AION11 Digital Ion-Selective Sensor
The AION11 Digital Ion-Selective Sensor is designed for continuous measurement of a selected ion and temperature in water-quality applications.
Available configurations include NH₄⁺, NO₃⁻, K⁺, Cl⁻ and F⁻, with Modbus RTU over RS485 for connection to controllers, PLCs and monitoring systems.
Key Specifications
- Target ions: NH₄⁺, NO₃⁻, K⁺, Cl⁻, F⁻
- Integrated temperature measurement
- Slope: 57 ± 2 mV/pIon
- Response time: <30 s
- Pressure: ≤0.4 MPa
- Temperature: 0~45°C
Product Description
AION11 uses ion-selective electrode technology to continuously measure a selected dissolved ion in an aqueous sample.
Each version uses a sensing membrane designed for a specific target ion while sharing the same compact mechanical platform, integrated reference system, temperature measurement and Modbus RTU communication architecture.
Available Measurement Configurations
|
Model |
Target Ion |
Measurement Range |
Slope Magnitude |
Sensing Membrane |
|---|---|---|---|---|
|
AION11-NH4 |
NH₄⁺ |
0.1–2000 mg/L |
57 ± 2 mV/pNH₄ |
PVC membrane |
|
AION11-NO3 |
NO₃⁻ |
0.5–2000 mg/L |
57 ± 2 mV/pNO₃ |
PVC membrane |
|
AION11-K |
K⁺ |
0.1–3000 mg/L |
57 ± 2 mV/pK |
PVC membrane |
|
AION11-Cl |
Cl⁻ |
2.5–20000 mg/L |
57 ± 2 mV/pCl |
Single-crystal membrane |
|
AION11-F |
F⁻ |
0.1–20 mg/L |
57 ± 2 mV/pF |
Single-crystal membrane |
Response Time
|
Target Ion |
Specified Test Condition |
|---|---|
|
NH₄⁺ |
<30 s in 180 mg/L NH₄⁺ solution |
|
NO₃⁻ |
<30 s in 62 mg/L NO₃⁻ solution |
|
K⁺ |
<30 s in 39 mg/L K⁺ solution |
|
Cl⁻ |
<30 s in 350 mg/L Cl⁻ solution |
|
F⁻ |
<30 s in 19 mg/L F⁻ solution |
Signal Stability
- ±0.3 mV over 30 minutes
- ±1 mV over 24 hours
Technical Specifications
|
Parameter |
Specification |
|---|---|
|
Model |
AION11 |
|
Sensor architecture |
Single-channel |
|
Target-ion measurement |
One selected ion |
|
Temperature measurement |
Integrated |
|
Reference system |
Built-in |
|
Power supply |
12–24 VDC |
|
Overall length |
238 mm |
|
Main housing material |
PP |
|
Cable material |
PUR |
|
Protection rating |
IP68 / NEMA 6P |
|
Pressure |
≤0.4 MPa |
|
Maximum flow velocity |
≤2.5 m/s / 8.2 ft/s |
|
Measurement environment temperature |
0~45°C |
|
Calibration |
Single-point / multipoint |
|
Standard cable length |
10 m |
Key Features and Engineering Benefits
Five Ion Measurement Options
The AION11 platform is available for five common ions, allowing OEMs, system integrators and water-quality projects to use a consistent sensor platform across different monitoring points.
Built-In Reference System
The reference system is integrated into the probe body, reducing the need for an additional external reference electrode.
Compact Ø40 mm Sensor Body
Integrated Temperature Measurement
Modbus RTU over RS485
The standard digital interface allows the AION11 to communicate with compatible industrial systems such as:
- PLCs
- water-quality controllers
- SCADA systems
- data-acquisition systems
- OEM monitoring equipment
Selectable Ammonium Units
The AION11-NH4 can report ammonium concentration as:
- mg/L NH₄⁺
- mg/L NH₄-N
The reporting unit can be changed through the sensor settings.
Model Selection
AION11-NH4
For ammonium measurement. Output can be selected as mg/L NH₄⁺ or mg/L NH₄-N.
AION11-NO3
For nitrate measurement.
AION11-K
For potassium measurement.
AION11-Cl
For chloride measurement.
AION11-F
For fluoride measurement.
Typical Applications
AION11 can be used for continuous ion monitoring in applications such as:
- municipal water treatment
- wastewater treatment
- industrial process water
- environmental water monitoring
- aquaculture
- recirculating water systems
- OEM water-quality equipment
- online monitoring systems
Application suitability should be confirmed according to actual sample chemistry, target-ion concentration and operating conditions.
FAQ
AION11 is available for ammonium, nitrate, potassium, chloride and fluoride.
No. Each AION11 is configured for one target ion.
Yes. AION11-NH4 allows the user to switch between mg/L NH₄⁺ and mg/L NH₄-N.
Yes, when the PLC or gateway supports Modbus RTU over RS485 and is configured according to the sensor communication documentation.
IP68 / NEMA 6P.
The <30 s specification applies to the stated test-solution conditions. Actual field response can vary with the process sample and operating conditions.
Request a Quote
Get the Right AION11 Configuration
Not sure which ion-sensor configuration is right for your application? Tell us what you need to measure and your operating conditions. Our team will review the application and recommend the appropriate AION11 configuration.
For faster selection, please include:
- Target ion: NH₄⁺, NO₃⁻, K⁺, Cl⁻ or F⁻
- Expected concentration range
- Sample pH and temperature
- Process pressure and flow conditions
- Major chemicals or interfering ions, if known
- Installation method and required cable length
Factory Strength & Quality Assurance
ARTang supports industrial measurement projects with in-house production, strict calibration, certified quality control, and global exhibition experience.
Factory Production
In-house production and assembly for stable product quality and reliable delivery.
CNC Machining Equipment
Product Assembly
CNC Machining
Welding Process
warehouse
Technical Support Department
Certified Quality
Product certificates and quality control systems support reliable industrial measurement applications.
CE
ISO
3-A
NEPSI
Exhibition Experience
ARTang meets customers and distributors at industry exhibitions to better understand project needs and market requirements.
