Technical Data
CompareConductivity
| Measuring Principle | Conductive |
| Application | Chemical processes, pharmaceuticals industry, food and beverage technology, applications in hazardous areas |
| Characteristic | Liquiline CM42B is a modular two-wire transmitter for all areas of process engineering |
| Measuring principle | Memosens und analog Parameter; DIN-rail device Memosens only |
| Design | Depending on the ordered version, Liquiline CM42B has one or two analog current outputs or it can be connected to fieldbus with HART protocol |
| Material | Plastic or stainless steel housing with EPDM sealings or DIN-rail housing for cabinet installations with separate display |
| Dimension | Plastic/stainless steel housing: 148 x 155 x 152 mm; 5.83 x 6.10 x 6.00 inches DIN-rail housing: 139.5 x 163.7 x 75.1 mm; 5.49 x 6.44 x 2.96 inches |
| Temperature sensor | Applicable sensors Pt100, Pt1000, NTC 30K |
| Ex certification | ATEX, IECEx, C/US, CHN-Ex |
| Ingress protection | Field housing: IP66/67 (IEC 60529) NEMA 4X (UL 50E) DIN-rail housing: IP20 |
| Input | One channel transmitter for Memosens and analog (pH, ORP, conductivity) |
| Output / communication | 4 to 20 mA, HART (optional), additional second output possible; HART communication, also later activatable |
ORP / Redox
| Measuring Principle | Sensor ORP / Redox |
| Application | Chemical processes, pharmaceuticals industry, food and beverage technology, applications in hazardous areas |
| Characteristic | Liquiline CM42B is a modular two-wire transmitter for all areas of process engineering |
| Measuring principle | Memosens und analog Parameter; DIN-rail device Memosens only |
| Design | Depending on the ordered version, Liquiline CM42B has one or two analog current outputs or it can be connected to fieldbus with HART protocol |
| Material | Plastic or stainless steel housing with EPDM sealings or DIN-rail housing for cabinet installations with separate display |
| Dimension | Plastic/stainless steel housing: 148 x 155 x 152 mm; 5.83 x 6.10 x 6.00 inches DIN-rail housing: 139.5 x 163.7 x 75.1 mm; 5.49 x 6.44 x 2.96 inches |
| Temperature sensor | Applicable sensors Pt100, Pt1000, NTC 30K |
| Ex certification | ATEX, IECEx, C/US, CHN-Ex |
| Ingress protection | Field housing: IP66/67 (IEC 60529) NEMA 4X (UL 50E) DIN-rail housing: IP20 |
| Input | One channel transmitter for Memosens and analog (pH, ORP, conductivity) |
| Output / communication | 4 to 20 mA, HART (optional), additional second output possible; HART communication, also later activatable |
Oxygen
| Measuring Principle | Amperometric oxygen measurement |
| Application | Chemical processes, pharmaceuticals industry, food and beverage technology, applications in hazardous areas |
| Characteristic | Liquiline CM42B is a modular two-wire transmitter for all areas of process engineering |
| Measuring principle | Memosens und analog Parameter; DIN-rail device Memosens only |
| Design | Depending on the ordered version, Liquiline CM42B has one or two analog current outputs or it can be connected to fieldbus with HART protocol |
| Material | Plastic or stainless steel housing with EPDM sealings or DIN-rail housing for cabinet installations with separate display |
| Dimension | Plastic/stainless steel housing: 148 x 155 x 152 mm; 5.83 x 6.10 x 6.00 inches DIN-rail housing: 139.5 x 163.7 x 75.1 mm; 5.49 x 6.44 x 2.96 inches |
| Temperature sensor | Applicable sensors Pt100, Pt1000, NTC 30K |
| Ex certification | ATEX, IECEx, C/US, CHN-Ex |
| Ingress protection | Field housing: IP66/67 (IEC 60529) NEMA 4X (UL 50E) DIN-rail housing: IP20 |
| Input | One channel transmitter for Memosens and analog (pH, ORP, conductivity) |
| Output / communication | 4 to 20 mA, HART (optional), additional second output possible; HART communication, also later activatable |
pH
| Measuring Principle | Potentiometric |
| Application | Chemical processes, pharmaceuticals industry, food and beverage technology, applications in hazardous areas |
| Characteristic | Liquiline CM42B is a modular two-wire transmitter for all areas of process engineering |
| Measuring principle | Memosens und analog Parameter; DIN-rail device Memosens only |
| Design | Depending on the ordered version, Liquiline CM42B has one or two analog current outputs or it can be connected to fieldbus with HART protocol |
| Material | Plastic or stainless steel housing with EPDM sealings or DIN-rail housing for cabinet installations with separate display |
| Dimension | Plastic/stainless steel housing: 148 x 155 x 152 mm; 5.83 x 6.10 x 6.00 inches DIN-rail housing: 139.5 x 163.7 x 75.1 mm; 5.49 x 6.44 x 2.96 inches" |
| Temperature sensor | Applicable sensors Pt100, Pt1000, NTC 30K |
| Ex certification | ATEX, IECEx, C/US, CHN-Ex |
| Ingress protection | Field housing: IP66/67 (IEC 60529) NEMA 4X (UL 50E) DIN-rail housing: IP20 |
| Input | One channel transmitter for Memosens and analog (pH, ORP, conductivity) |
| Output / communication | 4 to 20 mA, HART (optional), additional second output possible; HART communication, also later activatable |
CM42B single-channel or dual-channel transmitter (with one reference connection), two-wire field device for use in hazardous and non-hazardous areas of the chemical, life sciences, and food & beverage industries
Advantages
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Easy device operation and configuration: Designed around an intuitive operating concept, field instrument commissioning and configuration are quick and easy. With Bluetooth wireless connectivity and the SmartBlue app, you can view complete measuring point information on a smartphone or tablet.
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Innovative safety and security: Bluetooth wireless connectivity is based on a unique security concept that prevents unauthorized access and assigns access rights according to user roles. Safety inside and out, benefiting customers.
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Meets the requirements of different operating conditions: Transmitter housings are available in various materials: stainless steel, plastic or panel-mounted housings. Select the right version, integrate it into skids, or use it in hygienic applications or hazardous areas.
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Higher process safety and shorter production interruptions: Memosens digital technology enables safe digital data transmission and high availability of measured values. Precalibrated sensors are plug-and-play, reducing the production downtime required for sensor calibration.
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Seamless system integration: The Liquiline CM42B uses HCF-certified HART communication for easy and safe integration into process control systems.
Field of application
The Liquiline CM42B reliably outputs high-precision pH, ORP, conductivity and dissolved oxygen measured values under demanding conditions. Intuitive on-site operation and device configuration with a Bluetooth interface; by installing the SmartBlue app, detailed measuring point information can be viewed on mobile devices. Based on a unique security concept, Bluetooth wireless communication is safe and reliable, without risk of data leakage or loss. Various device versions are available to flexibly match diverse installations.
The Liquiline CM42B transmitter can be used under demanding conditions in the following industries:
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Chemical
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Food & beverage
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Life sciences
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Power & energy
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Oil and gas
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Mining, minerals processing and metallurgy
The transmitter has numerous international explosion protection certifications, such as IECEx, ATEX, C/US IS Cl. I div 1 and China explosion protection certification, and can be used in hazardous areas.
Spare Parts & Accessories 14
14 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71693056 | Kit CM42B Cable management moduleModule cover for attaching cables, shielding and grounding connections | Details |
| 71667901 | Kit CM42B Base module VICO1Base module with memosens input, current outputs and display socket | Details |
| 71667903 | Kit CM42B Input analog CD cont. VSLC1Input module for analog contacting conductivity sensors | Details |
| 71667904 | Kit CM42B analog input CD ind. VSLI1Input module for analog inductive conductivity sensors | Details |
| 71667905 | Kit CM42B Input analog pH/ORP VSPH1Input module for analog pH or redox sensors | Details |
| XPC0028- | CM42B Mainboard KitYou get the Mainboard of the CM42B, either for a specific serial number or without serial number assignment. | Enquire |
| XPC0029- | Kit CM42B Cover + DisplayYou get the Cover of the CM42B including Display, Hinge and cable or the external Display including mounting plate. | Enquire |
| XPC0034- | Kit CM42B Activation codes | Enquire |
| 71096920 | Pipe mounting assembly for CM442/CM444/CM448shorttext historie Pipe mounting kit CM442/CM444/CM448 | Details |
| CYY101- | Sunshade CYY101Application: CYH101 assembly holder. | Enquire |
| 71520947 | IEC 61406 Stainless Steel TAG | Details |
| 71520949 | IEC61406 stainless steel + NFC tag | Details |
| 71520950 | IEC 61406 QR code tag plate, stainless steel | Details |
| 71520951 | IEC61406 stainless steel+NFC, stainless steel | Details |
Configurator / Comparison
Source:Endress+Hauserpublic information from the website
Measuring principle video
Click to playManuals & Documents 6
All documents for this modelCase Studies
Municipal Wastewater Treatment · multiparameter — Application Case
Application Context
the inlet, biological and outlet stages of a municipal plant is a typical Municipal Wastewater Treatment duty. The project started from multiparameter, focusing on monitoring several water parameters at one measuring point.
Process Constraints
effluent parameters drift and probes foul with sludge and biofilm, and high solids and corrosive fractions, with large diurnal flow swings only amplify it. The multiparameter specification must therefore cover configured by parameter set, mounting and cleaning needs.
Delivery Approach
Delivery was handled as the analyser range — selecting as part of a complete water-analysis system. Execution centred on configured by parameter set, mounting and cleaning needs, together with stable compliance with Grade 1A discharge limits and online data reporting.
Field Results
Operation shows the benefit clearly — one point replacing several single-parameter units, saving capex and upkeep, with confidence in this measuring point improving markedly.
Food & Beverage · multiparameter — Application Case
Customer Profile
The typical setting in Food & Beverage is dosing, pasteurising, filling and CIP stages. The measuring point is multiparameter; the focus is monitoring several water parameters at one measuring point.
Key Difficulties
Conditions are syrups, dairy and beverages that scale easily, under strict hygienic requirements and, on top of that, frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, which a standard configuration cannot handle for long. The design therefore starts with configured by parameter set, mounting and cleaning needs.
Implementation
The scope ran through the analyser range: selecting as part of a complete water-analysis system. Technically it hinges on configured by parameter set, mounting and cleaning needs, and on these requirements: food-safety and hygienic design per 3-A / EHEDG.
Customer Benefit
In practice this means one point replacing several single-parameter units, saving capex and upkeep, which cut the workload on the site maintenance team.
Chemical & Pharmaceutical · multiparameter — Application Case
Project Background
The project covers reactors, metering vessels and finished-product tanks. The work centres on multiparameter and the core task is monitoring several water parameters at one measuring point.
Operating Challenges
The medium and duty are characterised by highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. So multiparameter cannot be specified generically — it calls for configured by parameter set, mounting and cleaning needs.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves configured by parameter set, mounting and cleaning needs, with these requirements in view: Ex certification and GMP traceability of records.
Results
Since start-up the system has run steadily; the practical result is one point replacing several single-parameter units, saving capex and upkeep.
Power & Energy · multiparameter — Application Case
Project Overview
The site is boiler feedwater, turbine condensate and FGD/DeNOx systems. The customer wanted multiparameter properly configured on the existing plant, with the aim of monitoring several water parameters at one measuring point.
Technical Challenges
What actually causes trouble is high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. All of this means the multiparameter configuration has to involve configured by parameter set, mounting and cleaning needs.
Configuration
Supply and installation were organised through the analyser range: selecting as part of a complete water-analysis system. On site this meant configured by parameter set, mounting and cleaning needs, checked line by line against: compliance with power-industry codes and unit availability targets.
Performance
After commissioning the outcome is one point replacing several single-parameter units, saving capex and upkeep, and the readings are now used for process tuning.
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