Endress+Hauser CE 4 User manual

BA 160R/09/en/08.03
51006364 CE 4
Measurement station
Operating instructions

CE 4
2Endress+Hauser
Short overview
For quick and simple commissioning.
Safety notes ⇒Chap. 1, Page 4
⇓
Step 1: Install measurement station ⇒Chap. 3, Page 7
In this chapter the foundation template, installation levels and hose
installation and measurement station installation can be found.
⇓
Step 2: Wire measurement station ⇒Chap. 4, Page 12
Here hints how to wire and electrical connect the measurement
station can be found.
⇓
Step 3: Operating and set-up of the measurement station ⇒Chap. 5, Page 13
The operation of individual components can be found in the
respective operating manuals!
⇓
Step 4: Commissioning the measurement station ⇒Chap. 6, Page 15
Here the mothod for initial and re-commissioning of the
measurement station can be found.
⇓
Step 5: Maintenance and cleaning of the measurement station ⇒Chap. 7, Page 17
Here the procedure for manual and automatic cleaning of the
measurement station can be found.

CE 4 Endress+Hauser
Endress+Hauser 3
Table of contents
1 Safety instructions . . . . . . . . . . . . . . 4
1.1 Correct use . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 Installation, commissioning, operation . . . . . . 4
1.3 Operational safety . . . . . . . . . . . . . . . . . . . . . . 4
1.4 Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.5 Safety pictograms and symbols . . . . . . . . . . . 5
2 Identification . . . . . . . . . . . . . . . . . . . 6
2.1 Device designation . . . . . . . . . . . . . . . . . . . . . 6
2.2 Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Certificates and approvals . . . . . . . . . . . . . . . . 6
3 Mechanical installation . . . . . . . . . . 7
3.1 Delivery, transport, storage . . . . . . . . . . . . . . . 7
3.2 Installation conditions . . . . . . . . . . . . . . . . . . . 8
3.3 Mechanical installation . . . . . . . . . . . . . . . . . 10
3.4 Check installation . . . . . . . . . . . . . . . . . . . . . . 12
4 Electrical connection . . . . . . . . . . . 12
4.1 Wiring the measurement station . . . . . . . . . . 12
4.2 Screening and potential compansation . . . . . 12
4.3 Ingress protection . . . . . . . . . . . . . . . . . . . . . 12
4.4 Checking the connections . . . . . . . . . . . . . . . 13
5 Operation . . . . . . . . . . . . . . . . . . . . . 13
5.1 Communication and data security . . . . . . . . . 13
6 Commissioning . . . . . . . . . . . . . . . . 15
6.1 Installation check . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Commissioning the measurement station . . . 15
6.3 Device set-up . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Maintenance and cleaning . . . . . . 16
7.1 Manual cleaning of the measurement system 16
7.2 Sensor control and cleaning . . . . . . . . . . . . . 16
7.3 Operating the cleaning system . . . . . . . . . . . 17
7.4 Maintenance plan . . . . . . . . . . . . . . . . . . . . . 25
8 Accessories . . . . . . . . . . . . . . . . . . . 25
8.1 Accessories for the measurement station . . . 25
9 Fault-finding . . . . . . . . . . . . . . . . . . 25
9.1 Fault-finding instructions . . . . . . . . . . . . . . . . 25
9.2 Process fault messages . . . . . . . . . . . . . . . . . 25
9.3 Process faults without messages . . . . . . . . . 26
9.4 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.5 Returns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10 Technical Data . . . . . . . . . . . . . . . . . 29
10.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.2 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . 30
10.4 Operating conditions . . . . . . . . . . . . . . . . . . . 31
10.5 Mechanical construction . . . . . . . . . . . . . . . . . 32
10.6 Certificates and approvals . . . . . . . . . . . . . . . 33
10.7 Additional documentation . . . . . . . . . . . . . . . . 33
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Safety instructions CE 4
4Endress+Hauser
1 Safety instructions
Safe and secure use of this measurement station can only be ensured if these operating
instructions are read and the safety notes are followed.
1.1 Correct use
The measurement station is designed for automatic online measurement of liquids, not
abrasive media. The station independently and continuously feeds the media to be
measured using either a built-in pump or a pump supplied on site. The resulting
measurements are displayed on the individual tranmitters. The measured values can
also be displayed on a built-in paperless recorder or they can be transmitted to a control
system using various transmission systems. The built-in ASP-Station 2000 water
sampler takes samples from the measurement point in line with the programme set up.
– The measurement station must not be installed in hazardous areas.
– The manufacturer cannot be held responsible for any damage caused by incorrect
use of the measurement station. Rebuilding of the station and constructive changes
must not be done.
1.2 Installation, commissioning, operation
This measurement station has been designed and built for safe operation using state-
of-the-art technology and in line with the necessary regulations and EU guidelines. If the
measurement station is missued or used in an inappropriate manner, could be
dangerous.
Mechanical and electrical installation, commissioning and maitenance of the
measurement station must only be carried out by skilled and trained personnel. Skilled
personnel must have read, understood and followed these operating instructions. The
entries regarding the electrical connections (see Chap.4 "Wiring") must be followed to
the letter. The measurement station must only operated by trained personnel.
#Warning!
Before opening the electronic compartment:
•No commissioning without earth/ground protection connection! If faults cannot be
cured then the measurement station must be removed from operation and protected
against unintentional operation. Always isolate the station from the mains power (main
switch) before opening the electronic compartment (opening the swing frame).
1.3 Operational safety
The measurement system complies with the general safety requirements laid down in
the EN 61010-1, Protection class I, overvoltage category II.
CE mark according to the directives 89/336/EWG (EMC) and 73/237/EWG (low voltage
directives).
Technical advancement
The manufacturer reserves the right to improve or update the technical detail without
any special notification. For details on improvements or additions to these instructions,
please contact your E+H sales office or agent.

CE 4 Safety instructions
Endress+Hauser 5
1.4 Returns
Before units are returned to Endress+Hauser for repair, the following must be taken care
of:
•The unit should always be accompanied by a completed ’Safety Regulation Form’.
Only then can Endress+Hauser transport, check and repair the returned unit.
•If required place a special handling recommendation form with the returned unit, e.g.
a safety data note to EN 91/155/EWG.
•Remove all materials soiling the unit. Please take special note of the gasket cut-outs
and rims into which solids can seep. This is especially important if the medium
measured could constitute a health hazard, e.g. flammable, poisonous, corrosive,
carcinogenic, etc.
!Note!
A copyable sample of the ’Safety Regulation Form’ can be found at the end of these
instructions.
"Caution!
•Do not return a unit if it is deemed impossible to remove all hazardous materials, e.g.
material seepage in scratches or media diffused by the plastic.
•Costs incurred for disposal due to lack of cleaning of the unit or for personal injury
(corrosion burns etc.) will be invoiced to the user.
It is always recommended to protect the unit correctly when returning it e.g. in case of
repairs. Optimum protection is given by the original packaging. Repairs must only be
carried out by the Endress+Hauser service personnel. For the nearest service
department, see the addresses at the rear of this manual.
!Note!
When returning the unit for repair please enclose a note detailing the fault and the
application.
1.5 Safety pictograms and symbols
The safety hints in these operating instructions are indicated by the following symbols:
"Caution!
This symbol means activities or sequences that, if done incorrectly, could lead to faulty
operation or destruction of the unit.
#Warning!
This symbol means activities or sequences that, if done incorrectly, could lead to
serious personal injury, to a safety risk or destruction of the unit.
!Note!
This symbol means activities or sequences that, if done incorrectly, could have an
indirect influence on the unit’s operation or could cause an unforeseen unit reaction.

Identification CE 4
6Endress+Hauser
2 Identification
2.1 Device designation
2.1.1 Legend plate
Compare the legend plate on the unit with the following figure:
Fig. 1: Legend plate entries for the measurement station (example)
Pos. 1: Order code and series number for the measurement station
Pos. 2: Commission number
Pos. 3: Power supply
Pos. 4: Power consumption
2.2 Delivery
Please check the consignment for complete delivery by comparing the delivery note
and your order:
•Unit type and model from the legend plate
•Operating instructions (see sections 5, 6, 7, 8 in the ring binder)
•Measurement station accessories (see chapter 8 "Accessories" )
The measurement station is built either exactly to the order code or tailored to customer
requirements. This means that each unit delivered will be different:
•Analysis system
•ASP-Station 2000 water sampler
•CE 4 operating instructions
•ASP-Station 2000 operating instructions
•CE 4 technical instructions
•Operating instructions and certificates for the indidual units and components fitted
•Accessories that have been ordered under the same order number
2.2.1 Identification lists
The identification list for this measurement station can be found in section 1 in the ring
binder. In this section, all individual components are listed including order code and unit
numbers.
2.3 Certificates and approvals
This measurement station has been designed, built and tested for safe operation using
state-of-the-art technology and has left our factory in a safe operational condition. All
necessary and available certificates, test reports and approvals are included (see
section 11 in the ring binder).
CE 4
1
2
3
4
Order Code:
CE4-xxxxxxx
Ser. No.: 123456789B5
Spec.: 30000001/0001
U: 230 VAC
P: 1000 W
ENDRESS+HAUSER
87484 Nesselwang / Germany 2003

CE 4 Mechanical installation
Endress+Hauser 7
3 Mechanical installation
3.1 Delivery, transport, storage
3.1.1 Delivery
•Is the packaging or content damaged?
•If damaged, contact the transport company.
3.1.2 Transport to measurement point
The measurement station is delivered mounted on a palette. In order to avoid transport
damage, the station is fixed to the pallet in a number of positions. The palette can be
transported using a fork lift truck or crane (min. loading 500 kg) (see Fig. 2 Pos. A and
B). The built-in pump is separately bolted down on the pallet.
The measurement station must be transported upright and secured to prevent tipping
over. Avoid shocks.
Fig. 2: Transport to installation point
Pos. A: Lifting the measurement station with a crane. Fitting correct lifting tackle (see arrow).
Pos. B: Lifting the measurement station using a fork lift truck.
3.1.3 Storage
If the system is to be stored for a longer period (>4 weeks) the following must be taken
care to avoid damage to the unit:
•Completely empty and clean the measurement station. New units are delivered
completely empty
•pH sensor must be stored in the delivered calibration beaker filled with a pH 7 buffer
solution
•When using a peristaltic pump, the pump hose must be removed and stored
according to the respective operating instructions (Section 8 in the ring binder)

Mechanical installation CE 4
8Endress+Hauser
3.2 Installation conditions
•The permitted ambient temperature (see chapter "Technical data") must not be
exceeded both on installation and operation.
•A solid foundation must be available. For dimensions see the foundation plan
(→Chap. 3.2.3)
•Install vertical and level
•Outside installation: Avoid direct sunlight on the front of the unit. If required, fit a sun
protection system (all-weather roof)
•If the water in and outflow pipework is installed in the open air, these should be
protected from frost
•Because the analysis component has to be continuously rinsed with water, it must be
guaranteed that there is always enough water available at the sampling point so that
dry running of the system is avoided (e.g. small weir etc)
The feed hose should therefore be fixed as required
"
Caution!
Dry running and sand grains/particles can shorten the life span of the eccentric pump.
•The outflow hoses must be installed falling away from the unit and with free outlet
•When using the manual or automatic cleaning system, an isolation valve and pressure
reducer must be installed on site
3.2.1 Material resistance of the analysis pipework
The analysis system consists of a PVC pipework system and due to its material
composition is suitable for drinking water and beverages.
General chamical resistance
Resistant: Acids and bases
Non-resistant: Aromatic solvents
Application limits for pressure and temperature
(25-year values with calculated safety factor)
Type used: PVC-PN10
Fig. 3: Application limits pressure and temperature (Source: Georg Fischer +GF+ pipework systems for
industry and supply, 1st edition 1996, Page 5.04)

CE 4 Mechanical installation
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3.2.2 Dimensions
The dimensions for the measurement station can be found in chapter "Technical data".
3.2.3 Installation point/foundation plan
Fig. 4: Foundation drawing without water sampler
Pos. A: M8x20 rawl bolts or M8 rawl plugs
Pos. B: In and outflow hoses for the measurement liquid
Pos. C: Water supply
Pos. D: Power cables
Pos. E: Signal cables
Pos. H: Feed pump installation area
Pos. I: Cabinet base
Pos. K: Overflow shaft
Fig. 5: Foundation drawing with water sampler
Pos. A: M8x20 rawl bolts or M8 rawl plugs
Pos. B: In and outflow hoses for the measurement liquid
Pos. C: Water supply
Pos. D: Power cables
Pos. E: Signal cables
Pos. F: Water sampler suction hose
Pos. G: Water sampler overflow and condensation water
Pos. H: Feed pump installation area
Pos. I: Cabinet base
Pos. K: Overflow shaft
100
A
A
A H
I
K
100
84
209
459
568
534
559
240 360 520 620 700
668
0
0
0
184
ø
100
ø50
ø50
ø50
BB
ABCD E
100 350 700 450 800
0
100
668
100
1634
207 567 100
100
134
109
534
500
559
257 377 577 677 930 1234
0
0
0
0
568
0
1534
0
ø100
ø50
ø50
ø50
ø80
ø80
100
250
600
BB
A A
A
A
BCD E F G
HIK

Mechanical installation CE 4
10 Endress+Hauser
3.2.4 Installation point/hose installation
Installation hint
Sampling point
•Medium removal for the pump and the sampling system must be taken from
representative point in the channel, i.e. not on the edge of the channel and not in the
sump or floor of the channel. A point offering a homogeneous mixture should be
selected.
•There should always be enough medium available at the sampling point so that the a
good head of water is always available.
•Suction hose is immersed by using a weight (see "Accessories").
Sampling hose installation
The sampling hose must always be installed with a downward slope from the
measurement station to the sampling point. Depending on the application, some hoses
may require frost protection.
Fig. 6: Sampling hose installation
3.3 Mechanical installation
3.3.1 Tooling
The following tools are required to install the measurement station:
•Electric drill with 12 mm concrete bit
•M8 (4x) V2A rawl bolts
•M8 (4x) V2A nuts and U washers
•13 AF ring spanner
•Screwdriver for power/signal terminals
•Philips screwdriver

CE 4 Mechanical installation
Endress+Hauser 11
3.3.2 Installation of the measurement station
"Caution!
•Make sure that the unit is isolated from the mains power when installing or removing
the system.
Follow the next steps when fitting the measurement station on the foundation:
1. Using the foundation plan as a template, set the rawl bolts or rawl plugs for fixing
the station onto the foundation (→Chap. 3.2.3).
2. Place the measurement station onto the hardened foundation. Please note that the
pump is fixed separately to the pallet!
3. Screw the measurement station tightly to the foundation using the nuts and washers
(Attention: only use V2A stainless steel parts).
4. Anchor the pump tightly to the foundation.
5. Connect the suction pipe, outflow pipe, water sampler suction hose, condensation
water overflow, water sampler overflow and the fresh water pipe.
6. Complete the electrical connection (see chapter 4.1)
Fig. 7: CE4 measurement station connection schematic
Pos. A: Analysis pipework
Pos. B: Electrical compartment with swing frame
Pos. C: Water sampler electronic compartment
Pos. D: Water sampler wet compartment
Pos. E: Base/pump room
Pos. F: Water sampler suction hose
Pos. G: Water supply/fresh water supply
Pos. H: In and outflow hose

Electrical connection CE 4
12 Endress+Hauser
3.4 Check installation
Once the unit has been installed, run the following checks:
4 Electrical connection
4.1 Wiring the measurement station
"
Caution!
Do not install/wire the measurement station under live power conditions. Non-
compliance can lead to damage of the electronics.
In order to wire the measurement station follow these steps:
1. Loosen the 2 fixing screws on the electronic compartment, open the swing frame.
2. Connect mains power as shown in the electrical connection diagram in the ring
binder section 3.
3. Connect the signal cables as shown in the connection schematic in section 3 in the
ring binder.
4. Close the swing frame and tighten the fixing screws.
4.1.1 Connecting mains power
"Caution!
•Before connecting mains power compare this with the power supply on the legend
plate.
4.2 Screening and potential compansation
When installing please take note of the following:
If screened cables are to be used then the screen on the output (output signal 4 - 20mA)
and the sensor connection end must have the same potential!
It is recommended to use screened cable with a low Ohm earth/ground connection on
plants where strong electromagnetic fields could be present. Sensor cables installed
outside are recommended to be screened as a precaution against the danger of
lightening strikes!
4.3 Ingress protection
•Analysis compartment and base IP 44
•Water sampler controller IP 65
•Water sampler electronic compartment IP 43
•Water sampler IP 54
Unit condition and specification Hints
Is the measurement station damaged? Visual check
Is the rinse water pipe correctly installed and has it been tested for
leaks?
-
Have the hoses been installed correctly? (no possibility of dry
operation)
Have the hose jubilee clips been tightened?
-

CE 4 Operation
Endress+Hauser 13
4.4 Checking the connections
Once the measurement station has been electrically connected, run the following
checks:
5Operation
!Note!
The operation of individual components can be found in the respective operating
instructions in sections 5, 6, 7 and 8 in the ring binder.
5.1 Communication and data security
The measured data cables from individual measurement transmitter signals are wired
to the terminals in the electronic compartment as standard 4 - 20mA signals.
5.1.1 Data storage
For data logging, Endress+Hauser can offer a number of different recording and data
acquisition devices (e.g. Eco-Graph or Memo-Graph).
Fig. 8: Recorders from Endress+Hauser for data storage in the CE 4 measurement station
Unit condition and specification Hints
Are the measurement station or cables damaged ? Visual check
Electrical connections
Does the power supply correspond with that on the legend plate? See legend plate
Are all terminals tightly fixed in their correct position? Is the coding on
the individual terminal correct?
-
Are the power supply and signal cables correctly connected? See connection schematic
for the station
Have all terminal screws been tightened? -

Operation CE 4
14 Endress+Hauser
Data transmission
•RS232/RS485:
Data transmission of the measured values using the RS232 or RS485 serial interface
of the Memo-Graph or Eco-Graph. This is done with the assistance of a 9 pin SUB D
plug and socket connection.
•PROFIBUS:
Measured value and device set-up transmission using PROFIBUS-DP; connection is
made by means of an IFAK Profibus coupler.
•Modem:
Measured value and alarm violation transmission from the Memo-Graph paperless
recorder fitted with Tele-alarm software and Siemens terminal TC35 GSM modem. The
message can be transmitted directly to a PC or as an SMS to a cell telephone.
Memo-Graph Eco-Graph Eco-Graph A
Paperless recorder for electronic recording
of digital and analogue input signals.
Memo-Graph plots signal sequences,
monitors alarm set points, analyses
measurement points, stores the recorded
data internally and archives this on
diskette, ATA flash memory cards or PC.
Paperless recorder for
electronic recording of digital
and analogue input signals.
Eco-Graph records measured
value sequences, quantities,
operating times, monitors
alarm set points and stores
this data both internally and
on a diskette.
Functions of this device are
the same as the Eco-Graph,
additionally: counter inputs,
quantity integration and the
generation of intermediate,
daily, monthly and yearly
reports.
• Multi-channel: 8 or 16 universal, 37
digital inputs, 4 mathematics channels
and 8 combinations for the digital
inputs.
• Maintenance-free: No wear and tear - no
paper and pens.
• Universal: Free selection of signal
display mode.
• Secure: Complete data security
concept.
• Reliable: Alarm set point and self
monitoring functions.
• Informative: Event search, automatic
signal analysis.
• Practical: Easily read grouping for
individual channels.
• Communicative: Interfaces for set-up
and data transmission.
• Electronic recording replaces dotting and strip chart
recorders, saves on consumables.
• Universal inputs measure all signals, guarantees universal
application possibilities.
• Quick Setup and integrated operating instructions enables
set-up in minutes, saves time.
• FLASH memory, reliable archiving even on power failure.
8 to16 analogue inputs, 8 maths channels 3 to 6 analogue inputs
Max. 37 digital inputs 4 digital inputs
Communication
RS232, RS485, PROFIBUS, Modem RS232, RS485

CE 4 Commissioning
Endress+Hauser 15
6 Commissioning
6.1 Installation check
If all the following questions can be answered with a YES, then the unit can be
commissioned. If an answer is NO, then please read the necessary corresponding
chapter:
6.2 Commissioning the measurement station
There are two different types of commissioning of the system- initial commissioning and
recommissioning. We recommend the use of an Endress+Hauser service
engineer for the initial commissioning process.
6.2.1 Initial commissioning
Initial commissioning means the measurement station has not been in use since it was
delivered by the manufacturer or the downtime of the system is greater than 4 weeks.
In order to guarantee safe and reliable operation, please follow these steps:
1. Before commissioning the main isolator and earth trip (identified as -1F1) function
must be checked by a qualified electrician.
2. In order to commission the sysetm step by step, each individual fuse switch should
be activated one after the other. Please take note of the respective device
operating manuals when commissioning the devices (see sections 5, 6, 7, 8 in the
ring binder).
Initial commissioning:
•Install the in and outflow hoses as well as the water sampler suction hose (see chapter
3.2.4).
•Remove the protective covers on the snsor (only on pH sensors).
•Sensors must be calibrated on site, take note of the respective sensor operating
instructions! (section 5 in the ring binder). Calibration of the turbidity sensor is not
necessary.
•Check the set-up of the individual transmitters, if necessary redo. See the respective
transmitter operating instructions (section 5 in the ring binder).
•Make sure that all screws, clamps and jubilee clips are tight.
•Connect main power supply (see chapter 4).
•Make sure that the power supply is correct e.g. 230 V! (Connection schematic section
3 in the ring binder, or legend plate).
•Fill the pump with clear water (pump operating manual, section 8).
•Define and activate the water sampler programme.
General Hint
Has the measurement station been mounted on the foundation
correctly?
!Chap. 3
Are the in outflow hoses connected correctly and have they
been protected against tension?
!Chap. 3
Has the water supply been correctly connected and has it been
protected against tension?
!Chap. 3
Are the water hoses undamaged? Visual check
Are the electrical cables undamaged? Visual check
Are the electrical connection cables correctly tightened? Visual check
Is the power supply correct (230 V or 400 V)? Compare legend plate and power
supply

Commissioning CE 4
16 Endress+Hauser
6.2.2 Recommissioning
Recommissioning is required when the measurement station is to be made operational
after a short time offline (<= 4 weeks). Follow these instructions if the system is to
operate safely and reliably:
•Make sure that all water connections and internal screw connections are tight
•Run a visual control of the electronic compartment making sure that there are no loose
connections
•Check the sensors and if required, recalibrate. Take note of the respective sensor
operating instructions! (Section 5 in the ring binder)
•Define and activate the water sampler programme
6.3 Device set-up
In order to set up the water sampler programme, read chapters 6.3 to 6.6 in the ’ASP-
Station 2000’ operating instructions (BA080r09) .

CE 4 Maintenance and cleaning
Endress+Hauser 17
7 Maintenance and cleaning
The intervals when the sensors need to be monitored and cleaned are mainly
dependent on the features of the medium that is to be measured. It is therefore
recommended that during the initial time after commissioning that the sensors are
regularly monitored for soiling. This will then make it easier to set sensible maintenance
intervals.
!Note!
Please take note of chapter 7 "Maintenance" in the ASP-Station 2000 operating manual.
7.1 Manual cleaning of the measurement system
When the measurement station has been operational for longer time periods it is
possible that the internal pipework system becomesdirty. This cannot be removed by
the self cleaning function of the unit. Therefore, depending on the application it may be
necessary to run a complete pipework cleaning sequence at least every 3 to 6 months.
1. Switch the pump off (motor starter in the swing frame).
2. Open the outflow valve.
3. Open the overthrow nuts on the sensors.
4. Carefully remove the sensors - avoid contact with them!
5. Open the inflow and outflow connection to the pipework system. Check the
condition of the jubilee clips and hoses for reuse.
6. Loosen the fixing clamps and remove the pipework system.
7. Loosen the screwed fitting on the pipework. These can be very tight so use a pipe
clamp (oil filter spanner) to loosen them.
8. Clean all pipe elements using bottle brush and water jet.
9. Rebuild all elements, hand tighten all overthrow nuts. Make sure that everything fits
perfectly if necessary use grease suitable for PVC!
10. Switch the pump on (motor starter in the swing frame).
7.2 Sensor control and cleaning
1. Switch the pump off (motor starter in the swing frame).
2. Open the outflow valve (PVC).
3. Open the overthrow nuts on the sensors.
4. Carefully remove the sensor holders, avoid contact with them!
5. Clean the sensors carefully using sponge and potable water.
6. Clean the holders and overthrow nut threads.
7. Replace sensor holder. Take note of the position of the turbidity sensor! (key pin).
8. Hand tighten all overthrow nuts. Make sure that everything fits perfectly. If
necessary use grease suitable for PVC!
9. Close the outflow valve (PVC).
10. Switch the pump on (motor starter in the swing frame).
11. Observe the measured values. Are all measurements indicating plausible values?
If not the sensors should be recalibrated. The calibration procedure is described in
the respective individual operating instructions (section 5 in the ring binder).

Maintenance and cleaning CE 4
18 Endress+Hauser
7.3 Operating the cleaning system
Depending on the device configuration the following possibilities are available for
manual or automatic cleaning of the pipework:
7.3.1 Manual cleaning using fresh water
When using the manual cleaning process the analysis pipework is rinsed, the suction
hoses are purged and the sensors are cleaned using a sprayhead and clean water. The
control of the cleaning system is done by manually operating a ball valve. the pump
must be switched off when purging the suction hoses.
Fig. 9: Connection schematic for manual cleaning using clear water
7.3.2 Automatic fresh water cleaning system
Cleans the analysis pipework, purge the suction hose and cleans the sensors using a
spay head and clean water. Control is provided by a small integrated
controller. The cleaning cycles and length can be individually set up (→Chap. 7.3.4).
The cleaning sequence can also be started manually (pushbutton on the swing frame).
If the sensors are to be cleaned manually, then the pump must be switched on.
Fig. 10: Connection schematic for automatic cleaning using clean water
Clean water
2 to 4 bar
Pump
suction hose
Sensor
spray heads
Site work
CE 4
Clean water
2 to 4 bar
Pump
suction hose
Sensor
spray heads
Site work
CE 4
Controller

CE 4 Maintenance and cleaning
Endress+Hauser 19
If an automatic rinse system is available and the pump is switched on, the complete
pipework system including sensors can be rinsed in presettable time cycles using water
from the local supply. Rinse cycle and time for hose and sensors must be matched to
suit individual application and can be individually set up. Individual set-up points are
available using numbered "Block numbers" (e.g. B01=Sensor rinse interval set up
position). For controller set-up →Chap. 7.3.4
Suction hose rinse:
Fig. 11: Time cycles for automatic suction hose rinse
Sensor rinse:
Fig. 12: Time cycles for automatic sensor rinse
on off
A
B / C
I
K / H
BC B
H
on off
D
E
I
K
Pos. Function Set up address Time interval Factory default
A Start hose rinse B01 (0...99h) 24h
B Hose rinse time B02 (0...99s) 45s
C pump rinse time B03 (0...99s) 30s
D Start sensor rinse B04 (0...99h) 18h
E Sensor rinse time B05 (0...99s) 60s
H Hold time after suction hose rinse B08 (0...99s) 20s
I Pump status
K Hold (transmitter)

Maintenance and cleaning CE 4
20 Endress+Hauser
7.3.3 Automatic cleaning system "Chemo-Clean"
Cleans the analysis pipework, purge the suction hose and cleans the sensors using a
spay head and clean water and chemical cleaning media using the "Chemo-Clean"
system. The user selects the cleaning medium (detergent) for the application. The
cleaning system control provided using an integrated mini-controller (→Chap. 7.3.4).
The detergent feed control is carried out by the Chemo-Clean CYR10 injector (see
CYR10 operating manual in section 7 in the ring binder).
The cleaning sequence can also be started manually (pushbutton on the swing frame).
If the sensors are to be cleaned manually, then the pump must be switched on.
Fig. 13: Connection schematic for automatic cleaning using "Chemo-Clean"
Suction hose rinse:
Fig. 14: Time cycles for automatic suction hose rinse using "Chemo-Clean"
Clean water
2 to 4 bar
Pump
suction hose
Sensor
spray heads
Site work
CE 4
Controller
Injector
CYR10
Detergent
container
on off
A
B / C
I
K / H
BC B
H