PH Controller with Dosing Quantity and Delay
PH Controller with Dosing Quantity and Delay is specially designed for automatic chemical dosing applications where controlled dosing is required to avoid over-dosing. This controller measures the pH value of water, chemical solution or process liquid and controls dosing pump operation according to high and low pH set points, dosing quantity and delay time.
UMA Industries manufactures and supplies reliable PH Controller with Dosing Quantity and Delay for ETP plants, STP plants, RO plants, neutralisation tanks, chemical dosing systems, electroplating, textile processing, water treatment and industrial process control. This model is useful where the actual change in pH takes time after chemical dosing, so the controller waits for the selected delay time before repeating the dosing cycle.
PH Controller with Dosing Quantity and Delay – Main Features
- Automatic pH control with dosing quantity setting
- Delay time setting to allow pH stabilisation after dosing
- Two set points for high pH and low pH limits
- Two potential-free relay outputs for dosing pump or alarm control
- Helps avoid chemical over-dosing
- Suitable for acid and alkali dosing applications
- Auto calibration using 4 pH and 7 pH standard buffer solution
- Bright LED display for easy pH reading
- Panel-mounted design for industrial control panels
Technical Specifications: PH Controller with Dosing Quantity and Delay
- Range: 0.00 to 14.00 pH
- Resolution: 0.10 pH
- Tolerance: ±0.10 pH
- Input: pH probe / electrode with standard BNC connector
- Set Points: 2 set points for upper limit and lower limit
- Output: 2 potential-free relay outputs
- Dosing Quantity: Adjustable dosing quantity in ML
- Delay Time: Adjustable delay time in minutes
- Calibration: Auto calibration by front panel push buttons using 4 pH and 7 pH buffer solution
- Display: Seven-segment bright LED display
- Operating Voltage: 220 VAC
- Panel Size: 96 mm × 96 mm × 110 mm
- Body: PP / ABS enclosure
- Mounting: Panel mounted online type
Working Principle of PH Controller with Dosing Quantity and Delay
This pH controller is designed to improve automatic dosing accuracy. In many tanks and chemical processes, the pH value does not change immediately after chemical dosing. If a normal controller keeps dosing continuously, it may add excess chemical and create over-dosing. This model avoids that problem by dosing a fixed quantity first, then waiting for the selected delay time before checking the pH value again.
The operator sets the required higher pH limit, lower pH limit, dosing quantity in ML and delay time in minutes. When the pH value crosses the set limit, the controller operates the dosing pump for the required dosing quantity. After dosing, it waits for the selected delay time so the chemical can mix properly and the actual pH change can be evaluated. If the pH is still outside the set range, the controller repeats the dosing cycle.
Alarm Level and Dosing Settings
Higher Level Dosing Pump / Alarm Setting
- Press the SET button once.
- Use the UP and DOWN buttons to set the higher pH alarm or relay output value.
- If the pH value goes above this setting, the related relay output will operate as per wiring.
- Use this output for acid dosing pump, high pH alarm or process interlock according to your application.
Lower Level Dosing Pump / Alarm Setting
- Press the SET button twice.
- Use the UP and DOWN buttons to set the lower pH alarm or relay output value.
- If the pH value goes below this setting, the related relay output will operate as per wiring.
- Use this output for alkali dosing pump, low pH alarm or process interlock according to your application.
Setting Delay Time and Dosing Quantity
Delay Time Setting
- Press the SET button three times.
- Set the delay time in minutes using the UP and DOWN buttons.
- This delay allows the pH value to stabilise after chemical dosing.
- Press ENT to save the setting.
Dosing Quantity Setting
- Press the SET button four times.
- Set the dosing quantity in ML using the UP and DOWN buttons.
- The dosing pump speed or pump capacity should be selected correctly during installation.
- After the waiting time, the controller will check pH again and repeat dosing only if required.
- Press ENT to save all changes.
Why Dosing Delay is Important in pH Control
In many industrial tanks, chemicals need time to mix properly with the solution. The pH electrode may show the actual result only after proper mixing. Without delay, continuous dosing can result in excess acid or alkali addition. A pH controller with dosing delay helps prevent this problem and gives more stable pH control.
This makes the controller useful for batch tanks, neutralisation tanks, process vessels, water treatment plants and chemical dosing systems where accurate dosing and controlled reaction time are required.
Applications of PH Controller with Dosing Quantity and Delay
ETP Plants
Effluent treatment plants use this controller for controlled acid or alkali dosing before discharge. Dosing quantity and delay time help maintain proper neutralisation without over-dosing.
STP Plants
Sewage treatment plants use pH control for treated water monitoring and dosing applications. The controller can operate dosing pumps and alarm outputs as required.
RO Plants
RO plants require pH control for feed water conditioning and chemical treatment. This controller helps manage dosing in a controlled cycle.
Neutralisation Tanks
Neutralisation tanks often need controlled chemical addition. This controller doses a fixed quantity, waits for mixing and checks the pH again before repeating the cycle.
Electroplating and Surface Treatment
Electroplating plants use pH controllers for bath correction, chemical dosing and process stability. Controlled dosing helps improve bath life and quality.
Textile and Dyeing Industries
Textile processing and dyeing units use pH control for chemical bath monitoring, washing process and effluent treatment.
Chemical Process Industries
Chemical industries use dosing quantity and delay-based pH controllers where chemical reaction time and controlled addition are important.
Food, Dairy and Pharmaceutical Utilities
Food, dairy and pharma utilities use pH control for process water, cleaning systems, neutralisation and quality control applications.
Types of pH Meters and pH Controllers We Supply
- Digital pH Meter Online – Online panel-mounted pH meter with 2-point calibration.
- Digital pH Meter with 0-10 VDC Output – Suitable for PLC and signal monitoring systems.
- Digital pH Meter with 4-20 mA Output – Analog output model for process control.
- RS485 Modbus RTU pH Controller – Suitable for SCADA and digital communication systems.
- pH Controller with 1 Relay – Single relay model for dosing or alarm control.
- pH Controller with 2 Relay Output – Dual relay model for low and high pH control.
- Digital pH Controller Online – Online controller with 2 set points and relay output.
- Table Top pH Meter – Laboratory pH meter for sample testing.
- pH Sensor / Probe / Electrode – Replacement sensor for pH meter and pH controller.
To view more models, visit our pH Meter product category and pH Controller product category.
Related Dosing Products
- Dosing Pump 6 LPH
- Dosing Pump 10 LPH
- Dosing Pump 30 LPH
- 60 LPH Dosing Pump
- TDS Controller Dosing Setting – Used to maintain TDS by dosing control.
- Dosing Pump Controller by Sensor
- Passivation Dosing Timer – Used for dosing passivation chemical by counting jigs and setting ML according to average consumption.
- Dosing Pump Timer
- Conductivity Controller Dosing Setting
- Automatic pH Dosing System
Calibration Procedure for PH Controller with Dosing Quantity and Delay
Calibration with 7 pH Buffer Solution
- Clean the pH electrode with clean water or DM water.
- Dip the electrode in standard 7 pH buffer solution.
- Wait until the display reading becomes stable.
- Use the calibration buttons or setting to adjust the display to 7.00 pH.
- Save the calibration as per controller instruction.
Calibration with 4 pH Buffer Solution
- Wash the pH electrode again with clean water or DM water.
- Dip the electrode in standard 4 pH buffer solution.
- Wait until the reading becomes stable.
- Use the calibration buttons or setting to adjust the display to 4.00 pH.
- Save the calibration as per controller instruction.
For accurate measurement, use fresh buffer solution and clean the electrode before calibration. Do not rub the glass bulb harshly because it may damage the sensitive surface of the pH electrode.
Work Instructions and User Precautions
- Install the controller in a clean and dry electrical control panel.
- Use a suitable pH electrode according to the process liquid and temperature.
- Do not keep the pH electrode dry for a long time.
- Clean the electrode regularly in dirty water, chemical solution or effluent.
- Keep the pH signal cable away from high voltage wiring, VFD cable and motor cable.
- Use shielded cable for long-distance pH signal wiring where required.
- Check dosing pump capacity before setting ML dosing quantity.
- Allow proper mixing in the tank before finalising delay time.
- Use proper relay wiring through contactor or interposing relay for higher pump load.
- Protect the controller from water splash, acid fumes and high humidity.
Benefits of PH Controller with Dosing Quantity and Delay
A PH Controller with Dosing Quantity and Delay helps improve dosing accuracy by adding only the selected amount of chemical and then waiting for the pH value to stabilise. It reduces the risk of over-dosing, saves chemicals and improves process stability.
- Helps avoid over-dosing of acid or alkali
- Improves pH control in neutralisation tanks
- Supports dosing quantity setting in ML
- Allows delay time setting for proper chemical reaction
- Useful for automatic dosing pump control
- Reduces manual checking and manual dosing
- Suitable for industrial process automation
Supply Areas for PH Controller with Dosing Quantity and Delay
We supply PH Controller with Dosing Quantity and Delay, online pH meters, pH electrodes, dosing pumps and dosing controllers across India. Our products are used in water treatment plants, ETP/STP plants, chemical industries, electroplating plants, textile processing units, pharma plants, food industries and OEM control panels.
We supply to major industrial cities and areas including Faridabad, Delhi NCR, Noida, Gurugram, Ghaziabad, Jaipur, Ahmedabad, Naroda GIDC, Vatva GIDC, Odhav, Sanand, Changodar, Gandhinagar, Kalol, Mehsana, Vadodara, Bharuch, Ankleshwar, Surat, Vapi, Rajkot, Pune, Mumbai, Chennai, Bengaluru and Hyderabad.
FAQs: PH Controller with Dosing Quantity and Delay
What is PH Controller with Dosing Quantity and Delay?
It is a pH controller that measures pH value and controls dosing pump operation using set points, dosing quantity in ML and delay time in minutes.
Why is dosing delay required in pH control?
Dosing delay is required because pH value may take time to change after chemical dosing. Delay helps the solution mix properly before the controller checks pH again.
How does dosing quantity setting work?
The user sets a fixed dosing quantity in ML. The controller operates the dosing pump to dose that amount and then waits for the selected delay time before checking pH again.
Does this controller help prevent over-dosing?
Yes, this controller helps prevent over-dosing by adding chemical in controlled quantity and waiting for the pH value to stabilise before repeating dosing.
Where is this pH controller used?
It is used in ETP plants, STP plants, RO plants, neutralisation tanks, chemical dosing systems, electroplating, textile processing and water treatment applications.
How many relay outputs are available?
This controller has two potential-free relay outputs for dosing pump, alarm, valve or control panel wiring.
Can it control acid and alkali dosing pumps?
Yes, it can be used for acid dosing and alkali dosing according to high pH and low pH set point requirements.
How is the controller calibrated?
The controller is calibrated using 7 pH and 4 pH standard buffer solutions. The electrode is dipped in buffer solution and the display is adjusted accordingly.
Do you supply dosing pumps also?
Yes, we supply dosing pumps, dosing pump timers, dosing pump controllers and automatic pH dosing systems.
Do you supply PH Controller with Dosing Quantity and Delay across India?
Yes, we supply PH Controller with Dosing Quantity and Delay, dosing pumps and pH electrodes across India with dispatch support and technical guidance.
Business Partner / Dealer Opportunity
Join us as a business partner, dealer, distributor or stockist in your city. If you are interested in pH controllers, dosing pumps, pH meters, pH sensors and industrial instruments, you can send your proposal to us. Your efforts will be highly appreciated.
Our Other Websites
- phmeters.in – pH meters, pH controllers, sensors and industrial instruments.
- salt-spray-chamber.in – Salt spray chamber and corrosion test chamber products.
- water-tank.in – Overhead tanks, water storage tanks and chemical tanks.
- YouTube Channel – Product videos and updates.
- MCS Facebook Page – Recent offers and updates.
Useful Reference
For basic understanding of pH measurement, you may also read this external reference: pH value information.
Contact us for PH Controller with Dosing Quantity and Delay, dosing pump, automatic pH dosing system, pH electrode and industrial pH control solutions.
Need help choosing? Call/WhatsApp us for industrial pH/ORP solutions.
Reviews
There are no reviews yet.