Compact Conductivity Controller：A30CD 

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.

★★★★★

  • Short delivery time
  • Better price
  • Customizable parameters

Features

  • There are various temperature compensation methods available, including PT1000, NTC10K/manual temperature compensation.
  • One 4-20mA output, corresponding to conductivity/resistivity values, using isolation technology, strong anti-interference ability
  • A set of relays can switch between high and low points freely, and the hysteresis can be adjusted freely to avoid frequent on-off of the relays
  • Customized segment code LCD screen with clear display

Specifications

Parameter CategorySpecific Specifications
Measurement RangeConductivity: 0.05μS/cm ~ 200mS/cm
Resistivity: 0.00MΩ·cm ~ 20.00MΩ·cm
Measurement Accuracy±0.01 us/cm
Measurement ResolutionConductivity: 0.01μS/cm
Temperature Compensation0 ~ 100℃, supports three modes: PT1000 automatic compensation, NTC10K automatic compensation, manual compensation
Signal Output4-20mA isolation protection output, independently corresponding to conductivity/resistivity or temperature, with a load of up to 500 Ω
Alarm OutputA set of high and low point alarms (3A/250 V AC) that can be freely matched, with normally open contact relays
Power SupplyAC220V or DC24V
Power Consumption≤7W
Environmental ConditionsOperating temperature: 0 ~ 60℃; Relative humidity: ≤85%RH
Overall Dimensions48×96×110mm (Height × Width × Depth)
Mounting Cutout Dimensions42×90mm (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

Although there is only one set of relays, it supports switching between high and low point modes at will, and bidirectional alarms can be achieved by setting trigger values and hysteresis values. For example, in the high point mode, if the value is higher than the trigger value, it will be engaged, and if it is lower than (trigger value hysteresis), it will be disconnected; The low point mode, on the other hand, can meet basic alarm requirements without the need for additional equipment.

The measured number of the output current does not match the output current. What should be done? As a first step, set the measurement values to 4mA and 20mThis is done to make sure that the range choices on the upper computer are correct. For example, 4mA means 0 μ S/cm and 20mA means 200mS/cm.

If the measured value of the output current doesn’t match the screen value, go to the current calibration menu, use a standard ammeter to measure the actual output current, and then change the screen value to match the ammeter reading. If it still doesn’t match, make sure the wiring is tight and the load resistance is higher than 500 Ω. Once the wiring issue has been ruled out, re-calibrate it

An IP54 grade only keeps out a small amount of dust and water splashes. You shouldn’t use it outside in places that are always wet or don’t have anything in the way. If the equipment needs to be used outside, it should be kept out of the rain and other places where water can gather by putting it in a waterproof control box. If the equipment is used in a damp workshop, the area where it is installed should be kept dry and well-ventilated so that water droplets don’t get on the equipment panel or wire terminals and short circuit or mess up measurements. This will also shorten the life of the equipment.

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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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