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

Endress+Hauser Liquiline CM42B Brief Operating Instructions

Two-wire transmitter
Hide thumbs Also See for Liquiline CM42B:
Table of Contents

Advertisement

Quick Links

Download this manual
KA01730C/07/EN/01.24-00
71688789
2024-10-01
Products
Brief 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

Subscribe to Our Youtube Channel

Related Manuals for Endress+Hauser Liquiline CM42B

Summary of Contents for Endress+Hauser Liquiline CM42B

  • Page 1 Products Solutions Services KA01730C/07/EN/01.24-00 71688789 2024-10-01 Brief Operating Instructions Liquiline CM42B Two-wire transmitter Field device Measurement with digital or analog sensors...

  • Page 2: About This Document

    About this document Liquiline CM42B About this document Safety information 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 injury. Causes (/consequences) If necessary, Consequences of non- compliance (if applicable) ‣...
  • Page 3 Liquiline CM42B About this document Documentation In addition to these Brief Operating Instructions , the following manuals are available on the product pages on our website: • Operating Instructions, BA02380C • Device description • Commissioning • Operation • Device-specific diagnostics and troubleshooting •...

  • Page 4: Basic Safety Instructions

    Basic safety instructions Liquiline CM42B Basic safety instructions Requirements for the 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 5: Operational Safety

    Liquiline CM42B Basic safety instructions Electromagnetic compatibility • The product has been tested for electromagnetic compatibility in accordance with the applicable international standards for industrial applications. • The electromagnetic compatibility indicated applies only to a product that has been connected in accordance with these Operating Instructions.

  • Page 6: Product Description

    Product description Liquiline CM42B Product description Product design 3.1.1 Housing closed A0056194  1 Exterior view Display Navigator Soft keys, assignment depends on menu Endress+Hauser...
  • Page 7 Liquiline CM42B Product description A0056846  2 Exterior view Connections for cable glands Eyelet for security seal Eyelet for Tagging (TAG) Connection for potential equalization or functional ground Endress+Hauser...
  • Page 8 Product description Liquiline CM42B 3.1.2 Housing open Version for 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 Version for analog sensors (pH/ORP, inductive/conductive) A0055876 Connection area for analog sensors (different layout depending on the version) Connection of the sensors is described in →  21. 3.1.3 Measuring parameters Depending on the order, the transmitter is designed for digital Memosens sensors or for analog sensors.

  • Page 10: Incoming Acceptance And Product Identification

    • Input and output values • Safety information and warnings • Certificate information ‣ 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 • Mounting plate • Brief Operating Instructions •...

  • Page 12: Mounting Requirements

    Mounting Liquiline CM42B Mounting Mounting requirements 5.1.1 Dimensions Ø9 (0.35) 110 (4.33) 108 (4.25) 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 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 Liquiline CM42B 300 (11.8) 170 (6.69) 270 (10.6) 80 (3.15) Ø 7 (0.28) A0053889  5 Dimensions of the weather protection cover in mm (in) Endress+Hauser...

  • Page 15: Mounting The Device

    Liquiline CM42B Mounting Mounting the device 5.2.1 Wall mounting 80 (3.15) ≥120 (4.72) ≥200 (7.87) A0053942  6 Mounting clearances in mm (in) Endress+Hauser...
  • Page 16 Mounting Liquiline CM42B A0053945  7 Wall mounting Wall 4 drill holes Mounting plate Screws (not included in the scope of delivery) The size of the drill holes depends on the mounting material used. Mounting material must be provided by the customer.

  • Page 17: Post Mounting

    Liquiline CM42B Mounting A0053944  9 Attach the device and click it into place Place the device on the mounting plate. Slide the device downwards in the guide on the mounting rail until it clicks into place. 5.2.2 Post 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")).
  • Page 18 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 19: 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 20 Mounting Liquiline CM42B A0053919  15 Attach the device and click it into place Place the device on the mounting plate. Slide the device downwards in the guide on the mounting rail until it clicks into place. 5.2.4 Disassembly (for conversion, cleaning etc.)

  • Page 21: Post-Mounting Check

    Liquiline CM42B Electrical connection A0053949  17 Disassembly Remove the device towards the front. Post-mounting check Check the device for damage after installation. Check whether the device is protected against precipitation and direct sunlight (e.g. by the weather protection cover).
  • Page 22 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 23: Connecting The Device

    Liquiline CM42B Electrical connection 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 24 Electrical connection Liquiline CM42B ≤ 180° A0054851 Open the cover by a maximum of 180° (depending on the orientation). When closing the housing: Tighten the housing screws gradually and crosswise. Tightening torque 1 Nm 6.2.2 Connecting the cable shield The descriptions of each of the connections specify which cables must be shielded.
  • Page 25 Liquiline CM42B Electrical connection  18 Terminated cable Outer shield (exposed) Cable cores with ferrules Cable sheath (insulation) Remove one sealing plug at the bottom of the housing. Screw in a suitable cable gland. Attach the gland to the cable end, making sure the gland is facing the right direction.

  • Page 26: Cable Terminals

    Electrical connection Liquiline CM42B Clamp the cable into place.  A0054922  19 Cable into grounding clamp Grounding clamp The cable shield is grounded by the grounding clamp. Connect cable cores as per the wiring diagram. Tighten the cable gland with the required torque.
  • Page 27 Liquiline CM42B Electrical connection Insert the cable until the limit stop. Remove the screwdriver (closes the terminal). After connecting, check all the cable cores to ensure they are secure. 6.2.4 Mounting the cable glands NOTICE Unused cable glands installed Housing not leak-tight ‣...
  • Page 28 Electrical connection Liquiline CM42B A0055833 Remove the sealing plug. 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 29 Liquiline CM42B Electrical connection Assignment of the cable glands Feed the cables through the cable glands and connect. The illustration shows an example of how the cable glands are assigned. A0057259 Tighten the cable gland again after the cable has been fed through. Make sure that the sealing insert (1) is flush with the pressure screw (2).
  • Page 30 Electrical connection Liquiline CM42B 6.2.5 Connecting the potential equalization ‣ 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. 6.2.6 Connecting the power supply and signal circuit ‣...
  • Page 31 Liquiline CM42B Electrical connection 4...20 mA 4...20 mA 4...20 mA/HART 4...20 mA/HART A0054900  22 Connection of 1 current output 4...20 mA/ HART – A0054914  23 Wiring diagram: 1 current output Endress+Hauser...
  • Page 32 Electrical connection Liquiline CM42B 4...20 mA /(HART) 4...20 mA/(HART) + 4...20 mA + 4...20 mA A0054901  24 Connection of 2 current outputs via 1 cable 4...20 mA 4...20 mA 4...20 mA/(HART) 4...20 mA/(HART) A0054902  25 Connection of 2 current outputs via 2 cables...
  • Page 33 Liquiline CM42B Electrical connection 4...20 mA/ HART 4 ... 20 mA – – A0054915  26 Wiring diagram: 2 current outputs 6.2.7 Connecting the sensor Abbreviations and color codes used Explanation of abbreviations and labels used in the following illustrations:...
  • Page 34 Electrical connection Liquiline CM42B 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 Endress+Hauser...
  • Page 35 Liquiline CM42B Electrical connection Connecting sensors with Memosens plug-in head (via Memosens cable) and sensors with a fixed cable and Memosens protocol ‣ Sensor Sensor A0055579  27 Connecting Memosens sensors Connect the sensor cable as shown in the illustration.
  • Page 36 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  28 Device view Device Cable Sensor A0055796  29 Wiring diagram CLS50...
  • Page 37 Liquiline CM42B Electrical connection Device Cable Sensor A0055799  30 Wiring diagram CLS54 ‣ Connect the sensor as shown in the illustration. Endress+Hauser...
  • Page 38 Electrical connection Liquiline CM42B 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  31 Device view Device d.n.c. Cable d.n.c. Sensor A0055795  32 Wiring diagram Connect the sensor as shown in the illustration.
  • Page 39 Liquiline CM42B Electrical connection Analog pH sensors Note on connecting coaxial cables A0056259  33 Coaxial cable structure Protective sheath Shield/outer conductor of the coaxial cable Semi-conductive polymer layer Inner insulation Inner conductor Completely remove the semi-conductive polymer layer (3) up to the end of the shield.
  • Page 40 Electrical connection Liquiline CM42B Connecting glass sensors with PML (symmetrical) ‣ 11 13 12 22 20 22 16 18 14 17 11 13 12 22 20 22 16 18 14 17 pH/ORP Sensor Sensor A0055755  34 Device view Device...
  • Page 41 Liquiline CM42B Electrical connection Connecting glass sensors 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  36 Device view d.n.c.
  • Page 42 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 d.n.c.
  • Page 43 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 44 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 45 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 46: Ensuring The Degree Of Protection

    Operation options Liquiline CM42B Ensuring the degree of protection Only the mechanical and electrical connections which are described in these instructions, and which are necessary for the required intended use, may be established on the device delivered. ‣ Exercise care when carrying out the work.

  • Page 47: User Management

    Liquiline CM42B Operation options Access to operating menu via on-site display 7.2.1 User management The on-site display menu offers user management functions. There are 2 roles in user management: • Operator • Maintenance Both roles can be protected via a PIN as an option. Only one PIN can be set for the Operator role if a PIN is also set for the Maintenance role.
  • Page 48 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  43 Structure of the display: Start screen (device with one current output) Device name or menu path...
  • Page 49 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 50: Current Output

    Operation options Liquiline CM42B Press the navigator.  The display shows the primary value. Press the navigator.  The display shows the primary value and temperature. Press the navigator.  The display shows the primary value, temperature and secondary measured values.
  • Page 51 Liquiline CM42B Operation options Press the navigator.  The display shows the primary value and current outputs. 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...

  • Page 52: Access To The Operating Menu Via The Operating Tool

    Operation options Liquiline CM42B The options available in the menu depend on the specific user authorization. Press the soft key.  The menu is called up. Turn the navigator.  The menu item is selected. Press the navigator.  The function is called up.
  • Page 53 Liquiline CM42B Operation options A0029747 Launch the SmartBlue app on the mobile device.  The live list displays all of the devices that are within range. Tap the device to select it. Log in with username and password. Initial access data: •...

  • Page 54: 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 55 Liquiline CM42B System integration A0056628  47 Wiring options for remote operation via HART protocol PLC (programmable logic controller) HART operating unit (e.g. SFX350), optional Transmitter The device can communicate via the HART protocol using current output 1 (depending on order).
  • Page 56 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 WARNING Incorrect connection, incorrect supply voltage Safety risks for staff and device malfunctions! ‣...

  • Page 57: Maintenance

    Liquiline CM42B Maintenance 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 58: Technical Data

    Technical data Liquiline CM42B Connect the cables. Dispose of batteries correctly ‣ Always dispose of batteries in accordance with local regulations on battery disposal. Technical data Voltage input Nom. 24 V DC Min. 17 V DC Max. 30V DC Current 4 –...
  • Page 60 *71688789* 71688789 www.addresses.endress.com...

Table of Contents