Endress+Hauser ISEmax CAM40 User manual

BA427C/07/en/04.08
71072748
Operating Instructions
ISEmax CAM40/CAS40
Ion selective electrode system

Endress+Hauser
ISEmax CAM/CAS40
Table of contents
1 Safety instructions . . . . . . . . . . 4
1.1 Designated use . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning and operation . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . 4
1.4 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Notes on safety icons and symbols . . . . . . . 5
1.6 Cross references and other symbols . . . . . . 5
2 Identification . . . . . . . . . . . . . . 6
2.1 Device designation . . . . . . . . . . . . . . . . . . . 6
2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . 7
2.3 Certificates and approvals . . . . . . . . . . . . . . 7
3 Installation . . . . . . . . . . . . . . . . 8
3.1 Incoming acceptance, transport, storage . . . 8
3.2 Installation conditions . . . . . . . . . . . . . . . . 8
3.3 Installation instructions . . . . . . . . . . . . . . . 9
3.4 Installation example . . . . . . . . . . . . . . . . . 10
3.5 Post-installation check . . . . . . . . . . . . . . . 11
4 Wiring . . . . . . . . . . . . . . . . . . 12
4.1 Electrical connection to the transmitter . . 12
4.2 Sensor connection . . . . . . . . . . . . . . . . . . 12
4.3 Post-connection check . . . . . . . . . . . . . . . 13
5 Operation . . . . . . . . . . . . . . . . 14
5.1 Human interface . . . . . . . . . . . . . . . . . . . 14
5.2 Operating concept . . . . . . . . . . . . . . . . . . 14
5.3 Local operation . . . . . . . . . . . . . . . . . . . . 15
6 Commissioning. . . . . . . . . . . . 31
6.1 Function check . . . . . . . . . . . . . . . . . . . . 31
6.2 Switching on . . . . . . . . . . . . . . . . . . . . . . 31
6.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . 32
7 Maintenance. . . . . . . . . . . . . . 35
7.1 Maintenance schedule . . . . . . . . . . . . . . 35
7.2 Cleaning the membrane . . . . . . . . . . . . . 35
7.3 Replacing the membrane cap and electrolyte
35
8 Accessories. . . . . . . . . . . . . . . 37
8.1 Installation accessories . . . . . . . . . . . . . . . 37
8.2 Maintenance kits . . . . . . . . . . . . . . . . . . . 39
8.3 Electrodes . . . . . . . . . . . . . . . . . . . . . . . . . 39
8.4 Standard solution . . . . . . . . . . . . . . . . . . . 39
8.5 Air compressor . . . . . . . . . . . . . . . . . . . . . 39
9 Trouble-shooting. . . . . . . . . . . 40
9.1 Trouble-shooting instructions . . . . . . . . . . 40
9.2 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . 40
9.3 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 41
10 Technical data . . . . . . . . . . . . . 42
11 Operating structure. . . . . . . . . 43
Index. . . . . . . . . . . . . . . . . . . . 44

Safety instructions ISEmax CAM/CAS40
4Endress+Hauser
1 Safety instructions
1.1 Designated use
The ion-selective electrode system is designed for measuring tasks in the activated sludge basin
of municipal sewage treatment plants.
The following parameters can be monitored depending on the device version:
•Nitrate
• Ammonium
• Potassium (to compensate ammonium)
• Chloride (to compensate nitrate)
• pH value
Any other use than the one described here compromises the safety of persons and the entire
measuring system and is, therefore, not permitted.
The manufacturer is not liable for damage caused by improper or non-designated use.
1.2 Installation, commissioning and operation
Please note the following items:
• Installation, commissioning, operation and maintenance of the measuring system must only
be carried out by trained technical personnel.
The technical personnel must be authorized for the specified activities by the system operator.
• Electrical connection must only be carried out by a certified electrician.
• Technical personnel must have read and understood these Operating Instructions and must
adhere to them.
• Before commissioning the entire measuring point, check all the connections for
correctness. Ensure that electrical cables and hose connections are not damaged.
• Do not operate damaged products and secure them against unintentional
commissioning. Mark the damaged product as being defective.
• Measuring point faults may only be rectified by authorized and specially trained
personnel.
• If faults can not be rectified, the products must be taken out of service and secured against
unintentional commissioning.
• Repairs not described in these Operating Instructions may only be carried out at the
manufacturer’s or by the service organization.
1.3 Operational safety
The sensor has been designed and tested according to the state of the art and left the factory in
perfect functioning order.
Relevant regulations and European standards have been met.
As the user, you are responsible for complying with the following safety conditions:
• Installation instructions
• Local prevailing standards and regulations.

ISEmax CAM/CAS40 Safety instructions
Endress+Hauser 5
1.4 Return
The CAM40 or CAS40 is repaired on site.
Contact your Endress+Hauser Service.
1.5 Notes on safety icons and symbols
1.6 Cross references and other symbols
#
Warning!
This symbol alerts you to hazards. They can cause serious damage to the instrument
or to persons if ignored.
"
Caution!
This symbol alerts you to possible faults which could arise from incorrect operation.
They could cause damage to the instrument if ignored.
!Note!
This symbol indicates important items of information.
È ä 1 This symbol indicates a cross reference to a defined page (e.g. p. 1).
È å 2 This symbol indicates a cross reference to a defined figure (e.g. fig. 2).
Additional information, tips
Permitted or recommended
Forbidden or not recommended
An explanatory video-clip for the topic in question is provided on the original CD.

Identification ISEmax CAM/CAS40
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Nameplate
2.1.2 Product structure
Transmitter CAM40
a0009824
Fig. 1: Example for CAM40
a0009825
Fig. 2: Example for CAS40
Power supply
A 100 - 240 VAC; 50/60 Hz
Signal output
1 4 x 0/4 - 20 mA
CAM40- Complete order code
70839 Gerlingen, Germany
ISEmax CAM40
Ser.No.:
CAM40-A1
12345678I01
Outputs: 4x0/4-20 mA
Mains: 100-240V AC,
48/62Hz, max.60VA
IP54
-20 ..+50°C
Channels: max. 2x CAS40
Contacts: 5 relays, max. 5A,
max. 250V AC
Order Code:
Ambient temp:
70839 Gerlingen, Germany
ISEmax CAS40
Order Code:
Serial No.:
CAS40-B2B1
A234EF05I00
IP68
Process temp.: 0 ... +60°C
Meas. range 2 NO3-N: 0,5 - 1000 mg/l
Meas. range 1 NH4-N: 0,1 - 1000 mg/l

ISEmax CAM/CAS40 Identification
Endress+Hauser 7
Sensor CAS40
2.2 Scope of delivery
The scope of delivery comprises:
• 1 transmitter
• 1 sensor (version as per nameplate)
• 1 set of Brief Operating Instructions
• 1 set of Operating Instructions on CD-ROM
If you have any questions, please contact your supplier or your sales center responsible.
2.3 Certificates and approvals
Declaration of conformity
The product meets the requirements of the harmonized European standards. It thus complies
with the legal requirements of the EC directives.
The manufacturer confirms successful testing of the product by affixing the 4symbol.
Application
A Aeration basin, nitrification, denitrification, with reference electrode
B Inlet aeration basin, with pH compensation (only ammonium)
Ion-selective parameter
1 Ammonium + nitrate
2 Ammonium
3Nitrate
Compensation electrode
ANone
B Potassium (only ammonium)
C Chloride (only nitrate)
Cable length
110m(33ft)
9 Special version, to be specified
CAS40- Complete order code

Installation ISEmax CAM/CAS40
8Endress+Hauser
3 Installation
3.1 Incoming acceptance, transport, storage
• Make sure the packaging is undamaged!
Inform the supplier about damage to the packaging. Keep the damaged packaging until the
matter has been settled.
• Make sure the contents are undamaged!
Inform the supplier about damage to the delivery contents. Keep the damaged products until
the matter has been settled.
• Check that the scope of delivery is complete and agrees with your order and the shipping
documents.
• The packaging material used to store or to transport the product must provide shock
protection and humidity protection. The original packaging offers the best protection. Also,
keep to the approved ambient conditions (see "Technical data").
• If you have any questions, please contact your supplier or your sales center responsible.
3.2 Installation conditions
a0009592
Fig. 3: CAM40 dimensions
256 (10.1)
157 (6.18)
216 (8.50)
112 (4.41)
122 (4.80)
70 (2.76)
mm (inch)

ISEmax CAM/CAS40 Installation
Endress+Hauser 9
3.3 Installation instructions
"Caution!
• Select a measuring place that is easily accessible so that no hazards for operating staff can
occur.
• Select a measuring place with representative concentration levels.
• If mounting the transmitter outdoors, you must use a weather protection cover which you can
order as an accessory.
1. Secure the transmitter to an upright post, a railing or a wall.
2. Mount the sensor using the optional bracket. The sensor must be immersed in the medium
over approx. 30 cm (12").
3. Route the cables in such a way that no mechanical damage or interference influences can
arise from other cables.
4. Connect the compressed air to the sensor.
a00095923
Fig. 4: CAS40 dimensions
75 (2.95)
107 (4.21) 43 (1.69)
360 (14.2) 660 (26.0)
12 (0.47)
107 (4.21)
64 (2.52)
mm (inch)
6 (0.24)

Installation ISEmax CAM/CAS40
10 Endress+Hauser
3.4 Installation example
A complete measuring system comprises:
• CAM40 transmitter
• CAS40 sensor
– Ion-selective electrode(s) for ammonium and/or nitrate
– Reference electrode
– Ion-selective electrode for compensating cross-interference
– pH glass electrode
Optional
• Upright post with boom
• Wall retainer
• Weather protection cover - absolutely essential if mounting the transmitter outdoors!
• Compressor (if no compressed air is available on site)
a0009239
Fig. 5: Example: measuring system on basin rim
1
2
CAM40 transmitter
Upright post with weather protection
cover
3
4
CAS40 sensor
Compressed air supply (cleaning)
12
3
4