Ion Controller RS485
The Ion Controller RS485 is a high-precision online monitoring and control instrument designed for continuous measurement of specific ion concentrations in water. Equipped with advanced signal processing technology and digital communication capability, the Ion Controller RS485 ensures stable performance, accurate data transmission, and reliable integration into industrial automation systems.
The Ion Controller RS485 supports a wide range of ion-selective electrodes (ISE), enabling measurement of parameters such as ammonium (NH₄⁺), nitrate (NO₃⁻), fluoride (F⁻), chloride (Cl⁻),
calcium (Ca²⁺), and other target ions. With automatic temperature compensation and intelligent calibration functions, the device maintains high measurement accuracy even under varying
environmental conditions. Its fast response time and strong anti-interference capability make it suitable for complex industrial environments.
Working Principle
The controller receives digital signals from ISE ion probes, calculates ion concentration based on the Nernst equation. Built-in temperature correction ensures accurate and stable readings. It supports data remote transmission and limit interlock control, connecting seamlessly with PLC, DCS and SCADA system.
Product Features
1. Universal for multiple ISE sensors, one controller for various ion testing.
2. Standard RS485 communication, long-distance anti-interference data transmission.
3. High precision measurement with automatic temperature compensation.
4. Adjustable alarm value, support automatic dosing and drainage linkage.
5. Industrial heavy-duty design, suitable for harsh sewage environment.
6. Simple calibration and user-friendly operation, low maintenance cost.
Applicable Sensors
Ammonium sensor, Fluoride sensor, Sodium sensor, Calcium sensor, Nitrate sensor, Heavy metal ion ISE electrodes.
Technical Parameters
|
Feature |
Description |
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Measurement Range |
ION |
-2.00–16.00 pH |
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TEMP |
-30.0–130.0°C |
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Resolution |
ION |
0.01 ppm |
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|
TEMP |
0.1°C |
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Accuracy |
pH |
±0.01 ± 1 Digit |
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ORP |
±0.1% ± 1 Digit |
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TEMP |
±0.2°C ± 1 Digit |
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Temperature Compensation |
NTC22K/PT1000/PT100/manual temperature compensation modes |
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Calibration Mode |
single-point, two-point, or three-point calibration. |
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Operating Temperature |
0–50°C |
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Storage Temperature |
-10–70°C |
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Input Impedance |
> 10¹² Ω |
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Display |
LCD (240×160 or 256×128 dot matrix) |
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Current Output 1 |
Isolated 4–20 mA, max load 500 Ω |
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Current Output 2 |
Isolated 4–20 mA, max load 500 Ω |
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RS485 Interface |
MODBUS RTU protocol |
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Control |
Relay: 240 VAC 3A Max. |
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Cleaning Settings |
ON: 0–9999 sec |
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Protection Rating |
IP65 |
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Power Supply |
100–240 VAC ±10%, 50/60 Hz, 5 W |
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Installation |
Wall/Pipeline/Panel |
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Dimensions |
144 × 144 × 115 mm (H × W × D) |
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Panel Cutout Size |
138 × 138 mm (H × W) |
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Weight |
0.8 kg |
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Product Application
