Endress+Hauser Liquiline CM442R Technical specifications

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Brief Operating Instructions
Liquiline
CM442R/CM444R/CM448R
Universal four-wire multichannel controller for
cabinet installation
These instructions are Brief Operating Instructions; they are
not a substitute for the Operating Instructions pertaining to
the device.
Detailed information on the device can be found in the
Operating Instructions and in the other documentation
available at:
• www.endress.com/device-viewer
• Smart phone/tablet: Endress+Hauser Operations App
KA01160C/07/EN/08.21
71519572
2021-03-04

Liquiline CM442R/CM444R/CM448R
2 Endress+Hauser
Order code:
Ext. ord. cd.:
Ser. no.:
www.endress.com/deviceviewer Endress+Hauser
Operations App
XXXXXXXXXXXX
XXXXX-XXXXXX
XXX.XXXX.XX
Serial number
1.
3.
2.
A0040778

Liquiline CM442R/CM444R/CM448R Table of contents
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Table of contents
1 About this document .............................................................. 4
1.1 Warnings ............................................................................ 4
1.2 Symbols ............................................................................. 4
1.3 Symbols on the device ................................................................... 5
1.4 Documentation ........................................................................ 5
2 Basic safety instructions .......................................................... 6
2.1 Requirements for personnel .............................................................. 6
2.2 Designated use ........................................................................ 6
2.3 Workplace safety ...................................................................... 7
2.4 Operational safety ......................................................................7
2.5 Product safety ......................................................................... 9
3 Incoming acceptance and product identification ................................. 10
3.1 Incoming acceptance ................................................................... 10
3.2 Product identification .................................................................. 10
3.3 Scope of delivery ...................................................................... 11
4 Installation ...................................................................... 12
4.1 Installation conditions .................................................................. 12
4.2 Mounting the measuring device ...........................................................15
4.3 Post-installation check ................................................................. 18
5 Electrical connection ............................................................ 19
5.1 Connecting the measuring device ......................................................... 19
5.2 Connecting the sensors ................................................................. 23
5.3 Connecting additional inputs, outputs or relays ............................................... 27
5.4 Connecting PROFIBUS or Modbus 485 ...................................................... 30
5.5 Hardware settings ..................................................................... 32
5.6 Ensuring the degree of protection ......................................................... 33
5.7 Post-connection check ..................................................................34
6 Operation options ............................................................... 35
6.1 Overview ........................................................................... 35
6.2 Access to the operating menu via the local display ............................................. 36
7 Commissioning .................................................................. 37
7.1 Function check ....................................................................... 37
7.2 Switching on ......................................................................... 37
7.3 Basic setup .......................................................................... 38

About this document Liquiline CM442R/CM444R/CM448R
4 Endress+Hauser
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of non-
compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of non-
compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to property.
1.2 Symbols
Symbol Meaning
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
 Result of a step

Liquiline CM442R/CM444R/CM448R About this document
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1.3 Symbols on the device
Symbol Meaning
Reference to device documentation
1.4 Documentation
The following instructions complement these Brief Operating Instructions and are available on
the product pages on the Internet:
• Operating Instructions Liquiline CM44xR, BA01225C
• Device description
• Commissioning
• Operation
• Software description (excluding sensor menus; these are described in a separate manual -
see below)
• Device-specific diagnostics and troubleshooting
• Maintenance
• Repair and spare parts
• Accessories
• Technical data
• Operating Instructions Memosens, BA01245C
• Software description for Memosens inputs
• Calibration of Memosens sensors
• Sensor-specific diagnostics and troubleshooting
• Operating Instructions for HART communication, BA00486C
• Onsite settings and installation instructions for HART
• Description of HART driver
• Guidelines for communication via fieldbus and web server
• HART, SD01187C
• PROFIBUS, SD01188C
• Modbus, SD01189C
• Web server, SD01190C
• EtherNet/IP, SD01293C
• PROFINET, SD02490C
• Safety instructions for electrical apparatus in explosion-hazardous areas
• ATEX & IECEx, XA02419C
• CSA, XA02420C

Basic safety instructions Liquiline CM442R/CM444R/CM448R
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2 Basic safety instructions
2.1 Requirements for personnel
• Installation, commissioning, operation and maintenance of the measuring system may be
carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the specified
activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions and
must follow the instructions contained therein.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Designated use
2.2.1 Non-hazardous atmosphere
Liquiline CM44xR is a multichannel controller for connecting digital sensors with Memosens
technology in non-hazardous environments.
The device is designed for use in the following applications:
• Food and beverages
• Life science
• Water and wastewater
• Chemical industry
2.2.2 Hazardous environment in accordance with cCSAus Class I Div. 2
‣Please pay attention to the control drawing and specified operating conditions in the
appendix of the Operating Instructions and follow the instructions.
‣Pay attention to the control drawing and the specified application conditions in the
appendix of these Operating Instructions, and follow the instructions.
2.2.3 Hazardous environment with transmitter with sensor communication module
type 2DS Ex-i
The installation conditions in these Brief Operating Instructions and the corresponding XA
must be observed.
• ATEX & IECEx: XA02419C
• CSA: XA02420C

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2.2.4 Non-designated use and improper use
NOTICE
Objects stored on top of the housing
May cause short-circuits or fire or result in the failure of individual cabinet components or
complete failure of the measuring point!
‣Never place any objects, such as tools, cables, paper, food, liquid containers or similar, on
top of the housing.
‣Always observe the operator's regulations, in particular with regard to fire safety (smoking)
and foodstuffs (beverages).
Use of the device for any purpose other than that described, poses a threat to the safety of
people and of the entire measuring system and is therefore not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
2.2.5 Installation environment
The device and the associated power units can be operated with 24 V AC, 24 V DC or 100 to
230 V AC and provide shock protection in accordance with IP20.
The components have been designed for pollution degree 2, and moisture must not be allowed
to collect in them. The components must therefore be installed in an appropriate enclosure for
protection. The ambient conditions specified in the instructions must be observed here.
2.3 Workplace safety
As the user, you are responsible for complying with the following safety conditions:
• Installation guidelines
• Local standards and regulations
• Regulations for explosion protection
Electromagnetic compatibility
• The product has been tested for electromagnetic compatibility in accordance with the
applicable international standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.
2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.
During operation:
‣If faults cannot be rectified:
products must be taken out of service and protected against unintentional operation.

Basic safety instructions Liquiline CM442R/CM444R/CM448R
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LCAUTION
Cleaning not switched off during calibration or maintenance activities
Risk of injury due to medium or cleaning agent!
‣If a cleaning system is connected, switch it off before removing a sensor from the medium.
‣If you wish to check the cleaning function and have therefore not switched off the cleaning
system, wear protective clothing, goggles and gloves or take other appropriate measures.

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2.5 Product safety
2.5.1 State-of-the-art technology
The product is designed to meet state-of-the-art safety requirements, has been tested, and
left the factory in a condition in which it is safe to operate. The relevant regulations and
international standards have been observed.
2.5.2 IT security
We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any
inadvertent changes to the device settings.
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.

Incoming acceptance and product identification Liquiline CM442R/CM444R/CM448R
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3 Incoming acceptance and product identification
3.1 Incoming acceptance
1. Verify that the packaging is undamaged.
 Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
 Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
 Compare the shipping documents with your order.
4. Pack the product for storage and transportation in such a way that it is protected
against impact and moisture.
 The original packaging offers the best protection.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.
3.2 Product identification
3.2.1 Nameplate
Nameplates can be found:
• on the packaging (adhesive label, portrait format)
• on the back of the external display (not visible when installed)
The nameplate provides you with the following information on your device:
• Manufacturer identification
• Order code
• Extended order code
• Serial number
• Firmware version
• Ambient and process conditions
• Input and output values
• Activation codes
• Safety information and warnings
• Ex marking on hazardous area versions
‣Compare the information on the nameplate with the order.

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3.2.2 Product identification
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 product can be found in the following locations:
• On the nameplate
• In the delivery papers
Obtaining information on the product
1. Go to www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.
4. Search.
 The product structure is displayed in a popup window.
5. Click on the product image in the popup window.
 A new window (Device Viewer) opens. All of the information relating to your
device is displayed in this window as well as the product documentation.
3.2.3 Manufacturer's address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
3.3 Scope of delivery
The scope of delivery comprises:
• 1 multichannel controller in the version ordered
• 1 mounting plate
• 1 external display (if selected as an option) 1)
• 1 DIN rail power unit incl. cable (CM444R and CM448R only)
• 1 printed copy of the Operating Instructions for DIN rail power unit
• 1 printed copy of the Brief Operating Instructions in the language ordered
• Disconnection element (pre-installed on hazardous area version type 2DS Ex-i)
• Terminal strip
‣If you have any queries:
Please contact your supplier or local sales center.
1) The external display can be selected as an option in the order structure or ordered as an accessory at a later stage.

Installation Liquiline CM442R/CM444R/CM448R
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4 Installation
4.1 Installation conditions
4.1.1 Mounting on DIN rail as per IEC 60715
LCAUTION
The power unit can get very hot under full load
Burn hazard!
‣Avoid touching the power unit during operation.
‣The minimum distances to other devices must be observed.
‣After switching off the power unit, allow it to cool down before carrying out any work on it.
LCAUTION
Impermissible collection of moisture in the device
Puts the safety of the user at risk!
‣The device has IP20 shock protection. Never allow moisture to collect in the device.
‣Comply with the specified ambient conditions,e.g. by installing the device in an appropriate
protective enclosure.
NOTICE
Incorrect mounting location in the cabinet, spacing regulations not observed
Possible malfunctions as a result of heat buildup and interference from neighboring devices!
‣Do not position the device directly above sources of heat. The temperature specification
must be observed.
‣The components are designed for convection-based cooling. Avoid heat buildup. Ensure
openings are not covered, e.g. by cables.
‣Observe the specified distances to other devices.
‣Physically separate the device from frequency converters and high-voltage devices.
‣Recommended installation direction: horizontal. The specified ambient conditions, and
particularly the ambient temperatures, only apply for horizontal installation.
‣Vertical orientation is also possible. However, this requires additional fixing clips at the
place of installation to hold the device in position on the DIN rail.
‣Recommended installation of power unit for CM444R and CM448R: to the left of the
device.

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The following minimum clearance specifications must be observed:
• Distances at the side in relation to other devices incl. power units and to the wall of the
cabinet:
at least 20 mm (0.79 inch)
• Distance above and below the device and depth distance (to control cabinet door or other
devices installed there):
at least 50 mm (1.97 inch)
min. 50 (1.97)
min. 20 (0.79)
min. 50 (1.97)
min. 20 (0.79)
min. 50 (1.97)
A0039735
 1 Minimum clearance in mm (in)
4.1.2 Wall mounting
83 (3.27) 205.5 (8.09)
75 (2.95)
75 (2.95)
100 (3.94) 100 (3.94)
4 x 4.5 (0.18)!4 x 4.5 (0.18)!
A0025370
 2 Drilling pattern for wall mounting in mm (in)

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4.1.3 Mounting the external display
The mounting plate also serves as the drilling template. The marks on the side help you
mark the position of the drill holes.
4 x min. Ø 8 (0.31)
min. Ø 15 (0.59)
140 (5.51)
105 (4.13)
105 (4.13)
140 (5.51)
a
b
b
A0025371
 3 Mounting plate of external display, dimensions in mm (in)
a Retaining tab
b Production-related recesses, no function for the user

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4.1.4 Cable length for optional display
Length of display cable provided:
3 m (10 ft)
Maximum permitted length of a display cable:
5 m (16.5 ft)
4.2 Mounting the measuring device
4.2.1 DIN rail mounting
The mounting procedure is the same for all Liquiline devices. The example shows a CM448R.
1. In the order configuration, the securing clips are "tightened" to secure the DIN rail.
Release the securing clips by pulling them downwards.

2. Attach the device from the top to the DIN rail (a) and secure it by pressing down (b).

a
b
3. Slide the securing clips upwards until they click, thereby securing the device to the DIN
rail.

4. CM444R and CM448R only
Mount the external power unit in the same way.

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4.2.2 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 be mounted on a DIN rail only.
Use the back of the housing to mark the mounting holes. (→  2,  13)
1. Drill the corresponding holes and insert wall plugs if necessary.
2. Screw the housing onto the wall.
4.2.3 Mounting the optional external display
LCAUTION
Sharp-edged, non-deburred drill holes
Risk of injury, display cable may get damaged!
‣In particular, deburr the central drill hole for the display cable.
Mounting the display on the door of the cabinet
1. Hold the mounting plate from the outside against the door of the control cabinet.
Choose the point at which you wish to install the display.
2. Make all the markings.

Liquiline CM442R/CM444R/CM448R Installation
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.
.
.
. .
.
.
.
..
.
.
.
.
.
. .
.
.
.
..
.
.
4 x Ø 8 (0.31)
Ø 20 (0.79)
3. Draw lines to interconnect all the marks.
 This will indicate the position of the five drill holes needed.
4. Drill the holes (→  3,  14).
5. Pull the display cable through the hole in the middle, and place the display from the
outside through the four holes drilled for this purpose, ensuring that the torx screws
have been unscrewed to the last half turn but are still in place. Ensure that the rubber
frame (seal, highlighted blue) does not become damaged and is properly positioned on
the surface of the door.
6. Connect the display cable to the RJ-45 socket in the base module.

Installation Liquiline CM442R/CM444R/CM448R
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a
b
c
7. Place the mounting plate on the inside over the screws (a), slide it down (b) and tighten
the screws (c).
 The display is now mounted and ready to use.
 4 Mounted display
NOTICE
Incorrect installation
Damage, e.g. to the cable, or malfunctions are possible!
‣Lay cables in such a way that they do not get squashed e.g. when closing the cabinet door.
‣Plug the display cable only into the RJ45 socket in the base module. Otherwise, the display
will not function.
4.3 Post-installation check
1. After mounting, check all devices (controller, power unit, display) for damage.

Liquiline CM442R/CM444R/CM448R Electrical connection
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2. Verify that the specified installation clearances have been observed.
3. Verify that all securing clips have been snapped into place and that the components are
securely positioned on the DIN rail.
4. Ensure that the temperature limits are observed at the mounting location.
5 Electrical connection
5.1 Connecting the measuring device
LWARNING
Device is live!
Incorrect connection may result in injury or death!
‣The electrical connection may be performed only by an electrical technician.
‣The electrical technician must have read and understood these Operating Instructions and
must follow the instructions contained therein.
‣Prior to commencing connection work, ensure that no voltage is present on any cable.
NOTICE
The device does not have a power switch!
‣Provide a protected circuit breaker in the vicinity of the device at the place of installation.
‣The circuit breaker must be a switch or power switch, and must be labeled as the circuit
breaker for the device.
‣At the supply point, the power supply must be isolated from dangerous live cables by
double or reinforced insulation in the case of devices with a 24 V supply voltage.

Electrical connection Liquiline CM442R/CM444R/CM448R
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5.1.1 Cable terminals
Plug-in terminals for Memosens and PROFIBUS/RS485 connections
‣Press the screwdriver against the
clip (opens the terminal).
‣Insert the cable until the limit stop. ‣Remove the screwdriver (closes the
terminal).
After connection, make sure that every cable end is securely in place. Terminated cable
ends, in particular, tend to come loose easily if they have not been correctly inserted as
far as the limit stop.
All other plug-in terminals
‣Press the screwdriver against the
clip (opens the terminal).
‣Insert the cable until the limit stop. ‣Remove the screwdriver (closes the
terminal).