Endress+Hauser Liquisys M CLM223, Liquisys M CLM253 Operating Instructions Manual

Download

Page 1

Products Solutions Services

Operating Instructions

Liquisys M CLM223/253

Transmitter for Conductivity

BA00193C/07/EN/15.15 71300836

Page 2

Page 3

Liquisys M CLM223/253 Table of contents

Endress+Hauser 3

Table of contents

1 Document information .............. 5

1.1 Warnings ............................ 5

1.2 Symbols used .......................... 5

1.3 Symbols on the device ................... 5

1.4 Electrical symbols ...................... 6

2 Basic safety instructions ............ 7

2.1 Requirements for personnel ............... 7

2.2 Designated use ........................ 7

2.3 Occupational safety ..................... 7

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

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

2.5.1 State of the art .................. 8

2.5.2 IT security ...................... 8

3 Incoming acceptance and product

identification ....................... 9

3.1 Incoming acceptance .................... 9

3.2 Scope of delivery ....................... 9

3.3 Product identification ................... 10

3.3.1 Nameplate .................... 10

3.3.2 Product identification ............ 10

3.4 Certificates and approvals ............... 10

3.4.1  mark ...................... 10

3.4.2 CSA General Purpose ............. 10

4 Installation ....................... 11

4.1 Installation at a glance .................. 11

4.1.1 Measuring system ............... 12

4.2 Installation conditions .................. 13

4.2.1 Field device .................... 13

4.2.2 Panel-mounted device ............ 14

4.3 Installation instructions ................. 15

4.3.1 Field device .................... 15

4.3.2 Panel-mounted device ............ 17

4.4 Post-installation check .................. 17

5 Electrical connection .............. 18

5.1 Wiring ............................. 18

5.1.1 Wiring diagram ................. 18

5.1.2 Measuring cables and sensor

connection .................... 21

5.2 Alarm contact ........................ 24

5.3 Post-connection check .................. 24

6 Operation options ................. 25

6.1 Quick operation guide .................. 25

6.2 Display and operating elements ........... 25

6.2.1 Display ....................... 25

6.2.2 Operating elements .............. 27

6.2.3 Key functions .................. 27

6.3 Local operation ....................... 29

6.3.1 Automatic/manual mode .......... 29

6.3.2 Operating concept ............... 30

7 Commissioning .................... 32

7.1 Function check ....................... 32

7.2 Switching on ......................... 32

7.3 Quick Setup .......................... 34

7.4 Device configuration ................... 37

7.4.1 Setup 1 (conductivity) ............ 37

7.4.2 Setup 2 (temperature) ............ 39

7.4.3 Current input .................. 42

7.4.4 Current outputs ................. 45

7.4.5 Alarm ........................ 49

7.4.6 Check ........................ 50

7.4.7 Relay configuration .............. 53

7.4.8 Temperature compensation with

table ......................... 69

7.4.9 Concentration Measurement ....... 70

7.4.10 Service ....................... 73

7.4.11 E+H Service .................... 75

7.4.12 Interfaces ..................... 76

7.4.13 Communication ................. 76

7.5 Calibration .......................... 77

8 Diagnostics and troubleshooting ... 81

8.1 Trouble shooting instructions ............. 81

8.2 System error messages .................. 81

8.3 Process-specific errors .................. 84

8.4 Device-specific errors ................... 88

9 Maintenance ...................... 90

9.1 Maintenance of the entire measuring point .. 90

9.1.1 Cleaning the transmitter .......... 90

9.1.2 Cleaning the conductivity sensors ... 91

9.1.3 Simulation of conductive sensors for

device testing .................. 91

9.1.4 Simulation of inductive sensors for

device testing .................. 92

9.1.5 Checking conductive sensors ....... 93

9.1.6 Checking inductive sensors ........ 94

9.1.7 Assembly ..................... 94

9.1.8 Connecting cables and junction

boxes ........................ 94

10 Repair ............................ 95

10.1 Spare parts .......................... 95

10.2 Disassembling the panel-mounted device .... 95

10.3 Disassembling the field device ............ 98

10.4 Replacing the central module ............ 102

10.5 Return ............................. 103

10.6 Disposal ........................... 103

Page 4

Table of contents Liquisys M CLM223/253

4 Endress+Hauser

11 Accessories ...................... 104

11.1 Sensors ............................ 104

11.1.1 Sensors with conductive

measurement of conductivity ...... 104

11.1.2 Sensors with inductive measurement

of conductivity ................ 104

11.2 Connection accessories ................. 105

11.3 Installation accessories ................ 105

11.4 Software and hardware add-ons .......... 106

11.5 Calibration solutions .................. 107

12 Technical data ................... 108

12.1 Input .............................. 108

12.2 Output ............................ 108

12.3 Power supply ........................ 112

12.4 Performance characteristics ............. 113

12.5 Environment ........................ 113

12.6 Mechanical construction ............... 114

13 Appendix ........................ 115

Index ................................. 120

Page 5

Liquisys M CLM223/253 Document information

Endress+Hauser 5

1 Document information

1.1 Warnings

Structure of information Meaning

DANGER

Causes (/consequences)

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.

WARNING

Causes (/consequences)

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.

CAUTION

Causes (/consequences)

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

Consequences of non-compliance (if applicable)

‣

Action/note

This symbol alerts you to situations which may result in damage to property.

1.2 Symbols used

Additional information, tips Permitted or recommended Forbidden or not recommended

1.3 Symbols on the device

Symbol Meaning

Reference to device documentation

Page 6

Document information Liquisys M CLM223/253

6 Endress+Hauser

1.4 Electrical symbols

Symbol Meaning

A0027423

Direct current

A terminal at which DC is present or through which DC flows.

A0027424

Alternating current

A terminal to which alternating voltage (sine-wave) is applied or through which alternating current flows.

A0027425

Direct current or alternating current

A terminal at which direct voltage or alternating voltage is present or through which direct current or alternating current flows.

A0027426

Ground connection

A terminal which, from the user's point of view, is already grounded via a grounding system.

A0027427

Protective ground connection

A terminal which must be connected to ground prior to establishing any other connections.

A0019929

Class II equipment

Reinforced or double insulation

A0027420

Alarm relay

A0027428

Input

A0027429

Output

A0027430

DC voltage source

A0027431

Temperature sensor

Page 7

Liquisys M CLM223/253 Basic safety instructions

Endress+Hauser 7

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.

• Measuring point faults may be repaired only by authorized and specially trained personnel.

Repairs not described in the Operating Instructions provided may only be carried out directly by the manufacturer or by the service organization.

2.2 Designated use

Liquisys M is a transmitter for determining the conductivity and resistivity of liquid media.

The transmitter is particularly suited for use in the following areas:

• Ultrapure water

• Water treatment

• Cooling water desalination

• Condensate treatment

• Municipal wastewater treatment plants

• Chemical industry

• Food industry

• Pharmaceutical industry

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 Occupational safety

As the user, you are responsible for complying with the following safety conditions:

• Installation guidelines

• Local standards and regulations

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 these Operating Instructions.

Page 8

Basic safety instructions Liquisys M CLM223/253

8 Endress+Hauser

2.4 Operational safety

1. Before commissioning the entire measuring point, verify that all connections are correct. Ensure that electrical cables and hose connections are undamaged.

2. Do not operate damaged products, and safeguard them to ensure that they are not operated inadvertently. Label the damaged product as defective.

3. If faults cannot be rectified: Take the products out of operation and safeguard them to ensure that they are not

operated inadvertently.

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 European 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.

Page 9

Liquisys M CLM223/253 Incoming acceptance and product identification

Endress+Hauser 9

3 Incoming acceptance and product

identification

3.1 Incoming acceptance

1. Verify that the packaging is undamaged.  Notify your supplier of any damage to the packaging.

Keep the damaged packaging until the matter has been settled.

2. Verify that the contents are undamaged.  Notify your supplier of any damage to the delivery contents.

Keep the damaged products until the matter has been settled.

3. Check the delivery for completeness.  Check it against the delivery papers and 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.

The permitted ambient conditions must be observed (see "Technical data").

If you have any questions, please contact your supplier or your local sales center.

3.2 Scope of delivery

The delivery of the field device comprises:

• 1 transmitter CLM253

• 1 plug-in screw terminal, 3-pin

• 1 cable gland Pg 7

• 1 cable gland Pg 16 reduced

• 2 cable glands Pg 13.5

• 1 set of Operating Instructions

• For versions with HART communication: 1 set of Operating Instructions: Field communication with HART

• For versions with PROFIBUS interface: 1 set of Operating Instructions: Field communication with PROFIBUS PA/DP

The delivery of the panel-mounted device comprises:

• 1 transmitter CLM223

• 1 set of plug-in screw terminals

• 2 tensioning screws

• 1 set of Operating Instructions

• For versions with HART communication: 1 set of Operating Instructions: Field communication with HART

• For versions with PROFIBUS interface: 1 set of Operating Instructions: Field communication with PROFIBUS PA/DP

Page 10

Incoming acceptance and product identification Liquisys M CLM223/253

10 Endress+Hauser

3.3 Product identification

3.3.1 Nameplate

The nameplate provides you with the following information on your device:

• Manufacturer identification

• Order code

• Extended order code

• Serial number

• Ambient and process conditions

• Input and output values

• Safety information and warnings

Compare the data on the nameplate with your order.

3.3.2 Product identification

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 the product page for your product on the Internet.

2. In the navigation area on the right-hand side, select "Check your device features" under "Device support".

 An additional window opens.

3. Enter the order code from the nameplate into the search field.  You will receive information on each feature (selected option) of the order code.

3.4 Certificates and approvals

3.4.1  mark

The product meets the requirements of the harmonized European standards. As such, it complies with the legal specifications of the EC directives. The manufacturer confirms successful testing of the product by affixing to it the  mark.

3.4.2 CSA General Purpose

The following device versions meet the requirements of CSA and ANSI/UL for Canada and the US:

• CLM253-**2/3/7***

• CLM223-**2/3/7***

Page 11

Liquisys M CLM223/253 Installation

Endress+Hauser 11

4 Installation

4.1 Installation at a glance

Proceed as follows to completely install the measuring point:

• Install the transmitter (see the "Installation instructions" section).

• If the sensor is not yet installed in the measuring point, install it (see Technical Information of the sensor).

• Connect the sensor to the transmitter as illustrated in the "Electrical connection" section.

• Connect the transmitter as illustrated in the "Electrical connection" section.

• Commission the transmitter as explained in the "Commissioning" section.

Page 12

Installation Liquisys M CLM223/253

12 Endress+Hauser

4.1.1 Measuring system

A complete measuring system comprises:

• Transmitter Liquisys M CLM223 or CLM253

• sensor with or without an integrated temperature sensor

• If necessary, Measuring cable: CYK71 or CPK9 (conductive) or CLK6 (inductive)

Optionally:

• Eintaucharmatur, z.B. CLA111

• Extension cable, junction box VBM

• Weather protection cover CYY101 for field housing

ENDRESS+HAUSER LIQUISYS S

A0024642

 1 Complete measuring systems

1 Conductive sensor CLS15 2 Liquisys M CLM253 3 Liquisys M CLM223 4 Inductive sensor CLS54 5 Inductive sensor CLS50 6 Conductive sensor CLS21 7 Immersion assembly CLA111

Page 13

Liquisys M CLM223/253 Installation

Endress+Hauser 13

4.2 Installation conditions

4.2.1 Field device

Pg 7

Pg 16

M 5

11 (0.43)

Ø 6 (0.24)

115 (4.53)

157 (6.18)

247 (9.72)

70 (2.76)

154 (6.06)

170 (6.69)

Pg 13.5

A0024637

 2 Field device, dimensions in mm (inch)

There is a hole in the perforation for the cable entry (connection of supply voltage). It serves as a pressure balance during air shipment. Make sure no moisture penetrates the inside of the housing before the cable installation. The housing is completely airtight after cable installation.

Page 14

Installation Liquisys M CLM223/253

14 Endress+Hauser

A0024640

 3 View into the field housing

1 Removable electronics box 2 Terminals 3 Partition plate 4 Fuse

4.2.2 Panel-mounted device

90 (3.54)

139 (5.47)

96 (3.78)

6 (0.24)

92 (3.62)

149.5 (5.89)

A0024641

 4 Panel-mounted device, dimensions in mm (inch)

Page 15

Liquisys M CLM223/253 Installation

Endress+Hauser 15

4.3 Installation instructions

4.3.1 Field device

There are several ways of securing the field housing:

• Wall mounting with fixing screws

• Post mounting to cylindrical pipes

• Post mounting to a square securing mast

NOTICE

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

Impaired operation to complete transmitter failure

‣

When installing outside, always use the weather protection cover (accessory).

Transmitter wall mounting

154 (6.06)

Ø 6 (0.24)

A0024638

 5 Field device wall mounting

1 Fixing bore holes 2 Plastic caps

Proceed as follows to mount the transmitter on the wall:

• Create the bore holes as shown in →  5.

• Drive two fixing screws through the fixing bore holes (1) from the front.

• Mount the transmitter on the wall as shown.

• Cover the bores with plastic caps (2).

Transmitter post mounting

You require a post mounting kit to secure the field device to horizontal and vertical posts or pipes (max. Ø 60 mm (2.36")). This can be acquired as an accessory (see the "Accessories" section).

Page 16

Installation Liquisys M CLM223/253

16 Endress+Hauser

Ø max. 60 (2.36)

A0024635

 6 Field device on horizontal or vertical pipes

1 Securing screws 2 Fixing screws 3 Securing plate

Proceed as follows to mount the transmitter on a post:

1. Guide the two securing screws (1) of the mounting kit through the openings on the securing plate (3).

2. Screw the securing plate onto the transmitter using the four fixing screws (2).

3. Secure the bracket with the field device on the post or pipe using the clip.

You can also secure the field device to the Flexdip CYH112 bracket in conjunction with the weather protection cover. These can be acquired as accessories, see the "Accessories" section.

A0027433

 7 Field device on Flexdip CYH112 bracket with weather protection cover

Page 17

Liquisys M CLM223/253 Installation

Endress+Hauser 17

4.3.2 Panel-mounted device

The panel-mounted device is secured with the tensioning screws supplied →  8

The necessary installation depth is approx. 165 mm (6.50").

92 (3.62

+0.5 +0.02

)

92 (3.62

+0.5 +0.02

)

90 (3.54)

57 (2.24)

33 (1.30)

~ 25 (0.98)

139 (5.47)

max. 45 (1.77)

6 (0.24)

96 (3.78)

~ 165 (6.50)*

92 (3.62)

A0024639

 8 Dimensions in mm (inch)

1 Mounting plate 2 Seal 3 Tensioning screws * Necessary installation depth

4.4 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).

Page 18

Electrical connection Liquisys M CLM223/253

18 Endress+Hauser

5 Electrical connection

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.

5.1 Wiring

WARNING

Risk of electric shock!

‣

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 power supply.

NOTICE

The device does not have a power switch

‣

The customer must provide a protected circuit breaker in the vicinity of the device.

‣

The circuit breaker must be a switch or power switch, and you must label it as the circuit breaker for the device.

5.1.1 Wiring diagram

The wiring diagram shows the connections of a device equipped with all the options. The connection of the sensors to the various measuring cables is explained in more detail in the "Measuring cables and sensor connection" section.

Page 19

Liquisys M CLM223/253 Electrical connection

Endress+Hauser 19

15 V

10-50 V

L+

L–N

~ =

23 +

24 -

85+

A0008920

 9 Electrical connection of the transmitter

A Sensor (conductive) I Alarm (current-free contact position) B Sensor (inductive) J Relay 1 (current-free contact position) C Temperature sensor K Relay 2 (current-free contact position) D Signal output 1, conductivity L Relay 3 (current-free contact position) E Signal output 2, user-definable variable M Relay 4 (current-free contact position) F Binary input 1 (hold) N Current input 4 to 20 mA G Binary input 2 (Chemoclean) O Power connection H Auxiliary voltage output

Page 20

Electrical connection Liquisys M CLM223/253

20 Endress+Hauser

Please note the following:

• The device is approved for protection class II and is generally operated without a protective ground connection.

• To guarantee measuring stability and functional safety, you must connect the outer shield of the sensor cable: – Inductive sensors: terminal "S" – Conductive sensors: PE distributor rail

This is on the cover frame in the case of panel-mounted devices, and in the connection compartment in the case of field devices. Ground this PE distributor rail or the ground terminal directly on site wherever possible.

• Circuits "E" and "H" are not galvanically isolated from each other.

Field device connection

Guide the measuring cables through the PG glands into the housing. Connect the measuring cables in accordance with the terminal assignment.

+++++ -----

434154 55 56

121311

83 84 15

32163433SNC 938685 94 81 82 NC

51 52 53 57 58 59 47 48 49

Temp.

(opt. )

+15V

10mA

REL 4SENSO R REL 3 REL 2 REL 1

13109 5-4F

11 12

Mains Hilfs energ ie

L1+N

(AC) (DC)

Conta cts: max. 2A AC: 250 V/500 VA DC: 30V /60W

+ -

23 24

4..20 mA

Binär/

Binary

Binär/

Binary

A0008915

 10 Field device connection compartment sticker

1 PE distributor rail for CD/CS device version (conductive sensors)

Panel-mounted device connection

Page 21

Liquisys M CLM223/253 Electrical connection

Endress+Hauser 21

31 +

Senso r

32 -

33 +

34 -

85 +

86 -

93 +

94 - 42

81 + 43

82 - 41

Temp. (opt. )

+15V 10mA

13108 1-4E

Mains

Contac ts: max. 2A, AC:2 50V/500VA, DC:3 0V/60W

L1 +

AC DC

N -

REL1

REL2

REL3

REL4

4..20 mA

COM

13108 4-4C

L1 +

AC DC

N -

Binary

A0008912

 11 Panel-mounted device connection sticker

1 Ground terminal

5.1.2 Measuring cables and sensor connection

You require shielded special measuring cables to connect conductivity sensors to the transmitter. The following multi-core, pre-terminated cable types can be used:

Sensor type Cable Extension

Two-electrode sensor with or without temperature sensor Pt 100

CYK71 CPK9* (for CLS16)

VBM box + CYK71 cable

Inductive sensor CLS50, CLS52 Fixed cable on sensor VBM box + CLK6 cable

* High-temperature version without PML

Maximum cable length

Conductive measurement of conductivity

Max. 100 m (328 ft) with CYK71

Resistance measurement Max 15 m (49.2 ft) with CYK71

Inductive measurement of conductivity Max. 55 m ( 180 ft) with CLK5 (incl. sensor cable)

Structure and termination of the measuring cables

Page 22

Electrical connection Liquisys M CLM223/253

22 Endress+Hauser

CYK71

CLK6

green

white

yellow

brown (nc)

black

white red

semiconductor screen

semiconductor

screen

A0008938-EN

 12 Structure of the special measuring cables

A Semi-conductor layer sc Shield

For further information on the cables and junction boxes, please refer to the "Accessories" section.

Field device measuring cable connection

Proceed as follows to connect a conductivity sensor to the field device:

1. Open the housing cover to access the terminal block in the connection compartment.

2. Break through the perforation for a cable gland, mount a cable gland and guide the cable through this gland.

3. Connect the cable in accordance with the terminal assignment (see connection compartment sticker).

4. Tighten the cable gland.

Panel-mounted device measuring cable connection

Page 23

Liquisys M CLM223/253 Electrical connection

Endress+Hauser 23

To connect a conductivity sensor, connect the measuring cable in accordance with the terminal assignment to the terminals on the rear of the device (see connection sticker).

GN WH YE

CYK71/CPK9

83 16 15 84

23 1

11 12 13

A0008919

 13 Connection of conductive sensors

161584

CLK6

A0008918

 14 Connection of inductive sensors

Page 24

Electrical connection Liquisys M CLM223/253

24 Endress+Hauser

5.2 Alarm contact

A0006415

 15 Recommended fail-safe switching for the alarm contact

A Normal operating status B Alarm condition

Normal operating status Alarm condition

Device in operation and no error message present (alarm LED off):

• Relay energized

• Contact 42/43 closed

Error message present (alarm LED red) or device defective or de-energized (alarm LED off):

• Relay de-energized

• Contact 41/42 closed

5.3 Post-connection check

Carry out the following checks once you have made the electrical connection:

Device state and specifications Notes

Are the devices and cables free from damage on the outside? Visual inspection

Electrical connection Notes

Are the mounted cables strain relieved?

Are the connected cables provided with strain relief?

Is the cable run correct, without loops and cross-overs?

Are the power cable and signal cables connected correctly and in accordance with the wiring diagram?

Are all the screw terminals tightened?

Are all the cable entries fitted, tightened and leak-proof?

Are the PE distributor blocks grounded (if present)? Grounding is carried out at the point of

installation.

Page 25

Liquisys M CLM223/253 Operation options

Endress+Hauser 25

6 Operation options

6.1 Quick operation guide

You have the following ways of operating the transmitter:

• On site via the key field

• Via the HART interface (optional, with corresponding order version) with: – HART handheld terminal – PC with HART modem and the Fieldcare software package

• Via PROFIBUS PA/DP (optional, with corresponding order version) by PC with a corresponding interface and the Fieldcare software package or via a programmable logic controller (PLC).

For operation via HART or PROFIBUS PA/DP, please read the relevant sections in the additional Operating Instructions:

• PROFIBUS PA/DP, field communication for Liquisys M CXM223/253, BA00209C/07/EN

• HART, field communication for Liquisys M CXM223/253, BA00208C/07/EN

The following section only explains operation via the keys.

6.2 Display and operating elements

6.2.1 Display

LED displays

A0027220

Indicates the current operating mode, "Auto" (green LED) or "Manual" (yellow LED)

A0027222

Indicates the activated relay in the "Manual" mode (red LED) The status of relays 3 and 4 is indicated on the LC display.

A0027221

Indicates the working status of relay 1 and 2 LED green: measured value within the permitted limit, relay inactive LED red: measured value outside the permitted limit, relay active

A0027218

Alarm display, e.g. in event of continuous limit value overshoot, temperature sensor failure or system error (see error list)

Page 26

Operation options Liquisys M CLM223/253

26 Endress+Hauser

LC display

mS/cm R232

2 3

Setpoint

A0008922-EN

 16 Transmitter LC display

1 Indicator for measuring mode (normal operation) 2 Indicator for calibration mode 3 Indicator for setup mode (configuration) 4 Indicator for "Hold" mode (current outputs remain at last current state) 5 Indicator for receipt of a message on devices with communication 6 Indicator of working status of relays 3/4: inactive, active 7 Function code 8 In measuring mode: measured variable - in setup mode: configured variable 9 In measuring mode: secondary measured value - in setup/calibr. mode: e.g. set value 10 Indicator for autom. Temperature compensation 11 Indicator for man. Temperature compensation 12 "Error": error display 13 Sensor symbol (see the "Calibration" section)

Page 27

Liquisys M CLM223/253 Operation options

Endress+Hauser 27

6.2.2 Operating elements

The display shows the current measured value and the temperature simultaneously, which means you have an overview of the most important process data at once. Help text in the configuration menu helps users configure the device parameters.

A0024632-EN

 17 Operating elements

1 LC display for displaying the measured values and configuration data 2 Key to switch relays in manual mode and to display the active contact 3 LED for alarm function 4 Changeover switch for automatic/manual mode 5 LEDs for limit contactor relay (switch status) 6 Main operating keys for calibration and device configuration 7 Field for user-defined information

6.2.3 Key functions

A0027235

CAL key

When you press the CAL key, the device first prompts you for the calibration access code:

• Code 22 for calibration

• Code 0 or any other code for reading the last calibration data

Use the CAL key to accept the calibration data or to switch from field to field within the calibration menu.

A0027236

ENTER key

When you press the ENTER key, the device first prompts you for the setup mode access code:

• Code 22 for setup and configuration

• Code 0 or any other code for reading all the configuration data.

The ENTER key has several functions:

• Calls up the Setup menu from the measuring mode

• Saves (confirms) data entered in the setup mode

• Moves on within function groups

Page 28

Operation options Liquisys M CLM223/253

28 Endress+Hauser

A0027240

PLUS key and MINUS key

In the Setup mode, the PLUS and MINUS keys have the following functions:

• Selection of function groups. Press the MINUS key to select the function groups in the order given in the "System configuration" section.

• Configuration of parameters and numerical values

• Operation of the relays in manual mode

In the measuring mode, the following sequence of functions is accessed by repeatedly pressing the PLUS key:

• Temperature displayed in °F

• Temperature is hidden

• Current input signal in %

• Current input signal in mA

• Uncompensated conductivity value is displayed

• Return to basic settings

In the measuring mode, the following sequence of information is displayed by repeatedly pressing the MINUS key:

• The current errors are displayed consecutively (max. 10).

• Once all the errors have been displayed, the standard measurement display appears. In the function group F, an alarm can be defined separately for each error code.

A0027241

REL key

In the manual mode, you can use the REL key to switch between the relay and the manual start of cleaning. In automatic mode, you can use the REL key to read out the switchon points (for limit contactor) or set points (for PID controller) assigned to the relay in question. Press the PLUS key to jump to the settings of the next relay. Use the REL key to get back to the display mode (automatic return after 30 s).

A0027234

AUTO key

Use the AUTO key to switch between automatic mode and manual mode.

A0027237

Escape function

If you press the PLUS and MINUS key simultaneously, you return to the main menu, or are taken to the end of calibration if calibrating. If you press the PLUS and MINUS key again, you return to the measuring mode.

A0027238

Locking the keyboard

Press the PLUS and ENTER key simultaneously for at least 3 s to lock the keyboard against any unauthorized data entry. All the settings can continue to be read. The code prompt displays the code 9999.

A0027239

Unlocking the keyboard

Press the CAL and MINUS key simultaneously for at least 3 s to unlock the keyboard. The code prompt displays the code 0.

Page 29

Liquisys M CLM223/253 Operation options

Endress+Hauser 29

6.3 Local operation

6.3.1 Automatic/manual mode

The transmitter normally operates in automatic mode. Here, the relays are triggered by the transmitter. In the manual mode, you can trigger the relays manually using the REL key or start the cleaning function.

How to change the operating mode:

A0027242

1. The transmitter is in automatic mode. The top LED (green) next to the AUTO key is lit.

A0027243

2. Press the AUTOMATIC key.

A0027240

3. To enable the manual mode, enter the code 22 via the PLUS and MINUS keys and press ENTER to confirm. The lower LED (manual mode) is lit.

A0027241

4. Select the relay or the function. You can use the REL key to switch between the relays. The relay selected and the switch status (ON/OFF) is displayed on the second line of the display. In the manual mode, the measured value is displayed continuously (e.g. for measured value monitoring for dosing functions).

A0027240

5. Switch the relay. The relay is switched on with PLUS and switched off with MINUS. The relay remains in this switched state until it is switched again.

A0027234

6. Press the AUTOMATIC key to return to the measuring mode, i.e. to the automatic mode. All the relays are triggered again by the transmitter.

• The operating mode remains in effect even after a power failure. The relays assume the quiescent state, however.

• The manual mode has priority over all other automatic functions.

• Hardware locking is not possible in the manual mode.

• The manual settings are kept until they are actively reset.

• Error code E102 is signaled during manual operation.

Page 30

Operation options Liquisys M CLM223/253

30 Endress+Hauser

6.3.2 Operating concept

Operating modes

Code

Measuring mode: standard mode of operation, displaying current measured values

Setup mode access to all configuration settings

Calibration mode: execution of calibration routine

The function groups are selected with the PLUS or MINUS key.

A0027244-EN

 18 Description of the possible operating modes

If no key is pressed in the setup mode for approx. 15 min, the device automatically returns to the measuring mode. Any active hold (hold during setup) is canceled.

Access codes

All device access codes are fixed and cannot be altered. When the device requests the access code, it distinguishes between different codes.

• CAL key + code 22: access to Calibration and Offset menu

• ENTER key + code 22: access to the menus for the parameters which make configuration and user-specific settings possible

• PLUS + ENTER keys simultaneously (min. 3 s): lock the keyboard

• CAL + MINUS keys simultaneously (min. 3 s): unlock the keyboard

• CAL or ENTER key + any code: access to read mode, i.e. all the settings can be read but not modified. The device continues measuring in the read mode. It does not shift to the "Hold" status. The current output and the controllers remain active.

Page 31

Liquisys M CLM223/253 Operation options

Endress+Hauser 31

Menu structure

The configuration and calibration functions are arranged in function groups.

• In the setup mode, select a function group with the PLUS and MINUS keys.

• In the function group itself, switch from function to function with the ENTER key.

• Within the function, select the desired option with the PLUS and MINUS keys or edit the settings with these keys. Then confirm with the ENTER key and continue.

• Press the PLUS and MINUS keys simultaneously (Escape function) to exit programming (return to the main menu).

• Press the PLUS and MINUS keys simultaneously again to switch to the measuring mode.

If a modified setting is not confirmed by pressing ENTER, the old setting is retained.

An overview of the menu structure is provided in the Appendix to these Operating Instructions.

E E

A0027245

 19 Menu structure

1 Functions (selection of parameters, entry of numbers) 2 Function groups, scroll backwards and forwards with the PLUS and MINUS keys 3 Switch from function to function with the ENTER key

Hold function: "freeze" the outputs

In both the setup mode and during calibration, the current output can be "frozen" (factory setting), i.e. it constantly retains its current status. "HOLD" appears on the display. If the controller actuating variable (steady control 4 to 20 mA) is output via current output 2, it is set to 0/4 mA during a hold.

• Hold settings can be found in the "Service" function group.

• During a hold, all contacts assume a quiescent state.

• An active hold has priority over all other automatic functions.

• With every hold, the I-component of the controller is set to "0".

• Any alarm delay is reset to "0".

• This function can also be activated externally via the hold input (see Wiring diagram; binary input 1).

• A manual hold (field S3) remains active even after a power failure.

Page 32

Commissioning Liquisys M CLM223/253

32 Endress+Hauser

7 Commissioning

7.1 Function check

WARNING

Incorrect connection, incorrect supply voltage

Safety risks for staff and device malfunctions

‣

Check that all connections have been established correctly in accordance with the wiring diagram.

‣

Ensure that the supply voltage matches the voltage indicated on the nameplate.

7.2 Switching on

Familiarize yourself with the operation of the transmitter before it is first switched on. In particular please read the "Basic safety instructions" and "Operation options" sections. After power-up, the device performs a self-test and then goes to the measuring mode.

Now calibrate the sensor in accordance with the instructions in the "Calibration" section.

During initial commissioning, the sensor must be calibrated so that the measuring system can return precise measurement data.

Then perform the first configuration in accordance with the instructions in the "Quick setup" section. The values set by the user are kept even in the event of a power failure.

The following function groups are available in the transmitter (the groups that are only available in the Plus Package are marked accordingly in the functional description):

Setup mode

• SETUP 1 (A)

• SETUP 2 (B)

• CURRENT INPUT (Z)

• CURRENT OUTPUT (O)

• ALARM (F)

• CHECK (P)

• RELAY (R)

• TEMPERATURE COMPENSATION (T)

• CONCENTRATION MEASUREMENT (K)

• SERVICE (S)

• E+H SERVICE (E)

• INTERFACE (I)

Calibration mode

CALIBRATION (C)

A detailed explanation of the function groups available in the transmitter can be found in the "Device configuration" section.

s F3

Err.delay

Function display: The displayed code indicates the function position in the function group.

Additional information

A0025560-EN

 20 Information for the user on the display

Page 33

Liquisys M CLM223/253 Commissioning

Endress+Hauser 33

C C1 C111

C121

C131

C132 C133

A0027502

 21 Function code

To make it easier for you to select and find function groups and functions, a code for the corresponding field is displayed for each function →  20 The structure of this code is illustrated in →  21. The function groups are indicated as letters in the first column (see the names of the function groups). The functions of the individual groups are displayed incrementally by row and by column.

Factory settings

The first time the device is switched on, the factory setting is set for all the functions. The table below provides an overview of the most important settings.

All other factory settings can be found in the description of the individual function groups in the "System configuration" section (the factory setting is highlighted in bold).

Function Factory setting

Type of measurement Conductive measurement of conductivity,

Temperature measurement in °C

Type of temperature compensation Linear with reference temperature 25 °C (77 °F)

Temperature compensation Automatic (ATC on)

Limit value for controller 1 9999 mS/cm

Limit value for controller 2 9999 mS/cm

Hold Active during configuration and calibration

Measuring range 0 μS/cm to 2000 mS/cm (no measuring ranges to be

configured). The setting is flowing and depends on the sensors connected.

Current outputs 1 and 2* 4 to 20 mA

Current output 1: measured value for 4 mA signal current

0 μS/cm

Current output 1: measured value for 20 mA signal current

2000 mS/cm

Current output 2: temperature value for 4 mA signal current*

-35.0 °C (-31 °F)

Current output 2: temperature value for 20 mA signal current*

250.0 °C (482 °F)

* with appropriate version

Page 34

Commissioning Liquisys M CLM223/253

34 Endress+Hauser

7.3 Quick Setup

After power-up, you must make some settings to configure the most important functions of the transmitter which are required for correct measurement. The following section gives an example of this.

User entry Range of adjustment

(factory settings in bold)

Display

1. Press the ENTER key

2. Enter the code 22 to open access to the menus. Press the ENTER key.

3. Press the MINUS key until you get to the "Service" function group.

SERVICE

A0008408-EN

4. Press ENTER to be able to make your settings.

5. Select your language in S1, e.g. "ENG" for English. Press ENTER to confirm your entry.

ENG = English

GER = German FRA = French ITA = Italian NEL = Dutch ESP = Spanish

Language

ENG

A0008409-EN

6. Press the PLUS and MINUS key simultaneously to exit the "Service" function group.

7. Press the MINUS key until you get to the "Setup 1" function group.

SETUP 1

A0007824-EN

8. Press ENTER to be able to make your settings for "Setup 1".

9. In A1, select the desired mode of operation, e.g. "cond" = conductive. Press ENTER to confirm your entry.

cond = conductive

ind = inductive MOhm = resistance Conc = concentration

Oper.Mode

cond

A0009002-EN

10. In A2, press ENTER to accept the factory setting. (Only if A1 = conc, otherwise continue with Step 12)

ppm

mg/l TDS = total dissolved solids None

Conc.Unit

A0009003-EN

11. In A3, press ENTER to accept the standard setting.

XX.xx

X.xxx XXX.x XXXX

Format

XX.xx

A0009004-EN

12. In A4, press ENTER to accept the standard setting.

auto, μS/cm, mS/cm, S/cm, μS/m, mS/m, S/ m

Unit

auto

A0009005-EN

Page 35

Liquisys M CLM223/253 Commissioning

Endress+Hauser 35

User entry Range of adjustment

(factory settings in bold)

Display

13. In A5, enter the exact cell constant of the sensor. The cell constant is provided on the sensor quality certificate.

cond: 1.000 cm

-1

ind: 1.98 cm

-1

MOhm: 0.01 cm

-1

0.0025 to 99.99 cm

-1

1/cm

Cellconst

1.000

A0009006-EN

14. In A6, enter the cable resistance (only applies to conductive sensors).

0 Ω

0 to 99.99 Ω

A60

Cable-Res

A0009007-EN

15. In A7, enter the measured value damping. Measured value damping causes the measured value to be averaged over the specified number of individual measured values (if A7 = 1, no damping takes place). Press ENTER to confirm your entry. The display returns to the initial display of the "Setup 1" function group.

1 to 60

Damping

A0001960-EN

16. Press the MINUS key until you get to the "Setup 2" function group. Press ENTER to make your settings for "Setup 2".

SETUP 2

A0007830-EN

17. In B1, select the temperature sensor. Press ENTER to confirm your entry.

Pt100

Pt1k = Pt 1000 NTC30 Fixed

ProcTemp.

Pt100

A0009010-EN

18. In B2, select the appropriate type of temperature compensation for your process, e.g. "lin" = linear. Press ENTER to confirm your entry. Detailed information is provided in the "Setup 2" section.

None

Lin = linear

NaCl = table salt (IEC

746) Pure = ultrapure water NaCl PureH = ultrapure water HCl Tab = table

TempComp.

lin

A0009011-EN

19. In B3, enter the temperature coefficient α. Press ENTER to confirm your entry.

2.1 %/K

0.0 to 20.0 %/K

%/K

Alpha val

2.10

A0009012-EN

20. The current temperature is displayed in B5. If necessary, adjust the temperature sensor to an external measurement. Press ENTER to confirm your entry.

Actual value displayed and entered

-35.0 to 250.0 °C

¡C

RealTemp.

0.0

A0009014-EN

Page 36

Commissioning Liquisys M CLM223/253

36 Endress+Hauser

User entry Range of adjustment

(factory settings in bold)

Display

21. The difference between the measured and entered temperature is displayed. Press the ENTER key. The display returns to the initial display of the "Setup 2" function group.

0.0 °C

-5.0 to 5.0 °C

¡C

TempOffs.

0.0

A0009015-EN

22. Press the MINUS key to get to the "Current output" function group. Press ENTER to make your settings for the current outputs.

OUTPUT

A0025026-EN

23. In O1, select your current output, e.g. "Out 1" = output 1. Press ENTER to confirm your entry.

Out 1

Out 2

Sel.Out

Out1

A0025027-EN

24. In O3, select the linear characteristic. Press ENTER to confirm your entry.

Lin = linear (1)

Lin = linear (1) Tab = table

Sel.Type

lin

A0025029-EN

25. In O311, select the current range for your current output, e.g. 4 to 20 mA. Press ENTER to confirm your entry.

4 to 20mA

0 to 20 mA

O311

Sel.Range

4-20

A0025030-EN

26. In O312, specify the conductivity at which the minimum current value is applied at the transmitter output, e.g. 0 μS/cm. Press ENTER to confirm your entry.

Cond/ind: 0.00 μS/cm MOhm: 0.00 kΩ·cm Conc: 0.00 % Temp: 0.00 °C

O312

mg/l

0/4 mA

0.00

A0025031-EN

27. In O313, specify the conductivity at which the maximum current value is applied at the transmitter output, e.g. 2000 mS/cm. Press ENTER to confirm your entry. The display returns to the initial display of the "Current output" function group.

Cond/ind: 2000 mS/cm MOhm: 500 kΩ·cm Conc: 99.99 % Temp: 150 °C

O313

mg/l

20 mA

10.00

A0025032-EN

28. Press PLUS and MINUS simultaneously to switch to the measurement mode.

You must perform an air set before installing the inductive sensor. See the "Calibration" section for more information.

Page 37

Liquisys M CLM223/253 Commissioning

Endress+Hauser 37

7.4 Device configuration

7.4.1 Setup 1 (conductivity)

In the SETUP 1 function group, you can change the settings for the measuring mode and the sensor.

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

SETUP 1 function group

SETUP 1

A0007824-EN

Configuration of basic functions

A1 Select the

operating mode auswählen

cond = conductive

ind = inductive MOhm = resistance

conc= concentration

Oper.Mode

cond

A0009002-EN

Display varies depending on the device:

• Cond/resistance/conc

• Ind/conc



When the operating mode is changed, all user settings are automatically reset.

A2 Select the

concentration unit to be displayed (only for Plus Package)

ppm mg/l TDS = total dissolved solids None

Conc.Unit

A0009003-EN

A2 is only active if A1 = conc

A3 Select the display

format for the concentration unit (only for Plus Package)

XX.xx

X.xxx XXX.x XXXX

Format

XX.xx

A0009004-EN

A3 is only active if A1 = conc

A4 Select the unit to

be displayed

auto, μS/cm, mS/cm, S/cm, μS/ m, mS/m, S/m, kΩ·cm, MΩ·cm, kΩ·m

Unit

auto

A0009005-EN

If "auto" is selected, the highest possible resolution is automatically selected. A4 is not active if A1 = conc

A5 Enter the cell

constant for the connected sensor

cond:1.000 cm

-1

ind:1.98 cm

-1

MOhm:0.01 cm

-1

0.0025 to 99.99 cm

-1

1/cm

Cellconst

1.000

A0009006-EN

The exact cell constant is provided on the sensor quality certificate.

Page 38

Commissioning Liquisys M CLM223/253

38 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

A6 Enter the cable

resistance

0 Ω

0 to 99.99 Ω

A60

Cable-Res

A0009007-EN

Only for conductive sensors. The standardized line resistance must be multiplied by the actual cable length. CYK71: 0.165 Ω/m

A7 Enter the value

for measured value damping

1 to 60

Damping

A0009008-EN

Measured value damping causes averaging over the specified number of individual measured values. This is used, for example, to stabilize the display if the measurement is unstable. There is no damping if “1” is entered.

Page 39

Liquisys M CLM223/253 Commissioning

Endress+Hauser 39

7.4.2 Setup 2 (temperature)

Temperature coefficient α indicates the change in the conductivity per degree of temperature change:

k(T) k(T )

(1+

(T - T ))

A0009163

Where

κ(T) = conductivity at process temperature T

κ(T0) = conductivity at reference temperature T

The temperature coefficient depends both on the chemical composition of the solution and the temperature itself.

To determine the level of dependency, four different types of compensation can be selected in the transmitter:

• Linear temperature compensation

• NaCl compensation

• NaCl ultrapure water compensation (neutral compensation)

• HCl ultrapure water compensation (acid compensation)

• Temperature compensation with table

Linear temperature compensation

The change between two temperature points is taken to be constant, i.e. α = const. The α value can be edited for linear compensation. The reference temperature can be edited in the B7 field. The default setting is 25 °C.

A0008945

 22 Linear temperature compensation

* Uncompensated conductivity

NaCl compensationIn the case of NaCl compensation (as per IEC 60746), a fixed non-linear curve specifying the relationship between the temperature coefficient and temperature is saved in the device. This curve applies to low concentrations of up to approx. 5 % NaCl.

144

2.1

2.3

2.5

2.7

T [°C]

a [%/K]

A0008939

 23 NaCl compensation

Page 40

Commissioning Liquisys M CLM223/253

40 Endress+Hauser

Ultrapure water compensation (for conductive sensors)

For pure and ultrapure water, algorithms are saved in the transmitter that consider the self-dissociation of ultra pure water and its strong temperature dependency. They are used for conductivity levels of approx. 100 μS/cm.

Two types of compensation are available:

• NaCl ultrapure water compensation: this is optimized for pH-neutral contamination.

• HCl ultrapure water compensation: this is optimized for measuring the acid conductivity downstream of a cation exchanger. It is also suitable for ammonia (NH3) and caustic soda (NaOH).

• The ultrapure water compensation types always refer to a reference temperature of 25 °C (77 °F).

• The lowest conductivity displayed is the theoretical limit value of ultrapure water at 25 °C (77 °F) of 0.055 μS/cm.

Temperature compensation with table

For devices with the Plus Package, it is possible to enter a table with temperature coefficients α as a function of the temperature. The following conductivity data of the medium under measurement are required to use the alpha table function for temperature compensation:

Value pairs comprising the temperature T and conductivity κ with:

• κ(T0) for the reference temperature T

• κ(T) for the temperatures that occur in the process

T T

k( )

T1T

A0008944

 24 Determination of the temperature coefficient

A Required data B Calculated α values

Use the following formula to calculate the α values for the temperatures that are relevant in your process:

a =

100%

k(T )

k k(T) - (T )

T - T

; T T¹

A0009162

Enter the α-T value pairs obtained in this way in the T4 and T5 fields of the ALPHA TABLE function group.

Use this function group to change the settings for temperature measurement.

Page 41

Liquisys M CLM223/253 Commissioning

Endress+Hauser 41

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

SETUP 2 function group

SETUP 2

A0007830-EN

Settings for temperature measurement

B1 Select the

temperature sensor

Pt100

Pt1k = Pt 1000 NTC30 Fixed

ProcTemp.

Pt100

A0009010-EN

"fixed": Manual temperature compensation (MTC), no temperature measurement. Instead a fixed temperature value is defined in B4.

B2 Select the type of

temperature compensation

None

Lin = linear

NaCl = table salt (IEC 746) Pure = ultrapure water NaCl PureH = ultrapure water HCl

Tab = Table

TempComp.

lin

A0009011-EN

This option does not appear for concentration measurement. "Pure" and "PureH" are only displayed for conductive devices.

B3 Enter temperature

coefficient α

2.10 %/K

0.00 to 20.00 %/K

%/K

Alpha val

2.10

A0009012-EN

Only if B2 = lin. With other settings in B2, field B3 does not have any effect.

B4 Enter the process

temperature

25.0 °C

-35.0 to 250.0 °C

¡C

ProcTemp.

25.0

A0009013-EN

Only if B1 = fixed. The value entered can only be in °C.

B5 Display the

temperature and adjust the temperature sensor

Actual value displayed and entered

-35.0 to 250.0 °C

¡C

RealTemp.

0.0

A0009014-EN

With the value entered here, the temperature sensor can be adjusted to an external measurement. Affects B6. Omitted if B1 = fixed.

B6 Enter the

temperature differential (offset)

Current offset

-5.0 to 5.0 °C

¡C

TempOffs.

0.0

A0009015-EN

The offset is the difference between the actual value entered and the measured temperature. Omitted if B1 = fixed.

B7 Enter reference

temperature

25.0 °C

-5.0 to 100 °C

ref temp.

25.0

A0009016-EN

Page 42

Commissioning Liquisys M CLM223/253

42 Endress+Hauser

7.4.3 Current input

For the "Current input" function group, you require a relay card with a current input which is not available in the basic device version. With this function group, you can monitor process parameters and use them for feedforward control. For this purpose, you must connect the current output of an external measured variable (e.g. flowmeter) to the 4 to 20mA input of the transmitter. The following assignment applies:

Flow in main stream Current signal in mA Current input signal in %

Flowmeter start of measuring range 4 0

Flowmeter end of measuring range 20 100

Flow monitoring in the main stream

This arrangement is particularly practical if the sample flow through a flow assembly in an open outlet is independent of the flow in the main stream.

This permits signaling of an alarm condition in the main stream (flow too low or has completely stopped) and triggers dosing switch-off even if the medium flow is maintained due to the method of installation.

Z2 Z3

A0008923

 25 Alarm signaling and dosing switch-off by the main stream

A Flow in main stream F Flow restoration

B Relay contacts of PID controller Z2 Delay for controller switch-off, see field Z2

C Alarm relay Z3 Delay for controller switch-on, see field Z3

D Flow below switch-off limit Z 4 or flow failure 0 Off

E Flow alarm 1 On

Feedforward control to PID controller

You can optimize control on control systems with very short response times by measuring the medium flow rate in addition to the oxygen content. Then apply this flow rate value (4 to 20 mA) as feedforward control to the PID controller.

Feedforward control is a multiplying function as illustrated in the figure below (example with factory setting):

Page 43

Liquisys M CLM223/253 Commissioning

Endress+Hauser 43

0 20 40 60 80 100Z7

1.5

0.5

A0008942

 26 Multiplying feedforward control

Y Gain K

infl

X Current input signal in [%]

Page 44

Commissioning Liquisys M CLM223/253

44 Endress+Hauser

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

CURRENT INPUT function group

CUR.INPUT

A0024903-EN

Current input settings

Z1 Select flow

monitoring of main stream (with controller switchoff)

Off

Cont.stop

Off

A0024904-EN

Flow monitoring may only be switched on if the flowmeter is connected in the main stream. If Z1 = off, fields Z2 to Z5 are not available.

Z2 Enter the delay for

controller switchoff through current input

0 s

0 to 2000 s

Off Delay

A0024905-EN

Brief flow shortfalls can be suppressed by this delay and do not result in controller switchoff.

Z3 Enter the delay for

controller switchon through current input

0 s

0 to 2000 s

On Delay

A0024934-EN

In the case of a controller, a delay until the reception of a representative measured value is recommended after a long period without flow.

Z4 Enter the switch-off

limit value for the current input

50 %

0 to 100 %

A.Thresh

A0024935-EN

0 to 100% corresponds to 4 to 20 mA at the current input. Observe measured value assignment to the current output of the flowmeter.

Z5 Enter the switch-off

direction for the current input

Low

High

Stop Dir

Low

A0024939-EN

The controller is switched off if the value entered in Z4 is undershot or overshot.

Z6 Select feedforward

control to PID controller

Off

Lin = linear Basic

PID influ

Off

A0024940-EN

If Z6 = off, the field Z7 is not available. Z6 = basic: disturbance variable only affects the basic load (alternatively dosing in proportion to quantity, if usual PID controller not possible, e.g. defective sensor).

Z7 Enter value for

feedforward control at which gain = 1 applies

50 %

0 to 100 %

Kinflu=1

A0024941-EN

When the value is set, the controller actuating variable is the same size when feedforward control is switched on as when feedforward control is switched off.

Page 45

Liquisys M CLM223/253 Commissioning

Endress+Hauser 45

7.4.4 Current outputs

Use the "Current output" function group to configure the individual outputs. You can enter either a linear characteristic (O3 (1)) or a user-defined current output characteristic in conjunction with the Plus Package (O3 (3)). Exception: if you have chosen a "continuous controller" for current output 2, you cannot enter a user-defined current output characteristic for this current output.

In addition, you can also simulate a current output value (O3 (2)) to check the current outputs.

If a second current output is present, you can output the controller actuating variable via the current output in accordance with field R237/O2.

1500

1000

2000

500

0 4 8 12 16 20

I [mA]

D I [mA]

D Signal

[mS/cm]c

A0008943

 27 User-defined current output characteristic (example)

The current output characteristic must increase or decrease very monotonically.

The distance per mA between two table value pairs must be greater than:

• Conductivity: 0.5 % of measuring range

• Temperature: 0.25 °C

The values for the sample characteristic →  27 are entered in the following table. The distance per mA is calculated from Δ signal / Δ mA.

Current output 1 Current output 2

Value pair [mS/cm]

[%] [°C]

Current [mA]

Distance per mA

[mS/cm] [%] [°C]

Current [mA]

Distance per mA

1 500 4

2 1000 16 41.66

3 2000 20 250

Page 46

Commissioning Liquisys M CLM223/253

46 Endress+Hauser

First enter the desired current output configuration into the following blank table with a pencil. Calculate the resulting signal distance per mA to observe the necessary minimum slope. Then enter the values in the device.

Current output 1 Current output 2

Value pair [mS/cm]

[%] [°C]

Current [mA]

Distance per mA

[mS/cm] [%] [°C]

Current [mA]

Distance per mA

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

CURRENT OUTPUT function group

OUTPUT

A0025026-EN

Configuration of the current output (does not apply for PROFIBUS).

O1 Select current

output

Out 1

Out 2

Sel.Out

Out1

A0025027-EN

A characteristic can be selected for every output.

O2 Select measured

variable for 2nd current output

°C

mS/cm, MΩ, %

Contr

Parameter

¡C

A0025028-EN

R237=curr (current output 2) can only be selected if O2=Contr (controller) is selected (relay card required).

O3 (1) Enter the

characteristic type

Lin = linear (1)

Sim = simulation (2)

Tab = table (3)

Sel.Type

lin

A0025029-EN

The characteristic can have a positive or negative slope for the measured value output. In the case of actuating variable output (O2 = Contr), an increasing current corresponds to an increasing actuating variable.

Page 47

Liquisys M CLM223/253 Commissioning

Endress+Hauser 47

Coding Field Range of

adjustment (factory settings in bold)

Display Info

O311 Select current

range

4 to 20mA

0 to 20 mA

O311

Sel.Range

4-20

A0025030-EN

O312 0/4 mA value:

Enter the associated measured value

Cond/ind: 0.00

μS/cm

MOhm:

0.00kΩ*cm

Conc: 0.00 % Temp: 0.00 °C

µS/cm

O312

0/4 mA

0.00

A0025034-EN

Here you can enter the measured value at which the min. current value (0/4 mA) is applied at the transmitter output (not for controller). (Turndown see Technical data.)

O313 20 mA value:

Enter the associated measured value

Cond/ind: 2000

μS/cm MOhm: 500 kΩ*cm

Conc: 99.99 % Temp: 150 °C

mS/cm

O313

20 mA

2000

A0025035-EN

Here you can enter the measured value at which the max. current value (20 mA) is applied at the transmitter output (not for controller). (Turndown see Technical data.)

O3 (2) Simulate current

output

Lin = linear (1)

Sim = simulation (2)

Tab = table (3)

Sel.Type

sim

A0025039-EN

Simulation is not ended until O3(1) or O3(3) is selected. For further characteristics, see O3 (1), O3 (3).

O321 Enter simulation

value

Current value

0.00 to 22.00 mA

O321

Simulat.

10.20

A0025040-EN

Entering a current value results in this value being directly output at the current output.

O3 (3) Enter current

output table

Lin = linear (1) Sim = simulation (2)

Tab = table (3)

Sel.Type

table

A0025041-EN

Only for Plus Package Values can also be subsequently added or modified. The values entered are automatically sorted by increasing current value. For further characteristics, see O3 (1), O3 (2).

O331 Select table

option

Read

Edit

O331

Sel.Table

read

A0025042-EN

O332 Enter number of

table value pairs11 to 10

O332

No.Elem.

A0025043-EN

Enter the number of pairs of x and y values (measured value and current value) here.

Page 48

Commissioning Liquisys M CLM223/253

48 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

O333 Select table value

pair

1 to no. elem. Assign

O333

Sel.Elem.

A0025044-EN

The system runs through the O333 to O335 function chain as often as indicated in O332. "Assign" appears as the last step. The display goes to O336 after confirmation.

O334 Enter x value Cond/ind: 0.00

μS/cm

MOhm:

0.00kΩ*cm

Conc: 0.00 % Temp: 0.00 °C

O334

µS/cm

Meas.val.

0.00

A0025045-EN

x value = measured value specified by user.

O335 Enter y value 0.00 mA

0.00 to 20.00 mA

O335

mA value

0.00

A0025048-EN

y value = user-defined current value pertaining to O334. Return to O333 until all values are entered.

O336 Message as to

whether table status is OK

Yes

O336

Status ok

yes

A0025049-EN

Back to O3. If status = no, correct the table (all settings made up until now remain intact) or go back to the measuring mode (table is deleted).

Page 49

Liquisys M CLM223/253 Commissioning

Endress+Hauser 49

7.4.5 Alarm

You can use the "Alarm" function group to define various alarms and configure output contacts.

Each individual error can be defined to be effective or not (at the contact or as an error current).

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

ALARM function group

ALARM

A0025141-EN

Alarm function settings.

F1 Select contact

type

Latch = latching contact

Momen = momentary contact

Cont.Type

Latch

A0025142-EN

The option selected only applies for the fault-signaling contact, not for the error current.

F2 Select the time

unit for the alarm delay

min

Time Unit

A0025143-EN

F3 Enter alarm

delay

0 s (min)

0 to 2000 s (min)

Err.Delay

A0025144-EN

Depending on the option selected in F2, the alarm delay can be entered in s or min.

F4 Select error

current

22 mA

2.4 mA

Err.Curr

22mA

A0025145-EN



If "0-20 mA" was selected in O311, "2.4 mA" may not be used.

F5 Select the error

number

1 to 255

Sel.error

A0025146-EN

Here you can select all the errors which should trigger an alarm. The errors are selected by the error numbers. Please refer to the table in the "System error messages" section for the meaning of the individual error numbers. The factory settings remain in effect for all errors that are not edited.

F6 Set alarm

contact to be effective for the selected error

Yes

Rel.Assg

yes

A0025147-EN

If “no” is selected, all the other alarm settings are deactivated (e.g. alarm delay). The settings themselves are maintained. This setting only applies to the error currently selected in F5.

Page 50

Commissioning Liquisys M CLM223/253

50 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

F7 Set error

current to be effective for the selected error

Yes

Curr.Assg

A0025148-EN

The option selected in F4 is effective or not effective in the event of an error. This setting only applies to the error currently selected in F5.

F8 Automatic

cleaning function start

Yes

CleanTrig

A0025149-EN

This field is not available for certain errors, see the "Troubleshooting and fault elimination" section.

F9 Select return to

menu or next error

Next = next error number ←R

Select

A0025150-EN

If ←R is selected, you return to F. If Next is selected, you go to F5.

7.4.6 Check

The CHECK function group is only available for devices with a Plus Package.

In the CHECK function group, you can select different monitoring functions for the measurement.

Polarization detection (field P1)

In the case of conductive sensors, the effects of polarization in the boundary layer between the sensor and medium restrict the measuring range. The transmitter can detect polarization effects by using a smart signal analysis process. Error message E071 is displayed.

Alarm threshold monitoring (fields P2 to P5)

You can use this function to monitor the measured value for permissible upper and lower limits and trigger an alarm (error messages E154, E155).

PCS alarm (process check system), (fields P6 to P9)

AC (alternation check; sensor activity monitoring): The function AC (field P6) is used to

check measuring signals for deviations. An alarm (E152) is triggered if the measuring signal remains constant within the space of one hour. The reason for such sensor behavior can be contamination, cable open circuit or similar.

CC (controller check): You can monitor the controller activity with the CC function . This function is primarily suited to batch operation and single-sided limit switches. A malfunction of the controller is detected and reported thanks to freely adjustable monitoring times (E156, E157).

Page 51

Liquisys M CLM223/253 Commissioning

Endress+Hauser 51

A0025196

 28 PCS alarm (live check)

A Constant measuring signal = alarm triggered after PCS alarm time has elapsed

Any PCS alarm pending is automatically deleted as soon as the sensor signal changes.

Page 52

Commissioning Liquisys M CLM223/253

52 Endress+Hauser

You can use the "Check" function group to monitor the measured value for permissible upper and lower limits and trigger an alarm.

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

CHECK function group

CHECK

A0009045-EN

Settings for sensor and process monitoring

P1 Switch

polarization detection on or off (only for conductive sensors)

Off

Pol.Detec

Off

A0009046-EN

Polarization only occurs with conductive sensors. Any polarization that may occur is detected but is not compensated for. (Error no.: E071)

P2 Select alarm

threshold monitoring

Off

Low High LoHi = low and high Lo! Hi! LoHi!

A.Tresh

Off

A0009048-EN

Alarm possible with or without controller switch-off. xxxx = without controller switch-off xxxx! = with controller switch-off (Error no.: E154, E155)

P3 Enter alarm delay 0 min (s)

0 to 2000 min (s)

Err.Delay

A0009049-EN

Depending on the option selected in F2, the alarm delay can be entered in s or min. This delay must first elapse before undershooting/ overshooting in accordance with fields P4/P5 results in an alarm.

P4 Enter lower alarm

threshold

0 µS/cm

0 to 9999 mS/cm

µS/cm

LowAlarm

0.00

A0009050-EN

P5 Enter upper alarm

threshold

9999 µS/cm

0 to 9999 mS/cm

mS/cm

HighAlarm

9999

A0009051-EN

P6 Select process

monitoring

Off

AC CC AC+CC AC! CC! AC+CC!

ProcMonit

Off

A0009052-EN

AC = sensor activity monitoring (E152) CC = controller monitoring (E156, E157) Alarm possible with or without simultaneous controller switch-off. xxxx = without controller switch-off xxxx! = with controller switch-off

Page 53

Liquisys M CLM223/253 Commissioning

Endress+Hauser 53

Coding Field Range of

adjustment (factory settings in bold)

Display Info

P7 Enter maximum

permissible duration for lower CC setpoint limit violation (field P9)

60 min

0 to 2000 min

min

Tmax Low

A0009053-EN

Only if P6=CC or AC CC.

P8 Enter maximum

permissible duration for upper CC setpoint limit violation (field P9)

120 min

0 to 2000 min

min

Tmax High

120

A0009054-EN

Only if P6=CC or AC CC.

P9 Enter CC set point

(for P7/P8)

1000 µS/cm

0 to 9999 mS/cm

µS/cm

Setpoint

1000

A0009055-EN

Set value is an absolute value. This function is primarily suited to batch operation and single-sided limit switches.

7.4.7 Relay configuration

For the "RELAY" function group, you require a relay card which is not available in the basic device version.

The following relay contacts can be selected and configured as desired (max. four contacts, depending on options installed):

• Limit contactor for conductivity measured value: R2 (1)

• Limit contactor for temperature: R2 (2)

• PID controller: R2 (3)

• Timer for cleaning function: R2 (4)

• Chemoclean function: R2 (5)

• USP/EP: R2 (6) and R2 (7) (for Plus Package, only conductive sensors)

Limit contactor for conductivity measured value and temperature

The transmitter has different ways of assigning a relay contact. Switch-on and switch-off points and pickup and dropout delays can be assigned to the limit contactor. In addition, you can configure an alarm threshold to output an error message and to start a cleaning function in conjunction with this.

These functions can be used both for the primary value and for temperature measurement.

Please refer to the switch states in →  29 for a clear illustration of the relay contact states.

• When the measured values increase (maximum function), the relay contact is closed as of t2 after the switch-on point (t1) has been exceeded and the pickup delay has elapsed (t2-t1). The alarm contact switches if the alarm threshold (t3) is reached and the alarm delay (t4-t3) has also elapsed (errors E067 to E070).

• When the measured values decrease, the alarm contact is reset when the value falls below the alarm threshold (t5) again, as is the relay contact (t7) after the dropout delay (t7-t6).

• If the pickup and dropout delays are set to 0 s, the switch-on and switch-off points are also switch points of the contacts.

The same settings can also be made for a minimum function in the same way as for the maximum function.

Page 54

Commissioning Liquisys M CLM223/253

54 Endress+Hauser

2 3

3 2

A0025215

 29 Illustration of the alarm and limit value functions

A Switch-on point > switch-off point: Max. function B Switch-on point < switch-off point: Min. function 1 Alarm threshold 2 Switch-on point 3 Switch-off value 4 Contact ON 5 Alarm ON 6 Alarm OFF 7 Contact OFF

Page 55

Liquisys M CLM223/253 Commissioning

Endress+Hauser 55

P(ID) controller

You can define various controller functions for the transmitter. On the basis of the PID controller, P, PI, PD and PID controllers can be implemented. For an optimum control system, use the controller that best suits your application.

• P controller Used for simple linear control purposes with small system deviations. Where major changes are to be controlled, overshooting may occur. In addition, a lasting control deviation must be expected.

• PI controller Is used for control systems where overshooting is to be avoided and no lasting control deviation should occur.

• PD controller Is used for processes that require quick changes and where peaks must be corrected.

• PID controller Is used for processes where a P, PI or PD controller does not control sufficiently.

Configuration options of the P(ID) controller

The following configuration options are available for a PID controller:

• Change control gain Kp (P influence)

• Set integral action time Tn (I influence)

• Set derivative action time Tv (D influence)

Basic load dosing (basic)

You can set a constant dosage amount (field R2311) with basic load dosing (field R231).

PID control plus basic load dosing

If you have selected this function (PID + Basic) in field R231, the PID-controlled dosage amount does not drop below the basic load value entered in field R2311.

100 %

A0025221

 30 Control characteristic of PID controller with basic load dosing

A PID plus basic load B Basic load C PID

Commissioning

If you do not yet have any experience for setting the control parameters, set the values that yield the greatest possible stability in the control circuit. Proceed as follows to optimize the control circuit further:

• Increase the control gain Kp until the controlled variable just starts to overshoot.

• Reduce Kp slightly again and then reduce the integral action time Tn so that the shortest possible correction time without overshooting is achieved.

• To reduce the response time of the controller, also set the derivative action time Tv.

Control and fine optimization of the set parameters with a recorder

Page 56

Commissioning Liquisys M CLM223/253

56 Endress+Hauser

A0025218

 31 Optimization of settings Tn and K

A Actual value B Time 1 Tn too small

2 Tn too large 3 Kp too large 4 Kp too small 5 Optimum setting

Actuating signal outputs via contacts (R237 to R2310)

Each control contact outputs a cyclical signal whose intensity corresponds to the controller's actuating value. A distinction is made according to the type of signal cycle:

• Pulse length modulation The bigger the calculated manipulated variable is, the longer the contact affected remains picked up. The period T can be set to be between 0.5 and 99 s (field R238). Outputs with pulse length modulation are used to activate solenoid valves.

• Pulse frequency modulation The bigger the calculated manipulated variable is, the higher the switching frequency of the contact affected. The maximum switching frequency 1/T can be set to be between 60 and 180 min-1 (field R239). The on-time ton is constant. It depends on the set maximum frequency and is approx. 0.5 s for 60 min-1 and approx. 170 ms for 180 min-1. 170 ms. Outputs with pulse frequency modulation are used to activate directly controlled solenoid dosing pumps.

Page 57

Liquisys M CLM223/253 Commissioning

Endress+Hauser 57

t [s]

A0025219

 32 Signal of a pulse-length modulated controller contact (left) and of a pulse frequency-modulated controller

contact (right)

Contact: 1 = on, 0 = off T Period Time (s): t1 = ton t2 = t

off

T1 T2 Impulse period length ( 1/T1 and 1/T2)

Constant controller

The controller can also control the second analog current output (if provided). This is configured in fields R237 and O2.

Control characteristic for direct and inverse control action

You can choose between two control characteristics in the R236 field:

• Direct control action = maximum function

• Inverse control action = minimum function

– X

100 %

A0025222

 33 Control characteristic of a proportional controller with direct and inverse control action

A Direct = maximum function B Inverse = minimum function XW Control deviation Y Current output signal = controller actuating variable

Timer for cleaning function

This function includes a simple cleaning option. You can set the time interval after which cleaning should start. Therefore you can only select a constant interval sequence.

Other cleaning functions are available for selection in conjunction with the Chemoclean function (device version with four contacts required, see the "Chemoclean function" section).

The timer and Chemoclean do not work independently of one another. While one of the two functions is active, the other cannot be started.

Page 58

Commissioning Liquisys M CLM223/253

58 Endress+Hauser

A0025223

 34 Connection between cleaning time, pause time and hold dwell period

A Wiper and/or spray cleaning system B Hold function 0 Inactive 1 active t0 Normal operation t1 cleaning start t2-t1Cleaning time t3-t2Clean hold dwell period (0 to 999 s) t4-t3Pause time between two cleaning intervals (1 to 7200 min)

Chemoclean function

Just like the timer function, Chemoclean can also be used to start a cleaning cycle. However, Chemoclean also gives you the added option of defining various cleaning and rinsing intervals and of dosing cleaning agent.

Therefore, it is possible to clean irregularly with different repeat cycles and to separately set the cleaning times with post rinse times.

Please note the following:

• To use the Chemoclean function the transmitter has to be equipped with a designated relay board (see product structure or chapter "accessories").

• The timer and Chemoclean are mutually dependent. While one of the two functions is active, the other cannot be started.

• For the Chemoclean function, the relays 3 (water) and 4 (cleaner) are used.

• If the cleaning is prematurely aborted, a post rinse time always follows.

• If the setting is "Economy", cleaning only takes place with water.

Page 59

Liquisys M CLM223/253 Commissioning

Endress+Hauser 59

A0025216

 35 Sequence of a cleaning cycle

A Hold function B Water valve is triggered C Cleaning valve is triggered 0 Contact off 1 Contact on t0 Normal operation t1 cleaning start t2-t1Pre-rinse time t3-t2Cleaning time t4-t3Post rinse time t5-t4Hold dwell period

Limit values for pharmaceutical water according to United States Pharmacopoeia (USP) and European Pharmacopoeia (EP) (only for conductive sensors)

In the case of conductive sensors, the transmitter has functions for monitoring "Water for Injection" (WFI), "Highly Purified Water" (HPW) and "Purified Water" (PW) according to the United States Pharmacopoeia (USP) Part 645 and European Pharmacopoeia (EP) standards.

USP function: The temperature-dependent limit values in the following table apply for "Water for Injection" (WFI) according to USP and EP and for "Highly Purified Water" (HPW) according to EP. The table is programmed into the transmitter.

Temperature [°C] Conductivity [µS/cm] Temperature [°C] Conductivity [µS/cm]

0 0.6 55 2.1

5 0.8 60 2.2

10 0.9 65 2.4

15 1.0 70 2.5

20 1.1 75 2.7

25 1.3 80 2.7

30 1.4 85 2.7

35 1.5 90 2.7

40 1.7 95 2.9

45 1.8 100 3.1

50 1.9

Page 60

Commissioning Liquisys M CLM223/253

60 Endress+Hauser

The measurement is performed in the following steps:

• The transmitter determines the uncompensated conductivity and the water temperature.

• The transmitter rounds the temperature off to the nearest 5 °C and compares the measured conductivity with the associated value in the table.

• If the measured value is larger than the value in the table, an alarm is triggered (E151).

EP-PW function: The following table lists the temperature-dependent limit values for "Purified Water" (PW) in accordance with EP; this table is also programmed into the transmitter.

Temperature [°C] Conductivity [µS/cm] Temperature [°C] Conductivity [µS/cm]

0 2.4 60 8.1

10 3.6 70 9.1

20 4.3 75 9.7

25 5.1 80 9.7

30 5.4 90 9.7

40 6.5 100 10.2

50 7.1

The measurement is performed in the following steps:

• The transmitter determines the uncompensated conductivity and the water temperature.

• If the temperature is between two table entries, the limit value for the conductivity is determined by interpolation of the two neighboring points.

• If the measured value is larger than the limit value, an alarm is triggered (E151).

Early warning: A USP early warning is also available. This is activated at a configurable switch-on point (e.g. 80 % of USP/EP limit value). This means that the user is alerted to be able to regenerate the plant in time. Der Voralarm wird in Feld R262 bzw. R272 eingestellt.

Please note the following:

• The device must be equipped with a relay card and the Plus Package to be able to use the USP and EP function.

• To output an alarm, enable the fault-signaling contact or the error current in field F5 F7 (error code E151 and E153).

• The switch-off point of the pre-alarm is 1 % below of the switch-on point (R262 / R272), related to the main limit value.

• The transmitter also uses the uncompensated values for the USP and EP function when it displays temperature-compensated values.

• The limit value of 100 °C (212 °F) is used for temperatures over 100 °C (212 °F).

Page 61

Liquisys M CLM223/253 Commissioning

Endress+Hauser 61

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

RELAY

RELAIS

A0009058-EN

Relay contact settings

R1 Select the contact

to be configured

Rel1

Rel2 Rel3 Rel4

Sel.Relay

Rel1

A0009059-EN

Rel3 (water) and Rel4 (cleaner) are only available with the relevant version of the transmitter. If Chemoclean is used as the cleaning method, Rel4 is not available.

R2 (1) Configure limit

contactor for conductivity, resistance or concentration measurement

LC PV = limit contactor conductivity (1)

LC °C = limit contactor T (2) PID controller (3) Timer (4)

Clean= Chemoclean (5) USP (6) EP PV(7)

Sel.Type

LC PV

A0009060-EN

PV = process value If Rel4 is selected in the R1 field, Clean = Chemoclean cannot be selected. By confirming with ENTER, another relay function already switched on is switched off and its settings are reset to the factory settings.

R211 Switch function

of R2 (1) off or on

Off

R211

Function

off

A0009067-EN

All the settings are retained.

R212 Enter the switch-

on point of the contact

Cond/ind: 9999

mS/cm MOhm: 200 MΩ·cm Conc: 9999 %

mS/cm

R212

On value

9999

A0009068-EN

Never set the switch-on point and the switch-off point to the same value! (Only the operating mode selected in A1 is displayed.)

R213 Enter the switch-

off point of the contact

Cond/ind: 9999

mS/cm MOhm: 200 MΩ·cm Conc: 9999 %

mS/cm R213

Off value

9999

A0009069-EN

Entering a switch-off point selects either a Max contact (switch-off point < switch-on point) or a Min contact (switch-off point > switch-on point), thereby implementing a hysteresis that is constantly required (see "Illustration of the alarm and limit functions" figure).

R214 Enter pickup

delay

0 s

0 to 2000 s

s R214

On Delay

A0009070-EN

Page 62

Commissioning Liquisys M CLM223/253

62 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R215 Enter dropout

delay

0 s

0 to 2000 s

s R215

Off Delay

A0009071-EN

R216 Enter alarm

threshold

Cond/ind: 9999

mS/cm MOhm: 200 MΩ·cm Conc: 9999 %

mS/cm

R216

A.Thresh

9999

A0009072-EN

If the alarm threshold is undershot/overshot, this triggers an alarm with the error message (E067 to E070) and an error current at the transmitter (note alarm delay in field F3). If defined as a Min contact, the alarm threshold must be < switch-off point.

R217 Display status for

limit contactor

MAX

MIN

R217

LC State

MAX

A0009073-EN

Display only

R2 (2) Configure limit

contactor for temperature measurement

LC PV = limit contactor conductivity (1)

LC °C = limit contactor T (2)

PID controller (3) Timer (4)

Clean= Chemoclean (5) USP (6) EP PV(7)

Sel.Type

LC ¡C

A0009061-EN

By confirming with ENTER, another relay function already switched on is switched off and its settings are reset to the factory settings.

R221 Switch function

of R2 (2) off or on

Off

R221

Function

off

A0009074-EN

R222 Enter switch-on

temperature

250.0 °C

-35.0 to 250.0 °C

R222

On value

250.0

A0009075-EN

Never set the switch-on point and the switch-off point to the same value!

R223 Enter switch-off

temperature

250.0 °C

-35.0 to 250.0 °C

R223

Off value

250.0

A0009076-EN

Page 63

Liquisys M CLM223/253 Commissioning

Endress+Hauser 63

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R224 Enter pickup

delay

0 s

0 to 2000 s

R224

On Delay

A0009077-EN

R225 Enter dropout

delay

0 s

0 to 2000 s

R225

Off Delay

A0009078-EN

R226 Enter alarm

threshold (as absolute value)

250.0 °C

-35.0 to 250 °C

R226

A.Thresh

250.0

A0009079-EN

R227 Display status for

limit contactor

MAX

MIN

R227

LC State

MAX

A0009080-EN

Display only

R2 (3) Configure P(ID)

controller

LC PV = limit contactor conductivity (1) LC °C = limit contactor T (2)

PID controller (3)

Timer (4)

Clean= Chemoclean (5) USP (6) EP PV(7)

Sel.Type

PID

A0009062-EN

By confirming with ENTER, another relay function already switched on is switched off and its settings are reset to the factory settings.

R231 Switch function

of R2 (3) off or on

Off

On Basic PID+B

R231

Function

off

A0009081-EN

On = PID controller Basic = basic load dosing PID+B = PID controller + basic load dosing

R232 Enter set point Cond/ind: 0.00

μS/cm MOhm: 0.00 kΩ·cm Conc: 0.00 %

µS/cm R232

Setpoint

0.00

A0009084-EN

The set point is the value to be maintained by the control system. Using this control process, this value is restored when an upwards or downwards deviation occurs.

Page 64

Commissioning Liquisys M CLM223/253

64 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R233 Enter control

gain K

1.00

0.01 to 20.00

R233

1.00

A0009085-EN

See the "P(ID) controller" section.

R234 Enter integral

action time T

(0.0 = no Icomponent)

0.0 min

0.0 to 999.9 min

R234

min

Time Tn

0.0

A0009086-EN

See the "P(ID) controller" section. With every hold, the Icomponent is set to zero. Although the hold can be deactivated in field S2, this does not apply for Chemoclean and timer!

R235 Enter derivative

action time T

(0.0 = no Dcomponent)

0.0 min

0.0 to 999.9 min

R235

min

Time Tv

0.0

A0009087-EN

See the "P(ID) controller" section.

R236 Select controller

characteristic

Dir = direct

Inv = inverse

R236

Direction

dir

A0009088-EN

The setting is required depending on the control deviation (upward or downward deviation, see the "P(ID) controller" section).

R237 Select pulse

length or pulse frequency

Len = pulse length Freq = pulse frequency

Curr = current output 2

R237

Oper.Mode

len

A0009089-EN

Pulse length e.g. for solenoid valve, pulse frequency e.g. for solenoid dosing pump, see the "Actuating signal outputs" section. Curr = current output 2 can only be selected if O2 = Contr.

R238 Enter pulse

interval

10.0 s

0.5 to 999.9 s

R238

PulsePer.

10.0

A0009090-EN

This field only appears if pulse length is selected in R237. If pulse frequency is selected, R238 is skipped and entries continue with R239.

R239 Enter maximum

pulse frequency of the adjuster

120 min

-1

60 to 180 min

-1

R239

1/min

Max.PFreq

120

A0009091-EN

This field only appears if pulse frequency is selected in R237. If pulse length is selected, R239 is skipped and entries continue with R2310.

R2310 Enter minimum

switch-on time t

0.3 s

0.1 to 5.0 s

R2310

Min.PTime

0.3

A0009082-EN

This field only appears if pulse length is selected in R237.

Page 65

Liquisys M CLM223/253 Commissioning

Endress+Hauser 65

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R2311 Enter basic load 0 %

0 to 40 %

R2311

BasicLoad

A0009083-EN

When you select the basic load, you enter the desired dosing quantity.

100% basic load would correspond to:

• Constantly on if R237 = len

• Fmax if R237 = freq (field R239)

• 20 mA if R237 = curr

R2 (4) Configure

cleaning function (timer)

LC PV = limit contactor conductivity (1) LC °C = limit contactor T (2) PID controller (3)

Timer (4)

Clean= Chemoclean (5) USP (6) EP PV(7)

Sel.Type

Timer

A0009063-EN

Only one cleaning agent (generally water) is used for the cleaning. By confirming with ENTER, another relay function already switched on is switched off and its settings are reset to the factory settings.

R241 Switch function

of R2 (4) off or on

Off

R241

Function

off

A0009092-EN

R242 Enter rinsing/

cleaning time

30 s

0 to 999 s

R242

RinseTime

A0009093-EN

Settings for hold and relay are active for this time.

R243 Enter pause time 360 min

1 to 7200 min

R243

min

PauseTime

360

A0009094-EN

The pause time is the time between two cleaning cycles (see the "Timer for cleaning function" section).

R244 Enter minimum

pause time

120 min

1 to R243

R244

min

Min.Pause

120

A0009095-EN

The minimum pause time prevents constant cleaning if a cleaning trigger is pending.

R2 (5) Configure

cleaning with Chemoclean (for version with four contacts, Chemoclean option and contacts 3 and 4 assigned)

LC PV = limit contactor conductivity (1) LC °C = limit contactor T (2) PID controller (3) Timer (4)

Clean= Chemoclean (5)

USP (6) EP PV(7)

Sel.Type

Clean

A0009064-EN

See the "Chemoclean function" section. By confirming with ENTER, another relay function already switched on is switched off and its settings are reset to the factory settings.

Page 66

Commissioning Liquisys M CLM223/253

66 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R251 Switch function

of R2 (5) off or on

Off

R251

Function

off

A0009096-EN

R252 Select type of

start pulse

Int = internal (timecontrolled)

Ext = external (digital input 2) I+ext = internal + external I+stp = internal, suppressed by external

R252

CleanTrig

int

A0009097-EN

The cycle for the "int" function is started when the pause time ends (R257). No real time clock is available. External suppression is required for irregular time intervals (e.g. weekends).

R253 Enter pre-rinse

time

20 s

0 to 999 s

R253

PreRinse

A0009098-EN

Rinsing is performed with water.

R254 Enter cleaning

time

10 s

0 to 999 s

R254

CleanTime

A0009099-EN

Cleaning is performed with cleaning agent and water.

R255 Enter post rinse

time

20 s

0 to 999 s

R255

PostRinse

A0009100-EN

Rinsing is performed with water.

R256 Enter number of

repeat cycles

0 to 5

R256

Rep.Rate

A0009101-EN

R253 to R255 is repeated.

R257 Enter pause time 360 min

1 to 7200 min

R257

min

PauseTime

360

A0009102-EN

The pause time is the time between two cleaning cycles (see the "Chemoclean function" section).

R258 Enter minimum

pause time

120 min

1 to R257

R258

min

Min.Pause

120

A0009103-EN

The minimum pause time prevents constant cleaning if an external cleaning start is pending.

Page 67

Liquisys M CLM223/253 Commissioning

Endress+Hauser 67

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R259 Enter number of

cleaning cycles without cleaning agent (economy function)

0 to 9

R259

EconomyCl

A0009104-EN

After cleaning with cleaner, up to 9 cleaning sessions can be carried out with water only until the next cleaning session with cleaner takes place.

R2 (6) Configure USP

contact (only for Plus Package with relay card)

LC PV = limit contactor conductivity (1) LC °C = limit contactor T (2) PID controller (3) Timer (4) Clean= Chemoclean (5)

USP (6)

EP PV(7)

Sel.Type

USP

A0009065-EN

The USP contact can be configured as an early warning alarm, i.e. it alerts the user before the actual limit value is reached. Error no. E151 appears in the event of an alarm. WFI according to USP; HPW according to EP

R261 Switch function

of R2 (6) off or on

Off

R261

Function

Off

A0009105-EN

R262 Early warning

threshold: enter switch-on point

80.0 %

0.0 to 100.0 %

R262

On Value

80.0

A0009106-EN

The early warning triggers the contact. When the alarm value is reached (100%), the alarm relay is also triggered. Example: Given 15 °C and 1.0 μS/cm, a USP early warning alarm is triggered at 0.8 μS/cm when the setting is 80%.

R264 Early warning

threshold: enter pickup delay

0 s

0 to 2000 s

R264

On Delay

A0009107-EN

R265 Early warning

threshold: enter dropout delay

0 s

0 to 2000 s

R265

Off Delay

A0009108-EN

R2 (7) Configure EP PV

contact (only for Plus Package with relay card)

LC PV = limit contactor conductivity (1) LC °C = limit contactor T (2) PID controller (3) Timer (4) Clean= Chemoclean (5) USP (6)

EP PV(7)

Sel.Type

EP PW

A0009066-EN

The EP PV contact can be configured as an early warning alarm, i.e. it alerts the user before the actual limit value is reached. Error no. E151 appears in the event of an alarm. PV according to EP

Page 68

Commissioning Liquisys M CLM223/253

68 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

R271 Switch function

of R2 (7) off or on

Off

R271

Function

Off

A0009109-EN

R272 Early warning

threshold: enter switch-on point

80.0 %

0.0 to 100.0 %

R272

On Value

80.0

A0009110-EN

The early warning triggers the contact. When the alarm value is reached (100%), the alarm relay is also triggered. Example: Given 15 °C and 1.0 μS/cm, an EP PV early warning alarm is triggered at 0.8 μS/cm when the setting is 80%.

R274 Early warning

threshold: enter pickup delay

0 s

0 to 2000 s

R274

On Delay

A0009111-EN

R275 Early warning

threshold: enter dropout delay

0 s

0 to 2000 s

R275

Off Delay

A0009112-EN

Page 69

Liquisys M CLM223/253 Commissioning

Endress+Hauser 69

7.4.8 Temperature compensation with table

The "ALPHA TABLE" function group is not available in the basic device version. You require the Plus Package to access this function group. With this function group, you can perform temperature compensation using a table (field B2).

Enter the α-T value pairs (see SETUP 2) in the T4 and T5 fields.

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

ALPHA TABLE function group

ALPHA TAB

A0009123-EN

Settings for temperature compensation.

T1 Select table

option

Read

Edit

Sel.Table

read

A0009125-EN

T2 Enter number of

table value pairs11 to 10

No. Elem.

A0009126-EN

In the α-table, you can enter a maximum of 10 value pairs. These pairs are saved under numbers 1 to 10 and can be changed individually or consecutively.

T3 Select table

value pair

1 to number of table value pairs Assign

Sel.Elem.

A0009127-EN

The system automatically runs through the T3 to T5 function chain as often as corresponds to the value indicated in T2. "Assign" appears as the last value. The display goes to T6 once the process is finished.

T4 Enter

temperature value

0.0 °C

-35.0 to 250.0 °C

Temp.val.

0.0

A0009128-EN

The temperature values must be at least 1 K apart. Factory setting for the temperature value in the table value pairs:

0.0 °C; 10.0 °C; 20.0 °C; 30.0 °C ...

T5 Enter

temperature coefficient α

2.10 %/K

0.00 to 20.00 %/K

%/K

alpha val

2.10

A0009129-EN

T6 Message as to

whether table status is OK

Yes

Status ok

yes

A0009130-EN

Display only If status = "no", you must set correct values in the table (all settings made up until now remain intact) or go back to the measuring mode (then the table is not valid).

Page 70

Commissioning Liquisys M CLM223/253

70 Endress+Hauser

7.4.9 Concentration Measurement

The CONCENTRATION function group is only available for devices with a Plus Package.

The transmitter can convert from conductivity values to concentration values. For this purpose, the operating mode is first set to concentration measurement (see field A1).

Afterwards, in the measuring device you must specify the basic data on the basis of which the concentration is to be calculated. You require the conductivity characteristic curves of the medium for this.

You can either refer to your data sheets for these characteristic curves or determine the characteristic curves yourself.

1. Create samples of the medium in the concentrations that occur in the process.

2. Then measure the uncompensated conductivity of these samples at temperatures that also occur in the process.

• For variable process temperatures:

If variable process temperatures are to be taken into consideration, you must measure the conductivity for at least two temperatures (ideally the minimum and maximum process temperature) for the samples created. The temperature values of the various samples must be identical in each case. The temperatures must be at least 0.5 °C apart. At least two samples of different concentrations, taken at two different temperatures in each case, are required as the transmitter needs at least four points in the table (this must include the minimum and maximum concentration values).

• For constant process temperatures:

Measure the differently concentrated samples at this temperature. At least two samples are required.

At the end you should have measuring data which resemble those shown in the following figures.

C CC

min

max

A0008926

 36 Example of measured data for variable temperatures

κ Conductivity C Concentration T Temperature 1 Measuring point 2 Measuring range

Page 71

Liquisys M CLM223/253 Commissioning

Endress+Hauser 71

min

max

min

max

A0008925

 37 Example of measured data for constant temperatures

κ Conductivity C Concentration T Constant temperature 1 Measuring range



The characteristic curves received from the measuring points must increase or decrease very monotonically in the range of the process conditions, i.e. neither maximum points, nor minimum points, nor ranges with a constant behavior can occur. The curve profiles opposite are therefore not permitted.

A0008927

 38 Impermissible curve profiles

κ Conductivity C Concentration

Value entry

Enter the three characteristic values for each measured sample in the fields K6 to K8 (value triplets of uncompensated conductivity, temperature and concentration).

• Variable process temperature: Enter at least the four value triplets needed.

• Constant process temperature: Enter at least the two value triplets needed.

Please note the following: If the measured values of the process are outside the range of your sample values, this considerably reduces the level of accuracy and the error message E078 or E079 will be displayed. Therefore, take the limit values of your process into consideration when determining the characteristic curves. Wird bei aufsteigender If you enter an additional value triplet of 0 μS/cm and 0% for every temperature used when the characteristic curve is increasing, you can work from the start of the measuring range with sufficient accuracy and without an error message. Enter the values in order of increasing concentration (see the following example).

mS/cm % °C

240 96 60

380 96 90

220 97 60

340 97 90

120 99 60

200 99 90

Page 72

Commissioning Liquisys M CLM223/253

72 Endress+Hauser

As the temperature is already processed in the concentration tables, the settings for temperature compensation in the Setup 2 menu (fields B2 and B3) are ineffectual for concentration measurement.

Functions marked in italics are not supported by the basic device version.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

CONCENTRATION function group

CONCENTRA

A0009113-EN

Four different concentration fields can be entered in this function group.

K1 Select the active

concentration curve on which the calculation of the display value is based

1 to 4

act.curve

A0009114-EN

The curves are independent of one another. Four different curves can be defined.

K2 Select the curve to be

edited

1 to 4

editCurve

A0009115-EN

If a curve is being edited, another curve should be used to calculate the current display values. Example: If curve 2 is being edited, either curve 1, curve 3 or curve 4 should be active (see K1).

K3 Select table option Read

Edit

Table

read

A0009116-EN

This option is valid for all concentration curves.

K4 Enter number of

reference triplets

1 to 10

No. Elem.

A0009117-EN

Each triplet consists of three numeric values.

K5 Select triplet 1

1 to number of triplets in K4 Assign

Sel.Elem.

A0009118-EN

Any triplet can be edited. "Assign" takes the user to K9

K6 Enter uncompensated

conductivity value

0.0 mS/cm

0.0 to 9999 mS/cm

mS/cm

conduct.

0.0

A0009119-EN

The system automatically runs through the K5 to K6 function chain as often as corresponds to the value indicated in K4. The display then goes to K9.

Page 73

Liquisys M CLM223/253 Commissioning

Endress+Hauser 73

Coding Field Range of

adjustment (factory settings in bold)

Display Info

K7 Enter concentration

value for K6

0.00 %

0.00 to 99.99 %

concentr.

0.00

A0009120-EN

Engineering unit as selected in A2. Format as selected in A3.

K8 Enter temperature value

for K6

0.0 °C

-35.0 to 250.0 °C

Temp.val.

0.0

A0009121-EN

K9 Message as to whether

table status is OK

Yes

Status ok

yes

A0009122-EN

Read only. If "No", then set correct values in the table (all settings made up until now remain intact) or go back to the measuring mode (then the table is not valid).

7.4.10 Service

Coding Field Range of

adjustment (factory settings in bold)

Display Info

SERVICE function group

SERVICE

A0008408-EN

Service function settings.

S1 Select language ENG = English

GER = German FRA = French ITA = Italian NL = Dutch ESP = Spanish

Language

ENG

A0008409-EN

The option selected only applies for the faultsignaling contact, not for the error current.

S2 Configure a hold S+C = hold during

configuration and calibration

Cal = hold during calibration Setup = hold during configuration None = no hold

Auto HOLD

S+C

A0008413-EN

S = setup C = calibration

S3 Manual hold Off

Man. HOLD

off

A0008414-EN

The setting is retained even in the event of a power failure.

Page 74

Commissioning Liquisys M CLM223/253

74 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

S4 Enter hold dwell

period

10 s

0 to 999 s

Cont.Time

A0008415-EN

S5 Enter SW

upgrade release code (Plus Package)

0000

0000 to 9999

0000

PlusCode

A0008416-EN

The code can be found on the nameplate. If an incorrect code is entered, you are taken back to the measurement menu. The number is edited with the PLUS or MINUS key and confirmed with the ENTER key. "1" is displayed if the code is active.

S6 Enter SW

upgrade release code for Chemoclean

0000

0000 to 9999

CleanCode

0000

A0008417-EN

S7 Order number is

displayed

PR0005

order

A0008418-EN

If the device is upgraded, the order code is changed automatically.

S8 Serial number is

displayed

12345678

SerNo

A0008420-EN

S9 Reset the device

to the basic settings

Sens = sensor data Facty = factory settings

S.Default

A0008421-EN

Sens = last calibration is deleted and is reset to factory setting. Facty = all data (apart from A1 and S1) are deleted and reset to the factory setting!

S10 Perform device

test

Displ = display test

S10

Test

A0008410-EN

Page 75

Liquisys M CLM223/253 Commissioning

Endress+Hauser 75

7.4.11 E+H Service

Coding Field Range of adjustment

(factory settings in bold)

Display Info

E+H SERVICE function group

E+H SERV

A0007857-EN

Information on the device version

E1 Select module Contr = controller

(central module) (1)

Trans = transmitter (2) Main = power unit (3) Rel = relay module (4) Sens = sensor (5)

Select

Contr

A0007858-EN

E111 E121 E131 E141 E151

Software version is displayed

E111

SW-Vers.

xx.xx

A0007859-EN

If E1 = contr: device software If E1 = trans, main, rel: module firmware If E1 = sens: sensor software

E112 E122 E132 E142 E152

Hardware version is displayed

E112

HW-Vers.

xx.xx

A0007861-EN

Info display

E113 E123 E133 E143 E153

Serial number is displayed

E113

12345678

SerNo

A0007860-EN

Info display

E114 E124 E134 E144 E154

Module ID is displayed

E114

Modul-ID

LSG

A0007862-EN

Info display

Page 76

Commissioning Liquisys M CLM223/253

76 Endress+Hauser

7.4.12 Interfaces

Coding Field Range of

adjustment (factory settings in bold)

Display Info

INTERFACE function group

INTERFACE

A0007863-EN

Communication settings (only for HART or PROFIBUS device version).

I1 Enter bus

address

Address HART: 0 to 15 or PROFIBUS: 0 to

126

Address

126126

A0007864-EN

Each address may only be assigned once in a network. If a device address ≠ 0 is selected for a HART device, the current output is automatically set to 4 mA and the device prepares for multi-drop operation.

I2 The tag name is

displayed

@@@@@@@@

Tag

A0007865-EN

7.4.13 Communication

For devices with a communication interface, please also refer to the separate Operating Instructions BA00208C/07/EN (HART®) or BA00209C/07/DE (PROFIBUS®).

Page 77

Liquisys M CLM223/253 Commissioning

Endress+Hauser 77

7.5 Calibration

Use the CAL key to access the calibration function group.

Use this function group to calibrate and adjust the transmitter. The calibration can be performed in two different ways:

• By measuring in a calibration solution of known conductivity.

• By entering the exact cell constant of the conductivity sensor.

Please note the following:

• During initial commissioning of inductive sensors, an air set is absolutely essential for residual coupling compensation (from field C111) so that the measuring system can return precise measurement data.

• If the calibration procedure is aborted by pressing the PLUS and MINUS keys at the same time (return to C114, C126 or C136) or if the calibration is faulty, then the previous calibration data are reinstated. A calibration error is indicated by “ERR” and the sensor symbol flashes on the display. Repeat calibration!

• For each calibration, the device automatically switches to hold (factory setting).

• On completion of the calibration, the device returns to the measurement mode. The "hold" symbol appears on the display during the hold dwell period (field S4).

• Only items C121 to C126 are relevant for conductive sensors.

Coding Field Range of

adjustment (factory settings in bold)

Display Info

CALIBRATION function group:

CALIBRAT

A0009141-EN

Airs and InstF do not apply for conductive measurement.

C1(1) Calibration of

inductive sensors with annular opening

Airs = air set (1)

Cellc = cell constant (2) InstF = installation factor (3)

Calibrat

AirS

A0009142-EN

When commissioning inductive sensors, an air set is mandatory. The sensor air set must be performed in air and in a dry state.

Take the inductive sensor out of the liquid and dry it fully.

A0025597

C111 Residual coupling

start calibration (air set)

Current measured value

C111

µS/cm

AirSet

0.0

A0009145-EN

Press CAL to start the calibration.

Page 78

Commissioning Liquisys M CLM223/253

78 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

C112 The residual

coupling is displayed (air set)

-80.0 to 80.0 μS/cm

C112

µS/cm

AirSetVal

5.3

A0009146-EN

Residual coupling of measuring system (sensor and transmitter).

C113 Calibration status

is displayed

o.k.

E xxx

C113

Status

o.k.

A0009147-EN

If the calibration status is not o.k., a reason for the error is provided on the second line of the display.

C114 Store calibration

result?

Yes

No New

C114

Store

yes

A0009148-EN

If C113 = E xxx, then only No or New. If New, return to C. If Yes/No, return to "Measurement".

C1(2) Cell constant

calibration

Airs = air set (1)

Cellc = cell constant (2)

InstF = installation factor (3)

Calibrat

Cellc

A0009143-EN

The sensor should be immersed in such a way that there is sufficient distance to the vessel wall (the installation factor has no influence if a > 15 mm).

Immerse the sensor in the calibration solution.



The following section describes calibration with the temperature-compensated conductivity value of the reference solution. If calibration is to be performed with the uncompensated conductivity value, you must set the temperature coefficient α to zero.

A0025598

C121 Enter calibration

temperature (MTC)

25 °C

-35.0 to 250.0 °C

Only available if B1 = fixed.

C122 Enter the α value

of the calibration solution

2.10 %/K

0.00 to 20.00 %/K

%/K C122

alpha val

2.10

A0009150-EN

The value is given in the Technical Information for all E+H calibration solutions. You can also use the printed-on table to calculate the value. Set α to 0 for calibration with uncompensated values.

C123 Enter the correct

conductivity value of the calibration solution

Current measured value

0.0 μS/cm to 9999 mS/cm

C123

mS/cm

Real. val

10.30

A0009151-EN

A value close to the subsequent operating range should be selected.

Page 79

Liquisys M CLM223/253 Commissioning

Endress+Hauser 79

Coding Field Range of

adjustment (factory settings in bold)

Display Info

C124 The calculated cell

constant is displayed

0.0025 to 99.99 cm

-1

C124

1/cm

Cellconst

1.000

A0009152-EN

The calculated cell constant is displayed and accepted in A5.

C125 Calibration status

is displayed

o.k.

E xxx

C125

Status

o.k.

A0009153-EN

If the calibration status is not o.k., a reason for the error is provided on the second line of the display.

C126 Store calibration

result?

Yes

No New

C126

Store

yes

A0009154-EN

If C125 = E xxx, then only No or New. If New, return to C. If Yes/No, return to "Measurement".

C1(3) Calibration with

sensor adjustment for inductive sensors (only for Plus Package)

Airs = air set (1) Cellc = cell constant (2)

InstF = installation factor (3)

Calibrat

InstF

A0009144-EN

Sensor adjustment with compensation for wall effects. In the case of inductive sensors, the measured value is influenced by the distance between the sensor and the pipe wall and by the material of the pipe (conductive or insulating). The installation factor indicates these dependencies. See the Technical Information of the sensor used for more information

The inductive sensor is mounted at the place of installation.

A0025599

C131 Enter the process

temperature (MTC)

25 °C

-35.0 to 250.0 °C

C131

MTC temp.

25.0

A0009155-EN

Only available if B1 = fixed.

C132 Enter the α value of

the calibration solution

2.10 %/K

0.00 to 20.00 %/K

C132

%/K

alpha val

2.10

A0009156-EN

The value is given in the TI for all E+H calibration solutions. You can also use the printed-on table to calculate the value. Set α to 0 for calibration with uncompensated values.

C133 Enter the correct

conductivity value of the calibration solution

Current measured value

0.0 μS/cm to 9999 mS/cm

C133

mS/cm

Real val.

10.30

A0009157-EN

A value close to the subsequent operating range should be selected.

Page 80

Commissioning Liquisys M CLM223/253

80 Endress+Hauser

Coding Field Range of

adjustment (factory settings in bold)

Display Info

C134 Calculated

installation factor is displayed

0.10 to 5.00

C134

InstFact

A0009158-EN

The installation factor indicates the dependency between the measured value and the distance between the sensor and pipe wall. See the Technical Information of the sensor used for more information.

C135 Calibration status is

displayed

o.k.

E xxx

C135

Status

o.k.

A0009159-EN

If the calibration status is not o.k., a reason for the error is provided on the second line of the display.

C136 Store calibration

result?

Yes

No New

C136

Store

yes

A0009160-EN

If C135 = E xxx, then only No or New. If New, return to C. If Yes/No, return to "Measurement".

Page 81

Liquisys M CLM223/253 Diagnostics and troubleshooting

Endress+Hauser 81

8 Diagnostics and troubleshooting

8.1 Trouble shooting instructions

The transmitter continuously monitors its functions itself. If an error occurs which the device recognizes, this is indicated on the display. The error number is shown below the display of the main measured value. If more than one error occurs, you can call these up with the MINUS key.

Refer to the "System error messages" table for the possible error numbers and remedial measures.

Should a malfunction occur without any transmitter error message, please refer to the "Process-specific errors" or the "Device-specific errors" tables to localize and rectify the error. These tables provide you with additional information on any spare parts required.

8.2 System error messages

You can display and select the error messages with the MINUS key.

Error No.

Display Tests/remedial action Alarm

contact

Error current

Autom. cleaning start

PROFIBU S Status

Facty Facty Facty PV

User User User Temp

E001 EEPROM memory

error

• Switch off device and switch it on again.

• Load software compatible with hardware

• Load measurementparameter specific device software.

• If the error persists, send in the device for repair to your local sales center or replace the device.

Yes No X 0C

X 0C

E002 Device not calibrated,

calibration data invalid, no user data or user data invalid (EEPROM error), device software not suitable for hardware (controller)

Yes No X 0C

X 0C

E003 Download error Invalid configuration.

Repeat download.

Yes No No 0C

E004 Device software

version not compatible with module hardware version

Load software compatible with hardware Load measurementparameter specific device software.

Yes No No 0C

E007 Transmitter

malfunction, device software not compatible with transmitter version

Yes No X 0C

X 0C

E008 Sensor or sensor

connection faulty

Check sensor and sensor connection

Yes No Yes 0C

E010 Temperature sensor

defective, not connected or shortcircuited (measurement continues with 25 °C)

Check temperature sensor and connections; check the measuring device and measuring cable with a temperature simulator if necessary. Check that correct option is selected in field B1

Yes No No 80

Page 82

Diagnostics and troubleshooting Liquisys M CLM223/253

82 Endress+Hauser

Error No.

Display Tests/remedial action Alarm

contact

Error current

Autom. cleaning start

PROFIBU S Status

Facty Facty Facty PV

User User User Temp

E025 Limit value for air set

offset exceeded

Perform air set again (in air) or replace sensor. Dry sensor.

No No No 80

E036 Calibration range of

sensor exceeded

Clean sensor and recalibrate; if necessary, check sensor and connections.

No No No 80

E037 Below calibration

range of sensor

No No No 80

E045 Calibration aborted Repeat the calibration No No X 80

X 80

E049 Calibration range of

installation factor exceeded

Check pipe diameter, clean sensor and perform calibration again.

No No X 80

X 80

E050 Below calibration

range of installation factor

No No X 80

X 80

E055 Below main parameter

measuring range

Check measurement, control and connections

Yes No No 44

E057 Main parameter

measuring range exceeded

Yes No No 44

E059 Below temperature

measuring range

Yes No No 80

E061 Temperature

measuring range exceeded

Yes No No 80

E063 Below current output

range 1

Check measured value and current assignment

Yes No No 80

E064 Current output range 1

exceeded

Yes No No 80

E065 Below current output

range 2

Yes No No 80

E066 Current output range 2

exceeded

Yes No No 80

E067 Set point exceeded

limit contactor 1

Check configuration Yes No No 80

E068 Set point exceeded

limit contactor 2

Yes No No 80

E069 Set point exceeded

limit contactor 3

Yes No No 80

E070 Set point exceeded

limit contactor 4

Yes No No 80

E071 Incorrect

measurement / polarization

Clean sensor; check table; select suitable sensor.

Yes No No 44

Page 83

Liquisys M CLM223/253 Diagnostics and troubleshooting

Endress+Hauser 83

Error No.

Display Tests/remedial action Alarm

contact

Error current

Autom. cleaning start

PROFIBU S Status

Facty Facty Facty PV

User User User Temp

E077 Temperature outside α

value table range

Clean sensor; check tables Yes No No 44

E078 Temperature outside

concentration table

Yes No No 44

E079 Conductivity outside

concentration table

Yes No No 44

E080 Current output 1 range

too small

Increase range in "Current outputs" menu.

Yes No X 80

X 80

E081 Current output 2 range

too small

Yes No X 80

X 80

E085 Incorrect setting for

error current

If the current range "0 to 20 mA" was selected in field O311, the error current may not be set to "2.4 mA".

Yes No No 80

E100 Current simulation

active

Yes No X 80

X 80

E101 Service function active Switch off service function

or switch device off and then on again.

No No X 80

X 80

E102 Manual mode active No No X 80

X 80

E106 Download active Wait for download to

finish.

No No X 80

X 80

E116 Download error Repeat download. Yes No X 0C

X 0C

E150 Distance between

temp. values in α value table too small or not monotonously increasing

Enter correct α value table (temperatures must be entered at intervals of at least 1 K)

No No No 44

E151 USP-EP error Yes No No 44

E152 PCS alarm Check sensor and

connection.

Yes No No 44

E153 USP-EP temperature

error

Yes No No 80

E154 Below lower alarm

threshold for period exceeding alarm delay

Perform manual comparison measurement if necessary. Service sensor and recalibrate.

Yes No No X

E155 Above upper alarm

threshold for period exceeding alarm delay

Yes No No X

E156 Actual value

undershoots alarm threshold for longer

Yes No No X

Page 84

Diagnostics and troubleshooting Liquisys M CLM223/253

84 Endress+Hauser

Error No.

Display Tests/remedial action Alarm

contact

Error current

Autom. cleaning start

PROFIBU S Status

Facty Facty Facty PV

User User User Temp

than the set permissible maximum period

E157 Actual value exceeds

alarm threshold for longer than the set permissible maximum period

Yes No No X

E162 Dosage stop Check settings in the

CURRENT INPUT and CHECK function groups.

Yes No No X

E171 Flow in main stream

too low or zero

Restore flow. Yes No No X

E172 Switch-off limit for

current input exceeded

Check process variables at sending measuring device. Change range assignment if necessary.

Yes No No X

E173 Current input < 4 mA Yes No No X

E174 Current input > 20 mA Yes No No X

1) PV = process variable, primary value

8.3 Process-specific errors

Use the following table to localize and rectify any errors occurring.

Error Possible cause Tests/remedial action Tools, spare parts

Incorrect reading compared to comparison measurement

Device calibrated incorrectly

Calibrate the device according to Kap. the "Calibration" section

Calibration solution or cell certificate

Sensor fouled Clean sensor See the "Cleaning of

conductivity sensors" section

Incorrect temperature measurement

Check temperature measured value in measuring device and reference device

Temperature measuring device, precision thermometer

Temperature compensation incorrect

Check compensation method (none / ATC / MTC) and compensation type (linear/ substance/user table)

Please note: the transmitter has separate calibration and operating temperature coefficients

Reference device is calibrated incorrectly

Calibrate reference device or use verified device

Calibration solution, Operating Instructions of reference device

Incorrect ATC setting in reference device

Compensation method and compensation type must be identical on both devices.

Operating Instructions of reference device

Polarization errors Use suitable sensor:

• Use larger cell constant

• Use graphite instead of stainless steel (check resistance)

Measuring range tables e.g. in SI "Conductivity" or technical data of conductivity sensors

Page 85

Liquisys M CLM223/253 Diagnostics and troubleshooting

Endress+Hauser 85

Error Possible cause Tests/remedial action Tools, spare parts

Incorrect line resistance in field A6

Enter correct value CYK71: 165 Ω/km

Implausible measured values in general:

• Continuous measured value overflow

• Measured value constantly 000

• Measured value too low

• Measured value too high

• Measured value frozen

• Current output value not as expected

Short-circuit/moisture in sensor

Check sensor See the "Checking

inductive conductivity sensors" section.

Short-circuit in cable or socket

Check cable and socket See the "Connecting lines

and junction boxes" section.

Disconnection in sensor Check sensor See the "Checking

inductive conductivity sensors" section.

Disconnection in cable or socket

Check cable and socket See the "Connecting lines

and junction boxes" section.

Incorrect cell constant setting

Check cell constant Sensor nameplate or

certificate

Incorrect output assignment

Check assignment of measured value to current signal

Incorrect output function Check preset value (0-20 / 4 -20

mA) and curve shape (linear / table)

Air pockets in assembly Check assembly and installation

position

Grounding short at or in device

Measure in insulated device Plastic vessel, calibration

solutions

Transmitter module defective

Check with new module See the "Spare parts"

section

Device in impermissible operating condition (does not respond when key pressed)

Switch off device and switch it on again

EMC problem: if this persists, check the grounding, shields and line routing or have checked by E+H Service.

Incorrect conductivity measured value in the process

No/incorrect temperature compensation

ATC: select type of compensation; if linear, set suitable coefficients. MTC: set process temperature.

Incorrect temperature measurement

Check temperature measured value.

Reference device, thermometer

Bubbles in medium Suppress formation of bubbles by:

• Gas bubble trap

• Creating counterpressure (orifice plate)

• Measurement in bypass

Polarization effects (only with conductive sensors)

Use suitable sensor:

• Use larger cell constant

• Use graphite instead of stainless steel (check resistance)

Measuring range tables e.g. in SI "Conductivity" or technical data of conductivity sensors

Flow rate too high (can lead to bubble formation)

Reduce flow rate or select less turbulent mounting location.

Voltage potential in medium (only for conductive)

Ground medium close to sensor. Problem mainly occurs in

plastic lines and tanks

Sensor fouling or buildup on sensor

Clean the sensor (see the "Cleaning the conductivity sensors" section).

For heavily contaminated media: Use spray cleaning

Incorrect line resistance in field A6

Enter correct value CYK71: 165 Ω/km

Page 86

Diagnostics and troubleshooting Liquisys M CLM223/253

86 Endress+Hauser

Error Possible cause Tests/remedial action Tools, spare parts

Incorrect temperature value

Incorrect sensor connection

Check connections using wiring diagram. Three-wire connection always required.

Wiring diagram in "Electrical connection" section

Measuring cable defective

Check cable for interruptions/ short-circuit/shunt.

Ohmmeter

Incorrect sensor type Set type of temperature sensor at

the device (field B1).

Fluctuations in measured value

Interference on measuring cable

Connect cable shield as per wiring diagram

See the "Electrical connection" section

Interference on signal output cable

Check cable routing, possibly route cable separately

Route signal output and measuring input lines separately

Interference potential in medium

Eliminate source of interference or ground medium as close as possible to sensor.

Electromagnetic interference on signal lines with conductive sensors

Use shielded cables and ground the cable shield

Controller or timer cannot be activated

No relay module available

Install LSR1-2 or LSR1-4 module

Controller/limit contact does not work

Controller switched off Activate controller See fields R2xx

Controller in operating mode "Manual off"

Select "Auto" or "Manual on" mode Keyboard, REL key

Pickup delay setting too long

Switch off or shorten pickup delay time

See fields R2xx

"Hold" function active “Auto hold” for calibration,

“Hold” input activated; “Hold” active via keyboard

See fields S2 to S5

Controller/limit contact works continuously

Controller in operating mode "Manual on"

Select "Auto" or "Manual off" mode Keyboard, REL and AUTO

keys

Dropout delay setting too long

Shorten dropout delay time See fields R2xx

Control loop interruption Check measured value, current

output value, actuators, chemical supply

No conductivity current output signal

Cable disconnected or short-circuited

Disconnect cable and measure directly at device

mA meter 0–20 mA

Output defective See the "Device-specific errors"

section

Fixed conductivity current output signal

Current simulation active Switch off simulation. See field O3

Impermissible operating state of processor system

Disconnect line voltage for approx. 10 seconds

Possibly EMC problem: if problem persists, check grounding and wire routing.

Incorrect current output signal

Incorrect current assignment

Check current assignment: 0–20 mA or 4–20 mA?

Field O311

Total load in the current loop too high (> 500 Ω)

Disconnect output and measure directly at device

mA meter for 0–20 mA DC

EMC (interference coupling)

Disconnect both output cables and measure directly at device

Use shielded cables, ground shields at both ends, where necessary route cable in another cable duct

Page 87

Liquisys M CLM223/253 Diagnostics and troubleshooting

Endress+Hauser 87

Error Possible cause Tests/remedial action Tools, spare parts

Current output table is not accepted

Value interval too small Select practical intervals

No temperature output signal

Device does not have a second current output

Check version using nameplate, if necessary replace the LSCH-x1 module

LSCH-x2 module, see the "Spare parts" section

Device with PROFIBUS-PAPA device has no current output!

Chemoclean function not available

No relay module (LSR1x) installed or only LSR1-2 available Additional function not enabled

Install LSR1-4 module. Chemoclean is enabled using the release code supplied by the manufacturer in the Chemoclean retrofit kit. To check the version, see the nameplate

LSR1-4 module, see the "Spare parts" section

Plus Package functions not available

Plus Package not enabled (enable by entering a code which depends on the serial number and which is supplied by E+H when a Plus Package is ordered)

• For Plus Package retrofit: code is supplied by E+H → enter this code.

• After replacing a defective LSCH/LSCP module: first enter device serial number manually (see nameplate), then enter the existing code number.

For a detailed description, see the "Replacement of central module" section.

No HART communication

No HART central module Verify using nameplate: HART = -

xxx5xx and -xxx6xx

Upgrade to LSCH-H1 / H2

No or incorrect DD (device description)

For further information, see BA00208C/07/EN, "HART field communication with Liquisys CxM223/253”

HART interface missing

Current output < 4 mA

Load too small (must be > 230 Ω)

HART receiver (e.g. FXA

191) not connected via load but via power supply

Incorrect device address (addr. = 0 for single operation, addr. > 0 for multidrop operation)

Line capacitance too high

Interference on line

Several devices set to same address

Assign addresses correctly No communication

possible if several devices set to the same address

No PROFIBUS communication

No PA/DP central module

Verify using the nameplate: PA =

-xxx3xx /DP = xxx4xx

Upgrade to LSCP module, see the "Spare parts" section

Incorrect device software version (without PROFIBUS)

For further information, see BA00209C/07/EN "PROFIBUS PA/DP - Field communication for Liquisys CxM223/253".

Information about PROFIBUS configuration is provided in Technical Information TI00260F, while detailed information about instrumentation and accessories is provided in Operating Instructions BA00198F

With Commuwin (CW) II: CW II version and device software version incompatible

No or incorrect DD/DLL

Incorrect baud rate setting for segment coupler in DPV-1 server

Page 88

Diagnostics and troubleshooting Liquisys M CLM223/253

88 Endress+Hauser

Error Possible cause Tests/remedial action Tools, spare parts

Bus user (master) has wrong address or address assigned twice

Bus user (slave) has wrong address

Bus line not terminated

Line problems (too long, cross-section too small, not shielded, shield not grounded, wires not twisted)

Bus voltage too low (Bus voltage typ. 24 V DC for non-Ex)

The voltage at the device's PA/DP connector must be at least 9 V

8.4 Device-specific errors

The following table helps you during the diagnosis and points to any spare parts required.

Depending on the degree of difficulty and the measuring equipment present, diagnosis is carried out by:

• Trained operator personnel

• The user's trained electrical technicians

• Company responsible for system installation/operation

• Endress+Hauser Service

Information on the exact spare part designations and on how to install these parts can be found in the "Spare parts" section.

Error Possible cause Tests/remedial action Execution, tools, spare

parts

Device cannot be operated, display value 9999

Operation locked Press CAL and MINUS keys

simultaneously.

See the "Key functions" section

Display dark, no light-emitting diode active

No line voltage Check whether line voltage is

present

Electrical technician / e.g. multimeter

Supply voltage wrong/too low

Compare actual line voltage and nameplate data

User (data for energy supply company or multimeter)

Connection faulty • Terminal not tightened

• Insulation jammed

• Wrong terminals used

Electrical technician

Device fuse defective Compare line voltage and the

nameplate data and replace fuse

Electrical technician/suitable fuse; see exploded drawing in the the "Spare parts" section

Power unit defective Replace power unit, note

version

Onsite diagnosis by Endress +Hauser Service, test module necessary

Central module defective Replace central module, note

version

Onsite diagnosis by Endress +Hauser Service, test module necessary

Field device: ribbon cable loose or defective

Check ribbon cable, replace if necessary

See the "Spare parts" section

Display dark, lightemitting diode active

Central module defective (module: LSCH/LSCP)

Replace central module, note version

Onsite diagnosis by Endress +Hauser Service, test module necessary

Page 89

Liquisys M CLM223/253 Diagnostics and troubleshooting

Endress+Hauser 89

Error Possible cause Tests/remedial action Execution, tools, spare

parts

Values appear on display but:

• Display does not change and / or

• Device cannot be operated

Device or module in device not correctly mounted

Panel-mounted device: reinstall insert. Field device: remount display module

Perform with the aid of the installation drawings in the the "Spare parts" section

Impermissible operating system condition

Disconnect line voltage for approx. 10 seconds

Possibly Possible EMC problem: if this persists, check the installation or have checked by Endress+Hauser Service

Device gets hot Voltage wrong/too high Compare line voltage and

nameplate data

User, electrical technician

Power unit defective Replace power unit Diagnosis only by Endress

+Hauser Service

Conductivity/MΩ measured value and/or temperature measured value incorrect

Transmitter module defective (module: MKIC), please first carry out tests and take measures as per the "Process-specific errors" section

Measuring input test:

• Connect a resistor instead of the conductivity sensor

• 100 Ω resistance at terminals 11/ 12 + 13 = display 0 °C

If the test is negative: replace module (note version). Perform with the aid of the exploded drawings in the "Spare parts" section.

Current output, incorrect current value

Incorrect adjustment Check with integrated current

simulation, connect mA meter directly to current output.

If simulation value incorrect: adjustment in factory or new LSCH module required. If simulation value correct: check current loop for load and shunts.

Load too large

Shunt / short to ground in current loop

Incorrect mode of operation

Check whether 0–20 mA or 4– 20 mA is selected.

No current output signal

Current output stage defective (only for LSCH module; LSCP has no current output)

Check with integrated current simulation, connect mA meter directly to current output

If test negative: Replace central module (note version)

Additional relays not working

Field device: ribbon cable loose or defective

Check ribbon cable seating, replace cable if required.

See the "Spare parts" section

Only 2 additional relays can be triggered

LSR1-2 relay module with 2 relays is installed

Upgrade to LSR1-4 with 4 relays.

User or Endress+Hauser Service

Additional functions (Plus Package) missing

No or incorrect release code used

If retrofitting: check whether the correct serial number was quoted when ordering the Plus Package.

Handled by Endress+Hauser Sales

Incorrect device serial number saved in LSCH/ LSCP module

Check whether serial number on the nameplate matches SNR in LSCH/ LSCP (field S 8).

The serial number of the device is definitive for the Plus Package.

Additional functions (Plus Package and/or Chemoclean) missing after LSCH/LSCP module replacement

Replacement modules LSCH or LSCP have the device serial number 0000 when they leave the factory. The Plus Package or Chemoclean are not enabled on leaving the factory.

In the case of LSCH/LSCP with SNR 0000, a device serial number can be entered once in fields E115 to E117. Then enter the release codes for the Plus Package and/or Chemoclean if necessary.

For a detailed description, see the "Replacement of central module" section.

No HART or PROFIBUS PA/DP interface function

Incorrect central module HART: LSCH-H1 or H2 module,

PROFIBUS-PA: LSCP-PA module, PROFIBUS-DP: LSCP-DP module, see field E112.

Replace central module; User or Endress+Hauser Service.

Page 90

Maintenance Liquisys M CLM223/253

90 Endress+Hauser

Error Possible cause Tests/remedial action Execution, tools, spare

parts

Wrong software SW version, see field E111.

Bus problem Remove some devices and

repeat the test.

Contact Endress+Hauser Service.

9 Maintenance

WARNING

Process pressure and temperature, contamination, electrical voltage

Risk of serious or fatal injury

‣

If the sensor has to be removed during maintenance work, avoid hazards posed by pressure, temperature and contamination.

‣

Make sure the device is de-energized before you open it.

‣

Power can be supplied to switching contacts from separate circuits. De-energize these circuits before working on the terminals.

Take all the necessary precautions in time to ensure the operational safety and reliability of the entire measuring point.

The maintenance of the measuring point comprises:

• Calibration

• Cleaning the controller, assembly and sensor

• Checking the cables and connections

When performing any work on the device, bear in mind any potential impact this may have on the process control system or on the process itself.

NOTICE

Electrostatic discharge (ESD)

Risk of damaging the electronic components

‣

Take personal protective measures to avoid ESD, such as discharging beforehand at PE or permanent grounding with a wrist strap.

‣

For your own safety, only use genuine spare parts. With genuine parts, the function, accuracy and reliability are also ensured after maintenance work.

9.1 Maintenance of the entire measuring point

9.1.1 Cleaning the transmitter

Clean the front of the housing using commercially available cleaning agents only.

The front of the housing is resistant to the following in accordance with DIN 42 115:

• Ethanol (for a short time)

• Diluted acids (max. 2% HCl)

• Diluted alkaline solutions (max. 3% NaOH)

• Soap-based household cleaning agents

When performing any work on the device, bear in mind any potential impact this may have on the process control system or on the process itself.

Page 91

Liquisys M CLM223/253 Maintenance

Endress+Hauser 91

NOTICE

Prohibited cleaning agents

Damage to the housing surface or housing seal

‣

Never use concentrated mineral acids or alkaline solutions for cleaning.

‣

Never use organic cleaners such as benzyl alcohol, methanol, methylene chloride, xylene or concentrated glycerol cleaner.

‣

Never use high-pressure steam for cleaning purposes.

9.1.2 Cleaning the conductivity sensors

CAUTION

Risk of injury from cleaning agents, damage to clothing and equipment

‣

Wear protective goggles and safety gloves.

‣

Clean away splashes on clothes and other objects.

‣

Pay particular attention to the information provided in the safety data sheets for the chemicals used.

Clean away fouling on the sensor as follows depending on the type of fouling:

• Oily and greasy films: Clean with grease remover, e.g. alcohol, acetone, possibly hot water and dishwashing detergent.

• Lime and metal hydroxide buildup: Dissolve buildup with diluted hydrochloric acid (3 %) and then rinse thoroughly with plenty of clear water.

• Sulfidic buildup (from flue gas desulfurization or sewage treatment plants): Use a mixture of hydrochloric acid (3 %) and thiocarbamide (commercially available) and then rinse thoroughly with plenty of clear water.

• Buildup containing proteins (e.g. food industry): Use a mixture of hydrochloric acid (0.5 %) and pepsin (commercially available) and then rinse thoroughly with plenty of clear water.

9.1.3 Simulation of conductive sensors for device testing

You can test the transmitter for conductive conductivity by replacing the measurement section and temperature sensor with resistors. The accuracy of the simulation will depend on the accuracy of the resistors.

Temperature

If a temperature offset is not set at the transmitter, the temperature values of the following table apply:

Pt 100 equivalent resistors

Temperature Resistance value

-20 °C (-4 °F) 92.13 Ω

-10 °C (14 °F) 96.07 Ω

0 °C (32 °F) 100.00 Ω

10 °C (50 °F) 103.90 Ω

20 °C (68 °F) 107.79 Ω

25 °C (77 °F) 109.73 Ω

50 °C (122 °F) 119.40 Ω

80 °C (176 °F) 130.89 Ω

100 °C (212 °F) 138.50 Ω

200 °C (392 °F) 175.84 Ω

Page 92

Maintenance Liquisys M CLM223/253

92 Endress+Hauser

With the Pt 1000 type of temperature sensor, all the resistance values are increased by a factor of 10.

Attach the temperature equivalent resistor in a three-wire system.

Conductivity

If the cell constant k is set to the value in column 2 of the following table, then the conductivity values of this table apply.

Otherwise the following applies: Conductivity [mS/cm] = k[cm-1] ⋅ 1 / R[kΩ]

Resistance R Cell constant k Display for conductivity Display for MΩ

10 Ω 1 cm

-1

100 mS/cm

10 cm

-1

1000 mS/cm

100 Ω 0.1 cm

-1

1 mS/cm 1 kΩ ⋅ cm

1 cm

-1

10 mS/cm

10 cm

-1

100 mS/cm

1000 Ω 0.1 cm

-1

0.1 mS/cm 10 kΩ ⋅ cm

1 cm

-1

1 mS/cm

10 cm

-1

10 mS/cm

10 kΩ 0.01 cm

-1

1 μS/cm 1 MΩ ⋅ cm

0.1 cm

-1

10 μS/cm 100 kΩ ⋅ cm

1 cm

-1

100 μS/cm

10 cm

-1

1 mS/cm

100 kΩ 0.01 cm

-1

0.1 μS/cm 10 MΩ ⋅ cm

0.1 cm

-1

1 μS/cm 1 MΩ ⋅ cm

1 cm

-1

10 μS/cm

1 MΩ 0.01 cm

-1

0.01 μS/cm 100 MΩ ⋅ cm

0.1 cm

-1

0.1 μS/cm 10 MΩ ⋅ cm

1 cm

-1

1 μS/cm

10 MΩ 0.01 cm

-1

0.001 μS/cm

0.1 cm

-1

0.01 μS/cm 100 MΩ ⋅ cm

The MΩ measurement is normally used for pure and ultrapure water and therefore only makes sense for cell constants k= 0.01 cm-1 or k = 0.1 cm-1.

9.1.4 Simulation of inductive sensors for device testing

The inductive sensor cannot be simulated.

However, the overall system comprising the transmitter and inductive sensor can be tested using equivalent resistors. Note the cell constant k (e.g. k

nominal

= 1.98 cm-1 for CLS50,

nominal

= 5.9 cm-1 for CLS52, k

nominal

= 6.3 cm-1 for CLS54).

For accurate simulation, the actual cell constant used (visible in field C124) must be used to calculate the display value.

The formula for calculation also depends on the type of sensor:

• CLS50 and CLS52: conductivity reading [mS/cm] = k[cm-1] ⋅1/R[kΩ]

• CLS54: conductivity reading [mS/cm] = k[cm-1] ⋅1/R[kΩ] ⋅ 1.21

Page 93

Liquisys M CLM223/253 Maintenance

Endress+Hauser 93

Values for simulation with CLS50 at 25 °C (77 °F):

Simulation resistance R Default cell constant k Conductivity reading

2 Ω 1.98 cm

-1

990 mS/cm

10 Ω 1.98 cm

-1

198 mS/cm

100 Ω 1.98 cm

-1

19.8 mS/cm

1 kΩ 1.98 cm

-1

1.98 mS/cm

Simulation with CLS54 at 25 °C (77 °F):

Simulation resistance R Default cell constant k Conductivity reading

10 Ω 6.3 cm

-1

520 mS/cm

26 Ω 6.3 cm

-1

200 mS/cm

100 Ω 6.3 cm

-1

52 mS/cm

260 Ω 6.3 cm

-1

20 mS/cm

2.6 kΩ 6.3 cm

-1

2 mS/cm

26 kΩ 6.3 cm

-1

200 μS/cm

52 kΩ 6.3 cm

-1

100 μS/cm

Conductivity simulation:

Pull a cable through the sensor opening and then connect it to a decade resistor, for instance.

9.1.5 Checking conductive sensors

• Measuring surface connection: The measuring surfaces are directly connected to the connections of the sensor connector. Check with ohmmeter for < 1 Ω.

• Measuring surface shunt: A shunt is not permitted between the measuring surfaces. Check with ohmmeter for > 20 MΩ.

• Temperature sensor shunt: A shunt is not permitted between the measuring surfaces and the temperature sensor. Check with ohmmeter for > 20 MΩ.

• Temperature sensor: See the sensor nameplate for information on the type of the temperature sensor being used. The sensor can be checked at the sensor connector with an ohmmeter: – Pt 100 at 25 °C (77 °F) = 109.79 Ω – Pt 1000 at 25 °C (77 °F) = 1097.9 Ω – NTC 30 k at 25 °C (77 °F) = 30 kΩ

• Terminal: For sensors with a terminal connection (CLS12/13) check the assignment of the terminals to ensure they have not been inadvertently interchanged. Check the tightness of the terminal screws.

Page 94

Maintenance Liquisys M CLM223/253

94 Endress+Hauser

9.1.6 Checking inductive sensors

The following applies to the CLS50, CLS52 and CLS54 sensors.

The sensor cables must be disconnected at the device or junction box for all tests described here!

• Testing the transmitting and receiving coils: Perform the measurement at the white and red coaxial cables, between the inner conductor and shield in each case. – Ohmic resistance

CLS50/52: approx. 0.5 to 2 Ω CLS54: approx. 1 to 3 Ω

– Inductance approx. 180 to 500 mH (for 2 kHz, series circuit as equivalent circuit

diagram) CLS50: approx. 250 to 450 mH CLS52/54: approx. 180 to 550 mH

• Testing the coil shunt: A shunt is not permitted between the two sensor coils (from red coax to white coax). The measured resistance must be > 20 MΩ. Test with the ohmmeter from the red coax cable to the white coax cable.

• Temperature sensor test: Use the table in the "Simulation of conductive sensors for device testing" section to check the Pt 100 / Pt 1000 in the sensor. Measure between the green and white wires and between the green and yellow wires. The resistance values must be identical.

• Temperature sensor shunt test: Shunts are not permitted between the temperature sensor and the coils. Check with ohmmeter for > 20 MΩ Measure between the temperature sensor wires (green + white + yellow) and the coils (red and white coax).

9.1.7 Assembly

Refer to the assembly operating manual for information on servicing and troubleshooting the assembly. The assembly operating manual describes the procedure for mounting and disassembling the assembly, replacing the sensors and seals, and contains information on the material resistance properties, as well as on spare parts and accessories.

9.1.8 Connecting cables and junction boxes

• Use the methods described in chapters "Simulation of conductive/inductive sensors for device test" to perform a quick functional check from the conductivity sensor (sensor connector) to the measuring instrument via an extension. The easiest way to connect resistor decades is with the "Conductivity testing adapter" service kit, order number: 51500629

• Check junction boxes for: – Moisture (influence at low conductivity or for MΩ measurement, where necessary dry

box, replace seals, insert dehydrating bag) – Correct connection of all lines – Connection of the outer shields – Tightness of the terminal screws

Page 95

Liquisys M CLM223/253 Repair

Endress+Hauser 95

10 Repair

10.1 Spare parts

Please order spare parts from your local Sales Office. For this purpose, use the order numbers listed in the "Spare part kits" section.

For safety, you should always provide the following additional data when ordering spare parts:

• Device order code

• Serial number

• Software version, if possible

You can take the order code and serial number from the nameplate.

The software version is provided in the device software provided that the device processor system is still working.

For more detailed information on spare parts kits, please refer to the "Spare Part Finding Tool" on the Internet:

www.endress.com/spareparts_consumables

10.2 Disassembling the panel-mounted device

Please note the effects on the process if the device is taken out of service!

See the exploded drawing for the item numbers.

1. Disconnect the terminal block (item 420 b) from the rear of the device to de-energize the device.

2. Then disconnect the terminal blocks (item 420 a and 430 where applicable) from the rear of the device. Now you can disassemble the device.

3. Press in the latches of the end frame (item 340) and remove the frame from the rear.

4. Release the special screw (item 400) by turning it counter-clockwise.

5. Remove the entire electronics block from the housing. The modules are only mechanically connected and can be easily separated:

6. Simply remove the processor/display module towards the front.

7. Pull out the brackets of the rear plate (item 320) slightly.

8. Now you can remove the side modules.

9. Remove the conductivity transmitter (item 240) as follows:

10. Using a fine wire cutter, nip off the heads of the synthetic distance holders.

11. Then remove the module from above.

Assembly is the reverse of the disassembly sequence. Tighten the special screw fingertight without using a tool.

Page 96

Repair Liquisys M CLM223/253

96 Endress+Hauser

230V

100V

115V

400

345

340

420a

420b

320

240

15/20

40 ... 91

330

290/300

430

310

A0008913

 39 Exploded drawing of panel-mounted device

Page 97

Liquisys M CLM223/253 Repair

Endress+Hauser 97

The exploded drawing contains the components and spare parts of the panel-mounted device. You can take the spare parts and the corresponding order number from the following section using the item numbers.

Item Kit description Name Function/contents Order no.

15 Power unit (main module) LSGA 100/115/230 V AC 51500317

20 Power unit (main module) LSGD 24 V AC + DC 51500318

40 Central module (contr.),

conductive

LSCH-S1 1 current output 51501210

50 Central module (contr.),

conductive

LSCH-S2 2 current outputs 51501212

60 Central module (contr.),

conductive

LSCH-H1 1 current output + HART 51501213

70 Central module (contr.),

conductive

LSCH-H2 2 current outputs + HART 51501214

80 Central module (contr.),

conductive

LSCP-PA PROFIBUS PA/no current output 51501215

90 Central module (contr.),

conductive

LSCP-DP PROFIBUS DP/no current output 51502502

90 Kit for CLM2x3

conductivity central module, conductive, PROFIBUS DP

LSCP-DP PROFIBUS DP central module

Relay module + 2 relays Current inp. + DP terminals Hardware version 2.10 and higher

71134726

41 Central module (contr.),

inductive

LSCH-S1 1 current output 51501216

51 Central module (contr.),

inductive

LSCH-S2 2 current outputs 51501218

61 Central module (contr.),

inductive

LSCH-H1 1 current output + HART 51501219

71 Central module (contr.),

inductive

LSCH-H2 2 current outputs + HART 51501220

81 Central module (contr.),

inductive

LSCP-PA PROFIBUS PA/no current output 51501221

91 Central module (contr.),

inductive

LSCP-DP PROFIBUS DP/no current output 51502501

91 Kit for CLM2x3

conductivity central module, inductive, PROFIBUS DP

LSCP-DP PROFIBUS DP central module

Relay module + 2 relays Current inp. + DP terminals Hardware version 2.10 and higher

71134727

240 Conductivity transmitter

(hazardous area version)

MKIC Conductivity + temperature input 71161137

Conductivity transmitter MKIC Conductivity + temperature input 71161133

290 Relay module LSR1-2 2 relays 51500320

290 Relay module LSR2-2i 2 relays + 4-20 mA current input 51504304

290 Kit for Cxm2x3 relay

module PROFIBUS DP

LSR2-DP Relay module + 2 relays

Curr. input + DP terminals Hardware version 2.10 and higher

71134732

300 Relay module LSR1-4 4 relays 51500321

300 Relay module LSR2-4i 4 relays + 4-20 mA current input 51504305

310 Side panel Kit with 10 parts 51502124

310, 320,

340, 400

Housing mechanical parts Rear plate, side panel, end frame,

special screw

51501076

Page 98

Repair Liquisys M CLM223/253

98 Endress+Hauser

Item Kit description Name Function/contents Order no.

330, 400 Housing module Housing with front membrane, sensory

tappets, seal, special screw, tensioning dogs, connection plates and nameplates

51501075

340 End frame

PROFIBUS-DP

Rear frame for PROFIBUS DP, with Dsubmin plug connector

51502513

345 Grounding terminal strip PE and shielding terminals 51501086

420a,

420b

Terminal strip set Complete terminal strip set, standard +

HART

51501203

420a,

420b

Terminal strip set Complete terminal strip set

PROFIBUS PA

51502126

420a,

420b

Terminal strip set Complete terminal strip set

PROFIBUS DP

51502493

430 Terminal strip Terminal strip for relay module 51501078

A Fuse Part of power unit, item 15

B Choice of line voltage Position of jumper on power unit, item

15 depending on line voltage

10.3 Disassembling the field device

Please note the effects on the process if the device is taken out of service!

See the exploded drawing for the item numbers.

You require the following tools to disassemble the field device:

• Standard set of screwdrivers

• Torx screwdriver, size TX 20

Proceed as follows to disassemble the field device:

1. Open and remove the cover of the connection compartment (item 420).

2. Disconnect the supply terminal (item 470) to de-energize the device.

3. Open the display cover (item 410) and release the ribbon cables (item 310/320) on the central module side (item 40 to 91) .

4. To remove the central module (item 40) release the screw in the display cover (item 450 b).

5. Proceed as follows to remove the electronics box (item 330):

6. Turn the screws in the housing base (item 450 a) by two revolutions to release them.

7. Then push the entire box backwards and remove it from above while making sure that the module locks do not open.

8. Release the ribbon cables (item 310/320).

9. Bend the module locks out and remove the modules.

10. To remove the docking module (item 340) remove the screws in the housing base (item 450 c) and remove the entire assembly from above.

11. To remove the conductivity transmitter (item 240) nip off the heads of the synthetic distance sleeves using a fine wire cutter.

12. Then remove the module from above.

Page 99

Liquisys M CLM223/253 Repair

Endress+Hauser 99

To assemble, carefully push the modules into the guide rails of the electronics box and let them engage in the side box noses.

It is not possible to mount the modules incorrectly. Modules inserted in the electronics box incorrectly are not operable since the ribbon cables cannot be connected.

Make sure the cover seals are intact to guarantee IP 65 ingress protection.

Page 100

Repair Liquisys M CLM223/253

100 Endress+Hauser

100 V

Pos. 10

Netzteil 100 – 230 V AC

230 V

115 V

Sicherung

460a

420

40 ... 91

310/320

240

15/20

340

450c

470

480

290/300

400

430

450a

330

410

460b

370

450b

403

A0008916

 40 Field device exploded drawing