Endress+Hauser Liquiline CM442R Operating Instructions Manual
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Endress+Hauser Liquiline CM442R Operating Instructions Manual

Universal four-wire multichannel controller for cabinet installation
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BA01225C/07/EN/05.15
71296082
Valid as of:
Softwareversion 01.05.02
Products
Operating Instructions
Liquiline
CM442R/CM444R/CM448R
Universal four-wire multichannel controller for
cabinet installation
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Summary of Contents for Endress+Hauser Liquiline CM442R

  • Page 1 Products Solutions Services BA01225C/07/EN/05.15 71296082 Valid as of: Softwareversion 01.05.02 Operating Instructions Liquiline CM442R/CM444R/CM448R Universal four-wire multichannel controller for cabinet installation...

  • Page 3: Table Of Contents

    Liquiline CM442R/CM444R/CM448R Table of contents Document information ..5 Operation options ..44 Warnings ......5 Overview .
  • Page 4 Liquiline CM442R/CM444R/CM448R 13 Repair....135 13.1 Spare parts ..... . . 135 13.2 Return .

  • Page 5: Document Information

    Liquiline CM442R/CM444R/CM448R Document information Document information Warnings The structure, signal words and color coding of the warnings follow 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 CM442R/CM444R/CM448R Documentation As a supplement to these Operating Instructions the following manuals are available on the product pages on the Internet: • Brief Operating Instructions Liquiline CM44xR, KA01160C • Operating Instructions Memosens, BA01245C – Software description for Memosens inputs –...

  • Page 7: Basic Safety Instructions

    Liquiline CM442R/CM444R/CM448R 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

    Basic safety instructions Liquiline CM442R/CM444R/CM448R 2.2.3 Non-designated use and misusage NOTICE Objects stored on top of the housing May cause a short-circuit or fire. Failure of individual cabinet components or complete failure of the measuring point is possible ‣ Never place any objects such as tools, cables, paper, food, liquid containers etc. on top of the housing.

  • Page 9: Operational Safety

    Liquiline CM442R/CM444R/CM448R Basic safety instructions Operational safety ‣ Prior to commissioning the entire measuring point, check that all connections are correct. Ensure that electrical cables and hose connections are not damaged. ‣ Do not operate damaged products, and secure them against unintentional commissioning.

  • Page 10: Device Description

    Device description Liquiline CM442R/CM444R/CM448R Device description Overview a0020573 Fig. 1: CM44xR with optional, external display (excluding cables) CM448R External display (optional) Extension modules (optional) Base module Shock protection, dummy module CM442R Terminal strip External power unit (CM444R or CM448R only)

  • Page 11: Device Architecture

    Liquiline CM442R/CM444R/CM448R Device description Device architecture 3.2.1 Slot and port assignment a0019832 a0019833 Fig. 2: 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 12 Device description Liquiline CM442R/CM444R/CM448R 3.2.2 Terminal diagram The unique terminal name is derived from: 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 13: Incoming Acceptance And Product Identification

    Liquiline CM442R/CM444R/CM448R Incoming acceptance and product identification 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 14: Scope Of Delivery

    Incoming acceptance and product identification Liquiline CM442R/CM444R/CM448R 4.2.2 Identifying the product Product page www.endress.com/cm442r www.endress.com/cm444r www.endress.com/cm448r Interpreting the order code The order code and serial number of your device can be found in the following locations: • On the nameplate •...

  • Page 15: Installation

    Liquiline CM442R/CM444R/CM448R Installation 4.4.3 cETLus NI Cl. I, Div. 2 (CM444R and CM448R only) • Conforms to UL STD 61010-1, ANSI/ISA STD 12.12.01, FM STD 3600 and FM STD 3611 • Certified to CSA STD C22.2 NO. 61010-1 and CSA STD C22.2 NO. 213 •...
  • Page 16 Installation Liquiline CM442R/CM444R/CM448R ‣ Recommended installation direction: horizontal. The specified ambient conditions, in particular the ambient temperatures, apply here only. ‣ A vertical orientation is possible. However, in this case, additional fixing clips are required at the place of installation to keep the device in position on the DIN rail.
  • Page 17 Liquiline CM442R/CM444R/CM448R Installation 5.1.2 Wall mounting Using eyelets and slotted holes on housing a0020541 Fig. 6: Hole pattern for wall mounting in mm (inch) 5.1.3 External display The mounting plate is also used as the drill template. The markings on the side serve as a guide when marking the position for the drill holes.

  • Page 18: Mounting The Measuring Device

    Installation Liquiline CM442R/CM444R/CM448R 5.1.4 Cable length for optional display The length of the display cable delivered with the kit is 3 m (10 ft). The maximum permitted is 5 m (16 ft). Mounting the measuring device 5.2.1 DIN rail mounting The mounting procedure is the same for all devices.
  • Page 19 Liquiline CM442R/CM444R/CM448R Installation 5.2.2 Wall mounting Mounting material (screws, dowels) are not included in the scope of delivery and must be provided by the customer. CM444R and CM448R: The external power unit can only be mounted on a DIN rail.
  • Page 20 Installation Liquiline CM442R/CM444R/CM448R a0019871 a0019872 a0019873 a0019874 a0019903 a0019881 Endress+Hauser...

  • Page 21: Post-Installation Check

    Liquiline CM442R/CM444R/CM448R Installation NOTICE Installation errors Damage e.g. to the cable, or malfunctions ‣ Lay the cables in such a way that they cannot get squashed e.g. when closing the cabinet door. ‣ Verify that you have actually put the display cable into...

  • Page 22: Electrical Connection

    Electrical connection Liquiline CM442R/CM444R/CM448R 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 23 Liquiline CM442R/CM444R/CM448R Electrical connection 6.1.2 Remote operation via PROFIBUS DP a0015874 Fig. 10: PROFIBUS DP Terminating resistor Endress+Hauser...
  • Page 24 Electrical connection Liquiline CM442R/CM444R/CM448R 6.1.3 Remote operation via Modbus RS485 a0015875 Fig. 11: Modbus RS485 Terminating resistor 6.1.4 Remote operation via ethernet/Web server/Modbus TCP/EtherNet/IP a0015876 Fig. 12: Modbus TCP and/or Ethernet, EtherNet/IP Endress+Hauser...

  • Page 25: Connecting The Measuring Device

    Liquiline CM442R/CM444R/CM448R 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 26 Electrical connection Liquiline CM442R/CM444R/CM448R All other plug-in terminals a0012694 a0012695 a0012696 Fig. 16: Insert the screwdriver until the Fig. 17: Insert the cable until the limit Fig. 18: Remove the screwdriver (closes limit stop (opens the terminal) stop the terminal) 6.2.2...
  • Page 27 Liquiline CM442R/CM444R/CM448R Electrical connection NOTICE Incorrect connection and cable run not separate Interference on signal or display cable, incorrect measured values or failure of display may occur ‣ Do not connect the cable shield of the display cable to PE (terminal strip of device)! ‣...

  • Page 28: Connecting The Sensors

    Electrical connection Liquiline CM442R/CM444R/CM448R NOTICE Incorrect connection and cable run not separate Interference on signal or display cable, incorrect measured values or failure of display may occur ‣ Do not connect the cable shield of the display cable to PE (terminal strip of device)! ‣...
  • Page 29 Liquiline CM442R/CM444R/CM448R Electrical connection 6.3.2 Connecting the functional ground You must always connect the terminal strip with PE from the central node in the cabinet. Use the conductor with cable clamp that is included with the Memosens cable to connect the functional ground to the terminal strip of the CM44xR.

  • Page 30: Connecting Additional Inputs, Outputs Or

    Electrical connection Liquiline CM442R/CM444R/CM448R a0016197 Fig. 26: Sensors with and without additional supply voltage at sensor module 2DS Connecting additional inputs, outputs or relays WARNING Module not covered No shock protection. Danger of electric shock! ‣ If you are modifying or extending your hardware, always fill the slots from left to right. Do not leave any gaps.
  • Page 31 Liquiline CM442R/CM444R/CM448R Electrical connection 6.4.1 Digital inputs and outputs DIO module a0019917 a0019836 Fig. 27: Module front Fig. 28: Wiring diagram 6.4.2 Current inputs Module 2AI a0016184 a0015761 Fig. 29: Module front Fig. 30: Wiring diagram Endress+Hauser...

  • Page 32: Relays

    Electrical connection Liquiline CM442R/CM444R/CM448R 6.4.3 Current outputs Module 2AO Module 4AO a0016179 a0015759 a0016178 a0015760 Fig. 31: Module front Fig. 32: Wiring diagram Fig. 33: Module front Fig. 34: Wiring diagram 6.4.4 Relays Module 2R Module 4R a0016181 a0015758 a0016182 a0015757 Fig.
  • Page 33 Liquiline CM442R/CM444R/CM448R Electrical connection Example: Connecting the cleaning unit 71072583 for CAS40D a0016195 Fig. 39: Connecting the cleaning unit for CAS40D Example: Connecting the injector cleaning unit Chemoclean CYR10 a0016194 Fig. 40: Connecting the injector cleaning unit CYR10 External power supply...

  • Page 34: Connecting Digital Communication

    Electrical connection Liquiline CM442R/CM444R/CM448R Connecting digital communication 6.5.1 Module 485 a0016173 a0015762 Fig. 41: Bus connections on module 485 Fig. 42: Wiring diagram for module 485 To supply power to an external terminating resistor for bus termination LEDs on front of module...
  • Page 35 Liquiline CM442R/CM444R/CM448R 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 When the switch is set to "ON", the user settings for Ethernet addressing are saved and connection settings programmed at the factory are activated: IP address=192.168.1.212, subnet mask=255.255.255.0, gateway=0.0.0.0, DHCP=off...
  • Page 36 Electrical connection Liquiline CM442R/CM444R/CM448R LEDs on front of module Designation Color Description Power Supply voltage is applied and module is initialized Bus failure Not used System failure System failure Communication Sending or receiving Modbus message DIP switches on front of module...
  • Page 37 Liquiline CM442R/CM444R/CM448R 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. 45: DIP switches for internal terminating resistor ‣ Using a suitable tool, such as a tweezers, set all 4 DIP switches to the "ON" position.

  • Page 38: Hardware Settings

    Electrical connection Liquiline CM442R/CM444R/CM448R Hardware settings Setting the bus address ‣ 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. If you configure an invalid address, software addressing is automatically enabled via the local configuration or via the fieldbus.

  • Page 39: Post-Connection Check

    Liquiline CM442R/CM444R/CM448R 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 40: System Integration

    System integration Liquiline CM442R/CM444R/CM448R System integration Web server 7.1.1 Connection ‣ Connect the PC communication cable to the RJ45 port of module 485 or module ETH. a0016228 Fig. 50: Ethernet connection 7.1.2 Creating the data connection 1. Start your PC.
  • Page 41 • You can make your settings conveniently via the computer keyboard. Instead of using an Internet browser, you can also use FieldCare for configuration via ethernet. The ethernet DTM required for this is an integral part of the "Endress+Hauser Interface Device DTM Library".

  • Page 42: Service Interface

    System integration Liquiline CM442R/CM444R/CM448R 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 43: Fieldbuses

    Liquiline CM442R/CM444R/CM448R 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 44: Operation Options

    Operation options Liquiline CM442R/CM444R/CM448R Operation options Overview 8.1.1 Display and operating elements (only with optional display) a0020580 Fig. 53: Overview of operation Display (lights up red in the event of an error) Navigator (jog/shuttle and press/hold function) Soft keys (function depends on the menu) 8.1.2...

  • Page 45: Access To The Operating Menu Via The Local Display

    Liquiline CM442R/CM444R/CM448R Operation options Access to the operating menu via the local display 8.2.1 Operating concept (with optional display) a0013353-de a0013354-de Fig. 55: Pressing the soft key: selecting the menu directly Fig. 56: Turning the navigator: moving the cursor in the...

  • Page 46: Configuration Options

    Operation options Liquiline CM442R/CM444R/CM448R 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 47 Liquiline CM442R/CM444R/CM448R 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/Operation/Display/Contrast 8.3.4 Actions • You trigger an action with the appropriate function.
  • Page 48 Operation options Liquiline CM442R/CM444R/CM448R 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 49: Commissioning

    Liquiline CM442R/CM444R/CM448R Commissioning 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 50 Commissioning Liquiline CM442R/CM444R/CM448R 9.2.2 Display settings Path: Menu/Operation/Display Function Options Info Contrast 5 to 95 % Adjust the screen settings to suit your working environment. Factory setting Backlight="Automatic" 50 % The backlighting is switched off automatically after a short time if a button is not pressed. It switches back on...
  • Page 51 Liquiline CM442R/CM444R/CM448R Commissioning Path: Menu/Operation/Display Function Options Info Source of data Options Select a data source. You can choose from connected • None sensors, available controllers, current inputs, fieldbus Signal type= "Source • Sensor inputs signals and mathematical functions. of data"...

  • Page 52: Basic Setup

    Commissioning Liquiline CM442R/CM444R/CM448R Basic setup Making basic settings 1. Go to the "Setup/Basic setup" menu. Make the following settings: 2. Device tag: Give your device any name of your choice (max. 32 characters). 3. Set date: Correct the set date if necessary.

  • Page 53: Operation

    Liquiline CM442R/CM444R/CM448R 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 54 Operation Liquiline CM442R/CM444R/CM448R 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 Spectral SAC, temperature Main value, Raw value, Temperature...

  • Page 55: General Settings

    Liquiline CM442R/CM444R/CM448R Operation Icon Location Description 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 If two or more diagnostics messages occur simultaneously, only the icon for the message with the highest priority is shown on the display (for the order of priority according to NAMUR, see the "Changing diagnostic information"...
  • Page 56 Operation Liquiline CM442R/CM444R/CM448R Path: Menu/Setup/General settings Function Options Info Error current 0.0 to 23.0 mA The function meets NAMUR NE43. Set the current value that should be output at the Factory setting current outputs in the event of an error.
  • Page 57 Liquiline CM442R/CM444R/CM448R Operation Path: Menu/Setup/General settings/Date/Time Function Options Info Time zone Options If no time zone is selected, then Greenwich Mean Time • None is used (London). • Choice of 35 time zones Factory setting None Options The controller adapts the summertime/normal time •...
  • Page 58 Operation Liquiline CM442R/CM444R/CM448R 10.2.4 Logbooks Logbooks record the following events: • Calibration/adjustment events • Operator events • Diagnostic events Here you define how the logbooks should store the data. In addition, you can also define individual data logbooks . Assign the logbook name and select the measured value to be recorded.
  • Page 59 Liquiline CM442R/CM444R/CM448R Operation Path: Menu/Setup/General settings/Logbooks Function Options Info Source of data Options Select a data source for the logbook entries. You can • Sensor inputs choose from connected sensors, available controllers, • Controller current inputs, fieldbus signals and mathematical •...
  • Page 60 Operation Liquiline CM442R/CM444R/CM448R Path: Menu/Setup/General settings/Logbooks Function Options Info Logbook name Customized text, 20 You can change the name here again. characters Scan time 00:00:01 to 01:00:00 As above Minimum interval between two entries Factory setting Format: HH:MM:SS 00:01:00 Data logbook...
  • Page 61 Liquiline CM442R/CM444R/CM448R Operation Example for setting up a new data logbook (for sensors for instance) 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 62 Operation Liquiline CM442R/CM444R/CM448R Path: ... /Extended setup/Diagnostics settings/Diag. behavior Function Options Info Diag. output Options Before you can assign the message to an output, you • None must first configure a relay output to "Diagnostics" (Menu/Setup/Outputs, assign the "Diagnostics" function Factory setting and set the Operating mode to "as assigned").
  • Page 63 Liquiline CM442R/CM444R/CM448R Operation Path: Menu/Setup/General settings/Extended setup/PROFIBUS Function Options Info Termination Read only If the device is the last in the bus, you can terminate via the hardware. → "Electrical connection" section Bus address 1 to 125 If you have addressed the bus via hardware (DIP switches on the module, →...
  • Page 64 Operation Liquiline CM442R/CM444R/CM448R EtherNet/IP EtherNet Industrial Protocol is an open fieldbus standard of the Open DeviceNet Vendor Association (ODVA). → www.odva.org Path: Menu/Setup/General settings/Extended setup/Ethernet Function Options Info Enable Options You can switch ethernet communication on and off at • Off this point.
  • Page 65 Liquiline CM442R/CM444R/CM448R Operation Web server Path: Menu/Setup/General settings/Extended setup/Webserver Function Options Info Webserver Options You can switch web server communication on and off at • Off this point. • On Factory setting Webserver TCP Port 80 Read only The Transmission Control Protocol (TCP) is an arrangement (protocol) as to how data should be exchanged between computers.
  • Page 66 Operation Liquiline CM442R/CM444R/CM448R 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. To install a firmware update, you must have the update available on an SD card.
  • Page 67 Liquiline CM442R/CM444R/CM448R Operation 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 68 Operation Liquiline CM442R/CM444R/CM448R Activation code You require activation codes for: • Additional functions • Software upgrades • Modifications, e.g. deactivation of fieldbus protocols 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 or modifying the device.

  • Page 69: Current Inputs

    Liquiline CM442R/CM444R/CM448R Operation 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 x:y Function Options...

  • Page 70: Outputs

    Operation Liquiline CM442R/CM444R/CM448R 10.4 Outputs 10.4.1 Current outputs Under Menu/Setup/General settings set the current range of 0 to 20 mA or 4 to 20 mA. Possible applications • For outputting a measured value to a process control system or an external recorder •...
  • Page 71 Liquiline CM442R/CM444R/CM448R Operation Measured valuedepending on theSource of data Source of data Measured value pH Glass Options • Raw value mV pH ISFET • pH • Temperature Options • Temperature • ORP mV • ORP % Oxygen (amp.) Options • Temperature Oxygen (opt.)
  • Page 72 Operation Liquiline CM442R/CM444R/CM448R Measured valuedepending on theSource of data Source of data Measured value Controller 1 Options • Bipolar(only current outputs) Controller 2 • Unipolar+ • Unipolar- Mathematical functions All the mathematical functions can also be used as a data source and the calculated value can be used as the measured value.
  • Page 73 Liquiline CM442R/CM444R/CM448R 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 74 Operation Liquiline CM442R/CM444R/CM448R 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 75 Liquiline CM442R/CM444R/CM448R Operation Outputting diagnostics messages via the relay If a relay is defined as a diagnostic relay (Function="Diagnostics"), it works in the "fail-safe mode". This means that the relay is always energized ("normally closed", n.c.) in the basic state if an error is not present.
  • Page 76 Operation Liquiline CM442R/CM444R/CM448R 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 77 Liquiline CM442R/CM444R/CM448R 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 78: Binary Inputs And Outputs

    Operation Liquiline CM442R/CM444R/CM448R 10.5 Binary inputs and outputs Hardware options, e.g. module "DIO" with 2 digital inputs and 2 digital outputs or fieldbus module "485" enable the following: • via a digital input signal – measuring range switching for conductivity (upgrade code required, see accessories) –...
  • Page 79 Liquiline CM442R/CM444R/CM448R Operation 10.5.1 Application examples Chlorine control with feedforward control a0020123 Fig. 61: 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 80 Operation Liquiline CM442R/CM444R/CM448R 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 81 Liquiline CM442R/CM444R/CM448R Operation CM44xR as "cleaning master" An external trigger actuates a cleaning at the master. A cleaning unit is connected over a relay or a binary output, for example. The cleaning trigger is transferred to another device via a binary output. This does not have its own connected cleaning unit, but its sensors are installed in the medium affected by cleaning the master and are set to hold by the trigger.
  • Page 82 Operation Liquiline CM442R/CM444R/CM448R Path: Menu/Setup/Inputs/Binary input x:y Function Options Info Meas. value format Options Specify the number of decimal places. • # • #.# • #.## • #.### Factory setting #.## Input mode Options Frequency • Frequency Display in Hz in the measuring menu •...
  • Page 83 Liquiline CM442R/CM444R/CM448R Operation Path: Menu/Setup/Outputs/Binary output x:y Function Options Info Signal type Options Select the signal type. • Static signal Static signal • PFM Comparable to a relay: output of a diagnostic status or a Factory setting limit contactor Static signal You can output a measured value, e.g.
  • Page 84 Operation Liquiline CM442R/CM444R/CM448R Path: Menu/Setup/Outputs/Binary output x:y Function Options Info Hold behavior Options Freeze • Freeze The device freezes the last value. • Fixed value Fixed value • None You define a fixed current value that is transmitted at Factory setting the output.

  • Page 85: Additional Functions

    Liquiline CM442R/CM444R/CM448R Operation Path: Menu/Setup/Outputs/Binary output x:y Function Options Info Operating mode Options as assigned • as assigned With this selection, the diagnosis messages are Function= "Diagnostics • Namur M transmitted over the binary output that you individually message" • Namur S allocated to it.
  • Page 86 Operation Liquiline CM442R/CM444R/CM448R Measured valuedepending on theSource of data Source of data Measured value pH Glass Options • Raw value mV pH ISFET • pH • Temperature Options • Temperature • ORP mV • ORP % Oxygen (amp.) Options • Temperature Oxygen (opt.)
  • Page 87 Liquiline CM442R/CM444R/CM448R Operation Measured valuedepending on theSource of data Source of data Measured value Controller 1 Options • Bipolar(only current outputs) Controller 2 • Unipolar+ • Unipolar- Mathematical functions All the mathematical functions can also be used as a data source and the calculated value can be used as the measured value.
  • Page 88 Operation Liquiline CM442R/CM444R/CM448R Path: Menu/Setup/Additional functions/Limit switches/Limit switches 1 to 8 Function Options Info Limit value Settings Operating mode="Above limit check" or "Below limit Depends on the measured check" value a0018080 Fig. 63: Exceeding (A) and undershooting (B) a limit value (without hysteresis and switch-on delay)
  • Page 89 Liquiline CM442R/CM444R/CM448R 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. 64: Monitoring outside (A) and within (B) a range (without hysteresis and switch-on delay)
  • Page 90 Operation Liquiline CM442R/CM444R/CM448R 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 91 Liquiline CM442R/CM444R/CM448R Operation 10.6.2 Controller Controller structure in Laplace representation a0015007 Fig. 67: Block diagram of the controller structure Neutral zone Integral value Output limiting Derivative value   Gain (P-value) Damping time constant with = 0 to 1 Integral action time (I-value)
  • Page 92 Operation Liquiline CM442R/CM444R/CM448R 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, →...
  • Page 93 Liquiline CM442R/CM444R/CM448R 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 94 Operation Liquiline CM442R/CM444R/CM448R 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 95 Liquiline CM442R/CM444R/CM448R 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 96 Operation Liquiline CM442R/CM444R/CM448R 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 97 Liquiline CM442R/CM444R/CM448R 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 98 Operation Liquiline CM442R/CM444R/CM448R 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 99 Liquiline CM442R/CM444R/CM448R 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 100 Operation Liquiline CM442R/CM444R/CM448R 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 101 Liquiline CM442R/CM444R/CM448R 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 33 ). Path: Menu/Setup/Additional functions/Cleaning/Cleaning 1 ... 4/Standard clean...
  • Page 102 Operation Liquiline CM442R/CM444R/CM448R 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. 68: Layout of a measuring point with regular cleaning with acid and base Compressed air connection for "Measure"...
  • Page 103 Liquiline CM442R/CM444R/CM448R 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 104 Operation Liquiline CM442R/CM444R/CM448R 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 105 Liquiline CM442R/CM444R/CM448R 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 106 Operation Liquiline CM442R/CM444R/CM448R 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 107 Liquiline CM442R/CM444R/CM448R 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 108 Operation Liquiline CM442R/CM444R/CM448R Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/rH calculation Function Options Info pH source Connected pH sensor Set the input for the pH sensor and the input for the ORP sensor. Measured value interrogation is obsolete as you...
  • Page 109 Liquiline CM442R/CM444R/CM448R Operation Dual conductivity You can subtract two conductivity values and use the result, for example, to monitor the efficiency of an ion exchanger. Path: Menu/Setup/Additional functions/Mathematical functions/MF 1 to 6/Mode/Dual conductivity Function Options Info Calculation Options On/off switch for the function •...
  • Page 110 Operation Liquiline CM442R/CM444R/CM448R 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 111 Liquiline CM442R/CM444R/CM448R 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 112 Operation Liquiline CM442R/CM444R/CM448R 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 113 Liquiline CM442R/CM444R/CM448R 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) • NaOH 25..50% NaOH: 25 to 50%, 2 to 80 °C (36 to 176 °F) •...
  • Page 114 Operation Liquiline CM442R/CM444R/CM448R 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 115: Diagnostics And Troubleshooting

    Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting Diagnostics and troubleshooting The color of the display background changes to red if a diagnostics message for error category "F" occurs. 11.1 General troubleshooting 11.1.1 Troubleshooting A diagnostic message appears on the display or via the fieldbus, measured values are not plausible, or you identify a fault.

  • Page 116: Diagnostic Information On The Onsite

    Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R Problem Possible cause Tests and/or remedial measures Implausible measured Inputs defective First perform tests and take measures as outlined in values "Process-specific errors" section Current output, incorrect Measuring input test: current value – Connect the Memocheck Sim CYP03D to the No current output signal input and use this to test its function.

  • Page 117: Adjusting Diagnostic Information

    Liquiline CM442R/CM444R/CM448R 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 118 Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R Deactivate the message, for example (Diagnostics message to "Off"). Configuration options The list of diagnostic messages displayed depends on the path selected. There are device-specific messages, and messages that depend on what sensor is connected.

  • Page 119: Overview Of Diagnostic Information

    Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting 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 120 Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R Message Factory settings Tests or remedial measures Cat. Diag. Error on/off current Sensor check No measurement signal from sensor -> Check the sensor connection -> Check sensor, replace if necessary Factory reset Factory reset is performed Param.
  • Page 121 Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting Message Factory settings Tests or remedial measures Cat. Diag. Error on/off current Hold active CH1 ... 8 Output values and status of the channels are on hold. Wait until the hold is released again. Modbus Watchdog The device did not receive a Modbus telegram from the master within the specified time.

  • Page 122: Pending Diagnostic Messages

    Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R 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 123: Event Logbook

    Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting 11.9 Event logbook 11.9.1 Available logbooks Types of logbooks • Logbooks physically available (all apart from the overall logbook) • Database view of all logbooks (=overall logbook) Logbook Visible in Max. Can be Logbook Entries...
  • Page 124 Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R 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 125 Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting a0016688 Fig. 69: Simultaneous display of two graphs, the upper one is "selected" 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>...

  • Page 126: 11.10 Simulation

    Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R Diagnostics/Logbooks Function Options Info Save logbooks File format Options Save the logbook in the preferred file format. • CSV You can then open the CSV file you saved on the PC in • FDM MS Excel, for example, and process it further You can import the FDM files into Fieldcare and archive them so they are tamper-proof.

  • Page 127: 11.11 Device Test

    Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting Diagnostics/Simulation Function Options Info Alarm relay Simulation of a relay state Relay x:y This menu appears once for each relay. Simulation Options If you simulate the relay state, this is indicated on the • On display by a simulation icon in front of the relay display.

  • Page 128: 11.12 Reset Measuring Instrument

    Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R 11.12 Reset measuring instrument Diagnostics/Reset Function Options Info Device reset Options Restart and keep all the settings • OK • ESC Factory default Options Restart with factory settings • OK Settings that have not been saved are lost.
  • Page 129 Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting Diagnostics/System information Function Options Info PROFIBUS DP Read only Module status • DPV0 state only with PROFIBUS DP option Ethernet Read only Ethernet-specific information • Enable Display depends on the fieldbus protocol used. only with Ethernet, •...

  • Page 130: 11.14 Firmware History

    Diagnostics and troubleshooting Liquiline CM442R/CM444R/CM448R 11.13.2 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 131 Liquiline CM442R/CM444R/CM448R Diagnostics and troubleshooting Date Version Changes to software Documentation: edition 12/2013 01.05.00 Extension BA01225C/07/EN/02.13 • 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 – External temperature signal via current input •...

  • Page 132: Maintenance

    Maintenance Liquiline CM442R/CM444R/CM448R 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 133: Cleaning

    Liquiline CM442R/CM444R/CM448R Maintenance 12.2 Cleaning 12.2.1 External display (in installed state) 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 134 Maintenance Liquiline CM442R/CM444R/CM448R 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 135: Repair

    Liquiline CM442R/CM444R/CM448R Repair Repair 13.1 Spare parts a0020679 Fig. 70: Spare parts: You can find the names of spare parts and their order numbers in the following table. Endress+Hauser...
  • Page 136 71222273 • Control cabinet installation housing, complete Kit CM44x/CM44xR: electronics module backplane 71101457 • Backplane complete • To be replaced only by Endress+Hauser Service Kit CM444R/448R 71222276 • Control cabinet installation housing, complete Kit CM44x/CM44xR: electronics module extension backplane 71141366 •...
  • Page 137 Liquiline CM442R/CM444R/CM448R Repair Item Kit CM44x Order number 6, 7, 8, 10 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 138: 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 139: Accessories

    Liquiline CM442R/CM444R/CM448R 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 Measuring cable Memosens data cable CYK10 •...
  • Page 140 Accessories Liquiline CM442R/CM444R/CM448R Orbipore CPS91D • pH sensor with Memosens technology • Open aperture junction for media with high potential for fouling • Order as per product structure (→ Online Configurator, www.endress.com/cps91d) • Technical Information TI00375C/07/EN Orbipac CPF81D • pH compact sensor for installation or immersion operation in industrial water and wastewater •...
  • Page 141 Liquiline CM442R/CM444R/CM448R Accessories Orbipore CPS92D • ORP sensor with Memosens technology • Open aperture diaphragm for media with high potential for fouling • Order as per product structure (→ Online Configurator, www.endress.com/cps92d) • Technical Information TI00435C/07/EN 14.2.4 pH-ISFET sensors Tophit CPS471D •...
  • Page 142 Accessories Liquiline CM442R/CM444R/CM448R 14.2.6 Inductive conductivity sensors Indumax CLS50D • Inductive conductivity sensor with very good resistance properties for standard, Ex and high-temperature applications • Memosens protocol • Order as per product structure (→ Online Configurator, www.endress.com/cls50d) • Technical Information TI00182C/07/EN Indumax H CLS54D •...
  • Page 143 Liquiline CM442R/CM444R/CM448R Accessories Oxymax COS61D • Optical oxygen sensor for drinking water and industrial water measurement • Measuring principle: quenching • Memosens protocol • Material: stainless steel 1.4571 (AISI 316Ti) • Order as per product structure (→ online Configurator, www.endress.com/cos61d) •...

  • Page 144: Additional Functionality

    Accessories Liquiline CM442R/CM444R/CM448R 14.2.12 SAC and nitrate sensors Viomax CAS51D • SAC and nitrate measurement in drinking water and wastewater • With Memosens protocol • Order as per product structure (→ Online Configurator, www.endress.com/cas51d) • Technical Information TI00459C/07/EN 14.2.13 Interface measurement Turbimax CUS71D •...
  • Page 145 Liquiline CM442R/CM444R/CM448R Accessories Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48/CA80: extension module DIO • 2 x digital input • 2 x digital output • Auxiliary voltage supply for digital output • Order no. 71135638 Kit CM442/CM444/CM448/CM442R/CM444R/CM448R/CSF48/CA80: extension module 485 • Ethernet configuration • Can be extended to PROFIBUS DP or Modbus RS485 or Modbus TCP or EtherNet/IP. This requires an additional activation code which can be ordered separately (...
  • Page 146 Accessories Liquiline CM442R/CM444R/CM448R 14.3.2 Firmware and activation codes SD card with Liquiline firmware • Industrial Flash Drive, 1 GB • Order No. 71127100 You must quote the serial number of your device when ordering the activation code. Activation code for digital HART communication •...

  • Page 147: Software

    Liquiline CM442R/CM444R/CM448R Accessories 14.4 Software Memobase Plus CYZ71D • PC software for supporting laboratory calibration • Visualization and documentation of sensor management • Database storage of sensor calibrations • Order as per product structure, www.endress.com/cyz71d • Technical Information TI00502C/07/EN MS20 Field Data Manager software •...
  • Page 148 Accessories Liquiline CM442R/CM444R/CM448R Fieldgate FXA320 • Gateway for the remote interrogation of 4-20 mA measuring devices via a Web browser • Technical Information TI00025S Fieldgate FXA520 • Gateway for the remote diagnostics and configuration of connected devices via a Web browser •...

  • Page 149: Technical Data

    Liquiline CM442R/CM444R/CM448R 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 150: Digital Inputs, Passive

    Technical data Liquiline CM442R/CM444R/CM448R 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 151: Output

    Liquiline CM442R/CM444R/CM448R 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 152 Technical data Liquiline CM442R/CM444R/CM448R Ethernet and Modbus TCP Signal encoding IEEE 802.3 (ethernet) Data transmission rate 10 / 100 MBd Galvanic isolation Connection RJ45, IP address DHCP (default) or configuration via menu EtherNet/IP Signal encoding IEEE 802.3 (ethernet) Data transmission rate...

  • Page 153: Digital Outputs, Passive

    Liquiline CM442R/CM444R/CM448R 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 154: Relay Outputs

    Technical data Liquiline CM442R/CM444R/CM448R 15.6.4 Cable specification Cable type Recommended: shielded cable Cross-section Max. 2.5 mm (14 AWG) 15.7 Relay outputs 15.7.1 Relay types • 1 single-pin changeover contact (alarm relay) • 2 or 4 one-pin changeover contacts, (optionally with extension modules) 15.7.2 Relay switching capacity...

  • Page 155: Protocol-Specific Data

    Liquiline CM442R/CM444R/CM448R Technical data Minimum load (typical) • Min. 100 mA for 5 V DC • Min. 1 mA for 24 V DC • Min. 5 mA for 24 V AC • Min. 1 mA for 230 V AC 15.7.3 Cable cross-section Max.
  • Page 156 Technical data Liquiline CM442R/CM444R/CM448R 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 157: Power Supply

    Liquiline CM442R/CM444R/CM448R Technical data 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 158: 15.10 Performance Characteristics

    Technical data Liquiline CM442R/CM444R/CM448R 15.9.3 Power consumption CM442R Depending on supply voltage • 100 to 230 V AC and 24 V AC: Max. 55 VA • 24 V DC: Max. 22 W CM444R and CM448R Depending on supply voltage • 100 to 230 V AC: Max.

  • Page 159: 15.11 Environment

    Liquiline CM442R/CM444R/CM448R Technical data 15.10.4 Measured error current inputs and outputs Typical measured errors: < 20 μA (for current values < 4 mA) < 50 μA (for current values 4 to 20 mA) at 25 °C (77° F) in each case Additional deviation depending on the temperature: <...
  • Page 160 Technical data Liquiline CM442R/CM444R/CM448R – CM444R-**M4DA5FH*+... – CM444R-**M4DA5FI*+... – CM444R-**M4DA5FK*+... – CM444R-**M4DA5FM*+... CM448R • Generally 0 to 55 °C (32 to 130 °F), with the exception of packages under the second point in the list • 0 to 50 °C (32 to 120 °F) for the following packages: –...
  • Page 161 Liquiline CM442R/CM444R/CM448R Technical data 15.11.3 Humidity DIN rail device 5 to 85%, not condensating External display (in installed state) 10 to 95%, not condensating 15.11.4 Degree of protection DIN rail device IP 20 shock protection External display IP66 front-panel, when installed correctly and with appropriate protective enclosure 15.11.5 Climate class...

  • Page 162: 15.12 Mechanical Construction

    Installation and operation in Class I Div. 2 environment (CM444R and CM448R) Liquiline CM442R/CM444R/CM448R 15.12 Mechanical construction 15.12.1 Dimensions → "Installation" section 15.12.2 Weight Depending on version CM442R (fully configured) Approx. 0.45 kg (1 lbs) CM444R and CM448R (fully configured) Approx. 0.95 kg (2.1 lbs) Individual module Approx.

  • Page 163: Control Drawing

    Liquiline CM442R/CM444R/CM448R Installation and operation in Class I Div. 2 environment (CM444R and CM448R) 16.2 Control Drawing Endress+Hauser...

  • Page 164: Index

    Liquiline CM442R/CM444R/CM448R Index Check Function......49 Accessories ......139 Post-connection .
  • Page 165 Liquiline CM442R/CM444R/CM448R Connection Device test......127 Cable terminals......25 Device type .
  • Page 166 Liquiline CM442R/CM444R/CM448R EMC ........161 Environment HART ........76 Ambient temperature range .
  • Page 167 Liquiline CM442R/CM444R/CM448R Mains fuse ......158 Occupational safety ......8 Manufacturer ID .
  • Page 168 Liquiline CM442R/CM444R/CM448R Sensors Chlorine ......143 Reference temperature ....158 Conductivity, conductive .
  • Page 169 Liquiline CM442R/CM444R/CM448R Technical data ......149 Environment ......159 Input.
  • Page 170 Liquiline CM442R/CM444R/CM448R...
  • Page 171 Liquiline CM442R/CM444R/CM448R Endress+Hauser...
  • Page 172 www.addresses.endress.com...

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