RTM Dual Channel Conductivity and TDS Controller

A. Product Overview

The RTM-ANL-CTDS-CONT-144 Dual Channel Conductivity and TDS Controller is an online analyzer controller used for measuring and controlling conductivity and TDS values in water and liquid process applications. It is designed for panel mounting and comes in a 144 x 144 x 85 mm ABS body with a 142 x 142 mm cutout size. The controller supports double input channel operation, making it suitable where two measurement points need to be monitored from one instrument.

This model is part of the RTM Conductivity and TDS Analyzer Controller range and is suitable for use with RTM conductivity sensor cells. The catalogue mentions features such as 3.5 inch LCD display, 5A relay outputs, 4 to 20 mA analog outputs, automatic temperature compensation and on or off control for the 144 x 144 mm dual channel model.

The controller can be used for conductivity and TDS monitoring in applications such as RO plants, DM water systems, process water lines, cooling water, boiler feed water, water treatment plants and pharmaceutical water systems.

B. Working Principle

The RTM-ANL-CTDS-CONT-144 works with conductivity sensor cells installed in the water or liquid process line. The conductivity sensor detects the electrical conductivity of the liquid, which depends on the concentration of dissolved ions present in the water.

The controller receives the signal from the conductivity cell and displays the measured value in conductivity units such as uS or mS, and can also convert the reading into TDS value in PPM. The controller uses automatic temperature compensation to reduce measurement variation caused by temperature changes.

Based on the set point entered by the user, the controller can operate relay outputs for control actions such as dosing, alarm, flushing, water rejection, valve operation or process interlock. The analog output can be connected to PLC, SCADA, recorder or automation system for continuous monitoring and data logging.

C. Why It Is Used

The RTM-ANL-CTDS-CONT-144 is used to continuously monitor and control conductivity and TDS levels in water and liquid processes. Conductivity and TDS measurement helps identify the level of dissolved salts, minerals and ionic contamination in water.

It is used because manual water testing is not always practical for continuous industrial operations. Online conductivity and TDS monitoring helps operators maintain water quality, avoid process variation, protect equipment and control treatment systems automatically.

This controller is useful for:

1. Continuous conductivity and TDS monitoring
2. Dual point water quality measurement from one controller
3. Automatic relay-based control for alarms and process action
4. PLC and automation integration through analog output
5. Maintaining water quality in RO, DM, process water and treatment systems
6. Reducing manual testing dependency
7. Preventing high TDS or high conductivity water from entering sensitive processes

D. Suitable Buyers

The RTM-ANL-CTDS-CONT-144 is suitable for buyers who need online water quality measurement and control in industrial or commercial applications.

Suitable buyers include:

1. Water treatment plant manufacturers
2. RO plant and DM plant suppliers
3. Pharmaceutical water system integrators
4. Chemical process industries
5. Food and beverage plants
6. Boiler and cooling tower maintenance teams
7. Effluent treatment plant and sewage treatment plant operators
8. Process automation companies
9. Panel builders and system integrators
10. OEM machine manufacturers
11. Industrial maintenance departments
12. Laboratories and quality control departments

FAQ

1. What is RTM-ANL-CTDS-CONT-144 used for?
RTM-ANL-CTDS-CONT-144 is used for online conductivity and TDS measurement in water and process liquid applications. It helps monitor water quality and control process actions through relay and analog outputs.

2. Is RTM-ANL-CTDS-CONT-144 a dual channel controller?
Yes, RTM-ANL-CTDS-CONT-144 is a dual channel Conductivity and TDS Controller. It is suitable for monitoring two conductivity or TDS measurement points from one controller.

3. What is the size of RTM-ANL-CTDS-CONT-144?
The controller has a 144 x 144 x 85 mm body size and a 142 x 142 mm panel cutout size.

4. Does this controller have relay output?
Yes, the catalogue shows relay outputs for the RTM-ANL-CTDS-CONT-144 model. Relay output can be used for alarm, dosing control, valve control or process interlock.

5. Does it support 4 to 20 mA output?
Yes, the RTM-ANL-CTDS-CONT-144 supports 4 to 20 mA analog outputs, which can be connected to PLC, SCADA, recorder or automation systems.

6. Can this controller measure both conductivity and TDS?
Yes, it is designed as a Conductivity and TDS Analyzer Controller. It can be used for conductivity measurement and TDS indication depending on configuration and selected range.

7. What type of sensor is used with this controller?
It is used with conductivity sensor cells. RTM conductivity sensors are available with different cell constants such as 0.01K, 0.1K, 1K and 10K, depending on the measurement range and application.

8. What is automatic temperature compensation?
Automatic temperature compensation helps adjust the conductivity reading according to temperature changes. This improves measurement stability because conductivity values can change with liquid temperature.

9. Where can RTM-ANL-CTDS-CONT-144 be installed?
It can be installed in industrial panels for RO plants, DM plants, water treatment systems, process water lines, boiler water systems, cooling towers and other water quality monitoring applications.

10. Who should buy this product?
This product is suitable for OEMs, panel builders, water treatment companies, plant maintenance teams, automation engineers and industries that need reliable online conductivity and TDS control.