Digital pH Meter Online – Panel Mounted Online pH Meter
Uma Industries manufactures and supplies digital online pH meters for
continuous 24×7 pH monitoring in industrial applications such as
ETP/STP plants, water treatment systems, chemical dosing processes,
RO/DM plants, pharmaceutical and food industries.
This panel mounted online pH meter is designed for installation in
industrial control panels and delivers stable, accurate pH measurement
with easy calibration and long service life in harsh operating conditions.
Key Features of Digital Online pH Meter
- Panel mounted industrial design for electrical control panels
- Continuous 24×7 online pH monitoring
- 2-point calibration using standard pH 4.00 and pH 7.00 buffers
- Front-panel calibration controls for field adjustment
- Bright 7-segment LED display for clear visibility
- BNC connector compatible with standard pH electrodes
- Heavy-duty PP / ABS enclosure for industrial environments
Key Features of Digital pH Meter Online
Uma Industries manufactures and supplies Digital pH Meter Online solutions for
continuous 24×7 pH monitoring in industrial applications such as ETP/STP plants…
Technical Specifications
- Measurement Range: 0.00 – 14.00 pH
- Resolution: 0.01 pH
- Calibration: 2-point (pH 4.00 & 7.00)
- Input: pH probe / electrode (BNC)
- Display: 7-segment LED
- Power Supply: 220–230V AC, single phase
- Panel Cut-out: 96 × 96 mm
- Application: Industrial online pH measurement
Working Principle of Online pH Meter
pH measurement is based on the activity of hydrogen ions (H⁺) in a solution.
The pH electrode generates a millivolt signal across its glass membrane.
This signal is processed by the digital pH meter and converted into a
stable pH value displayed on the instrument.
- pH < 7 – Acidic solution
- pH = 7 – Neutral solution
- pH > 7 – Alkaline solution
Technical reference:
pH scale |
Nernst equation
Calibration Procedure
- Rinse the pH electrode with distilled (DM) water.
- Immerse the probe in pH 7.00 buffer and adjust until stable.
- Rinse again with DM water.
- Immerse in pH 4.00 buffer and adjust accordingly.
- Repeat once for improved accuracy.
Periodic calibration ensures reliable pH control, reduced chemical consumption
and improved process efficiency.
Industrial Applications
- Effluent Treatment Plants (ETP)
- Sewage Treatment Plants (STP)
- RO / DM water treatment plants
- Chemical dosing & neutralization systems
- Cooling tower and boiler water monitoring
- Food, beverage and pharmaceutical utilities
- Electroplating and surface treatment processes
Related Online pH Meter Models
-
Digital Online pH Meter – Panel Mounted
-
Online pH Meter with 0–10V DC Output
-
Online pH Meter with 4–20mA Output
-
Modbus RS-485 Online pH Meter
-
Laboratory Table-Top & Portable pH Meter
-
pH Sensor / Electrode
Price & Quotation
For price, quotation, bulk orders or dealer enquiries,
please contact Uma Industries.
Share your application details (ETP, STP, RO or process),
and our team will recommend the most suitable model.
Call / WhatsApp:
+91-8178668698
Why Choose Uma Industries for Online pH Meters?
Uma Industries is a trusted Indian manufacturer of digital pH meters and
process instrumentation. Our online pH meters are designed for long-term
industrial use, stable measurement, and easy maintenance. We provide
application guidance, calibration support, spare parts availability and
after-sales service across India.
Frequently Asked Questions
How often should an online pH meter be calibrated?
For clean water applications, calibration every 7–15 days is sufficient.
For ETP, STP and chemical processes, calibration may be required every 3–7 days
depending on contamination levels.
Can this pH meter connect to PLC or SCADA?
Yes. Optional models are available with 4–20mA and
RS-485 Modbus RTU outputs for PLC and SCADA integration.
Other Resources
Need help choosing? Call/WhatsApp us for industrial pH/ORP solutions.
Reviews
There are no reviews yet.