The A30CD online Conductivity Controller is a tiny, portable, accurate, and reliable industrial-grade water quality analysis tool that can measure conductivity, resistivity, and temperature all at the same time. It is currently a cheap option for industries like sewage treatment, water supply, and chemical engineering that need to keep an eye on water quality all the time because it is very accurate, can be deployed in many ways, and is very resistant to interference. The device is easy to use, well-protected, and can work in challenging industrial situations. It gives stable data support for keeping an eye on water quality.
★★★★★
Features
Specifications
| Parameter Category | Specific Specifications |
|---|---|
| Measurement Range | Conductivity: 0.05μS/cm ~ 200mS/cm |
| Resistivity: 0.00MΩ·cm ~ 20.00MΩ·cm | |
| Measurement Accuracy | ±0.01 us/cm |
| Measurement Resolution | Conductivity: 0.01μS/cm |
| Temperature Compensation | 0 ~ 100℃, supports three modes: PT1000 automatic compensation, NTC10K automatic compensation, manual compensation |
| Signal Output | 4-20mA isolation protection output, independently corresponding to conductivity/resistivity or temperature, with a load of up to 500 Ω |
| Alarm Output | A set of high and low point alarms (3A/250 V AC) that can be freely matched, with normally open contact relays |
| Power Supply | AC220V or DC24V |
| Power Consumption | ≤7W |
| Environmental Conditions | Operating temperature: 0 ~ 60℃; Relative humidity: ≤85%RH |
| Overall Dimensions | 48×96×110mm (Height × Width × Depth) |
| Mounting Cutout Dimensions | 42×90mm (Height × Width) |
Standard Configuration
- Host:A30CD conductivity controller
- Conductive electrode:KS1-5M-NTC
Core Highlights
- Compact, portable and easy to install: The external dimensions are only 48 × 96 × 110mm, and a 42 × 90mm hole needs to be reserved for panel installation to save installation space and adapt to small control cabinets.
- High accuracy and anti-interference: The measurement accuracy reaches ± 1% FS, the 4-20mA output adopts isolation technology, the maximum load is 500 Ω, and the anti-interference ability is strong.
- Flexible control and protection: A set of relays supports high and low point alarms, and the hysteresis can be freely adjusted; The protection level reaches IP54, suitable for harsh industrial environments.
- Convenient operation and adaptation: Supports PT1000, NTC10K automatic compensation and manual compensation, customized segment code LCD screen display is clear, and menu prompt function simplifies operation.
Featured Applications

- Wastewater treatment: Watch for changes in the conductivity of wastewater to see how much pollution there is. Connect treatment processes to dosing systems to help them perform better.
- Guarantee of water supply: To make sure the water is safe to drink, verify the electrical resistivity of both the tap water and the backup water source.
- Chemical production: watching the conductivity of the reaction solution and the water that passes through it in real time, adjusting the process parameters, and making sure that production doesn’t stop because of bad water quality.
- Monitoring industrial processes: This kind of tracking is useful for minor points in areas like power and electroplating, and it gives you information that can help you control the process.
Installation and operation points
- Installation: A 42 × 90mm hole is reserved for the installation of the host panel, and the electrode is selected in a stable flow rate and bubble free position. It is installed in the direction of the upstream water flow, and dedicated cables are independently routed.
- Operation: Automatically enter measurement mode after power on, switch measurement mode, set relay threshold and current output range through buttons; Calibration requires entering the calibration interface according to the instructions and adjusting the values to match the standard solution.
- Maintenance: Keep the electrodes clean, avoid strong acid and alkali cleaning, and soak them in a special protective solution if left unused for a long time.
Technical Support
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If you are looking for a compact, portable, cost-effective, stable and reliable industrial water quality monitoring device, A30CD online Conductivity Controller is definitely the best choice! It is compact in size and does not take up space. The size of 48 × 96 × 110mm is suitable for various small control cabinets, and the 42 × 90mm opening requirement reduces installation difficulty.
It comes with original electrodes right out of the box and can be quickly deployed without additional matching.Whether it is small monitoring points in sewage treatment plants, water quality control in water supply systems, or process monitoring in chemical workshops, it can stably output conductivity, resistivity, and temperature data with high accuracy of ± 1% FS, IP54 protection level, and strong anti-interference ability.
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