Endress+Hauser Liquisys M CUM223 User manual

BA200C/07/en/03.08
71070892
valid as of:
Software-version 2.40
Operating Instructions
Liquisys M CUM223/253
Transmitter for Turbidity and Suspended Solids

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 !
Æ
Installation
Page 11 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.
Æ
Wiring
Page 16 ff. Here you can find out how to connect sensors to the transmitter.
Æ
Operation
Page 22 ff.
Page 26 ff.
Page 34 ff.
Page 61 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.
Æ
Maintenance
Page 71 ff.
Page 73 ff.
Page 77 ff.
Page 84 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.
Æ
Technical data
Page 11 ff.
Page 91 ff.
Dimensions
Ambient and process conditions, weight, materials etc.
Æ
Appendix
Page 94 ff. Here you can find the operating matrix

Liquisys M CUM223/253
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 . . . . . . . . . . . . . . . . . . . 10
3.2 Incoming acceptance, transport, storage . . . . . . . . . 10
3.3 Installation conditions . . . . . . . . . . . . . . . . . . . . . . 11
3.3.1 Field instrument . . . . . . . . . . . . . . . . . . . . 11
3.3.2 Panel-mounted instrument . . . . . . . . . . . . 12
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 . . . . . . . . . . . . . . . . . . . . . . 16
4.1.1 Electrical connection . . . . . . . . . . . . . . . . . 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 (Turbidity) . . . . . . . . . . . . . . . . . . . 34
6.4.2 Setup 2 (Temperature) . . . . . . . . . . . . . . . . 34
6.4.3 Current input . . . . . . . . . . . . . . . . . . . . . . 36
6.4.4 Current outputs . . . . . . . . . . . . . . . . . . . . . 39
6.4.5 Monitoring functions . . . . . . . . . . . . . . . . . 42
6.4.6 Relay contact configuration . . . . . . . . . . . . 46
6.4.7 Concentration measurement . . . . . . . . . . . 57
6.4.8 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6.4.9 E+H Service . . . . . . . . . . . . . . . . . . . . . . . 59
6.4.10 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.5 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.6 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
6.7 Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
6.8 Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7 Maintenance . . . . . . . . . . . . . . . . . . . . 71
7.1 Maintenance of the entire measuring point . . . . . . . 71
7.1.1 Cleaning the transmitter . . . . . . . . . . . . . . 71
7.1.2 Checking the measuring point . . . . . . . . . . 72
7.1.3 Replacing the sensor . . . . . . . . . . . . . . . . . 72
7.1.4 Maintenance assembly . . . . . . . . . . . . . . . . 72
7.2 "Optoscope" service tool . . . . . . . . . . . . . . . . . . . . 72
8 Accessories . . . . . . . . . . . . . . . . . . . . . 73
8.1 Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8.2 Connection accessories . . . . . . . . . . . . . . . . . . . . . 73
8.3 Mounting accessories . . . . . . . . . . . . . . . . . . . . . . . 74
8.4 Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
8.5 Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . 75
8.6 Software and hardware add-ons . . . . . . . . . . . . . . . 76
8.7 Optoscope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
9 Trouble-shooting . . . . . . . . . . . . . . . . . 77
9.1 Trouble-shooting instructions . . . . . . . . . . . . . . . . . 77
9.2 System error messages . . . . . . . . . . . . . . . . . . . . . . 77
9.3 Process-specific errors . . . . . . . . . . . . . . . . . . . . . . 79
9.4 Instrument-specific errors . . . . . . . . . . . . . . . . . . . 82
9.5 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
9.5.1 Dismantling the panel-mounted instrument 84
9.5.2 Panel-mounted instrument . . . . . . . . . . . . 85
9.5.3 Dismantling the field instrument . . . . . . . . 87
9.5.4 Field instrument . . . . . . . . . . . . . . . . . . . . 88
9.5.5 Replacing the central module . . . . . . . . . . . 90
9.6 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
9.7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Liquisys M CUM223/253
4Endress+Hauser
10 Technical data . . . . . . . . . . . . . . . . . . . 91
10.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
10.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
10.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
10.4 Performance characteristics . . . . . . . . . . . . . . . . . . 92
10.5 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
10.6 Mechanical construction . . . . . . . . . . . . . . . . . . . . 93
11 Appendix. . . . . . . . . . . . . . . . . . . . . . . 94
Index. . . . . . . . . . . . . . . . . . . . . . . . . 101

Liquisys M CUM223/253 Safety instructions
Endress+Hauser 5
1 Safety instructions
1.1 Designated use
Liquisys M is a transmitter for determining the turbidity and the solids content of a liquid medium.
The transmitter is particularly suited for use in the following areas:
• Drinking water treatment
• Water treatment
• Condensate treatment
• Sewage treatment plant
• Chemical 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, commissioning, operation and maintenance of the measuring system must only be
carried out by trained technical personnel.
The technical personnel must be authorized for the specified activities by the system operator.
• Electrical connection must only be carried out by a certified electrician.
• 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 authorized 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 organization.
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 the Operating Instructions (see
also chapter "Scope of delivery").
Immunity to interference
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 CUM223/253
6Endress+Hauser
1.4 Return
If the transmitter has to be repaired, please return it cleaned to the sales center responsible. Please
add a detailed failure description. If the failure diagnosis is not clear please send also the cable and
the sensor.
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 ground 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 CUM223/253 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 release codes for retrofitting the software for Chemoclean (left of the slash) or the Plus package
(right of the slash) are listed under "Codes".
2.1.2 Product structure
a0003258
Fig. 1: CUM253 nameplate (example)
a0003257
Fig. 2: CUM223 nameplate (example)
Version
TB Suspended solids with factory setup > residual concrete water
TU Turbidity and suspended solids measurement
TS Turbidity and suspended solids measurement, 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 CUM223, EEx nA[L] IIC T4 for CUM253
7 24 V AC/DC; CSA Gen. Purp.
824VAC/DC
Output
0 1 x 20 mA, turbidity/SS
1 2 x 20 mA, turbidity/SS and temperature/main measured value/actuating variable
3PROFIBUSPA
4PROFIBUSDP
5 1 x 20 mA, turbidity/SS with HART®
6 2 x 20 mA, turbidity/SS with HART®and temp./main measured value/actuating variable
Additional contacts; analog 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/Chemoclean); current input
26 4 x relay with timer (limit/controller/timer); current input
CUM253-
complete order code
CUM223-
131085-4D
order code
serial no
. /
codes
CUM 253-TS0115
123405G00
0 … 9999 FNU
-10 … 60°C
0/4…20mA
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
turbidity
Made in Germany, D-70839 Gerlingen
131085-4D
order code
serial no
. /
codes
CUM 223-TS0115
123405G00
0 … 9999 FNU
-10 … 60°C
0/4…20mA
230 VAC 50/60 Hz 7.5 VA
-10 … +55°CIP 54 / IP 30
0/4…20mA
-
8732
prot. class ambient temp
.
output 1
output 2
mains
meas. range
temperature
3472
LIQUISYS M
turbidity
Made in Germany, D-70839 Gerlingen

Identification Liquisys M CUM223/253
8Endress+Hauser
2.1.3 Additional functions of the Plus Package
• Current output table to cover wide ranges with varying resolution, fields O33x
• Process Check System (PCS): live check of the sensor, function group P
• Concentration measurement, function group K
• Automatic cleaning function start, field F8
2.2 Scope of delivery
The delivery of the field instrument includes:
• 1 transmitter CUM253
•1plug-inscrewterminal
• 1 cable gland Pg 7
• 1 cable gland Pg 16 reduced
• 2 cable glands Pg 13.5
• 1 Operating Instructions BA200C/07/en
• versions with HART communication:
1 Operating Instructions Field Communication with HART, BA208C/07/en
• versions with PROFIBUS communication:
1 Operating Instructions Field Communication with PROFIBUS PA/DP, BA209C/07/en
• versions with explosion protection for hazardous area zone II (ATEX II 3G):
Safety instructions for use in explosion-hazardous areas, XA194C/07/a3
The delivery of the panel-mounted instrument includes:
• 1 transmitter CUM223
• 1 set of plug-in screw terminals
• 2 tensioning screws
• 1 Operating Instructions BA200C/07/en
• versions with HART communication:
1 Operating Instructions Field Communication with HART, BA208C/07/en
• versions with PROFIBUS communication:
1 Operating Instructions Field Communication with PROFIBUS PA/DP, BA209C/07/en
• versions with explosion protection for hazardous area zone II (ATEX II 3G):
Safety instructions for use in explosion-hazardous areas, XA194C/07/a3
If you have any questions, please contact your supplier or your sales center responsible.
2.3 Certificates and approvals
Declaration of conformity
The product meets the requirements of the harmonized European standards. It thus complies with
the legal requirements of the EC directives.
The manufacturer confirms successful testing of the product by affixing the 4symbol.
Explosion protection for Zone 2
Version Approval
CUM253-..6... ATEX II 3G EEx nA[L] IIC T4
CUM253-..4...
CUM223-..4...
CUM223-..6...
ATEX II 3G [EEx nAL] IIC

Liquisys M CUM223/253 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 for explosion-hazardous areas". These
instructions (XA194C/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.

Installation Liquisys M CUM223/253
10 Endress+Hauser
3.1.1 Measuring system
A complete measuring systems comprises:
• The transmitter Liquisys M CUM223 or CUM253
• A sensor with or without an integrated temperature sensor
• An immersion, flow or retractable assembly
Options: extension cable CYK81, junction box VBM or RM
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 center responsible.
a0003125
Abb. 3: Complete measuring system Liquisys M CUM223/253
1
2
3
Immersion assembly CYA611
Retractable assembly CUA451
Assembly with gas bubble trap
4
5
Liquisys CUM253
Liquisys CUM223
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
CAL REL
REL1
REL1
ALARM
REL2
REL2
E
1
2
3
4
5

Liquisys M CUM223/253 Installation
Endress+Hauser 11
3.3 Installation conditions
3.3.1 Field instrument
a0005733
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
REL1
REL1
ALARM
REL2
REL2
E
Pg 7
Pg 16
M5
11/
0.43
Ø6/
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
a0005734
Fig. 5: View into the field housing
1
2
3
4
Removable electronics box
Partition plate
Terminals
Fuse
1
2
3
4

Installation Liquisys M CUM223/253
12 Endress+Hauser
3.3.2 Panel-mounted instrument
a0005735
Fig. 6: Panel-mounted instrument
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 masts
!Note!
When mounting in the open air with unprotected exposure to weather conditions, a weather
protection cover (see Accessories) is required.
Transmitter wall mounting
a0005736
Fig. 7: Wall mounting field device
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).
90 / 3.54
139 / 5.47
96/3.78
6/
0.24
mm / inch
92 / 3.62
149.5 / 5.89
1
2
154/6.06
mm/inch
Ø6/
Ø 0.24

Liquisys M CUM223/253 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")). The kit can be acquired as an accessory (see "Accessories" section).
a0005737
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 on the post or pipe using the clip.
1
2
3
1
1
3
Ø max. 60 /
2.36
mm / inch

Installation Liquisys M CUM223/253
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.
a0005738
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 CUM223/253 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").
a0005739
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* mm / inch

Wiring Liquisys M CUM223/253
16 Endress+Hauser
4 Wiring
4.1 Electrical connection
#Warning!
• The electrical connection must only be carried out by a certified electrician.
• 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 CUM223/253 Wiring
Endress+Hauser 17
4.1.1 Electrical connection
!Note!
The device is approved for protection class II and is generally operated without a protective ground
connection.
The circuits "C" and "F" are not galvanically isolated from each other.
a0003126
Abb. 11: Electrical connection of the transmitter
A
B
C
D
E
F
G
Sensor
Signal output 1 turbidity/solids content
Signal output 2 temperature
Binary input 1 (Hold)
Binary input 2 (Chemoclean)
Aux. voltage output
Alarm (current-free contact position)
H
I
J
K
L
M
Relay 1 (current-free contact position)
Relay 2 (current-free contact position)
Relay 3 (current-free contact position)
Relay 4 (current-free contact position)
Currentinput4to20mA
Power supply
47
48
49
57
58
59
41
42
43
15 V
85
86
10-50 V
81
93
82
94
10-50 V
TU
mA
31
32
mA
33
34
51
52
53
54
55
56
97
88
87
96
S
GN
WH
BN
YE
23 +
24 -
mA
L+
L–N
L1
~=
A
B
C
D
E
F
G
H
I
J
K
L
M
A
B

Wiring Liquisys M CUM223/253
18 Endress+Hauser
Field instrument connection
To connect the field instrument proceed as follows:
1. Open the front cover to get access to the terminals.
2. Cut the punching for the Pg gland out of the housing. Mount a Pg gland and guide the
measuring cable through the Pg gland into the housing.
3. Connect the measuring cable in accordance with the connection diagram.
4. Fix the Pg gland.
"Caution!
• Always protect plugs, terminals and cables against humidity.
• Terminals marked NC may not be wired.
• Unmarked terminals may not be wired.
a0003128
Fig. 12: Field instrument connection compartment sticker
!Note!
Please label the sensor terminal block with the sticker provided.
42
+++++-----
434154 55 56
NC
96
88
87
31
NC 97 NC
32
NC
3433
S
B
NC 938685 94 81 82 NC
51 52 53 57 58 59 47 48 49
TU
Temp.
(opt.)
+15V
10mA
GNBN
YEWH
A
REL 4SENSOR REL 3 REL 2 REL 1
131096-4F
Digital 2 Digital 1
87, 88 12 VDC
96, 97
NC
Mains
Hilfsenergie
L1
+
N
-
(AC)
(DC)
Contacts:
max. 2A
AC: 250V/500VA
DC: 30V/60W
+-
23 24
4..20mA

Liquisys M CUM223/253 Wiring
Endress+Hauser 19
Panel-mounted instrument connection
Connect the cables in accordance with the connection diagram.
a0003127
Fig. 13: Panel mounted instrument connection sticker
"Caution!
• Terminals marked NC may not be wired.
• Unmarked terminals may not be wired.
4.1.2 Measuring cable and sensor connection
The sensor is connected via a screened fixed cable. To extend the measuring cable, use a junction
box and an extension cable:
You can also use the measuring cable CMK.
31 +
32 -
33 +
97
NC
Sensor
NC
NC
NC
B
A
YE
GN
WH
BN
34 -
85 +
86 -
93 + S
94 - 42
81 + 43
82 - 41
TU
Temp.
(opt.)
+15V
10mA
Digital 2
Digital 1
96
88 -
87 +
NC
NC
131083-4C
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
Sensor Sensor cable Extension
Turbidity sensor CUS31/CUS41 Fixed cable VBM junction box + CYK81 cable
Maximum cable length
Turbidity sensor CUS31/CUS41 max. 200 m (656 ft.) with CYK81

Wiring Liquisys M CUM223/253
20 Endress+Hauser
Structure of the measuring cable
a0003265
Fig. 14: Structure of measuring cable CYK8 and CYK81 (extension cable)
!Note!
For further information on cables and junction boxes refer to the chapter "Accessories".
Connection of the sensor
a0003129
Fig. 15: Connection of the turbidity sensors CUS31 and CUS41
GN
YE
WH
BN
Com A
Com B
–U
B
+U
B
Sensor CUM 2x3
S
96
97
88
87
S
BK
CYK8
S87 88 96 97
BN WH GN YE
AB
BK