Endress+Hauser Liquisys M CLM223 User manual

BA193C/07/en/09.05
51500270
valid as of:
Liquisys Software-version 2.32
Operating Instructions
Liquisys M CLM223/253
Transmitter for Conductivity

Endress+Hauser
Brief operating instructions
This explains how to use these Operating Instructions to commission your transmitter quickly and
safely:
Safety instructions
Page 5 ff.
Page 6 ff.
General safety instructions
Explanation of the warning symbols
You can find special instructions at the appropriate position in the chapter in question. The
positions are indicated with the icons Warning #, Caution "and Note !
▼
Installation
Page 10 ff.
Page 12 ff.
Here you can find information on installation conditions and the dimensions of the transmitter.
You can find information on how to install the transmitter on these pages.
▼
Wiring
Page 17 ff. Here you can find out how to connect sensors to the transmitter.
▼
Operation
Page 22 ff.
Page 27 ff.
Page 34 ff.
Page 68 ff.
The display and operating elements are described here.
The operating concept is explained here.
The system configuration is explained here.
You can find information on how to calibrate the sensor on these pages.
▼
Maintenance
Page 71 ff.
Page 76 ff.
Page 80 ff.
Page 88 ff.
Here you can find information on the maintenance of the entire measuring point.
The accessories which can be delivered for the transmitter are listed on the pages indicated.
Here you can find information on trouble-shooting.
Here you can find an overview of the spare parts which can be delivered as well as an overview
of the system.
▼
Technical data
Page 10 ff.
Page 95 ff.
Dimensions
Ambient and process conditions, weight, materials etc.
▼
Appendix
Page 100 ff. Here you can find the operating matrix

Liquisys M CLM223/253
Endress+Hauser 3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . . . 5
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Installation, commissioning and operation . . . . . . . . 5
1.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.5 Notes on safety icons and symbols . . . . . . . . . . . . . . 6
2 Identification . . . . . . . . . . . . . . . . . . . . 7
2.1 Device designation . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1.2 Product structure . . . . . . . . . . . . . . . . . . . . 7
2.1.3 Additional functions of the Plus Package . . . 8
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Certificates and approvals . . . . . . . . . . . . . . . . . . . . 8
3 Installation . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Quick installation guide . . . . . . . . . . . . . . . . . . . . . . 9
3.1.1 Measuring system . . . . . . . . . . . . . . . . . . . . 9
3.2 Incoming acceptance, transport, storage . . . . . . . . . 10
3.3 Installation conditions . . . . . . . . . . . . . . . . . . . . . . 10
3.3.1 Field instrument . . . . . . . . . . . . . . . . . . . . 10
3.3.2 Panel-mounted instrument . . . . . . . . . . . . 11
3.4 Installation instructions . . . . . . . . . . . . . . . . . . . . . 12
3.4.1 Field instrument . . . . . . . . . . . . . . . . . . . . 12
3.4.2 Panel-mounted instrument . . . . . . . . . . . . 15
3.5 Post-installation check . . . . . . . . . . . . . . . . . . . . . . 15
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 16
4.1 Electrical connection . . . . . . . . . . . . . . . . . . . . . . 17
4.1.1 Connection diagram . . . . . . . . . . . . . . . . . 17
4.1.2 Measuring cable and sensor connection . . . 19
4.1.3 Alarm contact . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Post-connection check . . . . . . . . . . . . . . . . . . . . . . 21
5 Operation . . . . . . . . . . . . . . . . . . . . . . 22
5.1 Quick operation guide . . . . . . . . . . . . . . . . . . . . . . 22
5.2 Display and operating elements . . . . . . . . . . . . . . . 22
5.2.1 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.2.2 Operating elements . . . . . . . . . . . . . . . . . . 23
5.2.3 Key assignment . . . . . . . . . . . . . . . . . . . . . 24
5.3 Local Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.1 Automatic/manual mode . . . . . . . . . . . . . 26
5.3.2 Operating concept . . . . . . . . . . . . . . . . . . . 27
6 Commissioning . . . . . . . . . . . . . . . . . . 29
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.2 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3 Quick start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4 System configuration . . . . . . . . . . . . . . . . . . . . . . . 34
6.4.1 Setup 1 (Conductivity) . . . . . . . . . . . . . . . . 34
6.4.2 Setup 2 (Temperature) . . . . . . . . . . . . . . . . 35
6.4.3 Current input . . . . . . . . . . . . . . . . . . . . . . 38
6.4.4 Current outputs . . . . . . . . . . . . . . . . . . . . . 41
6.4.5 Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.4.6 Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.4.7 Relay contact configuration . . . . . . . . . . . . 48
6.4.8 Temperature compensation with table . . . . 61
6.4.9 Concentration measurement . . . . . . . . . . . 62
6.4.10 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.4.11 E+H Service . . . . . . . . . . . . . . . . . . . . . . . 66
6.4.12 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.5 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.6 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
7 Maintenance . . . . . . . . . . . . . . . . . . . . 71
7.1 Maintenance of the entire measuring point . . . . . . . 71
7.1.1 Cleaning the transmitter . . . . . . . . . . . . . . 71
7.1.2 Cleaning the conductivity sensors . . . . . . . 72
7.1.3 Simulation of conductive sensors for
device test . . . . . . . . . . . . . . . . . . . . . . . . . 72
7.1.4 Simulation of inductive sensors for
device test . . . . . . . . . . . . . . . . . . . . . . . . . 74
7.1.5 Check of conductive sensors . . . . . . . . . . . 74
7.1.6 Check of inductive sensors . . . . . . . . . . . . . 75
7.1.7 Connecting lines and junction boxes . . . . . 75
7.2 "Optoscope" service tool . . . . . . . . . . . . . . . . . . . . 75
8 Accessories . . . . . . . . . . . . . . . . . . . . . 76
8.1 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.2 Connection accessories . . . . . . . . . . . . . . . . . . . . . 76
8.3 Mounting accessories . . . . . . . . . . . . . . . . . . . . . . . 77
8.4 Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.5 Software and hardware add-ons . . . . . . . . . . . . . . . 79
8.6 Calibration solutions . . . . . . . . . . . . . . . . . . . . . . . 79
8.7 Optoscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
9 Trouble-shooting . . . . . . . . . . . . . . . . . 80
9.1 Trouble-shooting instructions . . . . . . . . . . . . . . . . . 80
9.2 System error messages . . . . . . . . . . . . . . . . . . . . . . 80
9.3 Process specific errors . . . . . . . . . . . . . . . . . . . . . . 83
9.4 Instrument specific errors . . . . . . . . . . . . . . . . . . . . 86
9.5 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
9.5.1 Dismantling of panel mounted instrument . 88
9.5.2 Panel mounted instrument . . . . . . . . . . . . . 89
9.5.3 Dismantling of field instrument . . . . . . . . . 91
9.5.4 Field instrument . . . . . . . . . . . . . . . . . . . . 92
9.5.5 Replacing the controller . . . . . . . . . . . . . . . 94
9.6 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
9.7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Liquisys M CLM223/253
4Endress+Hauser
10 Technical data . . . . . . . . . . . . . . . . . . . 95
10.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
10.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
10.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.4 Performance characteristics . . . . . . . . . . . . . . . . . . 97
10.5 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
10.6 Mechanical construction . . . . . . . . . . . . . . . . . . . . 98
10.7 Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
11 Appendix. . . . . . . . . . . . . . . . . . . . . . 100
Index. . . . . . . . . . . . . . . . . . . . . . . . . 105

Liquisys M CLM223/253 Safety instructions
Endress+Hauser 5
1 Safety instructions
1.1 Designated use
Liquisys M is a transmitter for determining the conductivity and the resistivity of a liquid medium.
The transmitter is particularly suited for use in the following areas:
• Ultrapure water
• Water treatment
• Cooling water desalinisation
• Condensate treatment
• Municipal sewage treatment plants
• Chemical industry
• Food industry
• Pharmaceutical industry
Any other use than the one described here compromises the safety of persons and the entire
measuring system and is, therefore, not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.2 Installation, commissioning and operation
Please note the following items:
• Installation, electrical connection, commissioning, operation and maintenance of the measuring
system must only be carried out by trained technical personnel.
The technical personnel must be authorised for the specified activities by the system operator.
• Technical personnel must have read and understood these Operating Instructions and must
adhere to them.
• Before commissioning the entire measuring point, check all the connections for
correctness. Ensure that electrical cables and hose connections are not damaged.
• Do not operate damaged products and secure them against unintentional
commissioning. Mark the damaged product as being defective.
• Measuring point faults may only be rectified by authorised and specially trained
personnel.
• If faults can not be rectified, the products must be taken out of service and secured against
unintentional commissioning.
• Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the service organisation.
1.3 Operational safety
The transmitter has been designed and tested according to the state of the art and left the factory in
perfect functioning order.
Relevant regulations and European standards have been met.
As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local prevailing standards and regulations.
Ex systems have an additional Ex documentation which is part of these Operating Instructions (see
also chapter "Scope of delivery").
EMC
This instrument has been tested for electromagnetic compatibility in industrial use according to
applicable European standards.
Protection against interference as specified above is valid only for an instrument
connected according to the instructions in these Operating Instructions.

Safety instructions Liquisys M CLM223/253
6Endress+Hauser
1.4 Return
If the device requires repair, please send it cleaned to the sales centre responsible. Please use the
original packaging, if possible.
1.5 Notes on safety icons and symbols
Safety icons
Electrical symbols
#
Warning!
This symbol alerts you to hazards. They can cause serious damage to the instrument or to persons
if ignored.
"
Caution!
This symbol alerts you to possible faults which could arise from incorrect operation. They could
cause damage to the instrument if ignored.
!Note!
This symbol indicates important items of information.
%Direct Current (DC)
A terminal at which DC is applied or through which DC flows.
&Alternating Current (AC)
A terminal at which (sine-form) AC is applied or through which AC flows.
)Ground connecting
A terminal, which, from the user’s point of view, is already grounded using a grounding system.
*Protective earth terminal
A terminal which must be grounded before other connections may be set up.
bAlarm relay
Input
Output
DC voltage source
Temperature sensor

Liquisys M CLM223/253 Identification
Endress+Hauser 7
2 Identification
2.1 Device designation
2.1.1 Nameplate
Compare the order code on the nameplate (on the transmitter) with the product structure (s.b.) and
your order.
The device version can be identified from the order code.
!Note!
The enabling codes for retrofitting the software for Chemoclean (to the left of the forward slash) or
the Plus Package (to the right of the forward slash) are listed under "Codes".
2.1.2 Product structure
C07-CLM2x3xx-18-06-00-xx-001.eps
Abb. 1: CLM253 nameplate (example)
C07-CLM2x3xx-18-06-00-xx-002.eps
Abb. 2: CLM223 nameplate (example)
Version
CD Conductivity/resistivity measurement (conductive two-electrode sensor)
CS Conductivity/resistivity measurement (conductive two-electrode sensor) with additional functions (Plus package)
ID Conductivity measurement (inductive sensor)
IS Conductivity measurement (inductive sensor) with additional functions (Plus package)
Power supply; approval
0230VAC
1115VAC
2 230 V AC; CSA Gen. Purp.
3 115 V AC; CSA Gen. Purp.
4 230 V AC; ATEX II 3G [EEx nAL] IIC
5100VAC
6 24 V AC/DC; ATEX II 3G [EEx nAL] IIC for CPM223, EEx nA[L] IIC T4 for CPM253
7 24 V AC/DC; CSA Gen. Purp.
824VAC/DC
Output
0 1 x 20 mA, conductivity/resistivity
1 2 x 20 mA, conductivity/resistivity and temperature/main measured value/actuating variable
3PROFIBUSPA
4PROFIBUSDP
5 1 x 20 mA, conductivity/resistivity HART®
6 2 x 20 mA, conductivity/resistivity HART®and temp./main measured value/actuating variable
Additional contacts; analogue input
05 Not selected
10 2 x relay (limit/controller/timer)
15 4 x relay (limit/controller/Chemoclean)
16 4 x relay (limit/controller/timer)
20 2 x relay (limit/controller/timer); current input
25 4 x relay with cleaning (limit/controller/timer/Chemoclean); current input
26 4 x relay with timer (limit/controller/timer); current input
CLM253-
complete order code
CLM223-
131085-4D
order code
serial no
. /
codes
CLM 253-CD0110
123405G00
0 … 2000 mS/cm
-35 … 250°C
0/4 … 20 mA
230 VAC 50/60 Hz 7.5 VA
-10 … +55°CIP 65
0/4…20mA
-
8732
prot. class ambient temp
.
output 1
output 2
mains
meas. range
temperature
3472
LIQUISYS M
conductivity
Made in Germany, D-70839 Gerlingen
131085-4D
order code
serial no
. /
codes
CLM 223-CD0110
123405G00
0 … 2000 mS/cm
-35 … 250°C
0/4 … 20 mA
230 VAC 50/60 Hz 7.5 VA
-10 … +55°CIP 54/ IP 30
0/4 … 20 mA
-
8732
3472
prot. class ambient temp.
output 1 output 2
mains
meas. range
temperature
LIQUISYS M
conductivity
Made in Germany, D-70839 Gerlingen

Identification Liquisys M CLM223/253
8Endress+Hauser
2.1.3 Additional functions of the Plus Package
• Current output table to cover large areas with varying resolution, fields O33x
• Process Check System (PCS): live check of the sensor, function group P
• Ultrapure water monitoring for "Water for injection" (WFI) and "Purified water" (PW) acc. to
United States Pharmacopeia (USP) and European Pharmacopoeia (EP) with pre-alarm
(conductive, additional contacts necessary), fields R26x and R27x
• Polarisation detection (conductive), function group P
• Concentration measurement, function group K
• Temperature compensation via coefficient table, function group T
• Adaptive calibration with installation factor (inductive), fields C13x
• Automatic cleaning function start, field F8
2.2 Scope of delivery
The delivery of the field instrument includes:
• 1 transmitter CLM253
•1plug-inscrewterminal
• 1 cable gland Pg 7
• 1 cable gland Pg 16 reduced
• 2 cable glands Pg 13.5
• 1 operating instructions BA 193C/07/en
• versions with HART communication:
1 operating instructions Field Communication with HART, BA 208C/07/en
• versions with PROFIBUS communication:
1 operating instructions Field Communication with PROFIBUS PA/DP, BA 209C/07/en
• versions with explosion protection for hazardous area zone II (ATEX II 3G):
Safety instructions for use in explosion-hazardous areas, XA 194C/07/a3
The delivery of the panel mounted instrument includes:
• 1 transmitter CLM223
• 1 set of plug-in screw terminals
• 2 tensioning screws
• 1 operating instructions BA 193C/07/en
• versions with HART communication:
1 operating instructions Field Communication with HART, BA 208C/07/en
• versions with PROFIBUS communication:
1 operating instructions Field Communication with PROFIBUS PA/DP, BA 209C/07/en
• versions with explosion protection for hazardous area zone II (ATEX II 3G):
Safety instructions for use in explosion-hazardous areas, XA 194C/07/a3
If you have any questions, please contact your supplier or your sales centre responsible.
2.3 Certificates and approvals
Declaration of conformity
The product meets the legal requirements of the harmonised European standards.
The manufacturer confirms compliance with the standards by affixing the 4symbol.
Explosion protection for Zone 2
The safety instructions for explosion-hazardous areas, XA194C/07/a3, are part of the operating
instructions.
Version Approval
CLM253-..6... ATEX II 3G EEx nA[L] IIC T4
CLM253-..4...
CLM223-..4...
CLM223-..6...
ATEX II 3G [EEx nAL] IIC

Liquisys M CLM223/253 Installation
Endress+Hauser 9
3 Installation
3.1 Quick installation guide
#Warning!
If the measuring point or parts of the measuring point are in explosion-hazardous areas you have to
follow the "Safety instructions for electrical apparatus certified for use in explosion-hazardous
areas". These instructions (XA 194C/07/a3) are part of the scope of delivery.
Proceed as follows to completely install the measuring point:
• Install the transmitter (see "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.
3.1.1 Measuring system
A complete measuring systems comprises:
• The transmitter Liquisys M CLM223 or CLM253
• A sensor with or without an integrated temperature sensor
• A measuring cable CYK71 (conductive), CPK9 for Condumax H CLS16 or CLK5 (inductive)
Options: extension cable, junction box VBM
C07-CLM2x3xx-14-06-00-xx-001.eps
Abb. 3: Complete measuring system Liquisys M CLM223/253
1
2
3
4
Conductive sensor CLS15
Liquisys M CLM253
Liquisys M CLM223
Inductive sensor CLS52
5
6
7
Inductive sensor CLS50
Conductive sensor CLS21
Immersion assembly CLA111
ENDRESS+HAUSER
LIQUISYS S
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
ENDRESS+HAUSER
LIQUISYS S
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
1
2
3
4
5
6
7

Installation Liquisys M CLM223/253
10 Endress+Hauser
3.2 Incoming acceptance, transport, storage
• Make sure the packaging is undamaged!
Inform the supplier about damage to the packaging.
Keep the damaged packaging until the matter has been settled.
• Make sure the contents are undamaged!
Inform the supplier about damage to the delivery contents.
Keep the damaged products until the matter has been settled.
• Check that the scope of delivery is complete and agrees with your order and the
shipping documents.
• The packaging material used to store or to transport the product must provide shock protection
and humidity protection. The original packaging offers the best protection. Also, keep to the
approved ambient conditions (see "Technical data").
• If you have any questions, please contact your supplier or your sales centre responsible.
3.3 Installation conditions
3.3.1 Field instrument
C07-CxM253xx-06-06-00-en-001.EPS
Fig. 4: Field instrument
!Note!
There is a hole in the punching for the cable entry (connection of supply voltage). It serves as a
pressure balance during air freight dispatching. Make sure no moisture penetrates the inside of the
housing before the cable installation. The housing is completely air-tight after the cable installation.
CAL REL
REL 1
REL 1
ALARM
REL 2
REL 2
E
Pg 7
Pg 16
M 5
11/
0.43
Ø 6 /
Ø 0.24
115 / 4.53
157 / 6.18
247 / 9.72
70 / 2.76
70 / 2.76
154 / 6.06
170 / 6.69
mm / inch
Pg 13.5

Liquisys M CLM223/253 Installation
Endress+Hauser 11
3.3.2 Panel-mounted instrument
C07-CxM223xx-06-06-00-en-001.EPS
Fig. 6: Panel-mounted instrument
C07-CxM253xx-11-06-00-xx-001.eps
Fig. 5: View into the field housing
1
2
3
4
Removable electronics box
Partition plate
Terminals
Fuse
1
2
3
4
90 / 3.54
139 / 5.47
96 / 3.78
6 /
0.24
mm / inch
92 / 3.62
149.5 / 5.89

Installation Liquisys M CLM223/253
12 Endress+Hauser
3.4 Installation instructions
3.4.1 Field instrument
There are several ways of securing the field housing:
• Wall mounting with fixing screws
• Post mounting to cylindrical pipes
• Post mounting to square securing mast
!Note!
When mounting in the open air with unprotected exposure to weather conditions, a weather
protection cover (see Accessories) is required.
Transmitter wall mounting
C07-CxM253-11-06-00-en-002.eps
Fig. 7: Field instrument wall mounting
For wall mounting the transmitter, proceed as follows:
1. Drill the bores as shown in Fig. 7 .
2. Drive the two fixing screws through the securing bores (1) from the front.
3. Mount the transmitter on the wall as shown.
4. Cover the bores with plastic caps (2).
1
2
154 / 6.06
mm / inch
Ø 6 /
Ø 0.24

Liquisys M CLM223/253 Installation
Endress+Hauser 13
Transmitter post mounting
!Note!
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 "Accessories" section).
C07-CxM253xx-11-06-00-en-003.eps
Fig. 8: Post mounting field device to cylindrical pipes
For post mounting the transmitter, proceed as follows:
1. Guide the two securing screws (1) of the mounting kit through the openings of the securing
plate (3).
2. Screw the securing plate onto the transmitter using the four fixing screws (2).
3. Secure the retainer with the field device using the clip on the post or pipe.
1
2
3
1
1
3
Ømax. 60 /
2.36

Installation Liquisys M CLM223/253
14 Endress+Hauser
You can also secure the field device to a square universal post in conjunction with the weather
protection cover. These can be acquired as accessories, see "Accessories" section.
C07-CxM253xx-11-06-00-xx-004.eps
Fig. 9: Mounting field device with universal posts and weather protection cover
For mounting the weather protection cover, proceed as follows:
1. Screw the weather protection cover with 2 screws (bores 1) to the upright post (bores 2).
2. Secure the field device to the weather protection cover. To do so, use the bores (3).
3
1
2
3

Liquisys M CLM223/253 Installation
Endress+Hauser 15
3.4.2 Panel-mounted instrument
The panel-mounted instrument is secured with the clamping screws supplied (see →Fig. 10).
The necessary installation depth is approx. 165 mm (6.50").
C07-CxM223xx-11-06-00-en-001.eps
Fig. 10: Securing the panel-mounted instrument
1 Wall of the cabinet
2Seal
3 Clamping screws
* Required installation depth
3.5 Post-installation check
• After installation, check the transmitter for damage.
• Check whether the transmitter is protected against moisture and direct sunlight.
1
2
3
3
3
92 / 3.62
+0.5 +0.02
92 / 3.62
+0.5 +0.02
90 / 3.54
57 / 2.24
33 /
1.30
approx. 25 /
0.98
139 / 5.47
max. 45 /
1.77 6 /
0.24
96 / 3.78
92 /
3.62
approx. 165 / 6.50*

Wiring Liquisys M CLM223/253
16 Endress+Hauser
4 Wiring
#Warning!
• The electrical connection must only be carried out by authorised technical personnel.
• Technical personnel must have read and understood the instructions in this manual and must
adhere to them.
• Ensure that there is no voltage at the power cable before beginning the connection work.

Liquisys M CLM223/253 Wiring
Endress+Hauser 17
4.1 Electrical connection
4.1.1 Connection diagram
The wiring diagram depicted in Fig. 11 shows the connections of an instrument equipped with all
the options. Connecting the sensors and the various measuring cables is explained in more detail in
the "Measuring cables and sensor connection" section.
C07-CLM2x3xx-04-06-00-xx-001.eps
Fig. 11: Electrical connetion of the transmitter
A
B
C
D
E
F
G
H
Sensor (conductive)
Sensor (inductive)
Temperature sensor
Signal output 1 conductivity
Signal output 2 variable
Binary input 1 (Hold)
Binary input 2 (Chemoclean)
Aux. voltage output
I
J
K
L
M
N
O
Alarm (current-free contact position)
Relay 1 (current-free contact position)
Relay 2 (current-free contact position)
Relay 3 (current-free contact position)
Relay 4 (current-free contact position)
Current input 4 ... 20 mA
Power supply
11
12
13
47
48
49
57
58
59
15 V
10-50 V
81
82
10-50 V
93
94
41
42
43
Lf
mA
31
32
mA
33
34
51
52
53
54
55
56
S
84
83
15
16
84
PE
83
L+
L–N
L1
~=
PE
23 +
24 -
mA
15
16
85+
86 _
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O

Wiring Liquisys M CLM223/253
18 Endress+Hauser
!Note!
• The device is approved for protection class II and is generally operated without a protective earth
connection.
• To guarantee measuring stability and functional safety, you have to ground the outer screen of the
sensor cable:
– Inductive sensors: terminal "S"
– Conductive sensors: PE distributor rail
This is on the cover frame for panel-mounted instruments and in the connection compartment
for field devices. Ground the PE distributor rail or the ground terminal.
• The circuits "E" and "H" are not galvanically isolated from each other.
Field instrument connection
Guide the measuring cables through the PG glands into the housing. Connect the measuring cables
in accordance with the terminal assignment (Fig. 12).
C07-CLM253xx-04-06-00-xx-002.eps
Fig. 12: Field instrument connection compartment sticker
1 PE distributor rail for CD/CS version (conductive sensors)
Panel-mounted instrument connection
C07-CLM223xx-04-06-00-xx-003.eps
Fig. 13: Panel-mounted instrument connection sticker
1 Ground terminal
42
+++++-----
434154 55 56
NC
12
13
11
31
83 84 15
32
16
3433
S
NC 938685 94 81 82 NC
51 52 53 57 58 59 47 48 49
Lf
Temp.
(opt.)
+15V
10mA
WH
YE
GN
REL 4SENSOR REL 3 REL 2 REL 1
131095-4F
2 1
11 12
13
NC
Mains
Hilfsenergie
L1
+
N
-
(AC)
(DC)
Contacts:
max. 2A
AC: 250V/500VA
DC: 30V/60W
+-
23 24
4..20mA
PE
1
Binär/ Binary Binär/ Binary
31 +
Sensor
32 -
33 +
34 -
85 +
86 -
93 +
94 - 42
81 + 43
82 - 41
Temp.
(opt.)
+15V
10mA
2
1
NC
NC
NC
131081-4E
S
12
13
YE
GN
Mains
Contacts: max. 2A, AC:250V/500VA, DC:30V/60W
L1 +
AC DC
N-
REL1
REL2
REL3
REL4
4..20mA
24
23
49
COM
COM
COM
COM
-
+
59
54
55
56
52
51
53
58
57
48
47
131084-4C
15
11
WH
L1 +
AC DC
N-
1
Lf 84
16
83
Binary
Binary

Liquisys M CLM223/253 Wiring
Endress+Hauser 19
"Caution!
• Terminals marked NC may not be wired.
• Unmarked terminals may not be wired.
!Note!
Please label the sensor terminal block with the sticker provided.
4.1.2 Measuring cable and sensor connection
You require screened special measuring cables to connect conductivity sensors to the transmitter.
The following multi-core and ready-to-use cable types can be used:
Structure and termination of the measuring cables
C07-CLM2x3xx-04-06-00-de-004.eps
Fig. 14: Structure of the special measuring cables
A Semiconductor layer
sc Screening
!Note!
For further information on the cables and junction boxes, please refer to the "Accessories" section.
Sensor type Cable Extension
Two-electrode sensors with or without
temperature sensor Pt 100
CYK71
CPK9* (for CLS16)
Junction box VBM + CYK71
Inductive sensors CLS50, CLS52 Cable permanently attached
to sensor
Junction box VBM + CLK5
* High-temperature version without PML
Maximum cable length
Conductivity measurement (conductive) max. 100 m (328 ft) with CYK71
Resistivity measurement max 15 m (49.22 ft) with CYK71
Conductivity measurement (inductive) max. 55 m (180.46 ft) with CLK5 (sensor cable incl.)
83
84
11
12
13
CYK71 CLK5
15
16
83
84
11
12
13
A
GN
WH
YE
BK
sc
BN(nc)
GN
WH
YE
A
sc
WH
RD
BN(nc)
sc

Wiring Liquisys M CLM223/253
20 Endress+Hauser
Field instrument measuring cable connection
Proceed as follows to connect a conductivity sensor to the field instrument:
1. Open the housing cover to access the terminal block in the connection compartment.
2. Break the punching of a cable gland from the housing, mount a cable gland and guide the cable
through this cable gland.
3. Connect the cable in accordance with the terminal assignment (see connection compartment
sticker).
4. Tighten the cable gland.
Panel-mounted instrument measuring cable connection
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).
Example of connecting a conductivity sensor
C07-CLM2x3xx-04-06-00-xx-007.eps
Fig. 15: Connection of conductive sensors
C07-CLM2x3xx-04-06-00-xx-008.eps
Fig. 16: Connection of inductive sensors
GN WH YE
GN WH YE
BK
BK
CYK71/CPK9
J
83 16 15 84
23 1
11 12 13
PE
RD WH
CLK 5
J
83 16 15 84
11 12 13
GN WH YE BU RD RD BU
S