Endress+Hauser CM442 Operating Manual

BA00444C/07/EN/26.19 71463752 2019-11-30

Valid as of version

01.07.00

Products Solutions Services

Operating Instructions

Liquiline CM442/CM444/CM448

Universal four-wire multichannel controller Field device

Liquiline CM442/CM444/CM448 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 ....................... 7

2.4 Operational safety ...................... 8

2.5 Product safety ......................... 8

3 Device description .................. 9

3.1 Housing closed ........................ 9

3.2 Housing open ......................... 9

3.3 Slot and port assignment ................ 10

3.4 Terminal diagram ..................... 11

4 Incoming acceptance and product

identification ..................... 12

4.1 Incoming acceptance ................... 12

4.2 Product identification ................... 12

4.3 Scope of delivery ...................... 13

4.4 Certificates and approvals ............... 13

5 Installation ....................... 15

5.1 Installation conditions .................. 15

5.2 Mounting the measuring device ........... 16

5.3 Post-installation check .................. 19

6 Electrical connection .............. 20

6.1 Connection conditions .................. 20

6.2 Connecting the measuring device .......... 21

6.3 Connecting the sensors ................. 27

6.4 Connecting additional inputs, outputs or

relays .............................. 30

6.5 Connecting PROFIBUS DP or Modbus RS

485 ................................ 34

6.6 Hardware settings ..................... 37

6.7 Ensuring the degree of protection .......... 38

6.8 Post-connection check .................. 39

8.2 Access to the operating menu via the local

display ............................. 45

8.3 Configuration options .................. 46

9 Commissioning .................... 49

9.1 Function check ....................... 49

9.2 Power up ............................ 49

9.3 User definable screens ................. 50

9.4 Basic setup .......................... 51

10 Operation ......................... 52

10.1 Display ............................. 52

10.2 General settings ....................... 54

10.3 Current inputs ........................ 68

10.4 Outputs ............................. 68

10.5 Binary inputs and outputs ............... 78

10.6 Additional functions ................... 83

11 Calibration ...................... 113

12 Diagnostics and troubleshooting .. 114

12.1 General troubleshooting ................ 114

12.2 Diagnostic information on the local display .. 115

12.3 Diagnostic information via web browser .... 115

12.4 Diagnostic information via fieldbus ........ 115

12.5 Adapting the diagnostic information ...... 115

12.6 Overview of diagnostic information ....... 117

12.7 Pending diagnostic messages ............ 121

12.8 Diagnostics list ...................... 121

12.9 Event logbook ....................... 122

12.10 Simulation ......................... 124

12.11 Device test .......................... 126

12.12 Resetting the measuring device .......... 126

12.13 Device information ................... 127

12.14 Firmware history ..................... 130

13 Maintenance .................... 134

13.1 Cleaning ........................... 134

14 Repair ........................... 136

14.1 Spare parts ......................... 136

14.2 Return ............................. 139

14.3 Disposal ........................... 139

7 System integration ................ 40

7.1 Web server .......................... 40

7.2 Service interface ...................... 42

7.3 Fieldbuses ........................... 42

8 Operation options ................. 44

8.1 Overview ............................ 44

Endress+Hauser 3

15 Accessories ...................... 140

15.1 Protective cover ...................... 140

15.2 Post mounting kit .................... 140

15.3 Measuring cable ..................... 140

15.4 Sensors ............................ 140

15.5 Additional functionality ................ 145

15.6 Software ........................... 147

Table of contents Liquiline CM442/CM444/CM448

15.7 Other accessories ..................... 147

16 Technical data ................... 149

16.1 Input .............................. 149

16.2 Digital inputs, passive ................. 149

16.3 Current input, passive ................. 149

16.4 Output ............................ 150

16.5 Digital outputs, passive ................ 151

16.6 Current outputs, active ................. 152

16.7 Relay outputs ........................ 152

16.8 Protocol-specific data .................. 153

16.9 Power supply ........................ 157

16.10 Performance characteristics ............. 158

16.11 Environment ........................ 159

16.12 Mechanical construction ............... 161

17 Installation and operation in

hazardous environment Class I Div.

2 ................................ 162

Index ................................. 163

4 Endress+Hauser

Liquiline CM442/CM444/CM448 About this document

1 About this document

1.1 Warnings

Structure of information Meaning

DANGER

Causes (/consequences)

If necessary, Consequences of non-compliance (if applicable)

Corrective action

‣

WARNING

Causes (/consequences)

If necessary, Consequences of non-compliance (if applicable)

Corrective action

‣

CAUTION

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 CM442/CM444/CM448

1.4 Documentation

The following instructions complement these Operating Instructions and are available on the product pages on the Internet:

• Brief Operating Instructions Liquiline CM44x, KA01159C

• 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 CM442/CM444/CM448 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 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

• Other industrial applications

2.2.2 Hazardous environment in accordance with cCSAus Class I Div.

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

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.

2.3 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.

Endress+Hauser 7

Basic safety instructions Liquiline CM442/CM444/CM448

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

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.

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.

8 Endress+Hauser

Liquiline CM442/CM444/CM448 Device description

1 2

4 5

789

3 Device description

3.1 Housing closed

1 Display 2 Weather protection cover (optional) 3 Navigator 4 Sensor cable or current output cable 5 Power supply cable 6 Soft keys, assignment depends on menu

A0025813

 1 Mounted on a post

3.2 Housing open

A0039719

 2 Example of a four-channel device with an open display cover (without wiring) 1 Display cable 7 Threaded bolt for protective ground connection 2 Basic module 8 Extension power unit with internal cable 3 Extension modules (optional) 9 M12 connectors for sensor connection

(optional) 4 Shock protection, dummy cover and end cover 10 Distributor terminals for user-defined use 5 Extension backplane 11 Storage slot for SD card 6 Cable mounting rail

Endress+Hauser 9

1) Example: you want to loop the signal from the alarm relay to a siren and a lamp. The terminals on the

alarm relay only accommodate one cable. Route the signal from the alarm relay to a terminal on the distributor block. The block's terminals are all interconnected. You therefore have 3 additional terminals on this block from where you can carry the signal forward to the consumer (siren, lamp etc.). The signal can be multiplied in this way.

Device description Liquiline CM442/CM444/CM448

BASE2-E

Slots

Ports

2DS 2DS 2DS 2AI 2AO 4R

Sensor 1

Sensor 2

3.3 Slot and port assignment

 3 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

 4 Slot and port assignment on the

display

10 Endress+Hauser

Liquiline CM442/CM444/CM448 Device description

1 2

42 41

Relay 1

Relay 2

Relay 3

Relay 4

Slot

Slot 4

Port 1

Pin 41

BASE2-E 2DS

2AO

42 414342 41

42 41

3.4 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)

 5 Creating a terminal diagram using the example of the NO contact (terminal 41) of a relay

A0039621

Endress+Hauser 11

Incoming acceptance and product identification Liquiline CM442/CM444/CM448

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/cm442

www.endress.com/cm444

www.endress.com/cm448

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.

12 Endress+Hauser

Liquiline CM442/CM444/CM448 Incoming acceptance and product identification

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 wiring label (attached at the factory to the inside of the display cover)

• 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.

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

• FM3810

• UL50E

• IEC 60529

• CAN/CSA-C22.2 No. 0

 mark

Endress+Hauser 13

Incoming acceptance and product identification Liquiline CM442/CM444/CM448

• 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

4.4.4 MCERTS

CM442 only

The device has been assessed by Sira Certification Service and complies with "MCERTS Performance Standards for Continuous Water Monitoring Equipment, Part 2: online analysers, Version 3.1, dated August 2010"; Certificate No.: Sira MC140246/01.

14 Endress+Hauser

Liquiline CM442/CM444/CM448 Installation

H 5 6 7 8 I

1 2 3 4 B

162 (6.38)

14 (0.55)

Ø4 (0.16)

Ø9 (0.35)

199 (7.38) 128 (5.04)

237 (9.33)

194 (7.64)

76 (2.99)

95 (3.74)

80 (3.15)

190 (7.48)

3 (0.12)

4 x 6.5 (0.26)

170 (6.69)

125 (4.92)

5 Installation

5.1 Installation conditions

5.1.1 Dimensions

Endress+Hauser 15

 6 Dimensions of field housing in mm (inch)

5.1.2 Mounting plate

 7 Mounting plate, dimensions in mm (in)

A0012396

A0012426

Installation Liquiline CM442/CM444/CM448

320 (12.6)

270 (10.6)

300 (11.8)

80 (3.15)

170 (6.69)

170 (6.69) 80 (3.15)

8 x Ø 7 (0.28)

5.1.3 Protective cover

NOTICE

Effect of climatic conditions (rain, snow, direct sunlight etc.)

Impaired operation to complete transmitter failure are possible!

Always use the weather protection cover (accessory) when installing the device

‣

outdoors.

A0012428

 8 Dimensions in mm (in)

5.2 Mounting the measuring device

5.2.1 Post mounting

You require the post mounting kit (optional) to mount the unit on a pipe, post or railing (square or circular, clamping range 20 to 61 mm (0.79 to 2.40")).

 9 Post mounting 1 Weather protection cover (optional) 5 Spring washers and nuts (post mounting kit) 2 Post mounting plate (post mounting kit) 6 Pipe or railing (circular/square) 3 Spring washers and nuts (post mounting kit) 7 Mounting plate 4 Pipe clamps (post mounting kit) 8 Threaded rods (post mounting kit)

16 Endress+Hauser

A0033044

Liquiline CM442/CM444/CM448 Installation

1 2

 10 Post mounting

A0033045

 11 Attach the device and click it into place

A0025885

1. Place the device on the mounting plate.

2. Slide the device downwards in the guide on the mounting rail until it clicks into place.

5.2.2 Rail mounting

A0012668

 12 Rail mounting 1 Weather protection cover (optional) 6 Pipe or railing (circular/square) 2 Post mounting plate (post mounting kit) 7 Mounting plate 3 Spring washers and nuts (post mounting kit) 8 Threaded rods (post mounting kit) 4 Pipe clamps (post mounting kit) 9 Screws (post mounting kit) 5 Spring washers and nuts (post mounting kit)

Endress+Hauser 17

 13 Rail mounting

A0025886

 14 Attach the device and click it into place

A0027803

1. Place the device on the mounting plate.

2. Slide the device downwards in the guide on the mounting rail until it clicks into place.

Installation Liquiline CM442/CM444/CM448

≥ 340 (13.4)

≥

150 (5.91)

5.2.3 Wall mounting

A0027798

 16 Wall mounting

A0012686

 15 Installation clearance in mm (in)

The size of the drill holes depends on the wall plugs used. The wall plugs and screws must be provided by the

customer.

1 Wall 2

4 drill holes 3 Mounting plate 4 Screws Ø 6 mm (not part of scope of supply)

 17 Wall mounting

A0027799

 18 Attach the device and click it into place

A0027797

1. Place the device on the mounting plate.

2. Slide the device downwards in the guide on the mounting rail until it clicks into place.

5.2.4 Disassembly (for conversion, cleaning etc.)

NOTICE

The device can be damaged if dropped

When pushing the housing out of the holder, secure the housing to prevent it from

‣

falling. If possible, ask a second person to help you.

18 Endress+Hauser

Liquiline CM442/CM444/CM448 Installation

A0025890

 19 Disassembling

 20 Disassembling

1. Hold down the latch.

2. Push up the device to remove it from the holder.

3. Remove the device towards the front.

5.3 Post-installation check

1. After installation, check the transmitter for damage.

2. Check whether the transmitter is protected against precipitation and direct sunlight (e.g. by the weather protection cover).

A0025891

Endress+Hauser 19

Electrical connection Liquiline CM442/CM444/CM448

USB

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)

 21 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

Switch position "on" (substitutes the resistor)

6.1.2 Via PROFIBUS DP

A0039620

 22 PROFIBUS DP

T Terminating resistor

20 Endress+Hauser

A0039617

Liquiline CM442/CM444/CM448 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

 23 Modbus RS485

T Terminating resistor

6.1.4 Via Ethernet: web server/Modbus TCP/PROFINET/ EtherNet/IP

A0039616

 24 Modbus TCP or EtherNet/IP or PROFINET

6.2 Connecting the measuring device

WARNING

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 21

Electrical connection Liquiline CM442/CM444/CM448

≤180°

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 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 pointed or sharp objects,e.g. knives, to open the housing.

‣

Only use a suitable Phillips screwdriver.

‣

 25 Releasing housing screws in a diagonally

opposite sequence with Phillips screwdriver

 26 Opening display cover, max. opening angle

180˚ (depends on installation position)

1. Release the housing screws on a step-by-step basis. Start with any screw of your choice. Then release the screw diagonally opposite this screw etc.

2. To close the housing: tighten the screws in a similar step-by-step, diagonally opposite sequence.

22 Endress+Hauser

Liquiline CM442/CM444/CM448 Electrical connection

1 32 4

6.2.2 Cable mounting rail

A0025171

 27 Cable mounting rail and associated function 1 Cable mounting rail 3 Additional threaded bolts for ground connections 2 Threaded bolt (protective ground connection,

central grounding point)

4 Cable clamps (fixing and grounding the sensor

cables)

6.2.3 Connecting the cable shield

If possible, only use terminated original cables. The sensor, fieldbus and Ethernet cables must be shielded cables.

Cable sample (does not necessarily correspond to the original cable supplied)

 28 Terminated cable

1 Outer shield (exposed) 2 Cable cores with ferrules 3 Cable sheath (insulation)

1) Please note the instructions in the "Ensuring the degree of protection" section (→  38)

 29 Insert the cable

4 Grounding clip

 30 Tighten screw (2 Nm)

The cable shield is grounded using the grounding clamp.

1. Release a suitable cable gland on the bottom of the housing and remove the dummy plug.

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 the cable clamp on.

5. Clamp the cable into place.

6. Then tighten the screw of the cable clamp again.

7. Connect cable cores as per the wiring diagram.

8. Tighten the cable gland from outside.

Endress+Hauser 23

Electrical connection Liquiline CM442/CM444/CM448

6.2.4 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).

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.

‣

stop.

Remove the screwdriver (closes

‣

the terminal).

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).

24 Endress+Hauser

Liquiline CM442/CM444/CM448 Electrical connection

N/- L/+

Display

Sensor supply

+ –

Service

PK GY PK GY

–

L N

Power

L/+ N/– PE

+ – A

Alarm

0/4 ... 20 mA

–

HART

+ – A B

Sensor 2

Ethernet

87 88 97 98

BN WH GN YE

Sensor 1

1 2

6.2.5 Connecting the supply voltage for the CM442

A0039627

 31 Connecting power supply on the BASE2-H or -

H Power unit 100 to 230 VAC L Power unit 24 VAC or 24 VDC

 32 Overall wiring diagram for BASE2-H or -L

A0039625

Connecting the supply voltage

1. Route the power supply cable into the housing through the suitable cable entry.

2. Step 2 applies only to the 100 to 230 V AC power unit. Connect the protective ground of the power unit to the threaded bolt specially

provided on the cable mounting rail.

3. Protective ground or grounding provided by customer (absolutely essential for 24 V power unit, additionally recommended for 100 to 230 V AC power unit): Provide a ground cable (min. 0.75 mm2 (corresponding to 18 AWG))1! Guide the ground cable also through the cable entry and connect it to the threaded bolt on the cable mounting rail.

4. Connect the cable cores L and N (100 to 230 V AC) or + and ‐ (24 V DC) to the plugin terminals on the power unit in accordance with the wiring diagram.

1 Protective ground of power unit 2 Serrated washer and nut 3 Protective ground / ground cable, provided by

customer (min. 0.75 mm2 ( 18 AWG)) 4 Serrated washer and nut 5 Mounting bolts

 33 Protective ground or grounding

connection

1) For a fuse with a rating of 10 A. For a fuse with a rating of 16 A, the protective ground / ground cable must have a cross-sectional area of at least 1.5 mm2 ( 14 AWG).

Endress+Hauser 25

Electrical connection Liquiline CM442/CM444/CM448

L+ N- PE

Display

Sensor supply

+ –

Service

PK GY PK GY

–

+ – A

Alarm

0/4 ... 20 mA

–

HART

+ – A B

Sensor 2

Ethernet

87 88 97 98

BN WH GN YE

Sensor 1

L/+

N/–

Power

L/+

N/–

Power

(internal)

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!

6.2.6 Connecting the supply voltage for the CM444 and the CM448

A0039626

 34 Power supply connection on the BASE2-E

A Internal power supply cable B Extension power unit

 35 Overall wiring diagram for BASE2-E and

extension power unit (B)

Connecting the supply voltage

1. Route the power supply cable into the housing through the suitable cable entry.

2. Step 2 applies only to the 100 to 230 V AC power unit. Connect the protective ground of the power unit to the threaded bolt specially

provided on the cable mounting rail.

26 Endress+Hauser

cable also through the cable entry and connect it to the threaded bolt on the cable mounting rail.

4. Connect the cable cores L and N (100 to 230 V AC) or + and ‐ (24 V DC) to the plugin terminals on the power unit in accordance with the wiring diagram.

A0039624

Liquiline CM442/CM444/CM448 Electrical connection

1 2

1 Protective ground of power unit 2 Serrated washer and nut 3 Protective ground / ground cable, provided by

customer (min. 0.75 mm2 ( 18 AWG)) 4 Serrated washer and nut 5 Mounting bolts

 36 Protective ground or grounding

connection

1) For a fuse with a rating of 10 A. For a fuse with a rating of 16 A, the protective ground / ground cable must have a cross-sectional area of at least 1.5 mm2 ( 14 AWG).

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!

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

Endress+Hauser 27

Electrical connection Liquiline CM442/CM444/CM448

The following rule applies if connecting CUS71D sensors:

• CM442

• 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.

• CM444 No restrictions. All the sensor inputs can be used as required.

• CM448

• 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.

6.3.2 Connecting the sensors

Types of 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 (→  37 ff.)

• Optional: Sensor cable plug connected to the M12 sensor socket on the underside of the device With this type of connection, the device is already wired at the factory (→  40).

1. 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.

2. When connecting via M12 connector Connect the sensor connector to an M12 sensor socket which has been previously

installed or is supplied on delivery.

28 Endress+Hauser

Liquiline CM442/CM444/CM448 Electrical connection

98 97 88 87

86 85 86 85

Sensor

98 97 88 87

86 85 86 85

GN YE

Sensor

85 86

2DS

97 88 8798

Sensor 1

Sensor 2

GN YE

BN WH GN YE

Sensor

Sensor cable connected directly

 37 sensors without additional supply voltage

 39 sensors with and without additional supply

voltage at sensor module 2DS

A0039629

 38 sensors with additional supply voltage

A0033206

A0039622

Endress+Hauser 29

Electrical connection Liquiline CM442/CM444/CM448

85 86

97 88 8798

Sensor 1

GN YE

BN WH

connection via M12 plug-in connection

Device versions with a pre-installed M12 socket are ready-wired upon delivery.

Version without a pre-installed M12 socket

1. Insert an M12 socket (accessory) into a suitable opening in the base of the housing.

2. Connect the cable to a Memosens terminal as per the wiring diagram.

Connecting the sensor

Plug the connector of the sensor

‣

cable (→  40item 1) directly into the M12 socket.

Please note the following:

• The internal device wiring is always the same regardless of what kind of sensor you connect to the M12 socket (plug&play).

• The signal or power supply cables are assigned in the sensor head in such a way that the PK and GY power supply cables are either used (e.g. optical sensors) or not (e.g. pH or ORP sensors).

A0018019

 40 M12 plug-in connection (e.g.

at sensor module)

1 Sensor cable with M12

connector

A0018021

 41 M12 assignment Top:

socket Bottom: connector (top view in each case)

1 PK (24 V) 2 GY (Ground 24 V) 3 BN (3 V) 4 WH (Ground 3 V) 5 GN (Memosens) 6 YE (Memosens) 7,NCNot connected

6.4 Connecting additional inputs, outputs or relays

WARNING

Module not covered

No shock protection. Danger of electric shock!

Change or extend the hardware: always fill the slots from left to right. Do not leave any

‣

gaps. If all of the slots are not occupied: always insert a dummy cover or end cover in the slot

‣

to the right of the last module(→  2,  9). This ensures that the unit is shockprotected. Always ensure shock protection is guaranteed particularly in the case of relay modules

‣

(2R, 4R, AOR).

If additional shields are required, connect them with PE centrally in the control cabinet

‣

via terminal blocks supplied by the customer.

30 Endress+Hauser

+ 136 hidden pages