Endress+Hauser Liquiline CM442 User manual

Products Solutions Services
KA01159C/07/EN/01.13
71237560
Valid as of:
Softwareversion 01.05.00
Brief Operating Instructions
Liquiline
CM442/CM444/CM448
Universal four-wire multichannel controller
These instructions are Brief Operating Instructions.
Detailed information can be found in the Operating Instructions
and special instructions on the CD-ROM provided.

Table of contents Liquiline CM442/CM444/CM448
2Endress+Hauser
Table of contents
1 Document information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1.1 Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Basic safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Requirements for personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Occupational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Product safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Incoming acceptance and product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3.1 Incoming acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Product identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Certificates and approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
4.1 Installation conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Mounting the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Post-installation check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
5.1 Connecting the measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Connecting the sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3 Connecting additional inputs, outputs or relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.4 Connecting digital communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.5 Hardware settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.6 Guaranteeing the degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.7 Post-connection check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6 Operation options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
6.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2 Access to the operating menu via the local display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
7.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.2 Switching on the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Liquiline CM442/CM444/CM448 Document information
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1 Document information
1.1 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").
1.2 Symbols used
Structure of the safety
symbol
Meaning
DANGER
!
Causes (/consequences)
Possible consequences if
ignored
‣Preventive measures
This symbol alerts you to a dangerous situation.
Failure to avoid this situation will result in serious or fatal
injury.
WARNING
!
Causes (/consequences)
Possible consequences if
ignored
‣Preventive measures
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in serious or fatal
injury.
CAUTION
!
Causes (/consequences)
Possible consequences if
ignored
‣Preventive measures
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in medium or minor
injury.
NOTICE
Cause/situation
Possible consequences if
ignored
‣Action/note
This symbol alerts you to situations that can cause damage to
equipment or property.
Additional information, tips
Permitted or recommended
Forbidden or not recommended

Document information Liquiline CM442/CM444/CM448
4Endress+Hauser
1.3 Documentation
The following instructions complement these Brief Operating Instructions and are available on
the CD-ROM:
• Operating Instructions for Liquiline CM44x, BA00444C
– Device description
– Commissioning
–Operation
– Software description (excluding Memosens)
– Device-specific diagnostics and troubleshooting
– Maintenance
– Repair and spare parts
– Accessories
–Technicaldata
• Operating Instructions for 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 the HART driver
• Guidelines for communication via fieldbus and web server
– HART, SD01187C
– PROFIBUS, SD01188C
– Modbus, SD01189C
– Web server, SD01190C
You will also find the following on the CD:
• Technical Information for Liquiline CM44x. TI00444C
• Documentation for other Liquilinie platform devices:
– Liquiline CM44xR (DIN rail device)
– Liquistation CSFxx and Liquiport CSP44 (sampler)
•Simulationsoftware

Liquiline CM442/CM444/CM448 Basic safety instructions
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2 Basic safety instructions
2.1 Requirements for personnel
‣Installation, commissioning, operation and maintenance of the measuring system must only
be carried out by trained technical personnel.
‣The technical personnel must be authorized to perform the tasks by the owner-operator.
‣The electrical connection may only be established by an electrical technician.
‣The technical personnel must have read and understood these Operating Instructions and
must follow the instructions they contain.
‣Faults at the measuring point may only be rectified by authorized and properly trained
personnel.
Repairs not described in the enclosed Operating Instructions may only be carried out
directly at the manufacturer's or by the Service Organization.
2.2 Designated use
2.2.1 Non-hazardous atmosphere
Liquiline CM44x 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:
• Water and wastewater
• Power stations
• Chemical industry
• Industrial wastewater treatment plants
2.2.2 Hazardous environment as per FM/CSA Class I Div. 2 (only CM442)
‣Pay attention to the control drawing and the specified operating conditions in the appendix
to this manual and follow the instructions.
2.2.3 Non-designated use
If the device is used for any purpose other than that described, this poses a threat to the safety
of people and the entire measuring system and is thus not permitted.
The manufacturer does not accept liability for damage caused by improper or non-designated
use.
2.3 Occupational safety
As the user, you are responsible for observing the following safety regulations:
• Installation guidelines
• Local standards and regulations

Basic safety instructions Liquiline CM442/CM444/CM448
6Endress+Hauser
Electromagnetic compatibility
The product has been tested for electromagnetic compatibility in accordance with the applicable
European standards for industrial applications.
The electromagnetic compatibility indicated applies only to a product that has been connected
in accordance with the instructions in
these Operating Instructions.
2.4 Operational safety
‣Prior to commissioning the entire measuring point, check that all connections are correct.
Make sure that electric cables and hose connections are not damaged.
‣Do not commission damaged products. Protect them against unintentional startup. Label and
identify the damaged product as defective.
‣If the faults cannot be eliminated, take the products out of service and protect them against
unintentional startup.
CAUTION
!
The cleaning system is 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 are not switching off the cleaning system because you wish to test the cleaning
function, wear protective clothing, goggles and gloves or take other appropriate measures.
2.5 Product safety
2.5.1 State-of-the-art technology
The transmitter 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 applicable regulations and European standards have been taken into account.
2.5.2 IT safety
Our guarantee applies only if the device is installed and used in accordance with the Operating
Instructions. The device has safety mechanisms to prevent the settings from being modified
accidentally.
IT safety measures as per the operator's safety standards, which provide additional protection
for the device and the transfer of data, must be implemented by the operator in person.
If you require support for this, please contact Endress+Hauser.

Liquiline CM442/CM444/CM448 Incoming acceptance and product identification
Endress+Hauser 7
3 Incoming acceptance and product identification
3.1 Incoming acceptance
1. Make sure the packaging is not damaged.
Inform your supplier of any damage to the packaging.
Please keep the damaged packaging until any issues have been resolved.
2. Make sure the contents are not damaged.
Inform your supplier of any damage to the contents.
Please keep the damaged goods until any issues have been resolved.
3. Check that the delivery is complete and nothing is missing.
Compare the scope of delivery against the delivery papers and your order.
4. Pack the product in such a way as to protect it reliably against impact and moisture for
storage and transportation.
Optimum protection is provided by the original packaging materials.
The permitted ambient conditions must be observed (see Technical data).
If you have any queries, please contact your supplier or sales center.
3.2 Product identification
3.2.1 Nameplate
Nameplates can be found:
• On the outside of the housing
• On the packaging (adhesive label, portrait format)
• On the inside of the display cover
The nameplate provides you with the following information on your device:
• Manufacturer identification
•Ordercode
• Extended order code
• Serial number
• Firmware version
• Input and output values
• Protection class
• Environment
• Activation codes
• Safety notices and warnings
Compare the data on the nameplate with your order.

Incoming acceptance and product identification Liquiline CM442/CM444/CM448
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3.2.2 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 what device version you have, enterthe order code indicated on the nameplate
in the search screen at the following address:
www.products.endress.com/order-ident
3.3 Scope of delivery
• 1 controller in the version ordered
• 1 mounting plate
• 1 wiring label (attached at the factory to the inside of the display cover)
• 1 CD with Operating Instructions
• 1 Printed Brief Operating Instructions in the language ordered
If you have any queries, please contact your supplier or local sales center.
3.4 Certificates and approvals
3.4.1 CE mark: Declaration of Conformity
With this declaration, the manufacturer guarantees that the product conforms to the
regulations of European Directive 2004/108/EC and Low Voltage Directive 2006/95/EC. This
is proven by observing the standards listed in the Declaration of Conformity.
3.4.2 cCSAus
The product meets the requirements of "CLASS 2252 05 - Process Control Equipment" and
"CLASS 2252 85 - Process Control Equipment - Certified to US Standards".
3.4.3 FM/CSA (CM442 only)
FM/CSA Cl. I, Div. 2
The device has been developed and tested according to the following standards:
• FM3600 (1998)
• FM3611 (2004)
• FM3810 (2005)
• ANSI/ISA NEMA250 (1999)
• ANSI/IEC 60529 (2001)
3.4.4 MCERTS
Certification has been requested for CM442

Liquiline CM442/CM444/CM448 Installation
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4 Installation
4.1 Installation conditions
4.1.1 Dimensions
a0012396
Fig. 1: Dimensions of field housing in mm (inch)

Installation Liquiline CM442/CM444/CM448
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4.1.2 Mounting plate
4.1.3 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).
a0012426
Fig. 2: Mounting plate in mm (inch)
a0012428
Fig. 3: Weather protection cover in mm (inch)

Liquiline CM442/CM444/CM448 Installation
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4.2 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.
4.2.1 Post mounting
a0012665
Fig. 4: Post mounting
1
2
3
4
Weather protection cover (optional)
Post mounting plate (post mounting kit)
Spring washers and nuts (post mounting kit)
Pipe clamps (post mounting kit)
5
6
7
8
Spring washers and nuts (post mounting kit)
Pipe or post (circular/square)
Mounting plate
Threaded rods (post mounting kit)
a0012666
Fig. 5: Post mounting
a0012667
Fig. 6: Attaching device, clicking into place

Installation Liquiline CM442/CM444/CM448
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4.2.2 Railing mounting
a0012668
Fig. 7: Railing mounting
1
2
3
4
5
Weather protection cover (optional)
Post mounting plate (post mounting kit)
Spring washers, nuts (post mounting kit)
Pipe clamps (post mounting kit)
Spring washers, nuts (post mounting kit)
6
7
8
9
Pipe or railing (circular/square)
Mounting plate
Threaded rods (post mounting kit)
Screws (post mounting kit)
a0012669
Fig. 8: Railing mounting
a0012670
Fig. 9: Attaching device, clicking into place

Liquiline CM442/CM444/CM448 Installation
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4.2.3 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.
a0012686
Fig. 10: Mounting distance in mm (inch)
a0012684
Fig. 11: Wall mounting
1Wall
2 4 drill holes1)
3Mountingplate
4 Screws Ø 6 mm (not part of
scope of supply)
1) The size of the drill holes depends on the wall plugs used. The wall plugs and screws must be provided by the
customer.
a0012685
Fig. 12: Attaching device, clicking into
place

Installation Liquiline CM442/CM444/CM448
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4.2.4 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.
4.3 Post-installation check
‣After installation, check the transmitter for damage.
‣Check whether the transmitter is protected against moisture and direct sunlight (e.g. by the
weather protection cover).
a0013154
Fig. 13: Disassembly
1. Hold down the latch
2. Push up the housing to remove it from the holder
a0013155
Fig. 14: Disassembly
3. Remove the device from the front

Liquiline CM442/CM444/CM448 Electrical connection
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5 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.
‣Prior to beginning any wiring work, make sure voltage is not applied to any of the cables.
5.1 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
‣You must provide a protected circuit breaker in the vicinity of the device.
‣This must be a switch or a power-circuit breaker and you must label it as the circuit breaker
for the device.
‣At the supply point, the power supply for the 24 V versions must be isolated from dangerous
live cables by double or reinforced insulation.

Electrical connection Liquiline CM442/CM444/CM448
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5.1.1 Opening the housing
NOTICE
Pointed or sharp tools
If unsuitable tools are used, they can scratch the housing or damage the seal, and thus have a
negative impact on the leak-tightness of the housing.
‣Do not use any sharp or pointed objects, such as a knife, to open the housing.
‣Only use a suitable Phillips screwdriver.
‣Release the housing screws step by step. Start with any screw and then release the screw
diagonally opposite etc.
‣When closing the housing, also tighten the screws step-by-step in a diagonally opposite
sequence.
5.1.2 Cable mounting rail
a0012688
Fig. 15: Releasing housing screws in a diagonally opposite
sequence with Phillips screwdriver
a0012689
Fig. 16: Opening display cover, max. opening angle 180˚
(depends on installation position)
a0012454
Fig. 17: Cable mounting rail and associated function
1
2
Cable mounting rail
Threaded bolt (protective ground connection, central
grounding point)
3
4
Additional threaded bolts for ground connections
Cable clamps (fixing and grounding the sensor cables)

Liquiline CM442/CM444/CM448 Electrical connection
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5.1.3 Connecting the cable shield
If possible, only use terminated genuine cables. The sensor, fieldbus and ethernet cables
must be shielded.
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.
3. Route the cable in the housing in such a way that the exposed cable shield fits into one of
the cable clamps and the cable cores can be easily routed as far as the connection plug on
the electronics module.
4. Screw on the cable clamp and clamp the cable in place. Then tighten the screw of the cable
clamp.
5. Connect the cable cores as per the wiring diagram.
6. Lastly, tighten the cable gland from the outside.
Cable sample (does not necessarily correspond to the genuine cable supplied)
a0013210
Fig. 18: Terminated cable
1 Outer shield (exposed)
2 Cable cores with ferrules
3 Cable sheath (insulation)
a0013211
Fig. 19: Inserting the cable
4 Grounding clip
a0013212
Fig. 20: Tightening the screw (2 Nm)1)
The cable shield is grounded by the
grounding clip
1) Observe the information in the "Guaranteeing the degree of protection" section (→ä33)
12
3
4

Electrical connection Liquiline CM442/CM444/CM448
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5.1.4 Cable terminals
Plug-in terminals for Memosens and PROFIBUS/RS485 connections
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
a0012691
Fig. 21: Press the screwdriver against
the clip (opens the terminal)
a0012692
Fig. 22: Insert the cable until the limit
stop
a0012693
Fig. 23: Remove the screwdriver (closes
the terminal)
a0012694
Fig. 24: Insert the screwdriver until the
limit stop (opens the terminal)
a0012695
Fig. 25: Insert the cable until the limit
stop
a0012696
Fig. 26: Remove the screwdriver (closes
the terminal)

Liquiline CM442/CM444/CM448 Electrical connection
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5.1.5 Power supply CM442
a0015825
Fig. 27: Power supply connection on BASE-H or -L
H Power unit 100 to 230 VAC
L Power unit 24 VAC or 24 VDC a0012404
Fig. 28: Overall wiring diagram BASE-H or -L

Electrical connection Liquiline CM442/CM444/CM448
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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.
3. Protective ground or grounding at the mounting location (absolutely essential for 24 V
power units, additionally recommended for 100 to 230 V AC power unit): You must
provide a ground cable (min. 0.75 mm2(corresponding to 18 AWG)). Guide the ground
cable also through the cable entry and connect it to the threaded bolt on the cable mounting
rail (→å29).
4. Connect the cable cores L and N (100 to 230 V AC, 24 V AC) or + and - (24 V DC) to the
plug-in terminals on the basic module in accordance with the wiring diagram.
NOTICE
Protective ground/ground cable with end sleeve or open cable lug
The cable can become loose. Loss of the protective function.
‣To connect the protective ground or ground cable to the threaded bolt, only use a cable with
a closed cable lug as per DIN 46211, 46225, form A.
‣Never connect the protective ground or ground cable to the threaded bolt with an end sleeve
or an open cable lug!
a0013251
Fig. 29: Protective ground or grounding connection
1
2
3
4
5
Protective ground, mounted at the factory
Serrated washer and nut
Protective ground / ground cable, provided by the customer
(min. 0.75 mm (corresponding to 18 AWG))
Serrated washer and nut
Threaded bolt
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