
RTM Online pH and ORP Analyzer Controller Panel Mount
Customize
Share :
A. Product Overview
RTM-ANL-PHORP-CONT-24144 is an advanced online pH and ORP Analyzer Controller used for continuous measurement and control of pH or oxidation reduction potential in liquid processes. It is designed in a larger 144 x 144 mm panel mount format, making it suitable for industrial control panels where better visibility and a larger instrument size are preferred.
The controller can be configured for pH measurement or ORP measurement depending on the selected sensor and application requirement. It is suitable for pH measurement from 0 to 14 pH and ORP measurement from minus 2000 mV to 2000 mV.
RTM-ANL-PHORP-CONT-24144 includes an OLED LCD display, relay outputs for dosing and alarm control, 4 to 20 mA retransmission output for signal transfer and RS485 Modbus RTU communication for digital integration with PLC, SCADA and monitoring systems.
This model is suitable for water treatment panels, ETP and STP panels, chemical dosing panels, cooling water treatment systems, process water monitoring panels and industrial automation applications where reliable online pH or ORP control is required.
B. Working Principle
RTM-ANL-PHORP-CONT-24144 works by receiving a signal from a connected pH sensor or ORP sensor installed in the liquid process. The sensor can be installed in a tank, pipeline, flow cell or treatment system depending on site requirements.
For pH measurement, the pH sensor detects hydrogen ion activity in the liquid and generates a millivolt signal. The controller processes this signal and converts it into a pH value. Lower pH indicates acidic liquid, while higher pH indicates alkaline liquid.
For ORP measurement, the ORP sensor measures oxidation reduction potential in millivolts. ORP indicates whether the liquid has oxidizing or reducing characteristics. This is useful in disinfection, chlorination, oxidation, chemical dosing and water treatment applications.
The controller supports automatic or manual temperature compensation for pH measurement. This helps improve reading stability because pH sensor response can change with temperature.
Based on the programmed set points, the relay outputs can operate acid dosing pumps, alkali dosing pumps, oxidant dosing pumps, alarms, control valves or interlock circuits. The 4 to 20 mA output and RS485 Modbus RTU communication allow the measured value to be transferred to PLC, SCADA, recorder, data logger or remote monitoring system.
C. Why It Is Used
RTM-ANL-PHORP-CONT-24144 is used to continuously monitor and control pH or ORP in water and process liquid systems. pH and ORP are important parameters for treatment quality, chemical dosing, disinfection, neutralization, process safety and discharge control.
In ETP and STP plants, pH monitoring helps maintain proper neutralization and treatment conditions. In chemical dosing systems, it helps automate acid and alkali dosing. In disinfection and oxidation systems, ORP monitoring helps verify chemical strength and process effectiveness.
The larger 144 x 144 controller format is useful where operators prefer a bigger display area and panel-mounted instrument for easier monitoring. The relay outputs support direct control and alarm operation, while 4 to 20 mA and RS485 outputs support automation system integration.
Main reasons for using RTM-ANL-PHORP-CONT-24144 include:
- Continuous online pH and ORP monitoring
- Larger 144 x 144 panel mount design for industrial panels
- OLED LCD display for clear process value indication
- Relay output for dosing, alarm and interlock control
- 4 to 20 mA retransmission output for PLC and recorder connection
- RS485 Modbus RTU communication for automation systems
- Temperature compensation for stable pH measurement
- Suitable for ETP, STP, water treatment and chemical process applications
- Reduced manual testing and better process control
- Better control of acid, alkali, oxidant and chemical dosing
D. Suitable Buyers
RTM-ANL-PHORP-CONT-24144 is suitable for buyers who need an advanced pH or ORP controller with large panel size, relay control, analog output and digital communication.
Suitable buyers include:
- ETP plant manufacturers
- STP plant manufacturers
- Water treatment plant suppliers
- RO plant manufacturers
- Chemical dosing system manufacturers
- Industrial wastewater treatment plants
- Chemical process industries
- Pharma utility departments
- Food and beverage processing plants
- Textile and dyeing industries
- Cooling water treatment companies
- Panel builders
- Automation system integrators
- PLC and SCADA solution providers
- Environmental monitoring companies
- Maintenance and purchase departments looking for online pH and ORP controllers
FAQ
1. What is RTM-ANL-PHORP-CONT-24144?
RTM-ANL-PHORP-CONT-24144 is a 144 x 144 panel mount pH and ORP Analyzer Controller used for online pH or ORP measurement, dosing control, alarm operation and automation integration.
2. Can RTM-ANL-PHORP-CONT-24144 measure both pH and ORP?
Yes, the controller range supports pH or ORP operation depending on the selected configuration and connected sensor.
3. What is the pH measuring range?
The pH measuring range is 0 to 14 pH.
4. What is the ORP measuring range?
The ORP measuring range is minus 2000 mV to 2000 mV.
5. What is the size of RTM-ANL-PHORP-CONT-24144?
The controller size is 144 x 144 x 110 mm.
6. What type of display is used in this controller?
RTM-ANL-PHORP-CONT-24144 uses an OLED LCD display for clear pH or ORP value indication.
7. What is the resolution of this controller?
The listed resolution is 0.001 pH for pH measurement and 1 mV for ORP measurement.
8. What is the accuracy of RTM-ANL-PHORP-CONT-24144?
The listed accuracy is plus or minus 0.1 pH and plus or minus 2 mV.
9. Does this controller support temperature compensation?
Yes, it supports temperature compensation for pH measurement.
10. Does RTM-ANL-PHORP-CONT-24144 have relay output?
Yes, it has two relay outputs for dosing control, alarm operation, pump control and process interlocking.
11. Does this controller have analog output?
Yes, it provides 4 to 20 mA retransmission output for sending the measured value to PLC, SCADA, recorder, remote indicator or data logger.
12. Does RTM-ANL-PHORP-CONT-24144 support RS485 communication?
Yes, it supports RS485 Modbus RTU communication.
13. Can this controller be connected to PLC or SCADA?
Yes, it can be connected to PLC or SCADA using 4 to 20 mA output or RS485 Modbus RTU communication.
14. What is the power supply requirement?
The catalog mentions 90 to 260 VAC power supply and optional 24 VDC power.
15. Where is RTM-ANL-PHORP-CONT-24144 commonly used?
It is commonly used in ETP, STP, water treatment plants, chemical dosing systems, cooling water treatment, wastewater treatment, process water systems, pharma utilities, food and beverage plants and industrial automation panels.
16. Can it be used for acid and alkali dosing?
Yes, it can be used for acid and alkali dosing control by using set points and relay outputs to operate dosing pumps.
17. Can it be used for ORP-based disinfection monitoring?
Yes, when connected with an ORP sensor, it can be used for oxidation reduction potential monitoring in disinfection, chlorination, oxidation and chemical treatment applications.
18. What type of sensor is used with this controller?
It is used with a suitable pH sensor or ORP sensor depending on the application. Sensor selection depends on liquid type, temperature, pressure, mounting connection, cable length and process compatibility.
19. Why choose the 144 x 144 version instead of a 96 x 96 controller?
The 144 x 144 version is suitable when a larger panel-mounted instrument is preferred for better visibility, easier operation and larger control panel layouts.
20. Who should buy RTM-ANL-PHORP-CONT-24144?
This product is suitable for ETP and STP manufacturers, water treatment companies, chemical dosing system makers, panel builders, system integrators, pharma plants, food and beverage plants, textile units, chemical plants and industrial maintenance teams.




