Liquisys M CPM253
Technical Data
CompareORP / Redox
| Measuring Principle | Sensor ORP / Redox |
| Application | Water, waste water, process |
| Characteristic | 4-wire transmitter |
| Design | pH/ORP-field housing made of PC/ABS |
| Material | PC/ABS-housing |
| Dimension | 247x170x115mm |
| Temperature sensor | Display and current output |
| Ex certification | No |
| Ingress protection | No |
| Input | One-channel-transmitter |
| Output / communication | 0/4-20mA, Hart, Profibus. |
| Certificates, declarations and approvals | CSA Gen. Purpose. |
pH
| Measuring Principle | Potentiometric |
| Application | Water, waste water, process |
| Characteristic | 4-wire transmitter |
| Design | pH/ORP field housing made of PC/ABS |
| Material | PC/ABS housing |
| Dimension | 247x170x115mm (9.63x6.63x4.48inch) |
| Temperature sensor | Display and current output |
| Ex certification | No |
| Ingress protection | No |
| Input | One-channel-transmitter |
| Output / communication | 0/4-20 mA, Hart, Profibus |
| Certificates, declarations and approvals | CSA Gen. purpose |
The Liquisys CPM253 is a standard pH/ORP transmitter for analog and digital Memosens sensors. Thanks to continuous plausibility checks and checks of the measuring process and the sensor, it increases operating safety. Whichever hardware and software modules are selected, e.g. relays and bus communication, it adapts perfectly to the measuring task. It also allows the transmitter to be upgraded at any time, and its simple menus and factory calibration make configuration and operation fast and convenient.
Benefits
Higher operating safety: continuous process check system, user-defined alarm settings and an optimized Memosens interface for reliable sensor connection.
Reliable self-monitoring: sensor check system for pH electrode calibration and calibration plausibility check.
Easy to operate and maintain: intuitive user interface, precalibrated Memosens sensors with hot plug support and direct manual contact control.
Reduced maintenance effort: automatic cleaning triggered by alarms or limit switches (using Chemoclean).
Suitable for a wide range of applications: various extension options, such as P(ID) controllers, timers, etc., for flexible use in all processes.
Application areas
The Liquisys CPM253 transmitter can be used with all pH/ORP glass electrodes and ISFET electrodes in non-hazardous areas, and is suitable for the following industries and applications:
Chemical
Food & Beverage
Power & Energy
Water and wastewater
Primary raw materials and metallurgy
The Liquisys CPM253 has the following protocols and interfaces:
0/4...20 mA
HART
PROFIBUS DP
PROFIBUS PA
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Technical information
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Source: public information from the Endress+Hauser website
Case Studies
Municipal Wastewater Treatment — Wastewater Treatment Plant · pH Application Case
Project Background
Municipal Wastewater Treatment customers at the Wastewater Treatment Plant stage have long faced the challenge of insufficient accuracy in effluent quality monitoring and instruments prone to contamination causing data drift, affecting compliance discharge, placing higher demands on the stability and measurement accuracy of pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Municipal Wastewater Treatment conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Food & Beverage — Food Production Line · pH Application Case
Project Background
Food & Beverage customers at the Food Production Line stage have long faced the challenge of high hygienic measurement requirements, with inline instruments needing to withstand CIP/SIP cleaning while maintaining stable accuracy, placing higher demands on the stability and measurement accuracy of pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Food & Beverage conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Chemical & Pharmaceutical — Reactors and Storage Tanks · pH Application Case
Project Background
Chemical & Pharmaceutical customers at the Reactors and Storage Tanks stage have long faced the challenge of highly corrosive media and complex conditions, requiring corrosion-resistant and explosion-proof instruments, placing higher demands on the stability and measurement accuracy of pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Chemical & Pharmaceutical conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
Power & Energy — Power Plant Boiler and Turbine · pH Application Case
Project Background
Power & Energy customers at the Power Plant Boiler and Turbine stage have long faced the challenge of unstable measurement under high temperature and pressure, with high maintenance and downtime costs, placing higher demands on the stability and measurement accuracy of pH.
Solution
Based on the on-site conditions, the Ainstru technical team selected suitable pH for the customer and delivered one-stop service covering selection, installation, commissioning and tuning.
Results
- Measurement accuracy and response speed significantly improved, with stable and reliable data;
- Instruments adapt to complex Power & Energy conditions, greatly reducing maintenance;
- Helping customers achieve continuous online monitoring and cost reduction, highly recognized by customers.
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