ph Controller in Kolhapur – Online Digital pH Controller for Automatic Dosing

UMA Industries supplies a reliable ph Controller in Kolhapur
for continuous pH measurement, automatic acid dosing, alkali dosing, high and
low pH alarms and industrial process control. The panel-mounted digital
controller is suitable for ETP plants, STP plants, RO plants, neutralisation
tanks, electroplating units, foundries, textile-processing plants, sugar
factories, dairy plants, food-processing industries, cooling towers and
industrial water-treatment systems.

Industrial ph Controller in Kolhapur

An industrial ph Controller in Kolhapur continuously receives
the electrical signal generated by a compatible pH electrode, converts it into
a digital pH value and operates external equipment according to programmed
control limits. Its potential-free relay outputs can be connected to dosing
pumps, alarms, solenoid valves, contactors and process-interlocking circuits.

A standard pH meter measures and displays the current pH value. A digital pH
controller performs the same measurement and additionally provides automatic
control outputs. This allows acidic or alkaline conditions to be corrected
without depending entirely on manual sample testing and manual chemical dosing.

When the measured value falls below the programmed low-pH limit, one relay
can operate an alkali dosing pump. When the value rises above the programmed
high-pH limit, the second relay can operate an acid dosing pump. The actual
relay direction must be verified according to the chemical, process design
and electrical wiring.

Main Features of ph Controller in Kolhapur

• Continuous online pH measurement for industrial processes
• Measurement range from 0.00 to 14.00 pH
• Digital display resolution of 0.01 pH
• Bright seven-segment LED display
• Two independent pH control set points
• Separate low-pH and high-pH settings
• Two potential-free relay outputs
• Separate control for acid and alkali dosing pumps
• Relay operation for pumps, alarms, valves and process interlocks
• Two-point calibration using pH 4.00 and pH 7.00 buffers
• BNC input for a compatible industrial pH electrode
• SET, UP, DOWN and ENTER keys for adjustment
• Panel-mounted PP or ABS enclosure
• Suitable for continuous industrial operation
• RS485 Modbus RTU communication model available
• 4–20 mA and 0–10 VDC pH instrument options available
• Compatible pH electrodes available in different cable lengths

Technical Specifications

The following are standard specifications for a
ph Controller in Kolhapur. Final sensor construction,
cable length, relay wiring and communication options should be selected
according to the process liquid and plant automation requirements.

Working Principle of an Online pH Controller

A combination pH electrode contains a sensitive glass membrane and a
reference system. When the electrode is immersed in water or a process
liquid, it generates a small electrical potential related to hydrogen-ion
activity. The controller processes this signal, applies the stored
calibration values and displays the measured pH.

The operator enters the required low-pH and high-pH limits. When the measured
value crosses either programmed limit, the corresponding relay changes state.
This relay can operate a suitably wired dosing pump, alarm, solenoid valve,
interposing relay or industrial control-panel input.

Low-pH Control

When the process liquid becomes more acidic than the programmed low-pH value,
the low-pH relay can start an alkali dosing pump. The alkaline chemical raises
the pH towards the required operating range. The output can alternatively
operate a low-pH alarm or plant interlock.

High-pH Control

When the liquid becomes more alkaline than the programmed high-pH value, the
high-pH relay can start an acid dosing pump. The acid lowers the pH towards
the selected range. Correct chemical concentration, dosing-pump capacity,
mixing time and control differential help prevent excessive dosing.

Set-Point Adjustment Procedure

Setting the High-pH Limit

1. Press the SET key once.
2. The high-pH set value will appear or blink on the display.
3. Use the UP and DOWN keys to select the required high-pH value.
4. Press ENTER to save the setting.

Setting the Low-pH Limit

1. Press the SET key twice.
2. The low-pH set value will appear on the display.
3. Use the UP and DOWN keys to select the required low-pH value.
4. Press ENTER to save the setting.

Before starting automatic dosing, confirm that the acid and alkali pumps are
connected to the correct relay outputs. Incorrect pump wiring can move the
process pH further away from the required control range.

Calibration of ph Controller in Kolhapur

Regular calibration is essential for dependable operation of a
ph Controller in Kolhapur. Electrode ageing, chemical
exposure, oil, sludge, scale and process deposits can gradually affect sensor
response. Fresh pH 7.00 and pH 4.00 buffer solutions should be used for
standard two-point calibration.

Materials Required for Calibration

• Fresh pH 7.00 buffer solution
• Fresh pH 4.00 buffer solution
• Clean distilled or demineralised water
• Separate clean beakers for both buffer solutions
• Suitable pH-electrode cleaning solution
• Soft tissue for gently removing excess liquid
• Calibration and maintenance record sheet

Step-by-Step Calibration Procedure

1. Switch on the controller and allow the display to stabilise.
2. Remove the pH electrode carefully from the tank, pipeline or flow cell.
3. Inspect the electrode glass bulb, cable and BNC connector for damage.
4. Clean oil, sludge, scale or chemical deposits using a suitable cleaning method.
5. Rinse the electrode with distilled or demineralised water.
6. Do not rub, scrape or scratch the sensitive glass bulb.
7. Immerse the electrode in fresh pH 7.00 buffer solution.
8. Wait until the displayed value becomes stable.
9. Adjust the neutral calibration setting until the display shows 7.00.
10. Remove the electrode and rinse it again with clean water.
11. Immerse the electrode in fresh pH 4.00 buffer solution.
12. Wait until the reading becomes stable.
13. Adjust the second calibration point until the display shows 4.00.
14. Rinse the electrode and verify the reading again in pH 7.00 buffer.
15. Reinstall the sensor and observe the live process value.
16. Check the low-pH and high-pH set points and both relay outputs.
17. Record the calibration date, buffer values and final readings.

Recommended Calibration Frequency

Calibration frequency depends on the process liquid, operating temperature,
contamination and required accuracy. Clean-water systems may be calibrated
weekly, fortnightly or monthly. Wastewater, foundry effluent, electroplating
solutions, sludge, oily liquids and aggressive chemicals may require more
frequent cleaning and calibration.

Replace the pH electrode when its response becomes very slow, continuously
unstable or impossible to calibrate correctly after proper cleaning.

Uses of ph Controller in Kolhapur

A ph Controller in Kolhapur is used wherever wastewater
neutralisation, automatic chemical dosing, process consistency or
water-treatment efficiency depends on maintaining a selected pH range.

• Effluent Treatment Plants:
  Automatic acid or alkali dosing before wastewater discharge or further treatment.
• Sewage Treatment Plants:
  Controlling pH during biological treatment and treated-water discharge.
• Foundries:
  Monitoring scrubber water, process water, chemical treatment and industrial effluent.
• Electroplating Units:
  Controlling pretreatment baths, plating processes, rinse water and effluent neutralisation.
• Automotive-Component Industries:
  Pretreatment lines, washing systems, paint-shop water and plant ETP applications.
• Engineering and Fabrication Plants:
  Surface-treatment liquids, component-cleaning systems and wastewater treatment.
• Textile Industries:
  Bleaching, washing, dyeing, finishing and effluent-treatment processes.
• Chemical Industries:
  Reaction vessels, mixing tanks, dosing skids and neutralisation systems.
• Food and Beverage Plants:
  Utility-water treatment, cleaning systems and wastewater control.
• Dairy Industries:
  Cleaning-process wastewater, utility water and ETP applications.
• Sugar Industries:
  Process-water treatment, chemical dosing and effluent neutralisation.
• RO and DM Plants:
  Feed-water conditioning, chemical dosing and treated-water monitoring.
• Cooling Towers and Boilers:
  Supporting chemical treatment, scale prevention and corrosion control.
• Aquaculture:
  Continuous water-pH monitoring and automatic chemical correction.

Benefits of Automatic pH Control

Installing a ph Controller in Kolhapur helps automate
chemical correction and provides a faster response to abnormal acidic or
alkaline process conditions.

• Continuous real-time pH measurement
• Automatic correction of acidic and alkaline conditions
• Separate relay outputs for acid and alkali dosing
• Reduced dependence on manual sampling
• Reduced manual chemical addition
• Reduced chemical overdosing and wastage
• Improved wastewater-neutralisation consistency
• Faster identification of abnormal pH conditions
• Improved treatment and production quality
• High-pH and low-pH alarm operation
• Easy integration with industrial control panels
• Optional PLC, HMI, SCADA and data-logging integration

Selecting a Suitable pH Electrode

The electrode is the main sensing component of the pH-control system.
Electrode selection should consider the process liquid, temperature,
pressure, suspended solids, oil, contamination, chemical compatibility,
installation method and required cable length.

• General-purpose glass electrode for relatively clean water
• Industrial immersion electrode for tanks and sumps
• Flow-through electrode for pipelines and sampling chambers
• Double-junction electrode for contaminated liquids
• Flat-surface electrode for viscous process liquids
• High-temperature electrode for heated solutions
• Long-cable electrode for deep tanks and remote installations
• Chemical-resistant electrode for aggressive industrial liquids

Installation and Wiring Guidelines

Correct installation of a ph Controller in Kolhapur and its
electrode helps reduce fluctuating readings, measurement errors and incorrect
dosing operation.

1. Install the controller inside a clean and dry electrical panel.
2. Protect the instrument from water spray, corrosive fumes and excessive heat.
3. Install the electrode where the process liquid is properly mixed.
4. Do not install the electrode directly beside an acid or alkali injection point.
5. Keep the glass sensing bulb immersed during continuous measurement.
6. Avoid locations where air bubbles collect around the sensing bulb.
7. Keep the electrode cable away from motors, VFDs, contactors and power wiring.
8. Provide proper electrical earthing to reduce unstable readings.
9. Use shielded signal or communication cable where electrical noise is present.
10. Use an interposing relay or contactor when the dosing-pump load exceeds the
    controller relay rating.
11. Install suitable non-return valves in acid and alkali dosing lines.
12. Use chemically compatible tubing, valves and dosing-pump components.
13. Provide sufficient mixing time after chemical addition.
14. Confirm the dosing direction, relay logic and safety interlocks during commissioning.

Maintenance and Safety Precautions

• Never allow the pH-electrode glass bulb to remain dry.
• Store the electrode in the recommended storage solution.
• Do not permanently store the electrode in distilled or DM water.
• Clean deposits using a method suitable for the contamination.
• Do not scratch or aggressively wipe the glass sensing bulb.
• Use fresh and uncontaminated calibration buffer solutions.
• Never return used buffer solution to its original container.
• Inspect the electrode cable and BNC connector regularly.
• Keep chemical leakage away from the electrical panel.
• Isolate the electrical supply before modifying relay wiring.
• Use suitable PPE while handling acids, alkalis and process chemicals.
• Maintain calibration, maintenance and electrode-replacement records.

ph Controller in Kolhapur and Nearby Industrial Areas

UMA Industries supplies ph Controller in Kolhapur products
to ETP contractors, OEM panel builders, automation companies, water-treatment
businesses, foundries, laboratories and manufacturing plants throughout
Kolhapur and nearby Maharashtra and Karnataka industrial regions.

Major Industrial Areas in Kolhapur

• Shiroli MIDC
• Gokul Shirgaon MIDC
• Kagal-Hatkanangale Five Star MIDC
• Udyamnagar Industrial Area
• Yadrav Industrial Area
• Ichalkaranji Industrial Area
• Hatkanangale industrial belt
• Hupari industrial and metal-processing area
• Jaysingpur Industrial Area
• Shirol Industrial Area
• Kagal Industrial Area
• Gadhinglaj Industrial Area
• Rukadi and Herle industrial belt
• Shiye industrial area

Surrounding Industrial Cities

• Ichalkaranji:
  Textile processing, engineering, fabrication, foundry and machinery industries.
• Jaysingpur and Shirol:
  Engineering, agricultural equipment, food processing and fabrication units.
• Hupari:
  Metal processing, engineering, jewellery manufacturing and small industries.
• Sangli and Miraj:
  Engineering, food processing, foundry, fabrication and industrial-equipment companies.
• Karad:
  Machinery, engineering, chemical, sugar and fabrication industries.
• Satara:
  Automotive components, engineering, food, chemical and manufacturing plants.
• Belagavi:
  Foundries, castings, hydraulic equipment, automotive components and engineering units.
• Hubballi-Dharwad:
  Engineering, machine tools, fabrication and industrial-component manufacturers.
• Goa:
  Pharmaceutical, food, marine, chemical and engineering industries.
• Pune and Chakan:
  Automotive, engineering, automation, chemical and water-treatment industries.

Other Products in the pH Meter and Controller Category

Buyers selecting a ph Controller in Kolhapur can review the
following UMA Industries products for automatic dosing, continuous pH
monitoring, analogue output, RS485 communication and replacement electrodes.

• 
  Digital pH Controller Online
  
  – Two set points and two potential-free relay outputs for automatic acid
  and alkali dosing.
• 
  RS485 Modbus RTU pH Controller
  
  – Communication-enabled controller for PLC, HMI, SCADA and data logging.
• 
  Digital pH Meter Online
  
  – Panel-mounted instrument for continuous industrial pH monitoring.
• 
  Modbus 485 pH Meter Online
  
  – Online pH meter with RS485 Modbus RTU communication.
• 
  Digital pH Meter with 4–20 mA Output
  
  – Analogue-output instrument for PLC, SCADA, recorder and remote monitoring.
• 
  Digital pH Meter with 0–10 VDC Output
  
  – Voltage-output pH meter for compatible industrial automation systems.
• 
  Glass pH Sensor with 1-Metre Cable
  
  – Replacement pH electrode for compatible online meters and controllers.
• 
  Industrial pH Sensor with 3-Metre Cable
  
  – Industrial electrode for ETP tanks, treatment systems and process monitoring.
• 
  Industrial pH Sensor with 5-Metre Cable
  
  – Longer-cable electrode for remote tanks and measurement locations.
• 
  Industrial pH Sensor with 10-Metre Cable
  
  – Extended-cable electrode for deep tanks and distant control panels.

External Technical Reference

For additional scientific information about hydrogen-ion activity, acidic
conditions, alkaline conditions and the pH scale, visit the

United States Environmental Protection Agency technical reference on pH
.

Frequently Asked Questions

Order ph Controller in Kolhapur

To select the correct ph Controller in Kolhapur, share your
process-liquid details, required control range, tank capacity, electrode
installation, dosing-pump rating, cable length and communication requirements.
UMA Industries can recommend a suitable controller, industrial pH electrode
and automatic acid or alkali dosing arrangement.