts with the selective membrane, a change in electric potential is generated. By measuring this potential change, the concentration of the ion can be determined.

where:

Z — ionic charge number;
“±” — “+” for cations and “–” for anions;
a — activity of the measured ion.

Ionenselektive Elektrode Technische Daten

Arbeitsweise	Ion selection electrode method
Measurement factors	NH4N			Na+		NO3N	F-	Cl-
Modell des Produkts	ISE NH4N-100	ISE NH4N-200	ISE NH4N-210	ISE Na-200	ISE Na-210	ISE NO3N-200	ISE F-200	ISE Cl-200
Measurement factors	Ammonia nitrogen, temperature	Ammonia nitrogen, pH, temperature	Ammonia nitrogen, pH, K+, temperature	Na+, pH, temperature	Na+, pH, ammonia nitrogen, temperature	nitrate, Cl-, temperature	F-, pH, and temperature	Cl-, pH, temperature
Measurement range（mg/L）	0.1~1000	0.1~1000	0.1~1000	0.1~1000	0.1~1000	0.1~1000	0.1~10000	3~30000
	/	pH 0~14	pH 0~14	/	/	/	pH 0~14	pH 0~14
	Temperature 0~50 °C	Temperature0~50 °C	Temperature0~50 ℃	Temperature0~50 ℃	Temperature0~50 ℃	Temperature0~50 ℃	Temperature0~50 ℃	Temperature0~50 ℃
Wiederholbarkeit	≤2%、<0.1pH、≤0.3℃			≤2%、≤0.3℃
Messgenauigkeit	±5%or±0.1mg/L；Temperature < 0.3°C	±5% or ±0.1mg/L;<0.1pH； Temperature < 0.3°C		± 10% or ± 0.1mg/L; Temperature < 0.3°C				± 10% or ± 0.5mg/L temperature < 0.3°C
Compensation Scope:	/	pH 4~10	pH 4~10K+；<100mg/L	NH4N+<100mg/L	/	Cl-<1000mg/L	pH 3.5-5	/
Low concentration drift (24h)	±1%F.S
Bereichsdrift (24h)	±3%F.S
Nachweisgrenze	0,1mg/L	0,05mg/L		0,05mg/L	0,1mg/L		0,1mg/L		3mg/L
Entschließung	0.01mg/L
Schutzniveau	IP68
Kommunikationsschnittstelle	RS485, das Standard Modbus Protokoll Baudrate 9600 Adressbit Standard 50
Abmessungen:	(φ33*146)mm, cable 10 meters (can be customized)	(φ50*251)mm, cable 10 meters (customizable)	(φ60*270)mm, cable 10 meters (can be customized)	(φ60*270)mm, cable 10 meters (can be customized)	(φ50*251)mm, cable 10 meters (customizable)	(φ60*270)mm, cable 10 meters (can be customized)	(φ50*251)mm, cable 10 meters (customizable)	(φ50*251)mm, cable 10 meters (customizable)
Material	316L-Edelstahl/PVC/Titanlegierung optional
Gewicht	0.2KG	2KG	1KG	2KG	1KG	2KG	1KG	2KG
Befestigungsgewinde	Oberes Ende NPT3/4 Gewinde
Betriebsspannung	9~36V DC
MTBF	≥ 1440h/time
power consumption	0.5w
Zeitraum der Kalibrierung	1~3 months (depending on the water quality environment on site)
Arbeitsumfeld	（0~50）℃

Vielseitige Anwendungen in verschiedenen Branchen

Environmental Surface Water,
Municipal Wastewater
Aquaculture Water
Industrial Process Water

Hauptmerkmale von Ionenselektive Elektrode

Each electrode can beindependently replaced, ensuring simple operation and low maintenance requirements.
Fast response time, enabling real-time detection of ions in water.
Corrosion-resistant housingwithIP68 waterproof rating, suitable for long-term underwater operation.
RS485 communication interfacewith thestandard Modbus protocol, facilitating easy system integration.

Warum Ionenselektive Elektrode Stellt sich heraus

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