Dr. A. Kuntze K 100 PR User manual

Manual
K 100 PR
K 100 W PR
Measuringandcontrolinstruments
forpHand ORP measurements
7.02 pH 25.0°C
S1 S2 Auto
7.02 pH 25.0°C
S1 S2 Auto

Dr.A. Kuntze GmbH
Robert-Bosch-Str. 7a
D-40668 Meerbusch
Tel. [phone]
Fax [phone]
[email protected]
www.kuntze.com
Sales:
[email protected]
[phone]
Dr. A. Kuntze
Gutes Wasser mit System

3
K 100 PR & K 100 W PR
Contents
1. Your K 100 ..................................................................................................... 4
1.1GeneralandSafetyinstructions ...............................................................5
1.2Features...................................................................................................6
1.3Technicaldata ..........................................................................................7
1.4DeclarationofEGconformity....................................................................8
2. Instructions for installation and connections .............................................9
2.1Dimensions ............................................................................................ 10
2.2 Installation K 100 ................................................................................... 11
2.3 Installation K 100 W ............................................................................... 12
2.4ConnectiondiagramK100 PR ............................................................... 13
2.5 Connection diagram K 100 W PR........................................................... 14
3. Operation of the instrument....................................................................... 15
3.1Howtoadjustparameters....................................................................... 16
3.2Menuoverview ........................................................................................ 17
4. Password and language ............................................................................ 18
5. Adjustments for measurement .................................................................. 19
5.1 Calibration .............................................................................................. 20
5.2Temperaturecompensation .................................................................... 21
5.3ORPmeasurements............................................................................... 22
6. Adjustments of the controller .................................................................... 23
6.1ON/OFFcontroller.................................................................................. 24
6.2P / PI controller as impulse-frequency controller..................................... 25
6.3 P / PI controller as pulse-pause controller .............................................. 26
6.4Activationanddeactivationofthecontroller............................................. 27
6.5Turn-ondelay ......................................................................................... 27
6.6 External controller stop .......................................................................... 27
6.7Manualoperationoftherelays................................................................ 28
6.8LimitvaluesandAlarm ........................................................................... 29
7. Data output.................................................................................................. 30
7.1Currentoutput ........................................................................................ 30
7.2SerialinterfaceRS485(option) ............................................................... 30
8. Operation and maintenace........................................................................ 31
9. Service ........................................................................................................ 32
9.1Productinfo............................................................................................ 32
9.2Analoginputs ......................................................................................... 32
9.3 Erase settings (reset)............................................................................. 32
10.Errormessages ......................................................................................... 33
Index ............................................................................................................... 34

K 100 PR & K 100 W PR
4
1. Your K 100
is an instrument of Dr. A. Kuntze GmbH which offers you high quality and reliability for
years.
It is a member of our economy series K 100 with which we are trying to meet the rising
demand for lost cost / high end instrumentation.
The instruments K 100 are defined by an excellent pricing. They were developped to
maximize functionability for standard applications.
Operation requirements are reduced to an absolute minimum: For standard
electrodes no adjustments are required. The caibration solutions are automatically
recognised, regardless of the order in which they are used. After every single
calibration step the calibration curve is recalculated, so you can work with a 1-point
calibration, if you like.
For any non-standard application you can alter all parameters connected with
calibration: for restricted or outlying measuring ranges you can adjust the calibration
solutions as well as the zero-point of your measurement which is defined by the inner
buffer of the electrode.
All instruments K 100 have an integrated controller which provides bidirectional PI
control, via two relays or as a steady-state controller via the analog output. You can
define a turn-on delay to prevent wrong dosage after power failure and operate the
controller by remote control. Connect a level sensor, and the controller will shut down
automatically in case of lack of water.
Not to mention the alarm function with minimum and maximum limit and turn-on
delay...
You have certainly made a good choice. On the following pages you learn more about
your K 100. If, however, you have further questions or are looking for information not
included in this manual or if you are interested in supplementing products like
sensors or armatures or in our other instrument series, just give us a call - we will be
delighted to help you!

5
K 100 PR & K 100 W PR
1.1 General and Safety instructions
This manual applies to the following instruments:
Instrument and type revision date
K 100 PR 8/04
K 100 W PR 8/04
It contains technical information for the installation, start-up and maintenance. If you
have any questions not included in this manual please contact your supplier or the
official representative of Dr. A. Kuntze GmbH in your country.
We would like to point out that the warranties specified in our general trading
conditions are valid only if
- installation, connections, adjustments, start-up, and maintenance of the
instrument are carried out by authorized personnel with adequate qualification.
- the instrument is used according to the description in this manual.
Please check for damages immediately after receiving the instruments and report any
damages within 24 hours to the delivering company. Never work with a damaged
instrument.
Keep this manual at a safe place where you can always look up the safety instructions
and the informations on handling and usage.
This instrument was designed and built according to the safety measurements for
electronic devices and has left our company in perfect working condition. To preserve
this condition and to ensure safe usage follow all instructions carefully and pay special
attention to all warnings issued in this manual. If the instrument is visibly damaged or
has been stored inappropriately or if there are any doubts concerning safe usage, shut
it down and make sure it cannot be restarted by accident.
You will notice that important safety instructions are highlighted:
WARNING highlights instructions for the protection of people. Disregarding these
instructions may cause accidents and injuries!
ATTENTION higlights instructions for the protection of the instrument and the
equipment. Disregarding these instructions may lead to damage or
destruction of the instrument or equipment!
NOTE is used to highlight interesting details.
1.1GeneralandSafetyinstructions

K 100 PR & K 100 W PR
6
1.2 Features
Meter
Measuring ranges 0.00 - 14.00 pH
-1500 - 1500 mV
-30.0 - 140.0 °C
Display Measured value with dimension
Temperature with dimension
Status display sensor, calibration, controller & alarm
Temperature compensation manual or automatic with Pt100
Calibration automatic recognition of the calibration solutions
in arbitrary order
Controller
Set points 2 set points with adjustable direction
Controller types ON/OFF controller with hysteresis
P controller as Pulse-Pause-, Impulse-Frequency- or steady controller
PI controller as Pulse-Pause-, Impulse-Frequency- or steady controller
Hysteresis 0.00 - 14.00 pH
P range XP0.00 - 14.00 pH
Integral time TN0 - 2000 sec.
Least pulse 0.1 - 9.9 sec.
Pulse+Pause time 02 - 99 sec.
Impulse frequency 100 - 7200 pulses/h
Turn-on delay 0 - 200 sec.
Alarm function min. and max. limit and onset delay
Connections
Relays 3 potential-free contacts (2x controller, 1x alarm)
6A, 250 V, max. 550 VA
Analog output 0/4-20 mA galvanically isolated
max. loading 500 Ohm
Analog inputs 1 measuring input for pH or ORP
1 measuring input for temperature sensor Pt100
Digital input external controller stop or lack-of-water indication
Serial interface RS485, Baud rate 9600, data formate 8Bit,
(Option) 1start and 1stop bit, no parity
1.2Features

7
K 100 PR & K 100 W PR
1.3 Technical data
Feature K 100 K 100 W
View
Installation
Dimensions
Weight
Terminals
Protection class
Power supply
Internal fuse
Power consumption
Display
Current output
Interface (option)
Controller
Set points
Alarm function
Contact rating
Operation temperature
Storage temperature
Humidity
panel-type meter
96 x 96 x 127 mm
(W x H x D)
0.8 kg
screw terminals
max. 1.5 mm2
Front IP54, with front door IP55
230 V +6/-10%, 50/60 Hz alternatively 110 V or 24 V
230 V: 63 mA slow
none 110 V: 125 mA slow
24 V: 800 mA semi-slow
10VA
LCD, 2-line, 2x16 characters, illuminated background
measured value and temperature with dimensions
indication of relay status
0/4-20 mA, galvanically isolated, max. loading 500 Ohm
RS485, Baud rate 9600, Data formate 8Bit, 1 Start and 1 Stop bit
ON/OFF controller with hysteresis, P or PI controller as Pulse-
Pause- or Impulse-frequency controller, steady controller,
bidirectional PI control action, adjustable onset-delay,
manual operation of the relays, controller stop via
external switch or level sensor (lack-of-water sensor)
2 set points adjustable within the measuring range
with min. and max. limit and turn-on delay
6A/ 250 V, max. 550 VA resistive load (with RC protective circuit)
0 - 50°C
-20 - 65°C
max. 90% at 40°C non-condensing
wall-mounting enclosure
165 x 160 x 80 mm
(W x H x D)
1.0 kg
spring terminals
max. 1.5 mm2
IP65
1.3Technical data

K 100 PR & K 100 W PR
8
Dr. A. Kuntze
Gutes Wasser mit System
1.4DeclarationofEGconformity
1.4 Declaration of EG conformity
according to EG direction 89/336/EWG
Regulationsconcerningtheelectromagneticcompatibility,so-calledEMClaw
The label „CE“ according to the direction 89/336/EWG of the council of the European
Union issued on April 29, 1991 to unify the individual regulations of the participating
nations is awarded to the measurement and control instrument series
K 100
When used and operated in accordance with this manual it guarantees
electromagnetic compatibility according the the following standard specifications
Suppression of interference
accord. to EN 50 081 part 1 - domestic area
Electromagnetic compatibility Standard specification Interference emittance
Interference immuninty
accord. to EN 50 082 part 2 - industrial area
Electromagnetic compatibility Standard specification Interference immunity
and
Protection measurements accord. to IEC 364-4-41: 1992
Düsseldorf, 14 May 2002
..........................................
ppa Dipl.-Ing. C. Scheffold
Head of the development department

9
K 100 PR & K 100 W PR
2. Instructions for installation and
connections
Installation:
On the next pages you will find detailed instructions for the installation.
For panel-type meters you have to prepare an opening of 92x92mm. Install the
instrument and fix it with the two mounting clips which were part of the delivery.
You can install instruments in wall-mounting enclosures either by hanging them upon
the center slot or by sliding the slot under a screw, which is an alternative for limited
space. Either way you have to fix it additionally with two screws.
ATTENTION Install the instrument in a place where it is not put under mechanical
or chemical strain!
Mind the protection class:
K 100: Front IP54, with front door IP55
K 100 W: IP65 (closed terminal cover)
Connections:
You will find detailed connection diagrams on the following pages.
Before connecting the power supply check the information on the instrument label!
ATTENTION Input, output and control lines must be installed separate from each
other and separate from power lines!
For inputs and outputs use screened lines and connect the screen on one side only.
The pH measurement is interference-sensitive. Use a special screened cable and
over long distances or in humid atmosphere additionally an impedance converter.
For the connection of the temperature sensor Pt100 use a low-resistance cable with a
large diameter.
When using the relays, mind that with inductive loads, interference must be
suppressed. If that is not possible, the relay must be protected at the terminal block in
the K 100 by a resistance-capacitance filter or, in case of direct current, by a free-
wheeling diode.
Current up to Capacitor C Resistance R
60 mA 10 nF 260 V 390 Ohm 2 Watt
70 mA 47 nF 260 V 22 Ohm 2 Watt
150 mA 100 nF 260 V 47 Ohm 2 Watt
1,0A 220 nF 260 V 47 Ohm 2 Watt
R
C
2.Instructionsforinstallationandconnections

K 100 PR & K 100 W PR
10
2.1 Dimensions
K 100 W
K 100
Option:Front door
2.1Dimensions

11
K 100 PR & K 100 W PR
2.2 Installation K 100
Install the
instrument from
the front side
and fix it with the
two mounting
clips which were
part of the
delivery.
Screw tight until
the instrument is
fixedperfectly.
Prepare an
opening of
92 x 92 mm.
2.2 Installation K 100

K 100 PR & K 100 W PR
12
2.3 Installation K 100 W
Drill three holes (max. M5)
according to the drawing.
Mind that there are two
ways for installation: (1) You
can hang the instrument
upon the upper screw. In
that case drill the upper
hole 120mm above the
lower two. (2) Or you can
slip the fixture on the back
of the instrument under the
upper screw. In that case
the upper hole has to be
another 15mm higher.
Insert the upper screw and
make sure to leave at least
3 mm between wall and
screw head for the fixture.
Unscrew the
terminal cover.
Mount the instrument and
fix it with the two lower
screws. Close the terminal
cover or start with the
connections.
2.3 Installation K 100 W

13
K 100 PR & K 100 W PR
2.4 Connection diagram K 100 PR
Connection Terminals Notes
pH electrode 1 + 2 1 = Reference electrode = screen
2 = Measuring electrode = core
ORP electrode 1 + 2 1 = Measuring electrode = core
2 = reference electrode = screen
Impedance converter 1 - 4 Measurement = brown & white
1 = brown, 2 = white
Supplied voltage = yellow & green
3 = yellow = -6V, 4 = green = +6V
Pt100 5 + 6
Analog output 9 + 10 9 = +, 10 = -, max. loading 500 Ohm
Digital input 11 + 12 11 = +, 12 = -, external controller stop
or lack-of-water indication
Relay 1 14 + 15
Relay 2 16 + 17
Relay 3 18 + 19 Alarm relay
Power supply 21 + 22 + 23 Check information on the instrument label!
RS485 (Option) Sub-D 3 = +, 8 = -
Sub-D 4/7 bridged = terminating impedance activated
PE
Sensor
Pt100
0/4-20 mA
Dig. IN
Rel 1
Rel 2
Rel 3
L
N
1
2
3
4
5
6
7
8
9 +
10 -
11 +
12 -
13
14
5
4
3
2
1
9
8
7
6
RS 485
-+
15
16
17
18
19
20
21
22
23
24
25
26
2.4ConnectiondiagramK100PR

K 100 PR & K 100 W PR
14
2.5 Connection diagram K 100 W PR
Connection Terminals Notes
pH electrode 1 + 2 1 = reference electrode = screen
2 = measuring electrode = core
ORP electrode 1 + 2 1 = measuring electrode = core
2 = reference electrode = screen
Impedance converter 1 - 4 Measurement = brown & white
1 = brown, 2 = white
Supplied voltage = yellow & green
3 = yellow = -6V, 4 = green = +6V
Pt100 6 + 7
Display contrast Display Potentiometer to adjust the display contrast
Analog output 11 + 12 11 = +, 12 = -, maximum loading 500 Ohm
Relay 1 14 + 15
Relay 2 16 + 17
Relay 3 18 + 19 Alarm relay
Spannungsversorgung 20 + 21 + 22 Check information on the instrument label!
RS485 (Option) 23 + 24 23 = -, 24 = +
Jumper A bridged = terminating impedance activated
Digital input 26 + 27 26 = +, 27 = -, external controller stop
or lack-of water indication
1 2 3 4 5 6 7 10 11 12 13 14 15 16 17 18 19 20 21 22
23 24 25 26 27 28
Sensor Pt100 0/4-20 mA Rel. 1 Rel. 2 Rel. 3 L N PE
RS 485 Dig. IN
A
Display
- + + -
+ -
2.5 Connection diagram K 100 W PR

15
K 100 PR & K 100 W PR
3. Operation of the instrument
1 2 3 4 5 6
6.99 pH 25.0°C


S1

S2 Man


7 8 9 10 11
1 Measured value
2 Status relay 1
3 Status relay 2
relay OFF
 relay ON
4 Temperature
5 Controller
AUTO: controller ON
MAN : controller OFF
(manual operation
of the relays)
6 Orientation aids
7 Key left ()
8 Key up ()
9 Key down ()
10 Key right ()
When turned on the instrument shows the measured values of pH or ORP and
temperature together with the controller mode (Man) and the status of the relays S1
and S2 (both OFF).
With five membrane keys you can move within the menu:
With key you enter the main menu.
With keys and you move up and down in the menu.
With key you adress a menu or parameter.
With key you leave a menu or store a change.
For your convenience triangles in the display indicate the directions you can take from
your position in the menu.
With key „M“ you get back to the display of the measured values from any point in the
menu. Changes that have not been stored will be lost.
NOTE The instruments K 100 PR and K 100 W PR differ only in the
enclosures. Operation and menus are the same.
3.Operationoftheinstrument

K 100 PR & K 100 W PR
16
3.1 How to adjust parameters
Temp. Comp.
Manual
Temp. Comp.
Auto
Temp. Comp.
Manual
1) When you adress a parameter the actual setting is
displayed.
2) Switch to the next alternative setting with key.
3) When you have come to the last alternative, pressing the
key once more will bring you back to the start.
Selection between alternatives
For many parameters you have the choice between two or more alternatives, for e. g.
between manual and automatic temperature compensation. For these parameters
you need only key. Switch from one alternative to the next until you either come back
to where you started or until you reach the alternative you were looking for.
With these parameters any changes are immediately valid - there is no need to store
the change.
Enter password
 058
Enter password
058
Enter password
 062


1) Adress the parameter with key.
2) A double triangle appears behind the number indicating
that the number can be changed now with keysand .
3) Store the new value with key. The double triangle
disappears - the new value is stored.
Adjustment of numerical parameters
Numerical parameters can only be altered when a double triangle is visible behind the
number. This double triangle appears when you adress the parameter with key.
Adjust the parameter with keys and . A short pressure on the key changes the last
decimal by 1. If you keep the key pressed, the value will continue changing until the
pressure is released.
Store the changes with key. The double triangle disappears.
NOTE If you do not want to store the change, press key „M“ instead of
key

.
3.1Howtoadjustparameters

17
K 100 PR & K 100 W PR
Calibrate
Temp. comp.
Enter password
Set points
Limit values
Basic settings
Service
3.2 Menu overview
6.98 pH 25.0°C
S1S2 Auto

Main menu
Display of the measured values
Press key to enter the main menu.
Calibration function (only for pH measurements)
Temperature compensation (only for pH measurements)
Password function
Controller settings - set points, P ranges, I functions
Alarm function
Cal. Pt100
Buffers used
Contr. settings
Turn-on delay
Analog output
Language
Bus adress
pH / ORP
Basic settings
All parameters which are set
just once at the beginning
can be found in the menu
„basic settings“
Main menu and basic settings
The parameters are sorted into two menus: In the main menu you will find all functions
which are used regularly, such as calibration. The menu basic settings contains all
parameters which are set just once during start-up.
On the following pages you will find information on how to adjust parameters and
which parameters you need for which application. The information follows the
following scheme:
1) General adjustments: password and language
2) Adjustments for measurement: calibration and temperature compensation for
pH or selection of ORP measurement
3) Adjustments of the controller: selection of the controller version and
corresponding parameters
4) Adjustments to read out data: analog, digitally and/or as alarm
3.2Menuoverview

K 100 PR & K 100 W PR
18
.
.
Basic settings .
.
Language
4. Password and language
Enter Password
056
Enter password
To get access to the various parameters you have to enter the correct password:
Code 11 gives access to the parameters „calibration“, „temperature
compensation“, and „set points“.
Code 86 gives access to all parameters and functions.
With any other number it is impossible to select, view or change any parameter.
Main menu

Basic settings
We speak
english
Language
Language
For the communication with the instrument you can choose from a variety of
languages.
Since choosing a language is part of the basic settings, it requires code 86. If a
different code is set, you will be asked to enter the correct password.

.
.
Enter Password 
4.Passwordandlanguage
Main menu

19
K 100 PR & K 100 W PR
Cal. Pt100
Buffers used
.
.
pH / ORP
Calibrate
Temp. Comp.
.
.
.
Basic settings
5. Adjustments for measurement
Main menu
Calibration of the pH measurement, display of slope and zero-point.
Selection of manual or automatic temperature compensation, adjustment of
temperature for manual compensation.
Basic settings
Calibration of the temperature measurement
Adjustment of the calibration solutions and the inner
buffer of the electrode.

Selection between pH and ORP measurement.
The instruments K 100 PR and K 100 W PR can be used for pH or ORP
measurements.
pH measurement
pH measurement requires a calibration.
By means of calibration the electrode´s characteristics are determined and stored. The
procedure is a subsequent measurement of two solutions with a known pH. The pH
values of the buffers used asd calibration solutions are stored in the menu basic
settings.
You have to adjust the calibration data only if you want to use special calibration
solutions or electrodes with a special buffer solution.
The electrode´s slope is influenced by temperature. This influence can be
compensated by manual or automatic compensation. Manual compensation means
that the temperature is entered manually. Automatic compensation requires
measuring the temperature with a Pt100.
ORP measurement
At works the instruments are set for pH measurement. For ORP measurements you
have to switch to ORP measurement.
This is the only adjustment. ORP measurements do not require calibration or
temperature compensation. Therefor the parameters „calibration“ and „temperature
compensation“ do not appear in the menu if ORP measurement has been selected.
5.Adjustmentsformeasurement

K 100 PR & K 100 W PR
20
.
Buffers used
Calibrate
.
.
.
.
Basic settings
5.1 Calibration
Main menu
Basic settings

Meas. val. 6.99pH
Cal. press&
Slope
058 mV/pH
Sensor zero
001 mV
Calibrate
Buffer 1
7.00 pH
Buffer 2
4.00 pH
Sensor buffer
7.00 pH
Buffers used
Calibration procedure
1) Switch the controller OFF and select manual temperature compensation. Enter
the temperature of the calibration solutions.
2) Immerse the electrode in one of the calibration solutions. Wait until the
measured value is stable, then calibrate by pressing keysand - while still
applying pressure - additionally key . The pH of the calibration solution is
now displayed as measured value.
3) Rinse the electrode and repeat step 2 with the second calibration solution.
4) Check the slope and sensor zero-point, then put the electrode back into the
armature. Select automatic temperature compensation and switch ON the
controller.
NOTE The slope should be close to 59 mV, the zero-point close to 0 mV. The
slope decreases and the zero error increases with time. When either
value exceeds certain limits, the instrument displays an error
message indicating that the electrode has to be replaced.
Buffers
At works the following buffers are stored:
Calibration solutions: buffer solutions pH 4 and pH 7
Inner buffer of the electrode: pH 7
If you want to use other calibration solutions, adjust the values - it does not matter if
you start with the higher or the lower pH.
If you are using electrodes with a special inner buffer, adjust the pH value of the sensor
buffer, since this value is used as zero for the calculation of the measured values. You
will find the pH of the sensor buffer printed on the electrode.
The calibration solutions stored as
„buffers used“ are recognised
automatically. It does not matter whether
you start with buffer 1 or 2.
5.1Calibration