Kobold APM-1 User manual

APM-1
Transmitter/controller for pH, redox,
NH 3, temperature and standard signals
Operation Instructions
K03/1216

WARNING:
A sudden malfunction of the instrument, or one of the sensors connected to it,
could potentially result in dangerous, overdosing! Suitable preventive measures
must be in place to prevent this from happening.
Note:
Please read these Operating Instructions before placing the instrument in
operation. Keep the manual in a place which is accessible to all users at all times.
Resetting the brightness of the LC display:
If the brightness setting has been adjusted so that the display text is no longer
legible, the basic setting can be restored as follows:
✱Switch off the supply voltage.
✱Switch on the supply voltage and immediately press and hold the and
keys simultaneously.
To set the operator language:
✱Press the key for longer than 3 seconds.
✱Select the appropriate language with the and keys.
✱Briefly press the key.
EXIT
PGM

Content
1 Typographical conventions ...................................................... 8
1.1 Warning signs ..............................................................................................8
1.2 Reference signs ...........................................................................................8
2 Description ................................................................................ 9
3 Instrument identification ........................................................ 11
3.1 Nameplate ..................................................................................................11
3.2Type designation ........................................................................................12
3.3 Accessories (included in delivery) ..............................................................13
3.4 Accessories (optional) ................................................................................13
4 Assembly ................................................................................. 14
4.1 General .......................................................................................................14
4.2 Dimensions ................................................................................................14
5 Installation ............................................................................... 15
5.1 Installation instructions ..............................................................................15
5.2 Electrical isolation ......................................................................................16
5.3 Connection .................................................................................................17
6 Operation ................................................................................. 21
6.1 Controls ......................................................................................................21
6.2 Display .......................................................................................................22
6.3 Principle of operation .................................................................................23
6.4 Measuring mode ........................................................................................26
6.5 Input/output information ............................................................................27
6.6 User level ...................................................................................................32
6.7 Administrator level .....................................................................................33
6.8 MANUAL mode / Simulation mode ............................................................35
6.9 HOLD mode ...............................................................................................37
7 Commissioning ....................................................................... 40
7.1 Getting started ...........................................................................................40
7.2 Setting examples .......................................................................................41
8 Calibrating a pH measurement chain ................................... 46
8.1 Notes ..........................................................................................................46
8.2 General information ....................................................................................46
8.3 Zero point (1-point) calibration ...................................................................48
8.4 2-point calibration ......................................................................................49

Content
8.5 3-point calibration ......................................................................................51
8.6 pH Antimony measurement chain ..............................................................54
8.7 ISFET pH combination electrodes .............................................................54
9 Calibrating a redox measurement chain .............................. 55
9.1 Notes ..........................................................................................................55
9.2 General information ....................................................................................55
9.3 Zero-point calibration (one-point offset calibration) ..................................57
9.4 2-point calibration ......................................................................................58
10 Calibrating an ammonia measuring cell ............................... 60
10.1 Notes ..........................................................................................................60
10.2 General information ....................................................................................60
10.3 Zero point (1-point) calibration ...................................................................61
11 Calibrating a sensor with a standard signal ......................... 63
11.1 General information ....................................................................................63
11.2 Linear operating mode ...............................................................................65
11.3 pH operating mode ....................................................................................69
11.4 Conductivity operating mode .....................................................................70
11.5 Concentration operating mode ..................................................................76
11.6 Chlorine measurement operating mode, pH-compensated ......................77
12 Calibration logbook ................................................................ 79
12.1 General information ....................................................................................79
13 Controller ................................................................................. 81
13.1 General information ....................................................................................81
13.2 Controller functions ....................................................................................81
13.3 Software controllers and outputs ...............................................................82
13.4 Configuration of higher order controllers ...................................................84
13.5 Parameter sets ...........................................................................................84
13.6 Sample configurations ...............................................................................85
14 Setup program ........................................................................ 88
14.1 Configurable parameters ...........................................................................88
14.2 Documenting the instrument configuration ................................................89
14.3 Special features for "Datalogger" ..............................................................90
15 Eliminating errors and faults .................................................. 92

Content
16 Technical data ......................................................................... 94
17.1Identifying an optional board .....................................................................97
17.2Removing a plug-in module .......................................................................99
17.3Inserting a plug-in module .........................................................................99
17.4Retrofitting optional boards (field housing) ..............................................100
17 Retrofitting optional boards ................................................... 97
18 Appendix ................................................................................102
18.1Glossary ...................................................................................................102
18.2Parameters of the User level ....................................................................112
19 EU Declaration of Conformance .......................................... 123

6
Index
1-point calibration - ammonia 61
1-point calibration - pH 48
2-point calibration102
2-point calibration - pH 49
3-point calibration - pH 51
3-point calibration .103
A
Accessories 13
Administrator 33
Asymmetrical connection109–111
B
Basic setting 33
Binary inputs and outputs
States 30
C
Calibration
Ammonia, 1-point 61
Ammonia, zero point 61
Antimony 54
ISFET 54
Logbook 79
pH ISFET 54
pH, 2-point 49
pH, antimony 54
Redox, one-point 57
Redox, zero-point 57
Standard signal 63
Standard signal, options 64
Calibration release 35
Configurable parameters 88
Controller
"Higher order" switching functions 81
"Simple" switching functions 81
General information 81
Parameter sets 84
Controller functions 81
Controllers
Configuration of "higher order" controllers
84
Setting example, limit monitoring 85
Setting example, pulse length output 86
Customer settings 112
D
Datalogger
Special features 90
Date of manufacture 11
Delete 35
Display 22
E
Electrical isolation 16
F
Factory settings 112
G
Getting started 40
H
HOLD mode 37
I
Info
Device 32
Hardware 31
Installation position 14
ISFET sensor111
K
Key combinations 27
L
Limit functions103
M
Manual 31
MANUAL mode 35
Analog outputs 37
Binary outputs 37
Controller 36
Deactivation 39
Switching outputs 36
Manual mode overview 31
Menu
Customized 28
Min/max values 28–29
Mounting location 14

7
O
Ooutput 29
Optional inputs
Current values 30
Output level display 29
P
Parameter overview112
Password 33
Principle 23
Principle of operation 27
R
Rapid access 27
Reference signs 8
S
Setting example
pH difference measurement 43
pH measurement 41
Setup program 88
Simulation mode 35
Simulation of binary outputs 37
States 30
Sunlight 14
T
Temperature compensation109
U
User 32
User data 28
W
Warning signs 8
Wash timer 111
Washing contact111
Z
Zero point calibration 102

8
1 Typographical conventions
1.1 Warning signs
1.2 Reference signs
Danger
This symbol is used when there may be danger to personnel if the
instructions are ignored or not followed correctly!
Caution
This symbol is used when there may be damage to equipment or data if the
instructions are ignored or not followed correctly!
Note
This symbol is used to draw your special attention to a remark.
abc1Footnote
Footnotes are remarks that refer to specific points in the text. Footnotes
consist of two parts:
A marker in the text and the footnote text.
The markers in the text are arranged as consecutive superscript numbers.
✱Instruction
This symbol indicates the description of an action to be performed.
The individual steps are marked by this asterisk.
Example:
✱Briefly press the key.

9
2 Description
Inputs/outputs In addition to the main input (pH/redox) and the secondary input (temperature
compensation), the basic instrument alone has two binary inputs, two relays,
one power supply for external sensors and a setup interface.
Input signals can be shown as numbers or as a bar graph on the graphic
display. Parameters are displayed in plain text for easily comprehensible and
reliable operation.
Optional Three further slots can be fitted with extensive additional configurable inputs
and outputs and interfaces.
Application The instrument is suitable, for example, for displaying, measuring and
controlling:
- pH value and/or redox potential.
- Free chlorine, chlorine dioxide, ozone, hydrogen peroxide and peracetic
acid, in combination with suitable sensors.
-(Hydrostatic) liquid levels with 2-wiretransmitters (level probes).
-Flow rate in conjunction with transmitters.
- Two temperature measuring points.
- Most sensors and transmitters that output standard signals (0 - 10 V or 
0(4) - 20 mA).
Because temperature measurement is integrated, temperature compensation
takes place quickly and precisely, which is particularly important for many
analytical measurements.
Key features - Display: mg/l, pH, mV, μS/cm, etc. Special settings are also possible with
the setup program
- Configurable display text (operator level)
- Alarm text with color change
Power supply
Optionalboard 2
Optionalboard 1
Optionalboard 3
2 binary inputs
1 main input
(pH, redox, ammonia)
1 analog input
(compensation)
Setup interface
2 relays (changeover)
Power supply
for a 2-wire transmitter

2 Description
10
- A choice of display visualizations: large numbers, bar graph or tendency
(trend) display
- Four limit controllers
- Integrated calibration routines: with 1, 2 and 3 points
- Math and logic module (optional)
- Calibration logbook
- Three optional slots
- Selectable languages: English, German, French, etc.
- Setup program provides: convenient programming, system documentation
- RS422/485 interface (optional)
- PROFIBUS-DP interface (optional)

11
3 Instrument identification
3.1 Nameplate
on the transmitter
The date of manufacture is encoded in the "F No." (serial number):
1122 means year of manufacture 2011 / calendar week 22
F-Nr.: 0168286101012190001
VARTN: 20/00574306
AC 110..240V -15/+10% 48..63Hz
≤13VA
F-Nr.: 0168286101012190001
VARTN: 20/00574306
AC 110..240V -15/+10%
48..63Hz
≤13VA
APM-1E14000

3 Instrument identification
12
..
Model Version Housing Power supply Option 1
(Optional board)
Option 2
(Optional board)
Option 3
(Optional board) Special
APM
Evaluation
electronics
pH/redox
1= Compact-Line
(new)
Input:
1x pH/redox,
1x temperature/
standard signal,
2x binary input
sensor supply:
2-wire
transmitter,
2 relays
E= for panel
mounting
F= Field
housing
S= Field
housing
with wall
mounting
bracket
R= Field
housing
with pipe
mounting
bracket
1= 110... 240 VAC
-15%/+10%,
48 ... 63 Hz
2= 20 ... 30 VAC/DC,
48 ... 63 Hz
4= analogue output
0(4)-20 mA,
0(2)-10 V
(Standard)
0= without
1= universal input
(resistance,
current, voltage)
2= 1 relay
(changeover
contact)
3= 2 relays
(NO with
common pin)
5= 2 Photo-Mos
relay switch
(0.2 A)
6= 1 semiconductor
relay TRIAC (1A)
7= 1 power supply
4.85 V (e. g. for
ISFET sensor)
8= 1 power supply
12 VDC (e. g. for
inductive
proximity switch)
0= without
1= universal input
(resistance,
current, voltage)
2= 1 relay
(changeover
contact)
4= analogue
output
0(4)-20 mA,
0(2)-10 V
5= 2 Photo-Mos
relay switch
(0.2 A)
6= 1 semiconductor
relay TRIAC (1A)
7= 1 power supply
4.85 V (e. g. for
ISFET sensor)
8= 1 power supply
12 VDC (e. g. for
inductive
proximity switch)
0= without
1= universal input
(resistance,
current, voltage)
2= 1 relay
(changeover
contact)
3= 2 Relais
(NO with
common pin)
4= analogue
output
0(4)-20 mA,
0(2)-10 V
5= 2 Photo-Mos
relay switch
(0.2 A)
6= 1 semiconductor
relay TRIAC (1A)
7= 1 power supply
4.85 V (e. g. for
ISFET sensor)
8= 1 power supply
12 VDC (e. g. for
inductive
proximity switch)
S= Interface
RS 422/485
D= Data logger with
interface
RS 4851)
P= Interface
Profibus DP
0= without
(factory set)
Y= adjusted
according
to
customer
specification
Order Details (Example: APM-1 E 1 0 0 0 Y)
1) The readout of data is only possible with the PC setup software! Note: All languages are available in the device menu and can be changed by the customer at
any time. The factory default setting of a language (except for "German") entail additional costs.
3.2 Type designation

13
3 Instrument identification
3.3 Accessories (included in delivery)
1For basic type extension 01 only (in the panel enclosure)
2For basic type extension 05 only (in the surface-mounted enclosure)
3.4 Accessories (optional)
4 x fastening elements, complete1
3 x CON plug-in link1
3 x jumper wire2
1 x seal for panel1
1 x fastening elements, complete2
- 1 x DIN rail fastening left
- 1 x DIN rail fastening right
- 3 x wall mount
- 3 x fastening screw
Type Sales No.
Holder for C railACM-Halt
PC setup softwareACM-Soft
PC interface cable including USB/TTL converter and two adapters 
(USB connecting cable)
ACM-Int
Optional board Code Sales No.
Analog input (universal)1APM-1000001
Relay (1 x changeover)2APM-1000002
Relay (2 x NO)3APM-1000003
Analog output4APM-1000004
Two MosFET semiconductor switches5APM-1000005
Semiconductor relay 1 A6APM-1000006
Supply voltage output +/- 5 V DC (e.g.for ISFET)7APM-1000007
Supply voltage output 12 V DC (e.g. for inductive proximity switch)8APM-1000008
Interface - RS422/48510APM-100000S
Datalogger with RS485 interface11APM-100000D
Profibus-DP interface12APM-100000P

14
4 Assembly
4.1 General
Mounting
location
Find a location that ensures easy accessibility for the later calibration.
The fastening must be secure and must ensure low vibration for the
instrument.
Avoid direct sunlight!
Permissible ambient temperature at the installation location: -10 - 55°C with
max. 95% rel. humidity, no condensation.
Installation
position
The instrument can be mounted in any position.
4.2 Dimensions
Close mounting
Minimum spacing of panel cutouts Horizontal Vertical
Without setup connector: 30mm 11mm
With setup connector (see arrow): 65mm 11mm
4.2.1Panel mounting
72,5
94, 5
10 4 , 5
62
15
13 7 117
APM-1
EXIT
PGM

4.2.2Field housing

15
5 Installation
5.1 Installation instructions
❏The choice of cable, the installation and the electrical connection must
conform to the requirements of VDE 0100 “Regulations on the Installation
of Power Circuits with Nominal Voltages below 1000 V” and the relevant
local regulations
❏If contact with live parts is possible when working on the device, it must be
completely disconnected from the electrical supply.
❏The load circuits must be fused for the maximum load currents in each case
to prevent the relay contacts from becoming welded in the event of a short
circuit.
❏Electromagnetic compatibility meets the requirements of EN 61326.
❏Lay the input, output, and supply lines so they are physically separated
from each other and are not parallel.
❏Use twisted and shielded probe cables. If possible, do not lay these cables
close to components or cables through which current is flowing. Ground
the shielding at one end.
❏The probe cables must have an uninterrupted run (do not route them via 
terminal blocks or similar arrangements).
❏No other consumers can be connected to the power terminals of the
instrument.
❏The instrument is not suitable for installation in areas with an explosion
hazard.
❏Apart from faulty installation, incorrect settings on the instrument may also
affect the proper functioning of the subsequent process or lead to damage.
You should therefore always provide safety equipment that is independent
of the instrument and it should only be possible for qualified personnel to
make settings.
Mounting information for conductor cross-sections and ferrules
The electrical connection must only be performed by 
qualified personnel!
Ferrule Conductor cross-section Minimum length of ferrule or
stripping
Min imum M axi m um
Without ferrule 0.34mm2.2.5mm
2. 10mm (stripping)
Without collar 0.25mm 2.5mm2. 10mm
With collar up to 1.5mm² 0.25mm2.1.5mm
2. 10mm
Twin, with collar 0.25mm2.1.5mm
2. 12mm

5 Installation
16
5.2 Electrical isolation
3700 V AC
1
Setup interface
Power supply
Power supply
for a 2-wire transmitter
3700 V AC
semiconductor relay
Triac
Binary inputs
30 V AC
50 V DC
Continuous outputs
30 V AC
50 V DC
Input 2 (option)
3700 V AC
Relay outputs
Secondary input (Pt100/Pt1000)
Main input pH, redox
30 V AC
50 V DC
Foto-MOS relay
Extra-low voltage
1500 V AC
30 V AC
50 V DC
interface
RS422 7 485
Profibus DP
Datalogger
Power supply
for ISFET sensor

17
5 Installation
5.3 Connection
5.3.1 Terminal assignment
5.3.2 Optional board (row 1, slot a, b or c)
(1) Row 1 (a) Option 1 (b) Option 2 (c) Option 3
(2) Row 2 Main input board 
(pH / redox / temperature / standard signal)
(3) Row 3 PSU board 
(power supply / 2x relays)
1
2
3
4
1 2 3 4
5 6 7 8
6 7 8 9
10
9
10 11 12
4
L1(L+)
5
6
8
9
11
12
13
15
16
17
N(L+)
11
12
13
14
15
(a)
(b)(c)
(1)
(3)
(2)
Function Symbol Terminal
for slot (a)
Te r m i n a l
for slot (b)
Termi n al
for slot (c)
Analog input
Temperature sensor 
in a two-wire circuit
Pt100 or Pt1000
2
4
6
8
10
12
Temperature sensor 
in a three-wire circuit
Pt100 or Pt1000
2
3
4
6
7
8
10
11
12
Resistance transmitter 2
3
4
6
7
8
10
11
12
Electrical current 3
4
7
8
11
12
J
J
E
S
A
+
-

5 Installation
18
Function Symbol Terminal
for slot (a)
Te r m i n a l
for slot (b)
Termi n al
for slot (c)
Voltage
0(2) - 10 V
1
2
5
6
9
10
Voltage
0 - 1 V
2
3
6
7
10
11
Continuous output
Current or voltage 2
3
6
7
10
11
Modbus interface
RS422 1
2
3
4
5
6
7
8
9
10
11
12
RS485 3
4
7
8
11
12
Profibus interface
1
2
3
4
5
6
7
8
9
10
11
12
Data logger interface
RS485 2
3
6
7
10
11
Relay (1x changeover)
K3 1
2
3
K4 5
6
7
K5 9
10
11
Relay (2x NO, common pin)
K3 1
2
K6 3
K5 9
10
K8 11
Triac (1 A)
K3 2
3
K4 6
7
K5 10
11
Foto-MOS relay (0.2 A)
K3 1
2
K4 5
6
K5 9
10
K6 3
4
K7 7
8
K8 11
12
+
-
+
-
+
-
RxD-
RxD+
TxD-
TxD+
RxD/TxD-
RxD/TxD+
RxD/TxD-P(B)
VP(+5V)
DGND
RxD/TxD-N(A)
RxD/TxD-
RxD/TxD+
S
P
O
S
P
S

19
5 Installation
5.3.3 Main board (row 2)
Function Symbol Terminal
for slot (a)
Te r m i n a l
for slot (b)
Termi n al
for slot (c)
Power supply for ISFET sensor
DC +/- 5 V
GND
1
2
3
4
5
6
7
8
9
10
11
12
DC +12 V
GND
1
2
5
6
9
10
Function Symbol Terminal
Power supply for ISFET sensor
DC +/- 4.85 V
GND
11
10
15
Standard signal input for
electrical current
0(4) - 20 mA
3
4
Standard signal input 
for voltage
0(2) - 10 V or 10 - 0(2) V
1
4
Temperature sensor 
in a two-wire circuit
Pt100 or Pt1000
2
3
4
Temperature sensor 
in a three-wire circuit
Pt100 or Pt1000
2
3
4
Resistance transmitter 4
3
2
pH/redox electrode
Shield for pH 
(with triaxial cable only!)
6
Glass/metal electrode
7
Reference electrode 8
Liquid potential (LP)
With asymmetrical connection,
bridge between 
terminal 8 and 9
Withsymmetrical connection, LP
on terminal 9
9
+
-
+
-
+
-
+
-
+
-
J
J
E
S
A

5 Installation
20
5.3.4PSU board (row 3)
Binary inputs
Binary input 112+
14
Binary input 213+
14
FunctionSymbolTerminal
Power supply for APM-1
Power supply:
AC 110 - 240 V
Power supply:
AC/DC 20 - 30 V
1 L1 (L+)
2 N (L-)
n.c. 4
5
6
Supply voltage for external 2-wire transmitter
24 V DC (-15 / +20%) 8 L +
9 L 
Relay 1
Switching output K1
(floating)
11
12
13
Relay 2
Switching output K2
(floating)
15
16
17
S
P
O
S
P
O