NIEUWKOOP EC3020 Bedienungsanleitung

USER MANUAL

EC3020

CONDUCTIVITY CONTROLLER

MICROPROCESSOR BASED

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

Conductivity scales : from 0/0.2000 µS tot 0/40.00 S

Temperature scale : -10/110 ˚C

Power supply : 110/220 Vac

Software

: R 2.1x

Valid also for option : P/N 091.3713

Cod. 28003763

Rev. D –10/18

INDEX

1 GENERAL WARNINGS AND INFORMATION FOR ALL USERS.............................................................................................................................3

1.1 WARRANTY.......................................................................................................................................................................................................................................3

1.2 AFTER SALES SERVICE............................................................................................................................................................................................................3

1.3 CE MARKING ...................................................................................................................................................................................................................................3

1.4 SAFETY WARNINGS..................................................................................................................................................................................................................3

2 GENERAL..............................................................................................................................................................................................................................................................4

3 SPECIFICATIONS.........................................................................................................................................................................................................................................5

3.1 FUNCTIONAL SPECIFICATIONS.........................................................................................................................................................................................5

3.2 PHYSICAL SPECIFICATIONS................................................................................................................................................................................................8

3.3 TECHNICAL SPECIFICATIONS...........................................................................................................................................................................................8

4 INSTALLATION..............................................................................................................................................................................................................................................12

4.1 PHYSICAL INSTALLATION.......................................................................................................................................................................................................12

4.2 ELECTRICAL INSTALLATION................................................................................................................................................................................................ 12

5 OPERATING THE SYSTEM..................................................................................................................................................................................................................15

6 SOFTWARE DESCRIPTION ...............................................................................................................................................................................................................15

6.1 KEYBOARD.......................................................................................................................................................................................................................................15

6.2 READOUT SEQUENCES.......................................................................................................................................................................................................16

6.3 CALIBRATION SEQUENCES...........................................................................................................................................................................................20

6.3.1 Manual automatic operating selection ...............................................................................................................................20

6.3.2 Indirect measuring calibration........................................................................................................................................................ 21

6.3.3 Zero and Sensitivity calibration......................................................................................................................................................23

6.3.4 Temperature calibration....................................................................................................................................................................... 25

6.3.5 Set-point A/B parameter calibration......................................................................................................................................27

6.3.6 Alarm parameter calibration ..........................................................................................................................................................38

6.4 CONFIGURATION ...................................................................................................................................................................................................................30

6.4.1 Keyboard lock/unlock..................................................................................................................................................................................30

6.4.2 LCD display contrast.....................................................................................................................................................................................31

6.4.3 New access number.....................................................................................................................................................................................31

6.4.4 Conductivity sensor type........................................................................................................................................................................31

6.4.5 Cell constant .........................................................................................................................................................................................................32

6.4.6 Measuring scale................................................................................................................................................................................................32

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

6.4.7 Autorange..................................................................................................................................................................................................................32

6.4.8 Software filter.......................................................................................................................................................................................................32

6.4.9 Indirect measure............................................................................................................................................................................................. 33

6.4.10 Reference Temperature...........................................................................................................................................................................37

6.4.11 Thermocompensation type...................................................................................................................................................................37

6.4.12 Table of thermocompensation.......................................................................................................................................................37

6.4.13 Thermocompensation coefficient .............................................................................................................................................45

6.4.14 Input related to the analog output n°1 (091.3713 option).................................................................................45

6.4.15 Analog output N°1 range.........................................................................................................................................................................46

6.4.16 Input related to the analog output n°2 (091.3713 option) .............................................................................46

6.4.17 Analog output N°2 range.........................................................................................................................................................................47

6.4.18 Set point A function........................................................................................................................................................................................47

6.4.19 Set point B function .......................................................................................................................................................................................48

6.4.20 Alarm on set-point A..................................................................................................................................................................................48

6.4.21 Alarm on set-point B....................................................................................................................................................................................49

6.4.22 Relay alarm status........................................................................................................................................................................................49

6.4.23 Type of alarm......................................................................................................................................................................................................50

6.4.24 Flashing alarm frequency ..................................................................................................................................................................50

6.4.25 New access number..................................................................................................................................................................................50

7 NORMAL OPERATION......................................................................................................................................................................................................................... 52

7.1 MANUAL OPERATION............................................................................................................................................................................................................... 52

7.2 MANUAL TEMPERATURE COMPENSATION.........................................................................................................................................................52

7.3 TEMPERATURE COEFFICIENT .......................................................................................................................................................................................... 52

8 CALIBRATION .............................................................................................................................................................................................................................................53

8.1 ELECTRICAL CALIBRATION.................................................................................................................................................................................................53

8.2 CHEMICAL CALIBRATION..................................................................................................................................................................................................53

8.3 STANDARD CONDUCTIVITY SOLUTIONS..........................................................................................................................................................54

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

1 GENERAL WARNINGS AND INFORMATION FOR ALL USERS

1.1 WARRANTY

This product is guaranteed for all manufacturing defects.

Please take a look at the terms and conditions described on the Warranty certificate at the end of the

manual.

1.2 AFTER SALES SERVICE

Nieuwkoop B.V./B&C offers to all of its Customers the following services:

-a free of charge technical assistance over the phone for problems regarding installation,

calibration and regular maintenance;

-a repairing service in our Aalsmeer (Netherlands) headquarter for all types of damages,

calibration or for a scheduled maintenance.

Please take a look at the technical support data sheet at the end of the manual for more details.

1.3 CE MARKING

This instrument is manufactured according to the following European Community directives:

- 2011/65/EU “Restriction of the use of certain hazardous substances in electrical and

electronic equipment”

- 2014/35/EU “Low Voltage” LV

- 2014/30/EU “Electromagnetic compatibility” EMC

- EN 61010-1/2011 “Low Voltage” LV

- EN 61326-1/2013 "Electromagnetic compatibility" EMC

- Controlled electromagnetic environment

- EN 55011/2009 “Radio-frequency disturbance characteristics”

- Class A (devices for usage in all establishment other than domestic)

- Group 1 (Industrial equipment that do not exceed 9kHz)

The marking is placed on the packaging and on the S/N label of the instrument.

1.4 SAFETY WARNINGS

It is important to underline the fact that electronic instruments are subject to accidents. For this, it is

important to take all necessary precautions to avoid damages caused by malfunctions.

All types of operations must be performed by authorized and trained staff.

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

2 GENERAL

The Conductivity meter is used to detect specific Conductivities of liquids and to control the

contents of the salt or the ionic concentrations of liquids.

In the case of low concentrations, all salts break into ions and the measurement of

Conductivity

indicates the salt contents or ionic concentration. There is a linear dependence

of the Conductivity

on the concentration or on the salt contents.

In the case of higher concentrations the linearity is disturbed by incomplete dissociation.

The

concentration is achieved by the Conductance curve.

The measuring of Conductivity is done by means of two electrodes completely surrounded

by the

liquid. The electrodes must have definite dimensions and arranged locations.

During the measurement of Conductivity the anions and the cations undertake the necessary

transport of the Current.

In order to prevent the polarization, measuring is done by alternating Current.

The Temperature of the test solution may cause considerable error in this measurement, since,

a result of the rising Temperature, the activity of the ions increases, while the contents of

the ionic

concentration remains constant.

A reference Temperature of 20 °C was selected in order to compare various measurements.

The effects of varying Temperatures on Conductivity may be compensated by a RTD

immersed in

the test solution, connected to the meter.

Each solution has its own Temperature variation, therefore the automatic Temperature

compensation of our Conductivity meter is continuously variable in the range between 0.0 /

3.5

%/°C.

By means of this automatic Temperature compensation the measured value of Conductivity

which the solution has at 20 °C is indicated.

The meter supplies the measurement cell with the required alternating Current and shows the

measured value on the display. All indicating scales are linear, while the readings are

determined

by selecting the various measuring ranges and the various constants K of the

cells.

The adjustment of the cell constant value provides a correct reading of the Conductivity.

A 4-Electrode Conductivity System or an Electrodeless Conductivity System is suggested for

measuring range over 20 mSiemens.

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

3 SPECIFICATIONS

3.1

FUNCTIONAL SPECIFICATIONS

Additional functions of the software R2.1x

-Possibility to select the continuous or flashing alarm.

-Possibility to select the frequency of the flashing alarm. During the flashing cycle the

relay’s

activation is 50% of the duty cycle.

-Dual filter software for small or large signal.

Input

The unique characteristics of this instrument are:

-the automatic selection of the Frequency as a function of the scale

-the possibility to connect E.Conductivity cells for µS measuring range, preamplified

4-electrode or electrodeless cells for mS measuring range.

A second input is provided for 2 or 3 wires Pt100 RTD Temperature sensor.

Temperature compensation

The unit is supplied with Automatic or manual Temperature compensation and Temperature

information may be displayed on the LCD.

The instrument detects of the absence or malfunctioning of the Temperature sensor and

automatically switches to manual operation mode.

The choice of the Reference Temperature allows the operator to read on the display the

E.Conductivity value referred to a selected Temperature from 10°C to 99°C.

A special software allows the unit to store manually or automatically the

Conductivity/Temperature response table of the liquid, for an accurate Temperature

compensation.

Measuring ranges

Scales are selectable as function of cell K (see the table on the next page)

The autoranging function, when activated by user, selects the lower/higher scale, maintaining

the

set point and the output parameters.

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

Input from 2-electrode cell

Input from 080310 or 080315 microtransmitters

Indirect measuring

The unit provide a readout in % - gr/lt - Bé according to a conversion table manually stored

into

the microcomputer.

Analog output

Either a 0/20 mA or 4/20 mA isolated output may be selected, for use as an interface with

computers or data loggers.

The output Current may be set anywhere from 0 to full scale.

Control relays

The E. Conductivity monitor is equipped with two SPDT control relays.

Each control relay may be programmed for set-point, high/low, hysteresis or delay time

actuation. The full display indicates the current settings and current status of each relay.

Alarm relay

The unit contains a third SPDT relay designated as an alarm relay.

This relay may be used to warn of conditions that may indicate operational problems.

The

relay will activate on either high or low value conditions, or on failure of the control

relays to

maintain proper control.

In addition this relay may be programmed for either normal or fail-safe operation.

The alarm type can be selected continuous or flashing. The frequency of the flashing alarm

can

also be selected.

0.1

0.2

0.5

1.0

2.0

5.0

10.0

SCALES

.2000µS .4000µS 1.000µS 2.000µS 4.000µS 10.00µS 20.00µS

2.000µS 4.000µS 10.00µS 20.00µS 40.00µS 100.0µS 200.0µS

20.00µS 40.00µS 100.0µS 200.0µS 400.0µS 1000µS 2000µS

200.0µS 400.0µS 1000µS 2000µS 4000µS 10.00mS 20.00mS

2000µS 4000µS 10.00mS 20.00mS 40.00mS 100.0mS 200.0mS

0.1

0.2

0.5

1.0

2.0

5.0

10.0

SCALES .2000mS .4000mS 1.000mS 2.000mS 4.000mS 10.00mS 20.00mS

2.000mS 4.000mS 10.00mS 20.00mS 40.00mS 100.0mS 200.0mS

20.00mS 40.00mS 100.0mS 200.0mS 400.0mS 1000mS 2000mS

200.0mS 400.0mS 1000mS 2000mS 4000mS 10.00 S 20.00 S

2000mS 4000mS 10.00 S 20.00 S 40.00 S 100.0 S 200.0 S

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

Operating mode

The instrument is provided with 2 programmable modes of operations:

-Automatic operation

The Automatic mode is the normal operation mode of the unit.

-Manual operation

This mode of operation would normally be used for control system troubleshooting.

The

unit will allow the relays to be manually actuated by pushing up/down keys.

The letter "M" flashing on the display, indicates the instrument is in manual operation mode.

Software filter

The unit is provided with a dual programmable software filter, to be inserted when the

readout is

not stable. It is possible to select a different response time for small or large signal

variations.

Configuration

A number of programming functions are provided in the Configuration menu and are

protected by

a selectable access number, which must be entered to allow changes in this setting.

Keyboard lock

The keys on the front panel of the monitor can be used for both changing the display and

for

calibrations and set-point adjustments.

When the monitor is shipped, all functions are accessible.

However, the adjustment and calibration functions may be locked in order to prevent

unauthorized

adjustments to the instrument.

Options

The following options are available:

091.3713 Dual analog programmable and isolated output.

The operator may select an output for Temperature.

091.701 RS232 isolated output.

The output sends the data (E.C., °C) to the serial port of the computer.

091.404 24 VAC power supply

091.4143 9/36 VDC power supply.

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

3.2 PHYSICAL SPECIFICATIONS

The controller enclosure consists of an anodized aluminium case built according to DIN 43700,

with

a panel coated with a polycarbonate membrane.

A transparent (IP65) waterproof front door SZ 7601 can be added to the housing, in order to

protect

the unit from moisture or corrosive fumes.

Connections are made by two extractable terminal blocks.

This makes wiring and general maintenance.

The package is supplied with fixing clamps for panel-mounting.

3.3 TECHNICAL SPECIFICATIONS

The Default values are correspondent to the factory calibration values.

Parameters marked by "*" can be modified in the Configuration procedures.

Default values

CONDUCTIVITY

Input: from E.C Cell/Microt. 080310 /Microtr. 080315

2 electrodes cell

* Cell K: 0.1/0.2/0.5/1/2/5/10

Input scale:

080310 and 080315 microtransmitters

* Cell K: 0.1/0.2/0.5/1/2/5/10

Input scale:

Autoranging: On/Off

Software

filter 90% RT

LARGE signal variations: 0.4/20.0 s

SMALL signal variations: 0.4/20.0 s

Indirect measuring: ON/OFF

Indirect measuring unit: % g/l Bè

ATC Temperature reference: 10°/99°C

ATC: Table/Coefficient

Temperature coefficient: 0/5.00 %/°C

Sensitivity: 60/160 %

Zero adjustment: +/-

10%

Display resolution at 20°C: 1/1000

E.C.Cell

1.0/cm

2000µS

1.0/cm

2000mS

Off

2.0 s

10.0 s

OFF

20°C

Coeff

2.2%

100 %

0 %

OPERATING MODE

Automatic/Manual Auto

EC3020

CONDUCTIVITY CONTROLLER, MICROPROCESSOR BASED

_____________________________________________________________________________________________

TEMPERATURE

Input: RTD Pt100 2/3 wires

Measuring and compensation range: -10/+110 °C

Resolution: 0.1 °C

Zero adjustment: +/- 2°C

Manual Temperature compensation: -10/110°C

0°C

20°C

SET-POINT A/B

Set point value: 0/2000 (1000/4000)

Hysteresis: 0/20 (10/40)

Delay: 0.0/99.9 Sec.

* Function: H/L (Max/Min)

Relay contacts: SPDT 220V 5Amp. Resistive load

0 Sec.

ALARM (C-D contacts)

Low:0/2000(1000/4000)

High:0/2000(1000/4000)

Delay: 0.0/99.9 Sec.

Alarm on max. activation time of SA/SB: ON/OFF

Max. activation SA/SB: 0/60 minutes

Relay contacts: SPDT 220V 5Amp. Resistive load

Relay activation: ACT/DEA

Alarm type: CONT./FLASH

Alarm flashing frequency:

(approx. 0.3 Hz D.C. 50%)

ME (approx. 0.6 Hz D.C. 50%)

(approx. 1.2 Hz D.C. 50%)

2000

0 Sec.

OFF

60 min.

ACT

CONT.

ANALOG OUTPUT Nr. 1

Input related to the output (option 091.3713): EC/°C

Output range: 0-20/4-20 mA

Point corresponding to 0 or 4 mA: 0/2000 (1000/4000)

-10/110°C

Point corresponding to 20mA: 0/2000 (1000/4000)

-10/110°C

Response time: 2.5 Sec. for 98 %

Isolation: 250 Vca

Load: 600 Ohm max

E.C.

0/20 mA

-10.0°C

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