Endress+Hauser CM448R Operating Manual
BA01225C/07/EN/13.19
71463753
2019-11-30
Valid as of version
01.07.00
Products Solutions Services
Operating Instructions
Liquiline CM442R/CM444R/
CM448R
Universal four-wire multichannel controller
Cabinet installation
Liquiline CM442R/CM444R/CM448R Table of contents
Table of contents
1 About this document ................ 5
1.1 Warnings ............................ 5
1.2 Symbols .............................. 5
1.3 Symbols on the device ................... 5
1.4 Documentation ........................ 6
2 Basic safety instructions ............ 7
2.1 Requirements for personnel ............... 7
2.2 Designated use ........................ 7
2.3 Workplace safety ....................... 8
2.4 Operational safety ...................... 8
2.5 Product safety ......................... 9
3 Device description ................. 10
3.1 Overview ............................ 10
3.2 Slot and port assignment ................ 11
3.3 Terminal diagram ..................... 12
4 Incoming acceptance and product
identification ..................... 13
4.1 Incoming acceptance ................... 13
4.2 Product identification ................... 13
4.3 Scope of delivery ...................... 14
4.4 Certificates and approvals ............... 14
5 Installation ....................... 16
5.1 Installation conditions .................. 16
5.2 Mounting the measuring device ........... 20
5.3 Post-installation check .................. 23
6 Electrical connection .............. 24
6.1 Connection conditions .................. 24
6.2 Connecting the measuring device .......... 25
6.3 Connecting the sensors ................. 29
6.4 Connecting additional inputs, outputs or
relays .............................. 31
6.5 Connecting PROFIBUS DP or Modbus RS
485 ................................ 35
6.6 Hardware settings ..................... 36
6.7 Ensuring the degree of protection .......... 37
6.8 Post-connection check .................. 38
7 System integration ................ 39
7.1 Web server .......................... 39
7.2 Service interface ...................... 41
7.3 Fieldbuses ........................... 41
8 Operation options ................. 43
8.1 Overview ............................ 43
8.2 Access to the operating menu via the local
display ............................. 44
8.3 Configuration options .................. 45
9 Commissioning .................... 48
9.1 Function check ....................... 48
9.2 Power up ............................ 48
9.3 User definable screens ................. 49
9.4 Basic setup .......................... 50
10 Operation ......................... 51
10.1 Display ............................. 51
10.2 General settings ....................... 53
10.3 Current inputs ........................ 67
10.4 Outputs ............................. 67
10.5 Binary inputs and outputs ............... 77
10.6 Additional functions ................... 82
11 Calibration ...................... 112
12 Diagnostics and troubleshooting .. 113
12.1 General troubleshooting ................ 113
12.2 Diagnostic information on the local display
(optional) .......................... 114
12.3 Diagnostic information via web browser .... 114
12.4 Diagnostic information via fieldbus ........ 114
12.5 Adapting the diagnostic information ...... 114
12.6 Overview of diagnostic information ....... 116
12.7 Pending diagnostic messages ............ 120
12.8 Diagnostics list ...................... 120
12.9 Event logbook ....................... 121
12.10 Simulation ......................... 123
12.11 Device test .......................... 125
12.12 Resetting the measuring device .......... 125
12.13 Device information ................... 126
12.14 Firmware history ..................... 129
13 Maintenance .................... 132
13.1 Cleaning ........................... 132
14 Repair ........................... 134
14.1 Spare parts ......................... 134
14.2 Return ............................. 136
14.3 Disposal ........................... 136
15 Accessories ...................... 137
15.1 Measuring cable ..................... 137
15.2 Sensors ............................ 137
15.3 Additional functionality ................ 142
15.4 Software ........................... 143
15.5 Other accessories ..................... 144
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Table of contents Liquiline CM442R/CM444R/CM448R
16 Technical data ................... 146
16.1 Input .............................. 146
16.2 Digital inputs, passive ................. 146
16.3 Current input, passive ................. 146
16.4 Output ............................ 147
16.5 Digital outputs, passive ................ 148
16.6 Current outputs, active ................. 149
16.7 Relay outputs ........................ 149
16.8 Protocol-specific data .................. 150
16.9 Power supply ........................ 154
16.10 Performance characteristics ............. 155
16.11 Environment ........................ 155
16.12 Mechanical construction ............... 157
17 Installation and operation in
hazardous environment Class I Div.
2 ................................ 159
Index ................................. 160
4 Endress+Hauser
Liquiline CM442R/CM444R/CM448R About this document
1 About this document
1.1 Warnings
Structure of information Meaning
DANGER
L
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
Corrective action
‣
WARNING
L
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
Corrective action
‣
CAUTION
L
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
Corrective action
‣
NOTICE
Cause/situation
If necessary, Consequences of
non-compliance (if applicable)
Action/note
‣
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious
injury.
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious
injury.
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
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
1.3 Symbols on the device
Symbol Meaning
Reference to device documentation
Endress+Hauser 5
About this document Liquiline CM442R/CM444R/CM448R
1.4 Documentation
The following instructions complement these Operating Instructions and are available on
the product pages on the Internet:
• Brief Operating Instructions Liquiline CM44xR, KA01160C
• 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
6 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Basic safety instructions
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 this manual and follow the instructions.
2.2.3 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.
2.2.4 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
Endress+Hauser 7
Basic safety instructions Liquiline CM442R/CM444R/CM448R
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.
CAUTION
L
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.
8 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Basic safety instructions
2.5 Product safety
2.5.1 State of the art
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.
Endress+Hauser 9
Device description Liquiline CM442R/CM444R/CM448R
1 2
3
4
3
5
6
7
5
6
3 Device description
3.1 Overview
1 Device with optional, external display (excluding cables)
1 Four-channel or eight-channel device 5 Terminal strip
2 Extension modules (optional) 6 Basic module
3 Shock protection, dummy module 7 Two-channel device
4 External display (optional) 8 External power unit (CM444R or CM448R only)
A0039726
10 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Device description
BASE2-E
Slots
1
2
1
2
1
2
1
2
Ports
2DS 2DS 2DS 2AI 2AO 4R
1
2
Sensor 1
Sensor 1
Sensor 1
Sensor 2
Sensor 2
Sensor 2
1
2
1
2
1
2
1
2
3
4
3.2 Slot and port assignment
2 Slot and port assignment of the hardware modules
• Inputs are assigned to measuring channels in the
ascending order of the slots and ports.
Adjacent example:
"CH1: 1:1 pH glass" means:
Channel 1 (CH1) is slot 1 (basic module) : Port 1 (input
1), pH glass sensor
• Outputs and relays are named according to their
function, e.g. "current output", and are displayed in
ascending order with the slot and port numbers
3 Slot and port assignment on the
display
Endress+Hauser 11
Device description Liquiline CM442R/CM444R/CM448R
1 2
3
4
43
42 41
Relay 1
Relay 2
Relay 3
Relay 4
Slot
Slot 4
Port 1
Pin 41
BASE2-E 2DS
4R
2AO
43
42 414342 41
43
42 41
43
42 41
3.3 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
• Base module BASE2-E (contains 2 sensor inputs, 2 current outputs)
• 2DS module (2 sensor inputs)
• 2AO module (2 current outputs)
• 4R module (4 relays)
4 Creating a terminal diagram using the example of the NO contact (terminal 41) of a relay
A0039621
12 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Incoming acceptance and product identification
4 Incoming acceptance and product
identification
4.1 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.
4.2 Product identification
4.2.1 Nameplate
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
Compare the information on the nameplate with the order.
‣
4.2.2 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.
Endress+Hauser 13
Incoming acceptance and product identification Liquiline CM442R/CM444R/CM448R
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.
Manufacturer's address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
4.3 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 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
If you have any queries:
‣
Please contact your supplier or local sales center.
1)
4.4 Certificates and approvals
4.4.1
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EU directives. The manufacturer confirms
successful testing of the product by affixing to it the mark.
4.4.2 EAC
The product has been certified according to guidelines TP TC 004/2011 and TP TC
020/2011 which apply in the European Economic Area (EEA). The EAC conformity mark
is affixed to the product.
4.4.3 cCSAus
The device has been certified with regard to its electrical safety and for NI Class I Div. 2
cCSAus explosion-proof environments. It meets the requirements in accordance with:
• CLASS 2252 06 - Process Control Equipment
• CLASS 2252 86 - Process Control Equipment - Certified to US Standards
• CLASS 2258 03 - Process Control Equipment - Intrinsically Safe and Non-incendive
Systems - For Hazardous Locations
• CLASS 2258 83 - Process Control Equipment - Intrinsically Safe and Non-incendive
Systems - For Hazardous Locations - Certified to US Standards
• FM3600
• FM3611
mark
1) The external display can be selected as an option in the order structure or ordered as an accessory at a later stage.
14 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Incoming acceptance and product identification
• FM3810
• UL50E
• IEC 60529
• CAN/CSA-C22.2 No. 0
• CAN/CSA C22.2 No. 94
• CSA Std. C22.2 No. 213
• CAN/CSA-C22.2 No. 61010-1
• CAN/CSA-C22.2 No. 60529
• UL/ANSI/ISA 61010-1
• ANSI - ISA 12 12 01
Endress+Hauser 15
Installation Liquiline CM442R/CM444R/CM448R
99 (3.90)
97 (3.82)
7.5 (0.30)
100 (3.94)
TS 35
114 (4.49)
89 (3.50)
91 (3.58)
TS 35
75 (2.95)
83 (3.27)
5 Installation
5.1 Installation conditions
5.1.1 Dimensions
5 Dimensions in mm (inch)
A0039729
16 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Installation
220 (8.66)
97 (3.82)
7.5 (0.30)
100 (3.94)
75 (2.95)
205.5 (8.09)
114 (4.49)
TS 35
TS 35
89 (3.50)
91 (3.58)
6 Dimensions in mm (inch)
5.1.2 Mounting on DIN rail as per IEC 60715
CAUTION
L
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.
A0039730
CAUTION
L
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.
Endress+Hauser 17
Installation Liquiline CM442R/CM444R/CM448R
min. 50 (1.97)
min. 20 (0.79)
min. 50 (1.97)
min. 20 (0.79)
min. 50 (1.97)
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)!
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.
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)
7 Minimum clearance in mm (in)
5.1.3 Wall mounting
18 Endress+Hauser
8 Drilling pattern for wall mounting in mm (in)
A0039735
A0025370
Liquiline CM442R/CM444R/CM448R Installation
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
5.1.4 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.
A0025371
9 Mounting plate of external display, dimensions in mm (in)
a Retaining tab
b Production-related recesses, no function for the user
5.1.5 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)
Endress+Hauser 19
Installation Liquiline CM442R/CM444R/CM448R
a
b
5.2 Mounting the measuring device
5.2.1 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).
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.
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 be mounted on a DIN rail only.
Use the back of the housing to mark the mounting holes. (→ 8, 18)
1. Drill the corresponding holes and insert wall plugs if necessary.
2. Screw the housing onto the wall.
20 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Installation
.
.
.
. .
.
.
.
..
.
.
.
.
.
. .
.
.
.
..
.
.
4 x Ø 8 (0.31)
Ø 20 (0.79)
5.2.3 Mounting the optional external display
CAUTION
L
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.
3. Draw lines to interconnect all the marks.
This will indicate the position of the five drill holes needed.
4. Drill the holes (→ 9, 19).
Endress+Hauser 21
Installation Liquiline CM442R/CM444R/CM448R
a
b
c
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.
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.
10 Mounted display
22 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Installation
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.
5.3 Post-installation check
1. After mounting, check all devices (controller, power unit, display) for damage.
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.
Endress+Hauser 23
Electrical connection Liquiline CM442R/CM444R/CM448R
1
3
2
USB
31
32
250 ... 500 Ω
FXA291
Master class 1
(PLC, DCS)
T T
Ethernet
PROFIBUS DP
(RS485)
Master class 2 (FieldCare, PDM)
6 Electrical connection
6.1 Connection conditions
6.1.1 Via HART (e.g. via HART modem and FieldCare)
11 HART using modem
1 Device module Base2-L, -H or -E: current output 1 with HART
2
HART modem for connection to PC, e.g. Commubox FXA191 (RS232) or FXA195 1) (USB)
3 HART handheld terminal
1)
Switch position "on" (substitutes the resistor)
6.1.2 Via PROFIBUS DP
A0039620
12 PROFIBUS DP
T Terminating resistor
24 Endress+Hauser
A0039617
Liquiline CM442R/CM444R/CM448R Electrical connection
FXA291
Ethernet
Modbus Master / Gateway
T T
Modbus RS485
(RTU, ASCII)
FieldCare/
Webbrowser
FXA291
Ethernet
Ethernet client
6.1.3 Via Modbus RS485
A0039615
13 Modbus RS485
T Terminating resistor
6.1.4 Via Ethernet: web server/Modbus TCP/PROFINET/ EtherNet/IP
A0039616
14 Modbus TCP or EtherNet/IP or PROFINET
6.2 Connecting the measuring device
WARNING
L
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.
‣
Endress+Hauser 25
Electrical connection Liquiline CM442R/CM444R/CM448R
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.
6.2.1 Cable terminals
Plug-in terminals for Memosens and PROFIBUS/RS485 connections
Insert the cable until the limit
Press the screwdriver against
‣
the clip (opens the terminal).
‣
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).
26 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Electrical connection
N/- L/+PE
85
85
86
86
SD
Display
Sensor supply
+
+
–
Service
PK
GY
PK
GY
1
2
–
L
N
*
Power
L/+
N/–
PE
+
–
A
B
41
43
42
Alarm
31
31
32
32
0/4 ... 20 mA
+
+
–
–
HART
+
–
A
B
Sensor 2
Ethernet
87
88
97
98
87
88
97
98
BN
WH
GN
YE
BN
WH
GN
YE
Sensor 1
1
2
6.2.2 Connecting the supply voltage for CM442R
A0039665
15 Connecting power supply on the BASE2-H or -
L
H Power unit 100 to 230 VAC
L Power unit 24 VAC or 24 VDC
16 Overall wiring diagram for BASE2-H or -L
A0039625
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)!
‣
Run the signal/display cable in the control cabinet separately from live (current-
‣
carrying) cables.
Endress+Hauser 27
Electrical connection Liquiline CM442R/CM444R/CM448R
L N
+ RD
- BK
*
85
85
86
86
SD
Display
Sensor supply
+
+
–
Service
PK
GY
PK
GY
1
2
–
+
–
A
B
41
43
42
Alarm
31
31
32
32
0/4 ... 20 mA
+
+
–
–
HART
+
–
A
B
Sensor 2
Ethernet
87
88
97
98
87
88
97
98
BN
WH
GN
YE
BN
WH
GN
YE
Sensor 1
1
2
L/+
N/–
*
Power
L/+
N/–
PE
Power
(internal)
B
6.2.3 Connecting the supply voltage for CM444R and the CM448R
A0039668
17 Connecting power supply with BASE2-E
* Assignment depending on power unit, make sure
to connect correctly
18 Overall wiring diagram for BASE2-E and
external power unit (B)
A0039624
The two device versions may only be operated with the power unit supplied and the
power unit cable. Also pay attention to the information in the operating manual
supplied for the power unit.
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)!
‣
Run the signal/display cable in the control cabinet separately from live (current-
‣
carrying) cables.
28 Endress+Hauser
Liquiline CM442R/CM444R/CM448R Electrical connection
6.3 Connecting the sensors
6.3.1 Sensor types with Memosens protocol
Sensors with Memosens protocol
Sensor types Sensor cable Sensors
Digital sensors without
additional internal power
supply
Digital sensors with
additional internal power
supply
With plug-in
connection and
inductive signal
transmission
Fixed cable Conductivity sensors with inductive measurement of
Fixed cable • Turbidity sensors
• pH sensors
• ORP sensors
• Combined sensors
• Oxygen sensors (amperometric and optical)
• Conductivity sensors with conductive measurement
of conductivity
• Chlorine sensors (disinfection)
conductivity
• Sensors for interface measurement
• Sensors for measuring the spectral absorption
coefficient (SAC)
• Nitrate sensors
• Optical oxygen sensors
• Ion-sensitive sensors
The following rule applies if connecting CUS71D sensors:
• CM442R
• Only one CUS71D is possible; an additional sensor is not permitted.
• The second sensor input may also not be used for another type of sensor.
• CM444R
No restrictions. All the sensor inputs can be used as required.
• CM448R
• If a CUS71D is connected, the number of sensor inputs that can be used is limited to a
maximum of 4.
• Of these, all 4 inputs can be used for CUS71D sensors.
• Every combination of CUS71D and other sensors is possible, provided that the total
number of connected sensors does not exceed 4.
Endress+Hauser 29
Electrical connection Liquiline CM442R/CM444R/CM448R
GN/YE
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 earth to the terminal strip of the device.
19 Functional earth connection
You must only ever connect one functional earth to each screw in the terminal strip.
Otherwise, shielding is not guaranteed.
6.3.3 Connecting the sensors
Connection
Direct connection of the sensor cable to the terminal connector of the sensor module 2DS
or of the base module-L, -H or -E (→ 20 ff.)
Sensor cable connected directly
‣
Connect the sensor cable to the Memosens terminal connector of the sensor module
2DS or of the module Base2-L, -H or -E.
30 Endress+Hauser
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