Endress+Hauser Liquiline CM42B Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Endress+Hauser Manuals
  4. Transmitter
  5. Liquiline CM42B
  6. Operating instructions manual
Endress+Hauser Liquiline CM42B Operating Instructions Manual

Endress+Hauser Liquiline CM42B Operating Instructions Manual

Two-wire transmitter field device measurement with digital or analog sensors
Hide thumbs Also See for Liquiline CM42B:
Table of Contents

Advertisement

Quick Links

Download this manual
BA02380C/07/EN/01.25-00
71695529
2025-01-01
Products
Operating Instructions
Liquiline CM42B
Two-wire transmitter
Field device
Measurement with digital or analog sensors
Solutions
Services

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Liquiline CM42B and is the answer not in the manual?

Questions and answers

Related Manuals for Endress+Hauser Liquiline CM42B

Summary of Contents for Endress+Hauser Liquiline CM42B

  • Page 1 Products Solutions Services BA02380C/07/EN/01.25-00 71695529 2025-01-01 Operating Instructions Liquiline CM42B Two-wire transmitter Field device Measurement with digital or analog sensors...

  • Page 3: Table Of Contents

    Liquiline CM42B Table of contents Table of contents Time and date ......52 About this document ....4 Configuring the operating language .

  • Page 4: About This Document

    About this document Liquiline CM42B About this document Warnings Structure of information Meaning This symbol alerts you to a dangerous situation. DANGER Failure to avoid the dangerous situation will result in a fatal or serious Causes (/consequences) injury. If necessary, Consequences of non-compliance (if applicable) ‣...

  • Page 5: Basic Safety Instructions

    Liquiline CM42B Basic safety instructions Basic safety instructions Requirements for personnel • Installation, commissioning, operation and maintenance of the measuring system may be carried out only by specially trained technical personnel. • The technical personnel must be authorized by the plant operator to carry out the specified activities.

  • Page 6: Operational Safety

    Basic safety instructions Liquiline CM42B Operational safety Before commissioning the entire measuring point: 1. Verify that all connections are correct. 2. Ensure that electrical cables and hose connections are undamaged. Procedure for damaged products: 1. Do not operate damaged products, and protect them against unintentional operation.

  • Page 7: Product Description

    Liquiline CM42B Product description Product description Product design 3.1.1 Housing closed A0056194  1 Exterior view Display Navigator Soft keys, assignment depends on menu A0056846  2 Exterior view Connections for cable glands Eyelet for security seal Eyelet for Tagging (TAG)
  • Page 8 Product description Liquiline CM42B 3.1.2 Housing open Design of Memosens sensors A0054757 Display cable Memosens input Current output 1: 4 to 20 mA, passive/optional HART Current output 2 (optional):4 to 20 mA, passive Cable mounting rail Internal ground cable, wired at the factory...

  • Page 9: Measuring Parameters

    Liquiline CM42B Product description 3.1.3 Measuring parameters Depending on the order, the transmitter is designed for digital Memosens sensors or for analog sensors. A transmitter for analog sensors can be reconfigured to Memosens. This requires an activation code and the analog input module must be removed.

  • Page 10: Incoming Acceptance And Product

    • Safety information and warnings • Ex markings • Certification information • Warnings ‣ Compare the information on the nameplate with the order. 4.2.2 Identifying the product Manufacturer address Endress+Hauser Conducta GmbH+Co. KG Dieselstraße 24 70839 Gerlingen Germany Product page www.endress.com/CM42B Endress+Hauser...

  • Page 11: Scope Of Delivery

     A new window opens. Here you fill information pertaining to your device, including the product documentation. Scope of delivery The scope of delivery includes: • Liquiline CM42B • Cable glands depending on order • Field device mounting plate • Brief Operating Instructions •...

  • Page 12: Mounting

    Mounting Liquiline CM42B Mounting Mounting requirements 5.1.1 Dimensions Ø9 (0.35) 108 (4.25) 110 (4.33) 148 (5.83) A0053890  3 Dimensions of field housing in mm (in) Endress+Hauser...
  • Page 13 Liquiline CM42B Mounting 5.1.2 Mounting plate (included in the scope of delivery) 4x Ø 6.5 (0.26) 80 (3.15) 100 (3.94) A0053888  4 Dimensions of mounting plate in mm (in) 5.1.3 Weather protection cover (optional) NOTICE Effect of climatic conditions (rain, snow, direct sunlight etc.) Impaired operation to complete transmitter failure are possible! ‣...

  • Page 14: Mounting The Device

    Mounting Liquiline CM42B Mounting the device 5.2.1 Wall mounting 80 (3.15) ≥120 (4.72) ≥200 (7.87) A0053942  6 Mounting clearances in mm (in) A0053945  7 Wall mounting Wall Four drill holes Mounting plate Screws (not included in the scope of delivery) The size of the drill holes depends on the mounting material used.

  • Page 15: Post Mounting

    Liquiline CM42B Mounting A0053943  8 Mounting plate mounted on wall A0053944  9 Attach the device and click it into place 1. Place the device on the mounting plate. 2. Slide the device downwards in the guide on the mounting rail until it clicks into place.
  • Page 16 Mounting Liquiline CM42B Weather protection cover (optional) Spring washers and nuts (post mounting kit) Post mounting plate (post mounting kit) Pipe or post (circular/square) Spring washers and nuts (post mounting kit) Mounting plate Pipe clamps (post mounting kit) Screws (post mounting kit) A0053916 ...

  • Page 17: Rail Mounting

    Liquiline CM42B Mounting 5.2.3 Rail mounting You require the post mounting kit (optional) to mount the unit on a pipe, post or railing (square or circular, clamping range 20 to 61 mm (0.79 to 2.40")). A0012668  13 Rail mounting...

  • Page 18: Post-Mounting Check

    Mounting Liquiline CM42B 5.2.4 Disassembly (for conversion, cleaning, etc.) CAUTION Risk of injury and damage to the device if the device is dropped ‣ When pushing the housing out of the holder, secure the housing to prevent it from falling.

  • Page 19: Electrical Connection

    Installation in hazardous areas Installation in hazardous area Ex ia Ga 4 … 20 mA A0056644 Hazardous area version of Liquiline CM42B Control station 4 to 20 mA signal line/optional HART Ex ia active barrier Supply and signal circuit Ex ia (4 to 20 mA)

  • Page 20: Connecting The Device

    Electrical connection Liquiline CM42B Connecting the device 6.2.1 Opening the housing NOTICE Cordless screwdriver, screw driller, pointed or sharp tools The use of a cordless screwdriver or screw driller can cause damage to the threads and impair the leak-tightness of the housing. If unsuitable tools are used, they can scratch the housing or damage the seal, and thus have a negative impact on the leak-tightness of the housing.

  • Page 21: Connecting The Cable Shield

    Liquiline CM42B Electrical connection 6.2.2 Connecting the cable shield The descriptions of each of the connections specify which cables must be shielded. Only use terminated original cables where possible. Clamping range of grounding clamps: 4 to 11 mm (0.16 to 0.43 in) Cable sample (does not necessarily correspond to the original cable supplied) ...

  • Page 22: Cable Terminals

    Electrical connection Liquiline CM42B 8. Connect cable cores as per the wiring diagram. 9. Tighten the cable gland with the required torque. 6.2.3 Cable terminals Press the screwdriver against the clip (opens the terminal). Insert the cable until the limit stop.
  • Page 23 Liquiline CM42B Electrical connection A0055833 1. Remove the sealing plug. 2. Screw in the cable gland. Tightening torque 2.5 to 3 Nm. Cable glands with G1/2 thread or NPT1/2 thread The cable glands and adapters are included in the delivery in accordance with the order.
  • Page 24 Electrical connection Liquiline CM42B A0057259 Tighten the cable gland again after the cable has been fed through. Make sure that the sealing insert (1) does not protrude from the pressure screw (2). Feed through only one cable per cable gland.
  • Page 25 Liquiline CM42B Electrical connection A0057685 Example: Three conduit adapters mounted at positions 2, 3 and 4 Example: Two conduit adapters mounted at positions 2 and 4 A0057686 Remove the sealing plug. 2. Remove the screw, securing disk and retaining plate from the potential equalization connection.
  • Page 26 Electrical connection Liquiline CM42B A0057687 Screw in the conduit adapter. Tightening torque 2.5 to 3 Nm. A0057690 Fit the conduit adapter support on the adapters or sealing plugs. Where necessary, align the adapters or sealing plugs by turning them. 5. Bolt the conduit adapter support to the potential equalization connection using the screw and securing disk.

  • Page 27: Connecting The Potential Equalization

    Liquiline CM42B Electrical connection 6.2.6 Connecting the potential equalization Connecting the potential equalization – Installation without a conduit ‣ A0055870  21 Potential equalization connection Attach the potential equalization connection of the housing to the earth or to the potential equalization system with a separate line. Cable cross-section max.
  • Page 28 Electrical connection Liquiline CM42B Connecting the potential equalization for conduit installation ‣ A0057719  22 Conduit adapter support Connections for potential equalization A0057705  23 Potential equalization connection for conduit mounting For conduit mounting, connect the ground cable to a potential equalization connection of the conduit adapter support.
  • Page 29 Liquiline CM42B Electrical connection 4...20 mA 4...20 mA 4...20 mA/HART 4...20 mA/HART A0054900  24 Connection of 1 current output 4...20 mA/ HART – A0054914  25 Wiring diagram: 1 current output 4...20 mA /(HART) 4...20 mA/(HART) + 4...20 mA + 4...20 mA...

  • Page 30: Connecting The Sensor

    Electrical connection Liquiline CM42B 4...20 mA 4...20 mA 4...20 mA/(HART) 4...20 mA/(HART) A0054902  27 Connection of 2 current outputs via 2 cables 4...20 mA/ HART 4 ... 20 mA – – A0054915  28 Wiring diagram: 2 current outputs 6.2.8...
  • Page 31 Liquiline CM42B Electrical connection Explanation of color codes in the following illustrations: Color code Meaning Black Brown Blue Green Orange Yellow Violet White Transparent Braided shield/silver Memosens sensors Connecting sensors with Memosens plug-in head (via Memosens cable) and sensors with a fixed cable and Memosens protocol ‣...
  • Page 32 Electrical connection Liquiline CM42B Analog conductivity sensors (inductive) 17 18 20 11 13 12 16 15 17 18 20 11 13 12 16 15 Cond. I Sensor Sensor A0055787  30 Device view Device Cable Sensor A0055796  31 Wiring diagram CLS50...
  • Page 33 Liquiline CM42B Electrical connection Analog conductivity sensors (conductive) ‣ 11 13 12 20 19 Cond. C 11 1312 20 19 d.n.c. d.n.c. Sensor d.n.c. Sensor d.n.c. A0055786  33 Device view Device d.n.c. Cable d.n.c. Sensor A0055795  34 Wiring diagram Connect the sensor as shown in the illustration.
  • Page 34 Electrical connection Liquiline CM42B 1. Completely remove the semi-conductive polymer layer (3) up to the end of the shield. 2. Ensure that the inner insulation (4) of the coaxial cable is not in contact with other components. Ensure there is an air gap around all components; otherwise, measurement errors may occur.
  • Page 35 Liquiline CM42B Electrical connection Connecting pH glass electrodes without PML (asymmetrical) ‣ 11 13 12 22 20 22 16 18 14 17 11 13 12 22 20 22 16 18 14 17 pH/ORP d.n.c. d.n.c. d.n.c. Sensor d.n.c. Sensor A0055760 ...
  • Page 36 Electrical connection Liquiline CM42B Connecting pH single electrodes with PML (symmetrical) and separate reference electrode and separate temperature sensor ‣ 11 13 12 22 20 22 16 18 14 17 11 13 12 22 20 22 16 18 14 17 pH/ORP ϑ...
  • Page 37 Liquiline CM42B Electrical connection Connecting pH single electrodes without PML (asymmetrical) and separate reference electrode and separate temperature sensor ‣ 11 13 12 22 20 22 16 18 14 17 11 13 12 22 20 22 16 18 14 17 pH/ORP d.n.c.
  • Page 38 Electrical connection Liquiline CM42B Connecting pH enamel electrodes Pfaudler electrode, absolute (type 03/type 04) with PML (symmetrical) with LEMOSA cable 11 13 12 22 20 22 16 18 14 17 11 13 12 22 20 22 16 18 14 17...

  • Page 39: Ensuring The Degree Of Protection

    Liquiline CM42B Electrical connection Pfaudler electrode, relative (type 18/type 40) with PML (symmetrical) with LEMOSA cable 11 13 12 22 20 22 16 18 14 17 11 13 12 22 20 22 16 18 14 17 pH/ORP Sensor Sensor A0056295 Connect the sensor as shown in the illustration.

  • Page 40: Post-Connection Check

    Electrical connection Liquiline CM42B • Unsuitable cable diameters are used for the cable glands • The housing cover is not properly secured (danger of moisture entering due to inadequate sealing) • Cables/cable ends are loose or insufficiently tightened • Cable shields not grounded using grounding clamp in accordance with the instructions •...

  • Page 41: Operation Options

    Liquiline CM42B Operation options Operation options Overview of operation options Operation and settings via: • Operating elements on the device • SmartBlue app (does not support the full range of functions) • Control station (via HART) Access to operating menu via onsite display 7.2.1...

  • Page 42: Structure Of The Display

    Operation options Liquiline CM42B 7.2.3 Structure of the display EH_CM42B_0123456789 14:00:20 2024-08-20 C 1: pH 7.00 Current Output 1 12.0 MENU DIAG A0056328  45 Structure of the display: Start screen (device with one current output) Device name or menu path...

  • Page 43: Navigating Through The Display

    Liquiline CM42B Operation options 7.2.4 Navigating through the display Measured values EH_CM42B_0123456789 EH_CM42B_0123456789 14:00:20 2024-08-20 14:00:20 2024-08-20 C 1: pH C 1: pH 7.00 7.00 Current Output 1 Current Output 1 12.0 12.0 MENU DIAG EH_CM42B_0123456789 EH_CM42B_0123456789 14:00:20 2024-08-20 14:00:20...
  • Page 44 Operation options Liquiline CM42B Current output EH_CM42B_0123456789 EH_CM42B_0123456789 14:00:20 2024-08-20 14:00:20 2024-08-20 C 1: pH C 1: pH 7.00 7.00 Current Output 1 Current Output 1 12.0 12.0 MENU DIAG EH_CM42B_0123456789 EH_CM42B_0123456789 14:00:20 2024-08-20 2024-08-20 Current output 1 C 1: pH 7.00...
  • Page 45 Liquiline CM42B Operation options 7.2.5 Operation concept menus EH_CM42B_0123456789 14:00:20 2024-08-20 Language English C 1: pH ► Guidance 7.00 ► Diagnostics ► Application Current Output 1 ► System 12.0 MENU DIAG Menu/Language Menu/Language English Language English ► Guidance Hrvatski Čeština ►...

  • Page 46: Access To The Operating Menu Via The Operating Tool

    Operation options Liquiline CM42B Access to the operating menu via the operating tool 7.3.1 Access to the operating menu via the SmartBlue app The SmartBlue app is available for download from the Google Play Store for Android devices and from the Apple App Store for iOS devices.
  • Page 47 Liquiline CM42B Operation options 7.3.3 Functions via the SmartBlue app The SmartBlue app supports the following functions: • Firmware update • User management • Export of information for the service Endress+Hauser...

  • Page 48: System Integration

    System integration Liquiline CM42B System integration Integrating the measuring instrument into the system Interfaces for measured value transmission (depending on order): • 4 to 20 mA current output (passive) • HART 8.1.1 Current output Depending on the order, the device has 1 or 2 current outputs.
  • Page 49 Liquiline CM42B System integration Follow the steps below to integrate the device into the system for this purpose: 1. Connect the HART modem or HART handheld terminal to current output 1 (communication load 250–500 Ohm). 2. Establish a connection via the HART device.

  • Page 50: Commissioning

    Commissioning Liquiline CM42B Commissioning Preliminaries ‣ Connect the device.  The device starts and displays the measured value. Bluetooth® must be enabled on the mobile device for operation via the SmartBlue app. Post-installation and function check Incorrect connection, incorrect supply voltage Safety risks for staff and device malfunctions! ‣...
  • Page 51 Liquiline CM42B Commissioning Initial access data: • Username: admin • Password: serial number of the device It is advisable to change the username and password after logging in for the first time. You can drag additional information (e.g. main menu) onto the screen by swiping across the screen.

  • Page 52: Time And Date

    Commissioning Liquiline CM42B Time and date ‣ Configure the time and date under the following path: Menu/System/Date and Time When using the SmartBlue app, the date and time can also be automatically transferred from the mobile device. Configuring the operating language ‣...

  • Page 53: Adapting The Measuring Instrument To The Process Conditions

    Liquiline CM42B Operation Operation 10.1 Reading the measured values See →  41 10.2 Adapting the measuring instrument to the process conditions 10.2.1 Calibrating the sensor Different calibration methods are available depending on the measuring parameter and connected sensor. 1. Navigate to the path: Menu/Guidance/Calibration or press the CAL softkey.

  • Page 54: Cleaning In Place (Cip)

    Operation Liquiline CM42B Calibration methods Different calibration methods are available depending on the measuring parameter and the sensor used. Configuration options: Select the calibration methods that are displayed under Menu/Guidance/Calibration ‣ Navigate to the path: Menu/Application/Sensor/Calibration settings/Calibration methods Further calibration settings Further calibration settings are available depending on the measuring parameter and connected sensor.

  • Page 55: Settings Of The Current Output

    Liquiline CM42B Operation Configuration options: • Configure parameters for sterilization detection • Enable/disable sterilization monitoring (sterilization cycle counter) • Configure warning limit and diagnostic behavior for sterilization monitoring. ‣ Navigate to the path: Menu/Application/Sensor/Sterilization 10.3 Settings of the current output Configuration options: •...

  • Page 56: Diagnosis And Troubleshooting

    Diagnosis and troubleshooting Liquiline CM42B Diagnosis and troubleshooting 11.1 General troubleshooting The transmitter continuously monitors its functions itself. If a diagnostic message occurs, the display alternates between the diagnostic message and the measured value in the measuring mode . In the DIAG/Diagnostics list menu, you can find more detailed information on the current diagnostic messages displayed.

  • Page 57: Adapting The Diagnostic Information

    Liquiline CM42B Diagnosis and troubleshooting 11.5 Adapting the diagnostic information Configuration options: • Specify the error category for the diagnostic messages as per NAMUR NE 107 (F, M, C, • Specify the diagnostic behavior for the diagnostic messages. ‣ Navigate to the path: Menu/Diagnostics/Diagnostics settings 11.6...

  • Page 58: Maintenance

    Maintenance Liquiline CM42B Maintenance The maintenance of the measuring point comprises: • Calibration • Cleaning the transmitter, assembly and sensor • Checking cables and connections. WARNING Process pressure and temperature, contamination Risk of serious or fatal injury ‣ If the sensor has to be removed during maintenance work, avoid dangers posed by pressure, temperature and contamination.

  • Page 59: Repair

    Liquiline CM42B Repair Repair 13.1 General information ‣ Only use spare parts from Endress+Hauser to guarantee the safe and stable functioning of the device. Detailed information on the spare parts is available at: www.endress.com/device-viewer 13.2 Return The product must be returned if repairs or a factory calibration are required, or if the wrong product was ordered or delivered.
  • Page 60 Repair Liquiline CM42B BASE2-E Press together the securing clips of the base module and pull them out of the base module. Release the lithium button cell from the backplane and dispose of it according to local battery regulations. If required by the Directive 2012/19/EU on waste electrical and electronic equipment (WEEE), the product is marked with the depicted symbol in order to minimize the disposal of WEEE as unsorted municipal waste.

  • Page 61: Accessories

    Liquiline CM42B Accessories Accessories The latest list of accessories, all compatible sensors and activation codes is provided on the product page: www.endress.com/CM42B Endress+Hauser...

  • Page 62: Technical Data

    • Cable length max. 100 m (330 ft) pH/ORP analog input Cable specifications Analog pH sensors and analog ORP sensors from Endress+Hauser • Recommended cable length max. 30 m (98 ft) • For cable types, see the documentation of the connected sensor Pfaudler electrodes type 03/04, type 18, type 40, pH Reiner Cable length max.

  • Page 63: Output

    Liquiline CM42B Technical data Analog input of conductivity, measured conductively Cable specifications • Cable length max. 15 m (49.2 ft) • For cable types, see the documentation of the connected sensor Temperature sensors • Pt100 • Pt1000 15.2 Output Output signal...

  • Page 64: Protocol-Specific Data

    Technical data Liquiline CM42B R [Ω] 1000 U [V] A0055514 Supply voltage [V] Load [Ω] Max. load with configured failure current 23 mA Max. load with configured failure current 21.5 mA Max. load with configured failure current < 3.6 mA Output span 3.6 to 23 mA...

  • Page 65: Performance Characteristics

    Liquiline CM42B Technical data • For supply voltage, see characteristic curve • Max. supply voltage: 30 V DC U [V] 15.5 I [mA] A0055525  50 Min. supply voltage at the transmitter depending on the output current Supply voltage [V DC]...

  • Page 66: Environment

    Technical data Liquiline CM42B 15.6 Environment Ambient temperature Non-Ex version -30 to 70 °C (-20 to 160 °F) For Ex versions, please refer to the relevant safety instructions (XA) on the online product pages. Storage temperature -40 to +80 °C (-40 to 176 °F)

  • Page 67: Index

    Liquiline CM42B Index Index Accessories HART ......48, 55, 64 Communication-specific ....61 Hold .
  • Page 68 Index Liquiline CM42B Simulation ......57 Guidance Warnings ........4 Calibration .
  • Page 72 *71695529* 71695529 www.addresses.endress.com...

Table of Contents