ProMinent DULCO turb C Series, TUC 1, TUC 2, TUC 4, TUC 3 Assembly And Operating Instructions Manual

Assembly and operating instructions

DULCO® turb C
Turbidity sensor

Please carefully read these operating instructions before use! · Do not discard!

The operator shall be liable for any damage caused by installation or operating errors!

Technical changes reserved.

Part no. 986062 BA DT 034 01/11 EN

ProMinent Dosiertechnik Heidelberg GmbH

Im Schuhmachergewann 5 - 11

69123 Heidelberg

Telephone: [phone]

Fax: [phone]

email: [e-mail]

Internet: www.prominent.com

986062, 1, en_GB

© 2011

2

Supplemental instructions

General non-discriminatory approach

In order to make it easier to read, this
document uses the male form in
grammatical structures but with an
implied neutral sense. It is aimed
equally at both men and women. We
kindly ask female readers for their
understanding in this simplification of
the text.

Supplementary information

Read the following supplementary
information in its entirety!

The following are highlighted sepa‐
rately in the document:

n Enumerated lists

Instructions

Results of the instructions

ð

Information

Safety information are provided with
detailed descriptions of the endan‐
gering situation, see

Ä Chapter 1.1

„Explanation of the safety informa‐
tion“ on page 6

This provides important informa‐
tion relating to the correct opera‐
tion of the system or is intended to
make your work easier.

Safety information

3

Table of contents

Table of contents

Introduction................................................................................................ 6

1

1.1 Explanation of the safety information................................................. 6

1.2 Users' qualifications........................................................................... 8

2 Safety and responsibility.......................................................................... 10

2.1 General safety information .............................................................. 10

2.2 Correct and proper use.................................................................... 11

3 Functional description / product identification.......................................... 12

3.1 Scope of delivery............................................................................. 16

4 Mounting and Installation......................................................................... 17

4.1 Wall mounting.................................................................................. 18

4.2 Installation (hydraulic)...................................................................... 21

4.3 Installation (electrical)...................................................................... 23

5 Operating diagram................................................................................... 26

5.1 Overview of device /Control elements............................................. 26

5.2 Overview of operating structure....................................................... 27

6 Commissioning........................................................................................ 30

6.1 Load drying agent............................................................................ 30

6.2 Routine measurement..................................................................... 33

6.3 Access code.................................................................................... 34

6.4 Device configuration........................................................................ 35

6.4.1 Selecting the output...................................................................... 35

6.4.2 Configuration of fault current (ERLV)............................................ 37

6.4.3 Configure alarm ........................................................................... 38

6.4.4 OFFSET configuration.................................................................. 41

6.4.5 Extended settings......................................................................... 43

7 Operation................................................................................................. 55

7.1 Calibrate sensor............................................................................... 55

7.1.1 Standard solutions for calibration................................................. 55

4

Table of contents

7.1.2 Perform calibration........................................................................ 59

8 Maintenance, troubleshooting and repair................................................ 66

8.1 Information about fault maintenance............................................... 66

8.1.1 System error messages................................................................ 67

8.1.2 Faults in the process..................................................................... 67

9 Spare parts and accessories................................................................... 69

Standards complied with.......................................................................... 70

10

11 Disposal of used parts............................................................................. 71

12 Declaration of Conformity........................................................................ 72

13 Index........................................................................................................ 73

5

Introduction

1 Introduction

Data and functions

This operating manual provides infor‐
mation on the technical data and
functions of the DULCO®
bidity sensor.

turb C tur‐

DANGER!

Nature and source of the danger

Consequence: Fatal or very
serious injuries.

1.1 Explanation of the safety information

Introduction

These operating instructions provide
information on the technical data and
functions of the product. These oper‐
ating instructions provide detailed
safety information and are provided
as clear step-by-step instructions.

The safety information and notes are
categorised according to the following
scheme. A number of different sym‐
bols are used to denote different sit‐
uations. The symbols shown here
serve only as examples.

Measure to be taken to avoid this
danger

Danger!

Denotes an immediate threat‐

–

ening danger. If this is disre‐
garded, it will result in fatal or
very serious injuries.

WARNING!

Nature and source of the danger

Possible consequence: Fatal or
very serious injuries.

Measure to be taken to avoid this
danger

Warning!

Denotes a possibly hazardous

–

situation. If this is disregarded,
it could result in fatal or very
serious injuries.

6

Introduction

CAUTION!

Nature and source of the danger

Possible consequence: Slight or
minor injuries, material damage.

Measure to be taken to avoid this
danger

Caution!

Denotes a possibly hazardous

–

situation. If this is disregarded,
it could result in slight or minor
injuries. May also be used as
a warning about material
damage.

NOTICE!

Nature and source of the danger

Damage to the product or its sur‐
roundings

Measure to be taken to avoid this
danger

Type of information

Hints on use and additional infor‐
mation

Source of the information, addi‐
tional measures

Information!

–

Denotes hints on use and
other useful information. It
does not indicate a hazardous
or damaging situation.

Note!

Denotes a possibly damaging

–

situation. If this is disregarded,
the product or an object in its
vicinity could be damaged.

7

Introduction

1.2 Users' qualifications

WARNING!

Danger of injury with inadequately qualified personnel!

The operator of the plant / device is responsible for ensuring that the qualifi‐
cations are fulfilled.

If inadequately qualified personnel work on the unit or loiter in the hazard
zone of the unit, this could result in dangers that could cause serious injuries
and material damage.

– All work on the unit should therefore only be conducted by qualified per‐

sonnel.
Unqualified personnel should be kept away from the hazard zone

–

Training Definition

Instructed per‐
sonnel

An instructed person is deemed to be a person who has
been instructed and, if required, trained in the tasks
assigned to him/her and possible dangers that could
result from improper behaviour, as well as having been
instructed in the required protective equipment and pro‐
tective measures.

Trained user A trained user is a person who fulfils the requirements

made of an instructed person and who has also received
additional training specific to the system from ProMinent
or another authorised distribution partner.

Trained qualified
personnel

A qualified employee is deemed to be a person who is
able to assess the tasks assigned to him and recognize
possible hazards based on his/her training, knowledge
and experience, as well as knowledge of pertinent regu‐
lations. The assessment of a person's technical training
can also be based on several years of work in the rele‐
vant field.

8

Introduction

Training Definition

Electrician Electricians are deemed to be people, who are able to

complete work on electrical systems and recognize and
avoid possible hazards independently based on his/her
technical training and experience, as well as knowledge
of pertinent standards and regulations.

Electricians should be specifically trained for the working
environment in which the are employed and know the
relevant standards and regulations.

Electricians must comply with the provisions of the appli‐
cable statutory directives on accident prevention.

Customer Service
department

Customer Service department refers to service techni‐
cians, who have received proven training and have been
authorised by ProMinent to work on the system.

Note for the system operator

The pertinent accident prevention regulations, as well as all other generally
acknowledged safety regulations, must be adhered to!

9

Safety and responsibility

2 Safety and responsibility

2.1 General safety information

WARNING!

WARNING!

Live parts!

Possible consequence: Fatal or
very serious injuries

– Measure: Disconnect the

mains power supply prior to
opening the housing

Disconnect damaged, defec‐

–

tive or manipulated devices
from the power supply

WARNING!

Unauthorised access!

Possible consequence: Fatal or
very serious injuries.

– Measure: Ensure that there

can be no unauthorised
access to the unit

Operating errors!

Possible consequence: Fatal or
very serious injuries.

– The unit should only be oper‐

ated by adequately qualified
and technically expert per‐
sonnel

Please also observe the oper‐

–

ating instructions for control‐
lers and fittings and any other
component groups, such as
sensors, sample water
pumps ...

– The operator is responsible

for ensuring that personnel
are qualified

CAUTION!

Electronic malfunctions

Possible consequence: Material
damage right through to destruc‐
tion of the unit

10

– The mains connection cable

and data cable should not be
laid together with cables that
are prone to interference

Measure: Take appropriate

–

interference suppression
measures

NOTICE!

Safety and responsibility

2.2 Correct and proper use

Correct and proper use

Damage to the product or its sur‐
roundings

– The unit is not intended to

measure or regulate gaseous
or solid media

The unit may only be used in

–

accordance with the technical
details and specifications pro‐
vided in these operating
instructions and in the oper‐
ating instructions for the indi‐
vidual components

NOTICE!

Correct sensor operation

Damage to the product or its sur‐
roundings

– Correct measuring and control

is only possible if the sensor is
working perfectly

Check and calibrate the

–

sensor regularly

NOTICE!

Correct and proper use

The device is designed to
measure the turbidity of water.

The unit may only be used in
accordance with the technical
details and specifications provided
in this operating manual and in
the operating manuals for the indi‐
vidual components (such as, for
example, controllers, sensors, fit‐
tings, calibration devices,
metering pumps, etc.).

Any other uses or modifications
are prohibited.

11

Functional description / product identification

3 Functional description / product identification

Brief functional description

The DULCO® turb C is designed for the online measuring of turbidity in
untreated water, process water and treated process water in drinking water pro‐
cessing plants.

The DULCO® turb C product range is comprised of four device types:

Types TUC 1 and TUC 3 work with infrared light and fulfil the requirements of
the international standards ISO 7027 and DIN EN 27027.

Types TUC 2 and TUC 4 work with white light and fulfil USA standard US EPA

180.1.

Both device types can be equipped with ultrasonic cleaning (TUC 3 / TUC 4) or
without ultrasonic cleaning (TUC 1 / TUC 2). The sample cell ultrasonic cleaning
system extends the calibration and maintenance intervals in media where
coating formation is common.

DULCO® turb C

Part
number

IOS
7027

US EPA

180.1

Ultrasonic cleaning

DIN EN
27027

TUC 1 1037696 Infrared No

TUC 2 1037695 White

No

light

TUC 3 1037698 Infrared Yes

TUC 4 1037697 White

Yes

light

12

Functional description / product identification

An inlet side pressure regulating valve is standard. The DULCO turb C pressure
regulating valve reduces the pressure from up to 13.8 bar (200 PSI) to 1.0 bar
(15 PSI).

Specifications

Measuring

0 – 1000.0 NTU

range

Accuracy limit ± 2 % of the displayed value or ± 0.02 NTU under 40 NTU,

depending on which value is the greater.

± 5 % of the displayed value above 40 NTU

Resolution 0.0001 NTU below 10 NTU

Response time configurable

Display Multiple row LCD display with backlighting

Alarm Two programmable alarms, 120 - 240 VAC, 2 A Form C

relay

Analogue

4 ... 20 mA, 600 Ω

output

Communication

Bi-directional RS-485, Modbus

interface

Maximum
water pressure

Integrated pressure regulating valve regulates 1380 kPa
(200 PSI). in relation to the flow rate

Flow rate 6 l/h ... 60 l/h

Operating tem‐

1 °C ... 50 °C

perature

13

Functional description / product identification

Materials that
come into con‐

Polyimide (PA), silicone, polypropylene (PP), stainless steel,

borosilicate glass
tact with the
media

Voltage supply 100 – 240 VAC, 47 – 63 Hz, 80VA

Galvanic Isola‐
tion

Ambient condi‐
tions

dual insulation, degree of interference overvoltage category

II

Not suitable for operation outdoors.

Operation altitude maximum 2000 m (above sea level).

maximum 95 % relative air humidity (non-condensing).

Enclosure

IP 66
rating

Standards
compliant with

Shipping

USEPA 180.1 for type

27027 for type

„White light“

approx. 2.5 kg

„Infrared“

weight

Option: ultrasonic cleaning (TUC 3 /
TUC 4)

The

„Ultrasonic cleaning“

option is
used in order to continuously clean
the sample chamber. It serves neither
to clean previously soiled sample
chambers, nor can it replace manual

operate the system. The system emits
an ultrasonic frequency via a spring to
a piezoelectric transducer, which is
connected to the base of the flow­through cuvette. The cuvette's detec‐
tion system only works in

[AUTO mode]

cleaning. However, the cleaning inter‐
vals for manual cleaning can be sig‐
nificantly extended by the use of this
system. The use of a sample
chamber with an

transducer“

„ultrasound

is necessary in order to

; ISO 7027 and DIN EN

.

14

Functional description / product identification

The system can detect the following
fault states:

n Incorrect cuvette installed
n Error occurred in transducer
n Transducer has no contact to the

spring

If an error occurs, the message

[CLN]

appears in the lower part of the LCD
display. An alarm is triggered and 2
mA is applied to the current output.

The alarm relay is triggered if the
alarm funktion in
to

[ERROR]

[ALM1/ALM2]

is set

The 4 ... 20 mA output is set to 0, 2, 4
mA if the funktion

[error level] [ERLV]

was set to the corresponding mA­level.

Interface RS-485

The DULCO® turb C

offers basic com‐
munications functions in combination
with straightforward applications, such
as

[Hilgraeve HyperTerminal]

(included with most

[Microsoft Windows software]

pack‐

ages). In addition, you can also use

[Visual Basic]

as well as other pro‐

grams.

15

Functional description / product identification

3.1 Scope of delivery

Packaging material

Dispose of packaging material environmentally. All packaging components
are provided with their corresponding recycling

code.

The following components are included as standard with a DULCO® turb C:

Description Quan‐

tity

DULCO® turb C with terminal boxes and integrated und flow fittings

1

Operating Manual 1

Packet drying agent 1

Cuvette 1

Hose kit

1

n Shut-off clamp (1 piece)
n Back-pressure valve (1 piece)
n Connection hoses with connection pieces for pressure regu‐

lating valves (2 pieces)

n Bleed screw (used in pressurised systems) (1 piece)

Remove the DULCO® turb C from the packaging. Carefully check the compo‐
nents. Ensure that no visible damage has been caused during shipping. If the
components supplied fail to comply with the order, please contact your local dis‐
tributor or the ProMinent customer services department immediately.

16

4 Mounting and Installation

Mounting and Installation

NOTICE!

Drying agent

Possible device malfunctions due
to moisture in the device.

Install the drying agent bag before
initial commissioning, see

Ä Chapter 6.1 „Load drying
agent“ on page 30

NOTICE!

Mounting position and conditions

– The installation (electrical)

may only take place after
mounting (mechanical)

Ensure that there is unim‐

–

peded access for operation

– Ensure for secure and vibra‐

tion-free fastening.
– Avoid direct sunlight
– Permissible ambient tempera‐

ture for the sensor at fitting

position: 1 ... 50℃ at max.

95% relative air humidity (non-

condensing)
– Consider the permissible

ambient temperature and the

connected components

Reading and operating posi‐

tion

–

Install the device in a favour‐
able position for reading and
operating (preferably at eye
level)

Mounting position

–

Leave sufficient free space for
the cables and necessary
work

Packaging material

Dispose of packaging material
environmentally. All packaging
components are provided with

their corresponding recycling
code.

17

Mounting and Installation

4.1 Wall mounting

Installation (mechanical)

NOTICE!

Distance to the sampling site

Install the sensor no further than maximum 3 meters from the sampling site.
This is the only way to ensure a quick response time from the system.

Free space above the sensor

Allow for at least 200mm free space above the sensor for all required work
on the sensor.

Fasten the sensor with four M6 screws and the terminal box with two M4
screws.

18

Mounting and Installation

Fig. 1: The diagram is not to scale. It is for information only. All values given in
millimetres.

A Terminal box
B

DULCO® turb C housing

19

Mounting and Installation

Fig. 2: The diagram is not to scale. It is for information only. All values given in
millimetres.

A Terminal box
B

DULCO® turb C housing

1. Fasten the terminal box (A) to the wall with two M4 screws

2.

Fasten the DULCO® turb C housing (B) above the terminal box to the wall
with four M6 screws

20

4.2 Installation (hydraulic)

Mounting and Installation

Leakage on the bleed screw

CAUTION!

Free outlet at sensor outlet

Feed the sample water which has
flowed through the sensor to a
free drain. The sampled water
may not be fed back into the
process.

CAUTION!

Algae growth under the influence
of light

Possible algae growth if unsuit‐
able hoses are used.

Do not use transparent hoses if
the installation is subjected to
powerful sources of light. This
prevents the formation of algae in
the installation.

Slight leakage may occur at the
bore hole for the bleed screw
during the installation process.
This will cease as soon as normal
flow is established.

In the event that the installation
continues to leak permanently at
this point due to the high pressure
in this area, we recommend
sealing off the bore hole with the
sealing plug supplied. In order to
ensure free drainage, a bleed
option must be installed at
another area of the outlet in order
to avoid overpressure or under‐
pressure in the system.

Permissible operating param‐

eters

–

Maximum liquid temperature
50 °C

–

Maximum pressure 13.8 bar

–

Flow rate 6 ... 60 l/h

21

Mounting and Installation

Fig. 3: Recommended pipes for the sensor

I. Flow unit

4. Hose connector. 4.75 mm interior
II. Sensor unit with operating unit
III. Terminal box

1. Backpressure valve. To regulate

the flow and in order to remove
small air bubbles

22

5. Detail: Hose

6. Detail: Union nut hose connection

diameter, 8 mm external diam‐
eter. Hose connection to the sam‐
pling site

Mounting and Installation

2. Vent screw. For use on pressur‐
ised systems. Not used for pres‐
sureless systems

3. Hose connector. 4.75 mm interior
diameter, 8 mm external diam‐
eter. Hose connection for free
sample water outlet

4.3 Installation (electrical)

WARNING!

Live parts!

Possible consequence: Fatal or
very serious injuries

– Measure: Disconnect the

power supply before opening
the housing

Disconnect damaged, defec‐

–

tive or manipulated devices
from the power supply

– The provision of a suitable

isolating device (emergency­off switch, etc.) is the respon‐
sibility of the plant operator

7. Detail: Replacement hose con‐
nection

8. Shut-off clamp. To shut-off the
inlet in an emergency or for nec‐
essary work

The signal leads of the
DULCO® turb C may not be
routed alongside faulty cabling.
Faults could lead to malfunctions
in the DULCO® turb C.

NOTICE!

Do not route any RS-485 cables
in the same cable duct as the
power supply cable. This may
result in major anomalies.

23

A0518

Mounting and Installation

RS-485

The RS-485 digital interface (2 leads / half duplex) is characterised by a very
high tolerance to electromagnetic interference due to the symmetrical signal
transmission. This means that cable lengths of up to 900m can be used. The
final device on a bus must be equipped with a 120 ohm resistor, in order to
avoid signal overlapping.

In order to avoid damage, only separate and connect the RS-485 cable if the
DULCO® turb C is switched off.

Fig. 4: Cable assignment of the sensor

I. Power cable threaded connection

(supplied without power cable)
II. Alarm cable threaded connection
III. Sensor cable threaded connec‐

tion

1. Terminal Alarm 1 and Alarm 2

(0.25 - 1.5 mm2) maximum 2

ampere

24

3. Terminal box

4. Liquid-tight threaded connection

5. Sensor cable

6. Terminal power cable (0.25 - 1.5
mm2)

Mounting and Installation

2. Terminal 4-20 mA / RS 485 (0.25

- 1.5 mm2)

All terminals in the terminal box are labelled and are self-explanatory.

All cable bushings are equipped with blanks on shipping. These must be
removed as required.

Strip the Insulation on all cables to a length of 6 mm.

Equip all cables with strain relief.

Supply voltage: 100 - 240 VAC at 47 - 63 Hz

1. Release the four housing screws from the corners of the terminal box.

2. Lift off the terminal box cover.

3. Remove the blanks from the required bore holes

4. Guide the cables into the threaded connections

5. Connect the cables with the designated terminals.

6. Tighten the clamping nuts of the threaded connections so that they are
properly sealed

7. Place the terminal box cover back onto the terminal box

8. Manually tighten the housing screws

9. Once again check the seating of the seals and threaded connections. Pro‐
tection class IP 66 is only achieved if the control panel mounting is correct

25

Operating diagram

5 Operating diagram

Overview of device /Control elements

5.1

n Users' qualification: Instructed person, see

tions“ on page 8

Fig. 5: Overview of device /Control elements

1. LCD display

2. UP key

4. ENTER button

5. MODE/EXIT button

3. DOWN key

Ä Chapter 1.2 „Users' qualifica‐

Function Description

LCD display The parameters of the respective mode are shown on the

LCD display.

UP key To increase a displayed number

26

Operating diagram

Function Description

DOWN key To decrease a displayed number

ENTER button To apply, confirm or save a displayed value or status or

MODE/EXIT
button

In order to call-up and select the three optional modes

[CAL], [CONFIG]

5.2 Overview of operating struc‐

ture

The sensor is equipped with three
modes, which can be selected by
means of the MODE/EXIT button:

n

[AUTO mode]

display of the current measured
values

n

[CAL]

: Calibration mode for exe‐

cuting the calibration process

n

[CONFIG]

configuring customer-specific set‐
tings. Automatic switchover into
the mode
undertaken within 15 minutes

: Standard mode,

: Configuration mode for

[AUTO mode]

if no entry

and

[AUTO]

(measurement)

27

Operating diagram

Fig. 6: Overview of operating structure

28

Configuration menu

The configuration menu is subdivided
into several submenus, in order to
facilitate configuration.

The following submenus are avail‐
able:

Operating diagram

n Select the output

[O/P]

n Configuration of 4 ... 20 mA inter‐

face

[ERLV]

n Configuration of the alarm

[ALM1 / ALM2]

n Configuration of the offset

[OFST]

n Configuration of access protection

[CODE]

n Extended settings

[EXTD]

The procedure for configuring the
menu settings is described here

Ä Chapter 6.4 „Device configura‐
tion“ on page 35

.

The extended settings are grouped
together in order to prevent accidental
alteration.

n Speed of response
n Screen resolution
n LCD illumination brightness
n Displayed units
n Ultrasonic cleaning
n RS-485 parameters
n Drying agent alarm

[RESP]

[RES]

[BRT]

[UNIT]

[CLN]

[BITS]

[DESC]

The procedure for configuring the
extended settings is described here

Ä Chapter 6.4.5 „Extended set‐
tings“ on page 43

.

29

Commissioning

6 Commissioning

Unit NTU (optionally FNU)

NTU (Nephelometric Turbidity Unit) is a unit of measurement for measuring the
turbidity of liquids. Alternatively, the measurement can be expressed as FNU
(Formazine Nephelometric Unit), see
undertaken 1:1.

Measured values over 1000 NTU are outside of the sensor's measurement
range. Measured values over 1100 NTU cause the display to flash and a mes‐
sage to be displayed warning of excessive measured values.

Ä „Units“ on page 48

. The calculation is

During normal operation of the sensor, an arrow is positioned next to

[AUTO]

.
In this state, the lower row indicates the unit of measurement and the upper row
shows the current measured value.

Fig. 7: Display in automatic mode

6.1 Load drying agent

Remove transport mounting

The transport mounting must be removed before initial insertion of the drying
agent bag. This pipe can be subsequently disposed of.

30

Commissioning

The DULCO® turb C is equipped with an dehumidifying device. A drying agent
bag in the sensor serves to dry the air. The thermal discharge from the sensor is
used to heat the air. A fan mounted in the inner part of the sensor serves to cir‐
culate the warm air around the optical sleeve and cuvette. The DULCO® turb C
continuously monitors the state of the drying agent bag. As soon as the drying
agent needs to be exchanged, this is indicated in the lower row of the LCD dis‐
play; Warning

[DESC]

(for desiccant). Replacement drying agent bags can be

obtained from Prominent or from your local representative.

Saturated drying agent can cause an alarm to be triggered, in order to indicate
the requirement for exchange. Refer to

Ä „Drying agent alarm“ on page 51

31

Commissioning

NOTICE!

Seal sensor housing

Possibility of premature drying agent saturation.

A damaged seal can lead to premature saturation of the drying agent.

Check the seal every time the drying agent is exchanged. Correct the seal
seating or exchange it if necessary.

1. Release the four screws from the corners of the housing and remove the

upper part of the sensor

Fig. 8: Load drying agent

2.

Insert the drying agent immediately after opening the packaging, in
order to avoid premature saturation.

Remove the new drying agent bag (2) from the packaging and place it
together with the humidity indicator card (3) in the lower part of the sensor
(1). In doing so, place the humidity indicator card (3) on the new drying
agent bag (2).

32

Commissioning

3. Place the upper part back on the lower part and tighten the four screws
hand-tight.

The sensor must be reset in order to enable detection of the new

ð

drying agent. In order to do so, remove the sensor connection cable
for 2 seconds and then re-connect it. Otherwise the

[DESC]

warning

may be shown on the LCD display.

6.2 Routine measurement

Routine measurement: The turbidity
can be correctly measured approx. 45

- 60 minutes after beginning measure‐

ment / commissioning (warm-up
phase).

If a continuous process water flow
passes through the sensor, then the
sensor shows you the measured tur‐
bidity level of the sample on the LCD
display. In addition, a 4-20 mA signal
or a digital signal is given, depending
on the selected option.

33

A0519

Commissioning

6.3 Access code

The access code cannot be changed.

You can activate the access code for the sensor in the configuration menu. If
the access code is activated, then this is indicated in the lower right-hand sec‐
tion of the LCD display.

[MODE/EXIT button]

„Security“

.

-Symbol (1) displays, if you press the

Fig. 9: Access code

When one of the access code numbers if flashing, you can change the number
with the UP or DOWN button and confirm with the ENTER button.

Entering the access code

The access code (333) has to be entered in order to access the

„CONFIG“

menus.

„CAL“

or

1. The first number of the access code flashes. Select the correct number
with the UP or DOWN button and then press ENTER

The second number of the access code flashes.

ð

34

A0530

Commissioning

2. Select the correct number with the UP or DOWN button and then press
ENTER

The third number of the access code flashes.

ð

3. Select the correct number with the UP or DOWN button and then press
ENTER

If you have selected the valid access code, then you will now have

ð

access to the sensor's calibration mode. In the event that the access
code is incorrect, the sensor returns to AUTO mode.

Device configuration

6.4

6.4.1 Selecting the output

Fig. 10: Selecting the output

35

Commissioning

Function Options Info

Output (O/P)

n 4 - 20 mA
n 485
n off

4 - 20 mA

Value 4 mA 0 ... 1000 NTU Selection of the lower

turbidity limit value
(LOLM)✱, which corre‐
sponds to the output
value 4 mA.

Value 20 mA 0 ... 1000 NTU Selection of the upper

turbidity limit value
(UPLM)✱✱

, which corre‐
sponds to the output
value 20 mA.

✱ = a higher NTU value can be entered than for

„value 20 mA“

, in order to

reverse the sign of the output current

✱✱ = a lower NTU value can be entered than for

„value 4 mA“

, in order to

reverse the sign of the output current

485

Baud Value baud

n 1200

Selection of the baud
rate for the I/O interface

n 2400
n 4800
n 9600
n 19200

36

A0625

Commissioning

Function Options Info

Addr 1 ... 255 Selection of the device

address

MBUS ASCII

Selection ASCII or RTU

RTU

6.4.2 Configuration of fault current (ERLV)

Fig. 11: Configuration of fault current (ERLV)

The 4-20 mA signal output can be utilized in the event of a system error on the
DULCO® turb C in order to indicate the problem by activating the

[ERLV ON]

function. In doing so, fault currents of 4.00 mA, 2.00 mA or 0 mA can be
selected. In the event of an error, the configured current value is output to the
controller, regardless of which measured value is pending. If the function is
switched off by setting

[OFF]

then the 4-20 mA signal output remains unaffected

by fault conditions.

37

Commissioning

Select the desired fault current by pressing the buttons ▲
the ↲, in order to store the selected setting.

Function Options Info

Error Level (ERLV) OFF

0 mA

2 mA

4 mA

6.4.3 Configure alarm

Alarm function

The sensor is equipped with two inde‐
pendently programmable alarm
relays. Three items of information
have to be entered in order to fully
configure the alarms:

Alarm triggering in the event
of an internal system error
The relay produces an alarm in

the event of an internal system

n Alarm function: HI, LO, OFF or

ERROR

error, regardless of the configured
turbidity values.

n Alarm limit value (limit value at

which the alarm becomes active)

n Alarm delay time (how long the

limit value must be exceeded
before the alarm is activated and
the period of time before the
alarm is reset)

and ▼ and then press

38

Commissioning

You can either deactivate the alarm
(OFF) or program it so that it works in
accordance with one of the following
modes:

n Alarm HI: The relay triggers the

alarm in the event that the tur‐
bidity value exceeds the pro‐
grammed alarm value for at least
the specified period of time

n Alarm LO: The relay triggers the

alarm in the event that the tur‐
bidity value drops below the pro‐
grammed alarm value for at least
the specified period of time

n Alarm ERROR: The relay triggers

the alarm when an internal system
error occurs

Limit value alarm

The turbidity threshold at which the
alarm is triggered is referred to as the

„Limit value alarm“

. You can con‐
figure the limit value across the entire
display range of the device in steps of

0.01 NTU.

Delay period alarm

The alarm delay times prevent the
alarm from being triggered in the
event that the turbidity briefly exceeds
or drops below the threshold value.
The delay function works as follows:

n Delay time

bidity must exceed the

value alarm“

„Alarm on“

: The tur‐

„Limit

for a period of at
least the time configured here,
before the alarm will be triggered.
If the time for

„Delay alarm on“

is
set to 5 seconds and the turbidity
only exceeds

„Limit value alarm“

for 4 seconds, then the alarm will
not be triggered. However, if the
turbidity exceeds the

alarm“

for 5 seconds or longer,

„Limit value

then the sensor triggers an alarm.

n Delay time

bidity must drop below

value alarm“

„Alarm off“

: The tur‐

„Limit

for a period of at
least the number of seconds con‐
figured here, before the alarm will
be triggered. If the time for

alarm off“

is set to 5 seconds and

the turbidity only exceeds

value alarm“

for 4 seconds, then

„Delay

„Limit

the alarm will not be deactivated.
As soon as the turbidity remains
below

„Limit value alarm“

for at
least 5 seconds, the sensor deac‐
tivates the alarm.

39

A0531

Commissioning

Menu Alarm

Fig. 12: Menu Alarm

Function Options Info

Alarm 1 (ALM1)

or

Alarm 2 (ALM2)

n HI
n LO
n OFF
n ERROR

Select the alarm function

Limit value (S/P) 0 ... 1000 NTU Set the

alarm“

delay time alarm on
(DLY▲)

1 ... 30 s For the function

alarm on“

number of seconds.

Delay time alarm off
(DLY▼)

1 ... 30 s For the function

alarm off“

number of seconds.

40

„Limit value

on

„Delay

set the

„Delay

set the

A0624

Commissioning

6.4.4 OFFSET configuration

The OFFSET symbol is shows as soon as an offset is being used. The max‐
imum offset amounts to 1.00 NTU. If the device deviation is greater than 1
NTU, then it is recommended to carry out a complete calibration.

Fig. 13: OFFSET configuration

41

Commissioning

In certain circumstances it may be desirable to use an offset function in order to
balance the device, instead of performing a complete calibration (as described
under

Ä Chapter 7.1 „Calibrate sensor“ on page 55

). This procedure is not rec‐
ommended as a replacement for regular calibration, however, it can be used in
order to compensate for known minor deviations where measuring operations
cannot be interrupted. This balancing method means that the device only dis‐
plays precise turbidity values in the immediate vicinity of the sample value and
not across the entire measured range.

Proceed as follows in order to configure the offset:

1. Take a sample of the process water being monitored by the device and

make a note of the turbidity as indicated by the device.

2. Measure the turbidity value of the sample with the help of a calibrated

manual laboratory measuring device (reference device)

3. Compare the turbidity value indicated by the device with the value meas‐

ured by the reference device. If the values are extremely close to each
other (depending on the accuracy of the reference device), then no offset
configuration or calibration is required and the procedure can be aborted
at this point.

However, if the values differ significantly (however, less than 1 NTU),

ð

then proceed as follows in order to improve the turbidity value for the
device, so that the device matches the laboratory value.

4. Select the offset function by pressing

is positioned next to

5. Press the key ↲, until

At this point, the upper row of the display indicates the operating con‐

ð

[CONFIG]

[OFST]

is shown in the lower row

[MODE/EXIT button]

dition of the offset function.

6. If the function is switched off, then switch it

7. Select the desired offset value with ▼ or ▲

Press the key ↲, to accept the value.

ð

42

until the arrow

[ON]

, by pressing ▼ or ▲ .

A0532

Commissioning

The difference between the value measured by the DULCO® turb
C NTU-value and the value measured by the reference device is
the offset value.

For example, if the DULCO® turb C measures a value of 0.016
NTU for the process water, and the reference device measures a
value of 0.012 NTU for the sample, then entering an offset value of

-0.04 will cause the DULCO® turb C to display the value 0.012
NTU

8. At this point, the offset configuration is completed. At this stage, the device
remains in configuration mode

[MODE/EXIT button]

in order to return to

[CONFIG]

. Press the key

[AUTO]

6.4.5 Extended settings

Extended settings

Fig. 14: Extended settings

43

A0533

Commissioning

Function Options Info

[ON]

[OFF]

(On)

(Off)

Select the function
"Extended settings" in
order to access configu‐

Extended settings

ration for the following
options:

n Speed of response
n Screen resolution
n LCD illumination

n Units
n Ultrasonic cleaning
n RS-485 parameters
n Alarm drying agent

brightness

Response time

Fig. 15: Response time

44

Function Options Info

Commissioning

Reaction time
(RESP)

1 ... 100 %

Factory setting: 10
%

Select a reaction time for the dis‐
played and output NTU values.

Select the highest reaction time (i.e.
the highest number) in order to avoid
anomalies caused by air or other influ‐
ences.

Select the lowest reaction time (i.e.
the lowest number) if rapid changes
are to be expected, which are to be
monitored.

The displayed number is a relative
reaction time. The approximate reac‐
tion time (in seconds) can be calcu‐
lated by the displayed number multi‐
plied by 5.

45

A0534

Commissioning

Screen resolution

Fig. 16: Screen resolution

Function Options Info

Screen resolution (RES) 1 ... 0.001

Factory setting: 0,01

For displayed values
under 10 NTU the
DULCO® turb C is able
to display a value with
up to four digits after the
decimal point

46

LCD illumination brightness

A0535

Fig. 17: LCD illumination brightness

Commissioning

Function Options Info

LCD illumination bright‐
ness (BRT)

1 ... 10

Factory setting: 8

Adjust the backlighting
for the LCD display as
required

47

A0536

Commissioning

Units

Fig. 18: Units

Function Options Info

Units (UNIT)

n NTU
n FNU

Select a unit for dis‐
playing the turbidity
measurement:

Factory setting: NTU

NTU

[Nephelometric Turbidity
Units]

or

FNU

[Formazin Nephelo‐
metric Units]

48

A0537

Commissioning

Ultrasonic cleaning (models TUC 3 and TUC 4)

Error message in the event of incorrect cuvette

Only active if a corresponding cuvette with ultrasound transducer is used. If
you use a cuvette without an ultrasound transducer, then an error message
will be shown on the LCD display.

Fig. 19: Ultrasonic cleaning

Function Options Info

Ultrasonic cleaning
(CLN)

[ON]

(On)

[OFF]

(Off)

Factory setting:

[ON]

If the ultrasonic cleaning function is working normally

Switching the ultrasonic
cleaning function on and
off

„AUTO“

matic measuring mode (AUTO)

flashes in auto‐

49

A0538

Commissioning

RS-485 parameters

Fig. 20: RS-485 parameters

Function Options Info

Bits (BITS) 7

8

Factory setting: 8

Parity (PRTY) nOnE

ODD

The required number of
data bits for the commu‐
nications software
deployed

The parity bit required
for the communications
software.

E

Factory setting: nOnE

Stop 1

2

The stop bit required for
the communications
software.

Factory setting: 1

50

Drying agent alarm

A0539

Fig. 21: Drying agent alarm

Commissioning

Function Options Info

Drying agent alarm
(DESC)

[ON]

(On)

[OFF]

(Off)

Factory setting:

[OFF]

In order to activate one or both alarms, then you must configure

Ä Chapter 6.4.3 „Configure alarm “ on page 38

.

In order to indicate an error via the 4-20 mA signal,
must be selected in alarm current, see

“ on page 38

.

Ä Chapter 6.4.3 „Configure alarm

Select

[ON,]

in order to
trigger an alarm when
the drying agent is satu‐
rated

„ERROR“

, see

„ERROR ALARM (ERLV)“

Configuration of 4 mA output

Allow a constant output of 4 mA and will allow you to calibrate or adjust the 4
mA signal.

51

A0607

Commissioning

Fig. 22: Configuration of 4 mA output

Function Options Info

Configuration of 4 mA
output

- 40 ... + 40 Configure the mA value
in order to adapt to the
superordinated control
system (e.g. SPC or
SCADA)

One count number cor‐
responds to 0.01 mA

Configuration of 20 mA output

Allow a constant output of 20 mA and will allow you to calibrate or adjust the 20
mA signal.

52

A0608

Fig. 23: Configuration of 20 mA output

Function Options Info

Commissioning

Configuration of 20 mA

- 1000 ... + 1000 Configure the mA value

output

Save configuration settings

If you have set the extended settings
(EXTD) to
the

[↲]

„OFF“

then you can use

-button to save the settings and

return to the permanent display in

„AUTO“

mode, see figure Fig. 6

in order to adapt to the
superordinated control
system (e.g. SPC or
SCADA)

One count number cor‐
responds to 0.01 mA

53

Commissioning

If you have set the extended settings

„ON“

(EXTD) to

[↲]

-button after the final menu in the

then you can use the

extended settings to save your set‐
tings and return to the permanent dis‐
play in

„AUTO“

mode, see figure
Fig. 6. All changes previously under‐
taken in the configuration menu can
be stored in this manner.

You can access the configuration
menu at any time in order to reset or
modify some or all of the parameters.
You can exit the configuration menu
at any time by pressing the

[MODE/EXIT button]

. In doing so,
any changes to the parameters that
you have modified will be stored.

Flow controller

The flow controller (part number

1037880) limits high-pressure sys‐
tems to a flow of less than 1 l/min.

54

7 Operation

Operation

7.1 Calibrate sensor

The sensor was tested and cali‐
brated before leaving the factory.
For this reason, you can use the
sensor right away. Under normal
conditions, it is recommended to
carry out calibration at least once
every three months.

The alarm relay switches over to
alarm state if the sensor is in
[CAL] or [CONFIG] mode. If no
entry is made in [CAL] mode
within a period of 15 minutes, the
sensor automatically toggles back
over to [AUTO] mode.

7.1.1 Standard solutions for cali‐
bration

If you operate the sensor across
its entire measurement range
from 0.02 NTU to 1000 NTU, then
you must perform calibration with
all three standard solutions (0.02
NTU, 10.0 NTU and 1000 NTU). If
the sensor is only operated in
measurement ranges under 10
NTU, then you may perform a
simplified calibration with standard
solutions 0.02 NTU and 10.0
NTU.

55

Operation

CAUTION!

Use of diluted formazine

Possible consequences: Inaccu‐
rate calibration. Malfunctions in
dependent processes.

Diluted formazine is instable.
Ensure that freshly prepared for‐
mazine solution is used when per‐
forming calibration.

If possible, use a standard solu‐
tion from Prominent for calibra‐
tion. These standard solutions are
more stable than formazine and
have a minimum shelf-life of 12
months. In doing so, observe the
use-by-date on the standard solu‐
tion packaging.

Indexing the standard solution with
your cuvette

CAUTION!

Malfunction of the control circuit

Possible consequence: Poor end­product quality

Ensure that your controller or
other measuring equipment is
configured so that the indexing
process does not lead to uninten‐
tional control functions in the
measurement and control system.
The controller connected to the
sensor may not process the sig‐
nals and use them for control pur‐
poses during indexing of the sig‐
nals.

Calibration set order number:
1037699

56

NOTICE!

Screen resolution

We recommend indexing the
DULCO® turb C in the "Commis‐
sioning / Display resolution"
menu, so that the following resolu‐
tion is achieved

1000 NTU: No digits after the

–

decimal point on the display

– 10 NTU: Two digits after the

decimal point on the display

– 0.02 NTU: Four digits after the

decimal point on the display

Operation

Handling the standard solu‐
tion
The standard solution 1000 NTU

must be lightly shaken before use
for calibration.

Standard solution 10 NTU must
be transferred to the cuvette from
the supply bottle before it is used
for the first time. The filling for the
10 NTU cuvette is then usable for
3 months.

Do not use the standard solution
once the use-by-date has expired.

Purpose of indexing

The standard solution cuvettes
have minimal manufacturing toler‐
ances. This results from the man‐
ufacturing process and is unavoid‐
able.

In order to minimise the effects of
these manufacturing tolerances
on the calibration process, you
must index and mark the position
on the cuvette with the lowest tur‐
bidity value (lowest NTU value).

You can mark the index points
with the help of the marking rings
supplied. These marking rings are
included with the calibration set
packaging. The marking ring must
first be placed around the plastic
cover of the respective cuvette.

57

Operation

Prerequisites: The sensor is opera‐
tional and is switched to

[AUTO]

mode.

1. Open the flow unit by screwing
it clockwise and remove the in­line flow fitting from the cuvette.

2. Place the

[1000 NTU]

calibra‐
tion cuvette in the DULCO® turb
C

3. Rotate the

[1000 NTU]

calibra‐
tion cuvette one full turn in 20°
steps. On each step, wait until
the displayed measured value
has stabilised.

Mark the point on the cuv‐

ð

ette with the lowest NTU
value with the help of the
marking ring supplied, so
that the marker points
towards yourself.

4. Remove the

[1000 NTU]

calibra‐

tion cuvette and place the

[10 NTU]

calibration cuvette in

the DULCO® turb C

6. Remove the

[10 NTU]

calibra‐

tion cuvette and place the

[0.02 NTU]

calibration cuvette in

the DULCO® turb C

7. Rotate the

[0.02 NTU]

calibra‐
tion cuvette one full turn in 20°
steps. On each step, wait until
the displayed measured value
has stabilised.

Mark the point on the cuv‐

ð

ette with the lowest NTU
value with the help of the
marking ring supplied, so
that the marker points
towards yourself.

8. Place the cuvette sample with
the cuvette into the DULCO

®

turb C

9. Close the in-line flow fitting by
screwing it in an anticlockwise
direction.

ð

The DULCO® turb C is in

[AUTO]

mode.

5. Rotate the

[10 NTU]

cuvette one full turn in 20°
steps. On each step, wait until
the displayed measured value
has stabilised.

Mark the point on the cuv‐

ð

ette with the lowest NTU
value with the help of the
marking ring supplied, so
that the marker points
towards yourself.

58

calibration

For subsequent calibra‐
tion, place the calibra‐
tion cuvette into the
DULCO® turb C so that
the marking ring marker
points towards yourself.

Operation

7.1.2 Perform calibration

CAUTION!

Malfunction of the control circuit

Possible consequence: Poor end-product quality

Ensure that your controller or other measuring equipment is configured so
that the calibration process does not lead to unintentional control functions
in the measurement and control system. The controller connected to the
sensor may not process the signals and use them for control purposes
during calibration of the signals.

NOTICE!

Fan standstill

The sensor fan is switched off during the calibration process, in order to
extend the service life of the drying agent.

The fan is switched on:

during the calibration countdown

–
– after returning to

[AUTO]

mode.

– After 5 minutes without input from the operator

– Whichever occurs first.

Keep the measurement chamber covered if no cuvette is inserted and only
place a cuvette into the measurement chamber if it is completely dry, in
order to avoid premature saturation of the drying agent.

59

Operation

NOTICE!

Cleaning the cuvette

Possibility measurement value distortion

Before inserting the respective cuvette, it must be thoroughly cleaned with
the cleaning cloth provided with the calibration set. Even minimal traces of
foreign bodies on the surface of the cuvette can cause the measured result
to be falsified.

Prerequisites: The sensor is operational and is switched to

[AUTO]

mode.

Fig. 24: Display [Calibration 1000 NTU]

1. Use the

ð

[MODE/EXIT button]

key to select

[CAL]

mode.

The LCD display (see Fig. 24) shows an arrow next to

[CAL]

. The
lower display value (1000) is the selected calibration point. The upper
displayed value is the currently measured NTU value.

2. Open the flow unit by screwing it in a clockwise direction and remove the
cuvette sample together with the cuvette.

60

A0523

Operation

3.

Place the

[1000 NTU]

calibration cuvette in the DULCO® turb C so that the

marking ring marker points towards yourself, see

Ä „Indexing the standard solution with your cuvette“ on page 56

4. Slowly rotate the calibration cuvette 20° from the centre point to the left
and then 20° from the centre point to the right

Leave the calibration cuvette in the position with the lowest measured

ð

value.

Fig. 25: Display [Start calibration ]

5. Press the ↲-key in order to start calibration to

ð

A 30 second countdown begins, after which the DULCO® turb C is
calibrated to

[1000 NTU]

.

[1000 NTU]

61

A0525

Operation

Fig. 26: Display [Calibration 10 NTU]

6. Remove the

7.

Place the

[1000 NTU]

[10 NTU]

Calibration cuvette

calibration cuvette in the DULCO® turb C so that the

marking ring marker points towards yourself, see

Ä „Indexing the standard solution with your cuvette“ on page 56

8. Slowly rotate the calibration cuvette 20° from the centre point to the left
and then 20° from the centre point to the right

Leave the calibration cuvette in the position with the lowest measured

ð

value.

62

A0524

Fig. 27: Display [Start calibration ]

A0526

Operation

9. Press the ↲-key in order to start calibration to

ð

A 60 second countdown begins, after which the DULCO® turb C is
calibrated to

[10 NTU]

.

Fig. 28: Display [Calibration 0.02 NTU]

10. Remove the

[10 NTU]

Calibration cuvette

[10 NTU]

63

A0527

Operation

11.

Place the

[0.02 NTU]

calibration cuvette in the DULCO® turb C so that the

marking ring marker points towards yourself, see

Ä „Indexing the standard solution with your cuvette“ on page 56

12. Slowly rotate the calibration cuvette 20° from the centre point to the left
and then 20 ° from the centre point to the right

Leave the calibration cuvette in the position with the lowest measured

ð

value.

Fig. 29: Display [Start calibration ]

13. Press the ↲-key in order to start calibration to

[0.02 NTU]

ð

A 30 second countdown begins, after which the DULCO® turb C is
calibrated to

14.

Remove the

15.

Place the cuvette sample with the cuvette into the

[0.02 NTU]

[0.02 NTU]

.

calibration cuvette from the DULCO® turb C

DULCO® turb C.

16. Close the in-line flow fitting by screwing it in an anticlockwise direction

ð

The DULCO®

turb C is now calibrated and is returned to

[AUTO]

mode.

64

Incorrect calibration

A0528

Fig. 30: Display [Incorrect calibration]

If the

[Err CAL]

message is shown, then the DULCO® turb C internal diagnostics

system has determined that an error has occurred during calibration.

Operation

Press the

[MODE/EXIT button]

in order to repeat the calibration process.

Restoring the factory calibration settings

1. In order to restore the factory calibration, press and hold the ▲-key

2. Now press the ↲-key and release it again

3. Now release the ▲-key.

The sensor will now work with the factory calibration values.

ð

65

Maintenance, troubleshooting and repair

8 Maintenance, troubleshooting and repair

8.1 Information about fault main‐

tenance

The sensor continuously carries out
self-diagnostic checks. Any errors are
displayed in the bottom row of the dis‐
play.

The sensor has a three-stage fault
detection system:

n Warning

A warning is merely a mes‐

–

sage on the display which
serves to indicate a pending
problem. No alarms are
issued. For example, if the
drying agent alarm is deacti‐
vated and the drying agent is
saturated, the LCD display
shows the following warning:

[DESC]

n Fault

– An error indicates a malfunc‐

tion or problem which can
generally be rectified by the
operator. This includes, for
example, a lamp failure

[LAMP]
[CAL]

or incorrect calibration

. If an error occurs, the

sensor continues to indicate

values, however, the accuracy
of these measured values is
uncertain, meaning that you
cannot rely on the values
given.

n Malfunction

A malfunction is a system

–

error. This problem cannot be
rectified by the operator. The
sensor must be sent back to
the factory for repair. These
faults relate to malfunctions in
the

[CPU], [A/D], [EEPROM]

or other units, which are inte‐
grated into the sensor. In the
case of malfunction, the
device will no longer work cor‐
rectly and the message
will be shown on the LCD dis‐
play. Both alarm relays are
activated and the current
output is set to 2 mA.

[FAIL]

66

8.1.1 System error messages

Maintenance, troubleshooting and repair

Fault mes‐

Possible cause Measure

sage

[MA]

[DESC]

4 ... 20 mA circuit open Check cabling

Drying agent saturated Exchange drying agent. Refer

to

Ä Chapter 6.1 „Load drying

agent“ on page 30

[LAMP]

Lamp failure Exchange lamp. Contact cus‐

tomer service

[FLOW]

[CLN]

Flow interrupted Establish flow

Cuvette ultrasound trans‐
ducer has no contact

Rotate the cuvette slightly in
order to improve contact.
Exchange the cuvette if the
problem persists.

Cuvette removed Insert cuvette

[FAIL]

Fatal system errors Contact customer service

8.1.2 Faults in the process

Fault Possible cause Process error

Displayed
values higher

Air bubbles in the
sample water

than expected

Condensate or cuvette
not airtight

Cuvette soiled Clean cuvette

Ensure that the outlet bleed valve is
open and not blocked

Create backpressure

Install air bubble trap, accessories,
order number 1037790

Check cuvette for condensate or
leaks

67

Maintenance, troubleshooting and repair

Fault Possible cause Process error

Displayed
values incor‐
rect

Displayed
values lower
than expected

Upper row of
display
flashes

Sensor not correctly
calibrated

Air bubbles in the
sample water

Particles of dirt in the
cuvette

Sensor not correctly
calibrated

Sample has exceeded
the permissible meas‐
urement range

Calibrate sensor, see

Ä Chapter

7.1.2 „Perform calibra‐
tion“ on page 59

Ensure that the outlet bleed valve is
open and not blocked

Create backpressure

Install air bubble trap, accessories,
order number 1037790

Clean the cuvette of any particles of
dirt.

Calibrate sensor, see

Ä Chapter

7.1.2 „Perform calibra‐
tion“ on page 59

Check sample. Turbidity of the
sample may be too high in order to
be read by the sensor

68

Spare parts and accessories

9 Spare parts and accessories

Spare parts

Spare part Part number

Drying agent 1037701

Cuvette TUC1 / TUC2 1037877

Cuvette TUC3 / TUC4 1037878

Infrared lamp TUC1 / TUC3 1037702

White light lamp TUC2 / TUC4 1037703

Hose kit 1037879

Pressure regulating valve 1037885

Accessories

Accessories Part number

Calibration set 1037699

Flow controller 1037880

Air bubble trap 1037700

69

Standards complied with

10 Standards complied with

EN 60529 Specification for degrees of
protection provided by enclosures (IP­Code)

EN 60746-1 Expression of perform‐
ance of electrochemical analyzers ­Part 1: General

EN 61000 Electromagnetic compati‐
bility (EMC)

EN 61010 Safety requirements for
electrical equipment for measure‐
ment, control and laboratory use ­Part 1: General requirements

EN 61326 Electrical equipment for
measuring, control and laboratory use

- EMC requirements (for class A and

B devices)

70

11 Disposal of used parts

n Users' qualification: instructed

persons, see

„Users' qualifications“ on page 8

NOTICE!

Regulations governing disposal of
used parts

– Note the current national reg‐

ulations and legal standards
which apply in your country

ProMinent Dosiertechnik GmbH, Hei‐
delberg will take back decontami‐
nated used devices providing that
they are covered by adequate
postage.

Ä Chapter 1.2

Disposal of used parts

71

Declaration of Conformity

12 Declaration of Conformity

Fig. 31: Declaration of Conformity

72

13 Index

Index

A

Accessibility................................... 17

Accessories................................... 69

Alarm delay period........................ 39

Alarm ERROR............................... 39

Alarm function............................... 38

Alarm HI........................................ 39

Alarm limit value............................ 39

Alarm LO....................................... 39

Alarm menu................................... 40

Ambient temperature..................... 17

C

Calibration erroneous.................... 65

D

Data................................................. 6

Delay period alarm........................ 39

F

Flow............................................... 21

FNU............................................... 30

Functions......................................... 6

G

General non-discriminatory

approach......................................... 3

I

Incorrect calibration....................... 65

L

Limit value alarm........................... 39

Liquid temperature........................ 21

M

Menu Alarm................................... 40

Mounting position.......................... 17

N

non-discriminatory approach........... 3

NTU............................................... 30

O

Operating position......................... 17

P

Pressure........................................ 21

Protection class IP 66 ...................

25

R

Radiant exposure.......................... 17

Reading position............................ 17

Recycling................................. 16, 17

S

Safety information........................... 6

Spare parts.................................... 69

Strain relief.................................... 24

T

Turbidity threshold......................... 39

U

Unit NTU ....................................... 30

Users' qualifications......................... 8

73