Endress+Hauser Ceramax CPS341D User manual

BA468C/07/EN/06.10
71116332
Operating Instructions
Ceramax CPS341D
Sensor with pH-sensitive enamel and
digital Memosens technology

Endress+Hauser
Ceramax CPS341D
Table of contents
1 Safety instructions . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . 5
1.4 Notes on safety conventions and icons . . . . 5
2 Identification . . . . . . . . . . . . . . 6
2.1 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Certificates and approvals . . . . . . . . . . . . . . 6
3 Installation . . . . . . . . . . . . . . . . 7
3.1 Overview of sensor . . . . . . . . . . . . . . . . . . 7
3.2 Installation conditions . . . . . . . . . . . . . . . . 8
3.3 Installing in the process . . . . . . . . . . . . . . 10
3.4 Installing the electrolyte vessel . . . . . . . . . 10
3.5 Mounting the optional electrolyte monitor 11
4 Wiring . . . . . . . . . . . . . . . . . . 12
4.1 Connecting the sensor . . . . . . . . . . . . . . . 12
4.2 Connecting the optional electrolyte monitor .
13
5 Commissioning. . . . . . . . . . . . 14
5.1 Disinfecting the electrolyte system . . . . . . 14
5.2 Regenerating the sensor . . . . . . . . . . . . . . 15
5.3 Filling the electrolyte vessel . . . . . . . . . . . 16
5.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Maintenance. . . . . . . . . . . . . . 19
6.1 Changing the electrolyte bottle . . . . . . . . . 19
6.2 Cleaning the sensor . . . . . . . . . . . . . . . . . 20
7 Accessories. . . . . . . . . . . . . . . 23
7.1 CPS341Z . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2 Transmitter . . . . . . . . . . . . . . . . . . . . . . . 23
7.3 Buffer solutions . . . . . . . . . . . . . . . . . . . . 24
7.4 Measuring cable . . . . . . . . . . . . . . . . . . . . 24
8 Troubleshooting . . . . . . . . . . . 25
8.1 Troubleshooting instructions . . . . . . . . . . 25
8.2 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . 25
8.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9 Technical data . . . . . . . . . . . . . 26
9.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.2 Environment . . . . . . . . . . . . . . . . . . . . . . 26
9.3 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.4 Mechanical construction . . . . . . . . . . . . . . 27
Index. . . . . . . . . . . . . . . . . . . . 28

Safety instructions Ceramax CPS341D
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The pH sensor is designed for the continuous measurement of the pH value in liquids.
Recommended applications include:
• Food production, including thick, high-viscosity media
• Beverage production and filling
• Quality control
• Pharmaceutical industry:
– Water treatment
– Active ingredient production
– Active ingredient preparation
– Fermentation
– Biotechnology
Any use other than that described here compromises the safety of persons and the entire
measuring system and is, therefore, not permitted.
The manufacturer is not liable for damage resulting from improper or non-designated use.
1.2 Installation, commissioning and operation
Please note the following items:
• Installation, commissioning, operation and maintenance of the measuring system must only
be carried out by trained technical personnel.
Trained personnel must be authorized for the specified activities by the system operator.
• Electrical connection must only be carried out by a certified electrician.
• Technical personnel must have read and understood these Operating Instructions and must
adhere to them.
• Before commissioning the entire measuring point, check all the connections. Ensure that
electrical cables and hose connections are not damaged.
• Do not operate damaged products and secure them against unintentional commissioning.
Mark the damaged product as being defective.
• Measuring point faults may only be rectified by authorized and specially trained personnel.
• If faults can not be rectified, the products must be taken out of service and secured against
unintentional commissioning.
• Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the service organization.

Ceramax CPS341D Safety instructions
Endress+Hauser 5
1.3 Operational safety
The sensor 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.
Relevant regulations and European standards have been observed.
As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local standards and regulations
1.4 Notes on safety conventions and icons
The structure, signal words and safety colors of the signs comply with the specifications of
ANSI Z535.6 ("Product safety information in product manuals, instructions and other collateral
materials").
Safety message structure Meaning
DANGER
!
Cause (/consequences)
Consequences if safety
message is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation will result in a fatal or serious
injury.
WARNING
!
Cause (/consequences)
Consequences if safety
message is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the situation can result in a fatal or serious
injury.
CAUTION
!
Cause (/consequences)
Consequences if safety
message is not heeded
►Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or medium
injury.
NOTICE
Cause/situation
Consequences if safety
message is not heeded
►Action/note
This symbol alerts you to situations that can result in damage
to property and equipment.

Identification Ceramax CPS341D
6Endress+Hauser
2 Identification
2.1 Nameplate
The nameplate can be found on the sensor.
The following information is provided on the nameplate:
• Order code
• Extended order code
• Serial number
• Protection class
• Ambient/process conditions
Compare the data on the nameplate with your order.
To find out what sensor version you have, enter the order code indicated on the nameplate
in the search screen at the following address: www.products.endress.com/order-ident
2.2 Certificates and approvals
Declaration of Conformity
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 4mark.

Ceramax CPS341D Installation
Endress+Hauser 7
3 Installation
3.1 Overview of sensor
The CPS341D can be divided into the following parts:
• pH-sensitive part
• Reference system
• Process connection
pH-sensitive part Reference system Process connection
• Glass-lined steel tube (3)
• Yellow pH-sensitive enamel with
metal reference lead (5)
•Diaphragm(4)
• Memosens plug-in head (1)
• Electrolyte vessel (8)
• Electrolyte bottle with septum (9)
• Supply of electrolyte with hose and
plug-in couplings (2 and 11)
• Reference electrode (in sensor head,
not visible from the outside)
Depends on version
•M20
• Pg 13.5
•3/4"
•1"
•NozzleDN25
•NozzleDN30
•VariventDN50/40
• Sanitary fitting DN50
• Sanitary fitting DN25
•Tri-ClampDN50
a0014135
Fig. 1:
1 Memosens plug-in head
2 Supply of electrolyte
3 Glass-lined steel tube
4Diaphragm
5 pH-sensitive enamel
(yellow)
6 Process connection
7Vent
a0014136
Fig. 2:
8 Electrolyte vessel
9 Electrolyte bottle
10 Compressed air connection
11 Electrolyte hose
12 Electrolyte supply coupling
12
7
3
45
6
89
10
11
12

Installation Ceramax CPS341D
8Endress+Hauser
3.2 Installation conditions
3.2.1 Orientation
The CPS341D can be installed in any position.
a0013862
Fig. 3: Installation angle
0 ... 360°

Ceramax CPS341D Installation
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3.2.2 Dimensions
a0013874
Fig. 4: Dimensions

Installation Ceramax CPS341D
10 Endress+Hauser
3.3 Installing in the process
NOTICE
Built-in parts can damage the sensor enamel
►When installing in tanks and pipes, keep a sufficient distance from built-in parts and the wall.
Screw the sensor directly into an existing process connection.
3.4 Installing the electrolyte vessel
a0014069
Fig. 5: Electrolyte vessel
1
2
3
4
5
Clamp
Electrolyte bottle
Mounting plate
Ground terminal
G1/4 compressed air connection
6
7
8
9
Self-sealing connector with electrolyte hose
Self-sealing coupling
Cannula
Septum