Endress+Hauser Turbimax CUS71D User manual

Products Solutions Services
Operating Instructions
Turbimax CUS71D
Ultrasonic interface sensor
BA00490C/07/EN/05.16
71353737
AUTHORIZED DISTRIBUTOR:
InstrumentsAndControl.com
Houston, Texas USA
[email protected]
281-609-7170

Turbimax CUS71D Table of contents
Endress+Hauser 3
Table of contents
1 Document information ......... 4
1.1 Warnings ........................... 4
1.2 Symbols used ........................ 4
2 Basic safety instructions ....... 5
2.1 Requirements for personnel ........... 5
2.2 Designated use ...................... 5
2.3 Occupational safety .................. 6
2.4 Operational safety ................... 7
2.5 Product safety ....................... 7
3 Product description ............. 8
3.1 Product design ....................... 8
4 Incoming acceptance and
product identification .......... 8
4.1 Incoming acceptance ................. 8
4.2 Product identification ................. 9
5 Installation .................... 11
5.1 Installation conditions ............... 11
5.2 Mounting the sensor ................ 14
5.3 Post-installation check ............... 18
6 Electrical connection .......... 18
6.1 Connecting the sensor ............... 18
6.2 Post-connection check ............... 20
7 Commissioning ................ 20
7.1 Preparatory steps ................... 20
8 Operation ...................... 20
8.1 Sensor monitoring .................. 20
8.2 Cyclic cleaning ...................... 20
8.3 Automatic wiper function ............ 21
9 Diagnostics and
troubleshooting ............... 21
10 Maintenance .................. 21
10.1 Maintenance tasks .................. 22
11 Repairs ......................... 23
11.1 Spare parts ........................ 23
11.2 Return ............................ 23
11.3 Disposal ........................... 23
12 Accessories .................... 24
12.1 Assemblies ........................ 24
12.2 Holder ............................ 25
12.3 Cable extension ..................... 26
13 Technical data ................. 26
Index ................................. 28

Document information Turbimax CUS71D
4 Endress+Hauser
1 Document information
1.1 Warnings
Structure of information Meaning
LDANGER
Causes (/consequences)
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)
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)
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
Consequences of non-compliance (if
applicable)
‣Action/note
This symbol alerts you to situations which may result in damage to property.
1.2 Symbols used
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

Turbimax CUS71D Basic safety instructions
Endress+Hauser 5
1.2.1 Symbols on the device
Symbol Meaning
Reference to device documentation
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
CUS71D is a sensor designed for interface measurement in water and wastewater.
The sensor is particularly suited for use in the following applications:
• Wastewater treatment: primary clarifier, sludge thickener, secondary clarifier
• Water treatment: sedimentation tank after flocculant dosage, sludge height in contact
sludge processes
• Static separation processes: with/without slow stirring and without introduction of air
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.
NOTICE
Non-designated use
Incorrect measurements, malfunctions and even measuring point failure could result
‣Only use the product in accordance with the product specifications.
‣Pay particular attention to the technical data on the nameplate.

Basic safety instructions Turbimax CUS71D
6 Endress+Hauser
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.

Turbimax CUS71D Basic safety instructions
Endress+Hauser 7
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
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.
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.

Product description Turbimax CUS71D
8 Endress+Hauser
3 Product description
3.1 Product design
The sensor is designed for continuous in-situ determination of interfaces.
The sensor includes all necessary modules:
• Power supply
• The ultrasonic source emits the measurement signals.
• The ultrasonic receiver receives the measurement signals, digitalizes the signals and
converts them to a measurement value.
• The sensor microcontroller controls the internal operations and data transmission.
The preconfigured sensor can be used at a measuring point.
3.1.1 Measuring principle
A piezoelectric crystal is enclosed in a flat cylindrical plastic housing. When the crystal is
excited by an electrical voltage, it generates a sonar signal. This causes ultrasonic waves to be
transmitted at a frequency of approx. 650 kHz and at an angle of 6° to scan the separation
zones.
The measured variable is the time the transmitted ultrasonic signal needs to reach the solid
particles in the separation zone and return to the receiver. The separation zone is computed
after the maximum slope and the maximum signal amplitude.
A sensor version featuring a wiper is available to reliably avoid the buildup of deposit on the
sensor membrane.
4 Incoming acceptance and product identification
4.1 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.

Turbimax CUS71D Incoming acceptance and product identification
Endress+Hauser 9
4.2 Product identification
4.2.1 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
• Safety information and warnings
Compare the data on the nameplate with your order.
4.2.2 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. At the bottom of the page, click the link Online Tools and then select Access device
specific information.
 An additional window opens.
3. Enter the order code from the nameplate into the search field and then select Show
details.
 You will receive information on each feature (selected option) of the order code.
Manufacturer's address
Endress+Hauser Conducta GmbH+Co. KG
Dieselstraße 24
D-70839 Gerlingen
4.2.3 Scope of delivery
The delivery comprises:
• 1 Turbimax CUS71D sensor, version as ordered
• 1 set of Operating Instructions BA00490C/07/EN
If you have any questions, please contact your supplier or your local sales center.
4.2.4 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 EU directives. The manufacturer confirms
successful testing of the product by affixing to it the  mark.

Incoming acceptance and product identification Turbimax CUS71D
10 Endress+Hauser
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.
Electromagnetic compatibility
Interference emission and interference immunity: Industrial environment as per
• EN 61326-1:2013
• EN 61326-2-3:2013
• NAMUR NE21: 2012

Turbimax CUS71D Installation
Endress+Hauser 11
5 Installation
5.1 Installation conditions
5.1.1 Dimensions
20 (0.79)
12 (0.47)
NPT 3/4"
G1
74.3 (2.93)
43.3 (1.70)
68.8 (2.71)
34.7 (1.37)
46 (1.81)
A0031576
 1 Dimensions of the standard sensor in mm
(inch)
20 (0.79)
12 (0.47)
NPT 3/4"
G1
74.3 (2.93)
110 (4.33)
135.5 (5.33)
34.7 (1.37)
46 (1.81)
19 (0.75)
A0031575
 2 Dimensions of the sensor with wiper in
mm (inch)

Installation Turbimax CUS71D
12 Endress+Hauser
Basin configuration
AB
C
D
E
6°
F
A0031574
 3 Basin configuration
A Sensor
B Minimum distance between sensor and basin wall = 50 cm (1.64 ft.)
C Fixed reference point e.g. surface of water, basin wall, bridge/walkway etc.
D Sensor offset
E Basin depth
F Opening angle of ultrasonic cone 6°
Installation instructions
Check the construction drawing of the basin for a suitable installation position for the sensor.
When selecting the installation position, you must take the following factors into
consideration:
• The distance from the basin wall must be at least 50 cm (1.64 ft.) (the sensor emits
ultrasonic waves in a conical pattern).
• There should not be any conduits or basin wall protrusions in the measuring range below
the sensor. Scraper units that are only temporarily in this area are permitted.
• Mount the sensor so that it is straight and parallel to the basin wall (measured value
offset).
• Do not install the sensor in zones where air bubbles, turbulence, high concentrations of
turbid material or suspended matter, or foam formation occur (e.g. inlet).
• Using a dip pipe, install the sensor at least 20 cm (7.8 inch) beneath the surface of the
water.

Turbimax CUS71D Installation
Endress+Hauser 13
Circular clarifier
1/3 2/3
1
2
3
4
5
1/3 2/3
11
12 13
14
A
B
A0031579
 4 Basin configuration in circular clarifiers
A View from above B Cross-section
1 Surface skimmer 11 Sensor
2 Bridge/walkway 12 Rail
3 Sensor position range 13 Surface skimmer
4 Floor rake 14 Floor rake
5 Direction of rake movement

Installation Turbimax CUS71D
14 Endress+Hauser
5.2 Mounting the sensor
5.2.1 Measuring system
A complete measuring system comprises:
• Turbimax CUS71D ultrasonic sensor
• Liquiline CM44x multi-channel transmitter
and is optionally delivered with the following accessories:
• A weather protection cover CYY101
• A Flexdip CYH112 holder
• A fixed or rotatable Flexdip CYA112 dip pipe

Turbimax CUS71D Installation
Endress+Hauser 15
1
2
3
4
1
5
90°
6
7
A0031577
 5 Ultrasonic sensor with basin holder system and multi-channel transmitter
1 Flexdip CYH112 holder
2 Liquiline CM44x multi-channel transmitter
3 Protective cover
4 Flexdip CYA112 assembly
5 Turbimax CUS71D ultrasonic sensor
6 Vertical from all sides
7 Splash protection cap

Installation Turbimax CUS71D
16 Endress+Hauser
5.2.2 Measuring system with pendulum holder
123
4
5
A0031578
 6 Measuring system with pendulum holder
1 Flexdip CYH112 holder (cross clamp)
2 Flexdip CYH112 holder (pendulum holder)
3 Flexdip CYA112 assembly with CUS71D
4 PVC sensor protector
5 Splash protection cap
The PVC sensor protector protects the ultrasonic sensor from being damaged by the surface
skimmer.
If using surface skimmers, only use a sensor without a wiper and with a PVC sensor
protector (see "Accessories" section).

Turbimax CUS71D Installation
Endress+Hauser 17
5.2.3 Measuring system with chain holder
1
2
1
1
2
3
A0031583
 7 Measuring system with chain holder
1 Holder Flexdip CYH112
2 Assembly Flexdip CYA112
3 CUS71D sensor
1
2
1
1
2
3
A0031582
 8 Measuring system with chain holder
1 Holder Flexdip CYH112
2 Assembly Flexdip CYA112
3 CUS71D sensor with PVC sensor protector
The PVC sensor protector protects the ultrasonic sensor from being damaged by the surface
skimmer.
If using surface skimmers, only use a sensor without a wiper and with a PVC sensor
protector (see "Accessories" section).

Electrical connection Turbimax CUS71D
18 Endress+Hauser
5.3 Post-installation check
• Are the sensor and cable undamaged?
• Is the cap undamaged?
• Is the orientation correct?
• Is the sensor installed in an assembly and not suspended from the cable?
• Avoid the penetration of moisture by fitting the protective cap on the immersion assembly.
6 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.
6.1 Connecting the sensor
• Only one sensor can be connected to the Liquiline CM442 transmitter.
• Up to four sensors can be connected to the Liquiline CM444 and CM448 transmitters.
The fixed cable of the sensor is connected to the Liquiline CM44x transmitter as follows:
N L 43 42 41 86 85 86 85
98 97 88 87
32 31 32 31
PK
GY
GN
YE
Sensor
PE
A0012460
 9 Sensor connection

Turbimax CUS71D Electrical connection
Endress+Hauser 19
The maximum cable length is 100 m (328 ft).
The following accessories are recommended to extend the sensor cable:
• CYK11 measuring cable with ferrules →  26
• Cable/cable junction box →  26

Commissioning Turbimax CUS71D
20 Endress+Hauser
6.2 Post-connection check
Device condition and specifications Notes
Are the outside of the sensor, assembly, cable undamaged? Visual inspection
Electrical connection Notes
Are the installed cables strain-relieved and not twisted?
Is a sufficient length of the cable cores stripped, and is it positioned
in the terminal correctly?
Check the fit (by pulling gently)
Are all the screws terminals properly tightened? Tighten
Are all cable entries mounted, tightened and leak-tight? For lateral cable entries, make sure the cables
loop downwards to allow water to drip off
Are all cable entries installed downwards or mounted laterally?
7 Commissioning
7.1 Preparatory steps
7.1.1 Factory settings
The sensor is preconfigured on leaving the factory. Once the installation parameters have
been adjusted, the sensor is ready for use in a wide range of applications without further
adjustments. The factory settings cannot be deleted and can be retrieved at any time.
Enter the installation parameters at the Liquiline CM44x transmitter. For more information,
please refer to the Operating Instructions of the transmitter.
8 Operation
8.1 Sensor monitoring
The acoustic signals are continuously monitored and analyzed for plausibility. If
inconsistencies occur, an error message is output via the transmitter.
In addition, the following fault conditions are detected by the sensor diagnostics of Liquiline
CM44x:
• Implausibly high or low measured values
• Disturbed regulation due to incorrect measured values
8.2 Cyclic cleaning
Cyclic cleaning is available for ultrasonic sensors with an integrated wiper. The wiper interval
is set to 240 minutes at the factory.