Endress+Hauser Turbimax CUE21 User manual

BA395C/07/en/03.07
71001158
Operating Instructions
Turbimax CUE21 / CUE22
Turbidimeter for on-line measurement
OUT
IN
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Turbimax CUE21

Endress+Hauser
Brief operating instructions
This explains how to use these Operating Instructions to commission your turbidimeter quickly and
safely:
Safety instructions
→Page 4 ff.
→Page 5
General safety instructions and explanations of the safety icons are provided in the section in
question.
Specific safety instructions are provided at the appropriate position. Their level of importance can
be seen from the icon: #Warning, "Caution, !Note.
Æ
Installation
→Page 9
→Page 10 ff.
The installation conditions, such as the dimensions of the device, are illustrated here.
Here, you can find all important steps for installing and plumbing the device.
Æ
Wiring
→Page 14 ff. Here, you can find the wiring diagrams and steps needed for the electrical connection of the
device.
Æ
Display and operating elements
→Page 16 ff. Use this section to familiarize yourself with the operation of the device.
Æ
Configuration
→Page 18 ff. Here, you can find all the important steps for configuring your measuring point.
Æ
Calibration
→Page 24 ff. This section explains all necessary steps to calibrate the instrument.
Æ
Maintenance
→Page 28 ff. Here, you can find information on important maintenance activities, for example, cleaning the
flow-through cuvette and replacing the desiccant pouch.
Æ
Accessories
→Page 30 ff. Here, you can find an overview of the accessories which can be supplied.
Æ
Troubleshooting
→Page 32 ff.
→Page 33
If faults occur during operation, use the check lists to localize and remedy them.
A list of available spare parts.
Æ
Technical data
→Page 36
→Page 35 ff.
Dimensions
Ambient and process conditions, weight, materials etc.

Turbimax CUE21 / CUE22
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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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Notes on safety icons and 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 Quick installation guide . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Incoming acceptance, transport, storage . . . . . . . . . . 9
3.3 Installation conditions . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 Installation instructions . . . . . . . . . . . . . . . . . . . . . 10
3.5 Post-installation check . . . . . . . . . . . . . . . . . . . . . . 13
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Electrical connection . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Post-connection check . . . . . . . . . . . . . . . . . . . . . . 15
5 Operation . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Display and operating elements . . . . . . . . . . . . . . . 16
5.2 Key assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 Access code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 Menu structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6 Commissioning. . . . . . . . . . . . . . . . . . 18
6.1 Function check . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.3 Instrument configuration . . . . . . . . . . . . . . . . . . . . 18
6.4 Instrument calibration . . . . . . . . . . . . . . . . . . . . . . 24
7 Maintenance. . . . . . . . . . . . . . . . . . . . 28
7.1 Cleaning the flow through cuvette . . . . . . . . . . . . . 28
7.2 Replacing the desiccant pouch . . . . . . . . . . . . . . . . 28
7.3 Replacing the lamp . . . . . . . . . . . . . . . . . . . . . . . . 29
8 Accessories. . . . . . . . . . . . . . . . . . . . . 30
8.1 Calibration solutions . . . . . . . . . . . . . . . . . . . . . . . 30
8.2 Flow chamber CUE21 / CUE22 . . . . . . . . . . . . . . 30
9 Troubleshooting . . . . . . . . . . . . . . . . . 32
9.1 Troubleshooting instructions . . . . . . . . . . . . . . . . . 32
9.2 System error messages . . . . . . . . . . . . . . . . . . . . . . 32
9.3 Process errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.4 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.5 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.6 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
10 Technical data . . . . . . . . . . . . . . . . . . . 35
10.1 Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.2 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.4 Performance characteristics . . . . . . . . . . . . . . . . . . 35
10.5 Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.6 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10.7 Mechanical construction . . . . . . . . . . . . . . . . . . . . 36
Index . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Safety instructions Turbimax CUE21 / CUE22
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1 Safety instructions
1.1 Designated use
The Turbimax CUE21 / CUE22 process turbidimeters have been designed for on-line measurement
of the turbidity of process water and drinking water. The infrared light instrument, CUE21, meets
the design criteria on turbidity measurement specified in ISO 7027 and DIN 27027. The white light
instrument, CUE22, meets the design criteria specified by US EPA 180.1.
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 measuring system has been designed and tested to the highest standards 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.
Immunity to interference
This instrument has been tested for electromagnetic compatibility in industrial use according to
applicable European standards.
Protection against interference as specified above is valid only for an instrument
connected according to the instructions in these Operating Instructions.
1.4 Return
If the device requires repair, please send it cleaned to the sales centre responsible. Please use the
original packaging, if possible.
Please enclose the completed "Declaration of contamination" (copy the second last page of these
Operating Instructions) with the packaging and the transportation documents.
No repair without completed "Declaration of contamination"!

Turbimax CUE21 / CUE22 Safety instructions
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1.5 Notes on safety icons and symbols
Safety icons
Electrical 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.
%Direct Current (DC)
A terminal at which DC is applied or through which DC flows.
&Alternating Current (AC)
A terminal at which (sine-form) AC is applied or through which AC flows.
)Ground connecting
A terminal, which, from the user’s point of view, is already grounded using a grounding system.
*Protective ground terminal
A terminal which must be grounded before other connections may be set up.
bAlarm relay
Input
Output
DC voltage source
Temperature sensor

Identification Turbimax CUE21 / CUE22
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2 Identification
2.1 Device designation
2.1.1 Nameplate
Compare the order number on the nameplate with your order.
The device version can be identified from this order number.
a0003781
Fig. 1: CUE21 nameplate (example)
2.1.2 Ordering information
Turbimax CUE21, compact device, infrared
Turbimax CUE22, compact device, white light
Turbimax CUE21
Rating:
Order code:
Serial no.:
CUE21-A1A
xxx
100-240 V AC
47-63 Hz
80 VA
139072-0000
Power supply
A 100 to 240 VAC
Output
1 4 to 20 mA or RS-485
Version
AStandard
CUE21- complete order code
Power supply
A 100 to 240 VAC
Output
1 4 to 20 mA or RS-485
Version
AStandard
CUE22- complete order code

Turbimax CUE21 / CUE22 Identification
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2.2 Scope of delivery
The scope of delivery comprises:
• 1 Turbimax CUE21 / CUE22 turbidimeter
•1Fieldterminalbox
• 1 Flow through assembly
• 1 Desiccant pack
• 1 Cuvette (single pack)
• 1 Tubing kit including
–1shutoffclamp
– 1 backpressure valve
– 2 connecting tubes with fittings for flow through assembly
– 1 drain vent screw (used in pressurized systems)
• 1 Operating Instructions BA395C/07/en
If you have any questions, please contact your supplier or your sales centre 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.

Installation Turbimax CUE21 / CUE22
8Endress+Hauser
3 Installation
3.1 Quick installation guide
Proceed as follows to completely install the measuring point:
• Mount the instrument (see "Installation instructions" section).
• Plumb the instrument as shown in the "Plumbing" section
• Connect the instrument as illustrated in the "Electrical connection" section.
• Commission the instrument as explained in the "Commissioning" section.
3.1.1 Measuring system
The Turbimax CUE21 / CUE22 measuring system comprises:
• Turbimax turbidimeter with installed cuvette and desiccant pouch
• Connecting tubing with
– fittings for flow through assembly
–shutoffclamp
– backpressure valve
– drain vent screw (in pressurized systems)
• Sensor interconnect cable
a0003460
Fig. 2: Turbimax CUE21 system (example)
1
2
3
4
Shutoff clamp
Intake tubing connection (for OD 8 mm (0.31"),
ID 4.75 mm (0.19") tubing)
Flowhead
Backpressure valve
5
6
7
8
Sensor interconnect cable
Drain vent
Drain tubing connection (for OD 8 mm (0.31"),
ID 4.75 mm (0.19") tubing)
Field terminal box
1
2
4
5
6
7
8
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Turbimax CUE21
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Turbimax CUE21 / CUE22 Installation
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3.2 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.
3.3 Installation conditions
a0003468
Fig. 3: Mounting dimensions front view
a0003469
Fig. 4: Mounting dimensions lateral view
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Turbimax CUE21
200 (8)
M6 (¼ inch)
207.65
(8.175)
90.17 (35)
50.8 (2.0)
M4
(3/16 inch)
30.17
(1.188)
147.66 (5.813)
87.33 (3.438)
mm (inch)
131.6 (5.164)
347.16 (13.668)
196.85 (7.75)
61.77
(2.432)
mm (inch)

Installation Turbimax CUE21 / CUE22
10 Endress+Hauser
3.4 Installation instructions
3.4.1 Mounting the instrument
Turbimax CUE21 / CUE22 is designed for wall mounting. If wall mounting is not practical, the
instrument can be mounted on any suitable level surface.
!Note!
• Check that the temperature does not exceed the maximum permitted operating temperature
range (0 to 50 °C (32 to 122 °F)).
• Leave a free area of approx. 0.20 m (8.00") above the instrument. This will ensure enough room
for calibration and cuvette maintenance.
• Mount the instrument as close as possible to the sampling point to ensure a quick response time
(within 2 to 3 m (6 to 10 ft)).
To mount the instrument proceed as follows:
1. Drill mounting holes for M4 (3/16") mounting screws to install the field terminal box. See the
"Installation conditions" section to establish mounting hole locations.
2. Drill mounting holes for M6 (¼") mounting screws to install the instrument enclosure on top
of the field terminal box. See the "Installation conditions" section to establish mounting hole
locations.
3. Mount the field terminal box.
4. Mount the rest of the instrument on top of the field terminal box.
3.4.2 Installing the desiccant pouch
Turbimax CUE21 / CUE22 is equipped with a continuous vapor purge system. A replaceable
desiccant pouch in the lower portion of the instrument dries the air. System heat is used to warm
the air. A fan inside the instrument continuously circulates heated air around the optical well and
the flow through cuvette.
To install the desiccant pouch, proceed as follows:
!Note!
To prevent premature saturation of the desiccant, it is recommended to keep the measurement
chamber covered at any time.
a0003917
Fig. 5: Desiccant installation
1. Unscrew the four corner thumbscrews
(pos.1).
2. Remove the electronics half of the
instrument (pos. 2).
3. Open the bag protecting the desiccant pouch
(pos. 4) and install it with the humidity
indicator (pos. 3) in the instrument base
(pos. 5).
!Note!
Once the bag is opened, install the desiccant
pouch immediately to prevent premature
degradation of the desiccant.
4. Replace the electronics half of the
instrument in its location.
5. Tighten the four corner thumbscrews again.
3
4
5
1
2
1