Liquisys M CPM223/253 - Endress+Hauser Portal

Liquisys M CPM223/253 - Endress+Hauser Portal
BA00194C/07/EN/15.15
71300840
Products
Solutions
Operating Instructions
Liquisys M CPM223/253
Transmitter for pH and ORP
Services
Liquisys M CPM223/253
Table of contents
Table of contents
1
Document information . . . . . . . . . . . . . . 5
6
Operation options . . . . . . . . . . . . . . . . . 31
1.1
1.2
1.3
1.4
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols on the device . . . . . . . . . . . . . . . . . . .
Electrical symbols . . . . . . . . . . . . . . . . . . . . . .
5
5
5
6
6.1
6.2
2
Basic safety instructions . . . . . . . . . . . . 7
6.3
2.1
2.2
2.3
2.4
2.5
Requirements for personnel . . . . . . . . . . . . . . .
Designated use . . . . . . . . . . . . . . . . . . . . . . . .
Occupational safety . . . . . . . . . . . . . . . . . . . . .
Operational safety . . . . . . . . . . . . . . . . . . . . . .
Product safety . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.1 State of the art . . . . . . . . . . . . . . . . . .
2.5.2 IT security . . . . . . . . . . . . . . . . . . . . . .
Quick operation guide . . . . . . . . . . . . . . . . . .
Display and operating elements . . . . . . . . . . .
6.2.1 Display . . . . . . . . . . . . . . . . . . . . . . .
6.2.2 Operating elements . . . . . . . . . . . . . .
6.2.3 Key functions . . . . . . . . . . . . . . . . . .
Local operation . . . . . . . . . . . . . . . . . . . . . . .
6.3.1 Automatic/manual mode . . . . . . . . . .
6.3.2 Operating concept . . . . . . . . . . . . . . .
7
Commissioning . . . . . . . . . . . . . . . . . . . . 38
7.1
Specificities of commissioning digital
electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specificities of commissioning ISFET sensors . .
Function check . . . . . . . . . . . . . . . . . . . . . . .
Switching on . . . . . . . . . . . . . . . . . . . . . . . . .
Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . . .
Device configuration . . . . . . . . . . . . . . . . . . .
7.6.1 Setup 1 (pH/ORP) . . . . . . . . . . . . . . .
7.6.2 Setup 2 (temperature) . . . . . . . . . . . .
7.6.3 Current input . . . . . . . . . . . . . . . . . .
7.6.4 Current outputs . . . . . . . . . . . . . . . . .
7.6.5 Alarm . . . . . . . . . . . . . . . . . . . . . . . .
7.6.6 Check . . . . . . . . . . . . . . . . . . . . . . . .
7.6.7 Relay configuration . . . . . . . . . . . . . .
7.6.8 Service . . . . . . . . . . . . . . . . . . . . . . .
7.6.9 E+H Service . . . . . . . . . . . . . . . . . . . .
7.6.10 Interfaces . . . . . . . . . . . . . . . . . . . . .
7.6.11 Communication . . . . . . . . . . . . . . . . .
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . .
7.7.1 Numeric calibration . . . . . . . . . . . . . .
7.7.2 Offset . . . . . . . . . . . . . . . . . . . . . . . .
7
7
7
8
8
8
8
3
Incoming acceptance and product
identification . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
3.2
3.3
Incoming acceptance . . . . . . . . . . . . . . . . . . . .
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . .
Product identification . . . . . . . . . . . . . . . . . . .
3.3.1 Nameplate . . . . . . . . . . . . . . . . . . . .
3.3.2 Product identification . . . . . . . . . . . .
Certificates and approvals . . . . . . . . . . . . . . .
3.4.1  mark . . . . . . . . . . . . . . . . . . . . . .
3.4.2 CSA General Purpose . . . . . . . . . . . . .
3.4
9
9
10
10
10
10
10
10
4
Installation . . . . . . . . . . . . . . . . . . . . . . . 11
4.1
4.4
Installation at a glance . . . . . . . . . . . . . . . . . .
4.1.1 Measuring system . . . . . . . . . . . . . . .
Installation conditions . . . . . . . . . . . . . . . . . .
4.2.1 Field device . . . . . . . . . . . . . . . . . . . .
4.2.2 Panel-mounted device . . . . . . . . . . . .
Installation instructions . . . . . . . . . . . . . . . . .
4.3.1 Field device . . . . . . . . . . . . . . . . . . . .
4.3.2 Panel-mounted device . . . . . . . . . . . .
Post-installation check . . . . . . . . . . . . . . . . . .
5
Electrical connection . . . . . . . . . . . . . . 18
5.1
5.2
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical connection without Memosens
functionality . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1 Wiring diagram . . . . . . . . . . . . . . . . .
5.2.2 Measuring cables and sensor
connection . . . . . . . . . . . . . . . . . . . .
Electrical connection with Memosens
functionality . . . . . . . . . . . . . . . . . . . . . . . . .
5.3.1 Wiring diagram . . . . . . . . . . . . . . . . .
5.3.2 Measuring cables and sensor
connection . . . . . . . . . . . . . . . . . . . .
Alarm contact . . . . . . . . . . . . . . . . . . . . . . . .
Post-connection check . . . . . . . . . . . . . . . . . .
4.2
4.3
5.3
5.4
5.5
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7.2
7.3
7.4
7.5
7.6
11
12
13
13
14
15
15
17
17
18
7.7
38
38
38
39
41
43
43
45
45
49
53
54
58
73
75
76
76
77
82
82
8
Diagnostics and troubleshooting . . . 84
8.1
8.2
8.3
8.4
Trouble shooting instructions . . . . . . . . . . . . .
System error messages . . . . . . . . . . . . . . . . . .
Process-specific errors . . . . . . . . . . . . . . . . . .
Device-specific errors . . . . . . . . . . . . . . . . . . .
9
Maintenance . . . . . . . . . . . . . . . . . . . . . . 93
9.1
Maintenance of the entire measuring point . .
9.1.1 Cleaning the transmitter . . . . . . . . . .
9.1.2 Cleaning the pH/ORP electrodes . . . .
9.1.3 Maintenance of digital sensors . . . . .
9.1.4 Liquid KCl supply . . . . . . . . . . . . . . . .
9.1.5 Assembly . . . . . . . . . . . . . . . . . . . . .
9.1.6 Connecting cables and junction
boxes . . . . . . . . . . . . . . . . . . . . . . . .
18
18
21
25
25
28
30
30
31
31
31
33
33
35
35
36
84
84
88
91
94
94
94
95
96
96
96
10
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
10.1
10.2
10.3
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Disassembling the panel-mounted device . . . . 98
Disassembling the field device . . . . . . . . . . . 101
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Table of contents
Liquisys M CPM223/253
10.4 Replacing the central module . . . . . . . . . . . . 104
10.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
10.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
11
Accessories . . . . . . . . . . . . . . . . . . . . . . 106
11.1
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.1.1 pH glass electrodes . . . . . . . . . . . . .
11.1.2 pH ISFET sensors . . . . . . . . . . . . . . .
11.1.3 ORP sensors . . . . . . . . . . . . . . . . . .
11.1.4 Sensor simulators . . . . . . . . . . . . . .
11.2 Connection accessories . . . . . . . . . . . . . . . . .
11.3 Installation accessories . . . . . . . . . . . . . . . .
11.4 Software and hardware add-ons . . . . . . . . . .
11.5 Buffer solutions . . . . . . . . . . . . . . . . . . . . . .
12
Technical data . . . . . . . . . . . . . . . . . . . 111
12.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . .
12.4 Performance characteristics . . . . . . . . . . . . .
12.5 Environment . . . . . . . . . . . . . . . . . . . . . . . .
12.6 Mechanical construction . . . . . . . . . . . . . . .
13
106
106
106
107
108
108
109
110
110
111
111
114
115
115
116
Appendix . . . . . . . . . . . . . . . . . . . . . . . . 117
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
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Liquisys M CPM223/253
Document information
1
Document information
1.1
Warnings
Structure of information
LDANGER
Causes (/consequences)
Consequences of non-compliance
(if applicable)
‣ Corrective action
LWARNING
Causes (/consequences)
Consequences of non-compliance
(if applicable)
‣ Corrective action
LCAUTION
Causes (/consequences)
Consequences of non-compliance
(if applicable)
‣ Corrective action
NOTICE
Cause/situation
Consequences of non-compliance
(if applicable)
‣ Action/note
1.2
Meaning
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious
injury.
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious
injury.
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
This symbol alerts you to situations which may result in damage to
property.
Symbols used
Additional information, tips
Permitted or recommended
Forbidden or not recommended
1.3
Symbol
Symbols on the device
Meaning
Reference to device documentation
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Document information
Liquisys M CPM223/253
1.4
Electrical symbols
Symbol
Meaning
A0027423
A0027424
A0027425
A0027426
Direct current
A terminal at which DC is present or through which DC flows.
Alternating current
A terminal to which alternating voltage (sine-wave) is applied or through
which alternating current flows.
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.
Ground connection
A terminal which, from the user's point of view, is already grounded via a
grounding system.
Protective ground connection
A terminal which must be connected to ground prior to establishing any
other connections.
A0027427
Class II equipment
Reinforced or double insulation
A0019929
Alarm relay
A0027420
Input
A0027428
Output
A0027429
DC voltage source
A0027430
Temperature sensor
A0027431
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Liquisys M CPM223/253
Basic safety instructions
2
Basic safety instructions
2.1
Requirements for personnel
• Installation, commissioning, operation and maintenance of the measuring system may
be carried out only by specially trained technical personnel.
• The technical personnel must be authorized by the plant operator to carry out the
specified activities.
• The electrical connection may be performed only by an electrical technician.
• The technical personnel must have read and understood these Operating Instructions
and must follow the instructions contained therein.
• 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 pH value and/or the oxidation-reduction
potential.
The transmitter is particularly suited for use in the following areas:
• Chemical industry
• Pharmaceutical industry
• Food industry
• Drinking water treatment
• Condensate treatment
• Municipal wastewater treatment plants
• Water treatment
• Electroplating
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.
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Basic safety instructions
Liquisys M CPM223/253
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.
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Liquisys M CPM223/253
Incoming acceptance and product identification
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 CPM253
• 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 CPM223
• 1 set of plug-in screw terminals
• 2 tensioning screws
• 1 BNC connector (solder-free measuring cable connection)
• 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
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Incoming acceptance and product identification
3.3
Product identification
3.3.1
Nameplate
Liquisys M CPM223/253
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:
• CPM253-**2/3/7***
• CPM223-**2/3/7***
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Liquisys M CPM223/253
Installation
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.
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Installation
Liquisys M CPM223/253
4.1.1
Measuring system
A complete measuring system comprises:
• Transmitter Liquisys M CPM223 or CPM253
• pH or ORP sensor with or without an integrated temperature sensor
• Immersion, flow or retractable assembly
• pH measuring cable (e.g. CPK9)
Optionally:
• Extension cable, junction box VBA or VBM
• Weather protection cover CYY101 for field housing
1
2
3
4
8
9
4
7
6
5
A0024634
1
1
2
3
4
5
6
7
8
9
12
Complete measuring systems
Flow assembly CPA250
Junction box VBA
Liquisys M CPM253
Measuring cable e.g. CPK9
Liquisys M CPM223
Retractable assembly Cleanfit W CPA450
Electrode, e.g. Orbisint CPS11
Immersion assembly CPA111
Extension cable
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Liquisys M CPM223/253
Installation
4.2
Installation conditions
4.2.1
Field device
Pg 13.5
Pg 7
Pg 16
247 (9.72)
Ø 6 (0.24)
70 (2.76)
157 (6.18)
M5
11 (0.43)
115 (4.53)
70 (2.76)
154 (6.06)
170 (6.69)
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.
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Installation
Liquisys M CPM223/253
1
4
3
2
A0024640
3
1
2
3
4
View into the field housing
Removable electronics box
Terminals
Partition plate
Fuse
4.2.2
Panel-mounted device
96 (3.78)
6 (0.24)
149.5 (5.89)
139 (5.47)
92 (3.62)
90 (3.54)
A0024641
4
14
Panel-mounted device, dimensions in mm (inch)
Endress+Hauser
Liquisys M CPM223/253
Installation
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
2
Ø 6 (0.24)
1
154 (6.06)
A0024638
5
1
2
Field device wall mounting
Fixing bore holes
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).
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Installation
Liquisys M CPM223/253
1
1
2
Ø max. 60 (2.36)
3
1
3
A0024635
6
1
2
3
Field device on horizontal or vertical pipes
Securing screws
Fixing screws
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
16
Field device on Flexdip CYH112 bracket with weather protection cover
Endress+Hauser
Liquisys M CPM223/253
Installation
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").
+0.5
(3.62
+0.02
)
92+0.5 (3.62+0.02)
92
1
max. 45 (1.77)
139 (5.47)
~ 25 (0.98)
3
96 (3.78)
92 (3.62)
57 (2.24)
3
33 (1.30)
90 (3.54)
2
3
6 (0.24)
~ 165 (6.50)*
A0024639
8
1
2
3
*
Dimensions in mm (inch)
Mounting plate
Seal
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).
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Electrical connection
Liquisys M CPM223/253
5
Electrical connection
LWARNING
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
LWARNING
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.
The electrical connection of the transmitter differs depending on the device version:
• If you are using a device without Memosens functionality, please read the instructions in
the "Electrical connection without Memosens functionality" section.
• If you are using a device with Memosens functionality, please read the instructions in
the "Electrical connection with Memosens functionality" section.
5.2
Electrical connection without Memosens
functionality
5.2.1
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.
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Liquisys M CPM223/253
Electrical connection
41
pH
42
A
43
Ref.
SRC
K
47
B
48
DRN.
C
49
L
S
57
PA/
PM
D
58
59
11
M
12
E
51
13
52
31
F
mA
32
54
pH
55
33
G
N
53
O
56
mA
34
23 +
24 81
P
mA
H
10-50 V
~
=
L1 L+
82
N L93
I
Q
10-50 V
94
85
J
15 V
86
A0026018
9
Endress+Hauser
Electrical connection of the transmitter without Memosens functionality
A
Standard sensor
J
Auxiliary voltage output
B
ISFET sensor
K
Alarm (current-free contact position)
C
Outer shield connection with glass electrodes
L
Relay 1 (current-free contact position)
D
Potential equalization
M
Relay 2 (current-free contact position)
E
Temperature sensor
N
Relay 3 (current-free contact position)
F
Signal output 1 pH/ORP
O
Relay 4 (current-free contact position)
G
Signal output 2 temperature, pH/ORP or controller
P
Current input 4 to 20 mA
H
Binary input 1 (hold)
Q
Power connection
I
Binary input 2 (Chemoclean)
19
Electrical connection
Liquisys M CPM223/253
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 ground the outer
shield of the sensor cable:
– Glass electrodes (PR/PS device version): terminal "S"
– ISFET sensors (IS device version): 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 the PE distributor rail or the ground terminal.
Field device connection
DRN 12
PA/PM
RD WH BN
REF (Glas/IsFET)
(IsFET)
SENSOR
pH / Redox (Glas)
Guide the measuring cables through the PG glands into the housing. Connect the
measuring cables in accordance with the terminal assignment.
REL 4
REL 3
REL 2
REL 1
Contacts:
max. 2A
AC: 250V/500VA
DC: 30V/60W
54 55 56 51 52 53 57 58 59 47 48 49 41 42 43
Mains
Hilfsenergie
NC
NC 31 32 33 34 NC 85 86 93 94 81 82 23 24 NC
+ - + + - +
- +
- +
(IsFET)
4..20mA
Digital 1
Digital 2
+15V
10mA
Temp.
(opt.)
12
pH
Redox
SRC 11 13 S
GN YE
11 13
L1 N (AC)
+
- (DC)
1
131094-4G
A0026019
 10
1
Field device connection compartment sticker
PE distributor rail for IS device version
NOTICE
Non-observance could cause incorrect measurement
‣ Make absolutely sure to protect the cable ends and terminals from moisture.
‣ Terminals marked NC may not be connected.
‣ Unmarked terminals may not be connected.
Please label the sensor terminal block with the sticker provided.
Panel-mounted device connection
To connect the panel-mounted device, connect the cables in accordance with the terminal
assignment to the terminals on the rear of the device.
20
Endress+Hauser
Liquisys M CPM223/253
Electrical connection
131081-4E
131084-4C
(Glass)
47
31 +
COM 48
32 -
REL1
59
1
33 +
pH
Redox
Temp.
(opt.)
(
REF IsFET
Glass
)
PA/PM
BN
13
YE
57
34 -
12
WH
COM 58
NC
11
GN
53
85 +
SRC (IsFET)
51
86 -
COM 52
93 +
56
94 -
54
81 +
COM 55
82 -
-
24
NC
+ 23
NC
REL2
REL3
+15V
10mA
DRN
RD
S
Digital 2
REL4
42
Contacts: max. 2A, AC:250V/500VA, DC:30V/60W
Sensor
BNC: pH/Redox + REF
49
43
Digital 1
AC DC
L1 +
N
-
Mains
4..20mA
41
A0026020
 11
1
Panel-mounted device connection sticker
Ground terminal for IS device version
NOTICE
Non-observance could cause incorrect measurement
‣ Make absolutely sure to protect the cable ends and terminals from moisture.
‣ Terminals marked NC may not be connected.
‣ Unmarked terminals may not be connected.
Please label the sensor terminal block with the sticker provided.
5.2.2
Measuring cables and sensor connection
You require shielded special measuring cables to connect pH and ORP electrodes to the
transmitter. The following multi-core, pre-terminated cable types can be used:
Sensor type
Cable
Extension
Electrode without temperature sensor
CPK1
VBA / VBM box + CYK71 cable
Electrode with temperature sensor Pt 100 and TOP 68 plug-in
head
CPK9
VBA / VBM box + CYK71 cable
ISFET sensor with temperature sensor Pt 100 / Pt 1000 and TOP
68 plug-in head
CPK12
VBA / VBM box + CYK12 cable
pH individual electrode with separate reference electrode and
separate temperature sensor
CPK2
VBA / VBM box + PMK cable
Structure and termination of the measuring cables
Endress+Hauser
21
Electrical connection
Liquisys M CPM223/253
CPK1
PM
pH / Redox
Coax Ref.
pH or Redox
BN PM
CPK2
PM
pH or Redox
Ref. or Redox
Pt 100
PM
CPK9
pH + Pt 100 / Pt 1000
PM
CPK12 pH + Pt 100 / Pt 1000
BN PM
pH or Redox
RD
BU
GN
YE
WH
Redox or Ref.
Ref.
Temp.
Temp.
Temp.
Coax BK Ref.
inner pH
GN Temp.
WH Temp.
YE Temp.
BN PM
Coax BK
Ref
inner SRC ISFET
GN Temp.
WH Temp.
YE Temp.
RD
BN
DRN
PM
A0027564-EN
 12
Structure of the special measuring cables
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 pH electrode 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 Pg gland and guide the
cable through this Pg gland.
3.
Connect the cable in accordance with the terminal assignment.
4.
Tighten the Pg gland.
NOTICE
Moisture can cause incorrect measurements
‣ Make absolutely sure to protect the connectors, cable ends and terminals from
moisture.
Panel-mounted device measuring cable connection
To connect a pH electrode to the panel-mounted device, connect the cable in accordance
with the terminal assignment to the terminals on the rear of the device.
22
Endress+Hauser
Liquisys M CPM223/253
Electrical connection
If you are using glass electrodes with the panel-mounted device, you have to terminate the
measuring cable with a BNC connector. A solder-free BNC connector is supplied with the
device. To do this, proceed as follows:
1.
Cut off end ferrules 2 and 3 of the coaxial cable.
2
3
1
4
A0005744
 13
1
2
3
4
2.
Push the cable gland 5 and the washer 6 onto the
coaxial cable.
3.
Remove the insulation (13 mm (0.51")) and screw the
clamping ring 7 onto the insulation.
Coax cable
Inner shield BK (ref)
Inner coax (pH / mV)
Strand BN (PA)
Parts 5 to 7 are supplied with the BNC
connector for cable diameters 3.2 mm and
5 mm.
4.
Fold the braided shield 8 of the shield over the
clamping ring and cut off the excess material.
5.
There is a semiconductor layer 14 (conductive
membrane) between the inner insulation and the
braided shield 8. Strip this semiconductor layer as far
as the braided shield.
Cable CPK1: device connection
5
6
5
6
7
13 (0.51)
16 (0.63)
14
8
A0005745
 14
6.
Terminating the pH connecting cable for
mounting the BNC elbow plug. Dimensions in
mm (inch)
Remove the inner insulation (4 mm (0.16")), fit end
ferrule 13 on the stripped inner conductor and secure
the end ferrule with a crimping pliers.
13
4 (0.16)
A0005746
 15
7.
Push the BNC connector housing 9 over the cable. The
inner conductor must be located on the clamping
surface 10 of the connector.
8.
Tighten the cable gland 5.
9.
Insert the clamp element 11 and screw in the
connector cover 12. This creates a safe connection
between the inner conductor and the connector pin.
Terminating the pH connecting cable for
mounting the BNC elbow plug. Dimensions in
mm (inch)
9
5
10
11
12
A0005747
 16
Examples for connecting pH and ORP sensors
Endress+Hauser
Mounting the pH connecting cable in the BNC
elbow plug
23
Electrical connection
Liquisys M CPM223/253
The following diagrams show the connection of various pH and ORP sensors.
ϑ
PA/
PM
Schirm /
Screen
S
11 12 13
GN WH YE
BN
S
pH/
Redox
BNC
PA/
PM
S
11 12 13 DRN
SRC Ref
GN WH YE RD
BN innen / BK
internal
PE
Ref
innen / BK
internal
PE
SRC
Ref
BK
)
CPK12
CPK9
A
B
A
BN
B
BN
C
C
CPS471
CPS11
A0027565
 17
Panel-mounted device
Field device
Potential matching PM for symmetrical connection
Schirm /
Screen
S
NC
PA/
PM
S
Ref
BN
BNC
PA/
PM
NC
Ref
Schirm /
screen
A
B
C
Connecting glass electrode CPS11 with CPK9 (left) and ISFET sensor CPS471 with CPK12 (right) to
Liquisys M
BK
BN BNC
BK
CPK1
CPK1
A
B
A
BN
B
BN
C
CPS12
CPS12
A0027566
 18
A
B
C
24
Asymmetrical (without PML) and symmetrical (with PML) connection of ORP electrodes
Panel-mounted device
Field device
Potential matching (PM) in the medium for symmetrical connection
Endress+Hauser
Liquisys M CPM223/253
Electrical connection
The pH and ORP sensors can be connected both symmetrically and asymmetrically.
Generally, the following applies:
• No potential matching connection present: asymmetrical connection
• Potential matching connection present: symmetrical connection
The decision can also depend on the operating conditions.
Please note the following:
• Liquisys M is pre-programmed for symmetrical measurement with potential matching. If
you want asymmetrical measurement, you have to change the configuration in the A2
field.
• If the "asymmetrical" software setting is selected for a symmetrical connection, the
operating life of the reference electrode is reduced.
In the case of a symmetrical connection, the potential matching pin must be
connected and must always be immersed in the medium.
Advantages of symmetrical vs. asymmetrical:
• Symmetrical measurement:
– No leak current since the reference and the pH/ORP electrode is connected with high
impedance
– Reliable measurement under difficult process conditions (strong flowing and highimpedance media, partially soiled diaphragm)
• Asymmetrical measurement:
Possible to use assemblies without potential matching
5.3
Electrical connection with Memosens functionality
5.3.1
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.
Endress+Hauser
25
Electrical connection
Liquisys M CPM223/253
A
41
S
42
BN
87
WH
88
H
43
47
48
B
GN
A
96
49
YE
B
97
57
I
58
31
C
J
59
mA
32
51
pH
52
33
D
K
53
mA
34
54
55
81
E
L
56
10-50 V
82
23 +
24 -
M
93
F
mA
10-50 V
~
=
L1 L+
94
N L85
G
N
15 V
86
A0026028
 19
Electrical connection of the transmitter with Memosens technology
A
Shielding
H
Alarm (current-free contact position)
B
Sensor
I
Relay 1 (current-free contact position)
C
Signal output 1 pH/ORP
J
Relay 2 (current-free contact position)
D
Signal output 2 temperature, pH/ORP or controller
K
Relay 3 (current-free contact position)
E
Binary input 1 (hold)
L
Relay 4 (current-free contact position)
F
Binary input 2 (Chemoclean)
M
Current input 4 to 20 mA
G
Auxiliary voltage output
N
Power connection
The device is approved for protection class II and is generally operated without a
protective ground connection. Do not connect the sensor shielding to the transmitter.
Connecting a field device with Memosens functionality
Guide the measuring cables through the PG glands into the housing. Connect the
measuring cables in accordance with the terminal assignment.
26
Endress+Hauser
Liquisys M CPM223/253
Electrical connection
SENSOR
WH YE
REL 4
REL 3
REL 2
Contacts:
max. 2A
AC: 250V/500VA
DC: 30V/60W
REL 1
54 55 56 51 52 53 57 58 59 47 48 49 41 42 43
Mains
Hilfsenergie
B
NC 88 97 NC
NC
NC 31 32 33 34 NC 85 86 93 94 81 82 23 24 NC
+ - + + - +
- +
- +
4..20mA
Digital 1
Digital 2
+15V
10mA
Temp.
(opt.)
pH
NC 87 96 S
A
BN GN
L1 N (AC)
+
- (DC)
87, 88
136771-0003-4A
A0026033
 20
Connection compartment sticker of field device with Memosens functionality
NOTICE
Non-observance could cause incorrect measurement
‣ Terminals marked NC may not be connected.
‣ Unmarked terminals may not be connected.
Connecting a panel-mounted device with Memosens functionality
Sensor
31 +
NC
pH
32 -
97 B
YE
96 A
GN
88 -
WH
NC
87 +
BN
85 +
NC
33 +
34 -
86 -
Temp.
(opt.)
+15V
10mA
93 +
NC
S
Digital 2
94 -
42
81 +
Contacts: max. 2A, AC:250V/500VA, DC:30V/60W
136771-0001-4A
43
Digital 1
NC
NC
41
AC DC
L1 +
N
-
Mains
82 -
A0026029
 21
Connection sticker of panel-mounted device with Memosens functionality
NOTICE
Non-observance could cause incorrect measurement
‣ Terminals marked NC may not be connected.
‣ Unmarked terminals may not be connected.
Please label the sensor terminal block with the TU sticker provided.
Do not use the pH sticker.
Endress+Hauser
27
Electrical connection
Liquisys M CPM223/253
5.3.2
Measuring cables and sensor connection
To connect pH electrodes with Memosens functionality to the transmitter, you require the
terminated data transmission cable CYK10 with 2x2 cores, twisted pair, shielding and PVC
sheath.
Structure of the measuring cable
1
YE Com B
GN Com A
97
96
WH BN +
87
88
A0026030
 22
1
Structure of the CYK10 measuring cable
Coupling (to connect to the sensor) with integrated electronics
For further information on the cable, please refer to the "Accessories" section.
Proceed as follows to attach the cable coupling to the sensor plug-in head:
60°
1
2
4
3
1. Turn the lower part of the coupling in
such a way that the two noses in the
coupling (items 1, 2) are located over
one another.
2. Push the coupling onto the plug-in
head so that the noses engage in the
groove of the plug-in head (item 3).
3. Turn the lower part of the coupling
(item 4) clockwise as far as it will go
(approx. 60°). This causes the coupling
to move to a lock-in position,
preventing it from being turned back
inadvertently.
Opening is the reverse of the closing
procedure.
A0026031
 23
Handling the coupling
Field device measuring cable connection
Proceed as follows to connect a pH electrode to the field device:
28
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 Pg gland and guide the
cable through this Pg gland.
3.
Connect the cable in accordance with the terminal assignment.
Endress+Hauser
Liquisys M CPM223/253
Electrical connection
4.
Tighten the Pg gland.
Panel-mounted device measuring cable connection
To connect a pH electrode with Memosens functionality, connect the CYK10 cable in
accordance with the terminal assignment to the terminals on the rear of the device (see
connection sticker).
Example of connecting a pH electrode
The following diagram shows the connection of a pH electrode with Memosens
functionality.
S
87 88 96 97
BN WH GN YE
CYK10
CPS11D
A0026032
 24
Connecting CPS11D with CYK10
Signal transmission between the Memosens electrode and the coupling of the CYK10 cable
is non-contact and takes place via completely potted coils. This offers the following
advantages:
• As the electrode and transmitter are galvanically isolated, the signals are not affected by
secondary potential. As a result, in contrast to sensors without Memosens functionality,
a symmetrically high-impedance connection is not required to guarantee reliable
measurement.
• The Memosens plug-in head and the Memosens coupling are completely water-proof.
• There are no open contacts. Contact corrosion, creepage currents and shunts are ruled
out.
Endress+Hauser
29
Electrical connection
Liquisys M CPM223/253
5.4
Alarm contact
A
B
41
41
42
42
43
43
A0006415
 25
A
B
Recommended fail-safe switching for the alarm contact
Normal operating status
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
5.5
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)?
30
Grounding is carried out at the point of
installation.
Endress+Hauser
Liquisys M CPM223/253
Operation options
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
Indicates the current operating mode, "Auto" (green LED) or
"Manual" (yellow LED)
A0027220
Indicates the activated relay in the "Manual" mode (red LED)
The status of relays 3 and 4 is indicated on the LC display.
A0027222
A0027221
A0027218
Endress+Hauser
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
Alarm display, e.g. in event of continuous limit value overshoot,
temperature sensor failure or system error (see error list)
31
Operation options
Liquisys M CPM223/253
LC display
1
2
pH
05 R262
14
13
12
11
5
4
3
6
7
Setpoint
10
8
9
A0027223-EN
32
 26
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:
7
Function code
inactive,
active
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
Temperature offset
14
Sensor symbol (see the "Calibration" section)
Endress+Hauser
Liquisys M CPM223/253
Operation options
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.
1
2
7
3
4
6
5
A0024629-EN
 27
1
2
3
4
5
6
7
Operating elements
LC display for displaying the measured values and configuration data
Key to switch relays in manual mode and to display the active contact
LED for alarm function
Changeover switch for automatic/manual mode
LEDs for limit contactor relay (switch status)
Main operating keys for calibration and device configuration
Field for user-defined information
6.2.3
Key functions
CAL key
A0027235
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.
ENTER key
A0027236
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
Endress+Hauser
33
Operation options
Liquisys M CPM223/253
PLUS key and MINUS key
A0027240
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
• Measured value display in mV
• Current input signal in %
• Current input signal in mA
• 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
A0027234
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).
AUTO key
Use the AUTO key to switch between automatic mode and manual
mode.
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.
A0027237
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.
A0027238
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.
A0027239
34
Endress+Hauser
Liquisys M CPM223/253
Operation options
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:
1.
The transmitter is in automatic mode. The top LED (green)
next to the AUTO key is lit.
2.
Press the AUTOMATIC key.
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.
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).
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.
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.
A0027242
A0027243
A0027240
A0027241
A0027240
A0027234
• 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.
Endress+Hauser
35
Operation options
Liquisys M CPM223/253
6.3.2
Operating concept
Operating modes
Measuring mode:
standard mode of
operation, displaying
current measured values
Setup mode
access to all
configuration
settings
Calibration mode:
execution of
calibration routine
Code
The function groups
are selected with the
PLUS or MINUS key.
A0027244-EN
 28
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.
36
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Liquisys M CPM223/253
Operation options
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.
1
-
2
3
E
E
E
E
E
A0027245
 29
1
2
3
Menu structure
Functions (selection of parameters, entry of numbers)
Function groups, scroll backwards and forwards with the PLUS and MINUS keys
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.
Endress+Hauser
37
Commissioning
Liquisys M CPM223/253
7
Commissioning
7.1
Specificities of commissioning digital electrodes
pH sensors with Memosens technology save the calibration data. For this reason,
commissioning these sensors is different to commissioning standard electrodes.
To do this, proceed as follows:
1.
Install the transmitter and the assembly.
2.
Connect the transmitter and the sensor cable.
3.
Configure the transmitter for your specific requirements (see the "Device
configuration" section).
4.
Connect the sensor with Memosens technology, which was precalibrated at the
factory, and immerse it into the medium or the buffer.
5.
The saved sensor-specific calibration data are automatically transmitted to the
transmitter.
6.
The measured value is displayed. Normally, you can accept this value without
calibrating the sensor.
 Calibration is only required in the following cases:
When very strict accuracy requirements apply
When the sensor has been in storage for longer than 3 months
7.
Check the transfer of the measured value to the process control system or the
evaluation unit.
7.2
Specificities of commissioning ISFET sensors
Switch-on behavior
A closed-control loop is created when the measuring system is switched on. The measured
value adjusts to the real value during this time (approx. 5 to 8 minutes). This settling
behavior occurs every time the liquid film between the pH-sensitive semiconductor and the
reference lead is interrupted (e.g. caused by dry storage or intensive cleaning with
compressed air). The settling time depends on the length of the interruption.
Sensitivity to light
Like all semiconductor components, the ISFET chip is sensitive to light (measured value
variations). However, this only affects the measured value if the sensor is directly exposed
to sunlight. For this reason, avoid direct sunlight when calibrating. Normal ambient light
does not have any effect on the measurement.
7.3
Function check
LWARNING
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.
38
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.4
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 (does not apply for digital sensors).
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)
• SERVICE (S)
• E+H SERVICE (E)
• INTERFACE (I)
Calibration and offset mode
• CALIBRATION (C)
• NUMERIC (N)
• OFFSET (V)
A detailed explanation of the function groups available in the transmitter can be
found in the "Device configuration" section.
2
Function display:
The displayed code indicates
the function position in the
function group.
s
F3
Err.delay
Additional information
A0025560-EN
 30
Information for the user on the display
C131
C132
C133
C121
C
C1
C111
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 →  30
The structure of this code is illustrated in →  31.
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.
A0027502
 31
Function code
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.
Endress+Hauser
39
Commissioning
Liquisys M CPM223/253
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
pH or ORP absolute,
Temperature measurement in °C
Type of temperature compensation
Linear with reference temperature 25 °C
Temperature compensation
Automatic (ATC on)
Limit value for controller 1
pH 16 (ORP: -1500 mV or 0 %)
Limit value for controller 2
pH 16 (ORP: +1500 mV or 100 %)
Hold
Active during configuration and calibration
Contact 1 to 4
Limit contactor pH, function off
Current outputs 1* and 2*
4 to 20 mA
Current output 1: measured value for 4 mA signal current*
pH 2
Current output 1: measured value for 20 mA signal current*
pH 12
Current output 2: temperature value for 4 mA signal current*
0.0 °C
Current output 2: temperature value for 20 mA signal current*
100.0 °C
* with appropriate version
40
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.5
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
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.
4.
Press ENTER to be able to make your settings.
Range of
Display
adjustment
(factory settings in
bold)
S
SERVICE
A0008408-EN
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
ENG
S1
Language
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.
8.
Press ENTER to be able to make your settings for
"Setup 1".
A
SETUP 1
A0007824-EN
9.
In A1, select the desired mode of operation, e.g.
"pH".
Press ENTER to confirm your entry.
pH
ORP (= redox) mV
ORP (= redox) %
pH
A1
Oper.Mode
A0007825-EN
10.
In A2, select the type of connection for your sensor. sym = symmetrical
Also refer to the "Sensor connection" section for
asym =
this.
asymmetrical
Press ENTER to confirm your entry.
sym A2
Wiring
A0007826-EN
11.
In A3, enter the damping factor. Measured value
damping averages the individual measured values
and serves to stabilize the display and the signal
output. Enter "1" if no measured value damping is
required.
Press ENTER to confirm your entry.
1
1 to 60
1 A3
Damping
A0007827-EN
12.
In A4, specify the type of sensor that you are using,
e.g. "Glass" for glass electrode.
Press ENTER to confirm your entry.
Glass
ISFET
Glass A4
Sensor
A0007828-EN
Endress+Hauser
41
Commissioning
Liquisys M CPM223/253
User entry
Range of
Display
adjustment
(factory settings in
bold)
13.
Pt 100
Pt 1K
NTC 30K
None
In A5, select the temperature sensor that the
electrode being used has, e.g. "Pt 100" for a glass
electrode.
Press ENTER to confirm your entry.
The display returns to the initial display of the
"Setup 1" function group.
Pt100 A5
Temp
A0007829-EN
14.
Press the MINUS key until you get to the "Setup 2"
function group.
Press ENTER to make your settings for "Setup 2".
B
SETUP 2
A0009009-EN
15.
In B1, select the type of temperature compensation
for the process, e.g. ATC for automatic temperature
compensation.
Press ENTER to confirm your entry.
If you have chosen ATC, the menu automatically
skips to field B3.
ATC
MTC
ATC
B1
¡C-Proces
A0007831-EN
16.
In B3, select the type of temperature compensation
for the calibration, e.g. ATC for automatic
temperature compensation.
Press ENTER to confirm your entry.
ATC
MTC
The current temperature is displayed in B4. If
necessary, adjust the temperature sensor to an
external measurement.
Press ENTER to confirm your entry.
Actual value
displayed and
entered
-50.0 to 150.0 °C
ATC
B3
¡C-Cal
A0007833-EN
17.
¡C
25.0 B4
RealTemp
A0007834-EN
18.
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
0.0 B5
Temp.Offs
A0007835-EN
19.
42
Press PLUS and MINUS simultaneously to switch to
the measurement mode.
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.6
Device configuration
7.6.1
Setup 1 (pH/ORP)
In the SETUP 1 function group, you can change the settings for the measuring mode and
the sensor. All the settings in this menu are made during initial commissioning. However,
you can change the settings at any time.
An error message (E010) is output if the temperature sensor is defective. Measuring
continues at a process temperature of 25 °C.
Setup 1 for ISFET and standard sensors
Coding Field
Range of
Display
adjustment
(factory settings
in bold)
Info
A
Configuration of basic functions
SETUP 1
function group
A
SETUP 1
A0007824-EN
A1
Select the
pH
operating mode ORP (= redox)
auswählen
mV
ORP (= redox) %
pH
the operating mode
 When
is changed, all user settings
A1
are automatically reset.
Oper.Mode
A0007825-EN
A2
Select the type
of connection
sym =
symmetrical
asym =
asymmetrical
sym A2
Wiring
Detailed information on
symmetrical or asymmetrical
connections can be found in the
"Sensor connection" section.
A0007826-EN
A3
Enter the value
for measured
value damping
1
1 to 60
1 A3
Damping
A0007827-EN
A4
Select the
sensor
Glass
Antimony
ISFET
Glass A4
Sensor
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.
For glass electrodes: glass
For ISFET sensors: ISFET
electrodes may only
 Glass
be used with zero point
pH 7.
A0007828-EN
A5
Select the
temperature
sensor
Pt 100
Pt 1K
NTC 30K
None
Pt100 A5
Temp
A0007829-EN
Endress+Hauser
Selection field only available for
"IS" version.
For ISFET sensors: select Pt 1K
(Pt 1000)
For glass electrodes: select Pt
100
No temperature sensor available:
select MTC in B1 field!
43
Commissioning
Liquisys M CPM223/253
Setup 1 for digital sensors
Coding Field
Range of
adjustment
(factory settings
in bold)
Display
Info
A
Configuration of basic functions
SETUP 1
function group
A
SETUP 1
A0007824-EN
A1
Select the
pH
operating mode
No edit option
pH
A1
Oper.Mode
A0007825-EN
A2
Type of
connection
asym =
asymmetrical
asym A2
Wiring
No edit option
Thanks to the non-contact,
galvanically isolated signal
transmission, only simple
asymmetrical connection is
necessary.
A0025533-EN
A3
Enter the value
for measured
value damping
1
1 to 60
1 A3
Damping
A0007827-EN
A4
Sensor
Glass
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.
No edit option
Glass A4
Sensor
electrodes may only
 Glass
be used with zero point
pH 7.
A0007828-EN
44
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.6.2
Setup 2 (temperature)
Use this function group to change the settings for temperature measurement.
You already made all the settings for this function group during initial commissioning.
However, you can change the values chosen at any time.
Coding Field
Range of
Display
adjustment
(factory settings
in bold)
Info
B
Settings for temperature
measurement
SETUP 2 function
group
B
SETUP 2
A0007830-EN
B1
B2
pH:
Type of
temperature
compensation for
the process
ORP:
Temperature
measurement
• For pH
operating
mode:
ATC
MTC
• For ORP
operating
mode:
Off
On
Enter the process
temperature
25.0 °C
-50.0 to 150.0 °C
ATC
B1
¡C-Proces
If B1 = ATC: jump to B3
If B1 = MTC: in B2, enter the
process temperature which is
to be used for compensation.
A0007831-EN
¡C
25.0 B2
MTC temp.
Only if A1 = pH and B1 =
MTC
You can edit the displayed
value.
The value entered can only be
in °C.
A0007832-EN
B3
Type of
temperature
compensation for
the calibration
ATC
MTC
ATC
B3
¡C-Cal
A0007833-EN
B4
Enter the
temperature
25.0 °C
-50.0 to 150.0 °C
¡C
25.0 B4
RealTemp
If B1 = ATC: editing is
possible.
If B1 = MTC: read only B3 =
MTC, return to B.
A separate temperature
sensor must also be immersed
in the buffer solution.
Only if B1 = ATC
You can edit the displayed
value. The value entered can
only be in °C.
A0007834-EN
B5
Temperature
difference (offset)
is displayed
0.0 °C
-5.0 to 5.0 °C
¡C
0.0 B5
Temp.Offs
Only if B1 = ATC
The difference between the
measured and entered
temperature is displayed.
A0007835-EN
7.6.3
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
Endress+Hauser
45
Commissioning
Liquisys M CPM223/253
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.
1
A
0
1
B
Z2
Z3
0
1
C
0
E
F
D
A0008923
 32
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.
46
Endress+Hauser
Liquisys M CPM223/253
Commissioning
2
1
3
4
F
7
ENDRESS+HAUSER
LIQUISYS S
8
6
5
4 ... 20 mA
A0025124
 33
Sample arrangement for feedforward control of the flow in the main stream to the PID controller
1
Medium tapping point
5
Base
2
Static mixer
6
Acid
3
Injection points
7
Liquisys CPM253
4
Flowmeter
8
CPA250 with CPS11
Feedforward control is a multiplying function as illustrated in the figure below (example
with factory setting):
Y
1.5
1
0.5
0
20
40
Z7
60
80
100
X
A0008942
 34
Y
X
Endress+Hauser
Multiplying feedforward control
Gain Kinfl
Current input signal in [%]
47
Commissioning
Liquisys M CPM223/253
Functions marked in italics are not supported by the basic device version.
Coding Field
Range of
adjustment
(factory
settings in
bold)
Display
Info
Z
Current input settings
CURRENT INPUT
function group
Z
CUR.INPUT
A0024903-EN
Z1
Select flow
monitoring of main
stream (with
controller switchoff)
Off
On
Off Z1
Cont.stop
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.
A0024904-EN
Z2
Enter the delay for
controller switchoff through current
input
0s
0 to 2000 s
s
0 Z2
Off Delay
Brief flow shortfalls can be
suppressed by this delay and do
not result in controller switchoff.
A0024905-EN
Z3
Enter the delay for
controller switchon through current
input
0s
0 to 2000 s
s
0 Z3
On Delay
In the case of a controller, a
delay until the reception of a
representative measured value
is recommended after a long
period without flow.
A0024934-EN
Z4
Enter the switch-off 50 %
limit value for the
0 to 100 %
current input
%
50 Z4
A.Thresh
0 to 100% corresponds to 4 to
20 mA at the current input.
Observe measured value
assignment to the current
output of the flowmeter.
A0024935-EN
Z5
Enter the switch-off Low
direction for the
High
current input
Low Z5
Stop Dir
The controller is switched off if
the value entered in Z4 is
undershot or overshot.
A0024939-EN
Z6
Select feedforward
control to PID
controller
Off
Lin = linear
Basic
Off Z6
PID influ
A0024940-EN
Z7
Enter value for
50 %
feedforward control 0 to 100 %
at which gain = 1
applies
%
50 Z7
Kinflu=1
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).
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.
A0024941-EN
48
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.6.4
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/R266.
pH
12
10
Δ Signal
8
6
0
4
8
12
16
Δ I [mA]
20
I [mA]
A0025023
 35
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:
• pH: 0.03
• ORP: 5 mV
• Temperature 0.25 °C
The values for the sample characteristic →  35 are entered in the following table. The
distance per mA is calculated from Δ signal / Δ mA.
Current output 1
Endress+Hauser
Current output 2
Value pair
[mS/cm]
[%] [°C]
Current
[mA]
Distance
per mA
1
500
4
2
1000
16
41.66
3
2000
20
250
[mS/cm]
[%] [°C]
Current
[mA]
Distance
per mA
49
Commissioning
Liquisys M CPM223/253
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
Value pair
[pH; mV; %; °C]
Current output 2
Current
[mA]
Distance
per mA
[pH; mV; %; °C]
Current
[mA]
Distance
per mA
1
2
3
4
5
6
7
8
9
10
Functions marked in italics are not supported by the basic device version.
Coding Field
Range of
Display
adjustment
(factory settings in
bold)
Info
O
CURRENT
OUTPUT
function group
O
Configuration of the current
output (does not apply for
PROFIBUS).
OUTPUT
A0025026-EN
O1
Select current
output
Out 1
Out 2
Out1
A characteristic can be
selected for every output.
O1
Sel.Out
A0025027-EN
O2
Select measured
variable for 2nd
current output
°C
pH, mV
Contr
¡C O2
Parameter
R237/R266=curr (current
output 2) can only be
selected if O2=Contr
(controller) is selected (relay
card required).
A0025028-EN
O3 (1)
Enter the
characteristic
type
Lin = linear (1)
Sim = simulation
(2)
Tab = table (3)
lin
O3
Sel.Type
A0025029-EN
50
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.
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Coding Field
Range of
Display
adjustment
(factory settings in
bold)
O311
4 to 20mA
0 to 20 mA
Select current
range
Info
4-20
O311
Sel.Range
A0025030-EN
O312
O313
O3 (2)
0/4 mA value:
Enter the
associated
measured value
20 mA value:
Enter the
associated
measured value
Simulate current
output
pH 2.00
pH -2.00 to 16.00
-1500 mV
-1500 to 1500 mV
0.0 %
0.0 to 100.0 %
0.0 °C
-20.0 to 150.0 °C
pH 12.00
pH -2.00 to 16.00
1500 mV
-1500 to 1500 mV
100.0 %
0.0 to 100.0 %
100.0 °C
-20.0 to 150.0 °C
Lin = linear (1)
Sim = simulation
(2)
Tab = table (3)
2.00
pH
O312
0/4 mA
A0025036-EN
pH
12.00 O313
20 mA
A0025037-EN
sim
O3
Sel.Type
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.)
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.)
Simulation is not ended until
O3(1) or O3(3) is selected.
For further characteristics,
see O3 (1), O3 (3).
A0025039-EN
O321
Enter simulation
value
Current value
0.00 to 22.00 mA
mA
10.20 O321
Simulat.
Entering a current value
results in this value being
directly output at the current
output.
A0025040-EN
O3 (3)
Enter current
output table
Lin = linear (1)
Sim = simulation
(2)
Tab = table (3)
table O3
Sel.Type
A0025041-EN
O331
Select table
option
Read
Edit
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).
read O331
Sel.Table
A0025042-EN
O332
Enter number of
table value pairs
1
1 to 10
1 O332
Enter the number of pairs of
x and y values (measured
value and current value)
here.
No.Elem.
A0025043-EN
Endress+Hauser
51
Commissioning
Liquisys M CPM223/253
Coding Field
O333
Range of
Display
adjustment
(factory settings in
bold)
Select table value 1
pair
1 to no. elem.
Assign
Info
1 O333
Sel.Elem.
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.
A0025044-EN
O334
O335
Enter x value
Enter y value
pH 2.00
pH -2.00 to 16.00
-1500 mV
-1500 to 1500 mV
0.0 %
0.0 to 100.0 %
0.0 °C
-20.0 to 150.0 °C
0.00 mA
0.00 to 20.00 mA
pH
0.00 O334
x value = measured value
specified by user.
Meas.val.
A0025047-EN
mA
0.00 O335
mA value
y value = user-defined
current value pertaining to
O334.
Return to O333 until all
values are entered.
A0025048-EN
O336
Message as to
whether table
status is OK
Yes
No
yes O336
Status ok
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).
A0025049-EN
52
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.6.5
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).
Moreover, the electrode can be checked for glass breakage and leak current (P1, P2, P7).
In the event of an alarm, a cleaning function can also be activated (F8).
Functions marked in italics are not supported by the basic device version.
Coding Field
Range of
adjustment
(factory
settings in
bold)
Display
Info
F
Alarm function settings.
ALARM
function group
F
ALARM
A0025141-EN
F1
Select contact
type
Latch =
latching
contact
Momen =
momentary
contact
Latch F1
The option selected only applies
for the fault-signaling contact, not
for the error current.
Cont.Type
A0025142-EN
F2
Select the time
unit for the
alarm delay
s
min
s F2
Time Unit
A0025143-EN
F3
Enter alarm
delay
0 s (min)
0 to 2000 s
(min)
s
0 F3
Depending on the option selected
in F2, the alarm delay can be
entered in s or min.
Err.Delay
A0025144-EN
F4
Select error
current
22 mA
2.4 mA
22mA
"0-20 mA" was selected in
 IfO311,
"2.4 mA" may not be
F4
used.
Err.Curr
A0025145-EN
F5
Select the error
number
1
1 to 255
1 F5
Sel.error
A0025146-EN
Endress+Hauser
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.
53
Commissioning
Liquisys M CPM223/253
Coding Field
F6
Range of
adjustment
(factory
settings in
bold)
Set alarm
Yes
contact to be
No
effective for the
selected error
Display
Info
yes F6
Rel.Assg
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.
A0025147-EN
F7
Set error
No
current to be
Yes
effective for the
selected error
no F7
Curr.Assg
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.
A0025148-EN
F8
Automatic
cleaning
function start
No
Yes
no F8
This field is not available for
certain errors, see the
"Troubleshooting and fault
elimination" section.
CleanTrig
A0025149-EN
F9
Select return to Next = next
menu or next
error number
error
←R
next F9
If ←R is selected, you return to F. If
Next is selected, you go to F5.
Select
A0025150-EN
7.6.6
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.
SCS electrode monitoring
The Sensor Check System monitors the pH and reference electrode for incorrect
measurement and complete failure.
SCS identifies the following reasons for incorrect measurement:
• Electrode glass breakage
• Fine short circuits in the pH measuring circuit, also e.g. moisture or dirt bridges at
terminal points
• Contamination or clogging of the reference electrode
• Leak current for ISFET sensor
The following three monitoring methods are used:
• Monitoring the high impedance of the pH electrode (alarm if a minimum impedance is
undershot, approx. 500 kΩ).
This function cannot be selected for antimony and ISFET electrodes.
• Monitoring the impedance of the reference electrode (alarm if set threshold value
overshot).
This function can only be selected for symmetrically high-impedance measurement.
• Monitoring of leak current for ISFET sensors (pre-alert E168 at ILEAK>200 nA, error
E008 at ILEAK>400 nA).
54
Endress+Hauser
Liquisys M CPM223/253
Commissioning
22 mA
A0025195
 36
SCS alarm
Do not remove the standard electrode from the process without a hold! Since SCS is
measured against the PML, no contact between the inner conductor and PML triggers
an alarm. In digital sensors, SCS is not measured against the PML.
PCS alarm (process check system)
The AC function is used to check measuring signals for deviations. If the measuring signal
change within an hour is smaller than 0.5% (of full scale value of the selected measuring
range), an alarm (E152) is triggered . The reason for such sensor behavior can be
contamination, cable open circuit or similar.
You can monitor the controller activity with the CC function. A malfunction of the
controller is detected and reported thanks to freely adjustable monitoring times (E154 to
E157).
A
t
A0025196
 37
A
PCS alarm (live check)
Constant measuring signal = alarm triggered after PCS alarm time has elapsed
Please note the following:
• The electrode must be symmetrically connected (with PML) to monitor the reference.
• Any PCS alarm pending is automatically deleted as soon as the sensor signal changes.
• Due to its semiconductor component, the ISFET sensor is sensitive to light and reacts
with measured value fluctuations. For this reason, avoid direct sunlight when calibrating
and operating. Normal ambient light does not have any effect on the measurement.
Alarm threshold monitoring
You can use this function to monitor the measured value for permissible upper and lower
limits and trigger an alarm.
Operating voltage SCS for pH sensors with Memosens functionality
Endress+Hauser
55
Commissioning
Liquisys M CPM223/253
If the connection between the pH sensor with Memosens functionality and cable is just
connected but not locked, the supply voltage can drop below the required voltage value due
to the poor coupling. This results in incorrect measurement.
With the operating voltage SCS, the supply voltage of a pH sensor with Memosens
functionality is monitored.
If this value drops below the safety limit, the measured value is ignored and the error
E127 is output.
56
Endress+Hauser
Liquisys M CPM223/253
Commissioning
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
Display
adjustment
(factory settings
in bold)
Info
P
Settings for electrode and
process monitoring
CHECK function
group
P
CHECK
A0009045-EN
P1
Switch SCS
alarm for the
measuring
electrode on or
off
Off
On
Off P1
SCS Glass
A0007903-EN
P2
Switch SCS
alarm for the
reference
electrode on or
off
Off
On
Off P2
SCS Ref
A0007907-EN
P3
Enter SCS alarm
threshold for
reference
electrode
50.0 kΩ
0.0 to 50 kΩ
50.0 P3
k@
SCSThresh
A0007908-EN
P4
Leak current
Read only!
display for ISFET 0.0 to 9.9 µA
sensor
0.0
P4
Monitoring of electrode for glass
breakage (error no.: E008).
Response time approx. 30 s
SCS glass warning (error no.:
E175)
SCS monitoring is not active
during calibration.
Monitoring of reference
electrode for contamination or
clogging (error no.: E030).
Response time approx. 60 s
SCS ref warning (error no.:
E177)
Only if A2=sym.
The measurement result also
contains the resistance of the
medium.
The impedance of the reference
electrode increases with the
degree of contamination.
Not for Memosens
Only if A4= ISFET.
Leak currents > 0.4 µA indicate
damage to the ISFET sensor.
Leak Curr
A0007909-EN
P5
P6
Select alarm
threshold
monitoring
Enter alarm
delay
Off
Low
High
LoHi = low and
high
Lo!
Hi!
LoHi!
0 s (min)
0 to 2000 s
(min)
Off P5
A.Thresh
A0007910-EN
s
0 P6
Err.Delay
A0007911-EN
Endress+Hauser
Alarm possible with or without
controller switch-off.
xxxx = without controller
switch-off
xxxx! = with controller switchoff
Depending on the option
selected in F2, the alarm delay
can be entered in min or s. This
time must first elapse before
undershooting/overshooting in
accordance with field P7/P8
results in an alarm.
57
Commissioning
Liquisys M CPM223/253
Coding Field
Range of
Display
adjustment
(factory settings
in bold)
Info
P7
-2.00 pH
-2.00 to 16.00
pH
Not applicable when P5 = off.
Enter lower
alarm threshold
pH
-2.00 P7
LowAlarm
A0007912-EN
P8
Enter upper
alarm threshold
16.00 pH
-2.00 to 16.00
pH
Not applicable when P5 = off.
pH
16.00 P8
HighAlarm
A0007913-EN
P9
P10
Select process
Off
monitoring (PCS AC
alarm)
CC
ACCC
AC!
CC!
ACCC!
Enter maximum
permissible
duration for
alarm threshold
undershoot
60 min
0 to 2000 min
Off P9
ProcMonit
A0007914-EN
AC = sensor activity monitoring
CC = controller monitoring
Alarm possible with or without
simultaneous controller switchoff.
xxxx = without controller
switch-off
xxxx! = with controller switchoff
Only if P9=CC or AC CC.
min
60 P10
Tmax Low
A0007904-EN
P11
Enter maximum
permissible
duration for
alarm threshold
overshoot
120 min
0 to 2000 min
Enter alarm
threshold (for
P10/P11)
1.00 pH
-2.00 to 16.00
pH
Only if P9=CC or AC CC.
min
120 P11
Tmax High
A0008182-EN
P12
pH
1.0 P12
Setpoint
Set value is an absolute value.
This function is primarily suited
to batch operation and singlesided limit switches.
A0007906-EN
7.6.7
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 pH / ORP: R2 (1)
• Limit contactor for temperature: R2 (2)
• PID controller: R2 (3)
• Timer for cleaning function: R2 (4)
• Chemoclean function: R2 (5)
• Neutralization controller: R2 (6) (for Plus Package)
Limit contactor for pH/ORP measured value and temperature
58
Endress+Hauser
Liquisys M CPM223/253
Commissioning
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 →  38 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.
5
6
1
4
A
2
3
7
t1
t2
t3
t4
t5
t6 t7
t
7
B
3
2
4
6
1
5
t1
t2
t3
t4
t5
t6 t7
t
A0025215
 38
A
B
1
2
3
4
5
6
7
Endress+Hauser
Illustration of the alarm and limit value functions
Switch-on point > switch-off point: Max. function
Switch-on point < switch-off point: Min. function
Alarm threshold
Switch-on point
Switch-off value
Contact ON
Alarm ON
Alarm OFF
Contact OFF
59
Commissioning
Liquisys M CPM223/253
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)
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
60
Endress+Hauser
Liquisys M CPM223/253
Commissioning
A
A
2
1
B
B
A
A
4
3
B
B
A
5
B
A0025218
 39
A
B
1
2
3
4
5
Optimization of settings Tn and Kp
Actual value
Time
Tn too small
Tn too large
Kp too large
Kp too small
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.
Endress+Hauser
61
Commissioning
Liquisys M CPM223/253
A
t1
A
t2
t1
1
1
0
0
t [s]
T
T1
t [s]
T2
A0025219
 40
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 = toff
T1 T2
Impulse period length ( 1/T1 and 1/T2)
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
Y
100 %
A
XW
– XW
Y
100 %
B
– XW
XW
A0025222
 41
A
B
XW
Y
Control characteristic of a proportional controller with direct and inverse control action
Direct = maximum function
Inverse = minimum function
Control deviation
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.
62
Endress+Hauser
Liquisys M CPM223/253
Commissioning
1
A
0
t
1
B
0
t0
t1
t2
t3
t4
t
A0025223
 42
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.
Endress+Hauser
63
Commissioning
Liquisys M CPM223/253
1
A
0
1
B
0
1
C
0
t0
t1
t2
t3
t4
t5
A0025216
 43
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
Neutralization controller
During neutralization control, the pH value of a medium is kept constant by dosing acid
and alkali. Two separate actuating signals are required for this task, one for acid and one
for alkali.
The neutralization controller is a controller with two relay contacts and is specially
designed for this task. The P(ID) controller is available as the controller.
The values for the control gain Kp for acid and alkali can be set separately. The integral
action time Tn and derivative action time Tv apply to both controllers (see the "P(ID)
controller" section).
The "neutral zone" is located between the set values 1 and 2. There is no acid or alkali
dosing (Y=0, ) in the "neutral zone" with a controller without an integral component (P,
PD). In the case of a controller with an integral component (PI, PID), there is constant
alkali/acid dosing (Ynew=Yold). The behavior of the I-component within the neutral zone
depends on the process type (inline/batch).
The "neutral zone" can be shifted as desired in the X direction via set point 1 and 2.
Neutralization control is only possible with relays 1 and 2.
64
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Y [%]
100
1
50
0
2
3
X
4
6
5
A0025220
 44
1
2
3
4
5
6
Control characteristic of a proportional neutralization controller
Neutral zone
Set point 1
Set point
Set point 2
Control contact 1 for alkali
Control contact 2 for acid
Functions marked in italics are not supported by the basic device version.
Coding Field
Range of
adjustment
(factory settings
in bold)
Display
Info
R
Relay contact settings
RELAY
R
RELAIS
A0009058-EN
R1
Select the contact Rel1
to be configured Rel2
Rel3
Rel4
Rel1 R1
Sel.Relay
A0009059-EN
R2 (1)
R211
Configure limit
contactor for
pH/ORP
measurement
Switch function
of R2 (1) off or
on
LC PV = limit
contactor
pH/ORP (1)
LC °C = limit
contactor T (2)
PID controller (3)
Timer (4)
Clean=
Chemoclean (5)
Neutra controller
(6)
Off
On
LC PV
R2
Sel.Type
A0009060-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.
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.
All the settings are retained.
off
R211
Function
A0009067-EN
Endress+Hauser
65
Commissioning
Liquisys M CPM223/253
Coding Field
R212
Range of
adjustment
(factory settings
in bold)
Enter the switch- pH 16.00
on point of the
pH -2.00 to 16.00
contact
1500 mV
-1500 to 15000
100.0 %
0.0 to 100.0 %
Display
Info
16.00
pH
R212
On value
Never set the switch-on point
and the switch-off point to the
same value! (Only the
operating mode selected in A1
is displayed.)
A0008187-EN
R213
Enter the switch- pH 16.00
off point of the
pH -2.00 to 16.00
contact
1500 mV
-1500 to 15000
100.0 %
0.0 to 100.0 %
pH
16.00 R213
Off value
A0008188-EN
R214
Enter pickup
delay
0s
0 to 2000 s
0
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).
s
R214
On Delay
A0009070-EN
R215
Enter dropout
delay
0s
0 to 2000 s
0
s
R215
Off Delay
A0009071-EN
R216
Enter alarm
threshold
pH 16.00
pH -2.00 to 16.00
1500 mV
-1500 to 15000
100.0 %
0.0 to 100.0 %
pH
16.00 R216
A.Thresh
A0008210-EN
R217
Display status for MAX
limit contactor
MIN
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.
Display only
MAX R217
LC State
A0009073-EN
R2 (2)
66
Configure limit
contactor for
temperature
measurement
LC PV = limit
contactor pH/ORP
(1)
LC °C = limit
contactor T (2)
PID controller (3)
Timer (4)
Clean=
Chemoclean (5)
Neutra controller
(6)
LC ¡C
R2
Sel.Type
By confirming with ENTER,
another relay function already
switched on is switched off and
its settings are reset to the
factory settings.
A0009061-EN
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Coding Field
Range of
adjustment
(factory settings
in bold)
R221
Off
On
Switch function
of R2 (2) off or
on
Display
Info
off
R221
Function
A0009074-EN
R222
Enter switch-on
temperature
150.0 °C
-50.0 to 150.0 °C
150.0 R222
¡C
Never set the switch-on point
and the switch-off point to the
same value!
On value
A0008214-EN
R223
Enter switch-off
temperature
150.0 °C
-50.0 to 150.0 °C
150.0 R223
¡C
Off value
A0008215-EN
R224
Enter pickup
delay
0s
0 to 2000 s
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).
0 R224
s
On Delay
A0009077-EN
R225
Enter dropout
delay
0s
0 to 2000 s
0 R225
s
Off Delay
A0009078-EN
R226
Enter alarm
threshold (as
absolute value)
150.0 °C
-50.0 to 150 °C
150.0 R226
¡C
A.Thresh
A0008219-EN
R227
Display status for MAX
limit contactor
MIN
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.
Display only
MAX R227
LC State
A0009080-EN
Endress+Hauser
67
Commissioning
Liquisys M CPM223/253
Coding Field
Range of
adjustment
(factory settings
in bold)
R2 (3)
LC PV = limit
contactor pH/ORP
(1)
LC °C = limit
contactor T (2)
PID controller
(3)
Timer (4)
Clean=
Chemoclean (5)
Neutra controller
(6)
R231
Configure P(ID)
controller
Switch function
of R2 (3) off or
on
Display
Info
PID R2
Sel.Type
By confirming with ENTER,
another relay function already
switched on is switched off and
its settings are reset to the
factory settings.
A0009062-EN
Off
On
Basic
PID+B
off
R231
On = PID controller
Basic = basic load dosing
PID+B = PID controller + basic
load dosing
Function
A0009081-EN
R232
Enter set point
pH 16.00
pH -2.00 to 16.00
1500 mV
-1500 to 15000
0.0 %
0.0 to 100.0 %
pH
16.00 R232
Setpoint
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.
A0008226-EN
R233
Enter control
gain KP
1.00
0.01 to 20.00
1.00 R233
See the "P(ID) controller"
section.
Kp
A0009085-EN
R234
Enter integral
action time Tn
(0.0 = no Icomponent)
0.0 min
0.0 to 999.9 min
0.0
min
R234
Time Tn
A0009086-EN
R235
Enter derivative
action time Tv
(0.0 = no Dcomponent)
0.0 min
0.0 to 999.9 min
0.0
min
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!
See the "P(ID) controller"
section.
R235
Time Tv
A0009087-EN
R236
Select controller
characteristic
Dir = direct
Inv = inverse
dir
R236
Direction
The setting is required
depending on the control
deviation (upward or
downward deviation, see the
"P(ID) controller" section).
A0009088-EN
R237
Select pulse
length or pulse
frequency
Len = pulse
length
Freq = pulse
frequency
Curr = current
output 2
len
R237
Oper.Mode
A0009089-EN
68
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.
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Coding Field
Range of
adjustment
(factory settings
in bold)
R238
10.0 s
0.5 to 999.9 s
Enter pulse
interval
Display
Info
s
10.0 R238
PulsePer.
This field only appears if pulse
length is selected in R237.
If pulse frequency is selected,
R238 is skipped and entries
continue with R239.
A0009090-EN
R239
Enter maximum
pulse frequency
of the adjuster
120 min-1
60 to 180 min-1
120
1/min
R239
Max.PFreq
This field only appears if pulse
frequency is selected in R237.
If pulse length is selected,
R239 is skipped and entries
continue with R2310.
A0009091-EN
R2310
Enter minimum
switch-on time
tON
0.3 s
0.1 to 5.0 s
s
0.3 R2310
This field only appears if pulse
length is selected in R237.
Min.PTime
A0009082-EN
R2311
Enter basic load
0%
0 to 40 %
%
0 R2311
BasicLoad
A0009083-EN
R2 (4)
R241
Configure
LC PV = limit
cleaning function contactor pH/ORP
(timer)
(1)
LC °C = limit
contactor T (2)
PID controller (3)
Timer (4)
Clean=
Chemoclean (5)
Neutra controller
(6)
Switch function
of R2 (4) off or
on
Off
On
Timer R2
Sel.Type
A0009063-EN
off
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
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
Function
A0009092-EN
R242
Enter rinsing/
cleaning time
30 s
0 to 999 s
s
30 R242
Settings for hold and relay are
active for this time.
RinseTime
A0009093-EN
R243
Enter pause time 360 min
1 to 7200 min
min
360 R243
The pause time is the time
between two cleaning cycles
(see the "Timer for cleaning
function" section).
PauseTime
A0009094-EN
Endress+Hauser
69
Commissioning
Liquisys M CPM223/253
Coding Field
Range of
adjustment
(factory settings
in bold)
R244
120 min
1 to R243
Enter minimum
pause time
Display
Info
min
120 R244
The minimum pause time
prevents constant cleaning if a
cleaning trigger is pending.
Min.Pause
A0009095-EN
R2 (5)
R251
Configure
cleaning with
Chemoclean (for
version with four
contacts,
Chemoclean
option and
contacts 3 and 4
assigned)
LC PV = limit
contactor pH/ORP
(1)
LC °C = limit
contactor T (2)
PID controller (3)
Timer (4)
Clean=
Chemoclean (5)
Neutra controller
(6)
Switch function
of R2 (5) off or
on
Off
On
Clean R2
Sel.Type
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.
off R251
Function
A0009096-EN
R252
R253
Select type of
start pulse
Enter pre-rinse
time
Int = internal
(timecontrolled)
Ext = external
(digital input 2)
I+ext = internal +
external
I+stp = internal,
suppressed by
external
20 s
0 to 999 s
int
R252
CleanTrig
A0009097-EN
s
20 R253
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).
Rinsing is performed with
water.
PreRinse
A0009098-EN
R254
Enter cleaning
time
10 s
0 to 999 s
s
10 R254
Cleaning is performed with
cleaning agent and water.
CleanTime
A0009099-EN
R255
Enter post rinse
time
20 s
0 to 999 s
s
20 R255
Rinsing is performed with
water.
PostRinse
A0009100-EN
70
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Coding Field
Range of
adjustment
(factory settings
in bold)
R256
0
0 to 5
Enter number of
repeat cycles
Display
Info
R253 to R255 is repeated.
0 R256
Rep.Rate
A0009101-EN
R257
Enter pause time
360 min
1 to 7200 min
min
360 R257
PauseTime
The pause time is the time
between two cleaning cycles
(see the "Chemoclean function"
section).
A0009102-EN
R258
Enter minimum
pause time
120 min
1 to R257
min
120 R258
Min.Pause
The minimum pause time
prevents constant cleaning if
an external cleaning start is
pending.
A0009103-EN
R259
Enter number of
cleaning cycles
without cleaning
agent (economy
function)
0
0 to 9
Configure
neutralization
controller
LC PV = limit
contactor pH/ORP
(1)
LC °C = limit
contactor T (2)
PID controller (3)
Timer (4)
Clean=
Chemoclean (5)
Neutra controller
(6)
0 R259
EconomyCl
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.
A0009104-EN
R2 (6)
R261
Switch function
of R2 (6) off or
on
Off
On
Neutr R2
Sel.Type
A0008395-EN
Off
Only if A1 = pH.
If neutra controller is selected
for Rel1, only neutra controller
is offered for Rel2.
By confirming with ENTER,
another relay function already
switched on is switched off and
its settings are reset to the
factory settings.
R261
Function
A0009105-EN
R262
Enter set point 1
(or 2)
pH 6.00
pH -2.00 to 16.00
pH
6.00 R262
Setpoint1
Relay assignment 1 and 2 for
neutra controller:
Rel1 = set point 1
Rel2 = set point 2
A0008398-EN
R263
Enter control
1.00
gain Kp1 (or Kp2) 0.10 to 20.00
1.00 R263
Kp Rel1
Relay assignment 1 and 2 for
neutra controller:
Rel1 = Kp1
Rel2 = Kp2
A0008401-EN
Endress+Hauser
71
Commissioning
Liquisys M CPM223/253
Coding Field
R264
Range of
adjustment
(factory settings
in bold)
Enter integral
0.0 min
action time Tn1
0.0 to 999.9 min
(or Tn2) (0.0= no
I-component)
Display
Info
min
0.0 R264
Tn Rel1
Relay assignment 1 and 2 for
neutra controller:
Rel1 = Tn1
Rel2 = Tn2
A0008402-EN
R265
Enter derivative
0.0 min
action time Tv1
0.0 to 999.9 min
(or Tv2) (0.0= no
D-component)
min
0.0 R265
TV Rel1
Relay assignment 1 and 2 for
neutra controller:
Rel1 = Tv1
Rel2 = Tv2
A0008403-EN
R266
Select pulse
length or pulse
frequency
Len = pulse
length
Freq = pulse
frequency
Curr = current
output 2
len
R266
Oper.Mode
A0008404-EN
R267
Enter pulse
interval
10.0 s
0.5 to 999.9 s
s
10.0 R267
Puls Per.
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.
This field only appears if pulse
length is selected in R266.
If pulse frequency is selected,
R267 is skipped and entries
continue with R268.
A0008405-EN
R268
Enter maximum
pulse frequency
of the adjuster
min-1
120
60 to 180 min-1
120
1/min
R268
Max.PFreq
This field only appears if pulse
frequency is selected in R266.
If pulse length is selected,
R268 is skipped and entries
continue with R269.
A0008406-EN
R269
Enter minimum
switch-on time
tON
0.3 s
0.1 to 5.0 s
s
0.3 R269
This field only appears if pulse
length is selected in R266.
Min.PTime
A0008407-EN
R2610
Enter process
type
Batch
Inline
%
Batch R2610
Proc.Type
A0008397-EN
72
Batch = discontinuous process
Inlne = continuous process
There is no further dosing in
the setting range in batch
mode. The I-component is
decreased.
Dosing continues in the setting
range in inline mode. The Icomponent is effective.
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.6.8
Service
Coding Field
Range of
Display
adjustment
(factory settings in
bold)
Info
S
Service function settings.
SERVICE
function group
S
SERVICE
A0008408-EN
S1
Select language
ENG = English
GER = German
FRA = French
ITA = Italian
NL = Dutch
ESP = Spanish
ENG
S1
The option selected only
applies for the fault-signaling
contact, not for the error
current.
Language
A0008409-EN
S2
S3
Configure a
hold
Manual hold
S+C = hold during
configuration and
calibration
Cal = hold during
calibration
Setup = hold during
configuration
None = no hold
Off
On
S+C
S = setup
C = calibration
S2
Auto HOLD
A0008413-EN
off
The setting is retained even in
the event of a power failure.
S3
Man. HOLD
A0008414-EN
S4
Enter hold
dwell period
10 s
0 to 999 s
10
s
S4
Cont.Time
A0008415-EN
S5
Enter SW
0000
upgrade release 0000 to 9999
code (Plus
Package)
0000
S5
PlusCode
A0008416-EN
S6
Enter SW
0000
upgrade release 0000 to 9999
code for
Chemoclean
0000 S6
CleanCode
A0008417-EN
Endress+Hauser
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.
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.
73
Commissioning
Liquisys M CPM223/253
Coding Field
S7
Range of
Display
adjustment
(factory settings in
bold)
Order number is
displayed
Info
order
S7
If the device is upgraded, the
order code is changed
automatically.
PR0005
A0008418-EN
S8
Serial number is
displayed
SerNo
S8
12345678
A0008420-EN
S9
Reset the device No
to the basic
Sens = sensor data
settings
Facty = factory
settings
no
S9
S.Default
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!
A0008421-EN
S10
Perform device
test
No
Displ = display test
no
S10
Test
A0008410-EN
S11
Reference
voltage is
displayed
Current value in mV
25
mV
S11
uncompRef
This is used to check the
reference potential. Value >
50 mV indicates galvanic
voltage in the medium. High
values (> 1000 mV) may
falsify the measured value.
A0008411-EN
S12
Select AC
frequency
50 Hz
60 Hz
50
Hz
S12
AC Freq
Only select 60 Hz if the
frequency of the voltage at
the place of use is 60 Hz, the
measured value is fluctuating
or sporadic SCS errors are
reported.
A0008412-EN
74
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.6.9
E+H Service
Coding Field
Range of
adjustment
(factory settings in
bold)
Display
Info
E
Information on the device
version
E+H SERVICE
function group
E
E+H SERV
A0007857-EN
E1
Select module
E111
E121
E131
E141
E151
Software version
is displayed
E112
E122
E132
E142
E152
Hardware version
is displayed
Contr = controller
(central module) (1)
Trans = transmitter
(2)
Main = power unit
(3)
Rel = relay module
(4)
Sens = sensor (5)
Contr E1
Select
The "Sens = sensor" option
is only available on devices
with Memosens
functionality.
A0007858-EN
xx.xx
E111
SW-Vers.
If E1 = contr: device
software
If E1 = trans, main, rel:
module firmware
If E1 = sens: sensor
software
A0007859-EN
Info display
xx.xx
E112
HW-Vers.
A0007861-EN
E113
E123
E133
E143
E153
Serial number is
displayed
Info display
SerNo
E113
12345678
A0007860-EN
E114
E124
E134
E144
E154
Module ID is
displayed
Info display
LSG
E114
Modul-ID
A0007862-EN
Endress+Hauser
75
Commissioning
Liquisys M CPM223/253
7.6.10
Interfaces
Coding Field
Range of
adjustment
(factory settings
in bold)
Display
Info
I
INTERFACE
function group
I
Communication settings (only
for HART or PROFIBUS device
version).
INTERFACE
A0007863-EN
I1
Enter bus
address
Address
HART: 0 to 15
or
PROFIBUS: 0 to
126
126
I1
Address
A0007864-EN
I2
The tag name is
displayed
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.
Tag I2
@@@@@@@@
A0007865-EN
7.6.11
Communication
For devices with a communication interface, please also refer to the separate Operating
Instructions BA00208C/07/EN (HART®) or BA00209C/07/DE (PROFIBUS®).
76
Endress+Hauser
Liquisys M CPM223/253
Commissioning
7.7
Calibration
Use the CAL key to access the calibration function group.
Use this function group to calibrate the sensor. The calibration can be performed in a
number of ways:
• By measuring in two calibration solutions with known pH value.
• By entering data for the slope and zero point
• In the case of ORP measurement, by entering the mV value or two different % values
Please note the following:
• During initial commissioning of amperometric sensors, calibration is absolutely essential
(except for sensors with Memosens functionality) so that the measuring system can
return precise measurement data.
• If the calibration is aborted by simultaneously pressing the PLUS and MINUS keys
(return to C19, C25 or C36), or if the calibration is faulty, the original calibration data
are used again. 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).
• Any offset set is automatically deleted after the calibration is accepted.
• If the slope or zero point are outside the ranges given in C16 and C17, error 32 becomes
active in the case of the slope or error 33 becomes active in the case of the zero point.
The electrode must then be checked and replaced if necessary.
• If precalibrated digital sensors (Memosens functionality) are connected, the calibration
data are automatically transmitted to the transmitter.
Points to note when calibrating ISFET sensors
Switch-on behavior
A closed-control loop is created when the measuring system is switched on. The measured
value adjusts to the real value during this time (approx. 5 to 8 minutes). This settling
behavior occurs every time the liquid film between the pH-sensitive semiconductor and the
reference lead is interrupted (e.g. caused by dry storage or intensive cleaning with
compressed air). The settling time depends on the length of the interruption.
Sensitivity to light
Like all semiconductor components, the ISFET chip is sensitive to light (measured value
variations). However, this only affects the measured value if the sensor is directly exposed
to sunlight. For this reason, avoid direct sunlight when calibrating. Normal ambient light
does not have any effect on the measurement.
Coding
Field
C (1)
Range of
adjustment
(factory settings
in bold)
Display
Info
pH calibration
CALIBRATION
function group:
C
Only if A1 = pH.
Calibration with two
different buffer
solutions.
CALIBRAT
A0009141-EN
C11
Enter calibration
temperature
25.0 °C
-50.0 to 150.0 °C
Only if B1 = MTC.
¡C
25.0 C11
MTC temp.
A0007837-EN
Endress+Hauser
77
Commissioning
Liquisys M CPM223/253
Coding
Field
Range of
adjustment
(factory settings
in bold)
C12
Enter pH value of the Buffer value of
first buffer solution
the last
calibration
pH 0.00 to 14.00
Display
Info
pH
7.00 C12
Buffer 1
You can edit the
displayed value. The
value is specified by
the corresponding
buffer solution.
A0007838-EN
Insert the electrode into the buffer indicated. In the
case of ATC operation, the temperature sensor must
also be immersed in the buffer solution. Press CAL to
display the current measured value. Then start the
calibration with CAL.
In the case of
symmetrical
measuring operation,
the potential
matching pin must
also be immersed in
the buffer.
A0025778
C13
Calibration is
performed
The display flashes
pH
7.00 C13
Buffer 1
Stability check:
The value is accepted
if the stability level is
≤pH 0.05 for more
than 10 seconds.
A0007839-EN
Manual continuation: if the value becomes stable, you can accept the calibration for buffer solution 1 with the
CAL key.
Automatic continuation: takes place if the value is stable (difference between measured values ≤ 0.05 and
constant value over 10 s). If the value does not stabilize within 5 min, error 44 is set and the calibration is
aborted.
C14
Enter pH value of the Buffer value of
second buffer
the last
solution
calibration
pH 0.00 to 14.00
pH
4.00 C14
Buffer 2
The pH value of the
buffer must be
different to that of
buffer 1.
A plausibility check
takes place.
A0007840-EN
Proceed with buffer 2 as with buffer 1.
C15
Calibration is
performed
The display flashes
pH
4.00 C15
Accepted if stability ≤
±pH 0.05 for more
than 10 s.
Buffer 2
A0007841-EN
C16
Slope is displayed
Normal values:
Glass: 59.16
mV/pH
38.00 to 65.00
mV/pH
Antimony: 59.16
mV/pH
25.00 to 65.00
mV/pH
ISFET: 59.16
mV/pH
38.00 to 65.00
mV/pH
mV/pH
59.16 C16
Slope
A0007842-EN
Press CAL.
78
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Coding
Field
Range of
adjustment
(factory settings
in bold)
C17
Zero point (zero
point / U_is) is
displayed
Normal values:
Glass: pH 7.00
pH 5.00 to 9.00
Antimony: pH
1.00
pH -1.00 to 3.00
ISFET: current
value
-500 to +500 mV
Display
Info
7.00 C17
pH
For ISFET, the zero
point is displayed in
mV.
Zero
A0007843-EN
Press CAL.
C18
Calibration status is
displayed
o.k.
E xxx
o.k. C18
Status
A0007844-EN
Press CAL.
C19
Store calibration
result?
Yes
No
New
yes C19
Store
If C18 = E xxx, then
only No or New.
If New, return to C.
If Yes/No, return to
"Measurement".
A0007845-EN
The electrode can now be reinstalled in the process.
C (2)
CALIBRATION
function group:
ORP mV
calibration
Only if A1 = ORP
(mV).
C
CALIBRAT
A0009141-EN
The transmitter has a calibrated mV display range. An
absolute mV value with a single buffer solution
(adjustment of measuring chain offset) is set. Here, a
buffer solution is used, preferably with 225 or 475 mV.
The maximum
permitted calibration
offset is ±100 mV.
C21
In the case of
symmetrical
measuring operation,
the potential
matching pin must
also be immersed in
the buffer.
Enter the mV value
Current
belonging to the ORP measured value
buffer used
1500 to 1500 mV
mV
225 C21
mV Buffer
A0007846-EN
C22
Calibration is
performed
The display flashes
mV value
mV
225 C22
CAL mV
Stability check:
The value is accepted
if the stability level is
≤ ±1 mV for more
than 10 seconds.
A0007847-EN
C23
Zero point is
displayed
-100 to 100 mV
mV
0 C23
Zero
A0007848-EN
Endress+Hauser
79
Commissioning
Liquisys M CPM223/253
Coding
Field
Range of
adjustment
(factory settings
in bold)
C24
Calibration status is
displayed
o.k.
E xxx
Display
Info
o.k. C24
Status
A0007849-EN
Press CAL.
C25
Store calibration
result?
Yes
No
New
yes C25
Store
If C24 = E xxx, then
only No or New.
If New, return to C.
If Yes/No, return to
"Measurement".
A0007850-EN
C (3)
CALIBRATION
function group:
ORP %
calibration
C
Sensor adjustment
with compensation for
wall effects.
CALIBRAT
A0009141-EN
For the calibration, a sample of the medium is taken in Default values:
two containers. The contents of the first container is
0 % = -1000 mV
detoxified. The contents of the second container
100 % = +1000 mV
remains unchanged. A relative value of 80 % is set with
the "toxic" sample. A relative value of 20 % is set with
the "non-toxic" sample.
The calibration range
is ±1500 mV, the
minimum difference
should be 60 mV.
C31
Start the calibration
with the "toxic" sample
by pressing the CAL
key. The value is
accepted as soon as it
is stable or confirmed
with the CAL key (see
calibration pH).
Determine 80%
value of the "toxic"
sample
80%
%
80 C31
Sample 1
A0007851-EN
C32
Calibration is
performed
The display flashes
mV value is
displayed
mV
200 C32
CAL 80%
Stability check:
The value is accepted
if the stability level is
≤ ±5 mV for more
than 10 seconds.
A0007852-EN
C33
Determine 20%
value of the "toxic"
sample
20%
%
20 C33
The procedure for C31
is repeated with the
"non-toxic" sample to
calibrate value 2.
Sample 2
A0007853-EN
C34
Calibration is
performed
The display flashes
mV value is
displayed
mV
50 C34
CAL 20%
Stability check:
The value is accepted
if the stability level is
≤ ±5 mV for more
than 10 seconds.
A0007854-EN
80
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Coding
Field
Range of
adjustment
(factory settings
in bold)
C35
Calibration status is
displayed
o.k.
E xxx
Display
Info
o.k. C35
Status
A0007855-EN
Press CAL.
C36
Store calibration
result?
Yes
No
New
yes C36
Store
If C24 = E xxx, then
only No or New.
If New, return to C.
If Yes/No, return to
"Measurement".
A0007856-EN
Endress+Hauser
81
Commissioning
Liquisys M CPM223/253
7.7.1
Numeric calibration
During numerical calibration, the slope and zero point can be corrected manually.
Coding Field
Range of adjustment
Display
(factory settings in bold)
Info
N
NUMERICAL
CALIBRATION
N
NUMERIC
A0007866-EN
N1
Enter reference
temperature
25.0 °C
-50.0 to 150.0 °C
25¡C N1
T¡C Ref
A0007867-EN
N2
Enter slope
Glass: 59.16 mV/pH
38.00 to 65.00 mV/pH
Antimony: 59.16 mV/pH
25.00 to 65.00 mV/pH
ISFET: 59.16 mV/pH
38.00 to 65.00 mV/pH
59.16 N2
mv/pH
Slope
If A4 = ISFET:
enter the slope
from the quality
certificate.
A0007868-EN
N3
N4
Enter zero point
Calibration status is
displayed
Normal values:
Glass: pH 7.00
pH 5.00 to 9.00
Antimony: pH 1.00
pH -1.00 to 3.00
ISFET: 0 mV
-500 to +500 mV
o.k.
E xxx
7.00 N3
pH
If A4 = ISFET:
enter the voltage
UIS from the
quality certificate.
Zero
A0007869-EN
o.k. N4
pH
Status
A0007870-EN
Press CAL.
N5
Store calibration
result
Yes
No
New
yes N5
pH
Store
A0007871-EN
7.7.2
Offset
The settings in the OFFSET function group can be used to adjust the measurement to a
reference measurement. This requires a linear shift of all the measured values, i.e. the
adjustment is determined for one measured value, and all others are calculated using the
same adjustment.
82
Endress+Hauser
Liquisys M CPM223/253
Commissioning
Y
A
B
X
A0025780
 45
X
Y
A
B
Offset
Time
Measured value
Adjusted value
Current measured value
Coding Field
Range of adjustment Display
(factory settings in
bold)
Info
V
OFFSET
function group
for pH or ORP
V
OFFSET
Depending on the operating
mode selected, either pH or
ORP appears (i.e. no direct
selection can be made)
A0008422-EN
V1
Enter desired
measured value
Current measured
value
pH -2.00 to 16.00
-1500 to 1500 mV
0.0 to 100.0 %
0.00 V1
pH
Real PV
You can edit the display.
The entry can differ from
the actual value by a
maximum of ±2.0 pH /
±120 mV / ±50 %.
A0008423-EN
V2
Current offset is pH 0.00
displayed
pH -2.00 to 2.00
0 mV
-120 to 120 mV
0.0 %
-50.0 to 50.0 %
0.00 V2
pH
PV Offset
A0008424-EN
V3
Calibration
status is
displayed
o.k.
E xxx
o.k. V3
Status
A0008425-EN
Press CAL.
V4
Store calibration Yes
result
No
New
yes V4
Store
If V3 = E xxx, then only No
or New.
If New, return to V.
If Yes/No, return to
"Measurement".
A0008426-EN
Endress+Hauser
83
Diagnostics and troubleshooting
Liquisys M CPM223/253
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.
E001
E002
E003
E004
E007
E008
E010
84
Display
Tests/remedial action
Alarm
contact
Error
current
Autom.
cleaning
start
PROFIBU
S
Status
Facty
Facty
Facty
PV 1)
User
User
User
Temp
• Switch off device and
switch it on again.
• Load software
compatible with
Device not calibrated,
hardware
calibration data
invalid, no user data or • Load measurementparameter specific
user data invalid
device software.
(EEPROM error),
• If the error persists,
device software not
send in the device for
suitable for hardware
repair to your local
(controller)
sales center or replace
the device.
Yes
No
X
0C
X
0C
X
0C
X
0C
Download error
Invalid configuration.
Repeat download.
Yes
No
0C
Load software compatible
with hardware
Load measurementparameter specific device
software.
Yes
EEPROM memory
error
Device software
version not compatible
with module hardware
version
Transmitter
malfunction, device
software not
compatible with
transmitter version
Yes
No
No
0C
No
No
0C
0C
Yes
SCS alarm:
Glass electrode: glass
breakage
ISFET: leak current >
400 nA
Check glass electrode for
glass breakage or hairline cracks; inspect
electrode plug-in head for
moisture and dry if
necessary; check medium
temperature. Replace
ISFET.
Yes
Temperature sensor
defective, not
Check temperature sensor Yes
and connections; check
the measuring device and
No
No
X
0C
X
0C
No
0C
80
No
No
80
Endress+Hauser
Liquisys M CPM223/253
Diagnostics and troubleshooting
Error
No.
E029
E030
E032
E033
E034
E041
E042
E043
E044
E045
E046
E047
E055
E057
Endress+Hauser
Display
Tests/remedial action
Alarm
contact
Error
current
Autom.
cleaning
start
PROFIBU
S
Status
Facty
Facty
Facty
PV 1)
User
User
User
Temp
connected or shortcircuited
measuring cable with a
temperature simulator if
necessary.
Check that correct option
is selected in field A5
Sensor self-test
The digital sensor
Yes
encountered an error
during the self-test. Check
the sensor and replace if
necessary.
No
Check reference electrode
for contamination and
damage; clean the
reference electrode.
Yes
No
Repeat calibration and
replace buffer solution; if
necessary, replace sensor
pH value zero point too and check the device and
measuring cable with a
low or too high
simulator.
No
ORP offset range
exceeded or below
range
No
SCS reference
electrode warning
Upper or lower pH
slope range exceeded
0C
0C
X
0C
No
0C
80
No
Calculation of
calibration parameters
aborted
Repeat calibration and
replace buffer solution;
replace sensor if
necessary, check device
and measuring cable.
No
Distance between
buffer value and zero
point (pH7) too small
(single-point
calibration)
For slope calibration, use
a buffer solution which
has at least a distance of
ΔpH = 2 to the electrode
zero point.
No
Distance between
buffer 1 and buffer 2
calibration values too
small (two-point
calibration)
Use buffer solutions
which differ by at least
Δ pH = 2.
No
Stability requirement
not met during
calibration
Repeat calibration and
replace buffer solution; if
necessary, replace sensor
and check the device and
measuring cable with a
simulator.
No
Calibration aborted
X
No
Parameter limits of
Correct the settings
current output 1 mixed
up
No
Parameter limits of
current output 2 mixed
up
No
Below main parameter Check measurement,
measuring range
control and connections
Yes
Main parameter
measuring range
exceeded
Yes
No
No
No
No
No
No
No
No
No
No
No
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
X
80
No
44
80
No
No
44
80
85
Diagnostics and troubleshooting
Error
No.
E059
E061
E063
E064
E065
E066
E067
E068
E069
E070
E080
E081
E085
E094
E100
E101
E102
E106
86
Liquisys M CPM223/253
Display
Alarm
contact
Error
current
Autom.
cleaning
start
PROFIBU
S
Status
Facty
Facty
Facty
PV 1)
User
User
User
Temp
Below temperature
measuring range
Yes
No
No
80
Temperature
measuring range
exceeded
Yes
Below current output
range 1
Tests/remedial action
44
Check measured value
and current assignment
Yes
Below current output
range 2
Yes
Current output range 2
exceeded
Yes
No
No
80
No
No
80
80
No
No
80
80
No
No
80
80
Check configuration
Yes
No
No
80
80
Set point exceeded
limit contactor 2
Yes
Set point exceeded
limit contactor 3
Yes
Set point exceeded
limit contactor 4
Yes
Current output 1 range Increase range in "Current
too small
outputs" menu.
Yes
Current output 2 range
too small
Yes
No
No
80
80
No
No
80
80
No
No
80
80
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
Incompatible sensor
version
Digital sensor and
transmitter not
compatible. Possibly, Ex
version of sensor is used
with non-Ex version of
transmitter or vice versa.
Yes
Current simulation
active
No
No
No
No
80
X
80
X
80
X
80
No
80
No
0C
0C
No
Switch off service function No
or switch device off and
then on again.
No
No
No
Wait for download to
finish.
X
80
Yes
Manual mode active
Download active
80
80
Yes
Service function active
No
44
Current output range 1
exceeded
Set point exceeded
limit contactor 1
No
No
No
X
80
X
80
X
80
X
80
X
80
X
80
X
80
Endress+Hauser
Liquisys M CPM223/253
Diagnostics and troubleshooting
Error
No.
E116
E127
E147
E152
E153
E154
E155
E156
E157
E162
E171
E172
E173
Display
Download error
Memosens powerfail;
sensor communication
present but sensor has
too little current
Tests/remedial action
Repeat download.
Check whether the
Memosens connection is
correctly inserted and
locked.
Alarm
contact
Error
current
Autom.
cleaning
start
PROFIBU
S
Status
Facty
Facty
Facty
PV 1)
User
User
User
Temp
X
80
X
0C
X
0C
No
0C
Yes
Yes
No
No
0C
Sensor communication Check that the sensor is
Yes
faulty
correctly connected, the
cable ends are correctly
wired at the terminals and
the cable is not damaged.
No
PCS alarm
No
Check sensor and
connection.
Yes
Calibration offset out
of limits
• Repeat calibration.
• Check the calibration
solutions if necessary.
• Replace sensor.
No
Below lower alarm
threshold for period
exceeding alarm delay
Perform manual
comparison measurement
if necessary. Service
sensor and recalibrate.
Yes
Above upper alarm
threshold for period
exceeding alarm delay
0C
No
44
No
No
80
80
No
No
X
X
Yes
No
No
X
X
Yes
Actual value exceeds
alarm threshold for
longer than the set
permissible maximum
period
Yes
Flow in main stream
too low or zero
0C
44
Actual value
undershoots alarm
threshold for longer
than the set
permissible maximum
period
Dosage stop
No
No
No
X
X
No
No
X
X
Check settings in the
CURRENT INPUT and
CHECK function groups.
Yes
Restore flow.
Yes
No
No
X
X
No
No
X
X
Switch-off limit for
Check process variables at Yes
current input exceeded sending measuring device.
Change range assignment
Current input < 4 mA if necessary.
Yes
No
No
X
X
No
No
X
X
E174
Current input > 20 mA
Yes
No
No
X
X
E175
Endress+Hauser
SCS glass warning
Check electrode for glass
breakage or hair-line
cracks;
check medium
temperature.
No
No
No
44
87
Diagnostics and troubleshooting
Error
No.
Liquisys M CPM223/253
Display
Tests/remedial action
Alarm
contact
Error
current
Autom.
cleaning
start
PROFIBU
S
Status
Facty
Facty
Facty
PV 1)
User
User
User
Temp
Measurement can
continue until the error
occurs.
E177
E180
1)
8.3
80
SCS reference
electrode warning
Check electrode for
contamination and
damage; clean electrode;
measuring can continue
until the error occurs.
No
Data error sensor
No measured value from
digital sensor. Sensor
possibly plugged in or
connected incorrectly; or
sensor is defective →
replace sensor.
Yes
No
No
44
80
No
No
0C
0C
PV = process variable, primary value
Process-specific errors
Use the following table to localize and rectify any errors occurring.
Error
Possible cause
Tests/remedial action
Tools, spare parts
Device cannot be
operated, display
value 9999
Operation locked
Press CAL and MINUS keys
simultaneously
See the "Key functions"
section
Measuring chain
zero-point cannot
be adjusted
Contaminated reference
system
Test with new sensor
pH/ORP sensor
Membrane clogged
Clean or grind membrane
HCl 3 %, use file (only file in
one direction)
Measuring line open
Short-circuit pH input on device
→ display pH 7
Asymmetric sensor
voltage too high
Clean junction or test with
another sensor
HCl 3 %, use file (only file in
one direction)
Incorrect potential
matching (PA/PM) for
transmitter ↔ medium
Asymm.: no PM or PM at PE
Symm.: PM connection
mandatory
See the "Measuring cables
and sensor connection"
section
Sensor fouled
Clean sensor
See the "Cleaning pH/ORP
electrodes" section
Sensor old
Replace sensor
New sensor
Sensor defective
(reference lead)
Replace sensor
New sensor
No internal buffer
Check KCl supply (0.8 bar above
medium pressure).
KCl (CPY 4-x)
Connection not at high
impedance (moisture,
dirt)
Check cable, plug connector and
junction boxes
pH simulator, insulation,
see the "Checking the
connecting lines and boxes"
section
Device input defective
Check device directly
pH simulator
Sensor old
Replace sensor
pH sensor
Hair-line crack in the
glass membrane
Replace sensor
pH sensor
No or slow change
of readings
Measuring chain
slope not
adjustable/slope
too small
Measuring chain
slope not
88
Endress+Hauser
Liquisys M CPM223/253
Diagnostics and troubleshooting
Error
Possible cause
Tests/remedial action
Tools, spare parts
adjustable/no
slope
Connection not at high
impedance (moisture,
dirt)
Check cable, plug connector and
junction boxes.
pH simulator, insulation,
see the "Checking the
connecting lines and boxes"
section
Constant, incorrect Sensor does not immerse Check installation position,
measured value
properly or protection cap remove protection cap.
not removed
Air pockets in assembly
Check assembly and orientation.
Grounding short at or in
device
Perform test measurement in
insulated vessel, with buffer
solution if applicable.
Plastic vessel, buffer
solutions
Hair-line crack in the
glass membrane
Replace sensor
pH sensor
Device in impermissible
Switch off device and switch it
operating condition (does on again.
not respond when key
pressed)
EMC problem: if this
persists, check the
grounding, shields and line
routing or have checked by
Endress+Hauser Service.
Wrong pH value in No/incorrect temperature ATC: activate function
process
compensation
MTC: set process temperature.
Incorrect
temperature value
Fluctuations in
measured value
Conductivity of medium
too low
Select pH sensor with liquid KCl.
e.g. Ceraliquid CPS41
Flow too high
Reduce flow or measure in a
bypass
Potential in medium
Possibly ground with or at PM
pin (connection PM/PE).
Problem mainly occurs in
plastic lines.
Sensor fouling or buildup
on sensor
Clean the sensor (see the
"Cleaning pH/ORP sensors"
section)
For heavily contaminated
media:
Use spray cleaning
Incorrect sensor
connection
Check connections using wiring
diagram.
Wiring diagram in
"Electrical connection"
section
Measuring cable
defective
Check cable for interruptions/
short-circuit/shunt.
Ohmmeter or local
simulation
Incorrect sensor type
Set type of temperature sensor
at the device (field B1)
Glass electrode: Pt 100
ISFET: Pt 1000
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
Measure symmetrically (with
PML)
Possibly ground medium
with PM/PE connection
No potential matching
Connect PM pin in assembly to
(PA/PM) for symmetrical device PA/PM
input
Endress+Hauser
Controller or timer No relay module
cannot be
available
activated
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
89
Diagnostics and troubleshooting
Error
Liquisys M CPM223/253
Possible cause
Tests/remedial action
Tools, spare parts
"Hold" function active
"Hold" dwell period too
long
“Auto hold” for calibration,
“Hold” input activated;
“Hold” active via keyboard
See fields S2 to S4
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
Cable disconnected or
short-circuited
Disconnect cable and measure
directly at device
Output defective
See the "Device-specific errors"
section
Fixed current
output signal
Current simulation active
Switch off simulation.
See field O2
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 Field O211
mA or 4–20 mA?
Total load in the current
loop too high (> 500 Ω)
Disconnect output and measure
directly at device
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, LSCH-x2 module, see the
if necessary replace the LSCH-x1 "Spare parts" section
module
Device with PROFIBUSPA
PA 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.
LSR1-4 module, see the
Chemoclean is enabled using the "Spare parts" section
release code supplied by the
manufacturer in the
Chemoclean retrofit kit.
To check the version, see the
nameplate
Plus Package
functions not
available
Plus Package not enabled • For Plus Package retrofit:
(enable by entering a
code is supplied by E+H →
code which depends on
enter this code.
the serial number and
• After replacing a defective
which is supplied by E+H
LSCH/LSCP module: first
when a Plus Package is
enter device serial number
ordered)
manually (see nameplate),
then enter the existing code
number.
For a detailed description,
see the "Replacement of
central module" section.
No HART or
PROFIBUS
communication
Several devices at the
same address
Check addresses and re-enter if
necessary
No communication possible
if several devices set to the
same address
No HART
communication
No HART central module
Verify using nameplate: HART = Upgrade to LSCH-H1 / -H2
-xxx5xx and -xxx6xx
No or incorrect DD
(device description)
For further information, see
BA00208C/07/EN, "HART field
communication with Liquisys
CxM223/253”
Controller/limit
contact works
continuously
No current output
signal
HART interface missing
mA meter 0–20 mA
mA meter for 0–20 mA DC
Current output < 4 mA
90
Endress+Hauser
Liquisys M CPM223/253
Diagnostics and troubleshooting
Error
Possible cause
Tests/remedial action
Tools, spare parts
Several devices set to
same address
Assign addresses correctly
No communication possible
if several devices set to the
same address
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
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
No PROFIBUS
communication
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
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
The voltage at the device's
(Bus voltage typ. 24 V DC PA/DP connector must be at
for non-Ex)
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
Endress+Hauser
91
Diagnostics and troubleshooting
Liquisys M CPM223/253
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 User (data for energy supply
nameplate data
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 Check ribbon cable, replace if
loose or defective
necessary
Display dark, light- Central module defective
emitting diode
(module: LSCH/LSCP)
active
Replace central module, note
version
Onsite diagnosis by Endress
+Hauser Service, test module
necessary
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
pH/mV 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 pH, ref and PM
directly at the device with
wire jumpers = reading pH 7
• 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
92
See the "Spare parts" section
Check whether 0–20 mA or 4–
20 mA is selected.
Endress+Hauser
Liquisys M CPM223/253
Maintenance
Error
Possible cause
Tests/remedial action
Execution, tools, spare
parts
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 Check ribbon cable seating,
loose or defective
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
For a detailed description,
SNR 0000, a device serial
see the "Replacement of
number can be entered once in central module" section.
fields E115 to E117.
Then enter the release codes for
the Plus Package and/or
Chemoclean if necessary.
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.
Wrong software
SW version, see field E111.
Bus problem
Remove some devices and
repeat the test.
9
Replace central module;
User or Endress+Hauser
Service.
Contact Endress+Hauser
Service.
Maintenance
LWARNING
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.
Endress+Hauser
93
Maintenance
Liquisys M CPM223/253
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.
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 pH/ORP electrodes
LCAUTION
Cleaning not switched off during calibration or maintenance activities
Risk of injury due to medium or cleaning agent
‣ If a cleaning system is connected, switch if off before removing a sensor from the
medium.
‣ If you wish to check the cleaning function and have therefore not switched off the
cleaning system, please wear protective clothing, goggles and gloves or take other
appropriate measures.
LCAUTION
Risk of injury from cleaning agents
‣ When using the following cleaning agents, make sure to protect your hands, eyes and
clothing.
Please clean contamination on the glass electrodes as follows:
• Oily and greasy films:
Clean with hot water or temperature-controller detergent (grease remover, e.g. alcohol,
acetone, possibly 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.
94
Endress+Hauser
Liquisys M CPM223/253
Maintenance
• 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.
• Fibers, suspended substances:
Pressurized water, surface-active agents if necessary
• Light biological buildup:
Pressurized water
ORP electrodes:
Carefully clean the metal pins or surfaces mechanically.
After mechanical cleaning, the ORP sensor can require several hours conditioning
time. For this reason, check the calibration after one day.
ISFET sensors
• Never use acetone to clean ISFET sensors as this could damage the material.
• After being cleaned with compressed air, ISFET sensors require approx. 5 to 8 minutes
until the closed-control loop is re-established and the measured value has adjusted to
the real value.
Clogged membranes can be cleaned mechanically under certain circumstances (does not
apply to ISFET sensors, Teflon membranes and open ring junction electrodes):
• Use a small warding file.
• Only file in one direction.
Air bubbles in the electrode:
• Air bubbles can indicate incorrect mounting. For this reason check the orientation.
• The range 15° to 165° to the horizontal is allowed (ISFET sensors are the exception).
• Not permitted: horizontal installation or installation with the plug-in head pointing
downwards.
> 15°
> 15°
A0027183
 46
Permitted angle of installation for glass electrodes
Check for reference system reduction
The inner reference lead of the reference system (Ag/AgCl) of a combination electrode or
a separate reference electrode is usually brownish and matt. A silver-colored reference
system is reduced and therefore defective. This is caused by a current flowing through the
reference element.
Possible causes for the current flow:
• Incorrect measuring device operating mode selected (PML pin connected, but operating
mode asymmetrical ("without PML"). See also the function description for "Selecting the
connection type".
• Shunt in measuring cable (e.g. due to moisture) between reference line and grounded
shield or PM line.
• Measuring device defective (shunt in reference input or entire input amplifier
downstream of PE).
9.1.3
1.
Endress+Hauser
Maintenance of digital sensors
If an error occurs or the maintenance schedule stipulates that the sensor has to be
replaced, use a new sensor, or a sensor that has been precalibrated in the laboratory.
A sensor is calibrated in the laboratory under optimum external conditions, thereby
ensuring better quality of measurement.
95
Maintenance
Liquisys M CPM223/253
2.
Remove the sensor to be serviced and install the new sensor.
3.
You must perform calibration if you use a sensor that is not precalibrated.
4.
The sensor data are automatically accepted by the transmitter. A release code is not
required.
5.
Measurement is resumed.
6.
Take the used sensor back to the laboratory. In the laboratory you can get the sensor
ready for reuse while ensuring the availability of the measuring point.
Regenerating digital sensors:
1.
Clean the sensor. For this purpose, use the cleaning agent specified in the sensor
manual.
2.
Inspect the sensor for cracks or other damage.
3.
If no damage is found, regenerate the sensor. Where necessary, store the sensor in a
regeneration solution (--> sensor manual).
4.
Recalibrate the sensor for reuse.
9.1.4
Liquid KCl supply
• The KCl must be free of bubbles. In the case of an unpressurized version, check whether
the cotton thread is present in the hose.
• In the case of counterpressure, check whether the pressure in the KCl tank is min. 0.8
bar (12 psi) above the medium pressure.
• The KCl consumption should be low but noticeable. Approx. 1 to 10 ml/day is typical.
• The opening for sensors with a KCl top-up opening at the glass shaft must be clear.
9.1.5
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.
9.1.6
Connecting cables and junction boxes
Check the cables and connections for moisture. Moisture is indicated by a sensor slope that
is too small. If nothing more can be displayed or if the display is fixed at pH 7, please check
the following components:
• Sensor head
• Sensor plug
• Junction box, if fitted
• Extension cable
NOTICE
Incorrect measurements caused by moisture in the measuring cable
‣ If there is moisture in the measuring cable, the cable must be replaced!
A shunt in the cable of > 20 MΩ cannot be measured with normal multimeters but is
damaging for the pH measurement. Connect a pH simulator instead of the sensor. The
value that is displayed on the transmitter must match the value set at the simulator. The
value can differ at the second decimal place at the very maximum.
96
Endress+Hauser
Liquisys M CPM223/253
Maintenance
If you do not have a pH simulator, you can test the cable with a commercially available
megohmmeter. Please note the following when performing the test:
• Make sure to disconnect the pH measuring cable from the sensor and device!
• If you are using a junction box, you should check the infeed and outfeed measuring cable
separately.
• Check the cable with 1000 V DC (at least with 500 V DC) testing voltage.
• If the cable is intact, the insulation resistance is > 100 GΩ.
• If the cable is defective (moist), there is flashover.
The cable must be replaced.
You can clean (desalinate) the sensor head and junction box with de-ionized water
and dry them with a hot air dryer.
Endress+Hauser
97
Repair
Liquisys M CPM223/253
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 422 b) from the rear of the device to de-energize
the device.
2.
Then disconnect the terminal blocks (item 422 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 pH/mV transmitter (item 230) as follows:
10. Bend the shielding plate up.
11. Disconnect the connected strand (pH input, strand comes from the BNC connection
jack).
12. Using a fine wire cutter, nip off the heads of the synthetic distance holders.
13. Then remove the module from above.
Assembly is the reverse of the disassembly sequence. Tighten the special screw fingertight without using a tool.
98
Endress+Hauser
Liquisys M CPM223/253
Repair
422a
422b
340
400
435
235
230
10/20
40
320
330
310
430
290/300
Pos. 10
Netzteil 100 – 230 VAC
10
Pos.
3030 / Steckbrücke
A
Sicherung
230 V
B
115 V
100 V
A0027295
 47
Exploded drawing of panel-mounted device
Endress+Hauser
99
Repair
Liquisys M CPM223/253
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.
10
Power unit
LSGA
100/115/230 V AC
51500317
20
Power unit
LSGD
24 V AC + DC
51500318
30
Jumper
40
Central module
LSCH-S1
1 current output
51501081
40
Central module
LSCH-S2
2 current outputs
51501082
40
Central module
LSCH-H1
1 current output + HART
51501083
40
Central module
LSCH-H2
2 current outputs + HART
51501084
40
Central module
LSCP
PROFIBUS PA/no current output
51501085
40
Central module
LSCP
PROFIBUS DP/no current output
51502503
40
Kit for CPM2x3 central LSCP-DP
module
PROFIBUS DP
PROFIBUS DP central module
Relay module + 2 relays
Curr. input + DP terminals
Hardware version 2.10 and higher
71134724
230
pH/mV transmitter
MKP1
pH/mV + temperature input
Glass electrode
51501080
230
pH/mV transmitter
MKP2
pH/mV + temperature input
ISFET sensor
51507096
230
pH/mV transmitter
MKP3
pH/mV + temperature input, glass electrode
ab Software-Version 2.55 HART, bzw. 2.33
PROFIBUS
51518244
230
Memosens transmitter MKD1
Digital input
51514966
235
pH/mV input
BNC connection jack + shielding plate
51501070
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
Current inp. + 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, Housing mechanical
340, 400 parts
Rear plate, side panel, end frame, special
screw
51501076
330, 400
Housing module
Housing with front membrane, sensory
tappets, seal, special screw, tensioning dogs,
connection plates and nameplates
51501075
340
End frame
Rear frame for PROFIBUS DP, with Dsubmin plug connector
51502513
for 340
PE terminal
PE terminal for shield grounding for IS
version
51501086
422a,
422b
Terminal strip set
Complete standard terminal strip set
+ HART
51501077
422a,
422b
Terminal strip set
Complete terminal strip set
PROFIBUS PA
51502125
422a,
422b
Terminal strip set
Complete terminal strip set
PROFIBUS DP
51502494
Terminal strip
Terminal strip for relay module
51501078
430
100
Part of power unit, item 10
Endress+Hauser
Liquisys M CPM223/253
Repair
Item
Kit description
435
Function/contents
Order no.
BNC connector
BNC easy solder-free, angled
50074961
A
Fuse
Part of power unit, item 10
B
Choice of line voltage
Position of jumper on power unit, item 10
depending on line voltage
10.3
Name
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.
4.
Open the display cover (item 410) and release the ribbon cable (item 310 / 320) on
the electronics box side (item 330).
5.
To remove the central module (item 40) release the screw in the display cover (item
450 b).
6.
Proceed as follows to remove the electronics box (item 330):
7.
Turn the screws in the housing base (item 450 a) by two revolutions to release them.
8.
Then push the entire box backwards and remove it from above while making sure
that the module locks do not open.
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 pH/mV transmitter (item 230) bend the shielding plate up.
12. Disconnect the connected strand (pH input, strand comes from the BNC connection
jack) and nip off the heads of the synthetic distance sleeves using a fine wire cutter.
13. Then remove the module from above.
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.
Endress+Hauser
101
Repair
Liquisys M CPM223/253
A
B
Pos. 10
Netzteil 100 – 230 V AC
10
3030 / Steckbrücke
Pos.
C
Sicherung
410
230 V
370
D
460b
115 V
100 V
40
450b
330
450a
310/320
400
460a
230
430
420
10/20
999
290/300
490
340
480
450c
470
A0027296
 48
102
Field device exploded drawing
Endress+Hauser
Liquisys M CPM223/253
Repair
The exploded drawing contains the components and spare parts of the field 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.
10
Power unit
LSGA
100/115/230 V AC
51500317
20
Power unit
LSGD
24 V AC + DC
51500318
30
Jumper
40
Central module
LSCH-S1
1 current output
51501081
40
Central module
LSCH-S2
2 current outputs
51501082
40
Central module
LSCH-H1
1 current output + HART
51501083
40
Central module
LSCH-H2
2 current outputs + HART
51501084
40
Central module
LSCP
PROFIBUS PA/no current output
51501085
40
Central module
LSCP
PROFIBUS DP/no current output
51502503
40
Kit for CPM2x3 central
module
PROFIBUS DP
LSCP-DP
PROFIBUS DP central module
Relay module + 2 relays
Curr. input + DP terminals
Hardware version 2.10 and higher
71134724
230
pH/mV transmitter
MKP1
pH/mV + temperature input
Glass electrode
51501080
230
pH/mV transmitter
MKP2
pH/mV + temperature input
ISFET sensor
51507096
230
pH/mV transmitter
MKP3
pH/mV + temperature input, glass
electrode
ab Software-Version 2.55 HART, bzw.
2.33 PROFIBUS
51518244
230
Memosens transmitter
MKD1
Digital input
51514966
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
Current inp. + 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
2 ribbon cable lines
51501074
Docking module, empty electronics box,
small parts
51501073
310, 320
Ribbon cable lines
340, 330, Inner housing fittings
450
450a,
450c
Torx screws K4x10
Part of inner housing fittings
450b
Torx screw for central
module
Part of inner housing fittings
410, 420, Housing cover
370, 430,
460
460a,
460b
Display cover, connection compartment
cover, front membrane, hinges, cover
screws, small parts
51501068
Cover screws
Part of housing cover
Hinges
2 pairs of hinges
51501069
400, 480
Housing base
Base, threaded joints
51501072
470
Terminal strip
Terminal strip for connection to power
supply
51501079
490
PE rail
PE connection rail for shield grounding
for IS version
51501087
430
Endress+Hauser
Part of power unit, item 10
103
Repair
Liquisys M CPM223/253
Item
Kit description
999
pH/mV terminal module
A
Electronics box with relay
module LSR1-x (bottom)
and power unit LSGA/
LSGD (top)
B
Fuse also accessible if
electronics box installed
C
Fuse
Part of power unit, item 10
D
Choice of line voltage
Position of jumper item 30 on power unit
item 10 depending on line voltage
10.4
Name
Function/contents
Order no.
ph/mV terminal + shielding plate
51501071
Replacing the central module
Generally, when a central module has been replaced, all data which can be changed
are set to the factory setting.
If possible, note the customized settings of the device, such as:
• Calibration data
• Current assignment, main parameter and temperature
• Relay function selections
• Limit value/controller settings
• Cleaning settings
• Monitoring functions
• Interface parameters
Proceed as described below if a central module is replaced:
1.
Disassemble the device as explained in the "Dismantling the panel-mounted
instrument" or "Dismantling the field instrument" section.
2.
Use the part number on the central module to check whether the new module has
the same part number as the previous module.
3.
Reassemble the device with the new module.
4.
Put the device back into operation and check the basic functions (e.g. measured value
and temperature display, operation via keyboard).
5.
Read the serial number (“ser-no.”) off the nameplate of the device (e.g.
6A345605G00) and enter this number in fields E115 (1st digit = year, one-digit (6
in the example)), E116 (2nd digit: month, one-digit (A in the example)), E117 (digits
3-6 cons. number, four-digit (3456 in the example)).
 In the field E118, the complete number is displayed again so you can check it is
correct.
You can only enter the serial number for new modules with the serial number 0000.
This can only be done once! For this reason, make sure the number entered is correct
before you press ENTER to confirm!
If an incorrect code is entered, the additional functions are not enabled. An incorrect
serial number can only be corrected at the factory!
104
1.
Press ENTER to confirm the serial number or cancel the entry to enter the number
again.
2.
If available, enter the release codes for the Plus Package and/or Chemoclean in the
"Service" menu.
3.
Check the Plus Package release (e.g. by opening the function group CHECK / Code P)
or the Chemoclean function.
4.
Make the customized device settings again.
Endress+Hauser
Liquisys M CPM223/253
Repair
10.5
Return
The product must be returned if repairs or a factory calibration are required, or if the
wrong product was ordered or delivered. As an ISO-certified company and also due to legal
regulations, Endress+Hauser is obliged to follow certain procedures when handling any
returned products that have been in contact with medium.
To ensure swift, safe and professional device returns, please read the return procedures
and conditions at www.endress.com/support/return-material.
10.6
Disposal
The device contains electronic components and must therefore be disposed of in
accordance with regulations on the disposal of electronic waste.
Observe the local regulations.
Endress+Hauser
105
Accessories
Liquisys M CPM223/253
11
Accessories
11.1
Sensors
11.1.1
pH glass electrodes
Orbisint CPS11D/ CPS11
• pH electrode for process technology
• Optional SIL version for connecting to SIL transmitter
• With dirt-repellent PTFE diaphragm
• Product Configurator on the product page: www.endress.com/cps11d or
www.endress.com/cps11
Technical Information TI00028C
Ceraliquid CPS41D/ CPS41
• pH electrode with ceramic junction and KCl liquid electrolyte
• Product Configurator on the product page: www.endress.com/cps41d or
www.endress.com/cps41
Technical Information TI00079C
Ceragel CPS71D/ CPS71
• pH electrode with double-chamber reference system and integrated bridge electrolyte
• Product Configurator on the product page: www.endress.com/cps71d or
www.endress.com/cps71
Technical Information TI00245C
Orbipore CPS91D/ CPS91
• pH electrode with open aperture for media with high dirt load
• Product Configurator on the product page: www.endress.com/cps91d or
www.endress.com/cps91
Technical Information TI00375C
Orbipac CPF81D/ CPF81
• Compact pH sensor for installation or immersion operation
• In industrial water and wastewater
• Product Configurator on the product page: www.endress.com/cpf81d or
www.endress.com/cpf81
• Product Configurator on the product page: www.endress.com/cpf81d
Technical Information TI00191C
11.1.2
pH ISFET sensors
Tophit CPS441D/ CPS441
• Sterilizable ISFET sensor for low-conductivity media
• Liquid KCl electrolyte
• Product Configurator on the product page: www.endress.com/cps441d or
www.endress.com/cps441
Technical Information TI00352C
106
Endress+Hauser
Liquisys M CPM223/253
Accessories
Tophit CPS471D/ CPS471
• Sterilizable and autoclavable ISFET sensor for food and pharmaceutics, process
engineering
• Water treatment and biotechnology
• Product Configurator on the product page: www.endress.com/cps471d or
www.endress.com/cps471
Technical Information TI00283C
Tophit CPS491D/ CPS491
• ISFET sensor with open aperture for media with high dirt load
• Product Configurator on the product page: www.endress.com/cps491d or
www.endress.com/cps491
Technical Information TI00377C
11.1.3
ORP sensors
Orbisint CPS12D/ CPS12
• ORP sensor for process technology
• Product Configurator on the product page: www.endress.com/cps12d or
www.endress.com/cps12
Technical Information TI00367C
Ceraliquid CPS42D/ CPS42
• ORP electrode with ceramic junction and KCl liquid electrolyte
• Product Configurator on the product page: www.endress.com/cps42d or
www.endress.com/cps42
Technical Information TI00373C
Ceragel CPS72D/ CPS72
• ORP electrode with double-chamber reference system and integrated bridge electrolyte
• Product Configurator on the product page: www.endress.com/cps72d or
www.endress.com/cps72
Technical Information TI00374C
Orbipore CPS92D/ CPS92
• ORP electrode with open aperture for media with high dirt load
• Product Configurator on the product page: www.endress.com/cps92d or
www.endress.com/cps92
Technical Information TI00435C
Orbipac CPF82D/ CPF82
• Compact ORP sensor for installation or immersion operation in process water and
wastewater
• Product Configurator on the product page: www.endress.com/cpf82d or
www.endress.com/cpf82
• Product Configurator on the product page: www.endress.com/cpf82d
Technical Information TI00191C
Endress+Hauser
107
Accessories
Liquisys M CPM223/253
11.1.4
Sensor simulators
Memocheck Plus CYP01D / Memocheck CYP02D / Memocheck Sim CYP03D
• Testing tools for analysis measuring points
• Simple, fast and reliable sensor simulation
• Product Configurator on the product page:
– www.endress.com/cyp01d
– www.endress.com/cyp02d
– www.endress.com/cyp03d
Technical Information TI00481C
11.2
Connection accessories
CPK9
For pH/ORP electrodes with TOP68 plug-in head
CPK1
For pH/ORP electrodes with GSA plug-in head
CPK2
For pH/ORP electrodes with GSA plug-in head, with three electrode connectors
CPK12
For pH glass electrodes and ISFET sensors with TOP68 plug-in head
Ordering information is available from your sales office or at www.endress.com.
CYK10 Memosens data cable
• For digital sensors with Memosens technology
• Product Configurator on the product page: www.endress.com/cyk10
Technical Information TI00118C
Measuring cable CYK81
• Unterminated cable for extending sensor cables (e.g. Memosens, CUS31/CUS41)
• 2 x 2 cores, twisted with shielding and PVC sheath (2 x 2 x 0.5 mm2 + shielding)
• Sold by meter, Order No.: 51502543
VBM
• Junction box for cable extension
• 10 terminal strips
• Cable entries: 2 x Pg 13.5 or 2 x NPT ½"
• Material: aluminum
• Degree of protection: IP 65
• Order numbers
– Cable entries Pg 13.5 : 50003987
– Cable entries NPT ½": 51500177
VBA
• Junction box for cable extension
• 10 terminal strips
• Cable entries: 2 x Pg 13.5, 2 x Pg 16
• Material: polycarbonate
• Degree of protection: IP 65
• Order number: 50005276
108
Endress+Hauser
Liquisys M CPM223/253
Accessories
11.3
Installation accessories
CYY101
• Weather protection cover for field devices
• Absolutely essential for field installation
• Material: stainless steel 1.4301 (AISI 304)
• Order No. CYY101-A
270 (10.6)
320 (12.6)
300 (11.8)
A0024627
 49
Dimensions in mm (inch)
Flexdip CYH112
• Modular holder system for sensors and assemblies in open basins, channels and tanks
• For Flexdip CYA112 water and wastewater assemblies
• Can be affixed anywhere: on the ground, on the capstone, on the wall or directly onto
railings.
• Stainless steel version
• Product Configurator on the product page: www.endress.com/cyh112
Technical Information TI00430C
30 (1.18)
Ø max. 60 (2.36)
M6
60 (2.36)
90 (3.54)
70 (2.76)
Ø 8 (0.31)
90 (3.54)
70 (2.76)
Ø 8 (0.31)
Post mounting kit
• For securing the field housing to horizontal and vertical posts and pipes
• Material: stainless steel 1.4301 (AISI 304)
• Order No. 50086842
Ø 6 (0.24)
70 (2.76)
90 (3.54)
A0024660
 50
Endress+Hauser
Dimensions in mm (inch)
109
Accessories
Liquisys M CPM223/253
11.4
Software and hardware add-ons
The add-ons can only be ordered by quoting the serial number of the device in question.
• Plus Package
Order No. 51500385
• Chemoclean function (requires four-relay card)
Order No. 51500963
• Two-relay card
Order No. 51500320
• Four-relay card
Order No. 51500321
• Two-relay card with current input
Order No. 51504304
• Four-relay card with current input
Order No. 51504305
11.5
Buffer solutions
High-quality buffer solutions from Endress+Hauser - CPY20
The secondary buffer solutions have been referenced to primary reference material of the
PTB (German Federal Physico-technical Institute) and to standard reference material of
NIST (National Institute of Standards and Technology) according to DIN 19266 by a DKD
(German Calibration Service) accredited laboratory.
Product Configurator on the product page: www.endress.com/cpy20
Technical buffer solutions for ORP electrodes
• +220 mV, pH 7, 250 ml; order no. CPY3-4
• +468 mV, pH 0.1, 250 ml; order no. CPY3-5
KCl electrolyte solutions for topping up liquid-filled pH/ORP electrodes
• 3.0 mol, T = -10 to 100 °C, 100 ml, Order No. CPY4-1
• 3.0 mol, T = -10 to 100 °C, 1000 ml, Order No. CPY4-2
• 1.5 mol, T = -30 to 100 °C, 100 ml, Order No. CPY4-3
• 1.5 mol, T = -30 to 100 °C, 1000 ml, Order No. CPY4-4
110
Endress+Hauser
Liquisys M CPM223/253
Technical data
12
Technical data
12.1
Input
Measured variables
pH value
ORP
Temperature
Measuring range
pH
ORP
Temperature
Pt 100
Pt 1000 (CPM2x3-IS)
NTC 30K (CPM2x3-IS)
0 to 14
–1500 to +1500 mV / 0 to 100 %
-50 to +150 °C (-60 to +300 °F)
-50 to +150 °C (-60 to +300 °F)
-20 to +100 °C (0 to +212 °F)
Input impedance
> 1012 Ω (under rated operating conditions) for standard sensors
Binary inputs
Voltage
Current consumption
Current input
4 to 20 mA, galvanically isolated
10 to 50 V
Max. 10 mA
Load: 260 Ω for 20 mA (voltage drop 5.2 V)
12.2
Output signal
Output
HART
Signal encoding
Frequency Shift Keying (FSK) + 0.5 mA via current output signal
Data transmission rate
1200 baud
Galvanic isolation
Yes
PROFIBUS PA
Signal encoding
Manchester Bus Powered (MBP)
Data transmission rate
31.25 kBit/s, voltage mode
Galvanic isolation
Yes (IO modules)
PROFIBUS DP
Signal on alarm
Endress+Hauser
Signal encoding
RS485
Data transmission rate
9.6 kBd, 19.2 kBd, 93.75 kBd, 187.5 kBd, 500 kBd, 1.5 MBd
Galvanic isolation
Yes (IO modules)
2.4 or 22 mA in the event of an error
111
Technical data
Liquisys M CPM223/253
Load
Max. 500 Ω
Transmission range
pH
ORP
Configurable, min. Δ 1 pH
Absolute
Relative
Temperature
Configurable, min. Δ 50 mV
Fixed, 0 to 100 %
Configurable, Δ 10 to Δ 100 % of end of
measuring range
Signal resolution
Max. 700 digits/mA
Minimum turndown of
output signal
10 % of the measuring range span
Separation voltage
Max. 350 VRMS / 500 V DC
Auxiliary voltage output
Output voltage
Output current
15 V ± 0.6 V
Max. 10 mA
Contact outputs
Switching current with ohmic load (cos φ = 1)
Switching current with inductive load (cos φ =
0.4)
Switching voltage
Switching power with ohmic load (cos φ = 1)
Switching power with inductive load (cos φ =
0.4)
Max. 2 A
Max. 2 A
Limit contactors
Pickup/dropout delay
0 to 2000 s
Controller
Function (configurable)
Controller behavior
Control gain Kp
Integral action time Tn
Derivative action time Tv
Period length for pulse length controller
Frequency for pulse frequency controller
Basic load
Pulse length/pulse frequency controller,
continuous controller
P, PI, PD, PID, basic load dosing
0.01 to 20.00
0.0 to 999.9 min
0.0 to 999.9 min
0.5 to 999.9 s
60 to 180 min-1
0 to 40 % of max. actuating variable
Function (switchable)
Alarm threshold adjustment range
Alarm delay
Monitoring time for lower limit violation
Monitoring time for upper limit violation
Latching/momentary contact
pH/temperature: entire measuring range
0 to 2000 s
0 to 2000 min
0 to 2000 min
Alarm
112
Max. 250 V AC, 30 V DC
Max. 500 VA AC, 60 W DC
Max. 500 VA AC, 60 W DC
Endress+Hauser
Liquisys M CPM223/253
Protocol-specific data
Technical data
HART
Manufacturer ID
11h
Device type
0091h
Transmitter-specific revision
0001h
HART version
5.0
Device description files (DD)
www.endress.com/hart
HART load (communication resistor)
250 Ω
Device variables
None (only dynamic variables PV and SV)
Supported features
-
PROFIBUS PA
Manufacturer ID
11h
Device type
1516h
Device revision
0001h
Profile version
2.0
GSD files
www.endress.com/profibus
GSD version
Output values
Primary value, temperature
Input variables
PCS display value
Supported features
Device lock: The device can be locked
using the hardware or software.
PROFIBUS DP
Manufacturer ID
11h
Device type
1520h
Profile version
2.0
GSD files
www.endress.com/profibus
GSD version
Endress+Hauser
Output values
Primary value, temperature
Input variables
PCS display value
Supported features
Device lock: The device can be locked
using the hardware or software.
113
Technical data
Liquisys M CPM223/253
12.3
Supply voltage
Power supply via fieldbus
Power supply
Depending on order version:
• 100/115/230 V AC +10/-15 %, 48 to 62 Hz
• 24 V AC/DC +20/-15 %
HART
Supply voltage
Not applicable, active current outputs
Reverse polarity protection
Not applicable, active current outputs
PROFIBUS PA
Supply voltage
9 V to 32 V, max. 35 V
Sensitivity to reverse polarity
No
FISCO/FNICO compliant according to IEC
60079-27
No
PROFIBUS DP
Supply voltage
9 V to 32 V, max. 35 V
Sensitivity to reverse polarity
Not applicable
FISCO/FNICO compliant according to IEC
60079-27
No
Power consumption
Max. 7.5 VA
Mains fuse
Fine-wire fuse, semi-delay 250 V/3.15 A
Circuit breaker
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.
‣ At the supply point, the power supply for the 24 V versions must be isolated from
dangerous live cables by double or reinforced insulation.
Cable specification
Cable length Memosens
Cable length analog sensors
Overvoltage protection
According to EN 61000-4-5
114
Max. 100 m (330 ft)
Max. 50 m (160 ft)
Endress+Hauser
Liquisys M CPM223/253
Technical data
12.4
Performance characteristics
Reference operating
conditions
Reference temperature:
25 ˚C (77 ˚F)
Measured value resolution
pH value
ORP
Temperature
0.01 pH
1 mV/0.1 %
0.1 °C
Maximum measured error
Display
pH
ORP
Temperature
Signal output
pH
ORP
Temperature
Max. 0.5 % of measuring range
Max. 0.5 % of measuring range
Max. 1.0 % of measuring range
Max. 0.75 % of measuring range
Max. 0.75 % of measuring range
Max. 1.25 % of measuring range
Measured errors in accordance with DIN IEC 746 Part 1, at rated operating conditions
Repeatability
Max. 0.2 % of measuring range
Zero point shift
Glass electrode
Antimony electrode
ISFET sensor
pH 5.0 to 9.0 (nominal pH 7.00)
pH -1.0 to 3.0 (nominal pH 1.00)
-500 to +500 mV
Slope adjustment
Glass electrode
Antimony electrode
ISFET sensor
38.00 to 65.00 mV/pH (nominal 59.16 mV/ pH)
25.00 to 65.00 mV/pH (nominal 59.16 mV/ pH)
38.00 to 65.00 mV/pH (nominal 59.16 mV/ pH)
Offset
pH
ORP
Temperature
±2 pH units
±120 mV/±50 %
±5 °C for adjusting the temperature display
12.5
Environment
Ambient temperature
range
-10 to +55 °C (+10 to +130 °F)
Storage temperature
–25 to +65 °C (-10 to +150 °F)
Electromagnetic
compatibility
Interference emission and interference immunity as per EN 61326-1:2006, EN
61326-2-3:2006
Endress+Hauser
115
Technical data
Liquisys M CPM223/253
Degree of protection
Field device
Panel-mounted device
Electrical safety
As per EN/IEC 61010-1:2010, overvoltage category II for installations up to
2000 m (6500 ft) above MSL
CSA
Device versions with CSA General Purpose approval are certified for indoor use.
Relative humidity
10 to 95%, not condensing
Degree of contamination
The product is suitable for pollution degree 2.
12.6
Dimensions
IP 65 / integrity according to NEMA 4X
IP 54 (front), IP 30 (housing)
Mechanical construction
Field device
L x B x D: 96 x 96 x 145 mm (3.78" x 3.78" x 5.71")
Installation depth: approx. 165 mm (6.50 ")
L x B x D: 247 x 170 x 115 mm (9.72" x 6.69" x 4.53")
Weight
Panel-mounted device
Field device
Max. 0.7 kg (1.54 lbs.)
Max. 2.3 kg (5.07 lbs.)
Materials
Panel-mounted device housing
Field housing
Front membrane
Polycarbonate
ABS PC FR
Polyester, UV-resistant
Terminals
Cable cross-section
Max. 2.5 mm2 (14 AWG)
116
Panel-mounted device
Endress+Hauser
Liquisys M CPM223/253
Appendix
13
Endress+Hauser
Appendix
117
Appendix
Liquisys M CPM223/253
Entry of absolute value
Function group
OFFSET
V
current measured value
-2.00...16 pH
-1500...1500 mV
0.0...100.0 %
V1
Enter reference
temperature
Function group
NUMERIC
CALIBRATION
25 °C
-20.0...150.0 °C
N
N1
CALIBRATION
o.k.
E--
Enter slope
Glass 59.18 mV/pH
38.00… 65.00 mV/pH
Antimon 59.18 mV/ pH
25.00 … 65.00 pH
ISFET 59.18 mV/pH
38.00 ... 65.00 mV/pH N2
Enter zero point
Glass 7.00 pH
5.00… 9.00 pH
Antimon 1.00 pH
–1.00 … 3.00 pH
ISFET 0 mV
-500 ... +500 V
C31
Redox %
calibration
Enter value of
redox buffer
Redox mV
calibration
current measured value
-1500 mV ... 1500 mV
C21
pH
calibration
C
25.0°C
-20.0...150.0°C
C11
V3
Store calibration
results
o.k.
E---
yes; no; new
N3
N4
Acceptance when stable at
≤ ± 5 mV for more than 5 s
Zero point is displayed
Acceptance when stable
≤ ± 1 mV for more than 5 s
-100...100 mV
Calibration status
is displayed
C24
Enter pH value of the
second buffer solution
Acceptance when stable at
≤ ± 0,05 pH for more
than 10 s
C12
C13
C36
yes; no; new
C23
Calibration
yes; no; new
C35
Store calibration
results
o.k.
E--
C22
Store calibration
results
o.k.
E--
C34
C33
Calibration
N5
Calibration status
is displayed
Calibration
-1500...1500 mV
C32
Buffer value of last
calibration;
0.00...14.00 pH
V4
Calibration status
is displayed
Calibration of 20%
value (non-toxic sample)
Enter pH value of
first buffer solution
Enter calibration
temperature
(if B3 = MTC)
Store offset results
yes; no; new
Acceptance when stable at
≤ ± 5 mV for more than 5 s
-1500...1500 mV
(displayed calibration
type options depend
on selection in A1)
Calibration status
is displayed
Calibration
Calibration of 80%
value (toxic sample)
Function group
Current offset is
displayed
0.00 pH, -2.00...2.00 pH
0 mV, -120...120 mV
0.0 %, -50.0...50.0 % V2
C25
Calibration
Acceptance when stable at
≤ ± 0,05 pH for more
than 10 s
Buffer value of last
calibration
0.00 pH...14.00 pH
C14
C15
Display of slope
Glass 59.16 mV/pH
38.00...65.00 mV/pH
Antimon 59.16 mV/pH
25.00...65.00 mV/pH
ISFET 59.16 mV/pH
38.00 … 65.00 mV/pH C16
Edit mode:
Code 22
Read mode:
any code
Temperature display
suppressed
Temperature display
in °F
MEAS. VALUE DISPLAY
Measured value display
in mV
Measured value display
Measured value display
Current input in %
Current input in mA
with
TEMPERATURE DISPLAY
in °C
1st error is displayed
Other errors are displayed
(if present)
(up to 10 errors)
Edit mode:
Code 22
Read mode:
any code
Function group
SETUP 1
Select operating mode
Select connection type
pH; ORP (mV);
ORP (%)
sym = symmetrical
asym = asymmetrical
A
Function group
SETUP 2
B
Function group
CURRENT INPUT
A1
A2
Select temperature
compensation
(for the process)
Enter MTC temperature
(if B1=MTC and A1=pH)
pH:
ATC;
MTC
25.0°C
-50.0 ... +150.0°C
Redox:
on
off
B1
Enter measured
value damping
ATC; MTC
Delay of controller
switch-off by current input
0s
B3
Delay of controller
switch-on by current input
0s
0 ... 2000 s
Glass (E0 = 7.0)
Antim = Antimon
ISFET
A4
Enter correct
process temperature
(if B1=ATC)
B2
Off; input
Z1
A3
Select temperature
compensation
(for the calibration)
Controller switch-off
by current input
Z
Select sensor
1 (no damping)
1-60
0 ... 2000 s
Z2
B4
B5
Feedforward control to
PID controller
Off; lin = linear
Low; high
0 ... 100%
Select table options
O3 (3)
Z6
Z5
Z4
read;
edit
Tab = table
0.0°C
-5.0...5.0°C
Switch-off direction
for current input
Switch-off limit value
for current input
Z3
Select characteristic
A5
Display of
temperature difference
(Offset)
25.0°C
-50.0°C ... +150.0°C
50%
Select temperature
sensor
Pt 100
Pt 1k
NTC 30K
Enter number of value
pairs in table
Select table
value pair
1
1...10
1
1... number of
table value pairs;
asign
O331
O332
O333
Enter simulation value
sim = simulation
O3 (2)
current value
0... 22,00 mA
O321
Select measured variable
for 2nd current output
Select current output
Function group
CURRENT OUTPUT
O
Function group
ALARM
F
Enter 0/4 mA value
Enter 20 mA value
4-20 mA; 0-20 mA
+2.00 pH; -2.00...16.00 pH
-1500 mV; -1500...1500 mV
0.0 %; 0.0...100.0 %
0.0°C; -50...150.0°C
O312
12.00 pH; -2.00...16.00 pH
1500 mV; -1500...1500 mV
100.0 %; 0.0...100 %
100.0°C; -50...150.0°C
O313
Set alarm contact
to be effective
lin = linear
°C; pH, mV; Contr
Out 1; Out 2
Select current range
O3 (1)
O2
O1
O311
Select contact type
Select alarm delay unit
Alarm delay
Set error current
Select error number
Latch = latching contact;
Momen = momentary cont.
F1
s; min
0 s (min)
0 s... 2000 s (min)
(depends on F2)
22 mA;
2,4 mA
1
1... 255
F2
F3
F4
yes; no
F5
F6
A0027498-EN
118
Endress+Hauser
Liquisys M CPM223/253
Appendix
Zero point is displayed
Glass 7.00 pH
5.00...9.00 pH
Antimon 1.00 pH
-1.00...3.00 pH
ISFET current value
–500...+500 mV
C17
Calibration status
is displayed
Store calibration
results
o.k.
E--
yes; no; new
C18
C19
Feedforward control = 1
at
50%
0 … 100%
Z7
Enter x value
(measured valued)
Enter y value
(current value)
0.00 pH; -2.00...16.00 pH
0 mV;-1500...1500 mV
0.0 %; 0.0...100.0 %
O334
0.00 mA
0.00...20.00 mA
Table status o.k.
yes; no
Activate error current for
previously set error
no; yes
F7
O335
Automatic start of
cleaning function
no; yes
(not always displayed
see error messages)
O336
Select "next error"
or return to menu
F8
next = next error;
←R
F9
Field for customer
settings
A0027499-EN
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119
Appendix
Liquisys M CPM223/253
Function group
P
SCS alarm threshold
SCS alarm
Reference sensor
(if A2=sym)
SCS alarm
Measuring sensor
CHECK
off; on
P1
off; on
P2
50 kΩ
1.5...50 kΩ
P3
Function R2 (6)
switch off or on
Limit contactor
configuration
Neutr =
R2 (6)
neutralisation controller
(with Rel1 and Rel2
and A1 = pH only)
off; on
R262
R251
Select start pulse
int = internal;
ext = external;
i+ext = internal +external;
i+stp = internal,
suppressed by ext
R252
Function R2 (4)
switch off or on
off; on
R2 (4)
off; on; basic; PID+B
LC °C =
Limit contactor T
LC PV =
Limit contactor
pH/Redox
Select contact to be
configured
RELAY
Rel1; Rel2; Rel3; Rel4;
Select language
Function group
SERVICE
ENG; GER
ITA; FRA
ESP; NEL
S
S1
Select module
Sens = sensor
E1(5)
E1(3)
R234
Enter pick-up delay
0s
0...2000 s
R224
R223
R222
Function R2 (1)
switch off or on
Select contact switch-on
point
Select contact switch-off
point
Enter pick-up delay
off; on
pH 16.00; pH -2.00...16.00
1500 mV; -1500...1500 mV
100.0 %; 0...100.0 %
R213
0s
0...2000 s
R211
16.00 pH; -2.00...16.00 pH
1500 mV; -1500...1500 mV
100.0 %; 0...100.0 %
R212
Enter hold
dwell period
Enter release code
for SW upgrade
(Plus package)
Enter release code for
SW upgrade
ChemoClean
Software version
Hardware version
off; on
10 s
0...999 s
S4
S3
Serial number
is displayed
0000
0000...9999
S5
R214
0000
0000...9999
S6
Module name
is displayed
HW version
E152
E153
Serial number
is displayed
Hardware version
SW version
E154
Module name
is displayed
HW version
E142
Software version
Hardware version
SW version
HW version
E143
Serial number
is displayed
Software version
Hardware version
SW version
HW version
E144
Module name
is displayed
E133
E132
Serial number
is displayed
E134
Module name
is displayed
E1(2)
E121
E123
E122
Software version
Hardware version
SW version
HW version
Serial number
is displayed
Contr = controller
Function group
E + H SERVICE
0.0 min
0.0...999.9 min
R233
R221
E131
Trans =
transmitter
R244
Enter integral action time
Tn (0.0 = no I component)
1.00
0.01...20.00
R232
150.0 °C
-50.0...+150.0°C
E141
MainB =
mainboard
120 min
1...3600 min
Enter control
gain Kp
Enter switch-off
temperature
Manual hold
Software version
E1(4)
Set minimum pause
time
R243
150.0 °C
-50.0...+150.0°C
E151
Rel = relay
R242
Enter switch-on
temperature
Hold configuration
s+c=during setup and
calibration
CAL=during calibration
Setup=during setup
none=no hold
S2
SW version
R254
R253
off; on
R2 (1)
R1
R
R264
10 s
0...999 s
Function R2 (2)
switch off or on
R2 (2)
Function group
0.0 min
0.0...999.9 min
Enter cleaning time
360 min
1...7200 min
R231
R2 (3)
Enter integral action time
Tn (0.0 = no I component)
30 s
0...999 s
Set pause time
pH 16.00; -2.00...16.00 pH
1500 mV; -1500...1500 mV
100.0 %; 0...100.0 %
P6
Enter pre-rinse time
30 s
0...999 s
Enter set point
Function R2 (3)
switch off or on
PID controller
0 min (s)
0 … 2000 min (s)
R263
Set rinse time
R241
P5
1.00
0.01...20.00
R261
off; on
Alarm delay
Off; Low; High;
LoHi; Lo!; Hi!; LoHi!
Enter control
gain Kp1 (or Kp2)
6.00 pH
-2.00...16.00 pH
R2 (5)
Timer
P4
0.0 … 9.9 mA
Set point 1 (or 2)
Function R2 (5)
switch off or on
Clean =
Chemoclean
(with Rel3 only)
Select process
monitoring
Leakage current is
displayed
(ISFET sensors only)
E124
Module name
is displayed
E1(1)
E111
E
Function group
INTERFACE
I
E112
E113
E114
Tag is displayed
Enter address
HART: 0...15
or PROFIBUS 1...126
@@@@@@@@
I1
I2
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Liquisys M CPM223/253
pH 16.00
pH -2 ... 16
pH -2 ... 16
Enter derivative action time
Tv (0.0 = no D componentl)
0.0 min
0.0...999.9 min
P12
Enter process type
0.3 s
0.1...5.0 s
Batch
Inlne
R266
R267
Set interval between two
cleaning cycles
(pause time)
R256
360 min
1...7200 min
Enter alarm threshold
(as an absolute value)
0s
0...2000 s
150.0 °C
-20.0...+150.0 °C
Enter number of cleaning
cycles without cleaning
agent
Enter minimum pause
time
120 min
1...R357 min
R257
R2610
R258
0
0...9
R259
Enter pulse interval
Enter maximum
pulse frequency
Enter minimum ON
time ton
Enter basic load
Ien = pulse length
freq = pulse frequency
curr = current output 2
10.0 s
0.5...999.9 s
120 1/min
60...180 1/min
0.3 s
0.1...5.0 s
0%
0 … 40%
R237
R238
R2310
R239
Enter process type
Batch
Inlne
R2311
R2312
LC status is displayed
MAX
MIN
R226
R225
R269
R268
Select
R236
Enter dropout delay
R227
Enter alarm threshold
(as an absolute value)
LC status is displayed
16.00 pH; -2.00...16.00 pH
1500 mV; -1500...1500 mV
100.0 %; 0...100.0 %
R216
MAX
MIN
Serial number is
displayed
S7
pH -2... 16
Enter minimum ON
time ton
R235
Order number
is displayed
pH 1.00
0 ... 2000 min
P11
120 1/min
60...180 1/min
dir = direct;
inv = inverted;
R215
120 min
0 ... 2000 min
P10
Enter maximum
pulse frequency
Select control
characteristic
0s
0...2000 s
60 min
10.0 s
0.5...999.9 s
0
0...5
Enter dropout delay
Set monitoring value
Enter pulse interval
R255
Enter derivative action
time Tv
(0.0 = no D component)
Set max. permi. period
of upper limit exceeded
len = pulse length
freq = pulse frequency
curr = current output 2
Set number of repeat
cycles
20 s
0...999 s
Set max. perm. period
of lower limit exceeded
Select
R265
Enter post-rinse time
P9
P8
P7
0.0 min
0.0...999.9 min
Select process
monitoring
Off; AC; CC; AC CC
AC!; CC!; ACCC!
Set upper alarm
threshold
Set lower alarm
threshold
pH -2.00
Appendix
S8
R217
Reset instrument to
default values
no;
Sens = sensor data;
Facty = factory settings.
S9
Perform instrument test
Select AC frequency
Reference voltage
is displayed
no; display
S10
S11
S12
A0027501-EN
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121
Index
Liquisys M CPM223/253
Index
A
Access codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Alarm contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Automatic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
B
Buffer solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Central module replacement . . . . . . . . . . . . . . . . . . 104
Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Cleaning
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Digital electrodes . . . . . . . . . . . . . . . . . . . . . . . . . 38
ISFET sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Connecting cables . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Current input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Current outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
D
Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Device configuration . . . . . . . . . . . . . . . . . . . . . . . . . 43
Device-specific errors . . . . . . . . . . . . . . . . . . . . . . . . . 91
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Digital sensors
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Disassembling
Field device . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Panel-mounted device . . . . . . . . . . . . . . . . . . . . . 98
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
E
E+H Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . 18
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
F
Feedforward control . . . . . . . . . . . . . . . . . . . . . . . . . 46
H
Hold function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
I
Incoming acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Installation conditions . . . . . . . . . . . . . . . . . . . . . . . . 13
Installation instructions . . . . . . . . . . . . . . . . . . . . . . . 15
122
Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
J
Junction boxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
K
Key functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
L
Liquid KCl supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Digital sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Maintenance of the entire measuring point . . . . . . . . 94
Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mechanical construction . . . . . . . . . . . . . . . . . . . . . 116
Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
N
Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Neutralization controller . . . . . . . . . . . . . . . . . . . . . . 64
Numeric calibration . . . . . . . . . . . . . . . . . . . . . . . . . . 82
O
Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Operating concept . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Operating elements . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
P
P(ID) controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Performance characteristics . . . . . . . . . . . . . . . . . . . 115
Post mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Post-connection check . . . . . . . . . . . . . . . . . . . . . . . . 30
Post-installation check . . . . . . . . . . . . . . . . . . . . . . . 17
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Process-specific errors . . . . . . . . . . . . . . . . . . . . . . . . 88
Product identification . . . . . . . . . . . . . . . . . . . . . . . . . 9
Q
Quick Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
R
Relay configuration . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Replacing the central module . . . . . . . . . . . . . . . . . . 104
Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
S
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Endress+Hauser
Liquisys M CPM223/253
Index
Sensor connection
With Memosens . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Without Memosens . . . . . . . . . . . . . . . . . . . . . . . 21
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Setup 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Setup 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
System error messages . . . . . . . . . . . . . . . . . . . . . . . 84
T
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Trouble shooting instructions . . . . . . . . . . . . . . . . . . 84
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
U
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
W
Wall mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Wiring diagram
With Memosens . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Without Memosens . . . . . . . . . . . . . . . . . . . . . . . 18
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