Endress+Hauser ISEmax CAS40D Bedienungsanleitung
Products Solutions Services
Operating Instructions
ISEmax CAS40D
Ion-selective sensor for continuous measurement of
ammonium, nitrate and other ions
BA00491C/07/EN/05.20
71505793
2020-11-27
ISEmax CAS40D Table of contents
Endress+Hauser 3
Table of contents
1 About this document ................ 4
1.1 Warnings ............................ 4
1.2 Symbols .............................. 4
2 Basic safety instructions ............ 5
2.1 Requirements for personnel ............... 5
2.2 Designated use ........................ 5
2.3 Workplace safety ....................... 5
2.4 Operational safety ...................... 6
2.5 Product safety ......................... 6
3 Incoming acceptance and product
identification ....................... 7
3.1 Incoming acceptance .................... 7
3.2 Product identification .................... 7
3.3 Scope of delivery ....................... 8
3.4 Certificates and approvals ................ 8
4 Installation ........................ 9
4.1 Installation conditions ................... 9
4.2 Mounting the sensor ................... 10
4.3 Installation example ................... 12
4.4 Post-installation check .................. 13
5 Electrical connection .............. 14
5.1 Connecting the sensor .................. 14
5.2 Connecting additional electrodes in the
sensor .............................. 14
5.3 Ensuring the degree of protection .......... 15
5.4 Post-connection check .................. 15
6 Commissioning .................... 15
7 Operation ......................... 16
7.1 Adapting the measuring device to the process
conditions ........................... 16
8 Diagnostics and troubleshooting ... 22
9 Maintenance ...................... 23
9.1 Maintenance schedule .................. 23
9.2 Cleaning the membrane ................. 23
9.3 Replacing membrane cap and electrolyte .... 23
10 Repair ............................ 26
10.1 Spare parts .......................... 26
10.2 Return .............................. 27
10.3 Disposal ............................ 27
11 Accessories ....................... 28
11.1 Assembly holder ...................... 28
11.2 Maintenance kits ...................... 28
11.3 Electrodes ........................... 28
11.4 Standard solutions ..................... 28
11.5 Compressed air cleaning ................ 29
12 Technical data .................... 30
12.1 Input ............................... 30
12.2 Performance characteristics .............. 30
12.3 Environment ......................... 31
12.4 Process ............................. 31
12.5 Mechanical construction ................ 31
Index .................................. 33
About this document ISEmax CAS40D
4 Endress+Hauser
1 About this document
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation will result in a fatal or serious
injury.
LWARNING
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid the dangerous situation can result in a fatal or serious
injury.
LCAUTION
Causes (/consequences)
If necessary, Consequences of
non-compliance (if applicable)
‣Corrective action
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or more serious injuries.
NOTICE
Cause/situation
If necessary, Consequences of
non-compliance (if applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to
property.
1.2 Symbols
Symbol Meaning
Additional information, tips
Permitted or recommended
Not permitted or not recommended
Reference to device documentation
Reference to page
Reference to graphic
Result of a step
ISEmax CAS40D Basic safety instructions
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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.
• Faults at the measuring point may only be rectified by authorized and specially trained
personnel.
Repairs not described in the Operating Instructions provided must be carried out only
directly at the manufacturer's site or by the service organization.
2.2 Designated use
The ion-selective sensor is designed for measuring tasks in the activated sludge basin and
in the inlet to the activated sludge basin of municipal sewage treatment plants.
The following parameters can be monitored and regulated depending on the device
version:
• Nitrate
• Ammonium
• Potassium (also to compensate ammonium)
• Chloride (also to compensate nitrate)
• pH value
• ORP
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 Workplace 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 international standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.
Basic safety instructions ISEmax CAS40D
6 Endress+Hauser
2.4 Operational safety
Before commissioning the entire measuring point:
1. Verify that all connections are correct.
2. Ensure that electrical cables and hose connections are undamaged.
3. Do not operate damaged products, and protect them against unintentional operation.
4. Label damaged products as defective.
During operation:
‣If faults cannot be rectified:
products must be taken out of service and protected against unintentional operation.
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 it 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, wear protective clothing, goggles and gloves or take other appropriate
measures.
2.5 Product safety
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
international standards have been observed.
ISEmax CAS40D Incoming acceptance and product identification
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3 Incoming acceptance and product
identification
3.1 Incoming acceptance
1. Verify that the packaging is undamaged.
Notify the supplier of any damage to the packaging.
Keep the damaged packaging until the issue has been resolved.
2. Verify that the contents are undamaged.
Notify the supplier of any damage to the delivery contents.
Keep the damaged goods until the issue has been resolved.
3. Check that the delivery is complete and nothing is missing.
Compare the shipping documents with 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.
Make sure to comply with the permitted ambient conditions.
If you have any questions, please contact your supplier or your local Sales Center.
3.2 Product identification
3.2.1 Nameplate
The nameplate provides you with the following information on your device:
• Manufacturer identification
• Order code
• Extended order code
• Serial number
• Ambient and process conditions
• Input and output values
• Safety information and warnings
‣Compare the information on the nameplate with the order.
3.2.2 Product identification
Product page
www.endress.com/cas40d
Interpreting the order code
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 www.endress.com.
2. Call up the site search (magnifying glass).
3. Enter a valid serial number.
4. Search.
The product structure is displayed in a popup window.
Incoming acceptance and product identification ISEmax CAS40D
8 Endress+Hauser
5. Click on the product image in the popup window.
A new window (Device Viewer) opens. All of the information relating to your
device is displayed in this window as well as the product documentation.
3.3 Scope of delivery
The scope of delivery comprises:
• 1 sensor, version as ordered
• 1 socket wrench
• 1 tube silicone grease
• 1 Operating Instructions
3.4 Certificates and approvals
3.4.1 mark
Declaration of Conformity
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EU directives. The manufacturer confirms
successful testing of the product by affixing to it the mark.
3.4.2 EAC
The product has been certified according to guidelines TP TC 004/2011 and TP TC
020/2011 which apply in the European Economic Area (EEA). The EAC conformity mark
is affixed to the product.
ISEmax CAS40D Installation
Endress+Hauser 9
4 Installation
4.1 Installation conditions
4.1.1 Dimensions
50 (1.97)
Ø112 (4.41)
198 (7.8)
50.6 (1.99)
610 (24.0)
100 (3.94) 43 (1.69)
364 (14.3)
8
A0015207
1 Dimensions in mm (inch)
4.1.2 Mounting location
Choose a mounting location that can be easily accessed at a later stage.
‣Ensure that upright posts and assemblies are fully secured and vibration-free.
Installation ISEmax CAS40D
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4.2 Mounting the sensor
4.2.1 Electrode installation
NOTICE
Electrode protection caps not used or incorrectly used
Drying out of pH electrode or damage to ion-selective membrane
‣Remove the protection cap from the pH electrode before immersing the sensor in the
medium.
‣Set the protection cap aside.
‣If you remove the sensor from the medium for more than 20 minutes, place the
protection cap filled with 1‑3 M KCl solution back on the pH electrode. This prevents
the electrode from drying out.
‣pH electrodes that have dried out due to incorrect storage can be made ready for
measurement again by leaving them in 3 M KCl solution for up to 12 hours.
‣The ion-selective electrodes do not have a protection cap. Never put one of these caps
on the electrodes.
All electrodes are installed and wired in the factory in accordance with the version
ordered.
Installing an additional electrode (optional)
A0015225
2 Release protection
guard
A0015226
3 Remove coupling
nut
A0015227
4 Release cable
SW17
A0015229
5 Remove electrode
1. Release the protection guard and remove (→ 2, 10).
2. Unscrew the coupling nut (→ 3, 10).
3. Remove the electrode holder from the sensor.
4. Release the electrode cable on a dummy electrode (placeholder, must be present to
ensure tight sealing → 4, 10).
5. Remove the dummy electrode using a socket wrench, AF17 (→ 5, 10).
6. Install the new electrode in the free space.
7. Tighten the electrode hand-tight with the socket wrench, AF17.
8. Connect the electrode connector.
9. Pay attention to the color coding of the electrodes and the labeling of the cable. Refer
to the following table for this purpose → 11.
10. Carefully push the electrode holder and the air hose back into the sensor.
11. Screw on the coupling nut followed by the protection guard.
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