Kobold ACM-1 User manual

Kobold ACM-1
Transmitter/controller for conductivity, TDS,
resistance, temperature and standard signals
Operating instructions

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.
Operator language selection:
✱Press the key for longer than 3 seconds.
✱Select the appropriate language with the and keys.
✱Briefly press the key.
EXIT
PGM

Contents
1 Typographical conventions ...................................................... 7
1.1 Warning signs ..............................................................................................7
1.2 Reference signs ...........................................................................................7
2 Description ................................................................................ 8
3 Instrument identification ........................................................ 10
3.1 Nameplate ..................................................................................................10
3.2 Type designation ........................................................................................10
3.3 Accessories (included in delivery) ..............................................................12
3.4 Accessories (optional) ................................................................................12
4 Mounting .................................................................................. 13
4.1 General information ....................................................................................13
4.2 Dimensions ................................................................................................13
5 Installation ............................................................................... 14
5.1 Installation instructions ..............................................................................14
5.2 Electrical isolation ......................................................................................15
5.3 Connection .................................................................................................16
6 Operation ................................................................................. 20
6.1 Controls ......................................................................................................20
6.2 Display .......................................................................................................21
6.3 Principle of operation .................................................................................22
6.4 Measuring mode ........................................................................................25
6.5 Input/output information ............................................................................26
6.6 User level ...................................................................................................31
6.7 Administrator level .....................................................................................32
6.8 MANUAL mode / Simulation mode ............................................................35
6.9 HOLD mode ...............................................................................................38
7 Commissioning ....................................................................... 40
7.1 Getting started ...........................................................................................40
7.2 Setting examples .......................................................................................41
8 Calibrating a conductivity cell ............................................... 47
8.1 Notes ..........................................................................................................47
8.2 General information ....................................................................................47
8.3 Calibration of the temperature coefficient of the sample medium .............48
8.4 Calibrating the relative cell constant ..........................................................51

Contents
9 Calibrating a sensor with a standard signal ......................... 53
9.1 General information ....................................................................................53
9.2 Linear operating mode ...............................................................................55
9.3 pH operating mode ....................................................................................59
9.4 Conductivity operating mode .....................................................................63
9.5 Concentration operating mode ..................................................................69
9.6 Chlorine measurement operating mode,
pH-compensated 71
10 Calibration logbook ................................................................ 73
10.1 General information ....................................................................................73
11 Controller ................................................................................. 74
11.1 General information ....................................................................................74
11.2 Controller functions ....................................................................................74
11.3 Software controllers and outputs ...............................................................75
11.4 Configuration of higher order controllers ...................................................77
11.5 Parameter sets ...........................................................................................77
11.6 Sample configurations ...............................................................................78
12 Setup program ........................................................................ 80
12.1 Configurable parameters ...........................................................................80
12.2 Documenting the instrument configuration ................................................81
12.3 Special features for "Datalogger" ..............................................................82
13 Eliminating faults and malfunctions ...................................... 84
14 Technical data ......................................................................... 86
14.1 Approvals/marks of conformity ..................................................................88
15 Retrofitting optional boards ................................................... 89
16 Appendix ..................................................................................94
16.1Glossary .....................................................................................................94
16.2Parameters of the User level ....................................................................106
15.1Identifying an optional board .....................................................................89
15.2Removing a plug-in module .......................................................................91
15.3Inserting a plug-in module .........................................................................91
15.4Retrofitting optional boards (field housing) ................................................92
17 Disposal....................................................................................118
18 EU Declaration of Conformance.............................................119
19 UK Declaration of Conformance...........................................120

5
Index
1-point calibration - pH 59
2-point calibration97
2-point calibration - pH 61
A
Accessories 12
Administrator 32
B
Basic setting 32
Binary inputs and outputs
States 29
C
Calibration
Logbook 73
pH, 2-point 61
Standard signal 53
Standard signal, options 54
Calibration release 35
Cell constant 51–52
Configurable parameters 80
Controller
"Higher order" switching functions 74
"Simple" switching functions 74
Configuration of "higher order" controllers
77
General information 74
Parameter sets 77
Setting example, limit monitoring 78
Controller functions 74
Customer settings 106
D
Datalogger
Special features 82
Date of manufacture 10
Delete 35
Display 21
E
Electrical isolation 15
F
Factory settings 106
G
Getting started 40
H
HOLD mode 38
I
Info
Hardware 30
Instrument 31
Installation position 13
K
Key combinations 26
L
Language selection 2
Limit functions99
M
Manual 30
MANUAL mode 35
Analog outputs 37
Binary outputs 37
Controller 36
Deactivation 39
Switching outputs 36
Manual mode overview 30
Menu
Customer specs. 27
Min/max values 27–28
Mounting location 13
O
Optional inputs
Current values 29
Output 28
Output display 28
P
Parameter overview106
Password 32
Ph. Eur. 102
Principle 22
Principle of operation 26
Purified water102
R
Rapid access 26
Reference signs 7
Reset display brightness 2
S
Setting the operator language 2
Setup program 80

6
Simulation mode 35
Simulation of binary outputs 37
States 29
Sunlight 13
T
TDS measurement102
Temperature compensation97–98
U
Ultra-pure water101
User 31
User data 27
USP101
W
Warning signs 7
Wash timer 100
Washing contact100
Z
Zero point calibration 97
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you have
purchased. If you need an instruction manual that corresponds to the purchased
product version, you can request it from us free of charge by email
([e-mail]) in PDF format, specifying the relevant invoice numberand serial
number. If you wish, the operating instructions can also be sent to you by post in paper
form against an applicable postage fee.

7
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.

8
2 Description
Inputs/outputs In addition to the main input (conductivity, TDS, resistance) 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:
- Conductivity, TDS and resistance.
- 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.
Special features - Display: mS/cm, μS/cm, MOhm x cm, mg/l, pH, mV, etc. Special settings
are also possible with the setup program
- Configurable display text (operator level)
- A choice of display visualizations: large numbers, bar graph or tendency
Power supply
Optional board 2
Optional board 1
Optional board 3
2 Binary inputs
1 Main input
(conductivity, TDS and resistance)
1 Analog input
(compensation)
Setup interface
2 Relay (changeover)
Power supply
for a 2-wire transmitter

9
2 Description
(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)

10
3 Instrument identification
3.1Nameplate
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.: 0168287401012190001
VARTN: 20/00574309
AC/DC 20..30V 48..63Hz
≤13VA
F-Nr.: 0168287401012190001
VARTN: 20/00574309
AC/DC 20..30V
48..63Hz
≤13VA
ACM-1E24000