Hach-Lange RTC113 User Manual

DOC023.52.90386

RTC113 ST-Module

Real Time Controller – Sludge Thickening-Module

User manual

12/2012, Edition 2A

© HACH-LANGE GmbH, 2012. All rights reserved. Printed in Germany.

Table of contents

Section1 Technical data .......................................................................................................................... 7

Section2 General information .................................................................................................................. 9

2.1 Safety information............................................................................................................................... 9

2.1.1 Hazard notices in this manual.................................................................................................... 9

2.1.2 Warning labels ...........................................................................................................................9

2.2 Areas of application .......................................................................................................................... 10

2.3 Scope of delivery .............................................................................................................................. 10

2.4 Instrument overview.......................................................................................................................... 11

2.5 Theory of operation...........................................................................................................................13

2.5.1 Theory of operation of the RTC Module................................................................................... 13

2.5.2 Input signals............................................................................................................................. 13

2.5.3 Parameters for configuration.................................................................................................... 13

2.5.4 Operating modes ..................................................................................................................... 14

Section3 Installation...............................................................................................................................17

3.1 Installation of the RTC Module ......................................................................................................... 17

3.1.1 Supply voltage of the RTC Module ..........................................................................................17

3.2 Connection of process measurement instruments for the TSS concentration of solids ................... 17

3.2.1 Power supply of the sc sensors and the sc1000 controller...................................................... 17

3.3 sc1000 controller connection............................................................................................................ 17

3.4 Connection to the automation unit on the plant side.........................................................................18

Section4 Parameterization and operation ............................................................................................. 21

4.1 Operating the sc controller................................................................................................................21

4.2 sc1000 setup ....................................................................................................................................21

4.3 Menu structure.................................................................................................................................. 21

4.3.1 DIAGNOSIS............................................................................................................................. 21

4.4 Configuration of RTC113 ST-Module parameters on the sc1000 controller..................................... 21

4.4.1 RTC113 ST-Module open and closed-loop controller.............................................................. 21

4.5 Select sensors .................................................................................................................................. 26

4.6 PRESELECT PROG......................................................................................................................... 28

4.6.1 POLYMER DOSING CONTROL.............................................................................................. 28

4.6.2 FEED FLOW CONTROL .........................................................................................................28

4.6.3 CLOSED LOOP EFFLUENT CONTROL................................................................................. 28

3

Table of contents

4.7 CONTROL PARAMETER .................................................................................................................28

4.7.1 FACTOR POLYMER DOSING.................................................................................................28

4.7.2 POLYMER CONCENTRATION ...............................................................................................28

4.7.3 MANUAL POLYMER DOSING.................................................................................................29

4.7.4 MANUAL FEED FLOW ............................................................................................................29

4.7.5 MAX DECREASE CLOSED L ..................................................................................................29

4.7.6 MAX INCREASE CLOSED L ...................................................................................................29

4.7.7 SET-POINT TSS ......................................................................................................................29

4.7.8 P GAIN TSS .............................................................................................................................29

4.7.9 INTEGRAL TIME TSS..............................................................................................................29

4.7.10 DERIVATIVE TIME TSS ........................................................................................................30

4.8 INPUT/OUTPUT LIMITS ...................................................................................................................30

4.8.1 FEED FLOW LOW ...................................................................................................................30

4.8.2 FEED FLOW HIGH ..................................................................................................................30

4.8.3 FEED FLOW SMOOTHING .....................................................................................................30

4.8.4 LIMIT TSS IN LOW ..................................................................................................................30

4.8.5 LIMIT MAX TSS IN HIGH.........................................................................................................30

4.8.6 TSS IN SMOOTHING...............................................................................................................30

4.8.7 LIMIT TSS OUT LOW ..............................................................................................................31

4.8.8 LIMIT TSS OUT HIGH..............................................................................................................31

4.8.9 TSS OUT SMOOTHING...........................................................................................................31

4.8.10 POLYMER DOSING MINIMUM .............................................................................................31

4.8.11 POLYMER DOSING MAXIMUM ............................................................................................31

4.9 INPUTS .............................................................................................................................................31

4.9.1 MIN FEED FLOW.....................................................................................................................31

4.9.2 MAX FEED FLOW....................................................................................................................31

4.9.3 0/4...20 mA...............................................................................................................................31

4.9.4 MIN POLYMER FLOW.............................................................................................................32

4.9.5 MAX POLYMER FLOW............................................................................................................32

4.9.6 0/4...20 mA...............................................................................................................................32

4.10 OUTPUTS .......................................................................................................................................32

4.10.1 MIN FEED FLOW...................................................................................................................32

4.10.2 MAX FEED FLOW..................................................................................................................32

4.10.3 0/4...20 mA.............................................................................................................................32

4.10.4 MIN POLYMER FLOW.........................................

4.10.5 MAX POLYMER FLOW..........................................................................................................32

4.10.6 0/4...20 mA.............................................................................................................................32

4.10.7 CONTROL CYCLE.................................................................................................................32

4.10.8 MIN RUNTIME .......................................................................................................................33

4.11 Displayed measurement values and variables................................................................................33

..................................................................32

Section5 Maintenance............................................................................................................................35

5.1 Maintenance schedule ......................................................................................................................35

4

Table of contents

Section6 Troubleshooting...................................................................................................................... 37

6.1 Error messages ................................................................................................................................ 37

6.2 Warnings........................................................................................................................................... 37

6.3 Wear parts ........................................................................................................................................ 37

Section7 Replacement parts and accessories ...................................................................................... 39

7.1 Replacement parts............................................................................................................................39

Section8 Contact information ................................................................................................................ 41

Section9 Warranty and liability .............................................................................................................. 43

AppendixA Modbus address setting ...................................................................................................... 45

AppendixB Configuration of the network modules................................................................................. 47

B.1 RTC113 ST-Module Profibus/Modbus telegram ............................................................................. 47

Index....................................................................................................................................................... 49

5

Table of contents

6

Section1 Technical data

These are subject to change without notice.

Embedded PC (compact industrial PC)

Processor

Flash memory 2 GB compact flash card

Internal working memory 256 MB DDR-RAM (not expandable)

Interfaces 1× RJ 45 (Ethernet), 10/100 Mbit/s

Diagnostic LED

Expansion slot 1× CompactFlash type II slot with ejector mechanism

Clock

Operating system Microsoft Windows

Control software TwinCAT PLC Runtime or TwinCAT NC PTP Runtime

System bus 16 bit ISA (PC/104 standard)

Power supply Via system bus (through power supply module CX1100-0002)

Max. power loss 6 W (including the system interfaces CX1010-N0xx)

Analog inputs 0/4 to 20 mA for input of the feed flow rate and the polymer flow rate

Number of inputs

Internal resistance 80 ohm + diode voltage 0.7 V

Pentium®1, MMX compatible, 500 MHz clock rate

1× power, 1× LAN speed, 1× LAN activity, TC status,
1× flash access

Internal, battery-buffered clock for time and date (battery can be
replaced)

®2

CE or Microsoft Windows Embedded Standard

One-channel: 2 (KL3011)
Two-channel: 4 (KL3011)

Signal current 0/4 to 20 mA

Common mode voltage (UCM) 35 V max.

Measurement error (for entire measurement
range)

Voltage surge resistance 35 V DC

Electrical isolation 500 V

Digital inputs Enabling of the open-loop control (thickened sludge pump on/off)

Number of inputs 2 (KL1002)

Nominal voltage 24 V DC (-15 % / +20 %)

Signal voltage "0" –3 to +5 V

Signal voltage "1" 15 to 30 V

Input filter 30 ms

Input current 5mA (typ.)

Electrical isolation 500 V

< ± 0.3 % (from end value of measurement range)

(K-bus/signal voltage)

eff

(K-bus/field voltage)

eff

7

Technical data

Analog outputs Output of the polymer dosing, output of the feed flow rate

Number of outputs

Supply voltage

Signal current 0/4 to 20 mA

Working resistance <500 ohm

Measurement error

Resolution 12 bit

Conversion time Approximately 1.5 ms

One-channel: 2 (KL4012)
Two-channel: 4 (KL4012)

24 V DC via the power contacts
(Alternatively, 15 V DC with bus termination KL9515)

± 0.5 LSB linearity error
± 0.5 LSB offset error
± 0.1 % (relative to the measuring range end value)

Electrical isolation 500 V

(K-bus/field voltage)

eff

Digital outputs Control of polymer pump: feed flow rate and fault messages

Number of outputs

One-channel: 4 (KL2134)
Two-channel: 8 (KL2408)

Nominal load voltage 24 V DC (–15 % / +20 %)

Load type ohmic, inductive lamp load

Max. output current 0.5 A (short-circuit proof) per channel

Reverse polarity protection Yes

Electrical isolation 500 V

(K-bus/field voltage)

eff

Equipment properties

Dimensions (W x× H x× D)

One-channel: 191 × 120 × 96 mm (7.52 × 4.72 × 3.78 in)
Two-channel: 227 × 120 × 96 mm (8.94 × 4.72 × 3.78 in)

Mass Approximately 0.9 kg (approximately 1.98 lb)

Environmental conditions

Working temperature 0 to 50 °C (32 to 122 °F)

Storage temperature –25 to +85 °C (–13 to 185 °F)

Relative humidity 95 %, non-condensing

Miscellaneous

Pollution Degree
Protection Class
Installation Category
Maximum Altitude

2
1
II
2000 m (6.562 ft.)

Protection class IP20

Installation DIN rail EN 50022 35 × 15.0

1

Pentium is a registered trademark of the Intel Corporation.

2

Microsoft Windows is a brand name for operating systems of the Microsoft Corporation.

8

Section2 General information

2.1 Safety information

Please read the entire manual carefully before unpacking, assembling or operating the
instrument. Pay attention to all hazard and warning notices. Failure to do so could result in
serious injury to the operator or damage to the instrument.

To prevent damage to or impairment of the device's protection equipment, the device may
only be used or installed as described in this manual.

2.1.1 Hazard notices in this manual

Indicates a potentially or imminently hazardous situation that, if not avoided, can result in death or
serious injury.

Indicates a potentially or imminently dangerous situation that, if it is not avoided, can lead to
death or to serious injuries.

Indicates a possible dangerous situation that can have minor or moderate injuries as the result.

DANGER

WARNING

CAUTION

Indicates a situation that, if it is not avoided, can lead to damage to the device. Information that
requires special emphasis.

Note: Information that supplements points in the main text.

2.1.2 Warning labels

Observe all labels and tags attached to the instrument. Failure to do so may result in
personal injury or damage to the instrument.

This symbol may be attached to the device and refers to operation and/or safety notes in the user manual.

This symbol may be found on an enclosure or barrier within the product and indicates a risk of electric shock
and/or death by electrocution.

Electrical equipment marked with this symbol may no longer be disposed of in unsorted domestic or industrial
waste in Europe after August 12, 2005. In conformity with the provisions in force (EU Directive 2002/96/EC),
consumers in the EU must return old electrical devices to the manufacturer for disposal from this date, at no
charge to the consumer.

Note: You obtain instructions on the correct disposal of all (marked and not marked) electrical products that
were supplied or manufactured by Hach-Lange at your relevant Hach-Lange sales office.

NOTICE

9

General information

2.2 Areas of application

The RTC113 ST-Module (Real Time Controller, Sludge Thickening-Module) is an open
and closed-loop control unit for universal applications. It can be used by mechanical
sludge thickening devices, for example belt thickeners or drum thickeners in wastewater
treatment plants.

The RTC113 ST-Module

• Optimizes polymer consumption and

• Uniformly manages the concentration of solids in the thick sludge

1-channel Open/closed-loop controller for one thickener
2-channel Open/closed-loop controller for two thickeners

The use of an RTC Module does not release the operator from the duty of care to the system. No
guarantees as to the functionality or operational safety of the system.

In particular, the operator must make sure that instruments connected to the RTC
open/closed-loop controller are always fully functional.

To make sure these instruments supply correct, reliable measurement values, regular
maintenance work (for example, cleaning of the sensor and laboratory comparative
measurements) is essential! (Refer to the user manual for the relevant instrument.)

Table1 Versions of the RTC113 ST-Module

NOTICE

2.3 Scope of delivery

The combination of pre-assembled components supplied by the manufacturer does not represent
a standalone functional unit. In accordance with EU guidelines, this combination of
pre-assembled components is not supplied with a CE mark, and there is no EU declaration of
conformity for the combination.

However, the conformity of the combination of components with the guidelines can be proved
through technical measurements.

Each RTC Module is supplied with:

• SUB-D connector (9 pin)

• user manual

• ferrite core
Check that the order is complete. All listed components must be present. If anything is

missing or damaged, contact the manufacturer or distributor immediately.

NOTICE

10

2.4 Instrument overview

Figure1 Base module RTC 24 V version .

General information

1 PE (protective earth) 5 sc 1000 connection: RS485 (CX1010-N031)
2 24 V 6 Battery compartment
3 0 V 7 CPU base module, consisting of Ethernet port with

battery compartment (CX1010-N000), CPU module with
CF card (CX1010-0021) and passive aeration element.

4 Automatic circuit breaker (ON/OFF switch for item 7 and

8 without fuse function).

Note: All components are pre-wired.

8 Power supply module, consisting of bus coupler

(CX1 100-0002) and terminal module 24V.

11

General information

Abbildung 2 Base module RTC 100-240 V version

1 L(+) 7 Automatic circuit breaker (ON/OFF switch for item 10

and 11 without fuse function).

2 N(–) 8 sc 1000 connection: RS485 (CX1010-N041)
3 Input AC 100–240 V / Input DC 95 V–250 V 9 Battery compartment
4 PE (protective earth) 10 CPU base module, consisting of Ethernet port with

battery compartment (CX1010-N000), CPU module with
CF card (CX1010-0021) and passive aeration element.

5 24 V transformer (Specification section 3.1.1, page 17) 11 Power supply module, consisting of bus coupler
6 Output DC 24 V, 0,75 A

(CX1100-0002) and terminal module 24V.

Note: All components are pre-wired.

12

Figure3 Design of the analog and digital input and output modules

2

1

General information

1 Input- or Output- Module or Bus Termination Module

analog or digital

Note: The number of LEDs indicates the number of channels.

2.5 Theory of operation

2.5.1 Theory of operation of the RTC Module

The RTC113 RTC Module outputs analog (0/4–20 mA) and digital (0/24 V) signals for the
polymer dosing rate or the feed flow rate of mechanical sludge thickening devices. Digital
fieldbus signals from sc1000 communication cards can also be used.

2.5.2 Input signals

The most important input signals are:

• Sludge influent TSS concentration (concentration of solids)

• Feed flow rate of the machine-controlled sludge thickening

2.5.3 Parameters for configuration

• Thickened sludge TSS concentration (optional)

• Status of the thickened sludge pump (on/off)

The most important parameters for configuration are:

2 LED area with installed LEDs or free LED installation

spaces

• The required specific polymer dosing [g polymer/kg TSS]

• The target TSS concentration in thickened sludge

Note: In a closed-loop circuit, TSS measurement is required in thickened sludge.

13

General information

2.5.4 Operating modes

The RTC113 ST-Module can be operated as a combined open-loop and closed-loop
controller. Several variants can be configured.

1. Configuration of a specified polymer rate [L/h] with a specified feed flow rate [m

2. Configuration of a specified specific polymer dosing rate [g polymer/kg TSS]. One of
the following settings is adjusted:

a. The polymer flow rate according to the TSS concentration and the feed flow rate

• Based on the actual feed flow rate [L/h] and TSS concentration [g/L] in the feed

Or:
b. The feed flow rate according to the specified polymer dosing rate and the

3

/h].

(Figure4).

flow, the polymer dosing rate [L/h] is calculated for the required specific dosing
rate.

measured TSS concentration of the influent (Figure5).

• Based on the measurement value of the TSS concentration from the influent [g/L]

and the configurable specified polymer dosing rate [L/h], the feed flow rate [m
is calculated such that it corresponds to the pre-defined specific polymer dosing
rate [g/kg].

3. Both variants 2a and 2b can be combined with the closed-loop controller described
below:

a. Closed-loop control of the TSS concentration in the thickened sludge

• The specific polymer dosing rate is adjusted according to the difference between

the target and actual TSS concentration in the outlet.

3

/h]

14

Figure4 Adjustment of the polymer dosing rate to the feed flow rate

General information

1 Static thickener 8 Pump for open-loop control of the polymer dosing rate
2 Measurement of the feed flow rate 9 Pump for the feed flow rate
3 Open-loop control of the polymer dosing rate (feed flow

rate measurement value)
4 TSS measurement from the influent 11 TSS measurement in the thickened sludge outlet
5 Open-loop control of the polymer dosing rate (influent

TSS concentration measurement value)
6 RTC113 ST-Module 13 Thickened sludge pump
7 Polymer supply 14 Digester

10 Mechanical sludge thickener

12 Closed-loop control of the polymer dosing rate

15

General information

Figure5 Adjustment of the feed flow rate to the specified polymer dosing rate

1 Static thickener 8 Pump for polymer dosing: constant here
2 Influent 9 Mechanical sludge thickener
3 TSS measurement from the influent 10 TSS measurement in the thickened sludge outlet
4 Open-loop control for the feed flow rate 11 Closed-loop control for the feed flow rate
5 RTC113 ST-Module 12 Thickened sludge pump
6 Pump for open-loop control of the feed flow rate 13 Digester
7 Polymer supply

16

Section3 Installation

Only qualified experts may perform the tasks described in this section of the manual, while
adhering to all locally valid safety regulations.

Always lay cables and hoses so that they are straight and do not pose a tripping hazard.

Before the power supply is switched on, refer to the instructions in the relevant manuals.

3.1 Installation of the RTC Module

Only install the RTC Module on a DIN rail. The module must be attached horizontally, with
at least 30 mm (1.2 in.) space at the top and bottom to make sure that the passive
aeration element can function correctly.

When used indoors, the RTC Module must be installed in a control cabinet. When used
outdoors, the RTC Module requires a suitable enclosure that follows the technical
specifications.

DANGER

CAUTION

CAUTION

The RTC Module is only operated via the sc1000 controller (see the user manual for the
sc1000 controller).

Note: The software version of the sc1000 controller must be V3.14 or above.

3.1.1 Supply voltage of the RTC Module

Table2 Supply voltage of the RTC Module

Voltage 24 V DC (–15 % / +20 %), max. 25 W
Recommended fuse C2
With 110–230 V option 110–230 VAC, 50-60 Hz, approximately 25 VA

Note: An external deactivation switch is recommended for all installations.

3.2 Connection of process measurement instruments for the TSS concentration
of solids

The measurement signals of the sc sensors for the measurement of the concentration of
solids (e. g. SOLITAX sc) are provided to the RTC113 ST-Module via the RTC
communication card (YAB117) in the sc1000.

3.2.1 Power supply of the sc sensors and the sc1000 controller

See operating instructions of the respective sc sensors and the sc1000 controller.

3.3 sc1000 controller connection

Connect the SUB-D plug supplied to a dual-core, sheathed data cable (signal or bus
cable). For additional information regarding the data cable connection, refer to the
enclosed assembly instructions.

17

Installation

3.4 Connection to the automation unit on the plant side

The one-channel and two-channel versions of the ST-Module are equipped with various
modules that must be connected to the plant automation system.

• The feed flow rate must be provided to the ST-Module as a 0/4 to 20 mA signal.

• The polymer flow rate must be provided (on both versions) to the ST-Module as a
0/4 to 20 mA signal.

• The status signal of the thickened sludge pump (on/off) must be a digital input signal
(24 V/0 V).

• The polymer pump can be operated in pulse/pause mode (PWM).

• The status signals and fault indications are output as 0 V/24 V signals.

• Measurement errors are shown 5 minutes after the error occurs. In the event of a new
startup (return of power supply), the unit is set back to ON (24 V) after approximately
1 minute and 40 seconds if there are no measurement errors.

• In the event of a new startup (return of power supply), the RTC operating signal is set
back to ON (24 V) after approximately 1 minute and 25 seconds.

Table3 Connections for the 1-channel RTC113 ST-Module

Module Name Connection Signal Function

2x digital input KL1002

4x digital output

2x analog output KL4012

1x analog input KL3011 1(+) - 2(-) 0/4 to 20 mA Input of the feed flow rate
1x analog input KL3011 1(+) - 2(-) 0/4 to 20 mA Input of the polymer flow rate
Bus termination KL9010 Bus termination

1

KL2134

1 Input + 24 V/0 V Status of thickened sludge pump (on/off)
2 Source + 24 V 24 V for relay
1 +24 V/0 V Polymer pump on/off (24 V/0 V)

5+24V/0V

4 +24 V/0 V Input signals OK (24 V), input signal faulty (0 V)
8 +24 V/0 V RTC operational (24 V), RTC faulty (0 V)
1(+) - 3(-) 0/4 to 20 mA Output of the polymer pump flow rate
5(+) - 7(-) 0/4 to 20 mA Output of the feed flow rate

Closed-loop control of the feed flow rate
active/inactive (24 V/0 V)

1

Ground to connection 3 and 7 or to the supply voltage connections

Table4 Connections for the 2-channel RTC113 ST-Module

Module Name Connection Signal Channel Function

1 Input + 24 V/0 V 1 Status of thickened sludge pump (on/off)

4x digital input KL1002

2 Source + 24 V 1 24 V for relay
5 Input + 24 V/0 V 2 Status of thickened sludge pump (on/off)
6 Source + 24 V 2 24 V for relay

18

Table4 Connections for the 2-channel RTC113 ST-Module

Module Name Connection Signal Channel Function

1 +24 V/0 V 1 Polymer pump on/off (24 V/0 V)

5+24V/0V1

2 +24 V/0 V 1 Input signals OK (24 V), input signal faulty (0 V)

8x digital

1

output

2x analog
output

2x analog
output

1x analog input KL3011 1(+) - 2(-) 0/4 to 20 mA 1 Input of the feed flow rate
1x analog input KL3011 1(+) - 2(-) 0/4 to 20 mA 1 Input of the polymer flow rate
1x analog input KL3011 1(+) - 2(-) 0/4 to 20 mA 2 Input of the feed flow rate
1x analog input KL3011 1(+) - 2(-) 0/4 to 20 mA 2 Input of the polymer flow rate
Bus termination KL9010 Bus termination

KL2408

KL4012

KL4012

6 +24 V/0 V 1 RTC operational (24 V), RTC faulty (0 V)
3 +24 V/0 V 2 Polymer pump on/off (24 V/0 V)

7+24V/0V2

4 +24 V/0 V 2 Input signals OK (24 V), input signal faulty (0 V)
8 +24 V/0 V 2 RTC operational (24 V), RTC faulty (0 V)
1(+) - 3(-) 0/4 to 20 mA 1 Output of the polymer pump flow rate
5(+) - 7(-) 0/4 to 20 mA 1 Output of the feed flow rate
1(+) - 3(-) 0/4 to 20 mA 2 Output of the polymer pump flow rate
5(+) - 7(-) 0/4 to 20 mA 2 Output of the feed flow rate

Closed-loop control of the feed flow rate
active/inactive (24 V/0 V)

Closed-loop control of the feed flow rate
active/inactive (24 V/0 V)

Installation

1

Ground to connection 3 and 7 or to the supply voltage connections

19

Installation

20

Section4 Parameterization and operation

4.1 Operating the sc controller

The RTC Module can only be operated via the sc1000 controller
in conjunction with the RTC communication card. Before the RTC
Module is used, the user must be familiar with the functionality of
the sc1000 controller. Learn how to navigate through the menu
and perform the relevant functions.

4.2 sc1000 setup

1. Open the MAIN MENU.

2. Select

3. Select

4. Select

RTC MODULES / PROGNOSYS and confirm.
RTC MODULES and confirm.
RTC and confirm.

4.3 Menu structure

4.3.1 DIAGNOSIS

DIAGNOSIS

RTC

ERROR LIST

WARNING LIST

REMINDER LIST

Possible error messages:
RTC MISSING, RTC CRC, CHECK CONFIG, RTC FAILURE

Possible warning messages:
MODBUS ADDRESS, PROBE SERVICE

Note: Refer to Section6 Troubleshooting, page37 for a list of all
possible error and warning messages together with a description of all
necessary countermeasures to be taken.

4.4 Configuration of RTC113 ST-Module parameters on the sc1000 controller

The following menu items are in the SC1000 SETUP menu.

4.4.1 RTC113 ST-Module open and closed-loop controller

RTC MODULES / PROGNOSYS

RTC MODULES

RTC

CONFIGURE

SELECT SENSOR

Select the sensors installed for the open/closed-loop controller
(refer to section4.5, page26).

21

Parameterization and operation

4.4.1 RTC113 ST-Module open and closed-loop controller (Continued)

RTC MODULES / PROGNOSYS

RTC MODULES

RTC

PRESELECT PROG.

CHANNEL 1

Based on the feed flow rate [m³/h] and measured TSS
POLYMER DOSING
CONTROL

FEED FLOW CONTROL

CLOSED LOOP EFFLUENT
CONTROL

CHANNEL 2 As per channel one

concentration [g/L] from the influent, the polymer dosing rate

[L/h] is calculated such that it corresponds to the target specific

polymer dosing rate [g/kg].

Based on the measured TSS concentration [g/L] and a fixed

polymer dosing rate [L/h], the feed flow [m

that it corresponds to the specific polymer dosing rate [g/kg].

If activated, the specific polymer dosing rate FACTOR

POLYMER DOSING is adjusted based on the difference

between the target and actual TSS concentration in the

thickened sludge.

The change in the specific dosing rate affects the polymer

dosing rate [L/h] in the POLYMER DOSING CONTROL module

and affects the feed flow rate in the FEED FLOW CONTROL

module.

3

/h] is calculated such

Activation/
deactivation

Activation/
deactivation

Activation/
deactivation

22

Parameterization and operation

4.4.1 RTC113 ST-Module open and closed-loop controller (Continued)

RTC MODULES / PROGNOSYS

RTC MODULES

RTC

CONTROL PARAMETER

CHANNEL 1

FACTOR POLYMER
DOSING

POLYMER CONCEN­TRATION

MANUAL POLYMER
DOSING

MANUAL FEED FLOW

MAX DECREASE CLOSED
L

MAX INCREASE CLOSED L

SET-POINT TSS

P GAIN TSS

INTEGRAL TIME TSS

DERIVATIVE TIME TSS

CHANNEL 2 As per channel one

Required specific polymer dosing [g/kg]. This parameter
determines how many grams of polymer per kilogram of TSS
are fed by the machine.

Polymer concentration [g/L] fed via the polymer pump. g/L

The RTC outputs the polymer flow rate [L/h] if

• FEED FLOW CONTROL is activated

• No open-loop control mode (see above) is activated

• The TSS measurement from the influent reports an error, or

• The flow measurement from the influent reports an error.
The RTC outputs the feed flow rate [m³/h] if

• POLYMER DOSING CONTROL is activated

• No open-loop control mode (see above) is activated

• The TSS measurement from the influent reports an error, or

• The flow measurement from the influent reports an error
This value defines the maximum decrease of the specific

polymer dosing rate FACTOR POLYMER DOSING [g/kg] if
CLOSED LOOP EFFLUENT CONTROL is selected.

This value defines the maximum increase of the specific
polymer dosing rate FACTOR POLYMER DOSING [g/kg] if
CLOSED LOOP EFFLUENT CONTROL is selected.

Required setpoint of the TSS concentration in the thickened
sludge.

Note: This parameter is only considered if CLOSED LOOP
EFFLUENT CONTROL is activated.

Proportional gain for the PID closed-loop controller for the TSS
concentration in the thickened sludge.

Note: P GAIN TSS [L/g] is divided by 100 before it is multiplied
by the deviation of the actual TSS concentration from the
required TSS setpoint.

Integral time for the PID closed-loop controller for the TSS
concentration in the thickened sludge.

Note: INTEGRAL TIME TSS is set to "0" to deactivate the
integral part of the PI open-loop controller.

Derivative time for the PID closed-loop controller for the TSS
concentration in the thickened sludge.

g/kg

L/h

m³/h

g/kg

g/kg

g/L

L/g

min

min

23

Parameterization and operation

4.4.1 RTC113 ST-Module open and closed-loop controller (Continued)

RTC MODULES / PROGNOSYS

RTC MODULES

RTC

INPUT/OUTPUT LIMITS

CHANNEL 1

3

FEED FLOW LOW

FEED FLOW HIGH

FEED FLOW SMOOTHING

LIMIT TSS IN LOW

LIMIT MAX TSS IN HIGH

TSS IN SMOOTHING

LIMIT TSS OUT LOW

LIMIT TSS OUT HIGH

TSS OUT SMOOTHING

Feed flow rate input signals below this value [m

this value (to avoid low flow peaks).

Feed flow rate input signals above this value [m

this value (to avoid high flow peaks).

Feed flow measurement values are smoothed in line with this

parameter.

TSS measurement values from the influent that are below this

value [g/L] are set to this value (to avoid low peaks).

TSS measurement values from the influent that are above this

value [g/L] are set to this value (to avoid high peaks).

The TSS measurement values from the influent are smoothed in

line with this parameter.

The TSS values of the thickened sludge that are below this

value [g/L] are set to this value (to avoid low peaks).

The TSS values of the thickened sludge that are above this

value [g/L] are set to this value (to avoid high peaks).

The TSS measurement values from the effluent are smoothed in

line with this parameter.

When FEED FLOW CONTROL is activated, measurement
POLYMER DOSING
MINIMUM

values for the polymer dosing rate that are below this value

[m³/h] are set to this value (to avoid low peaks in the dosing

flow).

Any RTC calculation above this value [g/L] is set to this value

and delivered to the polymer pump.
POLYMER DOSING

MAXIMUM

When FEED FLOW CONTROL is activated, measurement

values for the polymer dosing rate that are above this value

[m³/h] are set to this value (to avoid high peaks in the dosing

flow).

CHANNEL 2 As per channel one

INPUTS

CHANNEL 1

MIN FEED FLOW

MAX FEED FLOW

0/4...20mA

MIN POLYMER FLOW

MAX POLYMER FLOW

0/4...20mA

Minimum flow rate [m³/h] from the influent in accordance with

the 0/4 mA measurement signal.

Maximum flow rate [m³/h] from the influent in accordance with

the 20 mA measurement signal.

Transfer range of 0/4 to 20 mA current loop (as set in connected

flow measuring instrument).

Minimum polymer dosing in [L/h] in accordance with the 0/4 mA

measurement signal.

Maximum polymer dosing in [L/h] in accordance with the 20 mA

measurement signal.

Transfer range of 0/4 to 20 mA current loop (as set on

connected flow measuring instrument).

CHANNEL 2 As per channel one

/h] are set to

3

/h] are set to

3

m

3

m

min

g/L

g/L

min

g/L

g/L

min

L/h

L/h

m³/h

m³/h

L/h

L/h

/h

/h

24

Parameterization and operation

4.4.1 RTC113 ST-Module open and closed-loop controller (Continued)

RTC MODULES / PROGNOSYS

RTC MODULES

RTC

OUTPUTS

CHANNEL 1

MIN FEED FLOW Minimum feed flow rate [m³/h] in accordance with 0/4 mA. m³/h
MAX FEED FLOW Maximum feed flow rate [m³/h] in accordance with 20 mA. m³/h

0/4...20mA

MIN POLYMER FLOW

MAX POLYMER FLOW

0/4...20mA

CONTROL CYCLE

MIN RUNTIME

CHANNEL 2 As per channel one

MODBUS

ADDRESS

DATA ORDER

DATALOG INTRVL Indicates the interval in which the data is saved in the log file. [min]
SET DEFAULTS Restores the factory settings.

MAINTENANCE

RTC DATA

RTC MEASUREMEN

RTC ACTUAT VAR

DIAG/TEST

EEPROM Hardware test
RTC COMM TO Communication time-out
RTC CRC Communication check sum

MODBUS ADDRESS

Transfer range of 0/4 to 20 mA current loop (as set on
connected flow measuring instrument).

Minimum polymer pump delivery rate in accordance with
0/4 mA.

Maximum polymer pump delivery rate in accordance with
20 mA.

Transfer range of 0/4 to 20 mA current loop (as set on
connected flow measuring instrument).

Pulse/pause mode for the polymer pump open-loop control for
dosing rates beneath the minimum polymer flow rate (MIN
POLYMER FLOW). The on/off duration in pulse/pause mode
can be affected by the duration of the CONTROL CYCLE. For
example, with a CONTROL CYCLE of 100 seconds and a
dosing control value of 60 %, the polymer pump is regularly
switched on for 60 seconds and switched off for 40 seconds.
Short cycle times increase the switching frequency but enable
more precise adaptation to individual requirements. CONTROL
CYCLE should be divisible by MIN RUNTIME and produce a
whole number.

The minimum ON time in pulse/pause dosing mode. The pump
is not activated for periods shorter than this. The MIN RUNTIME
must be shorter than the duration of the CONTROL CYCLE.

Start address of an RTC within the Modbus network. Default
setting: 41–61

Specifies the register order within a double word. Presetting:
NORMAL

Specifies the value measured by the RTC, e. g. the influent
measurement.

Specifies the variable calculated by the RTC, e. g. whether the
aeration should be switched on or off.

Here, the address is displayed where the communication
actually takes place. Presetting: 41

L/h

L/h

s

s

25

Parameterization and operation

4.5 Select sensors

Figure6 Select sensor

1. To select sensors and their sequence for the RTC Module,
press RTC > CONFIGURE > SELECT SENSOR.

1ENTER — Saves the setting and returns to the

CONFIGURE menu.

2CANCEL — Returns to the CONFIGURE menu without

saving.

3ADD — Adds a new sensor to the selection.

2. Press
A selection list of all subscribers to the sc1000 network

opens.

3. Press the required sensor for the RTC Module and confirm
by pressing

Sensors in black type are available for the RTC Module.
Sensors in red type are not available for the RTC Module.

Note: Sensors marked (p) are available for PROGNOSYS if these
sensors have been selected in conjunction with an RTC (refer to the
PROGNOSYS user manual).

4 DELETE — Removes a sensor from the selection.

5UP/DOWN — Moves the sensors up or down.

ADD (Figure6, item 3).

ENTER below the selection list.

26

Parameterization and operation

4. The selected sensor is shown in the sensor list.
Press

ADD (Figure6, item 3) to open the selection list again.

5. Select the second sensor for the RTC Module and confirm
by pressing

Note: Previously selected sensors are shown in gray.

The selected sensors are shown in the sensor list.

ENTER below the selection list.

6. To sort the sensors in the order specified for the RTC
Module, press the sensor and use the arrow keys to move it
(Figure6, item 5).
Press

DELETE (Figure6, item 4) to remove an incorrect

sensor from the sensor list again.

7. Press ENTER (Figure6, item 1) to confirm the list once it is
finished.

27

Parameterization and operation

4.6 PRESELECT PROG

4.6.1 POLYMER DOSING CONTROL

4.6.2 FEED FLOW CONTROL

Based on the measured feed flow rate [m³/h] and the measured
TSS concentration [g/L] from the influent, the polymer dosing rate
[L/h] is calculated such that the setpoint corresponds to the
specific polymer dosing rate [g/kg].

Note: This open-loop control mode can only be activated if FEED FLOW
CONTROL is deactivated.

Note: The polymer flow rate is controlled via the RTC.

Based on the measured TSS concentration [g/L] and the
specified polymer dosing rate [L/h], the feed flow rate is
calculated such that it corresponds with the specific polymer
dosing rate [g/kg] (FACTOR POLYMER DOSING).

Note: This open-loop control mode can only be activated if POLYMER
DOSING CONTROL is deactivated.

Note: The feed flow rate is controlled via the RTC.

4.6.3 CLOSED LOOP EFFLUENT CONTROL

If activated, the specific polymer dosing rate FACTOR POLYMER
DOSING is adjusted based on the difference between the target
and actual TSS concentration in the thickened sludge.

If FEED FLOW CONTROL is activated, the TSS load fed with the
sludge thickening is adjusted based on the difference between
the target and actual TSS concentration in the filtrate.

Note: This closed-loop control can only be activated if POLYMER
DOSING CONTROL (section4.6.1) or FEED FLOW CONTROL
(section4.6.2) is activated.

4.7 CONTROL PARAMETER

4.7.1 FACTOR POLYMER DOSING

Required specific polymer dosing [g/kg]. This parameter
determines how many grams of polymer per kilogram of TSS are
fed by the machine.

4.7.2 POLYMER CONCENTRATION

28

Polymer concentration [g/L] fed via the polymer pump.

4.7.3 MANUAL POLYMER DOSING

4.7.4 MANUAL FEED FLOW

4.7.5 MAX DECREASE CLOSED L

Parameterization and operation

The RTC outputs the polymer dosing rate [L/h] if

• FEED FLOW CONTROL is activated

• No open-loop control mode (section4.6.1 to section4.6.3) is
activated

• The TSS measurement from the influent reports an error, or

• The flow measurement from the influent reports an error.

The RTC outputs the feed flow rate [m3/h] if

• POLYMER DOSING CONTROL is activated

• No open-loop control mode (section4.6.1 to section4.6.3) is
activated

• The TSS measurement at the inlet reports an error, or

• The flow measurement from the influent reports an error.

4.7.6 MAX INCREASE CLOSED L

4.7.7 SET-POINT TSS

4.7.8 P GAIN TSS

This value defines the maximum decrease of the specific polymer
dosing rate FACTOR POLYMER DOSING [g/kg] if CLOSED
LOOP EFFLUENT CONTROL is selected.

This value defines the maximum increase of the specific polymer
dosing rate FACTOR POLYMER DOSING [g/kg] if CLOSED
LOOP EFFLUENT CONTROL is selected.

Required setpoint of the TSS concentration in the thickened
sludge.

Note: · This parameter is only considered if CLOSED LOOP EFFLUENT
CONTROL (section4.6.3) is activated.

Proportional gain for the PID closed-loop controller for the TSS
concentration in the thickened sludge.

Note: P GAIN TSS [L/g] is divided by 100 before it is multiplied by the
deviation of the actual TSS concentration from the required TSS
setpoint.

4.7.9 INTEGRAL TIME TSS

Integral time for the PID closed-loop controller for the TSS
concentration in the thickened sludge.

Note: INTEGRAL TIME TSS is set to "0" to deactivate the integral part of
the PI open-loop controller.

29

Parameterization and operation

4.7.10 DERIVATIVE TIME TSS

4.8 INPUT/OUTPUT LIMITS

4.8.1 FEED FLOW LOW

4.8.2 FEED FLOW HIGH

4.8.3 FEED FLOW SMOOTHING

Derivative time for the PID closed-loop controller for the TSS
concentration in the thickened sludge.

Feed flow rate input signals below this value [m3/h] are set to this
value. This means that very low feed flow rates can be avoided.

Feed flow rate input signals above this value [m3/h] are set to this
value. This avoids load peaks.

Feed flow measurement values are smoothed in line with this
parameter.

SMOOTHING = 1: The signal for the flow rate measurement
is not smoothed.

4.8.4 LIMIT TSS IN LOW

4.8.5 LIMIT MAX TSS IN HIGH

4.8.6 TSS IN SMOOTHING

SMOOTHING = 2: Smoothing is performed over 3 minutes.
SMOOTHING = 3: Smoothing is performed over 5 minutes.
SMOOTHING = 5: Smoothing is performed over 12 minutes.
SMOOTHING = 10: Smoothing is performed over

25 minutes.
Example:
With the setting SMOOTHING = 2, it takes 3 minutes for the

smoothed value to reach 95 % of the final value after an abrupt
change in the feed flow rate.

TSS measurement values from the influent that are below this
value [g/L] are set to this value (to avoid low peaks).

Measurement values from the influent that are above this value
[g/L] are set to this value (to avoid high peaks).

TSS measurement values from the influent are smoothed in line
with this parameter.

30

SMOOTHING = 1: The signal is not smoothed.

SMOOTHING = 2: Smoothing is performed over 3 minutes.

SMOOTHING = 3: Smoothing is performed over 5 minutes.

SMOOTHING = 5: Smoothing is performed over 12 minutes.

SMOOTHING = 10: Smoothing is performed over

25 minutes.

4.8.7 LIMIT TSS OUT LOW

4.8.8 LIMIT TSS OUT HIGH

Parameterization and operation

TSS measurement values for the thickened sludge that are below
this value [g/L] are set to this value (to avoid low peaks).

4.8.9 TSS OUT SMOOTHING

4.8.10 POLYMER DOSING MINIMUM

TSS measurement values for the thickened sludge that are
above this value [m

TSS measurement values from the effluent are smoothed in line
with this parameter.

SMOOTHING = 1: The signal is not smoothed.
SMOOTHING = 2: Smoothing is performed over 3 minutes.
SMOOTHING = 3: Smoothing is performed over 5 minutes.
SMOOTHING = 5: Smoothing is performed over 12 minutes.
SMOOTHING = 10: Smoothing is performed over

25 minutes.

RTC calculations below this value [g/L] are set to this value and
transferred to the polymer pump.

Note: When FEED FLOW CONTROL is activated, measurement values
for the polymer dosing rate that are below this value [m
value (to avoid low peaks in the dosing flow).

3

/h] are set to this value (to avoid high peaks).

3

/h] are set to this

4.8.11 POLYMER DOSING MAXIMUM

4.9 INPUTS

4.9.1 MIN FEED FLOW

4.9.2 MAX FEED FLOW

4.9.3 0/4...20 mA

RTC calculations above this value [g/L] are set to this value and
transferred to the polymer pump.

Note: When FEED FLOW CONTROL is activated, measurement values
for the polymer dosing rate that are above this value [m
value (to avoid high peaks in the dosing flow).

Minimum flow rate [m³/h] from the influent in accordance with the
0/4 mA measurement signal.

Maximum flow rate [m³/h] from the influent in accordance with the
20 mA measurement signal.

Transfer range of the 0/4 to 20 mA current loop (as set in
connected flow measuring instrument).

3

/h] are set to this

31

Parameterization and operation

4.9.4 MIN POLYMER FLOW

4.9.5 MAX POLYMER FLOW

4.9.6 0/4...20 mA

4.10 OUTPUTS

4.10.1 MIN FEED FLOW

4.10.2 MAX FEED FLOW

Minimum polymer dosing in [L/h] in accordance with the 0/4 mA
measurement signal.

Maximum polymer dosing in [L/h] in accordance with the 20 mA
measurement signal.

Transfer range of the 0/4 to 20 mA current loop (as set in
connected flow measuring instrument).

Minimum feed flow rate [m³/h] in accordance with 0/4 mA.

Maximum feed flow rate [m³/h] in accordance with 20 mA.

4.10.3 0/4...20 mA

4.10.4 MIN POLYMER FLOW

4.10.5 MAX POLYMER FLOW

4.10.6 0/4...20 mA

4.10.7 CONTROL CYCLE

Transfer range of 0/4 to 20 mA current loop (as set in connected
flow measuring instrument).

Minimum polymer pump delivery rate in accordance with 0/4 mA.

Maximum polymer pump delivery rate in accordance with 20 mA.

Transfer range of 0/4 to 20 mA current loop (as set in connected
flow measuring instrument).

Pulse/pause mode for the polymer pump open-loop control for
dosing rates beneath the minimum polymer flow rate (MIN
POLYMER FLOW). The on/off duration in pulse/pause mode can
be affected by the duration of the CONTROL CYCLE. For
example, with a CONTROL CYCLE of 100 seconds and a dosing
control value of 60 %, the polymer pump is switched on for
60 seconds and switched off for 40 seconds. Short cycle times
increase the switching frequency but enable more precise
adaptation to individual requirements.

32

Note: CONTROL CYCLE must be divisible by MIN RUNTIME and
produce a whole number.

Parameterization and operation

4.10.8 MIN RUNTIME

Minimum ON time in pulse/pause dosing mode. The pump is
activated for this runtime at the very least. The MIN RUNTIME
must be shorter than the duration of the CONTROL CYCLE.

4.11 Displayed measurement values and variables

The following measurement values and variables are shown on
the sc1000 display and transferred via fieldbus (refer to

sectionAppendixB).

RTC113 ST-Module, one-channel Parameter Unit Description

3

Measurement 1 Qin 1 m
Measurement 2 Qavg 1 m
Measurement 3 Qdos1 L/h Polymer flow rate
Measurement 4 TSin 1 g/L TSS concentration from the influent
Measurement 5 TSef 1 g/L TSS concentration from the effluent
Actuat var 6 Pdos1 L/h Polymer dosing
Actuat var 7 Fact 1 g/kg Specific polymer dosing
Actuat var 8 Feed 1 m

/h Flow rate from the influent

3

/h Average flow rate

3

/h Feed flow rate

RTC113 ST-Module, two-channel Parameter Unit Description

3

Measurement 1 Qin 1 m
Measurement 2 Qavg 1 m
Measurement 3 Qdos 1 L/h Polymer flow rate 1
Measurement 4 TSin 1 g/L TSS concentration from the influent 1
Measurement 5 TSef 1 g/L TSS concentration in the effluent 1
Measurement 6 Qin 2 m
Measurement 7 Qavg 2 m
Measurement 8 Qdos 2 L/h Polymer flow rate 2
Measurement 9 TSin 2 g/L TSS concentration from the influent 2
Measurement 10 TSef 2 g/L TSS concentration in the effluent 2
Actuat var 11 Pdos 1 L/h Polymer dosing 1
Actuat var 12 Fact 1 g/kg Specific polymer dosing 1
Actuat var 13 Feed 1 m
Actuat var 14 Pdos2 L/h Polymer dosing 2
Actuat var 15 Fact 2 g/kg Specific polymer dosing 2
Actuat var 16 Feed 2 m

/h Flow rate from the influent 1

3

/h Average flow rate

3

/h Flow rate from the influent 2

3

/h Average flow rate

3

/h Feed flow rate 1

3

/h Feed flow rate 2

33

Parameterization and operation

34

Section5 Maintenance

Multiple hazards
Only qualified personnel must conduct the tasks described in this section of the manual.

5.1 Maintenance schedule

Interval Maintenance task

DANGER

Visual inspection

CF card 2 years

Battery 5 years

Application-specific Check for contamination and corrosion

Replacement by manufacturer's service department (Section8,

page41)

Replacement by manufacturer's service department (Section8,

page41)

35

Maintenance

36

Section6 Troubleshooting

6.1 Error messages

Possible RTC errors are displayed by the sc controller.

Table5

Displayed errors Cause Resolution

Supply RTC with voltage

RTC MISSING

RTC CRC

CHECK CONFIG

RTC FAILURE

INFLOW1 NOT G. Influent measurement signal faulty Test sensor, check cable connections
INFLOW2 NOT G. Influent measurement signal faulty Test sensor, check cable connections

No communication between RTC and RTC
communication card

Interrupted communication between RTC and
RTC communication card

The sensor selection of the RTC was deleted
by deleting or selecting a new sc1000
participant.

Brief general read/write error on the CF card,
mostly caused by a brief interruption to the
power supply.

Test connection cable
Reset the sc1000 and the RTC (switch so it is

completely voltage free and switch back on)
Make sure +/- connections of the connector

cable between RTC and RTC communication
card in the sc1000 are installed correctly.

From MAIN MENU > RTC MODULES /
PROGNOSYS > RTC MODULES > RTC >
CONFIGURE > SELECT SENSOR, select the
correct sensor for the RTC again and confirm.

Acknowledge error. If this message is shown
frequently, eliminate the cause of the power
disruptions. If necessary, inform the service
team of the manufacturer (Section8, page41).

6.2 Warnings

Possible RTC sensor warnings are displayed by the sc controller.

Table6

Displayed warnings Cause Resolution

The RTC menu SET DEFAULTS was opened.

MODBUS ADDRESS

PROBE SERVICE A configured sensor is in service status. The sensor must exit service status.

This deleted the Modbus address of the RTC in
the sc1000.

Go to MAIN MENU > RTC MODULES /
PROGNOSYS > RTC MODULES > RTC >
CONFIGURE > MODBUS > ADDRESS and
set the correct MODBUS address.

6.3 Wear parts

Table7

Designation Number Service life

CF card, type RTC module 1 piece
Battery 1 piece

~2years
~5years

37

Troubleshooting

38

Section7 Replacement parts and accessories

7.1 Replacement parts

Description Cat. No

DIN rail NS 35/15, punched according to DIN EN 60715 TH35, made of galvanized steel.
Length: 35 cm (13.78 in.)

Transformer 90–240 V AC/24 V DC 0.75 A, module for DIN rail assembly LZH166
Terminal for 24 V connection without power supply LZH167
Terminal for protective earth LZH168
SUB-D connector LZH169
C2 circuit breaker LZH170
CPU base module with Ethernet port, passive ventilation element. (CX1010-0021) and

RS422/485 connection module (CX1010-N031)
Power supply module, consisting of a bus coupler and a 24 V terminal module (CX1100-0002) LZH172
Digital output module 24 V DC (4 outputs) (KL2134) LZH174
Analog output module (2 outputs) (KL4012) LZH176
Analog input module (1 input) (KL3011) LZH177
Digital input module 24 V DC (2 inputs) (KL1002) LZH204
Digital output module 24 V DC (8 outputs) (KL2408) LZH205
Bus termination module (KL9010) LZH178
RTC communication card YAB117
CF card type RTC-Module LZY748-00

LZH165

LZH171

39

Replacement parts and accessories

40

Section8 Contact information

HACH Company
World Headquarters

P.O. Box 389
Loveland, Colorado
80539-0389 U.S.A.
Tel (800) 227-HACH
(800) -227-4224
(U.S.A. only)
Fax [phone]
[e-mail]
www.hach.com

HACH LANGE GMBH
Willstätterstraße 11

D-40549 Düsseldorf
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.de

HACH LANGE GMBH
Rorschacherstrasse 30a

CH-9424 Rheineck
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.ch

HACH LANGE APS
Åkandevej 21

DK-2700 Brønshøj
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.dk

Repair Service in the
United States:

HACH Company
Ames Service
100 Dayton Avenue
Ames, Iowa 50010
Tel [phone]
(U.S.A. only)
Fax [phone]

HACH LANGE LTD
Pacific Way

Salford
GB-Manchester, M50 1DL
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.co.uk

HACH LANGE FRANCE
S.A.S.

8, mail Barthélémy Thimonnier
Lognes
F-77437 Marne-La-Vallée
cedex 2
Tél. [phone]
Fax [phone]
[e-mail]
www.hach-lange.fr

HACH LANGE AB
Vinthundsvägen 159A

SE-128 62 Sköndal
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.se

Repair Service in Canada:
Hach Sales & Service

Canada Ltd.
1313 Border Street, Unit 34
Winnipeg, Manitoba
R3H 0X4
Tel [phone]
(Canada only)
Tel [phone]
Fax [phone]
[e-mail]

HACH LANGE LTD
Unit 1, Chestnut Road

Western Industrial Estate
IRL-Dublin 12
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.ie

HACH LANGE NV/SA
Motstraat 54

B-2800 Mechelen
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.be

HACH LANGE S.R.L.
Via Rossini, 1/A

I-20020 Lainate (MI)
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.it

Repair Service in
Latin America, the Caribbean,
the Far East, Indian
Subcontinent, Africa, Europe,
or the Middle East:

Hach Company World
Headquarters,
P.O. Box 389
Loveland, Colorado,
80539-0389 U.S.A.
Tel [phone]
Fax [phone]
[e-mail]

HACH LANGE GMBH
Hütteldorfer Str. 299/Top 6

A-1140 Wien
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.at

DR. LANGE NEDERLAND
B.V.

Laan van Westroijen 2a
NL-4003 AZ Tiel
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.nl

HACH LANGE S.L.U.
Edificio Seminario

C/Larrauri, 1C- 2ª Pl.
E-48160 Derio/Vizcaya
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.es

HACH LANGE LDA
Av. do Forte nº8

Fracção M
P-2790-072 Carnaxide
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.pt

HACH LANGE KFT.
Vöröskereszt utca. 8-10.
H-1222 Budapest XXII. ker.

Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.hu

HACH LANGE SP. ZO.O.
ul. Krakowska 119

PL-50-428 Wrocław
Tel. [phone]
Zamówienia: [phone]
Doradztwo: [phone]
Fax [phone]
[e-mail]
www.hach-lange.pl

HACH LANGE S.R.L.
Str. Căminului nr. 3,

et. 1, ap. 1, Sector 2
RO-021741 Bucureşti
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.ro

HACH LANGE S.R.O.
Zastrčená 1278/8

CZ-141 00 Praha 4 - Chodov
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.cz

HACH LANGE
8, Kr. Sarafov str.

BG-1164 Sofia
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.bg

HACH LANGE S.R.O.
Roľnícka 21

SK-831 07 Bratislava –
Vajnory
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.sk

HACH LANGE SU
ANALİZ SİSTEMLERİ
LTD.ŞTİ.

Ilkbahar mah. Galip Erdem
Cad. 616 Sok. No:9
TR-Oran-Çankaya/ANKARA
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.com.tr

41

Contact information

HACH LANGE D.O.O.
Fajfarjeva 15

SI-1230 Domžale
Tel. [phone]
Fax [phone]
[e-mail]
www.hach-lange.si

HACH LANGE OOO
Finlyandsky prospekt, 4A

Business Zentrum “Petrovsky
fort”, R.803
RU-194044, Sankt-Petersburg
Tel. [phone]
Fax. [phone]
[e-mail]
www.hach-lange.com

ΗΑCH LANGE E.Π.Ε.
Αυλίδος 27

GR-115 27 Αθήνα
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HACH LANGE D.O.O.
Ivana Severa bb

HR-42 000 Varaždin
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HACH LANGE MAROC
SARLAU

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42

Section9 Warranty and liability

The manufacturer warrants that the supplied product is free of material and manufacturing
defects, and undertakes to repair or to replace any defective parts without charge.

The warranty period is 24 months. If a maintenance contract is taken out within 6 months
of purchase, the warranty period is extended to 60 months.

With the exclusion of further claims, the supplier is liable for defects, including the lack of
assured properties, as follows: all parts that, within the warranty period calculated from the
day of the transfer of risk, can be demonstrated to have become unusable or that can only
be used with significant limitations owing to circumstances prior to transfer of risk, in
particular due to incorrect design, substandard materials or inadequate finish, shall be
repaired or replaced at the supplier's discretion. The identification of such defects must be
reported to the supplier in writing as soon as possible, but no later than 7 days after the
discovery of the fault. If the customer fails to notify the supplier, the product is considered
approved despite the defect. Further liability for indirect or direct damages is not accepted.

If device-specific maintenance- or inspection work prescribed by the supplier is to be
performed within the guarantee period by the customer (maintenance) or by the supplier
(inspection) and these requirements are not met, claims for damages that result from
non-observance of these requirements are void.

Further claims, in particular for consequential damages, cannot be made.
Wear and damage caused by improper handling, incorrect installation or non-designated

use are excluded from this clause.
The process instruments of the manufacturer have proven their reliability in many

applications and are therefore often used in automatic control loops to enable the most
economical and efficient operation of the relevant process.

To avoid or limit consequential damage, it is therefore recommended that the control loop
be designed such that an instrument malfunction results in an automatic changeover to
the backup control system. This guarantees the safest operating condition both for the
environment and the process.

43

Warranty and liability

44

AppendixA Modbus address setting

The same slave address must be set for Modbus communication on the sc1000 controller
display and in the RTC module. Since 20 slave numbers are reserved for internal
purposes, the following numbers are available for assignment:

1, 21, 41, 61, 81, 101…
The start address 41 is preset at the factory.

NOTICE

If this address is to be or must be changed because, for example, it has already been allocated
for another RTC, the changes must be made both on the sc1000 controller and on the CF card of
the RTC module.

This can only be done by the manufacturer service department (Section8)!

45

Modbus address setting

46

AppendixB Configuration of the network modules

B.1RTC113 ST-Module Profibus/Modbus telegram

Table8 RTC113 ST-Module, one-channel

Register Parameter Unit Description

3

MEASUREMENT 1 Qin 1 m
MEASUREMENT 2 Qavg 1 m
MEASUREMENT 3 Qdos1 L/h Polymer flow rate
MEASUREMENT 4 TSin 1 g/L TSS concentration in the inflow
MEASUREMENT 5 TSef 1 g/L TSS concentration in the outflow
ACTUAT VAR 6 Pdos1 L/h Polymer dosing
ACTUAT VAR 7 Fact 1 g/kg Specific polymer dosing
ACTUAT VAR 8 Feed 1 m

Table9 RTC113 ST-Module, two-channel

Register Parameter Unit Description

MEASUREMENT 1 Qin 1 m
MEASUREMENT 2 Qavg 1 m
MEASUREMENT 3 Qdos 1 L/h Polymer flow rate 1
MEASUREMENT 4 TSin 1 g/L TSS concentration in inflow 1
MEASUREMENT 5 TSef 1 g/L TSS concentration in outflow 1
MEASUREMENT 6 Qin 2 m
MEASUREMENT 7 Qavg 2 m
MEASUREMENT 8 Qdos 2 L/h Polymer flow rate 2
MEASUREMENT 9 TSin 2 g/L TSS concentration in inflow 2
MEASUREMENT 10 TSef 2 g/L TSS concentration in outflow 2
ACTUAT VAR 11 Pdos 1 L/h Polymer dosing 1
ACTUAT VAR 12 Fact 1 g/kg Specific polymer dosing 1
ACTUAT VAR 13 Feed 1 m
ACTUAT VAR 14 Pdos2 L/h Polymer dosing 2
ACTUAT VAR 15 Fact 2 g/kg Specific polymer dosing 2
ACTUAT VAR 16 Feed 2 m

/h Flow rate in the inflow

3

/h Average flow rate

3

/h Feed flow rate

3

/h Flow rate in inflow 1

3

/h Average flow rate

3

/h Flow rate from the influent 2

3

/h Average flow rate

3

/h Feed flow rate 1

3

/h Feed flow rate 2

47

Configuration of the network modules

48

Index

Numerics

1-channel version ..................................................... 18

2-channel version ..................................................... 18

A

Abmessungen .......................................................... 11

Address setting ........................................................ 45

aeration element ................................................ 11, 12

B

Battery compartment .......................................... 11, 12

C

Closed-loop controller behavior ............................... 13

Concentration of solids

SOLITAX sc .......................................................... 17

TSS ....................................................................... 17

Control cycle ............................................................ 25

D

DIN rail ..................................................................... 17

E

Embedded PC ............................................................ 7

Error messages ........................................................ 37

Ethernet port ...................................................... 11, 12

Expansion slot ............................................................ 7

F

Feed flow rate ............................................................ 7

Flash memory ............................................................ 7

I

Input

analog ..................................................................... 7

digital ...................................................................... 7

Inputmodule ............................................................. 13

Interfaces ................................................................... 7

Module

bus termination ..................................................... 13

input ...................................................................... 13

output .................................................................... 13

O

Open-loop control ..................................................... 14

feed flow ......................................................... 22, 28

Open-loop controller

polymer dosing ................................................ 22, 28

Operating system ....................................................... 7

Output

analog ..................................................................... 8

digital ...................................................................... 8

Outputmodule ........................................................... 13

P

Polymer consumption optimization .......................... 10

Polymer dosing .......................................................... 8

manual ............................................................ 23, 29

specific ...................................................... 13, 23, 28

Polymer flow rate ....................................................... 7

Polymer pump ............................................................ 8

S

Safety information ...................................................... 9

Slave address .......................................................... 45

Sludge thickening ..................................................... 10

Smoothing ................................................................ 31

Supply voltage .......................................................... 17

T

Technical data ............................................................ 7

Theory of operation .................................................. 13

Thickened sludge pump ....................................... 7, 13

TSS concentration

influent .................................................................. 13

thickened sludge ................................................... 13

M

Maintenance schedule ............................................. 35

W

Warning labels ........................................................... 9

Warnings .................................................................. 37

Warranty and liability ................................................ 43

49

Index

50