SWAN and its representatives maintain a fully trained staff of technical specialists
around the world. For any technical question, contact your nearest
SWAN representative, or the manufacturer:
SWAN ANALYTISCHE INSTRUMENTE AG
Studbachstrasse 13
8340 Hinwil
Switzerland
This document describes the main steps for instrument setup, operation and maintenance.
GeneralThe instructions included in this section explain the potential risks
Targ et
audience
OM LocationKeep the AMI Operator’s Manual in proximity of the instrument.
Qualification,
Training
associated with instrument operation and provide important safety
practices designed to minimize these risks.
If you carefully follow the information contained in this section, you
can protect yourself from hazards and create a safer work environment.
More safety instructions are given throughout this manual, at the
respective locations where observation is most important. Strictly
follow all safety instructions in this publication.
Operator: Qualified person who uses the equipment for its intended
purpose.
Instrument operation requires thorough knowledge of applications,
instrument functions and software program as well as all applicable
safety rules and regulations.
To be qualified for instrument installation and operation, you must:
read and understand the instructions in this manual as well as
the Material Safety Data Sheets.
know the relevant safety rules and regulations.
A-96.250.871 / 1204173
Page 6
AMI CACE
Safety Instructions
1.1.Warning Notices
The symbols used for safety-related notices have the following significance:
DANGER
Your life or physical wellbeing are in serious danger if such
warnings are ignored.
Follow the prevention instructions carefully.
WARNING
Severe injuries or damage to the equipment can occur if such
warnings are ignored.
Follow the prevention instructions carefully.
CAUTION
Damage to the equipment, minor injury, malfunctions or incorrect process can be the consequence if such warnings are ignored.
Follow the prevention instructions carefully.
Mandatory
Signs
The importance of the mandatory signs in this manual.
Safety goggles
Safety gloves
4A-96.250.871 / 120417
Page 7
AMI CACE
Safety Instructions
Warning SignsThe importance of the warning signs in this manual.
Electrical shock hazard
Corrosive
Harmful to health
Flammable
Warning general
Attention general
A-96.250.871 / 1204175
Page 8
AMI CACE
Safety Instructions
1.2.General Safety Regulations
Legal
Requirements
Spare Parts
and
Disposables
ModificationsModifications and instrument upgrades shall only be carried out by
The user is responsible for proper system operation.
All precautions must be followed to ensure safe operation
of the instrument.
Use only official SWAN spare parts and disposables. If other parts
are used during the normal warranty period, the manufacturer’s
warranty is voided.
an authorized Service Technician. SWAN will not accept responsibility for any claim resulting from unauthorized modification or alteration.
WARNING
Electrical Shock Hazard
If proper operation is no longer possible, the instrument must be
disconnected from all power lines, and measures must be taken
to prevent inadvertent operation.
To prevent from electrical shock, always make sure that
the ground wire is connected.
Service shall be performed by authorized personnel only.
Whenever electronic service is required, disconnect in-
strument power and power of devices connected to:
– relay 1,
– relay 2,
– alarm relay
WARNING
For safe instrument installation and operation you must read
and understand the instructions in this manual.
WARNING
Only SWAN trained and authorized personnel shall perform the
tasks described in this document.
6A-96.250.871 / 120417
Page 9
AMI CACE
Safety Instructions
1.3.Restriction for use
The AMI CACE is designed for determination of:
specific (total) conductivity
cation (acid) c
in power plant water.
It calculates the pH value and the concentration of the alkaline substance (NH
the water.
It is not suitable for pH determination in high purity water before
alkalization agent addition.
3
onductivity after the cation exchanger (CACE)
, morpholine, etc.) if an alkaline substance is present in
Conditions for pH calculation:
only 1 alkalization agent in the sample
the contamination is mostly NaCl
phosphate concentration is < 0.5 ppm
pH value is > 7.5, and < 11.5
if pH value is < 8, the concentration of contaminant must be
small compared to the concentration of the alkalization agent
No sand. No oil. Use of film forming products may reduce lifetime of
EDI module.
The sample must not contain any particles which may block the
flow cell. Sufficient sample flow is coercive for the correct function
of the instrument.
A-96.250.871 / 1204177
Page 10
AMI CACE
Product Description
2.Product Description
2.1.Description of the System
Application
Range
Special
Features
Signal
Outputs
RelaysTwo potential-free contacts programmable as limit switches for
Complete monitoring system for the automatic, continuous measurement of the specific (total) conductivity before a cation exchanger and the cation (acid) c
(CACE).
Based on difference conductivity measurement, the pH of the sample can be calculated.
Temperature compensation curves for conductivity measure-
Flow monitoring
Calculation of pH according to VGB 450L, edition 2006
Calculates the concentration of an alkaline substance present
in the water (ammonia, morpholine or ethanolamines).
Two signal outputs programmable for measured values (freely scalable, linear, bilinear, log) or as continuous control output (control
parameters programmable).
Current loop:0/4–20 mA
Maximal burden:510
Third signal output available as an option. The third signal output
can be operated as a current source or as a current sink (selectable
via switch).
measuring values, controllers or timer for system cleaning with automatic hold function. Both contacts can be set as normally open or
normally closed with a jumper.
Maximum load: 1 A/250 VAC
Open during normal operation, closed on error and loss of
power.
Closed during normal operation, open on error and loss of
power.
Summary alarm indication for programmable alarm values and instrument faults.
InputOne input for potential-free contact to freeze the measuring value
or to interrupt control in automated installations (hold function or re-
mote-off).
Communica-
tion interface
(optional)
Safety
Features
Measuring
principle
Specific
Conductivity
Cation Con-
ductivity (Acid
Conductivity)
USB Interface for logger download
Third signal output (can be used in parallel to the USB interface)
RS485 with Fieldbus protocol Modbus or Profibus DP
HART interface
No data loss after power failure. All data is saved in non-volatile
memory.
Over voltage protection of in- and outputs.
Galvanic separation of measuring inputs and signal outputs.
When a voltage is set between two electrodes in an electrolyte
solution, the result is an electric field which exerts force on the
charged ions: the positively charged cations move towards the negative electrode (cathode) and the negatively charged anions towards the positive electrode (anode). The ions, by way of capture
or release of electrons at the electrodes, are discharged and so a
current I flows through this cycle and the Ohm’s law V = I×R applies. From the total resistance R of the current loop, only the resistance of the electrolyte solution, respectively its conductivity
of interest.
The cell constant of the sensor is determined by the manufacturer
and is printed on the sensor label. If the cell constant has been programmed in the transmitter, the instrument measures correctly. No
calibration needs to be done, the sensor is factory calibrated. Measuring unit is S/cm or S/m.
Conductivity from all ions in the sample, mainly the alkalization
agent. The contribution of impurities is masked by the alkalization
agent.
The alkalization agent is removed by the cation exchange resin in
the EDI module. All cationic ions are exchanged with H+, all anionic
impurities (ions with negative charge) pass through the module unchanged and are measured by the second conductivity sensor.
1
/R, is
A-96.250.871 / 1204179
Page 12
AMI CACE
Product Description
Tem per atu re
compensation
Standard
Tem per atu re
Correction or
calibration
FluidicsThe sample flows into the flow cell block [D] via the sample inlet [L].
Regeneration
of the cation
exchange resin
The mobility of ions in water increases with higher temperature,
which enlarges the conductivity. Therefore, the temperature is measured simultaneously by an integrated Pt1000 temperature sensor
and the conductivity is compensated to 25 °C. Several temperature
compensation curves designed for different water compositions can
be chosen. After cation exchanger (cation conductivity), the temperature compensation curve strong acids has to be set.
For more information see: Influence of Temperature on Electrical
Conductivity, PPChem (2012).
The displayed conductivity value is compensated to 25°C standard
temperature.
Not necessary.
Auto zero is done automatically each day at 0:30 at night.
With the first conductivity sensor [A] the specific conductivity of the
sample is measured. A capillary tube [F] placed after the first conductivity sensor regulates the sample flow. Then the sample is led
through the sample chamber [I] containing a cation exchange resin.
Afterwards the cation conductivity of the sample is measured with
the second conductivity sensor [B]. The temperature is measured
with the temperature sensors integrated in the conductivity sensors.
After the measurement of specific and cation conductivity, the sample leaves the measuring cell via flow meter [E] and flows through
the anode chamber, where protons are generated by electrolysis of
water:
H
O --> ½ O2 + 2 H+ + 2e
The water is then led through the cathode chamber where it is reduced according to:
Finally, the sample leaves the EDI module and flows into the waste.
Under the influence of the electrical field generated by the two
electrodes, the protons produced at the anode are drawn towards
the cathode. They pass through the membrane and are absorbed
by the cation exchange resin in the sample chamber. At the same
time, the cations captured in the resin are released and move towards the cathode chamber, where they are dissolved by the sample water and flushed out of the EDI module. This process ensures
that the resin is continuously regenerated.
+
2 H
+ 2 e- --> H2 resp. 2 H2O + 2 e- --> ½ H2 + 2 OH
2
-
-
10A-96.250.871 / 120417
Page 13
AMI CACE
G
M
N
L
C
JK
F
I
H
D
E
BA
I
JK
H
G
D
X
Product Description
NOTICE: To visualize the sample flow more clearly, the EDI
module is shown only schematically. Lateral view X shows the
correct positions of the chambers and electrodes.
A
First conductivity sensor
B
Second conductivity sensor
C
Blind plug
D
Flow cell block
E
Flow meter
F
Capillary tube
G
EDI module
H
Deaeration tube
I
Sample chamber
J
Anode chamber
K
Cathode chamber
L
Sample inlet
M
Waste
N
Membranes
X
Lateral view of the EDI
module
A-96.250.871 / 12041711
Page 14
AMI CACE
Product Description
2.2.Instrument Specification
Power SupplyVoltage:100–240 VAC (± 10%)
50/60 Hz (± 5%)
or 24 VDC (± 10%)
Power consumption:max. 30 VA
Sample
requirements
On-site
requirements
Flow rate: 3–4 l /h
Temperature: up to 50 °C
Inlet pressure: up to 0.5 bar
Outlet pressure:pressure free
Use of a SWAN Backpressure Regulator is highly recommended.
Particle filtration recommended in case of high iron concentration.
NOTICE: No oil, no grease, no sand. Use of film forming
products may reduce lifetime of EDI module.
The analyzer site must permit connections to:
Sample inlet:Swagelok 1/4” adapter for stainless
steel tube
Sample outlet:G 3/8” adapter for flexible tube
diam. 20 x 15 mm
Measuring
range
EDI capacitySC
Accuracy±1% of measuring value or ±1 digit (whichever is greater)
Electronics
housing
DimensionsPanel: Dimensions: 280 x 850 x 200 mm
Measuring rangeResolution
0.055 to 0.999 S/cm0.001 S/cm
1.00 to 9.99 S/cm0.01 S/cm
10.0 to 99.9 S/cm0.1 S/cm
100 to 1000 S/cm1 S/cm
Automatic range switching.
= 40 S/cm as NH4OH
max
SC
= 350S/cm as NaOH
max
Aluminum with a protection degree of IP 66 / NEMA 4X
Ambient temperature:-10 to +50 °C
Humidity: 10–90% rel., non condensing
Display:backlit LCD, 75 x 45 mm
Screws:8 mm diameter
Weight: 14 kg
12A-96.250.871 / 120417
Page 15
AMI CACE
Product Description
280 mm / 11”
254 mm / 10”
13 mm / ½”
”
8
/
3
4 x dia. 10 mm /
”
16
/
7
850 mm / 33½”
824 mm / 32
A-96.250.871 / 12041713
Page 16
AMI CACE
A
B
C
D
E
F
G
Product Description
2.3.Instrument Overview
A
Panel
B
Transmitter
C
Specific conductivity sensor
D
Cation conductivity sensor
E
Flow cell
F
Flow meter
G
Electrodeionization (EDI)
module
14A-96.250.871 / 120417
Page 17
AMI CACE
Installation
3.Installation
3.1.Installation Checklist Monitors
CheckInstrument’s specification must conform to your AC power ratings.
Do not turn on power until instructed to do so.
On site requirements
Installation
Electrical Wiring
Power-up
Instrument
set-up
Run-in period
100– 240 VAC (± 10%), 50/60 Hz (± 5%) or 24 VDC, isolated
(±10%) power outlet with ground connection and 30 VA
For sample requirements see Instrument Specification, p. 12).
Mount the instrument in vertical position.
Display should be at eye level.
Remove the end caps from tubes 1, 2, 3, 5 and 10 and connect
the tubes according to Tube numbering, p. 43.
Connect sample inlet and outlet.
Connect all external devices like limit switches, current loops and
pumps (see Connection Diagram, p. 20).
Connect power cord; do not switch on power yet!
Open sample flow and wait until the instrument is completely
filled.
Check inlet pressure.
Switch on power.
Program all sensor parameters (see Sensor parameters, p. 28).
If required activate calculations (see Calculations, p. 29).
Program all parameters for external devices (interface,
recorders, etc.).
Program all parameters for instrument operation (limits, alarms).
Program display screens.
Let the instrument run continuously for 1 h.
A-96.250.871 / 12041715
Page 18
AMI CACE
Installation
3.2.Mounting of Instrument Panel
The first part of this chapter describes the preparing and placing of
the system for use.
The instrument must only be installed by trained personnel.
Mount the instrument in vertical position.
For ease of operation mount it so that the display is at eye
level.
For the installation a kit containing the following installation
material is available:
– 4 Screws 8x60 mm
– 4 Dowels
– 4 Washers 8.4/24 mm
Mounting re-
quirements
3.3.Connecting Sample Inlet and Outlet
3.3.1Swagelok Fitting Stainless Steel at Sample Inlet
PreparationCut the tube to length and deburr it. The tube must be straight and
Installation1 Insert the compression ferrule [C] and the compression
The instrument is only intended for indoor installation.
For dimensions see Dimensions, p. 12.
free from blemishes for approximately 1,5 x tube diameter from the
end.
Lubrication with lubricating oil, MoS2, Teflon etc. is recommended
for the assembly and reassembly of bigger sized unions (thread,
compression cone).
cone [D] into the union nut [B].
2 Screw the union nut onto the body, do not tighten it.
3 Push the stainless steel pipe through the union nut as far as it
reaches the stop of the body.
4 Mark the union nut at 6 o’clock position.
5 While holding the fitting body steady, tighten the nut union 1¼
rotation using an open ended spanner.
16A-96.250.871 / 120417
Page 19
AMI CACE
12
3
9
6
ABCDE
F
A
B
C
A
Installation
3.3.2EDI module tubing
A
Stainless steel tube
B
Union nut
C
Compression ferrule
Remove the end caps [A] from tubes 1, 2, 3, 5 and 10 and connect
the tubes according to Tube numbering, p. 43. Keep the end caps
for later use.
D
Compression cone
E
Body
F
Tightened connection
A End cap
3.3.3Tube at Sample Outlet
A
EDI module
B
Hose nozzle
C
A-96.250.871 / 12041717
Connect a plastic tube [C] to the hose nozzle [B] and place it into a
drain with atmospheric pressure.
Plastic tube 20 x 15 mm
Page 20
AMI CACE
Installation
3.4.Electrical Connections
Cable
thicknesses
WARNING
Electrical hazard.
Always turn off AC power before manipulating electric
parts.
Grounding requirements: Only operate the instrument
from an power outlet which has a ground connection.
Make sure the power specification of the instrument corre-
sponds to the power on site.
In order to comply with IP66, use the following cable thicknesses
ABC
PG 11 cable gland: cable Ø
A
B
PG 7 cable gland: cable Ø
C
PG 9 cable gland: cable Ø
NOTICE: Protect unused cable glands
Wire For Power and Relays: Use max. 1.5 mm
stranded wire with end sleeves.
For Signal Outputs and Input: Use 0.25 mm
stranded wire with end sleeves.
outer
3–6.5 mm
outer
4–8 mm
outer
5–10 mm
2
/ AWG 14
2
/ AWG 23
18A-96.250.871 / 120417
Page 21
AMI CACE
Installation
WARNING
External Voltage.
External supplied devices connected to relay 1 or 2 or to the
alarm relay can cause electrical shocks
Make sure that the devices connected to the following
contacts are disconnected from the power before resuming installation.
–relay 1
–relay 2
– alarm relay
WARNING
To prevent from electrical shock, do not connect the instrument
to the power unless the ground wire (PE) is connected.
Do not connect unless specifically instructed to do so.
WARNING
The mains of the AMI Transmitter must be secured by a main
switch and appropriate fuse or circuit breaker.
A-96.250.871 / 12041719
Page 22
AMI CACE
Installation
3.5.Connection Diagram
CAUTION
Use only the terminals shown in this diagram, and only for the
mentioned purpose. Use of any other terminals will cause short
circuits with possible corresponding consequences to material
and personnel.
20A-96.250.871 / 120417
Page 23
AMI CACE
A
B
C
D
Installation
WARNING
Electrical shock hazard
Installation and maintenance of electrical parts must be performed by professionals.
Always turn off AC power before manipulating electric
parts.
A
Power supply connector
B
Neutral conductor, Terminal 2
C
Phase conductor, Terminal 1
D
Protective earth PE
NOTICE: The protective earth wire (Ground) has to be
connected to the grounding terminal.
Installation
requirements
A-96.250.871 / 12041721
The installation must meet the following requirements.
Mains fuse 1.6 AT
Mains cable to comply with standards IEC 60227 or IEC
60245; flammable rating FV1
Mains equipped with an external switch or circuit-breaker
– near the instrument
– easily accessible to the operator
– marked as interrupter for AMI CACE
Page 24
AMI CACE
10
12
11
0V
1)
10
12
11
0V
Installation
3.6.Relay Contacts
3.6.1Input
3.6.2Alarm Relay
NOTICE: Use only potential-free (dry) contacts.
The total resistance (sum of cable resistance and resistance of
the relay contact) must be less than 50 Ω.
Terminals 16/42
For programming see Program Overview, p. 45.
NOTICE: Max. load: 1 A / 250 VAC
Alarm output for system errors.
Error codes see Troubleshooting, p. 38.
NOTICE: With certain alarms and certain settings of the AMI
transmitter the alarm relay does not switch. The error, however,
is shown on the display.
Ter min alsDescriptionRelay connection
1)
NC
Normally
Closed
10/11Active (opened) during normal
operation.
Inactive (closed) on error and
loss of power.
NO
Normally
Open
12/11Active (closed) during normal
operation.
Inactive (opened) on error and
loss of power.
1) usual use
22A-96.250.871 / 120417
Page 25
AMI CACE
6
0V
7
A
B
Installation
3.6.3Relay 1 and 2
NOTICE: Max. load: 1 A/250 VAC
Relay 1 and 2 can be configured as normally open or as normally
closed. Standard for both relays is normally open. To configure a relay as normally closed, set the jumper in the upper position.
NOTICE: Some error codes and the instrument status may
influence the status of the relays described below.
Relay
config.Terminals
Normally
Open
Normally
Closed
6/7: Relay 1
8/9: Relay 2
6/7: Relay 1
8/9: Relay 2
Jumper
pos.DescriptionRelay configuration
Inactive (opened) during
normal operation and
loss of power.
Active (closed) when a
programmed function is
executed.
Inactive (closed) during
normal operation and
loss of power.
Active (opened) when a
0V
programmed function is
executed.
6
7
ABJumper set as normally open (standard setting)
Jumper set as normally closed
For programming see Program Overview, p. 45, Menu Installation
A-96.250.871 / 12041723
Page 26
AMI CACE
A
BC
DE
M
A
BC
Installation
CAUTION
Risk of damage of the relays in the AMI Transmitter due to
heavy inductive load.
Heavy inductive or directly controlled loads (solenoid valves,
dosing pumps) may destroy the relay contacts.
To switch inductive loads > 0.1 A use an AMI relay box
available as an option or suitable external power relays.
Inductive loadSmall inductive loads (max 0.1 A) as for example the coil of a pow-
er relay can be switched directly. To avoid noise voltage in the
AMI Transmitter it is mandatory to connect a snubber circuit in parallel to the load.
A snubber circuit is not necessary if an AMI relaybox is used.
A
AC or DC power supply
B
AMI Transmitter
C
External power relay
D
Snubber
E
Power relay coil
Resistive loadResistive loads (max. 1 A) and control signals for PLC, impulse
pumps and so on can be connected without further measures
A
AB
C
AMI Transmitter
B
PLC or controlled pulse pump
C
Logic
ActuatorsActuators, like motor valves, are using both relays: One relay con-
tact is used for opening, the other for closing the valve, i.e. with the
2 relay contacts available, only one motor valve can be controlled.
Motors with loads bigger than 0.1 A must be controlled via external
power relays or an AMI relay box.
A
AC or DC power supply
B
AMI Transmitter
C
Actuator
24A-96.250.871 / 120417
Page 27
AMI CACE
Installation
3.7.Signal Outputs
3.7.1Signal Output 1 and 2 (current outputs)
3.8.Interface Options
NOTICE: Max. burden 510
If signals are sent to two different receivers, use signal isolator
(loop isolator).
Signal output 1: Terminals 14 (+) and 13 (-)
Signal output 2: Terminals 15 (+) and 13 (-)
For programming see Program Overview, p. 45, Menu Installation
A
AMI Transmitter
A
B
Slot for interfaces
C
Frontend PCB
D
Screw terminals
B
C
D
The slot for interfaces can be used to expand the functionality of
the AMI instrument with either:
Third signal output
a Profibus or Modbus connection
a HART connection
an USB Interface
A-96.250.871 / 12041725
Page 28
AMI CACE
Installation
3.8.1Signal Output 3
3.8.2Profibus, Modbus Interface
Terminals 38 (+) and 37 (-).
Requires the additional board for the third signal output 0/4 – 20 mA.
The third signal output can be operated as a current source or as a
current sink (switchable via switch [A]). For detailed information see
the corresponding installation instruction.
NOTICE: Max. burden 510
Third signal output 0/4 - 20 mA PCB
A Operating mode selector switch
Terminal 37 PB, Terminal 38 PA
To connect several instruments by means of a network or to config-
ure a PROFIBUS DP connection, consult the PROFIBUS manual.
Use appropriate network cable.
NOTICE: The switch must be ON, if only one instrument is
installed, or on the last instrument in the bus.
.
A
OFF
ON
A
Profibus, Modbus Interface PCB (RS 485)
A On - OFF switch
26A-96.250.871 / 120417
Page 29
AMI CACE
A
B
Installation
3.8.3HART Interface
3.8.4USB Interface
Terminals 38 (+) and 37 (-).
The HART interface PCB allows for communication via the HART
protocol. For detailed information, consult the HART manual.
HART Interface PCB
The USB Interface is used to store Logger data and for Firmware
upload. For detailed information see the corresponding installation
instruction.
The optional third signal output 0/4 – 20 mA PCB [B] can be
plugged onto the USB interface and used in parallel.
USB Interface
A USB interface PCB
B Third signal output 0/4 - 20 mA PCB
A-96.250.871 / 12041727
Page 30
AMI CACE
Instrument Setup
4.Instrument Setup
4.1.Establish sample flow
4.2.Programming
After the analyzer is installed according to the previous instructions,
connect the power cord. Do not switch on power, yet!
1 Open the sample tap
2 Check inlet pressure
3 Wait until the system has been completely filled
4 Switch on power
5 Let the instrument run in for 1 h
Sensor
parameters
Program all sensor parameters in Menu Installation-Sensors:
menu 5.1.2.1.1 for sensor 1 and
menu 5.1.2.2.1 for sensor 2.
The sensor characteristics are printed on the label of each sensor.
87-344.203UP-Con1000SLSensor type
SW-xx-xx-xxZK = 0.0417Cell constant
SWAN AGDT = 0.06 °CTemperature correction
Enter for each sensor separately the:
Cell constant [cm
Temperature correction [°C]
Cable length. If the flow cell is installed on the monitor, set the
cable length to 0.0 m.
Temperature compensation: The default setting for sensor 1
(specific conductivity) is ammonia. For sensor 2 (cation
conductivity), the default setting is strong acids.
-1
]
28A-96.250.871 / 120417
Page 31
AMI CACE
Instrument Setup
CalculationsMenu 5.1.1.1
Set <Calculations> to “Yes” if you want to have pH and alkalization
agent calculated and displayed.
Measuring unitMenu 5.1.1.2
Set the <Measuring unit> according to your requirements:
S/cm
S/m
DisplayMenu 4.4.1, Screen 1
Menu 4.4.2, Screen 2
Program display screens according to your requirements, see pro-
gram list and explanations 4.4 Display, p. 54.
External
devices
Limits AlarmsProgram all parameters for instrument operation (limits, alarms).
Program all parameters for external devices (interface, recorders,
etc.) See program list and explanations 5.2 Signal Outputs, p. 56
and 4.2 Relay Contacts, p. 53.
See program list and explanations 4.2 Relay Contacts, p. 53.
A-96.250.871 / 12041729
Page 32
AMI CACE
ExitEnter
BCDA
25.4°C
RUN
4 l/h
14:10:45
R1
8.45 _S
0.178
S
R2
1
Installation
Operation
Diagnostics
Messages
Maintenance
Main Menu
Enter
Exit
RUN
15:20:18
R1
R2
4.0 l/h21.8°C
22.1°C
µSsc
1
cc
8.79
0.178
µS
9.50
pH
ABD
E
1
F
I
H
G
C
Operation
5.Operation
5.1.Keys
Program
Access, Exit
Ato exit a menu or command (rejecting any changes)
to move back to the previous menu level
Bto move DOWN in a menu list and to decrease digits
Cto move UP in a menu list and to increase digits
to switch between display 1 and 2
Dto open a selected sub-menu
to accept an entry
5.2.Display
Example of
Display 1
30A-96.250.871 / 120417
Page 33
AMI CACE
Operation
Example of
Display 2
ABD
RUN
R1
R2
cc
I
4.0 l/h21.8°C
H
A RUNnormal operation
HOLDinput closed or cal delay: Instrument on hold (shows
status of signal outputs).
OFFinput closed: control/limit is interrupted (shows status
of signal outputs).
B ERROR Error Fatal Error
C Keys locked, transmitter control via Profibus
D Time
Process values Display 1; E2 Process values Display 2
E E
1
F Sample temperature 2
G Sample temperature 1
H Sample flow in l/ h
IRelay status
8.79
0.178
22.1°C
C
15:20:18
µSsc
µS
2
E
2
F
G
Relay status, symbols
upper/lower limit not yet reached
upper/lower limit reached
control upw./downw. no action
control upw./downw. active, dark bar indicates control intensity
motor valve closed
motor valve: open, dark bar indicates approx. position
timer
timer: timing active (hand rotating)
A-96.250.871 / 12041731
Page 34
AMI CACE
1
Messages
Operation
Maintenance
Diagnostics
Main Menu
Installation
1.1
Pending Errors
Messages
Maintenance List
Message List
2.1
Interface
I/O State
Sample
Identification
Sensors
Diagnostics
3.1
Maintenance
Set Time 23.09.06 16:30:00
Simulation
Exchange EDI module
4.1
Logger
Relay Contacts
Sensors
Operation
Display
5.1
Interface
Miscellaneous
Relay Contacts
Sensors
Signal Outputs
Installation
Operation
5.3.Software Structure
Menu Messages 1
Reveals pending errors as well as an event history
(time and state of events that have occurred at an
earlier point of time).
It contains user relevant data.
Menu Diagnostics 2
Provides user relevant instrument and sample data.
Menu Maintenance 3
For instrument calibration, relay and signal output
simulation, and to set the instrument time.
It is used by the service personnel.
Menu Operation 4
User relevant parameters that might need to be
modified during daily routine. Normally password
protected and used by the process-operator.
Subset of menu 5 - Installation, but process-related.
Menu Installation 5
For initial instrument set up by SWAN authorized
person, to set all instrument parameters. Can be
protected by means of password.
32A-96.250.871 / 120417
Page 35
AMI CACE
5.1.2
Sensors
Sensor typeFOME
TemperatureNT5KStandards
Disinf.Free chlorine
4.4.1
Logger
Log interval30 min
Clear loggerno
4.1.3
Logger
Clear loggerno
Log interval30min
1 Hour
Interval.
5 min
30 min
10 min
4.1.3
Logger
Log interval10 min
Clear loggerno
4.1.3
Logger
Log interval
Clear loggerno
No
Save ?
Yes
5.3.1.1.1
Alarm High3000 S
Cond. 1 (sc)
Alarm Low0.000
S
Hysteresis10.0
S
Delay5 Sec
5.3.1.1.1
Cond. 1 (sc)
Alarm Low0.000
S
Hysteresis10.0
S
Delay5 Sec
Alarm High2500
S
Operation
5.4.Changing Parameters and values
Changing
parameters
The following example shows how to change the logger interval:
1 Select the parameter you want to
change.
2 Press [Enter]
3 Press [] or [] key to
highlight the required parameter.
4 Press [Enter] to confirm the selec-
tion or [Exit] to keep the previous
parameter).
The selected parameter is
highlighted (but not saved yet).
5 Press [Exit].
Yes is highlighted.
6 Press [Enter] to save the new pa-
rameter.
The system reboots, the new
parameter is set.
Changing
values
A-96.250.871 / 12041733
1 Select the value you want to
change.
2 Press [Enter].
3 Set required value with [] or
[] key.
4 Press [Enter] to confirm the new
value.
5 Press [Exit].
Yes is highlighted.
6 Press [Enter] to save the new val-
ue.
Page 36
AMI CACE
Maintenance
6.Maintenance
WARNING
Stop operation before maintenance.
Stop sample flow.
Shut off power of the instrument.
6.1.Maintenance Schedule
Monthly Check sample flow.
Check inlet pressure.
If required Clean conductivity sensors.
Replace inlet filter (if installed).
6.2.Stop of Operation for Maintenance
1 Stop sample flow.
2 Shut off power of the instrument.
34A-96.250.871 / 120417
Page 37
AMI CACE
A
C
B
E
F
D
Maintenance
6.3.Maintenance of the Sensor
6.3.1Remove the Sensor from the Flow Cell
A
Conductivity sensor
B
Locking pin unlocked
C
Locking screw open
D
Locking pin locked
E
Alignment marks
F
Locking screw closed
The sensors are fixed in the flow cell with Swan’s slot lock system.
To remove the sensor from the flow cell proceed as follows:
1 Press the locking pin [B] down.
2 Turn the locking screw [C] with a 5 mm allen key counterclock-
wise 180°.
The locking pin remains down.
3 Remove the sensor.
CleaningIf the sensor is slightly contaminated, clean it with soapy water and
a pipe cleaner. If the sensor is strongly contaminated, dip the tip of
the sensor into 5% hydrochloric acid for a short time.
6.3.2Install the Sensor into the Flow Cell
1 Make sure that the locking mechanism is in unlocked position
(locking screw in position [C] and locking pin in position [B]).
2 Put the sensor into the flow cell with the alignment marks [E] in
A-96.250.871 / 12041735
line.
3 Turn the locking screw with a 5 mm allen key clockwise 180°.
The locking pin moves up in lock position.
Page 38
AMI CACE
A
B
CDEFG
Maintenance
6.4.Replacing Fuses
WARNING
External Voltage
External supplied devices connected to relay 1 or 2 or to the
alarm relay can cause electrical shocks
Make sure that the devices connected to the following
contacts are disconnected from the power before resuming installation.
– relay 1
– relay 2
– alarm relay
When a fuse has blown, find out the cause and fix it before replacing it with a new one.
Use tweezers or needle-nosed pliers to remove the defective fuse.
Use original fuses provided by SWAN only.
A
B
C
D
E
F
G
1.6 AT/250V Instrument power supply
1.0 AT/250V Relay 1
1.0 AT/250V Relay 2
1.0 AT/250V Alarm relay
1.0 AF/125V Signal output 2
1.0 AF/125V Signal output 1
1.0 AF/125V Signal output 3
36A-96.250.871 / 120417
Page 39
AMI CACE
1B
3
2
5
4
10
A
Maintenance
6.5.Longer Stop of Operation
If the instrument is not used for a longer period of time (2 months or
more), drain the EDI module and seal the tube fittings marked in
red using the end caps [A] supplied with the instrument.
A End cap
Procedure1 Stop sample flow.
2 Unscrew the top ends of tubes 1 and 2.
3 Drain the EDI module through tube 2.
4 Seal tubes 1 and 2 using the end caps [A].
5 Unscrew tubes 3, 5 and 10 at the positions marked in red and
seal them using the end caps [A].
6 Shut off power of the instrument.
A-96.250.871 / 12041737
Page 40
AMI CACE
Troubleshooting
7.Troubleshooting
Conditions for
pH calculation
This chapter provides some hints to make troubleshooting easier.
For any detailed information on how to handle/clean parts please
see chapter Maintenance, p. 34.
For any detailed information on how to program the instrument
please see chapter Program List and Explanations, p. 50.
If you need help please contact your local distributor. Note serial
number of instrument and all diagnostic values before.
only 1 alkalization agent (acid-base pair) in the sample (no
mixture)
the contamination is mostly NaCl
phosphate concentration is < 0.5 ppm
if pH value is < 8, the concentration of contaminant must be
small compared to the concentration of the alkalization agent
pH value is > 7.5, and < 11.5
ProblemPossible Reason
Cond. value
<0.055 S/cm
No pH/alkalization agent value
available in display, relay, signal
output
Air bubble at sensor tip or sensor in air.
Switch on calculations in <Installation> /
<Sensor> / <Miscellaneous> /
<Calculations>.
Afterwards program screen 1 and 2 in
<Operation> / <Display> / <Screen 1>,
<Screen 2>.
38A-96.250.871 / 120417
Page 41
AMI CACE
25.4°C
HOLD
8 l/h
14:10:45
R1
8.458 S
0.171 SR2
1
Installation
Operation
Diagnostics
Messages
Maintenance
Main Menu
1.1
Message List
Pending Errors
Maintenance List
Messages
1.1.5
Pending Errors
Error CodeE010
Sample Flow low
<Enter> to Acknowledge
Troubleshooting
7.1.Error List
Error
Non-fatal Error. Indicates an alarm if a programmed value is exceeded.
Such Errors are marked E0xx (bold and black).
Fatal Error (blinking symbol)
Control of dosing devices is interrupted.
The indicated measured values are possibly incorrect.
Fatal Errors are divided in the following two categories:
Errors which disappear if correct measuring conditions are re-
covered (i.e. Sample Flow low).
Such Errors are marked E0xx(bold and orange)
Errors which indicate a hardware failure of the instrument.
Such Errors are marked E0xx (bold and red)
Error or fatal Error
Error not yet acknowledged.
Check Pending Errors 1.1.5 * and
take corrective action.
Press [ENTER].
A-96.250.871 / 12041739
Navigate to menu Messages.
Press [ENTER].
Navigate to menu Pending Errors.
Press [ENTER].
Press [ENTER] to acknowledge the
Pending Errors. The Error is reset and
saved in the Message List.
* Menu numbers see
Program Overview, p. 45
Page 42
AMI CACE
Troubleshooting
ErrorDescriptionCorrective action
E001
E002
E003
E004
E007
E008
E009
E010
E011
E012
E013
Cond. 1 Alarm high– check process
– check programmed value, see 5.3.1.1,
p. 62
Cond. 1 Alarm low– check process
– check programmed value, see 5.3.1.1,
p. 62
Cond. 2 Alarm high– check process
– check programmed value, see
5.3.1.1.2.1, p. 63
Cond. 2 Alarm low– check process
– check programmed value, see
5.3.1.1.2.25, p. 63
Temp. 1 Alarm high– check process
– check programmed value, see
5.3.1.1.4, p. 63
Temp. 1 Alarm low– check process
– check programmed value, see
5.3.1.1.4, p. 63
Sample Flow high– check sample inlet pressure
Sample Flow low– check sample inlet pressure
– check if the following components are
clogged:
inlet filter (if installed)
tubes
EDI module
– If necessary, replace clogged parts.
See Tube numbering, p. 43 and
Replacing the EDI module, p. 44.
Temp. 1 shorted– Check wiring of temperature sensor
– Check temperature sensor
Temp. 1 disconnected– Check wiring of temperature sensor
– Check temperature sensor
Case Temp. high– check case/environment temperature
– check programmed value, see
5.3.1.4.1, p. 65
40A-96.250.871 / 120417
Page 43
AMI CACE
Troubleshooting
ErrorDescriptionCorrective action
E014Case Temp. low
E015pH Calculation undef.
E017Control time-out
E019Temp. 2 shorted
E020Temp. 2 disconnected
E024Input active
E026IC LM75
E028Signal output open
E030EEProm Frontend
E031Cal. Recout
E032Wrong Frontend
E033pH Alarm high
E034pH Alarm low
E035Alkali Alarm high
E036Alkali Alarm low
E037Temp. 2 Alarm high
– check case/environment temperature
– check programmed value, see
5.3.1.4.2, p. 65
– Calculated pH value < 7.5 or > 11.5
– Check control device or programming
in Installation, Relay contact, Relay 1/2
5.3.2 and 5.3.3, p. 66
– check wiring of temperature sensor
– check temp. sensor
– check wiring of temperature sensor
– check temp. sensor
– See If Fault Yes is programmed in
Menu see 5.3.4, p. 70
– call service
– check wiring on signal outputs 1 and 2
– call service
– call service
– call service
– check process
– check programmed value, see
5.3.1.1.4.1, p. 63
– check process
– check programmed value, see
5.3.1.1.4.25, p. 63
– check process
– check programmed value, see
5.3.1.1.5, p. 64
– check process
– check programmed value, see
5.3.1.1.5, p. 64
– check process
– check programmed value, see
5.3.1.2.2.1, p. 64
A-96.250.871 / 12041741
Page 44
AMI CACE
Troubleshooting
ErrorDescriptionCorrective action
E038Temp. 2 Alarm low
E043EDI out of range
E044No sample flow
E045EDI DAC disconnected
E046EDI ADC disconnected
E049Power-on
E050Power-down
E065EDI module exhausted
– check process
– check programmed value, see
5.3.1.2.2.25, p. 64
– check sample inlet pressure and
acknowledge this error message
– If the problem persists, stop sample
flow and call service
– check sample inlet pressure.
– check if the following components are
clogged:
inlet filter (if installed)
tubes
EDI module
– If necessary, replace clogged parts.
See Tube numbering, p. 43 and
Replacing the EDI module, p. 44.
– Stop sample flow and call service
– Stop sample flow and call service
– none, normal status
– none, normal status
– replace EDI module, see Replacing the
EDI module, p. 44.
42A-96.250.871 / 120417
Page 45
AMI CACE
*Only needed if the optional inlet
filter is installed
Tube no.Length
1A*440 mm
1B440 mm
2360 mm
3530 mm
4360 mm
5152 mm
102500 mm
Tubing for optional inlet filter:
Troubleshooting
7.2.Tube numbering
To replace tube no. 10, the EDI module needs to be unmounted.
Proceed according to Replacing the EDI module, p. 44 (select <no>
at the end of the procedure).
3
10
1B
2
5
4
1A
A-96.250.871 / 12041743
1B
Page 46
AMI CACE
C
C
D
A
B
B
3.3.1
Exchange EDI
Has the EDI module
been exchanged?
yes
no
Troubleshooting
7.3.Replacing the EDI module
Select Menu 3.3 (Maintenance/Exchange EDI) and follow the instructions on the display.
Status of relays and signal outputs during the procedure:
Signal outputs are on hold
All limits are switched off
OverviewTo unmount the EDI module, unscrew screws [A] and [D] and the
upper ends of tubes [1], [2] and [3].
ABTop screws (2x)
Totalizers
and date of
exchange
44A-96.250.871 / 120417
Holder
CDEDI module
Bottom screw
At the end of the procedure, the user
is asked if the EDI module has been
exchanged.
If <yes> is selected, the totalizers in
the diagnostics menu are reset and
the date of exchange is saved.
Page 47
AMI CACE
Program Overview
8.Program Overview
For explanations about each parameter of the menus see Program
List and Explanations, p. 50
Menu 1 Messages informs about pending errors and mainte-
nance tasks and shows the error history. Password protection
possible. No settings can be modified.
Menu 2 Diagnostics is always accessible for everybody. No
password protection. No settings can be modified.
Menu 3 Maintenance is for service: Calibration, simulation of
outputs and set time/date. Please protect with password.
Menu 4 Operation is for the user, allowing to set limits, alarm
values, etc. The presetting is done in the menu Installation
(only for the System engineer). Please protect with password.
Menu 5 Installation: Defining assignment of all inputs and
outputs, measuring parameters, interface, passwords, etc.
Menu for the system engineer. Password strongly recommended.
8.1.Messages (Main Menu 1)
Pending ErrorsPending Errors1.1.5** Menu numbers
1.1*
Maintenance ListMaintenance List1.2.5*
1.2*
Message ListNumber1.3.1*
1.3*Date, Time
A-96.250.871 / 12041745
Page 48
AMI CACE
Program Overview
8.2.Diagnostics (Main Menu 2)
IdentificationDesignationAMI CACE* Menu numbers
2.1*VersionV6.20-10/16
Factory TestInstrument2.1.4.1*
2.1.4*Motherboard
Front End
Operating TimeYears / Days / Hours / Minutes / Seconds2.1.5.1*
1.1.5Provides the list of active errors with their status (active, acknowl-
1.2 Maintenance List
1.2.5Provides the list of necessary maintenance. Cleared maintenance
1.3 Message List
1.3.1Shows the error history: Error code, date / time of issue and status
2 Diagnostics
2.1 Identification
2.1.4Factory Test: Test date of the Instrument, Motherboard and
2.1.5Operating Time: Years / Days / Hours / Minutes / Seconds
2.2 Sensors
2.2.1Conductivity:
2.2.1.1Sensor 1: Shows the
2.2.1.2Sensor 2: Shows the
edged). If an active error is acknowledged, the alarm relay is active
again. Cleared errors are moved to the Message list.
messages are moved to the Message list.
(active, acknowledged, cleared). 65 errors are memorized. Then
the oldest error is cleared to save the newest error (circular buffer).
In diagnostics mode, the values can only be viewed, not modified.
Desig.: Designation of the instrument.
Ver sio n: Firmware of instrument (e.g. V6.20-10/16)
Frontend
Current value in µS
Raw value in µS
Cell Constant
Current value in µS
Raw value in µS
Cell Constant
50A-96.250.871 / 120417
Page 53
AMI CACE
Program List and Explanations
2.2.2Miscellaneous:
2.2.2.1Case Temp: Shows the current temperature in [°C] inside the trans-
2.2.3EDI:
2.2.3.1Actual current: Current in mA applied to the EDI module.
2.3 Sample
2.3.1Sample ID: Shows the identification assigned to a sample. This
2.3.2Sample Flow: Shows the current sample flow in l/ h and the Raw
2.3.3Sample Temp:
2.3.3.1Temp 1: Shows the current sample temperature at sensor 1 in °C.
2.4 I/O State
2.4.1/2.4.2
mitter.
Actual voltage: Resulting voltage in mV.
Tota l c u r re n t: Amount of electric charge in Ah since the last ex-
change of the EDI module.
Tota l f l o w: Amount of sample water in L since the last exchange of
the EDI module.
Last exchange: Date of the last exchange.
identification is defined by the user to identify the location of the
sample.
Value in Hz.
The Sample flow must be above 2.5 l/h.
(Pt 1000): Shows the current temperature at sensor 1 in Ohm.
Temp 2 : Shows the current temperature at sensor 2 in °C.
(Pt 1000): Shows the current temperature at sensor 2 in Ohm.
Shows current status of all in- and outputs.
Alarm Relay:Active or inactive.
Relay 1/2: Active or inactive.
Input: Open or closed.
Signal Output 1/2: Actual current in mA
Signal Output 3:(optional)Actual current in mA
2.5 Interface
Only available if optional interface is installed.
Review programmed communication settings.
A-96.250.871 / 12041751
Page 54
AMI CACE
Program List and Explanations
3 Maintenance
3.1 Simulation
To simulate a value or a relay state, select
alarm relay
relay 1/2
signal output 1/2
with the [] or [] key.
Press the <Enter> key.
Change the value or state of the selected item with the [] or
[] key.
Press the <Enter> key.
The value is simulated by the relay/signal output.
Alarm Relay:Active or inactive
Relay 1/2: Active or inactive
Signal Output 1/2: Actual current in mA
Signal Output 3 (optional)Actual current in mA
At the absence of any key activities, the instrument will switch back
to normal mode after 20 min. If you quit the menu, all simulated values will be reset.
3.2 Exchange EDI
See Replacing the EDI module, p. 44.
3.3 Set Time
Adjust date and time.
52A-96.250.871 / 120417
Page 55
AMI CACE
Program List and Explanations
4 Operation
4.1 Sensors
4.1.1Filter Time Constant: Used to damp noisy signals. The higher the
4.1.2Hold after Cal.: Delay permitting the instrument to stabilize again af-
4.2 Relay Contacts
4.3 Logger
4.3.1Log Interval: Select a convenient log interval. Consult the table be-
filter time constant, the slower the system reacts to changes of the
measured value.
Range: 5–300 Sec
ter calibration. During calibration plus hold-time, the signal outputs
are frozen (held on last valid value), alarm values, limits are not active.
Range: 0–6‘000 Sec
See Relay Contacts, p. 22
The instrument is equipped with an internal logger. The logger data
can be copied to a PC with an USB stick if option USB interface is
installed.
The logger can save approx. 1500 data records. Records consist
of: Date, time, alarms, measured value, measured value uncompensated, temperature, flow.
Range: 1 Second to 1 hour
low to estimate the max logging time. When the logging buffer is
full, the oldest data record is erased to make room for the newest
one (circular buffer).
Interval1 s5 s1 min5 min10 min30 min1 h
Time25 min2 h25 h5 d10 d31 d62 d
4.3.2Clear Logger: If confirmed with yes, the complete logger data is de-
leted. A new data series is started.
4.3.3Eject USB Stick: With this function all logger data are copied to the
A-96.250.871 / 12041753
USB stick before the USB stick is deactivated.
Only visible it the optional USB interface is installed.
Page 56
AMI CACE
Program List and Explanations
4.4 Display
Process values are displayed on two screens. Toggle screens with
the [] key. Each screen displays max. 3 process values.
4.4.1Screen 1
4.4.1.1Row 1
4.4.1.2Row 2
4.4.1.3Row 3
Possible settings for all rows are:
None
Cond 1 (sc)
Cond 2 (cc)
Difference
pH (if <Calculations> = yes)
Ammonia (depends on the settings in <Sensor parameters> /
<Temp. comp.>)
4.4.2Screen 2
Same as screen 1.
54A-96.250.871 / 120417
Page 57
AMI CACE
Program List and Explanations
5 Installation
5.1 Sensors
5.1.1Miscellaneous
5.1.1.1Calculations: Select “yes” if pH and ammonia concentrations
5.1.1.2Meas. unit: Choose the measuring unit as µS/ cm or µS / m
5.1.2Sensor parameters
5.1.2.1Sensor 1
5.1.2.1.1Cell Constant: Enter the cell constant printed on the sensor label.
5.1.2.1.2Te mp . Co r r : Enter the temperature correction printed on the sensor
5.1.2.1.3Cable length: Enter the cable length. If the flow cell is installed on
5.1.2.1.5Temp. comp
5.1.2.1.5.1Comp.: Available compensation models:
5.1.2.2Sensor 2
5.1.2.2.1Cell Constant: Enter the cell constant printed on the sensor label.
5.1.2.2.2Te mp . Co r r : Enter the temperature correction printed on the sensor
5.1.2.2.3Cable length: Enter the cable length. If the flow cell is installed on
should be calculated. pH and ammonia are now available on
screen 1 or 2, on the signal outputs and as alarm or limit values.
Range: 0.0300 cm
label.
Range: -1 °C to 1 °C
the monitor, set the cable length to 0.0 m.
Range: 0.0 m to 30.0 m
Strong acids (Never select strong acids for sensor 1!)
Strong bases
Ammonia
Morpholine
Ethanolamines
Neutral salts
High purity water
Coefficient
none
Range: 0.0300 cm
label.
Range: -1 °C to 1 °C
the monitor, set the cable length to 0.0 m.
Range: 0.0 m to 30.0 m
-1
to 0.0600 cm
-1
to 0.0600 cm
-1
-1
A-96.250.871 / 12041755
Page 58
AMI CACE
Program List and Explanations
5.1.2.2.5Temp. comp:
5.1.2.2.5.1Comp.: Available compensation models:
Strong acids
5.2 Signal Outputs
NOTICE: The navigation in the menu <Signal Output 1> and
<Signal Output 2> is equal. For reason of simplicity only the
menu numbers of Signal Output 1 are used in the following.
5.2.1Signal Output 1: Assign process value, the current loop range and
a function to each signal output.
5.2.1.1Parameter: Assign one of the process values to the signal output.
Available values:
5.2.1.2Current Loop: Select the current range of the signal output. Make
sure the connected device works with the same current range.
Available ranges: 0– 20 mA or 4–20 mA
5.2.1.3Function: Define if the signal output is used to transmit a process
value or to drive a control unit. Available functions are:
Linear, bilinear or logarithmic for process values.
See As process values, p. 57
Control upwards or control downwards for controllers.
See As control output, p. 59
56A-96.250.871 / 120417
Page 59
AMI CACE
20
0.00.10.20.30.40.5
10 12
(0 - 20 [mA])
0 / 4
(4 - 20 [mA])
[mA]
X
AB
20
1
01234
101001’000 10’000
10 12
(0 - 20 [mA])
0 / 4
426
(4 - 20 [mA])
[mA]
X
Program List and Explanations
As process
values
The process value can be represented in 3 ways: linear, bilinear or
logarithmic. See graphs below.
ABlinear
X Measured value
bilinear
A-96.250.871 / 12041757
X Measured value (logarithmic)
Page 60
AMI CACE
Program List and Explanations
5.2.1.40Scaling: Enter beginning and end point (Range low & high) of the
linear or logarithmic scale. In addition, the midpoint for the bilinear
scale.
Parameter Cond. 1(sc):
5.2.1.40.10Range low: 0.000–3000 S
5.2.1.40.20Range high: 0.000–3000 S
Parameter Cond. 2(cc):
5.2.1.40.11Range low: 0.000–3000 S
5.2.1.40.21Range high: 0.000–3000 S
Parameter Temp. 1
5.2.1.40.13Range low: -25 to +270 °C
5.2.1.40.23Range high: -25 to +270 °C
Parameter Temp. 2
5.2.1.40.14Range low: -25 to +270 °C
5.2.1.40.24Range high: -25 to +270 °C
Parameter Difference
5.2.1.40.16Range low: 0.000–3000 S
5.2.1.40.26Range high: 0.000–3000 S
Parameter Sample flow
5.2.1.40.17Range low: 0.0– 20 l / h
5.2.1.40.27Range high: 0.0–20 l/ h
Parameter pH
5.2.1.40.18Range low: 0.00– 14 pH
5.2.1.40.28Range high: 0.00–14 pH
Parameter Ammonia
5.2.1.40.19Range low: 0.00–500 ppm
5.2.1.40.29Range high: 00.0–500 ppm
58A-96.250.871 / 120417
Page 61
AMI CACE
Program List and Explanations
As control
output
Signal outputs can be used for driving control units. We distinguish
different kinds of controls:
P-controller: The controller action is proportional to the devia-
tion from the setpoint. The controller is characterized by the
P-Band. In the steady-state, the setpoint will never be
reached. The deviation is called steady-state error.
Parameters: setpoint, P-Band
PI-controller: The combination of a P-controller with an
I-controller will minimize the steady-state error. If the reset
time is set to zero, the I-controller is switched off.
Parameters: setpoint, P-Band, reset time.
PD-controller: The combination of a P-controller with a
D-controller will minimize the response time to a fast change
of the process value. If the derivative time is set to zero, the
D-controller is switched off.
Parameters: setpoint, P-Band, derivative time.
PID-controller: The combination of a P-, an I - and a D-con-
troller allows a proper control of the process.
Parameters: setpoint, P-Band, reset time, derivative time.
Ziegler-Nichols method for the optimization of a PID controller:
Parameters: Setpoint, P-Band, Reset time, Derivative time
Y
B
A
X
a
L
= 1.2/a
Response to maximum control output
A
Tangent on the inflection point
B
Time
X
Xp
Tn
Tv
= 2L
= L/2
The point of intersection of the tangent with the respective axis will
result in the parameters a and L.
Consult the manual of the control unit for connecting and programming details. Choose control upwards or downwards.
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Control upwards or downwards
Setpoint: User-defined process value for the selected parameter.
P-Band: Range below (upwards control) or above (downwards con-
trol) the set-point, within the dosing intensity is reduced from 100%
to 0% to reach the setpoint without overshooting.
5.2.1.40Control Parameters: if Parameters = Cond. 1(sc)
5.2.1.40.10Setpoint
Range: 0.000–3000 S
5.2.1.40.20P-Band:
Range: 0.000–3000 S
5.2.1.40Control Parameters: if Parameters = Cond. 2(cc)
5.2.1.40.11Setpoint
Range: 0.000–3000 S
5.2.1.40.21P-Band:
5.2.1.40Control Parameters: if Parameters = Temp.1
5.2.1.40.13Setpoint
5.2.1.40.23P-Band:
5.2.1.40Control Parameters: if Parameters = Temp. 2
5.2.1.40.14Setpoint
5.2.1.40.24P-Band:
5.2.1.40Control Parameters: if Parameters = Difference
5.2.1.40.16Setpoint
5.2.1.40.26P-Band:
5.2.1.40Control Parameters: if Parameters = Sample flow
5.2.1.40.17Setpoint
5.2.1.40.27P-Band:
Range: 0.000–3000 S
Range: -25 to +270 °C
Range: -25 to +270 °C
Range: -25 to +270 °C
Range: -25 to +270 °C
Range: 0.000–3000 S
Range: 0.000–3000 S
Range: 0.0–20 l/h
Range: 0.0–20 l/h
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5.2.1.40Control Parameters: if Parameters = pH
5.2.1.40.18Setpoint
5.2.1.40.28P-Band:
5.2.1.40Control Parameters: if Parameters = Ammonia
5.2.1.40.19Setpoint
5.2.1.40.29P-Band:
Range: 0.00–14 pH
Range: 0.00–14 pH
Range: 0.00–500 ppm
Range: 0.00–500 ppm
5.2.1.40.3Reset time: The reset time is the time till the step response of a sin-
5.2.1.40.4Derivative time: The derivative time is the time till the ramp re-
5.2.1.40.5Control timeout: If a controller action (dosing intensity) is constantly
gle I-controller will reach the same value as it will be suddenly
reached by a P-controller.
Range: 0–9’000 sec
sponse of a single P-controller will reach the same value as it will
be suddenly reached by a D-controller.
Range: 0–9’000 sec
over 90% during a defined period of time and the process value
does not come closer to the setpoint, the dosing process will be
stopped for safety reasons.
Range: 0–720 min
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5.3 Relay Contacts
5.3.1Alarm Relay: The alarm relay is used as cumulative error indicator.
Under normal operating conditions the contact is active.
The contact isinactive at:
Power loss
Detection of system faults like defective sensors or electronic
parts
High case temperature
Process values out of programmed ranges.
Program alarm levels, hysteresis values and delay times for the following parameters:
5.3.1.1.1.1Alarm High: If the measured value rises above the alarm high value, the alarm relay is activated and E001, is displayed in the message list.
Range: 0.000–3000 S
5.3.1.1.1.25Alarm Low: If the measured value falls below the alarm low value,
the alarm relay is activated and E002 is displayed in the message
list.
Range: 0.000–3000 S
5.3.1.1.1.35Hysteresis: Within the hyst. range, the relay does not switch. This
prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range. 0.000–3000 S
5.3.1.1.1.45Delay: Duration, the activation of the alarm relay is retarded after
the measuring value has risen above/fallen below the programmed
alarm.
Range: 0–28‘800 Sec
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5.3.1.1.2Cond. 2 (cc)
5.3.1.1.2.1Alarm High: If the measured value rises above the alarm high value, the alarm relay is activated and E003, is displayed in the message list.
Range: 0.000 –3000 S
5.3.1.1.2.25Alarm Low: If the measured value falls below the alarm low value,
the alarm relay is activated and E004 is displayed in the message
list.
Range: 0.000 –3000 S
5.3.1.1.2.35Hysteresis: Within the hyst. range, the relay does not switch. This
prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range. 0.000 –3000 S
5.3.1.1.2.45Delay: Duration, the activation of the alarm relay is retarded after
the measuring value has risen above/fallen below the programmed
alarm.
Range: 0–28‘800 Sec
5.3.1.1.4pH (if Calculations = yes)
5.3.1.1.4.1Alarm High: If the measured value rises above the alarm high val-
5.3.1.1.4.25Alarm Low: If the measured value falls below the alarm low value,
5.3.1.1.4.35Hysteresis: Within the hyst. range, the relay does not switch. This
5.3.1.1.4.45Delay: Duration, the activation of the alarm relay is retarded after
ue, the alarm relay is activated and E033, is displayed in the message list.
Range: 0.00–14 pH
the alarm relay is activated and E034 is displayed in the message
list.
Range: 0.00–14 pH
prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range: 0.00–14 pH
the measuring value has risen above/fallen below the programmed
alarm.
Range: 0–28‘800 Sec
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5.3.1.1.5Ammonia (if Calculations = yes)
5.3.1.1.5.1Alarm High: If the measured value rises above the alarm high val-
5.3.1.1.5.25Alarm Low: If the measured value falls below the alarm low value,
5.3.1.1.5.35Hysteresis: Within the hyst. range, the relay does not switch. This
5.3.1.1.5.45Delay: Duration, the activation of the alarm relay is retarded after
5.3.1.2Sample Temp.
5.3.1.2.1Temp. 1
5.3.1.2.1.1Alarm High: If the measured value rises above the alarm high val-
5.3.1.2.1.25Alarm Low: If the measured value falls below the alarm low value,
5.3.1.2.2Temp. 2
5.3.1.2.2.1Alarm High: If the measured value rises above the alarm high val-
5.3.1.2.2.25Alarm Low: If the measured value falls below the alarm low value,
ue, the alarm relay is activated and E035 is displayed in the message list.
Range: 0.00–500 ppm
the alarm relay is activated and E036 is displayed in the message
list.
Range: 0.00–500 ppm
prevents damage of relays contacts when the measured value fluctuates around the alarm value.
Range: 0.00–500 ppm
the measuring value has risen above/fallen below the programmed
alarm.
Range: 0–28‘800 Sec
ue, the alarm relay is activated and E007, is displayed in the message list.
Range: 30–200 °C
the alarm relay is activated and E008 is displayed in the message
list.
Range: -10 to +20 °C
ue, the alarm relay is activated and E037, is displayed in the message list.
Range: 30–200 °C
the alarm relay is activated and E038 is displayed in the message
list.
Range: -10 to +20 °C
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5.3.1.4Case Temp.
5.3.1.4.1Alarm high: Set the alarm high value for temperature of electronics
5.3.1.4.2Alarm low: Set the alarm low value for temperature of electronics
housing. If the value rises above the programmed value E013 is issued.
Range: 30–75 °C
housing. If the value falls below the programmed value E014 is issued.
Range: -10 to +20 °C
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5.3.2 and 5.3.3Relay 1 and 2: The contacts can be set as normally open or normally closed with a jumper. See Relay 1 and 2, p. 23.
The function of relay contacts 1 or 2 is defined by the user.
NOTICE: The navigation in the menu <Relay 1> and <Relay 2>
is equal. For reason of simplicity only the menu numbers of
Relay 1 are used in the following.
2 Enter the necessary data depending on the selected function.
The same values can also be entered in menu 4.2 Relay Con-
tacts, p. 53
5.3.2.1Function = Limit upper/lower:
When the relays are used as upper or lower limit switches, program
the following:
5.3.2.20Parameter: select a process value
5.3.2.300Setpoint: If the measured value rises above respectively falls below
the set-point, the relay is activated.
ParameterRange
Cond. 1 (sc)0–3000 S
Cond. 2 (cc)0–3000 S
Temp. 1-25 to + 270 °C
Temp. 2-25 to + 270 °C
Difference0–3000 S
Sample flow0–20 l/h
pH0 – 14 pH
Ammonia0– 500 ppm
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5.3.2.400Hysteresis: within the hysteresis range, the relay does not switch.
This prevents damage of relay contacts when the measured value
fluctuates around the alarm value.
Parameter Range
Cond. 1 (sc)0–3000 S
Cond. 2 (cc)0–3000 S
Temp. 10– 100 °C
Temp. 2;0–100 °C
Difference0–3000 S
Sample flow0–20 l/h
pH0 – 14 pH
Ammonia0– 500 ppm
5.3.2.50Delay: Duration, the activation of the alarm relay is retarded after
the measuring value has risen above/fallen below the programmed
alarm.
Range. 0–600 Sec
5.3.2.1Function = Control upwards/downwards:
The relays may be used to drive control units such as solenoid
valves, membrane dosing pumps or motor valves. When driving a
motor valve both relays are needed, relay 1 to open and relay 2 to
close the valve.
5.3.2.22Parameter: Choose on of the following process values.
Examples of metering devices that are driven time proportional are
solenoid valves, peristaltic pumps.
Dosing is controlled by the operating time.
5.3.2.32.20Cycle time: duration of one control cycle (on/off change).
Range: 0–600 sec.
5.3.2.32.30Response time: Minimal time the metering device needs to react.
5.3.2.32.4Control Parameters
5.3.2.32.1Actuator = Frequency
5.3.2.32.21Pulse frequency: Max. pulses per minute the device is able to re-
5.3.2.32.31Control Parameters
Range: 0–240 sec.
Range for each Parameter same as 5.2.1.40, p. 60
Examples of metering devices that are pulse frequency driven are
the classic membrane pumps with a potential free triggering input.
Dosing is controlled by the repetition speed of dosing shots.
spond to. Range: 20–300/min.
Range for each Parameter same as 5.2.1.40, p. 60
5.3.2.32.1Actuator = Motor valve
Dosing is controlled by the position of a motor driven mixing valve.
5.3.2.32.22Run time: Time needed to open a completely closed valve
Range: 5–300 Sec.
5.3.2.32.32Neutral zone: Minimal response time in % of the runtime. If the re-
5.3.2.32.4Control Parameters
quested dosing output is smaller than the response time, no
change will take place.
Range: 1–20 %
Range for each Parameter same as 5.2.1.40, p. 60
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5.3.2.1Function = Timer:
The relay will be activated repetitively depending on the programmed time scheme.
5.3.2.340Interval/Start time/Calendar: Dependent on options operating
mode.
5.3.2.44Run time: time the relay stays active.
Range: 5–32’400 Sec
5.3.2.54Delay: during run time plus the delay time the signal and control
outputs are held in the operating mode programmed below.
Range: 0–6’000 Sec
5.3.2.6Signal Outputs: select the behavior of the signal outputs when the
relay closes. Available values: cont., hold, off
5.3.2.7Output/Control: select the behavior of the control outputs when the
5.3.2.1Function = Fieldbus:
relay closes. Available values: cont., hold, off
The relay will be switched via the Profibus input. No further parameters are needed.
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5.3.4Input: The functions of the relays and signal outputs can be defined depending on the position of the input contact, i.e. no function,
closed or open.
5.3.4.1Active: Define when the input should be active:
No:Input is never active.
When closed Input is active if the input relay is closed
When open: Input is active if the input relay is open
5.3.4.2Signal Outputs: Select the operation mode of the signal outputs
when the relay is active:
Continuous:Signal outputs continue to issue the measured
Hold:Signal outputs issue the last valid measured value.
Off:Set to 0 or 4 mA respectively. Errors, except fatal
5.3.4.3Output/ Control: (relay or signal output):
Continuous:Controller continues normally.
Hold:Controller continues on the last valid value.
Off:Controller is switched off.
5.3.4.4Fault:
value.
Measurement is interrupted. Errors, except fatal
errors, are not issued.
errors, are not issued.
No:No message is issued in pending error list and the
alarm relay does not close when input is active.
Message E024 is stored in the message list.
Yes Message E024 is issued and stored in the mes-
sage list. The Alarm relay closes when input is
active.
5.3.4.5Delay: Time which the instrument waits, after the input is deactivated, before returning to normal operation.
Range: 0–6‘000 Sec
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5.4 Miscellaneous
5.4.1Language: Set the desired language.
Available settings: German /English / French / Spanish / Italian
5.4.2Set defaults: Reset the instrument to factory default values in three
different ways:
Calibration: Sets calibration values back to default. All other
values are kept in memory.
In parts: Communication parameters are kept in memory. All
other values are set back to default values.
Completely: Sets back all values including communication
parameters.
5.4.3Load Firmware: Firmware updates should be done by instructed
service personnel only.
5.4.4Password: Select a password different from 0000 to prevent unauthorized access to the menus “Messages”, “Maintenance”, “Operation” and “Installation”.
Each menu may be protected by a different password.
If you forgot the passwords, contact the closest SWAN representa-
tive.
5.4.5Sample ID: Identify the process value with any meaningful text,
such as KKS number.
5.4.6Line Break Detection: Define if message E028 should be issued in
case of a line break on signal output 1 or 2.
Choose between <Yes> or <No>.
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5.5 Interface
Select one of the following communication protocols. Depending on
your selection, different parameters must be defined.