Endress+Hauser Turbimax CUE21 User manual

Products Solutions Services
Operating Instructions
Turbimax CUE21 / CUE22
Turbidimeter for online measurement
OUT
IN
OUT
MODE
EXIT E
Turbimax CUE21
BA00395C/07/EN/13.15
71292787
工程师电话（微信）15915717832

Table of contents Turbimax CUE21 / CUE22
2 Endress+Hauser
Table of contents
1 Document information .............. 3
1.1 Safety information ...................... 3
1.2 Symbols .............................. 3
2 Basic safety instructions ............ 4
2.1 Requirements for personnel ............... 4
2.2 Designated use ........................ 4
2.3 Workplace safety ....................... 4
2.4 Operational safety ...................... 5
2.5 Product safety ......................... 5
3 Incoming acceptance and product
identification ....................... 6
3.1 Incoming acceptance .................... 6
3.2 Product identification .................... 6
3.3 Scope of delivery ....................... 7
3.4 Certificates and approvals ................ 7
4 Installation ........................ 8
4.1 Installation requirements ................. 8
4.2 Mounting the measuring device ............ 9
4.3 Post-installation check .................. 12
5 Electrical connection .............. 13
5.1 Connection requirements ................ 13
5.2 Connecting RS-485 cables ............... 14
5.3 Connecting relays ..................... 14
5.4 Connecting the current output ............ 14
5.5 Ensuring the degree of protection .......... 14
5.6 Post-connection check .................. 14
6 Operation options ................. 16
6.1 Overview ............................ 16
6.2 Operating concept ..................... 16
7 Commissioning .................... 18
7.1 Function check ....................... 18
7.2 Switching on the measuring device ......... 18
8 Operation ......................... 19
8.1 Configuring the measuring device .......... 19
8.2 Instrument calibration .................. 23
9 Diagnostics and troubleshooting ... 27
9.1 General troubleshooting ................. 27
9.2 Diagnostic information on local display ...... 27
10 Maintenance ...................... 29
10.1 Cleaning the flow-through cuvette ......... 29
10.2 Replacing the flow-through cuvette ........ 29
10.3 Replacing the desiccant pouch ............ 30
11 Repairs ........................... 31
11.1 Spare parts .......................... 31
11.2 Replacing the electronics module .......... 31
11.3 Replacing the lamp .................... 31
11.4 Return .............................. 32
11.5 Disposal ............................ 32
12 Accessories ....................... 33
12.1 Calibration solutions ................... 33
12.2 Flow chamber ........................ 33
12.3 Passive barrier ........................ 33
13 Technical data .................... 34
Index .................................. 37
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Document information
Endress+Hauser 3
1 Document information
1.1 Safety information
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
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
工程师电话（微信）15915717832

Basic safety instructions Turbimax CUE21 / CUE22
4 Endress+Hauser
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
The turbidimeters from the Turbimax CUE21 / CUE22 series are designed for online
measurement of turbidity in process water and drinking water.
The infrared device CUE21 meets the design criteria for turbidity measurement specified
by ISO 7027 and DIN 27027.
The white light device CUE22 meets the design criteria specified by US EPA 180.1.
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 European standards for industrial applications.
• The electromagnetic compatibility indicated applies only to a product that has been
connected in accordance with these Operating Instructions.
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Basic safety instructions
Endress+Hauser 5
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.
工程师电话（微信）15915717832

Incoming acceptance and product identification Turbimax CUE21 / CUE22
6 Endress+Hauser
3 Incoming acceptance and product
identification
3.1 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.
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
• Safety information and warnings
Compare the data on the nameplate with your order.
3.2.2 Product identification
Product page
www.endress.com/cue21
www.endress.com/cue22
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 the product page for your product on the Internet.
2. In the navigation area on the right-hand side, select "Check your device features"
under "Device support".
An additional window opens.
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Incoming acceptance and product identification
Endress+Hauser 7
3. Enter the order code from the nameplate into the search field.
You will receive information on each feature (selected option) of the order code.
3.3 Scope of delivery
The scope of delivery comprises:
• 1 turbidimeter Turbimax CUE21 or CUE22
• 1 field terminal box
• 1 packet of desiccant
• 1 tubing kit including
– 1 shutoff clamp
– 1 flow controller
– 2 connecting tubes with fittings for flow-through assembly
– 1 vent screw for drain tube (used in pressurized systems)
• 1 Operating Instructions BA00395C
If you have any questions, please contact your supplier or your local sales center.
3.4 Certificates and approvals
The product meets the requirements of the harmonized European standards. As such, it
complies with the legal specifications of the EC directives. The manufacturer confirms
successful testing of the product by affixing to it the  mark.
工程师电话（微信）15915717832

Installation Turbimax CUE21 / CUE22
8 Endress+Hauser
4 Installation
4.1 Installation requirements
4.1.1 Measuring system
A complete measuring system comprises:
• Turbimax turbidimeter with installed cuvette and desiccant pouch
• Connecting tube with
– fittings for flow-through assembly
– Shutoff clamp
– Flow controller
– Vent screw for drain tube (in pressurized systems)
• Sensor interconnect cable
1
2
4
5
6
7
8
MODE
EXIT
E
Turbimax CUE21
3
A0025595
 1 Turbimax CUE21 (example)
1 Shutoff clamp 5 Sensor interconnect cable
2 Connection for intake tube 1) 6 Vent for drain tube
3 Flow assembly 7 Connection for drain tube 1)
4 Flow controller 8 Terminal box
1) OD 8 mm (0.31 inch), ID 4.75 mm (3/16 inch)
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Installation
Endress+Hauser 9
4.1.2 Mounting dimensions
OUT
OUT
IN
E
200 (8)
M6 (¼)
207.7
(8.18)
90.2 (35)
50.8 (2.0)
M4
(3/16)
30.2
(1.19)
147.7 (5.81)
87.3 (3.44)
A0025606
 2 Mounting dimensions - front view
131.6 (5.16)
347.2 (13.7)
196.8 (7.75)
61.8
(2.43)
A0025608
 3 Mounting dimensions - lateral view
Dimensions in mm (inch)
4.2 Mounting the measuring device
4.2.1 Wall mounting
The device is designed for wall mounting. If wall mounting is not practicable, the device
can be mounted on any suitable level surface.
• Ensure that the temperature does not exceed the maximum permitted operating
temperature range (0 to 50 °C (32 to 122 °F)).
• Leave approx. 20 cm (8 inch) of free space above the device to ensure that there is
sufficient room for calibration and cuvette maintenance.(→  2)
• Mount the device as close as possible to the sampling point to ensure fast response times
(within 2 to 3 m (6 to 10 ft)).
1. Drill mounting holes for the M4 mounting screws to install the field terminal box.
2. Drill mounting holes for the M6 mounting screws to install the device housing on top
of the terminal box.
3. Mount the terminal box.
4. Mount the rest of the device on top of the terminal box.
4.2.2 Installing the desiccant pouch
The device 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
工程师电话（微信）15915717832

Installation Turbimax CUE21 / CUE22
10 Endress+Hauser
air. A fan located inside the device ensures that heated air circulates continuously around
the optical path and the flow-through cuvette.
3
4
5
1 2
1
A0026679
 4 Installing the desiccant pouch
1 Securing screws
2 Electronic component
3 Humidity indicator
4 Desiccant pouch
5 Base of housing
1. Unscrew the four corner screws (item 1).
2. Remove the electronic component of the device (item 2).
3. Open the bag protecting the desiccant pouch (item 4), and place the pouch with the
humidity indicator (item 3) in the base of the housing (item 5).
Ensure that you install the desiccant pouch immediately after opening the bag to
prevent premature degradation of the desiccant.
4. Return the electronic component of the device to its original position.
5. Tighten the four corner screws.
To prevent premature saturation of the desiccant, it is recommended that you keep
the measurement chamber covered at all times.
4.2.3 Plumbing the measuring device
• The device requires only a very low overpressure in the flow assembly to operate,
approx. 0.069 bar (1 psi).
• The flow controller is rated for a maximum overpressure of 13.8 bar (200 psi).
• The minimum flow rate for the flow-through cuvette is 100 ml/min to 1 l/min
(0.026 to 0.26 US gal/min).
• The maximum permitted medium temperature is 50 °C (122 °F).
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Installation
Endress+Hauser 11
A0025699
 5 Recommended plumbing
1 Connection for intake tube 7 Connection for drain tube
2 Shutoff clamp 8 Vent for drain tube
3 Connection for intake tube 9 Connection for drain tube
4 Connection for intake tube 10 Use
5 Connection for drain tube 11 Nut
6 Flow controller 12 Tubing (not supplied)
The device is equipped for plumbing using tubing with OD 8 mm (0.31 inch),
ID 4.75 mm (3/16 inch). If the device is going to be exposed to sunlight, opaque
tubing should be used to prevent algae growth.
Plumbing the device
1. Push the shutoff clamp (item 2) over one of the supplied tubes.
2. Connect the tube to the upper part of the intake tubing connection (item 3) and to
the connection on top of the device (item 1).
3. Push the flow controller (item 6) over the second tube supplied.
4. Connect the tube to the upper part of the drain tubing connection (item 7) and to the
connection on top of the device (item 5).
5. Connect a tube with an internal diameter of 4.75 mm (3/16 inch) to the lower part
of the intake tubing connection (item 4) to supply the sensor with a reliable sample
flow.
6. Connect a tube with an internal diameter of 4.75 mm (3/16 inch) to the lower part
of the drain tubing connection (item 9) to route the sensor drain to a suitable drain
on site.
The vent in the drain tube (item 8) allows for pressure compensation, thus
helping to prevent bubble formation in the cuvette.
7. If your CUE21 / CUE22 is integrated in a high-pressure system,
insert the 6:32 seal screw provided into the vent hole and tighten it.
工程师电话（微信）15915717832

Installation Turbimax CUE21 / CUE22
12 Endress+Hauser
4.3 Post-installation check
1. After mounting, check all the connections to ensure they are secure and leak-tight.
2. Check all cables and hoses for damage.
3. Check whether the cables are routed such that they are free from electromagnetic
interference influences.
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Electrical connection
Endress+Hauser 13
5 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.
5.1 Connection requirements
‣The device is equipped with a power supply of 100 to 240 V AC, 47 to 63 Hz. Before
connecting the device, verify that the line voltage matches these specifications.
‣Place a circuit breaker upstream from the mains connection to facilitate maintenance
work.
47-63 Hz
90-250 VAC
4-20mA/
RS-485
+SHLD
AB
-
TB2
L4
TB4
ISL1
SHLD
ORG
BLK
L7
L3
RED
L5
L6
L2
L1
RLY1
D1
2
NO
ALARM
NC
COM
TB3
1
NO
ALARM
NC
COM
TB1
RLY2
EMCF1
R3
R4
D2
Q1
R1
Q2
R2
YEL
WHT
GRN
BRN
1
2
3
4
5
6
7
8
100-240 VAC
A0025701
 6 Field terminal box
1 Terminal strip, power supply 5 4 to 20 mA / RS485 terminal strip
2 Power cable strain relief 6 Sensor wiring
3 Power cable gland 7 4 to 20 mA / RS485 cable gland
4 Alarm terminal strip, 240 VA, 2 A 8 Alarm cable gland
工程师电话（微信）15915717832

Electrical connection Turbimax CUE21 / CUE22
14 Endress+Hauser
5.2 Connecting RS-485 cables
The digital RS-485 half-duplex (2-wire) interface operates with differential levels that are
not susceptible to electrical interference. That is why cable lengths of up to 914 m (3000
ft) can be used. The last device on each bus may require terminating with a 120-ohm
resistor to eliminate signal reflection on the line.
‣Do not run the RS-485 cables in the same conduit as the power cable.
If you are using the device in a process control system without galvanically isolated
inputs, you must use a passive barrier e.g. RB223 (see "Accessories") to connect the
CUE21/22.
5.3 Connecting relays
The relays for alarm 1 and alarm 2 are mechanical relays rated at 240 V AC and 2 A.
‣Please note that the relays are labeled NO (Normally Open), NC (Normally Closed) and
C (Common).
The alarm relays are configured to be "fail-safe" i.e. under normal operating conditions, the
device is supplied with current and is not in an alarm condition. How these alarm relays
function is described in the "Configuring the alarms" section.
5.4 Connecting the current output
The 4-20 mA output is supplied by a 15 V DC power source and can operate recording
devices with loads of up to 600 Ω. This output is isolated from line power and earth
ground.
‣Do not run the analog current cables in the same conduit as the power cable.
How this output works is described in the "Selecting the output" section.
5.5 Ensuring the degree of protection
Only the mechanical and electrical connections which are described in these instructions
and which are necessary for the required, designated use, may be carried out on the device
delivered.
‣Exercise care when carrying out the work.
Otherwise, the individual types of protection (Ingress Protection (IP), electrical safety, EMC
interference immunity) agreed for this product can no longer be guaranteed due, for
example, to covers being left off or cable (ends) which are loose or insufficiently secured.
5.6 Post-connection check
Device condition and specifications Notes
Is there any external damage to the device and cables? Visual inspection
Electrical connection Notes
Are the installed cables strain-relieved and not twisted? Visual inspection
Cable run without loops and cross-overs?
Is the cable type run completely isolated at the point of installation? Power cables / signal lines
Are all the screws terminals properly tightened?
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Electrical connection
Endress+Hauser 15
Electrical connection Notes
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 the PE distributor blocks grounded (if present)? Grounding is carried out at the point of
installation.
工程师电话（微信）15915717832

Operation options Turbimax CUE21 / CUE22
16 Endress+Hauser
6 Operation options
6.1 Overview
6.1.1 Display and operating elements
MODE
EXIT E
47
5
AUTO
CAL
CONFIG
Å
00000. . : .
0000 OFFSET
1
2
8
6
3
A0025727
1 Displays turbidity value and user guidance
during configuration
5 Icon indicates use of an access code
2 Indicates operating mode: AUTO
(measurement), CAL (calibration), CONFIG
(configuration)
6 Indicates OFFSET mode
3 Displays error message and user guidance 7 Confirms a selected option or mode
4 Switches between modes 8 Keys used to change settings
6.1.2 Key functions
Switches between the operating modes of the device: CAL, CONFIG and AUTO (measurement)
Confirms the highlighted or selected option or mode
Scrolls up through the menu.
Increases numerical values.
Scrolls down through the menu.
Decreases numerical values.
6.2 Operating concept
6.2.1 Access code
The device is equipped with a security feature. An access code protects it from
unintentional or undesired changes to the configuration and to the calibration data. The
access code can be enabled in the configuration mode.
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Operation options
Endress+Hauser 17
A0026267
 7 Access protection enabled: Prompt to enter code
‣If access protection is enabled:
Enter the code 333.
 You can access the CAL or CONFIG menus.
The access code cannot be changed.
6.2.2 Menu structure
The device has three operating modes that can be selected using the key:
•AUTO
Standard operating mode for displaying current measured values
• CAL
Calibration mode for performing calibration procedures
• CONFIG
Setup mode for configuring customer-specific settings
Configuration menu (CONFIG)
The configuration menu is split into several submenus. The following submenus are
available:
• Output selection
• RS-485 port configuration
• Alarm configuration
• Security access configuration
• Offset configuration
• Advanced settings
The extended settings are grouped together to prevent them from being modified
accidentally:
– Response speed
– Displayed resolution
– LCD backlight brightness
– Displayed units
– Ultrasonic cleaning
– RS485 parameters
– Desiccant alarm
For a detailed explanation of the submenus, see the "Instrument configuration"
section. (→  19)
工程师电话（微信）15915717832

Commissioning Turbimax CUE21 / CUE22
18 Endress+Hauser
7 Commissioning
7.1 Function check
‣Verify that all connections are correct.
‣In particular, verify that all tubes are firmly attached and are not leaking.
‣Ensure that the supply voltage is within the permitted range of 100 to 240 V AC!
7.2 Switching on the measuring device
Familiarize yourself with the operation of the device prior to switching it on. To do so, read
the "Basic safety instructions" and "Operation" sections in particular.
1. Switch on the power supply to the device.
2. Wait until the device has warmed up (typically 45 to 60 minutes when
commissioning the device for the first time).
When a continuous process stream is flowing through the device, the device will
output the turbidity level measured in the sample to the LC display. In addition,
the equivalent signal is output on the analog (4-20 mA) or digital output,
depending on the options selected.
3. Configure the device according to your needs.
工程师电话（微信）15915717832

Turbimax CUE21 / CUE22 Operation
Endress+Hauser 19
8 Operation
8.1 Configuring the measuring device
8.1.1 Selecting the output
Function Options Info
Output (O/P)
AUTO
CAL
CONFIG
4-20
O/P
Å
• 4-20
•485
• OFF
4-20
4 mA value 0 to 1000 NTU Set the lower turbidity limit value (LOLM) that
corresponds to the 4 mA output level.
20 mA value 0 to 1000 NTU Set the upper turbidity value (UPLM) that
corresponds to the 20 mA output level.
485
Baud • 1200
• 2400
• 4800
• 9600
• 19200
Set the correct baud rate for operation of the I/O
port.
Addr 1 ... 255 Select the desired device address.
MBUS • ASCII
•RTU
Select ASCII or RTU.
8.1.2 Configuring the alarms
Function Options Info
Alarm 1 (ALM1)
AUTO
CAL
CONFIG
HI
ALM1
Å
• HI
•LO
• OFF
Set point (S/P) 0 to 1000 NTU Set the desired alarm set point.
Delay on (DLY▴) 1 to 30 s Set the desired number of seconds for the "Delay
on" function.
Delay off (DLY▾) 1 to 30 s Set the desired number of seconds for the "Delay
off" function.
Alarm 2 (ALM2) • HI
•LO
• OFF
Set point (S/P) 0 to 1000 NTU Set the desired alarm set point.
工程师电话（微信）15915717832

Operation Turbimax CUE21 / CUE22
20 Endress+Hauser
Function Options Info
Delay on (DLY▴) 1 to 30 s Set the desired number of seconds for the "Delay
on" function.
Delay off (DLY▾) 1 to 30 s Set the desired number of seconds for the "Delay
off" function.
8.1.3 Access code
Function Options Info
Alarm 1 (ALM1)
AUTO
CAL
CONFIG
On
Å
CODE
• On
•OFF
If the security feature is switched on to restrict
access, you are required to enter an access code if
you wish to switch from AUTO to a different
operating mode. The only valid code is 333. This
code cannot be changed.
8.1.4 Advanced settings
Function Options Info
Extended settings (EXTD)
AUTO
CAL
CONFIG
On
Å
EXTD
• On
•OFF
Switch on the "Extended settings" function to access
the configuration of the following options:
• Response speed
• Displayed resolution
• LCD backlight brightness
• Units
• Ultrasonic cleaning
• RS-485 parameters
• Desiccant alarm
Response speed
Function Options Info
Response speed (RESP)
AUTO
CAL
CONFIG
10
Å
RESP
1 to 100 %
Factory setting: 10
Select the desired response speed for the NTU
values that are displayed and output.
Select the lowest speed (highest number) to avoid
displaying the effects of air and other anomalies.
Select the highest speed if there are rapid changes
taking place in the process that require monitoring.
The displayed number is a relative speed. The
approximate response time (in seconds) is
calculated by multiplying the displayed number by
5.
Displayed resolution
Function Options Info
Resolution (RES)
AUTO
CAL
CONFIG
0.01
Å
RES
1 to 0.0001
Factory setting: 0.01
For readings below 10 NTU the device can display
values with a resolution of up to four digits to the
right of the decimal point.
工程师电话（微信）15915717832