Endress+Hauser Liquiline CM442 Operating Instructions Manual
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Endress+Hauser Liquiline CM442 Operating Instructions Manual

Universal four-wire multichannel controller field device
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BA00444C/07/EN/17.13
71238290
Valid as of:
Softwareversion 01.05.00
Products
Operating Instructions
Liquiline
CM442/CM444/CM448
Universal four-wire multichannel controller
Field device
Solutions
Services

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Summary of Contents for Endress+Hauser Liquiline CM442

  • Page 1 Products Solutions Services BA00444C/07/EN/17.13 71238290 Valid as of: Softwareversion 01.05.00 Operating Instructions Liquiline CM442/CM444/CM448 Universal four-wire multichannel controller Field device...

  • Page 3: Table Of Contents

    Liquiline CM442/CM444/CM448 Table of contents Document information ..5 System integration..42 Warnings ......5 Web server .
  • Page 4 Liquiline CM442/CM444/CM448 12 Maintenance....138 12.1 Calibration ..... . . 138 12.2 Cleaning .

  • Page 5: Document Information

    Liquiline CM442/CM444/CM448 Document information Document information Warnings The structure, signal words and safety colors of the signs comply with the specifications of ANSI Z535.6 ("Product safety information in product manuals, instructions and other collateral materials"). Safety message structure Meaning This symbol alerts you to a dangerous situation .

  • Page 6: Documentation

    Document information Liquiline CM442/CM444/CM448 Documentation As a supplement to these Operating Instructions the following manuals are available on the CD-ROM: • Brief Operating Instructions Liquiline CM44x, KA01159C • Operating Instructions Memosens, BA01245C – Software description for Memosens inputs – Calibration of Memosens sensors –...

  • Page 7: Basic Safety Instructions

    Liquiline CM442/CM444/CM448 Basic safety instructions Basic safety instructions Requirements for personnel ‣ Installation, commissioning, operation and maintenance of the measuring system must only be carried out by specially trained technical personnel. ‣ The technical personnel must be authorized for the specified activities by the system operator.

  • Page 8: Occupational Safety

    IT security measures in line with operators' security standards and designed to provide additional protection for the device and device data transfer must be implemented by the operators themselves. Support in the performance of this task can be requested from Endress+Hauser. Endress+Hauser...

  • Page 9: Device Description

    Liquiline CM442/CM444/CM448 Device description Device description Housing closed Display Weather protection cover (optional) Navigator Sensor cable or current output cable Power supply cable Soft keys, assignment depends on menu a0012681 Fig. 1: Mounted on a post Housing open a0016165 Fig. 2: Example of a four-channel device with an open display cover (without wiring)

  • Page 10: Device Architecture

    Device description Liquiline CM442/CM444/CM448 Device architecture 3.3.1 Slot and port assignment a0019832 a0019833 Fig. 3: Slot and port assignment of the hardware modules • Inputs are assigned to measuring channels in ascending order of the slots and ports. Adjacent example: If "CH1: 1:1 pH glass"...
  • Page 11 Liquiline CM442/CM444/CM448 Device description 3.3.2 Terminal diagram The unique terminal name is derived from the following: Slot No. : Port No. : Terminal Example, NO contact of a relay: Device with 4 inputs for digital sensors, 4 current outputs and 4 relays •...

  • Page 12: Incoming Acceptance And Product Identification

    Incoming acceptance and product identification Liquiline CM442/CM444/CM448 Incoming acceptance and product identification Incoming acceptance 1. Make sure the packaging is undamaged.  Inform the supplier about any damage to the packaging. Keep the damaged packaging until the matter has been settled.

  • Page 13: Scope Of Delivery

    Liquiline CM442/CM444/CM448 Incoming acceptance and product identification 4.2.2 Identifying the product The order code and serial number of your device can be found in the following locations: • On the nameplate • In the delivery papers To find out the version of your device, enter the order code indicated on the nameplate in the search screen at the following address: www.products.endress.com/order-ident...

  • Page 14: Installation

    Installation Liquiline CM442/CM444/CM448 Installation Installation conditions 5.1.1 Dimensions a0012396 Fig. 6: Dimensions of field housing in mm (inch) Endress+Hauser...
  • Page 15 Liquiline CM442/CM444/CM448 Installation 5.1.2 Mounting plate a0012426 Fig. 7: Mounting plate in mm (inch) 5.1.3 Weather protection cover (optional) NOTICE Effect of climatic conditions (rain, snow, direct sun etc.) Impaired operation to complete transmitter failure ‣ When installing outside, always use the weather protection cover (accessory).

  • Page 16: Mounting The Measuring Device

    Installation Liquiline CM442/CM444/CM448 Mounting the measuring device You will require the post mounting kit to mount the unit on a pipe, post or railing (circular or square, clamping range 20 to 61 mm (0.79 to 2.40")). The post mounting kit can be ordered as an option.
  • Page 17 Liquiline CM442/CM444/CM448 Installation 5.2.2 Railing mounting a0012668 Fig. 12: Railing mounting Weather protection cover (optional) Pipe or railing (circular/square) Post mounting plate (post mounting kit) Mounting plate Spring washers, nuts (post mounting kit) Threaded rods (post mounting kit) Pipe clamps (post mounting kit)
  • Page 18 Installation Liquiline CM442/CM444/CM448 5.2.3 Wall mounting Mount the controller in such a way that the wall support surface is the size of the rear housing panel at the very least. a0012684 a0012685 Fig. 16: Wall mounting Fig. 17: Attach the device and click it into...

  • Page 19: Post-Installation Check

    Liquiline CM442/CM444/CM448 Installation 5.2.4 Disassembly (for conversion, cleaning etc.) NOTICE The device can be damaged if dropped ‣ When pushing the housing out of the holder, secure the housing in such a way that you do not drop it. If possible, ask a second person to help you.

  • Page 20: Electrical Connection

    Electrical connection Liquiline CM442/CM444/CM448 Electrical connection WARNING The device is live! Incorrect wiring can result in injury or fatality ‣ The electrical connection may only be established by an electrical technician. ‣ The electrical technician must have read and understood these Operating Instructions and must follow the instructions they contain.
  • Page 21 Liquiline CM442/CM444/CM448 Electrical connection 6.1.2 Remote operation via PROFIBUS DP a0015874 Fig. 21: PROFIBUS DP Terminating resistor Endress+Hauser...
  • Page 22 Electrical connection Liquiline CM442/CM444/CM448 6.1.3 Remote operation via Modbus RS485 a0015875 Fig. 22: Modbus RS485 Terminating resistor 6.1.4 Remote operation via ethernet/Web server/Modbus TCP/EtherNet/IP a0015876 Fig. 23: Modbus TCP and / or ethernet Endress+Hauser...

  • Page 23: Connecting The Measuring Device

    Liquiline CM442/CM444/CM448 Electrical connection Connecting the measuring device WARNING The device is live! Incorrect wiring can result in injury or fatality ‣ Prior to beginning any wiring work, make sure voltage is not applied to any of the cables. NOTICE The device does not have a power switch ‣...
  • Page 24 Electrical connection Liquiline CM442/CM444/CM448 6.2.2 Cable mounting rail a0012454 Fig. 26: Cable mounting rail and associated function Cable mounting rail Additional threaded bolts for ground connections Threaded bolt (protective ground connection, central Cable clamps (fixing and grounding the sensor cables) grounding point) 6.2.3...
  • Page 25 Liquiline CM442/CM444/CM448 Electrical connection 1. Release a suitable cable gland on the underside of the housing and remove the dummy plug from the entry. 2. Making sure the gland is facing the right direction, thread the gland onto the cable end and pull the cable through the entry and into the housing.
  • Page 26 Electrical connection Liquiline CM442/CM444/CM448 All other plug-in terminals a0012694 a0012695 a0012696 Fig. 33: Insert the screwdriver until the Fig. 34: Insert the cable until the limit Fig. 35: Remove the screwdriver (closes limit stop (opens the terminal) stop the terminal) 6.2.5...
  • Page 27 Liquiline CM442/CM444/CM448 Electrical connection Connecting the supply voltage 1. Route the power supply cable into the housing through the suitable cable entry. Step 2 only applies for the 100 to 230 V AC power unit. 2. Connect the protective ground of the power unit to the threaded bolt specially provided on the cable mounting rail.
  • Page 28 Electrical connection Liquiline CM442/CM444/CM448 6.2.6 Power supply CM444 and CM448 a0015872 a0015873 Fig. 39: Power supply connection with BASE-E Fig. 40: Overall wiring diagram BASE-E and extension power unit (B) Internal power supply cable Extension power unit Endress+Hauser...
  • Page 29 Liquiline CM442/CM444/CM448 Electrical connection Connecting the supply voltage 1. Route the power supply cable into the housing through the suitable cable entry. Step 2 only applies for the 100 to 230 V AC power unit. 2. Connect the protective ground of the power unit to the threaded bolt specially provided on the cable mounting rail.

  • Page 30: Connecting The Sensors

    Electrical connection Liquiline CM442/CM444/CM448 Connecting the sensors 6.3.1 Sensor types with Memosens protocol Sensor types Sensor cable Sensors Digital sensors without additional CYK10 with plug connection • pH sensors internal power supply and inductive signal • ORP sensors transmission • Combined sensors •...
  • Page 31 Liquiline CM442/CM444/CM448 Electrical connection 1. Sensor cable connected directly a0012459 a0012460 Fig. 42: Sensors without additional supply voltage Fig. 43: Sensors with additional supply voltage a0016197 Fig. 44: Sensors with and without additional supply voltage at sensor module 2DS Endress+Hauser...

  • Page 32: Connecting Additional Inputs, Outputs Or

    Electrical connection Liquiline CM442/CM444/CM448 2. Connection via M12 plug-in connection Device versions with a premounted M12 socket are ready-wired upon delivery. Install an M12 socket, which is available as an accessory, in a suitable cable gland opening in the base of the housing, and connect the cables...
  • Page 33 Liquiline CM442/CM444/CM448 Electrical connection 6.4.1 Digital inputs and outputs DIO module a0019917 a0019836 Fig. 47: Module front Fig. 48: Wiring diagram 6.4.2 Current inputs Module 2AI a0016184 a0015761 Fig. 49: Module front Fig. 50: Wiring diagram Endress+Hauser...

  • Page 34: Relays

    Electrical connection Liquiline CM442/CM444/CM448 6.4.3 Current outputs Module 2AO Module 4AO a0016179 a0015759 a0016178 a0015760 Fig. 51: Module front Fig. 52: Wiring diagram Fig. 53: Module front Fig. 54: Wiring diagram 6.4.4 Relays Module 2R Module 4R a0016181 a0015758 a0016182 a0015757 Fig.
  • Page 35 Liquiline CM442/CM444/CM448 Electrical connection Example: Connecting the cleaning unit 71072583 for CAS40D a0016195 Fig. 59: Connecting the cleaning unit for CAS40D Example: Connecting the injector cleaning unit Chemoclean CYR10 a0016194 Fig. 60: Connecting the injector cleaning unit CYR10 External power supply...

  • Page 36: Connecting Digital Communication

    Electrical connection Liquiline CM442/CM444/CM448 Connecting digital communication 6.5.1 Module 485 a0016173 a0015762 Fig. 61: Bus connections on module 485 Fig. 62: Wiring diagram for module 485 Optional to supply power to an external terminating resistor for bus termination LEDs on front of module...
  • Page 37 Liquiline CM442/CM444/CM448 Electrical connection DIP switches on front of module Factory setting Assignment 1-128 Bus address (--> "Commissioning/Communication") Write protection: "ON" = configuration not possible via the bus, only via local operation Service Only for service, not to be used by the operator 6.5.2...
  • Page 38 Electrical connection Liquiline CM442/CM444/CM448 Ethernet, Web server Internal connection Pin assignment in connector and socket a0016314 Fig. 67: Connector (left) and socket (right) Shield * = Thread a0016313 Fig. 66: Ethernet socket Endress+Hauser...
  • Page 39 Liquiline CM442/CM444/CM448 Electrical connection 6.5.3 Bus termination There are two ways to terminate the bus: Internal terminating resistor (via DIP switch on the module board) Fig. 68: DIP switches for internal terminating resistor ‣ Using a suitable tool, such as a tweezers, set all 4 DIP switches to the "ON" position.

  • Page 40: Hardware Settings

    Electrical connection Liquiline CM442/CM444/CM448 Hardware settings Setting the bus address 1. Open the housing. 2. Set the desired bus address via the DIP switches of module 485. For PROFIBUS DP, valid bus addresses are anything between 1 and 126, and anything between 1 and 247 for Modbus.

  • Page 41: Post-Connection Check

    Liquiline CM442/CM444/CM448 Electrical connection Post-connection check WARNING Wiring errors Incorrect wiring puts the safety of people and the measuring point at risk. The manufacturer does not accept any responsibility for errors that result from failure to comply with the instructions in this manual.

  • Page 42: System Integration

    System integration Liquiline CM442/CM444/CM448 System integration Web server 7.1.1 Connection ‣ Connect the PC communication cable to the RJ45 port of module 485. a0016228 Fig. 73: Ethernet connection 7.1.2 Creating the data connection 1. Start your PC. 2. First, set a manual IP address in the network connection settings of the operating system.
  • Page 43 192.168.1.212/logbooks_csv.fhtml (for logbooks in CSV format) • 192.168.1.212/logbooks_fdm.fhtml (for logbooks in FDM format) Downloads in FDM format can be securely transmitted, saved and visualized with Endress+Hauser' s "Field Data Manager Software". (--> www.products.endress.com/ms20) 7.1.3 Operation The menu structure of the web server corresponds to the onsite operation.

  • Page 44: Service Interface

    System integration Liquiline CM442/CM444/CM448 Service interface You can connect the device to a computer via the service interface and configure it using "Fieldcare". Furthermore, configurations can also be saved, transferred and documented. 7.2.1 Connection ‣ Connect the service connector to the interface on the Liquiline base module and connect it to the Commubox.

  • Page 45: Fieldbuses

    Liquiline CM442/CM444/CM448 System integration Fieldbuses 7.3.1 HART You can communicate using the HART protocol via current output 1. ‣ Connect the HART modem or handheld to current output 1 (communication load 230 - 500 Ohm). ‣ Establish the connection via your HART device.

  • Page 46: Operation Options

    Operation options Liquiline CM442/CM444/CM448 Operation options Overview 8.1.1 Display and operating elements a0011764 Fig. 76: Overview of operation Display (red background in the event of an error) Navigator (jog/shuttle and press/hold function) Soft keys (function depends on the menu) 8.1.2...

  • Page 47: Access To The Operating Menu Via The Local Display

    Liquiline CM442/CM444/CM448 Operation options Access to the operating menu via the local display 8.2.1 Operation concept a0012790-en a0012791-en Fig. 78: Pressing the soft key: selecting the menu directly Fig. 79: Turning the navigator: moving the cursor in the menu a0012792-en a0012793-en Fig.

  • Page 48: Configuration Options

    Operation options Liquiline CM442/CM444/CM448 8.2.2 Locking or unlocking operating keys Locking operating keys 1. Press the navigator for longer than 2 s.  A context menu for locking the operating keys is displayed. You have the choice of locking the keys with or without password protection. "With password"...
  • Page 49 Liquiline CM442/CM444/CM448 Operation options 8.3.3 Numerical values • You are changing a variable. • The maximum and minimum values for this variable are shown in the editor. • Set a value within this range. • Example: Menu/Display/Operation/Contrast 8.3.4 Actions • You trigger an action with the appropriate function.
  • Page 50 Operation options Liquiline CM442/CM444/CM448 8.3.5 Free text • You are assigning an individual designation. • Enter a text. You can use the characters in the editor for this purpose (upper-case and lower-case letters, numbers and special characters). • Using the soft keys, you can: –...
  • Page 51 Liquiline CM442/CM444/CM448 Operation options 8.3.6 Tables • Tables are needed to map mathematical functions. • You edit a table by navigating through rows and columns with the navigator and changing the values of the cells. • You only edit the numerical values. The controller automatically takes care of the engineering units.

  • Page 52: Commissioning

    Commissioning Liquiline CM442/CM444/CM448 Commissioning Function check WARNING Incorrect connection, incorrect supply voltage Safety risks for staff and device malfunctions ‣ Check that all connections have been established correctly in accordance with the wiring diagram. ‣ Make sure that the supply voltage matches the voltage indicated on the nameplate.
  • Page 53 Liquiline CM442/CM444/CM448 Commissioning Path: Menu/Display/Operation Function Options Info Screen rotation Options If "Automatic" is selected, the single-channel measured • Manual value display switches from one channel to the next • Automatic every second. Factory setting Manual User definable screens Meas. screen 1 You can create 6 measuring screens of your own and give them a name.

  • Page 54: Basic Setup

    Commissioning Liquiline CM442/CM444/CM448 Path: Menu/Display/Operation Function Options Info Measured value Options You can display different measured values depending on • Depends on the source of the source of data or output. data or output Factory setting None Label Customized text, 20...

  • Page 55: Operation

    Liquiline CM442/CM444/CM448 Operation Operation 10.1 Display 10.1.1 Soft keys in the measurement mode On the bottom row of the display you can find four soft keys in the measuring screens: • "MENU", "CAL" and "DIAG" take you directly to the particular software menu.
  • Page 56 Operation Liquiline CM442/CM444/CM448 Sensor type Main value Main / secondary All values measured value Chlorine, Chlorine Chlorine, temperature Main value, Raw value, Temperature amperometric Nitrate Nitrate Nitrate, temperature Main value, Raw value, Temperature Turbidity Turbidity Turbidity, temperature Main value, Raw value, Temperature...
  • Page 57 Liquiline CM442/CM444/CM448 Operation Icon Location Description Title bar Simulation mode active or Memocheck SIM connected At measured value The measured value is influenced by a simulated value At measured value The displayed measured value is simulated Only pH or ORP measurement...

  • Page 58: General Settings

    Operation Liquiline CM442/CM444/CM448 10.2 General settings 10.2.1 Basic settings Path: Menu/Setup/General settings Function Options Info Device tag Customized text, 32 Select any name for your controller. Use the TAG name characters for example. Temperature unit Options • °C • °F •...
  • Page 59 Liquiline CM442/CM444/CM448 Operation 10.2.2 Date and time Path: Menu/Setup/General settings/Date/Time Function Options Info Set date Depends on the format Editing mode: Day (two-digit): 01 to 31 Month (two-digit): 01 to 12 Year (four-digit): 1970 to 2106 Set time Depends on the format...
  • Page 60 Operation Liquiline CM442/CM444/CM448 10.2.3 Automatic hold Path: Menu/Setup/General settings/Automatic hold Function Options Info Device specific hold Setup menu Options Decide whether a hold should be output at the current • Disabled output when the particular menu is opened. Diagnostics menu •...
  • Page 61 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/General settings/Logbooks Function Options Info Overflow warnings Event logbook="Fill up buffer" Calibration logbook Options Decide whether you want to receive a diagnostic • Off message from the controller in the event of fill-up buffer Diagnostic logbook •...
  • Page 62 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/General settings/Logbooks Function Options Info Data logbook Options Ring buffer • Off If the memory is full, the most recent entry • Ring buffer automatically overwrites the oldest entry. • Fill up buffer Fill up buffer If the memory is full, there is an overflow, i.e.
  • Page 63 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/General settings/Logbooks Function Options Info Data logbook Options Ring buffer • Off If the memory is full, the most recent entry • Ring buffer automatically overwrites the oldest entry. • Fill up buffer Fill up buffer If the memory is full, there is an overflow, i.e.
  • Page 64 Operation Liquiline CM442/CM444/CM448 Example for setting up a new data logbook (for sensors) Menu/Setup/General settings/Logbooks/Data logbooks/New: a. Logbook name: Assign a name, e.g. "01". b. Source of data: Select a data source, e.g. the sensor connected to channel 1 (CH1).
  • Page 65 Liquiline CM442/CM444/CM448 Operation Path: ... /Extended setup/Diagnostics settings/Diag. behavior Function Options Info Diag. output Options You can use this function to select an output to which • None the diagnostic message should be assigned. • Alarm relay Before you can assign the message to an output, you •...
  • Page 66 Operation Liquiline CM442/CM444/CM448 PROFIBUS DP Path: Menu/Setup/General settings/Extended setup/PROFIBUS Function Options Info Enable Options You can switch off PROFIBUS communication at this • Off point. The software can then only be accessed via local • On operation. Factory setting Termination...
  • Page 67 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/General settings/Extended setup/Modbus Function Options Info Watchdog 0 to 999 s If no data transmission takes place for longer than the time set, this is an indicator that communication has Factory setting been interrupted. After this time, input values received via the Modbus are considered to be invalid.
  • Page 68 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/General settings/Extended setup/Ethernet Function Options Info Gateway x.x.x.x A gateway (protocol converter) enables communication between networks that are based on completely Factory setting different protocols. 0.0.0.0 MAC-Address Read only The MAC address (Media Access Control address) is the...
  • Page 69 Liquiline CM442/CM444/CM448 Operation Data management Firmware update Please contact your local sales office for information on firmware updates available for your controller and its compatibility with earlier versions. Your current firmware version can be found at: Menu/Diagnostics/System information/Software version. First save your current setup on an SD card since a firmware update overwrites your settings with the factory settings.
  • Page 70 Operation Liquiline CM442/CM444/CM448 Loading the setup You can load a setup you have saved quickly and easily When you load a setup, the current configuration is overwritten. Note that cleaning and controller programs could be active. Do you want to continue anyway? 1.
  • Page 71 Liquiline CM442/CM444/CM448 Operation Activation code You require activation codes for: • Additional functions, e.g. fieldbus communication • Software upgrades If activation codes are available for your device, these codes are provided on the inner nameplate. The corresponding device functions are activated at the factory. You only require the codes if servicing the device.

  • Page 72: Current Inputs

    Operation Liquiline CM442/CM444/CM448 10.3 Current inputs The input can be used as the data source for limit switches and logbooks, for example. Furthermore, external values can be made available as set points for controllers. Path: Menu/Setup/Inputs/Current input %0V x:y Function...

  • Page 73: Outputs

    Liquiline CM442/CM444/CM448 Operation 10.4 Outputs 10.4.1 Current outputs The basic version of the device always has two current outputs. You can configure additional current outputs with extension modules. Under Menu/Setup/General settings set the current range of 0 to 20 mA or 4 to 20 mA.
  • Page 74 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Outputs/Current output x:y (slot:output number) Function Options Info Hold behavior Options Freeze • Freeze The device freezes the last current value. • Fixed value Fixed value • None You define a fixed current value that is output at the Factory setting output.
  • Page 75 Liquiline CM442/CM444/CM448 Operation Measured valuedepending on theSource of data Source of data Measured value TU/TS Options • Temperature • Turbidity g/l • Turbidity FNU Nitrate Options • Temperature • NO3 • NO3-N Ultrasonic interface(interface Options measurement) • Interface • Turbidity Options •...
  • Page 76 Operation Liquiline CM442/CM444/CM448 10.4.2 Alarm relay and optional relays The basic version of the device always has one alarm relay. Additional relays are also available depending on the version of the device. The following functions can be output via a relay •...
  • Page 77 Liquiline CM442/CM444/CM448 Operation Outputting the manipulated variable of a controller To output a controller manipulated variable via a relay, the relay is modulated. The relay is energized (pulse, t ) and is then de-energized (interval, t Function="Controller" Function Options Info...
  • Page 78 Operation Liquiline CM442/CM444/CM448 PFM (pulse frequency modulation): Here, pulses of a constant length (t ) are output and the interval between the pulses varies ). At a maximum frequency, t Typical application: dosing pump Function="Controller" Function Options Info Actuator type...
  • Page 79 Liquiline CM442/CM444/CM448 Operation Outputting diagnostics messages via the relay You can output two categories of diagnostics messages via the relay: Diagnostic messages from one of the 4 Namur classes (→ ä 121) Diagnostic messages from one of the 4 Namur classes (-->...
  • Page 80 Operation Liquiline CM442/CM444/CM448 Outputting the status of a cleaning function Function="Cleaning" Function Options Info Assignment Options Here you can specify how a cleaning function should be • None displayed for the alarm relay. • Cleaning 1 - Water You can define the cleaning programs under: •...
  • Page 81 Liquiline CM442/CM444/CM448 Operation PROFIBUS variables (PROFIBUS --> device) Not in the "Menu/Setup/Outputs" menu ‣ A maximum of 4 analog (AO) and 8 digital (DO) PROFIBUS variables are available as measured values in the controller, limit switch or current output menus.

  • Page 82: Binary Inputs And Outputs

    Operation Liquiline CM442/CM444/CM448 10.5 Binary inputs and outputs The optional "DIO" hardware module with 2 digital inputs and 2 digital outputs enables the following: • via a digital input signal – measuring range switching for conductivity (upgrade code required, see accessories) –...
  • Page 83 Liquiline CM442/CM444/CM448 Operation 10.5.1 Application examples Chlorine control with feedforward control a0020123 Fig. 84: Example of chlorine control with feedforward control Connection of the inductive proximity switch INS of the CCA250 assembly at the digital input of the DIO module for...
  • Page 84 Operation Liquiline CM442/CM444/CM448 Chlorine control with feedforward control Utilize the advantage of the effectively wear-free control with binary outputs versus a control system with relay. It is possible to achieve virtually continuous dosing using a dosing pump with higher input frequency through pulse frequency modulation (PFM).
  • Page 85 Liquiline CM442/CM444/CM448 Operation CM44x as cleaning master a0020124 Fig. 85: Example of a central cleaning control External cleaning trigger at the binary input Transferring the external hold over binary output to other measuring devices without connected cleaning functions Transferring the cleaning trigger over a binary output to other self-cleaning measuring points CM44x as "cleaning master"...
  • Page 86 Operation Liquiline CM442/CM444/CM448 10.5.2 Binary input configuration Path: Menu/Setup/Inputs/Binary input x:y Function Options Info Binary input Options Switching the input on/off • Off • On Factory setting Signal type Options Select the signal type. • Static signal Static signal • PFM...
  • Page 87 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Inputs/Binary input x:y Function Options Info Input mode Options Frequency • Frequency Display in Hz in the measuring menu • Parameter Parameter Factory setting You subsequently determine the parameter name and Frequency unit. These are then displayed in the measuring menu.
  • Page 88 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Outputs/Binary output x:y Function Options Info Signal type= "PFM" Max. frequency 1.00 to 1000.00 Hz Maximum frequency of the PFM output signal Is to equal the maximum possible upper limit of the Factory setting measuring range.
  • Page 89 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Outputs/Binary output x:y Function Options Info Error behavior Options Freeze • Freeze The device freezes the last value. • Fixed value Fixed value Factory setting You define a fixed current value that is transmitted at Fixed value the output.

  • Page 90: Additional Functions

    Operation Liquiline CM442/CM444/CM448 10.6 Additional functions 10.6.1 Limit switch There are different ways of configuring a limit switch: • Assigning a switch-on and switch-off point • Assigning a switch-on and switch-off delay for a relay • Setting an alarm threshold and also outputting an error message •...
  • Page 91 Liquiline CM442/CM444/CM448 Operation Measured valuedepending on theSource of data Source of data Measured value Cond i Options • Temperature Cond c • Conductivity • Resistance (only Cond c) • Concentration (only Cond i) Chlorine Options • Temperature • Current • Concentration Options •...
  • Page 92 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8 Function Options Info Cleaning program Options Use this function to choose the cleaning instance which • None should be started when the limit switch is active. • Cleaning 1 •...
  • Page 93 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8 Function Options Info Range lower value Settings Operating mode="In range check" or "Out of range check" Depends on the measured Range upper value value a0018081 Fig. 87: Monitoring outside (A) and within (B) a range (without hysteresis and switch-on delay)
  • Page 94 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8 Function Options Info Start delay 0 to 9999 s Operating mode="In range check", "Out of range check","Above limit check" or "Below limit check" Factory setting Switch off delay Synonyms: pick-up and drop-out delay...
  • Page 95 Liquiline CM442/CM444/CM448 Operation 10.6.2 Controller Controller structure in Laplace representation a0015007 Fig. 90: Block diagram of the controller structure Neutral zone Integral value Output limiting Derivative value Gain (P-value) α Damping time constant with α = 0 to 1 Integral action time (I-value)
  • Page 96 Operation Liquiline CM442/CM444/CM448 Configuration Make the following decisions when configuring a controller: What type of process can your process be assigned to? -->Process type Should it be possible to influence the measured variable (controlled variable) in one direction or in both directions? One-sided or two-sided controller, -->Controller type...
  • Page 97 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Controller Enable Options In connection with the DIO module, you can select a • None binary input signal, e.g. from an inductive proximity • Binary inputs switch, as a source for enabling the controller.
  • Page 98 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Controller type Options Depending on the actuator connected, you influence the • PID 1-sided process in just one direction (e.g. heating) or in both • PID 2-sided directions (e.g.
  • Page 99 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Controlled variable Source of data Options Specify the input or output which should be the source of • Sensors data for the controlled variable. • Current inputs •...
  • Page 100 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Disturbance variable optional, activation code necessary With "flowing medium" (inline) controls, it can happen that the flow rate is non-constant. In some circumstances, strong fluctuations are possible. In the case of a settled control system in which the flow rate is suddenly halved, it is desirable that the dosed quantity from the controller is also directly halved.
  • Page 101 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Source of data Options Specify the input or output which should be the source of • Sensors data for the disturbance variable. • Current inputs • Fieldbus signals •...
  • Page 102 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info 0.1 to 999.9 s Time constant for anti-windup feedback The lower the value the greater the integrator Factory setting inhibition. Exercise extreme caution when making 20.0 s changes.
  • Page 103 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Range of adjustment and Tolerance range about the setpoint that prevents minor factory setting oscillations about the setpoint if using two-sided control Process Depends on the "Source of loops.
  • Page 104 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Controller 1 or Controller 2 Function Options Info Manual mode -100 to 100 % Editable manipulated variable, which is output in the manual mode. Factory setting Y Actual output Read only Manipulated variable actually output: Input manually for "Control"...
  • Page 105 Liquiline CM442/CM444/CM448 Operation Standard cleaning Standard cleaning involves cleaning a sensor with compressed air, for instance, as performed with the ion-selective sensor CAS40D (connection of the cleaning unit for CAS40D→ ä 35 ). Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Standard clean...
  • Page 106 Operation Liquiline CM442/CM444/CM448 Chemoclean Plus Use the "Chemoclean Plus" function for measuring cycles in aggressive media or for regular cleaning operations with acids, bases or special cleaners. CM44x / CM44xR / CSFxx R1 R2 R3 R4 DI1 DI2 a0022102 Fig. 91: Layout of a measuring point with regular cleaning with acid and base Compressed air connection for "Measure"...
  • Page 107 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Chemoclean Plus/ChemoCleanPlus setup Function Options Info Output label 1 ... 4 Text You can assign a meaningful name to each output, e.g. "assembly", "acid", "base" etc. Sample program: regular cleaning with acid and base...
  • Page 108 Operation Liquiline CM442/CM444/CM448 Defining the cleaning cycle Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4 Function Options Info Cleaning cycle Options Choose from a cleaning routine that is restarted at set • Off intervals and a user-definable weekly program. • Interval • Weekly program Factory setting Cleaning cycle= "Interval"...
  • Page 109 Liquiline CM442/CM444/CM448 Operation Other settings and manual cleaning Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4 Function Options Info Start signal Options In addition to cyclic cleaning, you can also use an input • Bus signals signal to start event-controlled cleaning. • Signals of digital or Choose the trigger for such a cleaning process here.
  • Page 110 Operation Liquiline CM442/CM444/CM448 10.6.4 Mathematical functions In addition to "real" process values which are delivered by analog inputs or physical sensors connected to the device, you can also calculate a maximum of 6 "virtual" process values using mathematical functions. The "virtual" process values can be: •...
  • Page 111 Liquiline CM442/CM444/CM448 Operation Redundancy Use this function to monitor two or three sensors with redundant measurements. The arithmetic average of the two closest measured values is calculated and output as the redundancy value. Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Redundancy...
  • Page 112 Operation Liquiline CM442/CM444/CM448 rH value To calculate the rH value, a pH sensor and an ORP sensor must be connected. It is irrelevant whether you are using a pH glass sensor, an ISFET sensor or the pH electrode of an ISE sensor.
  • Page 113 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Degassed conductivity Function Options Info CO2 concentration Read only View this value in a user-defined measuring screen or output the value via the current output. Dual conductivity You can subtract two conductivity values and use the result, for example, to monitor the efficiency of an ion exchanger.
  • Page 114 Operation Liquiline CM442/CM444/CM448 Calculated pH value The pH value can be calculated from the measured values of two conductivity sensors under certain conditions. Areas of application include power stations, steam generators and boiler feedwater. Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/pH calculation from...
  • Page 115 Liquiline CM442/CM444/CM448 Operation 10.6.5 Measuring range switch A measuring range switching (MRS) configuration includes the following options for each of the four binary input states: • Mode of operation (conductivity or concentration) • Concentration table • Temperature compensation • Current output turndown •...
  • Page 116 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Measuring range switch Function Options Info MRS set 1 If you enter both activation codes, you have two MRS set 2 independent parameter sets available for measuring range switching. The submenus are the same for both sets.
  • Page 117 Liquiline CM442/CM444/CM448 Operation Path: Menu/Setup/Additional functions/Measuring range switch Function Options Info Conc. Table Options Concentration tables saved at the factory: • NaOH 0..15% NaOH: 0 to 15%, 0 to 100 ˚C (32 to 212 ˚F) • HCl 0..20% HCl: 0 to 20%, 0 to 65 ˚C (32 to 149 ˚F) •...
  • Page 118 Operation Liquiline CM442/CM444/CM448 Path: Menu/Setup/Additional functions/Measuring range switch Function Options Info Limit switches Range lower value 0 to 100 % Operating mode= "Concentration" Range upper value Range lower unit Options Operating mode= "Conductivity" • S/m Define the units and range limits for the output values.

  • Page 119: Diagnostics And Troubleshooting

    Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting Diagnostics and troubleshooting The transmitter continuously monitors its own functions. If a diagnostics message occurs, the display alternates between the diagnostics message and the measured value in the measuring mode. The color of the display background changes to red if a diagnostics message for error category "F"...

  • Page 120: Diagnostic Information On The Local

    Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 11.1.3 Device-specific errors Problem Possible cause Tests and/or remedial measures Dark display No supply voltage Check if supply voltage applied. Base module defective Replace base module Values appear on display Module not wired correctly Check modules and wiring.

  • Page 121: Adjusting Diagnostic Information

    Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting 11.5 Adjusting diagnostic information 11.5.1 Classification of diagnostics messages More detailed information on the current diagnostics messages displayed is provided in the DIAG/Diagnostics list menu. In accordance with Namur specification NE 107, the diagnostics messages are characterized by: •...
  • Page 122 Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 11.5.2 Adjusting diagnostic behavior All the diagnostics messages are assigned to specific error categories at the factory. Since other settings might be preferred depending on the application, error categories and the effect errors have on the measuring point can be configured individually. Furthermore, every diagnostics message can be disabled.
  • Page 123 Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting Path: ... /Extended setup/Diagnostics settings/Diag. behavior Function Options Info Status signal Options The messages are divided into different error categories • Maintenance (M) in accordance with NAMUR NE 107. • Out of specification (S) Decide whether you want to change a status signal •...

  • Page 124: Overview Of Diagnostic Information

    Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 11.6 Overview of diagnostic information 11.6.1 Device-specific, general diagnostics messages Message Factory settings Tests or remedial measures Cat. Diag. Error on/off current Selftest active Wait for self-test to be finished Hold active Output values and status of the channel are on...
  • Page 125 Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting Message Factory settings Tests or remedial measures Cat. Diag. Error on/off current Electr. temp. High electronics temperature --> Check ambient temperature and energy consumption Sensor check No measurement signal from sensor -> Check the sensor connection ->...
  • Page 126 Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 Message Factory settings Tests or remedial measures Cat. Diag. Error on/off current Limit switch Limit switch activated Hold active CH1 ... 8 Output values and status of the channels are on hold. Wait until the hold is released again.

  • Page 127: Pending Diagnostic Messages

    Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting 11.6.2 Sensor-specific diagnostics messages See Operating Instructions for "Memosens", BA01245C 11.7 Pending diagnostic messages The Diagnostics menu contains all the information on the device status. Furthermore, various service functions are available. The following messages are directly displayed every time you enter the menu: •...
  • Page 128 Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 Logbook Visible in Max. Can be Logbook Entries Can be entries disabled can be can be exported deleted deleted Debugging logbook Only accessible with the 1000 special activation code (Service) Data in brackets means this depends on the overall logbook 11.9.2 Logbooks menu...
  • Page 129 Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting Diagnostics/Logbooks Function Options Info Go to date User input Use this function to go directly to a specific time in the • Go to date list. In this way, you avoid having to scroll through all •...
  • Page 130 Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 Diagnostics/Logbooks Function Options Info Data logbooks Chronological list of the data logbook entries for sensors. Data logbook 1 <Logbook This submenu is available for each data logbook that you name> have set up and activated.

  • Page 131: 11.10 Simulation

    Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting 11.10 Simulation You can simulate values at inputs and outputs for testing purposes: • Current values at current outputs • Measured values at inputs • Relay contact opening or closing Diagnostics/Simulation Function Options Info Current outputx:y Simulation of an output current This menu appears once for each current output.

  • Page 132: 11.11 Reset Measuring Instrument

    Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 Diagnostics/Simulation Function Options Info Sim. temperature Options If you simulate the temperature measured value, this is • On indicated on the display by a simulation icon in front of • Off the temperature. Factory setting Temperature -50.0 to +250.0 ˚C...

  • Page 133: 11.12 Device Information

    Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting 11.12 Device information 11.12.1 System information Diagnostics/System information Function Options Info Device tag Read only Individual device tag, --> "General settings" Order code Read only You can order identical hardware with this code. This code changes on account of changes to the...
  • Page 134 Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 Diagnostics/System information Function Options Info Ethernet Read only Ethernet-specific information • Enable only with Ethernet, Modbus • Webserver TCP, Modbus RS485 or • IP-Address PROFIBUS DP option • Netmask • Gateway • MAC-Address • Modbus TCP Port 502 •...
  • Page 135 Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting 11.12.2 Sensor information Select the channel you want from the list of channels. Information in the following categories is displayed: • Extreme values Extreme conditions to which the sensor was previously exposed, e.g. min./max. temperatures •...

  • Page 136: 11.13 Firmware History

    Diagnostics and troubleshooting Liquiline CM442/CM444/CM448 11.13 Firmware history Date Version Changes to software Documentation: edition 12/2013 01.05.00 Extension BA00444C/07/EN/17.13 • Chemoclean Plus BA00486C/07/EN/02.13 • Calendar function for cleaning BA01245C/07/EN/01.13 • Conductivity: – Measuring range switching also for conductive conductivity measurement –...
  • Page 137 Liquiline CM442/CM444/CM448 Diagnostics and troubleshooting Date Version Changes to software Documentation: edition 12/2011 01.03.00 Extension BA00444C/07/EN/14.11 • Max. 8 sensor channels supported BA00445C/07/EN/14.11 • Current inputs BA00450C/07/EN/14.11 • PROFIBUS DP incl. profile 3.02 supported BA00451C/07/EN/14.11 • Modbus RTU (RS485) supported BA00486C/07/EN/01.11...

  • Page 138: Maintenance

    Maintenance Liquiline CM442/CM444/CM448 Maintenance WARNING Process pressure and temperature, contamination, electrical voltage Risk of serious or fatal injury ‣ If the sensor has to be removed during maintenance work, avoid hazards posed by pressure, temperature and contamination. ‣ De-energize the device before opening it.

  • Page 139: Cleaning

    Liquiline CM442/CM444/CM448 Maintenance 12.2 Cleaning 12.2.1 Controller Only clean the front of the housing with commercially available cleaning agents. The front is resistant to the following as per DIN 42 115: • Ethanol (short periods) • Diluted acids (max. 2% HCl) •...
  • Page 140 Maintenance Liquiline CM442/CM444/CM448 12.2.3 Assemblies Refer to the assembly operating manual for information on servicing and troubleshooting the assembly. The assembly operating manual describes the procedure for mounting and disassembling the assembly, replacing the sensors and seals, and contains information on the material resistance properties, as well as spare parts and accessories.

  • Page 141: Repair

    Liquiline CM442/CM444/CM448 Repair Repair 13.1 Spare parts a0012840 Fig. 93: Spare parts: You can find the names of spare parts and their order numbers in the following table. Endress+Hauser...
  • Page 142 • Instructions for spare parts kit CM44x Kit CM44x/CM44xR: electronics module backplane 71101457 • Backplane complete • To be replaced only by Endress+Hauser Service Kit CM44x/CM44xR: electronics module extension backplane 71141366 • Extension backplane complete • To be replaced only by Endress+Hauser Service...
  • Page 143 Liquiline CM442/CM444/CM448 Repair Item Kit CM44x Order number Kit CM44x/ CM44xR: extension module AOR (2 relays + 2 current outputs) 71111053 • Extension module AOR, complete • Instructions for spare parts kit CM44x Kit CM44x/CM44xR: terminal set, extension module AOR...

  • Page 144: Return

    The product has to be returned in the event of repair, factory calibration, incorrect delivery or incorrect ordering. As an ISO-certified company and due to legal regulations, Endress+Hauser is obligated to use particular handling techniques for all returned products that have come into contact with a medium.

  • Page 145: Accessories

    Liquiline CM442/CM444/CM448 Accessories Accessories The most important accessories available at the time this document went to print are listed below. Contact your service representative or Sales Center for accessories that are not listed here. 14.1 Weather protection cover CYY101 weather protection cover for field devices - absolutely essential if operating the unit outdoors •...

  • Page 146: Sensors

    Accessories Liquiline CM442/CM444/CM448 14.4 Sensors 14.4.1 Glass electrodes Orbisint CPS11D • pH sensor with Memosens technology • Dirt-resistant PTFE diaphragm • Order as per product structure (--> Online Configurator, www.products.endress.com/cps11d) • Technical Information TI00028C/07/EN Memosens CPS31D • pH sensor with Memosens technology •...
  • Page 147 Liquiline CM442/CM444/CM448 Accessories 14.4.3 ORP sensors Orbisint CPS12D • ORP sensor with Memosens technology • Dirt-resistant PTFE diaphragm; • Order as per product structure (--> Online Configurator, www.products.endress.com/cps12d) • Technical Information TI367C/07/EN Ceraliquid CPS42D • ORP sensor with Memosens technology •...
  • Page 148 Accessories Liquiline CM442/CM444/CM448 Tophit CPS491D • ISFET sensor with Memosens technology • Open aperture diaphragm for media with high potential for fouling • Order as per product structure (--> Online Configurator, www.products.endress.com/cps491d) • Technical Information TI377C/07/EN 14.4.5 pH/ORP combined sensors Memosens CPS16D •...
  • Page 149 Liquiline CM442/CM444/CM448 Accessories Condumax CLS16D • Hygienic, conductive conductivity sensor for pure water, ultrapure water and EX applications • With EHEDG and 3A approval • Order as per product structure (--> Online Configurator, www.products.endress.com/cls16d) • Technical Information TI227C/07/EN Condumax CLS21D •...

  • Page 150: Additional Functionality

    Accessories Liquiline CM442/CM444/CM448 14.4.11 Turbidity sensors Turbimax CUS51D • For nephelometric turbidity and solids measurement in wastewater • 4-beam alternating light method based on scattered light • With Memosens protocol • Order as per product structure (--> Online Configurator, www.products.endress.com/cus51d) •...
  • Page 151 Liquiline CM442/CM444/CM448 Accessories Kit CM444/CM448/CM444R/CM448R/CSF48: extension module 2DS • 2 x digital sensor, Memosens • Order No. 71135631 Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module 2AI • 2 x analog input 0/4 to 20 mA • Order No. 71135639 Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48: extension module DIO •...

  • Page 152: Software

    Accessories Liquiline CM442/CM444/CM448 14.5.2 Firmware and activation codes SD card with Liquiline firmware • Industrial Flash Drive, 1 GB • Order No. 71127100 Activation code for digital HART communication • Order No. 71128428 Activation code for PROFIBUS DP • Order No. 71135635 Activation code for Modbus RS485 •...

  • Page 153: Other Accessories

    Liquiline CM442/CM444/CM448 Accessories 14.7 Other accessories 14.7.1 SD card SD card • Industrial Flash Drive, 1 GB • Order No. 71110815 14.7.2 Cable glands Kit CM44x: gland M • Set, 6 pieces • Order No. 71101768 Kit CM44x: gland NPT •...
  • Page 154 Accessories Liquiline CM442/CM444/CM448 14.7.4 Communication-specific accessories Commubox FXA195 HART • Intrinsically safe HART communication with FieldCare via the USB port • Technical Information TI00404F Commubox FXA291 • Connects the CDI interface of measuring devices with the USB port of the computer or laptop •...

  • Page 155: Technical Data

    Liquiline CM442/CM444/CM448 Technical data Technical data 15.1 Input 15.1.1 Measured variables --> Documentation of the connected sensor 15.1.2 Measuring ranges --> Documentation of the connected sensor 15.1.3 Input types • digital sensor inputs for sensors with Memosens protocol • Analog current inputs (optional) •...

  • Page 156: Digital Inputs, Passive

    Technical data Liquiline CM442/CM444/CM448 15.2 Digital inputs, passive 15.2.1 Electrical specification • drawing power (passive) • galvanically isolated 15.2.2 Span High: 11 to 30 V DC Low: 0 to 5 V DC 15.2.3 Nominal input current Max. 8 mA 15.2.4 PFM function Minimum pulse width: 500 μs (1 kHz)

  • Page 157: Output

    Liquiline CM442/CM444/CM448 Technical data 15.4 Output 15.4.1 Output signal Depending on version: • 2 x 0/4 to 20 mA, active, potentially isolated from one another and from the sensor circuits • 4 x 0/4 to 20 mA, active, potentially isolated from one another and from the sensor circuits •...
  • Page 158 Technical data Liquiline CM442/CM444/CM448 Ethernet and Modbus TCP Signal encoding IEEE 802.3 (ethernet) Data transmission rate 10 / 100 MBd Galvanic isolation Connection RJ45, optional M12 IP address DHCP or configuration via menu EtherNet/IP Signal encoding IEEE 802.3 (ethernet) Data transmission rate...

  • Page 159: Digital Outputs, Passive

    Liquiline CM442/CM444/CM448 Technical data 15.5 Digital outputs, passive 15.5.1 Electrical specification • Passive • Open collector, max. 30 V, 15 mA 15.5.2 PFM function Minimum pulse width: 500 μs (1 kHz) 15.5.3 Auxiliary voltage Electrical specification • Galvanically isolated • Unregulated, 24 V DC ± 20% •...

  • Page 160: Current Output, Active

    Technical data Liquiline CM442/CM444/CM448 15.6 Current output, active 15.6.1 Span 0 to 23 mA 2.4 to 23 mA for HART communication 15.6.2 Signal characteristic Linear 15.6.3 Electrical specification Output voltage Max. 24 V Testing voltage 500 V 15.6.4 Cable specification...

  • Page 161: Relay Outputs

    Liquiline CM442/CM444/CM448 Technical data 15.7 Relay outputs 15.7.1 Relay types • 1 single-pin changeover contact (alarm relay) • 2 or 4 single-pin changeover contacts (optional with extension modules) 15.7.2 Relay switching capacity Base module (alarm relay) Switching voltage Load (max.) Switching cycles (min.)

  • Page 162: Protocol-Specific Data

    Technical data Liquiline CM442/CM444/CM448 15.7.3 Cable cross-section Max. 2.5 mm (14 AWG) 15.8 Protocol-specific data 15.8.1 HART Manufacturer ID Device type 119C (CM44x), 119D (CSFxx) Device revision HART version Device description files (DD/DTM) www.endress.com Device Integration Manager (DIM) Device variables...
  • Page 163 Liquiline CM442/CM444/CM448 Technical data 15.8.3 Modbus RS485 Protocol RTU / ASCII Function codes 03, 04, 06, 08, 16, 23 Broadcast support for function codes 06, 16, 23 Output data 16 measured values (value, unit, status), 8 digital values (value, status)
  • Page 164 Technical data Liquiline CM442/CM444/CM448 Maximum RPI 10000 ms System integration EtherNet/IP Rockwell Add-on-Profile Level 3, Faceplate for FactoryTalk SE IO data Input (T --> O) Device status and top-priority diagnostic message Measured values: • 16 AI (analog input) + status + unit •...

  • Page 165: Power Supply

    Liquiline CM442/CM444/CM448 Technical data 15.9 Power supply 15.9.1 Supply voltage CM442 Depending on the version: 100 to 230 V AC ± 15 %, 50/60 Hz 24 V AC/DC +20 / -15 %, 50/60 Hz CM444 and CM448 Depending on the version: 100 to 230 V AC ±...
  • Page 166 Technical data Liquiline CM442/CM444/CM448 15.9.3 Cable specification Cable gland Permitted cable diameter M16x1.5 mm 4 to 8 mm (0.16 to 0.32") M12x1.5 mm 2 to 5 mm (0.08 to 0.20") M20x1.5 mm 6 to 12 mm (0.24 to 0.48") NPT3/8"...

  • Page 167: 15.10 Performance Characteristics

    Liquiline CM442/CM444/CM448 Technical data 15.10 Performance characteristics 15.10.1 Response time Current outputs = max. 500 ms for an increase from 0 to 20 mA Current inputs = max. 330 ms for an increase from 0 to 20 mA Digital inputs and outputs = max.

  • Page 168: 15.11 Environment

    Technical data Liquiline CM442/CM444/CM448 15.11 Environment 15.11.1 Ambient temperature range CM442 –20 to 60 ˚C (0 to 140 ˚F) CM444 • –20 to 55 ˚C (0 to 130 ˚F) in general, with the exception of the packages listed under the 2nd bullet point •...
  • Page 169 Liquiline CM442/CM444/CM448 Technical data 15.11.4 Degree of protection IP 66/67, impermeability and corrosion resistance as per NEMA TYPE 4X 15.11.5 Vibration resistance Environmental tests Vibration test based on DIN EN 60068-2, October 2008 Vibration test based on DIN EN 60654-3, August 1998...

  • Page 170: 15.12 Mechanical Construction

    Installation and operation in hazardous environment Class I Div. 2 Liquiline CM442/CM444/CM448 15.12 Mechanical construction 15.12.1 Dimensions --> "Installation" section 15.12.2 Weight Approx. 2.1 kg (4.63 lbs), depending on the version 15.12.3 Material Lower housing section PC-FR Display cover PC-FR...

  • Page 171: Control Drawing

    Liquiline CM442/CM444/CM448 Installation and operation in hazardous environment Class I Div. 2 16.2 Control Drawing a0018207 Endress+Hauser...

  • Page 172: Index

    Liquiline CM442/CM444/CM448 Index Accessories ......145 Cable cross-section ....162 Activation codes .
  • Page 173 Liquiline CM442/CM444/CM448 Configuration Actions ......49 Data management Customized text ..... . 50 Activation code .
  • Page 174 Liquiline CM442/CM444/CM448 Display ......46, 55 Assignment views..... 57 Fieldbus .
  • Page 175 Liquiline CM442/CM444/CM448 Inputs Mechanical construction Binary ......86 Dimensions ..... 14, 170 Installation .
  • Page 176 Liquiline CM442/CM444/CM448 Repeatability ......167 Reset ....... 132 Pending diagnostic message .
  • Page 177 Liquiline CM442/CM444/CM448 State of the art ......8 Status display ......46 Storage temperature .
  • Page 178 www.addresses.endress.com...

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